US20080083481A1 - Method and Apparatus to Create Electrical Junctions for Information Routing in Textile Structures - Google Patents
Method and Apparatus to Create Electrical Junctions for Information Routing in Textile Structures Download PDFInfo
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- US20080083481A1 US20080083481A1 US11/875,010 US87501007A US2008083481A1 US 20080083481 A1 US20080083481 A1 US 20080083481A1 US 87501007 A US87501007 A US 87501007A US 2008083481 A1 US2008083481 A1 US 2008083481A1
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
- H01R43/02—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for soldered or welded connections
- H01R43/0207—Ultrasonic-, H.F.-, cold- or impact welding
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/0286—Programmable, customizable or modifiable circuits
- H05K1/0287—Programmable, customizable or modifiable circuits having an universal lay-out, e.g. pad or land grid patterns or mesh patterns
- H05K1/0289—Programmable, customizable or modifiable circuits having an universal lay-out, e.g. pad or land grid patterns or mesh patterns having a matrix lay-out, i.e. having selectively interconnectable sets of X-conductors and Y-conductors in different planes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2203/00—Form of contacts
- H01H2203/008—Wires
- H01H2203/0085—Layered switches integrated into garment, clothes or textile
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/02—Fillers; Particles; Fibers; Reinforcement materials
- H05K2201/0275—Fibers and reinforcement materials
- H05K2201/0281—Conductive fibers
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/02—Fillers; Particles; Fibers; Reinforcement materials
- H05K2201/0275—Fibers and reinforcement materials
- H05K2201/029—Woven fibrous reinforcement or textile
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2203/00—Indexing scheme relating to apparatus or processes for manufacturing printed circuits covered by H05K3/00
- H05K2203/01—Tools for processing; Objects used during processing
- H05K2203/0104—Tools for processing; Objects used during processing for patterning or coating
- H05K2203/0126—Dispenser, e.g. for solder paste, for supplying conductive paste for screen printing or for filling holes
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2203/00—Indexing scheme relating to apparatus or processes for manufacturing printed circuits covered by H05K3/00
- H05K2203/07—Treatments involving liquids, e.g. plating, rinsing
- H05K2203/0779—Treatments involving liquids, e.g. plating, rinsing characterised by the specific liquids involved
- H05K2203/0783—Using solvent, e.g. for cleaning; Regulating solvent content of pastes or coatings for adjusting the viscosity
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/10—Apparatus or processes for manufacturing printed circuits in which conductive material is applied to the insulating support in such a manner as to form the desired conductive pattern
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/30—Assembling printed circuits with electric components, e.g. with resistor
- H05K3/32—Assembling printed circuits with electric components, e.g. with resistor electrically connecting electric components or wires to printed circuits
- H05K3/328—Assembling printed circuits with electric components, e.g. with resistor electrically connecting electric components or wires to printed circuits by welding
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/40—Forming printed elements for providing electric connections to or between printed circuits
- H05K3/4038—Through-connections; Vertical interconnect access [VIA] connections
- H05K3/4053—Through-connections; Vertical interconnect access [VIA] connections by thick-film techniques
- H05K3/4069—Through-connections; Vertical interconnect access [VIA] connections by thick-film techniques for via connections in organic insulating substrates
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/40—Forming printed elements for providing electric connections to or between printed circuits
- H05K3/4038—Through-connections; Vertical interconnect access [VIA] connections
- H05K3/4084—Through-connections; Vertical interconnect access [VIA] connections by deforming at least one of the conductive layers
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S2/00—Apparel
- Y10S2/905—Electric
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
- Y10T156/10—Methods of surface bonding and/or assembly therefor
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
- Y10T442/30—Woven fabric [i.e., woven strand or strip material]
- Y10T442/3179—Woven fabric is characterized by a particular or differential weave other than fabric in which the strand denier or warp/weft pick count is specified
- Y10T442/322—Warp differs from weft
- Y10T442/3228—Materials differ
Definitions
- the present invention is generally related to a fabric or garment, and a method for creating a network of sensors in such substrate and more particularly to a method and apparatus for creating electrical junctions for information (signal) routing paths within the same.
- Sensors and sensor networks are pervasive—from homes to battlefields, and everywhere in-between. They are facilitating information processing anytime, anywhere for anyone.
- textiles are pervasive and span the continuum of life from infants to senior citizens; from fashion to functionality; and from daily clothing to geotextiles.
- Today's individual is extremely active—or dynamic—and is demanding.
- textiles provide the ultimate flexibility in system design by virtue of the broad range of fibers, yarns, fabrics, and manufacturing techniques that can be deployed to create products for desired end-use applications.
- one embodiment of the method among others can be summarized by the following steps: bringing individually conductive fibers into contact with each other at a junction point; and forming a bond between the conductive fibers at the junction point.
- the method may also include the steps of depositing a conductive paste at the junction of the two fibers and/or removing insulation from two intersecting individually insulated conductive fibers to expose the individually conductive fibers.
- a system for forming a junction between conductive fibers that are incorporated into a fabric.
- one embodiment of such a system can include an apparatus that brings the exposed individually conductive fibers into contact with each other at the junction, and a second apparatus that aids in formation of a bond between the conductive fibers at the said junction.
- the system is situated in a fabric manufacturing assembly line.
- the system further comprises a turntable into which each of the first, second, and third apparatuses is incorporated.
- FIG. 1 illustrates an embodiment of a fabric incorporating a network of sensors that can be, optionally, fashioned into a wearable garment.
- FIG. 2 illustrates the resultant junction of intersecting electrically conductive fibers using the disclosed systems and apparatuses.
- FIG. 3 illustrates an exemplary information route or data path established between the sensor and data output connector at the respective ends of the two fibers through the electrical junction formed in FIG. 2 .
- FIG. 4 illustrates an exemplary network of information routes between sensors and data output devices through the electrical junctions in FIG. 2 established over a large surface area.
- FIG. 5 illustrates an ultrasonic welding device used in one embodiment of the disclosed system to form the junction of FIG. 2 .
- FIG. 6 illustrates a system used to implement one exemplary embodiment for forming the junction of FIG. 2 .
- FIG. 7 illustrates an alternative system used to implement another exemplary embodiment for forming the junction of FIG. 2 .
- FIG. 8 illustrates an embodiment of a textillography device that may be used in the system of FIG. 7
- FIG. 9 illustrates one embodiment of a method of using the textillography device of FIG. 8 to form a junction of conductive fibers in a fabric.
- FIG. 1 is a conceptual representation of this integration between a textile fabric and a network of sensors leading to an intelligent information infrastructure that is customizable, has the typical look and feel of traditional textiles, and has the ability to meet a host of demands ranging from those of dynamic individuals to the deployment of a massive number of sensors and information processing devices over large surface areas in the environment.
- the term i-Textiles conveys the “dynamic” or “interactive” nature of these new structures that goes beyond the passive incorporation of “electronic” elements into textile structures.
- i-Textiles information is routed between the various sensors and information processing devices through the fibers/yarns in the fabric. These sensors and devices may be distributed anywhere on the fabric depending on the field of application, but they must interact with each other through the fabric on which they are mounted. Therefore, a “data path” or “information route” must be established in the fabric for the communication channels between the sensors/devices on it and with external devices—either connected physically or via wireless communication. Since the numbers and types of sensors/devices deployed will depend on the end-use application, there is a need for a robust, automatic and cost-effective information routing technology.
- the disclosed methods and systems produce an electrical junction in a fabric that has a multi-functional information infrastructure integrated within the fabric.
- the junction can be formed either “on-line” while the fabric is being formed, or “off-line” after the fabric is formed.
- the information infrastructure component can be a conductive fiber made from “intrinsically conductive polymers.” Electrically conducting polymers have a conjugated structure, i.e., alternating single and double bonds between the carbon atoms of the main chain. For example, polyacetylene can be prepared in a form with a high electrical conductivity and its conductivity can be further increased by chemical oxidation. Many other polymers with a conjugated carbon main chain have shown the same behavior, e.g., polythiophene and polypyrrole.
- thermoplastic conductive material that can be doped and used as the conductive fibers include nylon, polyester, and vinyl.
- Metallic fibers such as copper and stainless steel insulated with polyethylene or polyvinyl chloride, can also be used as the conducting fibers in the fabric. With their exceptional current-carrying capacity, copper and stainless steel are more efficient than any doped polymeric fibers. Also, metallic fibers are strong and they resist stretching, neck-down, creep, nicks, and breaks very well. Therefore, metallic fibers of very small diameter, e.g., of the order of 0.1 mm, are sufficient to carry information from the sensors to the monitoring unit. Even with insulation, the fiber diameter is preferably less that 0.3 mm, and hence these fibers are very flexible and can be easily incorporated into the fabric.
- the preferred electrical conducting materials for the information infrastructure component for the fabric are: (i) doped nylon fibers with conductive inorganic particles and insulated with PVC sheath; (ii) insulated stainless steel fibers; and (iii) thin gauge copper wires with polyethylene sheath. All of these fibers can readily be incorporated into the fabric and can serve to transmit signals through them.
- An example of an available conducting fiber is X-STATIC® coated nylon with PVC insulation (T66) manufactured by and commercially available from Sauquoit Industries of Scranton, Pa., USA.
- An example of an available thin copper wire is 24-gauge insulated copper wire from Ack Electronics of Atlanta, Ga., USA.
- high conductivity yarns suitable for use as the electrical conducting component include BEKINOX® and BEKITEX®, manufactured by and commercially available from Bekaert Corporation, Marietta, Ga., USA, which is a subsidiary of Bekintex NV, Wetteren, Belgium.
- BEKINOX VN brand yarn is made up of stainless steel fibers and has a resistivity of 60 ohm-meter. The bending rigidity of this yarn is comparable to that of the polyamide high-resistance yarns and can be easily incorporated into the information infrastructure in our present invention.
- BEKITEX BK50 is a polyester spun yarn with 20% stainless steel fibers, and can be used in the fabric to obtain electrostatic control or electrical conductivity.
- the conductive fibers can be woven into a fabric in the warp or filling direction or both. Additionally, the fabric/garment with the conductive fiber can be knitted, as opposed to being woven.
- the disclosed methods relate to forming physical data paths, e.g., realizing “electrical junctions” in the fabric that include the conductive fibers.
- a robust and cost-effective junction technology is desirable for creating i-Textiles.
- the disclosed methods and systems relate to a “scalable” junction technology that facilitates the production of the fabric on a large scale (e.g., quantity-wise) and dimension (e.g., on larger surface areas). This junction technology will be referred to herein as “textillography.” Textillography enables the rapid realization of information routing architectures in textile structures.
- the disclosed methods and systems are automated, although the steps can also be performed manually. Automation is preferred for the reproducibility and repeatability of the various steps to create a uniform product on a continuous basis and in large quantities, if desired.
- Electrical junctions between conductive fibers incorporated into the fabric can be achieved by the following operations, some of which are optional:
- any insulation present at the junction of the two fibers may be desirable to remove any insulation present at the junction of the two fibers.
- Suitable removal techniques include chemical etching, mechanical removal, and any spot welding technique such as ultrasonic welding, laser light application, or other localized heating technique.
- the junction zone is chemically softened for the effective removal of the insulation, such as a vinyl sheath.
- the process variables for chemical etching are: (i) the amount of insulation present; (ii) the chemical used in the process; (iii) the concentration of the chemical; (iv) the amount of chemical applied; and (v) duration of chemical application. For instance, acetone has been found to work quite well as a chemical-softening agent for insulation such as a vinyl sheath.
- the conductive fibers may not be insulated. In such cases, it would not be necessary to carry out this step.
- the next step is to establish a junction between the electrical conductive fibers, as shown in FIG. 2 at the cross-section between two or more fibers.
- the intersection zone is “excited” using an ultrasonic welding device that helps establish the desired contact between the fibers in the fabric.
- a Pinsonic ultrasonic quilting machine may be used as the ultrasonic welding device.
- the Pinsonic machine manufactured by Morrison Berkshire Inc. of North Adams, Mass., US, eliminates the need for additional adhesive products to be incorporated in the product even when joining materials with different melting points.
- the ultrasonic welding device 150 includes an anvil 118 and a sonotrode 120 .
- the anvil 118 is usually made of hardened steel and has a pattern of raised areas machined into it.
- Disposed between the anvil 118 and the sonotrode 120 is the fabric 110 that includes two intersecting fibers (as shown in greater detail in FIG. 2 ).
- the fibers are depicted at the junction point 152 as a fiber 154 in the x-direction and a fiber 156 in the y-direction.
- the sonotrode 120 is connected to the part of a joint turned towards it, which causes it to vibrate in a longitudinal direction. The other part of the joint does not move, as this is secured to a fixed anvil 118 .
- the connecting surfaces of the sonotrode 120 and the anvil 118 feature a specific configuration.
- An ultrasonic generator converts the main current into a high frequency AC current with a certain operating frequency.
- the power requirement depends on the application and can be from, for example, 500 to 10,000 watts (W).
- the electrical vibrations are changed in a converter unit (not shown) into mechanical vibrations of the same frequency, transferred via a booster (a transformer unit, also not shown) and the sonotrode 120 onto the fibers 154 , 156 that are to be joined.
- a control unit can control and monitor the welding process and also allow for the electronic assessment of the relevant welding parameters.
- ultrasonic metal welding is classified as a “cold welding process.” Because of intense friction at the welding points the insulating skin is broken open and the two fibers 154 , 156 pressed together at the junction point 152 , while at the same time pressure is exerted. These processes trigger the action of atomic-binding forces. The relatively small temperature increase is far below the melting temperature of the fibers, and makes little contribution to the bonding. As there are no structural changes to the fibers, the ultrasonic welding process does not suffer from the adverse effects that such changes can bring.
- the junction between the electrical conductive fibers can be accomplished in a manner other than ultrasonic bonding.
- chemical bonding, etching, or heating can be used to accomplish the desired junction.
- the junction 152 between the conductive yarns can be further established by applying a conductive paste in the intersection zone between the conductive yarns/fibers 154 , 156 .
- Process variables include: (i) the properties of the conductive paste used in the process; and (ii) the quantity of the paste applied to the intersection zone.
- the conductive paste should be chosen such that it offers only minimum electrical resistance, adheres well to the conductive fibers 154 , 156 , and does not chemically react with either the conductive fibers 154 , 156 or the other components of the fabric.
- Magnolia Product 3870 a silver-filled epoxy, room temperature curing paste, is a suitable conducting paste.
- the Magnolia Product 3870 is manufactured by and commercially available from Magnolia Plastics, Inc. of Chamblee, Ga., USA. It also cures well at room temperature and does not react with a polyamide conductive yarn/fabric.
- Another example of a conductive paste is DuPont's product 4922N, a silver composition thinner.
- the junction point 152 may be further re-insulated to prevent it from shorting in the presence of moisture.
- a polyester/urethane based resin can be used to insulate the junction point 152 .
- the insulating layer preferably does not chemically react with the optional conductive paste or other components in the fabric. Further, the insulation should adhere well to the paste and offer adequate insulation.
- a sensor or a sensor/data output connector can be attached at the junction point 152 .
- the T-connector can connect a sensor, such as a GPS sensor, environmental sensor, an EKG sensor or a microphone to the fabric ( FIGS. 3 and 4 ).
- on-line e.g., during production of the fabric
- off-line e.g., after the fabric has already been woven or knitted
- the fabric's topology is defined and better controlled while it is being produced, which makes on-line textillography advantageous.
- the overall fabric production process may be slowed, thus affecting fabric production rate if the textillography process is carried out on-line.
- FIG. 6 depicts the system 100 that performs the off-line textillography, and also shows the sequence of operations for one embodiment of the above-described method of creating a junction.
- a fabric 110 that includes intersecting electrical conductive fibers is disposed between a placing table 112 and a masking device 114 with dispensers 116 .
- the masking device 114 may be, for example, a mesh.
- the masking device may be patterned with a via at the intersection of the electrical conductive fibers. As such, the masking device 114 aids in identifying the desired location for the electrically conductive bond between all or select intersecting electrical conductive fibers or conductors.
- a solvent is applied at the desired junction point by pressing it through the dispensers 116 of mesh 114 .
- the solvent is used to dissolve any insulation around the fibers specifically at the location of the junction point 152 .
- this optional step there is no need to carry out this optional step.
- the fabric 110 is moved to a separate station where it undergoes the establishment of an electrical connection between the fibers.
- the junction is established with the ultrasonic welding device 150 .
- the fabric 110 is placed between the anvil 118 and the sonotrode 120 .
- the fabric 110 has embossed junction points 122 according to the profile of the anvil 118 .
- the ultrasonic welding device 114 can also aid in identifying the desired location for the electrically conductive bond between all or select intersecting electrical conductive fibers or conductors.
- the junctions also can be established through chemical bonding or laser etching.
- a conductive epoxy is placed at junction points 152 at a separation station by, for example, pressing it through the dispensers 116 of mesh 114 . Additional stations or steps may be provided where the junction points 152 can be re-insulated, and optional sensors or connectors may be applied.
- the off-line system 100 may be in the form of a “turn-table” type configuration as shown, or in a straight assembly-line process. The system is preferably designed so that multiple pieces of fabric can be processed in sequence, and/or at the same time to facilitate the processing of long and/or wide lengths of fabric.
- FIG. 7 depicts the system 160 that performs the on-line textillography. Using this on-line system 160 , the junction points 152 are formed during production of the fabric 110 . While the system 160 is depicted in FIG. 7 for production of a woven fabric, similar principles can be incorporated in the production of a knitted fabric.
- the fibers of the fabric 100 are produced on a loom 162 .
- Harnesses 164 produce a woven fabric 110 , after which the fabric 110 passes through a beater roll 166 .
- junction points 152 in the fabric 110 are formed by one or more textillography devices 168 that may be disposed, for example, on a rail 170 .
- the textillography device desirably operates in real-time during the production process at the desired warp/filling intersection, after the fabric 110 has been formed (e.g., after the beater 166 , as shown).
- the rail 170 is movable in both the x-, y-, and/or z-directions and can accommodate multiple textillography devices in order to form more than one junction at one time.
- the system 160 may include an array of rails 170 where the textillography devices can form the junction either at one time, or in sequence.
- junction points 152 are therefore woven into the fabric or textile 174 , after which the fabric 174 is spooled up on a take-up roll 176 . It should be noted that when an array of rails 170 is used to hold textillography devices 168 , the distance between the first rail and the take-up roll 176 may be much longer than that depicted in FIG. 7 .
- FIG. 8 ( a ) shows an enlarged side view of an exemplary textillography device 168 that may be disposed upon the rail 170 .
- the textillography device 168 includes an optional first dispenser 178 that deposits the solvent at the junction point 152 .
- a sonotrode 120 is disposed laterally in relation to the optional first dispenser 178 , with the anvil 118 being disposed beneath the junction point 152 on the fabric 110 .
- An optional second dispenser 180 for dispensing conductive paste is laterally disposed near the sonotrode 120 .
- FIG. 8 ( b ) shows the top view of the fiber or yarn intersection profile on the anvil 118 . While an ultrasonic welding device has specifically been depicted in FIGS. 8 ( a ) and 8 ( b ), similar textillography devices 168 can, alternatively, have a dispenser for chemical bonding, or a laser for laser-etching, in order to establish the electrical junction between two fibers in the fabric 110 .
- FIG. 9 illustrates the textillography device 168 in operation, through three steps.
- a fabric 110 that includes intersecting electrical conductive fibers is disposed between the anvil 118 and the dispenser 178 .
- the dispenser 178 dispenses solvent to dissolve insulation around the fibers specifically at the location of the junction point 152 .
- the fabric 110 is disposed beneath a separate component of the textillography device 168 , where it undergoes the establishment of an electrical connection between the fibers.
- the junction may optionally be established by the anvil 118 and the sonotrode 120 .
- a conductive epoxy is placed on the junction points 152 via dispenser 180 .
- the present invention is generally related to a fabric or garment, and a method for creating a network of sensors in such substrate and more particularly to a method and apparatus for creating electrical junctions for information (signal) routing paths within the same.
- Sensors and sensor networks are pervasive—from homes to battlefields, and everywhere in-between. They are facilitating information processing anytime, anywhere for anyone.
- textiles are pervasive and span the continuum of life from infants to senior citizens; from fashion to functionality; and from daily clothing to geotextiles.
- Today's individual is extremely active—or dynamic—and is demanding.
- textiles provide the ultimate flexibility in system design by virtue of the broad range of fibers, yarns, fabrics, and manufacturing techniques that can be deployed to create products for desired end-use applications.
- one embodiment of the method among others can be summarized by the following steps: bringing individually conductive fibers into contact with each other at a junction point; and forming a bond between the conductive fibers at the junction point.
- the method may also include the steps of depositing a conductive paste at the junction of the two fibers and/or removing insulation from two intersecting individually insulated conductive fibers to expose the individually conductive fibers.
- a system for forming a junction between conductive fibers that are incorporated into a fabric.
- one embodiment of such a system can include an apparatus that brings the exposed individually conductive fibers into contact with each other at the junction, and a second apparatus that aids in formation of a bond between the conductive fibers at the said junction.
- the system is situated in a fabric manufacturing assembly line.
- the system further comprises a turntable into which each of the first, second, and third apparatuses is incorporated.
- FIG. 1 illustrates an embodiment of a fabric incorporating a network of sensors that can be, optionally, fashioned into a wearable garment.
- FIG. 2 illustrates the resultant junction of intersecting electrically conductive fibers using the disclosed systems and apparatuses.
- FIG. 3 illustrates an exemplary information route or data path established between the sensor and data output connector at the respective ends of the two fibers through the electrical junction formed in FIG. 2 .
- FIG. 4 illustrates an exemplary network of information routes between sensors and data output devices through the electrical junctions in FIG. 2 established over a large surface area.
- FIG. 5 illustrates an ultrasonic welding device used in one embodiment of the disclosed system to form the junction of FIG. 2 .
- FIG. 6 illustrates a system used to implement one exemplary embodiment for forming the junction of FIG. 2 .
- FIG. 7 illustrates an alternative system used to implement another exemplary embodiment for forming the junction of FIG. 2 .
- FIG. 8 illustrates an embodiment of a textillography device that may be used in the system of FIG. 7
- FIG. 9 illustrates one embodiment of a method of using the textillography device of FIG. 8 to form a junction of conductive fibers in a fabric.
- FIG. 1 is a conceptual representation of this integration between a textile fabric and a network of sensors leading to an intelligent information infrastructure that is customizable, has the typical look and feel of traditional textiles, and has the ability to meet a host of demands ranging from those of dynamic individuals to the deployment of a massive number of sensors and information processing devices over large surface areas in the environment.
- the term i-Textiles conveys the “dynamic” or “interactive” nature of these new structures that goes beyond the passive incorporation of “electronic” elements into textile structures.
- i-Textiles information is routed between the various sensors and information processing devices through the fibers/yarns in the fabric. These sensors and devices may be distributed anywhere on the fabric depending on the field of application, but they must interact with each other through the fabric on which they are mounted. Therefore, a “data path” or “information route” must be established in the fabric for the communication channels between the sensors/devices on it and with external devices—either connected physically or via wireless communication. Since the numbers and types of sensors/devices deployed will depend on the end-use application, there is a need for a robust, automatic and cost-effective information routing technology.
- the disclosed methods and systems produce an electrical junction in a fabric that has a multi-functional information infrastructure integrated within the fabric.
- the junction can be formed either “on-line” while the fabric is being formed, or “off-line” after the fabric is formed.
- the information infrastructure component can be a conductive fiber made from “intrinsically conductive polymers.” Electrically conducting polymers have a conjugated structure, i.e., alternating single and double bonds between the carbon atoms of the main chain. For example, polyacetylene can be prepared in a form with a high electrical conductivity and its conductivity can be further increased by chemical oxidation. Many other polymers with a conjugated carbon main chain have shown the same behavior, e.g., polythiophene and polypyrrole.
- thermoplastic conductive material that can be doped and used as the conductive fibers include nylon, polyester, and vinyl.
- Metallic fibers such as copper and stainless steel insulated with polyethylene or polyvinyl chloride, can also be used as the conducting fibers in the fabric. With their exceptional current-carrying capacity, copper and stainless steel are more efficient than any doped polymeric fibers. Also, metallic fibers are strong and they resist stretching, neck-down, creep, nicks, and breaks very well. Therefore, metallic fibers of very small diameter, e.g., of the order of 0.1 mm, are sufficient to carry information from the sensors to the monitoring unit. Even with insulation, the fiber diameter is preferably less that 0.3 mm, and hence these fibers are very flexible and can be easily incorporated into the fabric.
- the preferred electrical conducting materials for the information infrastructure component for the fabric are: (i) doped nylon fibers with conductive inorganic particles and insulated with PVC sheath; (ii) insulated stainless steel fibers; and (iii) thin gauge copper wires with polyethylene sheath. All of these fibers can readily be incorporated into the fabric and can serve to transmit signals through them.
- An example of an available conducting fiber is X-STATIC® coated nylon with PVC insulation (T66) manufactured by and commercially available from Sauquoit Industries of Scranton, Pa., USA.
- An example of an available thin copper wire is 24-gauge insulated copper wire from Ack Electronics of Atlanta, Ga., USA.
- high conductivity yarns suitable for use as the electrical conducting component include BEKINOX® and BEKITEX®, manufactured by and commercially available from Bekaert Corporation, Marietta, Ga., USA, which is a subsidiary of Bekintex NV, Wetteren, Belgium.
- BEKINOX VN brand yarn is made up of stainless steel fibers and has a resistivity of 60 ohm-meter. The bending rigidity of this yarn is comparable to that of the polyamide high-resistance yarns and can be easily incorporated into the information infrastructure in our present invention.
- BEKITEX BK50 is a polyester spun yarn with 20% stainless steel fibers, and can be used in the fabric to obtain electrostatic control or electrical conductivity.
- the conductive fibers can be woven into a fabric in the warp or filling direction or both. Additionally, the fabric/garment with the conductive fiber can be knitted, as opposed to being woven.
- the disclosed methods relate to forming physical data paths, e.g., realizing “electrical junctions” in the fabric that include the conductive fibers.
- a robust and cost-effective junction technology is desirable for creating i-Textiles.
- the disclosed methods and systems relate to a “scalable” junction technology that facilitates the production of the fabric on a large scale (e.g., quantity-wise) and dimension (e.g., on larger surface areas). This junction technology will be referred to herein as “textillography.” Textillography enables the rapid realization of information routing architectures in textile structures.
- the disclosed methods and systems are automated, although the steps can also be performed manually. Automation is preferred for the reproducibility and repeatability of the various steps to create a uniform product on a continuous basis and in large quantities, if desired.
- Electrical junctions between conductive fibers incorporated into the fabric can be achieved by the following operations, some of which are optional:
- any insulation present at the junction of the two fibers may be desirable to remove any insulation present at the junction of the two fibers.
- Suitable removal techniques include chemical etching, mechanical removal, and any spot welding technique such as ultrasonic welding, laser light application, or other localized heating technique.
- the junction zone is chemically softened for the effective removal of the insulation, such as a vinyl sheath.
- the process variables for chemical etching are: (i) the amount of insulation present; (ii) the chemical used in the process; (iii) the concentration of the chemical; (iv) the amount of chemical applied; and (v) duration of chemical application. For instance, acetone has been found to work quite well as a chemical-softening agent for insulation such as a vinyl sheath.
- the conductive fibers may not be insulated. In such cases, it would not be necessary to carry out this step.
- the next step is to establish a junction between the electrical conductive fibers, as shown in FIG. 2 at the cross-section between two or more fibers.
- the intersection zone is “excited” using an ultrasonic welding device that helps establish the desired contact between the fibers in the fabric.
- a Pinsonic ultrasonic quilting machine may be used as the ultrasonic welding device.
- the Pinsonic machine manufactured by Morrison Berkshire Inc. of North Adams, Mass., US, eliminates the need for additional adhesive products to be incorporated in the product even when joining materials with different melting points.
- the ultrasonic welding device 150 includes an anvil 118 and a sonotrode 120 .
- the anvil 118 is usually made of hardened steel and has a pattern of raised areas machined into it.
- Disposed between the anvil 118 and the sonotrode 120 is the fabric 110 that includes two intersecting fibers (as shown in greater detail in FIG. 2 ).
- the fibers are depicted at the junction point 152 as a fiber 154 in the x-direction and a fiber 156 in the y-direction.
- the sonotrode 120 is connected to the part of a joint turned towards it, which causes it to vibrate in a longitudinal direction. The other part of the joint does not move, as this is secured to a fixed anvil 118 .
- the connecting surfaces of the sonotrode 120 and the anvil 118 feature a specific configuration.
- An ultrasonic generator converts the main current into a high frequency AC current with a certain operating frequency.
- the power requirement depends on the application and can be from, for example, 500 to 10,000 watts (W).
- the electrical vibrations are changed in a converter unit (not shown) into mechanical vibrations of the same frequency, transferred via a booster (a transformer unit, also not shown) and the sonotrode 120 onto the fibers 154 , 156 that are to be joined.
- a control unit can control and monitor the welding process and also allow for the electronic assessment of the relevant welding parameters.
- ultrasonic metal welding is classified as a “cold welding process.” Because of intense friction at the welding points the insulating skin is broken open and the two fibers 154 , 156 pressed together at the junction point 152 , while at the same time pressure is exerted. These processes trigger the action of atomic-binding forces. The relatively small temperature increase is far below the melting temperature of the fibers, and makes little contribution to the bonding. As there are no structural changes to the fibers, the ultrasonic welding process does not suffer from the adverse effects that such changes can bring.
- the junction between the electrical conductive fibers can be accomplished in a manner other than ultrasonic bonding.
- chemical bonding, etching, or heating can be used to accomplish the desired junction.
- the junction 152 between the conductive yarns can be further established by applying a conductive paste in the intersection zone between the conductive yarns/fibers 154 , 156 .
- Process variables include: (i) the properties of the conductive paste used in the process; and (ii) the quantity of the paste applied to the intersection zone.
- the conductive paste should be chosen such that it offers only minimum electrical resistance, adheres well to the conductive fibers 154 , 156 , and does not chemically react with either the conductive fibers 154 , 156 or the other components of the fabric.
- Magnolia Product 3870 a silver-filled epoxy, room temperature curing paste, is a suitable conducting paste.
- the Magnolia Product 3870 is manufactured by and commercially available from Magnolia Plastics, Inc. of Chamblee, Ga., USA. It also cures well at room temperature and does not react with a polyamide conductive yarn/fabric.
- Another example of a conductive paste is DuPont's product 4922N, a silver composition thinner.
- the junction point 152 may be further re-insulated to prevent it from shorting in the presence of moisture.
- a polyester/urethane based resin can be used to insulate the junction point 152 .
- the insulating layer preferably does not chemically react with the optional conductive paste or other components in the fabric. Further, the insulation should adhere well to the paste and offer adequate insulation.
- a sensor or a sensor/data output connector can be attached at the junction point 152 .
- the T-connector can connect a sensor, such as a GPS sensor, environmental sensor, an EKG sensor or a microphone to the fabric ( FIGS. 3 and 4 ).
- on-line e.g., during production of the fabric
- off-line e.g., after the fabric has already been woven or knitted
- the fabric's topology is defined and better controlled while it is being produced, which makes on-line textillography advantageous.
- the overall fabric production process may be slowed, thus affecting fabric production rate if the textillography process is carried out on-line.
- FIG. 6 depicts the system 100 that performs the off-line textillography, and also shows the sequence of operations for one embodiment of the above-described method of creating a junction.
- a fabric 110 that includes intersecting electrical conductive fibers is disposed between a placing table 112 and a masking device 114 with dispensers 116 .
- the masking device 114 may be, for example, a mesh.
- the masking device may be patterned with a via at the intersection of the electrical conductive fibers. As such, the masking device 114 aids in identifying the desired location for the electrically conductive bond between all or select intersecting electrical conductive fibers or conductors.
- a solvent is applied at the desired junction point by pressing it through the dispensers 116 of mesh 114 .
- the solvent is used to dissolve any insulation around the fibers specifically at the location of the junction point 152 .
- this optional step there is no need to carry out this optional step.
- the fabric 110 is moved to a separate station where it undergoes the establishment of an electrical connection between the fibers.
- the junction is established with the ultrasonic welding device 150 .
- the fabric 110 is placed between the anvil 118 and the sonotrode 120 .
- the fabric 110 has embossed junction points 122 according to the profile of the anvil 118 .
- the ultrasonic welding device 114 can also aid in identifying the desired location for the electrically conductive bond between all or select intersecting electrical conductive fibers or conductors.
- the junctions also can be established through chemical bonding or laser etching.
- a conductive epoxy is placed at junction points 152 at a separation station by, for example, pressing it through the dispensers 116 of mesh 114 . Additional stations or steps may be provided where the junction points 152 can be re-insulated, and optional sensors or connectors may be applied.
- the off-line system 100 may be in the form of a “turn-table” type configuration as shown, or in a straight assembly-line process. The system is preferably designed so that multiple pieces of fabric can be processed in sequence, and/or at the same time to facilitate the processing of long and/or wide lengths of fabric.
- FIG. 7 depicts the system 160 that performs the on-line textillography. Using this on-line system 160 , the junction points 152 are formed during production of the fabric 110 . While the system 160 is depicted in FIG. 7 for production of a woven fabric, similar principles can be incorporated in the production of a knitted fabric.
- the fibers of the fabric 100 are produced on a loom 162 .
- Harnesses 164 produce a woven fabric 110 , after which the fabric 110 passes through a beater roll 166 .
- junction points 152 in the fabric 110 are formed by one or more textillography devices 168 that may be disposed, for example, on a rail 170 .
- the textillography device desirably operates in real-time during the production process at the desired warp/filling intersection, after the fabric 110 has been formed (e.g., after the beater 166 , as shown).
- the rail 170 is movable in both the x-, y-, and/or z-directions and can accommodate multiple textillography devices in order to form more than one junction at one time.
- the system 160 may include an array of rails 170 where the textillography devices can form the junction either at one time, or in sequence.
- junction points 152 are therefore woven into the fabric or textile 174 , after which the fabric 174 is spooled up on a take-up roll 176 . It should be noted that when an array of rails 170 is used to hold textillography devices 168 , the distance between the first rail and the take-up roll 176 may be much longer than that depicted in FIG. 7 .
- FIG. 8 ( a ) shows an enlarged side view of an exemplary textillography device 168 that may be disposed upon the rail 170 .
- the textillography device 168 includes an optional first dispenser 178 that deposits the solvent at the junction point 152 .
- a sonotrode 120 is disposed laterally in relation to the optional first dispenser 178 , with the anvil 118 being disposed beneath the junction point 152 on the fabric 110 .
- An optional second dispenser 180 for dispensing conductive paste is laterally disposed near the sonotrode 120 .
- FIG. 8 ( b ) shows the top view of the fiber or yarn intersection profile on the anvil 118 . While an ultrasonic welding device has specifically been depicted in FIGS. 8 ( a ) and 8 ( b ), similar textillography devices 168 can, alternatively, have a dispenser for chemical bonding, or a laser for laser-etching, in order to establish the electrical junction between two fibers in the fabric 110 .
- FIG. 9 illustrates the textillography device 168 in operation, through three steps.
- a fabric 110 that includes intersecting electrical conductive fibers is disposed between the anvil 118 and the dispenser 178 .
- the dispenser 178 dispenses solvent to dissolve insulation around the fibers specifically at the location of the junction point 152 .
- the fabric 110 is disposed beneath a separate component of the textillography device 168 , where it undergoes the establishment of an electrical connection between the fibers.
- the junction may optionally be established by the anvil 118 and the sonotrode 120 .
- a conductive epoxy is placed on the junction points 152 via dispenser 180 .
Abstract
Disclosed are systems or apparatuses and methods for forming a junction between conductive fibers that are incorporated into a fabric. Briefly, one method includes the steps of removing insulation from two intersecting individually insulated conductive fibers to expose the individually conductive fibers, bringing the exposed individually conductive fibers into contact with each other at a junction point, and forming a molecular bond between the conductive fibers at the junction point. Also disclosed are systems for forming a junction between conductive fibers that are incorporated into a fabric. In this regard, one embodiment of such a system can include a first apparatus that removes insulation from two intersecting individually insulated conductive fibers to expose the individually conductive fibers, a second apparatus that brings the exposed individually conductive fibers into contact with each other at a junction point, and a third apparatus that aids in formation of a molecular bond between the conductive fibers at the junction point.
Description
- This application is a divisional of U.S. application Ser. No. 10/759,691 filed Jan. 15, 2004.
- The U.S. government has a paid-up license in this invention and the right in limited circumstances to require the patent owner to license others on reasonable terms as provided for by the terms of Contract # F30602-00-2-0564 awarded by the Defense Advanced Research Projects Agency of the U.S. Department of Defense.
- The present invention is generally related to a fabric or garment, and a method for creating a network of sensors in such substrate and more particularly to a method and apparatus for creating electrical junctions for information (signal) routing paths within the same.
- Sensors and sensor networks are pervasive—from homes to battlefields, and everywhere in-between. They are facilitating information processing anytime, anywhere for anyone. Likewise, textiles are pervasive and span the continuum of life from infants to senior citizens; from fashion to functionality; and from daily clothing to geotextiles. Today's individual is extremely active—or dynamic—and is demanding. The explosion of technology—electronics, computing and communications in the form of sensors and sensor networks—has fueled this demanding nature of the individual seeking connectivity and interactivity with surrounding objects and the environment. Also, textiles provide the ultimate flexibility in system design by virtue of the broad range of fibers, yarns, fabrics, and manufacturing techniques that can be deployed to create products for desired end-use applications.
- The “technology enablers”—sensors and sensor networks—must be effectively incorporated into traditional textiles to add the third dimension of intelligence to textiles resulting in the next generation of “Interactive Textiles” or “i-Textiles,” and pave the way for the paradigm of “fabric is the computer”—the ultimate integration of textiles and information processing or computing.
- To-date, no such automated and/or scalable method or technology for information routing has been shown in the art. Thus, a heretofore unaddressed need exists in the industry to address the aforementioned deficiencies and inadequacies.
- Provided are systems and/or apparatuses and methods for creating data paths or information routes by forming junctions between conductive fibers, between a conductive fiber and a sensor, or a connector (for sensor or data output), or both that are incorporated into a fabric.
- Briefly described, one embodiment of the method among others, can be summarized by the following steps: bringing individually conductive fibers into contact with each other at a junction point; and forming a bond between the conductive fibers at the junction point. The method may also include the steps of depositing a conductive paste at the junction of the two fibers and/or removing insulation from two intersecting individually insulated conductive fibers to expose the individually conductive fibers.
- Also provided herein are systems and apparatuses for forming a junction between conductive fibers that are incorporated into a fabric. In this regard, one embodiment of such a system can include an apparatus that brings the exposed individually conductive fibers into contact with each other at the junction, and a second apparatus that aids in formation of a bond between the conductive fibers at the said junction. In one embodiment, the system is situated in a fabric manufacturing assembly line. In an alternative embodiment, the system further comprises a turntable into which each of the first, second, and third apparatuses is incorporated.
- Other systems, methods, features, and advantages of the disclosed systems, apparatuses, and methods will be or become apparent to one with skill in the art upon examination of the following drawings and detailed description. It is intended that all additional systems, apparatuses, methods, features, and advantages be included within this description, be within the scope of the present invention, and be protected by the accompanying claims.
- Many aspects of the disclosed systems and methods for forming junctions between conductive fibers and creating data paths or information routes within the fabric (or garment) can be better understood with reference to the following drawings. The components in the drawings are not necessarily to scale, emphasis instead being placed upon clearly illustrating the principles of the present invention. Moreover, in the drawings, like reference numerals designate corresponding parts throughout the several views.
-
FIG. 1 illustrates an embodiment of a fabric incorporating a network of sensors that can be, optionally, fashioned into a wearable garment. -
FIG. 2 illustrates the resultant junction of intersecting electrically conductive fibers using the disclosed systems and apparatuses. -
FIG. 3 illustrates an exemplary information route or data path established between the sensor and data output connector at the respective ends of the two fibers through the electrical junction formed inFIG. 2 . -
FIG. 4 illustrates an exemplary network of information routes between sensors and data output devices through the electrical junctions inFIG. 2 established over a large surface area. -
FIG. 5 illustrates an ultrasonic welding device used in one embodiment of the disclosed system to form the junction ofFIG. 2 . -
FIG. 6 illustrates a system used to implement one exemplary embodiment for forming the junction ofFIG. 2 . -
FIG. 7 illustrates an alternative system used to implement another exemplary embodiment for forming the junction ofFIG. 2 . -
FIG. 8 illustrates an embodiment of a textillography device that may be used in the system ofFIG. 7 -
FIG. 9 illustrates one embodiment of a method of using the textillography device ofFIG. 8 to form a junction of conductive fibers in a fabric. -
FIG. 1 is a conceptual representation of this integration between a textile fabric and a network of sensors leading to an intelligent information infrastructure that is customizable, has the typical look and feel of traditional textiles, and has the ability to meet a host of demands ranging from those of dynamic individuals to the deployment of a massive number of sensors and information processing devices over large surface areas in the environment. The term i-Textiles conveys the “dynamic” or “interactive” nature of these new structures that goes beyond the passive incorporation of “electronic” elements into textile structures. - With i-Textiles, information is routed between the various sensors and information processing devices through the fibers/yarns in the fabric. These sensors and devices may be distributed anywhere on the fabric depending on the field of application, but they must interact with each other through the fabric on which they are mounted. Therefore, a “data path” or “information route” must be established in the fabric for the communication channels between the sensors/devices on it and with external devices—either connected physically or via wireless communication. Since the numbers and types of sensors/devices deployed will depend on the end-use application, there is a need for a robust, automatic and cost-effective information routing technology.
- The disclosed methods and systems produce an electrical junction in a fabric that has a multi-functional information infrastructure integrated within the fabric. The junction can be formed either “on-line” while the fabric is being formed, or “off-line” after the fabric is formed.
- The information infrastructure component can be a conductive fiber made from “intrinsically conductive polymers.” Electrically conducting polymers have a conjugated structure, i.e., alternating single and double bonds between the carbon atoms of the main chain. For example, polyacetylene can be prepared in a form with a high electrical conductivity and its conductivity can be further increased by chemical oxidation. Many other polymers with a conjugated carbon main chain have shown the same behavior, e.g., polythiophene and polypyrrole.
- Other conducting fibers that can be used as an information infrastructure component are those doped with inorganic or metallic particles. The conductivity of these fibers is quite high if the fibers are sufficiently doped with metal particles, but this makes the fibers less flexible. Examples of thermoplastic conductive material that can be doped and used as the conductive fibers include nylon, polyester, and vinyl.
- Metallic fibers, such as copper and stainless steel insulated with polyethylene or polyvinyl chloride, can also be used as the conducting fibers in the fabric. With their exceptional current-carrying capacity, copper and stainless steel are more efficient than any doped polymeric fibers. Also, metallic fibers are strong and they resist stretching, neck-down, creep, nicks, and breaks very well. Therefore, metallic fibers of very small diameter, e.g., of the order of 0.1 mm, are sufficient to carry information from the sensors to the monitoring unit. Even with insulation, the fiber diameter is preferably less that 0.3 mm, and hence these fibers are very flexible and can be easily incorporated into the fabric.
- Thus, the preferred electrical conducting materials for the information infrastructure component for the fabric are: (i) doped nylon fibers with conductive inorganic particles and insulated with PVC sheath; (ii) insulated stainless steel fibers; and (iii) thin gauge copper wires with polyethylene sheath. All of these fibers can readily be incorporated into the fabric and can serve to transmit signals through them. An example of an available conducting fiber is X-STATIC® coated nylon with PVC insulation (T66) manufactured by and commercially available from Sauquoit Industries of Scranton, Pa., USA. An example of an available thin copper wire is 24-gauge insulated copper wire from Ack Electronics of Atlanta, Ga., USA.
- Examples of high conductivity yarns suitable for use as the electrical conducting component include BEKINOX® and BEKITEX®, manufactured by and commercially available from Bekaert Corporation, Marietta, Ga., USA, which is a subsidiary of Bekintex NV, Wetteren, Belgium. BEKINOX VN brand yarn is made up of stainless steel fibers and has a resistivity of 60 ohm-meter. The bending rigidity of this yarn is comparable to that of the polyamide high-resistance yarns and can be easily incorporated into the information infrastructure in our present invention. BEKITEX BK50 is a polyester spun yarn with 20% stainless steel fibers, and can be used in the fabric to obtain electrostatic control or electrical conductivity. The conductive fibers can be woven into a fabric in the warp or filling direction or both. Additionally, the fabric/garment with the conductive fiber can be knitted, as opposed to being woven.
- Creating Electrical Junctions in the Fabric
- The disclosed methods relate to forming physical data paths, e.g., realizing “electrical junctions” in the fabric that include the conductive fibers. A robust and cost-effective junction technology is desirable for creating i-Textiles. The disclosed methods and systems relate to a “scalable” junction technology that facilitates the production of the fabric on a large scale (e.g., quantity-wise) and dimension (e.g., on larger surface areas). This junction technology will be referred to herein as “textillography.” Textillography enables the rapid realization of information routing architectures in textile structures. Preferably, the disclosed methods and systems are automated, although the steps can also be performed manually. Automation is preferred for the reproducibility and repeatability of the various steps to create a uniform product on a continuous basis and in large quantities, if desired.
- Electrical junctions between conductive fibers incorporated into the fabric can be achieved by the following operations, some of which are optional:
- 1. Removal of any insulation on the conductive fibers at the zone of the desired junction where selected fibers intersect (also called the “intersection zone”);
- 2. Establishment of the junction between the conductive fibers at their intersection zone;
- 3. Optional application of a conductive paste;
- 4. Optional insulation of the junction point to prevent undesirable short circuits; and
- 5. Optional attachment of a sensor or connector (for sensor or data output).
- The details of the various steps are presently discussed. The steps of the following process are carried out in an automated fashion, either on-line during formation of the fabric, or off-line after the fabric has been formed.
- 1. Removal of Insulation
- In order to make a connection of intersecting conductive fibers, it may be desirable to remove any insulation present at the junction of the two fibers. This can be done by any one of a number of ways. Suitable removal techniques include chemical etching, mechanical removal, and any spot welding technique such as ultrasonic welding, laser light application, or other localized heating technique. Preferably, the junction zone is chemically softened for the effective removal of the insulation, such as a vinyl sheath. The process variables for chemical etching are: (i) the amount of insulation present; (ii) the chemical used in the process; (iii) the concentration of the chemical; (iv) the amount of chemical applied; and (v) duration of chemical application. For instance, acetone has been found to work quite well as a chemical-softening agent for insulation such as a vinyl sheath.
- In some cases, the conductive fibers may not be insulated. In such cases, it would not be necessary to carry out this step.
- 2. Establishment of the Junction Between the Electrical Conductive Fibers at an Intersection Zone
- The next step is to establish a junction between the electrical conductive fibers, as shown in
FIG. 2 at the cross-section between two or more fibers. In one embodiment, the intersection zone is “excited” using an ultrasonic welding device that helps establish the desired contact between the fibers in the fabric. A Pinsonic ultrasonic quilting machine, for example, may be used as the ultrasonic welding device. The Pinsonic machine, manufactured by Morrison Berkshire Inc. of North Adams, Mass., US, eliminates the need for additional adhesive products to be incorporated in the product even when joining materials with different melting points. - Another exemplary
ultrasonic welding device 150 is illustrated inFIG. 5 . Theultrasonic welding device 150 includes ananvil 118 and asonotrode 120. Theanvil 118 is usually made of hardened steel and has a pattern of raised areas machined into it. Disposed between theanvil 118 and thesonotrode 120 is thefabric 110 that includes two intersecting fibers (as shown in greater detail inFIG. 2 ). InFIG. 5 , the fibers are depicted at thejunction point 152 as afiber 154 in the x-direction and afiber 156 in the y-direction. - Energy needed for the ultrasonic welding is applied in the form of mechanical vibrations imposed on the
fibers sonotrode 120 is connected to the part of a joint turned towards it, which causes it to vibrate in a longitudinal direction. The other part of the joint does not move, as this is secured to afixed anvil 118. In order for a relative vibration movement to be incurred between thefibers sonotrode 120 and theanvil 118 feature a specific configuration. - An ultrasonic generator converts the main current into a high frequency AC current with a certain operating frequency. The power requirement depends on the application and can be from, for example, 500 to 10,000 watts (W). The electrical vibrations are changed in a converter unit (not shown) into mechanical vibrations of the same frequency, transferred via a booster (a transformer unit, also not shown) and the
sonotrode 120 onto thefibers - In metallurgical terms, ultrasonic metal welding is classified as a “cold welding process.” Because of intense friction at the welding points the insulating skin is broken open and the two
fibers junction point 152, while at the same time pressure is exerted. These processes trigger the action of atomic-binding forces. The relatively small temperature increase is far below the melting temperature of the fibers, and makes little contribution to the bonding. As there are no structural changes to the fibers, the ultrasonic welding process does not suffer from the adverse effects that such changes can bring. - In other embodiments, the junction between the electrical conductive fibers can be accomplished in a manner other than ultrasonic bonding. For example, chemical bonding, etching, or heating can be used to accomplish the desired junction.
- 3. Optional Application of a Conductive Paste
- The
junction 152 between the conductive yarns can be further established by applying a conductive paste in the intersection zone between the conductive yarns/fibers conductive fibers conductive fibers - 4. Optional Insulation of the Junction Point
- The
junction point 152 may be further re-insulated to prevent it from shorting in the presence of moisture. For example, a polyester/urethane based resin can be used to insulate thejunction point 152. The insulating layer preferably does not chemically react with the optional conductive paste or other components in the fabric. Further, the insulation should adhere well to the paste and offer adequate insulation. - 5. Optional Attachment of a Sensor or Sensor/Data Output Connector
- Additionally, if desired, either a sensor or a sensor/data output connector, such as a T-connector, can be attached at the
junction point 152. The T-connector can connect a sensor, such as a GPS sensor, environmental sensor, an EKG sensor or a microphone to the fabric (FIGS. 3 and 4 ). - Textillography Systems and Methods
- There are primarily two modes in which the textillography technology and above process can be applied to the fabric: on-line (e.g., during production of the fabric) or off-line (e.g., after the fabric has already been woven or knitted), each with its own set of advantages. For instance, the fabric's topology is defined and better controlled while it is being produced, which makes on-line textillography advantageous. The overall fabric production process, though, may be slowed, thus affecting fabric production rate if the textillography process is carried out on-line.
- 1. Off-Line Textillography
-
FIG. 6 depicts thesystem 100 that performs the off-line textillography, and also shows the sequence of operations for one embodiment of the above-described method of creating a junction. Atoptional Step 1, afabric 110 that includes intersecting electrical conductive fibers is disposed between a placing table 112 and amasking device 114 withdispensers 116. Themasking device 114 may be, for example, a mesh. The masking device may be patterned with a via at the intersection of the electrical conductive fibers. As such, themasking device 114 aids in identifying the desired location for the electrically conductive bond between all or select intersecting electrical conductive fibers or conductors. - A solvent is applied at the desired junction point by pressing it through the
dispensers 116 ofmesh 114. As noted previously, the solvent is used to dissolve any insulation around the fibers specifically at the location of thejunction point 152. Thus, if no insulation is present at the desired intersection zone, there is no need to carry out this optional step. - At
Step 2, thefabric 110 is moved to a separate station where it undergoes the establishment of an electrical connection between the fibers. As noted above and shown inFIG. 6 , preferably the junction is established with theultrasonic welding device 150. At this station, thefabric 110 is placed between theanvil 118 and thesonotrode 120. AfterStep 2, thefabric 110 has embossedjunction points 122 according to the profile of theanvil 118. Thus, theultrasonic welding device 114 can also aid in identifying the desired location for the electrically conductive bond between all or select intersecting electrical conductive fibers or conductors. Alternatively, at this station, the junctions also can be established through chemical bonding or laser etching. - At
optional Step 3, a conductive epoxy is placed atjunction points 152 at a separation station by, for example, pressing it through thedispensers 116 ofmesh 114. Additional stations or steps may be provided where thejunction points 152 can be re-insulated, and optional sensors or connectors may be applied. The off-line system 100 may be in the form of a “turn-table” type configuration as shown, or in a straight assembly-line process. The system is preferably designed so that multiple pieces of fabric can be processed in sequence, and/or at the same time to facilitate the processing of long and/or wide lengths of fabric. - 2. On-Line Textillography
-
FIG. 7 depicts thesystem 160 that performs the on-line textillography. Using this on-line system 160, thejunction points 152 are formed during production of thefabric 110. While thesystem 160 is depicted inFIG. 7 for production of a woven fabric, similar principles can be incorporated in the production of a knitted fabric. - With the weaving process of
FIG. 7 , the fibers of thefabric 100, including the electrical conductive fibers, are produced on aloom 162.Harnesses 164 produce awoven fabric 110, after which thefabric 110 passes through abeater roll 166. After passing through thebeater roll 166,junction points 152 in thefabric 110 are formed by one or moretextillography devices 168 that may be disposed, for example, on arail 170. The textillography device desirably operates in real-time during the production process at the desired warp/filling intersection, after thefabric 110 has been formed (e.g., after thebeater 166, as shown). Preferably, therail 170 is movable in both the x-, y-, and/or z-directions and can accommodate multiple textillography devices in order to form more than one junction at one time. Additionally, thesystem 160 may include an array ofrails 170 where the textillography devices can form the junction either at one time, or in sequence. - The junction points 152 are therefore woven into the fabric or
textile 174, after which thefabric 174 is spooled up on a take-up roll 176. It should be noted that when an array ofrails 170 is used to holdtextillography devices 168, the distance between the first rail and the take-up roll 176 may be much longer than that depicted inFIG. 7 . -
FIG. 8 (a) shows an enlarged side view of anexemplary textillography device 168 that may be disposed upon therail 170. Thetextillography device 168 includes an optionalfirst dispenser 178 that deposits the solvent at thejunction point 152. Asonotrode 120 is disposed laterally in relation to the optionalfirst dispenser 178, with theanvil 118 being disposed beneath thejunction point 152 on thefabric 110. An optionalsecond dispenser 180 for dispensing conductive paste is laterally disposed near thesonotrode 120.FIG. 8 (b) shows the top view of the fiber or yarn intersection profile on theanvil 118. While an ultrasonic welding device has specifically been depicted in FIGS. 8(a) and 8(b), similartextillography devices 168 can, alternatively, have a dispenser for chemical bonding, or a laser for laser-etching, in order to establish the electrical junction between two fibers in thefabric 110. -
FIG. 9 illustrates thetextillography device 168 in operation, through three steps. Atoptional Step 1, afabric 110 that includes intersecting electrical conductive fibers is disposed between theanvil 118 and thedispenser 178. Thedispenser 178 dispenses solvent to dissolve insulation around the fibers specifically at the location of thejunction point 152. AtStep 2, thefabric 110 is disposed beneath a separate component of thetextillography device 168, where it undergoes the establishment of an electrical connection between the fibers. As shown inFIGS. 6-8 , the junction may optionally be established by theanvil 118 and thesonotrode 120. Atoptional Step 3, a conductive epoxy is placed on thejunction points 152 viadispenser 180. - It should be emphasized that the above-described embodiments, particularly any “preferred” embodiments, are merely possible examples of implementations, and are merely set forth for a clear understanding of the various principles of the invention. Many variations and modifications may be made to the above-described embodiment(s) without departing substantially from the spirit and principles of the disclosed methods and systems. All such modifications and variations are included in the scope of this disclosure and protected by the following claims.
- The U.S. government has a paid-up license in this invention and the right in limited circumstances to require the patent owner to license others on reasonable terms as provided for by the terms of Contract # F30602-00-2-0564 awarded by the Defense Advanced Research Projects Agency of the U.S. Department of Defense.
- This application is a divisional of U.S. application, Ser. No. 10/759,691 filed Jan. 15, 2004.
- The present invention is generally related to a fabric or garment, and a method for creating a network of sensors in such substrate and more particularly to a method and apparatus for creating electrical junctions for information (signal) routing paths within the same.
- Sensors and sensor networks are pervasive—from homes to battlefields, and everywhere in-between. They are facilitating information processing anytime, anywhere for anyone. Likewise, textiles are pervasive and span the continuum of life from infants to senior citizens; from fashion to functionality; and from daily clothing to geotextiles. Today's individual is extremely active—or dynamic—and is demanding. The explosion of technology—electronics, computing and communications in the form of sensors and sensor networks—has fueled this demanding nature of the individual seeking connectivity and interactivity with surrounding objects and the environment. Also, textiles provide the ultimate flexibility in system design by virtue of the broad range of fibers, yarns, fabrics, and manufacturing techniques that can be deployed to create products for desired end-use applications.
- The “technology enablers”—sensors and sensor networks—must be effectively incorporated into traditional textiles to add the third dimension of intelligence to textiles resulting in the next generation of “Interactive Textiles” or “i-Textiles,” and pave the way for the paradigm of “fabric is the computer”—the ultimate integration of textiles and information processing or computing.
- To-date, no such automated and/or scalable method or technology for information routing has been shown in the art. Thus, a heretofore unaddressed need exists in the industry to address the aforementioned deficiencies and inadequacies.
- Provided are systems and/or apparatuses and methods for creating data paths or information routes by forming junctions between conductive fibers, between a conductive fiber and a sensor, or a connector (for sensor or data output), or both that are incorporated into a fabric.
- Briefly described, one embodiment of the method among others, can be summarized by the following steps: bringing individually conductive fibers into contact with each other at a junction point; and forming a bond between the conductive fibers at the junction point. The method may also include the steps of depositing a conductive paste at the junction of the two fibers and/or removing insulation from two intersecting individually insulated conductive fibers to expose the individually conductive fibers.
- Also provided herein are systems and apparatuses for forming a junction between conductive fibers that are incorporated into a fabric. In this regard, one embodiment of such a system can include an apparatus that brings the exposed individually conductive fibers into contact with each other at the junction, and a second apparatus that aids in formation of a bond between the conductive fibers at the said junction. In one embodiment, the system is situated in a fabric manufacturing assembly line. In an alternative embodiment, the system further comprises a turntable into which each of the first, second, and third apparatuses is incorporated.
- Other systems, methods, features, and advantages of the disclosed systems, apparatuses, and methods will be or become apparent to one with skill in the art upon examination of the following drawings and detailed description. It is intended that all additional systems, apparatuses, methods, features, and advantages be included within this description, be within the scope of the present invention, and be protected by the accompanying claims.
- Many aspects of the disclosed systems and methods for forming junctions between conductive fibers and creating data paths or information routes within the fabric (or garment) can be better understood with reference to the following drawings. The components in the drawings are not necessarily to scale, emphasis instead being placed upon clearly illustrating the principles of the present invention. Moreover, in the drawings, like reference numerals designate corresponding parts throughout the several views.
-
FIG. 1 illustrates an embodiment of a fabric incorporating a network of sensors that can be, optionally, fashioned into a wearable garment. -
FIG. 2 illustrates the resultant junction of intersecting electrically conductive fibers using the disclosed systems and apparatuses. -
FIG. 3 illustrates an exemplary information route or data path established between the sensor and data output connector at the respective ends of the two fibers through the electrical junction formed inFIG. 2 . -
FIG. 4 illustrates an exemplary network of information routes between sensors and data output devices through the electrical junctions inFIG. 2 established over a large surface area. -
FIG. 5 illustrates an ultrasonic welding device used in one embodiment of the disclosed system to form the junction ofFIG. 2 . -
FIG. 6 illustrates a system used to implement one exemplary embodiment for forming the junction ofFIG. 2 . -
FIG. 7 illustrates an alternative system used to implement another exemplary embodiment for forming the junction ofFIG. 2 . -
FIG. 8 illustrates an embodiment of a textillography device that may be used in the system ofFIG. 7 -
FIG. 9 illustrates one embodiment of a method of using the textillography device ofFIG. 8 to form a junction of conductive fibers in a fabric. -
FIG. 1 is a conceptual representation of this integration between a textile fabric and a network of sensors leading to an intelligent information infrastructure that is customizable, has the typical look and feel of traditional textiles, and has the ability to meet a host of demands ranging from those of dynamic individuals to the deployment of a massive number of sensors and information processing devices over large surface areas in the environment. The term i-Textiles conveys the “dynamic” or “interactive” nature of these new structures that goes beyond the passive incorporation of “electronic” elements into textile structures. - With i-Textiles, information is routed between the various sensors and information processing devices through the fibers/yarns in the fabric. These sensors and devices may be distributed anywhere on the fabric depending on the field of application, but they must interact with each other through the fabric on which they are mounted. Therefore, a “data path” or “information route” must be established in the fabric for the communication channels between the sensors/devices on it and with external devices—either connected physically or via wireless communication. Since the numbers and types of sensors/devices deployed will depend on the end-use application, there is a need for a robust, automatic and cost-effective information routing technology.
- The disclosed methods and systems produce an electrical junction in a fabric that has a multi-functional information infrastructure integrated within the fabric. The junction can be formed either “on-line” while the fabric is being formed, or “off-line” after the fabric is formed.
- The information infrastructure component can be a conductive fiber made from “intrinsically conductive polymers.” Electrically conducting polymers have a conjugated structure, i.e., alternating single and double bonds between the carbon atoms of the main chain. For example, polyacetylene can be prepared in a form with a high electrical conductivity and its conductivity can be further increased by chemical oxidation. Many other polymers with a conjugated carbon main chain have shown the same behavior, e.g., polythiophene and polypyrrole.
- Other conducting fibers that can be used as an information infrastructure component are those doped with inorganic or metallic particles. The conductivity of these fibers is quite high if the fibers are sufficiently doped with metal particles, but this makes the fibers less flexible. Examples of thermoplastic conductive material that can be doped and used as the conductive fibers include nylon, polyester, and vinyl.
- Metallic fibers, such as copper and stainless steel insulated with polyethylene or polyvinyl chloride, can also be used as the conducting fibers in the fabric. With their exceptional current-carrying capacity, copper and stainless steel are more efficient than any doped polymeric fibers. Also, metallic fibers are strong and they resist stretching, neck-down, creep, nicks, and breaks very well. Therefore, metallic fibers of very small diameter, e.g., of the order of 0.1 mm, are sufficient to carry information from the sensors to the monitoring unit. Even with insulation, the fiber diameter is preferably less that 0.3 mm, and hence these fibers are very flexible and can be easily incorporated into the fabric.
- Thus, the preferred electrical conducting materials for the information infrastructure component for the fabric are: (i) doped nylon fibers with conductive inorganic particles and insulated with PVC sheath; (ii) insulated stainless steel fibers; and (iii) thin gauge copper wires with polyethylene sheath. All of these fibers can readily be incorporated into the fabric and can serve to transmit signals through them. An example of an available conducting fiber is X-STATIC® coated nylon with PVC insulation (T66) manufactured by and commercially available from Sauquoit Industries of Scranton, Pa., USA. An example of an available thin copper wire is 24-gauge insulated copper wire from Ack Electronics of Atlanta, Ga., USA.
- Examples of high conductivity yarns suitable for use as the electrical conducting component include BEKINOX® and BEKITEX®, manufactured by and commercially available from Bekaert Corporation, Marietta, Ga., USA, which is a subsidiary of Bekintex NV, Wetteren, Belgium. BEKINOX VN brand yarn is made up of stainless steel fibers and has a resistivity of 60 ohm-meter. The bending rigidity of this yarn is comparable to that of the polyamide high-resistance yarns and can be easily incorporated into the information infrastructure in our present invention. BEKITEX BK50 is a polyester spun yarn with 20% stainless steel fibers, and can be used in the fabric to obtain electrostatic control or electrical conductivity. The conductive fibers can be woven into a fabric in the warp or filling direction or both. Additionally, the fabric/garment with the conductive fiber can be knitted, as opposed to being woven.
- Creating Electrical Junctions in the Fabric
- The disclosed methods relate to forming physical data paths, e.g., realizing “electrical junctions” in the fabric that include the conductive fibers. A robust and cost-effective junction technology is desirable for creating i-Textiles. The disclosed methods and systems relate to a “scalable” junction technology that facilitates the production of the fabric on a large scale (e.g., quantity-wise) and dimension (e.g., on larger surface areas). This junction technology will be referred to herein as “textillography.” Textillography enables the rapid realization of information routing architectures in textile structures. Preferably, the disclosed methods and systems are automated, although the steps can also be performed manually. Automation is preferred for the reproducibility and repeatability of the various steps to create a uniform product on a continuous basis and in large quantities, if desired.
- Electrical junctions between conductive fibers incorporated into the fabric can be achieved by the following operations, some of which are optional:
- 1. Removal of any insulation on the conductive fibers at the zone of the desired junction where selected fibers intersect (also called the “intersection zone”);
- 2. Establishment of the junction between the conductive fibers at their intersection zone;
- 3. Optional application of a conductive paste;
- 4. Optional insulation of the junction point to prevent undesirable short circuits; and
- 5. Optional attachment of a sensor or connector (for sensor or data output).
- The details of the various steps are presently discussed. The steps of the following process are carried out in an automated fashion, either on-line during formation of the fabric, or off-line after the fabric has been formed.
- 1. Removal of Insulation
- In order to make a connection of intersecting conductive fibers, it may be desirable to remove any insulation present at the junction of the two fibers. This can be done by any one of a number of ways. Suitable removal techniques include chemical etching, mechanical removal, and any spot welding technique such as ultrasonic welding, laser light application, or other localized heating technique. Preferably, the junction zone is chemically softened for the effective removal of the insulation, such as a vinyl sheath. The process variables for chemical etching are: (i) the amount of insulation present; (ii) the chemical used in the process; (iii) the concentration of the chemical; (iv) the amount of chemical applied; and (v) duration of chemical application. For instance, acetone has been found to work quite well as a chemical-softening agent for insulation such as a vinyl sheath.
- In some cases, the conductive fibers may not be insulated. In such cases, it would not be necessary to carry out this step.
- 2. Establishment of the Junction Between the Electrical Conductive Fibers at an Intersection Zone
- The next step is to establish a junction between the electrical conductive fibers, as shown in
FIG. 2 at the cross-section between two or more fibers. In one embodiment, the intersection zone is “excited” using an ultrasonic welding device that helps establish the desired contact between the fibers in the fabric. A Pinsonic ultrasonic quilting machine, for example, may be used as the ultrasonic welding device. The Pinsonic machine, manufactured by Morrison Berkshire Inc. of North Adams, Mass., US, eliminates the need for additional adhesive products to be incorporated in the product even when joining materials with different melting points. - Another exemplary
ultrasonic welding device 150 is illustrated inFIG. 5 . Theultrasonic welding device 150 includes ananvil 118 and asonotrode 120. Theanvil 118 is usually made of hardened steel and has a pattern of raised areas machined into it. Disposed between theanvil 118 and thesonotrode 120 is thefabric 110 that includes two intersecting fibers (as shown in greater detail inFIG. 2 ). InFIG. 5 , the fibers are depicted at thejunction point 152 as afiber 154 in the x-direction and afiber 156 in the y-direction. - Energy needed for the ultrasonic welding is applied in the form of mechanical vibrations imposed on the
fibers sonotrode 120 is connected to the part of a joint turned towards it, which causes it to vibrate in a longitudinal direction. The other part of the joint does not move, as this is secured to afixed anvil 118. In order for a relative vibration movement to be incurred between thefibers sonotrode 120 and theanvil 118 feature a specific configuration. - An ultrasonic generator converts the main current into a high frequency AC current with a certain operating frequency. The power requirement depends on the application and can be from, for example, 500 to 10,000 watts (W). The electrical vibrations are changed in a converter unit (not shown) into mechanical vibrations of the same frequency, transferred via a booster (a transformer unit, also not shown) and the
sonotrode 120 onto thefibers - In metallurgical terms, ultrasonic metal welding is classified as a “cold welding process.” Because of intense friction at the welding points the insulating skin is broken open and the two
fibers junction point 152, while at the same time pressure is exerted. These processes trigger the action of atomic-binding forces. The relatively small temperature increase is far below the melting temperature of the fibers, and makes little contribution to the bonding. As there are no structural changes to the fibers, the ultrasonic welding process does not suffer from the adverse effects that such changes can bring. - In other embodiments, the junction between the electrical conductive fibers can be accomplished in a manner other than ultrasonic bonding. For example, chemical bonding, etching, or heating can be used to accomplish the desired junction.
- 3. Optional Application of a Conductive Paste
- The
junction 152 between the conductive yarns can be further established by applying a conductive paste in the intersection zone between the conductive yarns/fibers conductive fibers conductive fibers - 4. Optional Insulation of the Junction Point
- The
junction point 152 may be further re-insulated to prevent it from shorting in the presence of moisture. For example, a polyester/urethane based resin can be used to insulate thejunction point 152. The insulating layer preferably does not chemically react with the optional conductive paste or other components in the fabric. Further, the insulation should adhere well to the paste and offer adequate insulation. - 5. Optional Attachment of a Sensor or Sensor/Data Output Connector
- Additionally, if desired, either a sensor or a sensor/data output connector, such as a T-connector, can be attached at the
junction point 152. The T-connector can connect a sensor, such as a GPS sensor, environmental sensor, an EKG sensor or a microphone to the fabric (FIGS. 3 and 4 ). - Textillography Systems and Methods
- There are primarily two modes in which the textillography technology and above process can be applied to the fabric: on-line (e.g., during production of the fabric) or off-line (e.g., after the fabric has already been woven or knitted), each with its own set of advantages. For instance, the fabric's topology is defined and better controlled while it is being produced, which makes on-line textillography advantageous. The overall fabric production process, though, may be slowed, thus affecting fabric production rate if the textillography process is carried out on-line.
- 1. Off-Line Textillography
-
FIG. 6 depicts thesystem 100 that performs the off-line textillography, and also shows the sequence of operations for one embodiment of the above-described method of creating a junction. Atoptional Step 1, afabric 110 that includes intersecting electrical conductive fibers is disposed between a placing table 112 and amasking device 114 withdispensers 116. Themasking device 114 may be, for example, a mesh. The masking device may be patterned with a via at the intersection of the electrical conductive fibers. As such, themasking device 114 aids in identifying the desired location for the electrically conductive bond between all or select intersecting electrical conductive fibers or conductors. - A solvent is applied at the desired junction point by pressing it through the
dispensers 116 ofmesh 114. As noted previously, the solvent is used to dissolve any insulation around the fibers specifically at the location of thejunction point 152. Thus, if no insulation is present at the desired intersection zone, there is no need to carry out this optional step. - At
Step 2, thefabric 110 is moved to a separate station where it undergoes the establishment of an electrical connection between the fibers. As noted above and shown inFIG. 6 , preferably the junction is established with theultrasonic welding device 150. At this station, thefabric 110 is placed between theanvil 118 and thesonotrode 120. AfterStep 2, thefabric 110 has embossedjunction points 122 according to the profile of theanvil 118. Thus, theultrasonic welding device 114 can also aid in identifying the desired location for the electrically conductive bond between all or select intersecting electrical conductive fibers or conductors. Alternatively, at this station, the junctions also can be established through chemical bonding or laser etching. - At
optional Step 3, a conductive epoxy is placed atjunction points 152 at a separation station by, for example, pressing it through thedispensers 116 ofmesh 114. Additional stations or steps may be provided where thejunction points 152 can be re-insulated, and optional sensors or connectors may be applied. The off-line system 100 may be in the form of a “turn-table” type configuration as shown, or in a straight assembly-line process. The system is preferably designed so that multiple pieces of fabric can be processed in sequence, and/or at the same time to facilitate the processing of long and/or wide lengths of fabric. - 2. On-Line Textillography
-
FIG. 7 depicts thesystem 160 that performs the on-line textillography. Using this on-line system 160, thejunction points 152 are formed during production of thefabric 110. While thesystem 160 is depicted inFIG. 7 for production of a woven fabric, similar principles can be incorporated in the production of a knitted fabric. - With the weaving process of
FIG. 7 , the fibers of thefabric 100, including the electrical conductive fibers, are produced on aloom 162.Harnesses 164 produce awoven fabric 110, after which thefabric 110 passes through abeater roll 166. After passing through thebeater roll 166,junction points 152 in thefabric 110 are formed by one or moretextillography devices 168 that may be disposed, for example, on arail 170. The textillography device desirably operates in real-time during the production process at the desired warp/filling intersection, after thefabric 110 has been formed (e.g., after thebeater 166, as shown). Preferably, therail 170 is movable in both the x-, y-, and/or z-directions and can accommodate multiple textillography devices in order to form more than one junction at one time. Additionally, thesystem 160 may include an array ofrails 170 where the textillography devices can form the junction either at one time, or in sequence. - The junction points 152 are therefore woven into the fabric or
textile 174, after which thefabric 174 is spooled up on a take-up roll 176. It should be noted that when an array ofrails 170 is used to holdtextillography devices 168, the distance between the first rail and the take-up roll 176 may be much longer than that depicted inFIG. 7 . -
FIG. 8 (a) shows an enlarged side view of anexemplary textillography device 168 that may be disposed upon therail 170. Thetextillography device 168 includes an optionalfirst dispenser 178 that deposits the solvent at thejunction point 152. Asonotrode 120 is disposed laterally in relation to the optionalfirst dispenser 178, with theanvil 118 being disposed beneath thejunction point 152 on thefabric 110. An optionalsecond dispenser 180 for dispensing conductive paste is laterally disposed near thesonotrode 120.FIG. 8 (b) shows the top view of the fiber or yarn intersection profile on theanvil 118. While an ultrasonic welding device has specifically been depicted in FIGS. 8(a) and 8(b), similartextillography devices 168 can, alternatively, have a dispenser for chemical bonding, or a laser for laser-etching, in order to establish the electrical junction between two fibers in thefabric 110. -
FIG. 9 illustrates thetextillography device 168 in operation, through three steps. Atoptional Step 1, afabric 110 that includes intersecting electrical conductive fibers is disposed between theanvil 118 and thedispenser 178. Thedispenser 178 dispenses solvent to dissolve insulation around the fibers specifically at the location of thejunction point 152. AtStep 2, thefabric 110 is disposed beneath a separate component of thetextillography device 168, where it undergoes the establishment of an electrical connection between the fibers. As shown inFIGS. 6-8 , the junction may optionally be established by theanvil 118 and thesonotrode 120. Atoptional Step 3, a conductive epoxy is placed on thejunction points 152 viadispenser 180. - It should be emphasized that the above-described embodiments, particularly any “preferred” embodiments, are merely possible examples of implementations, and are merely set forth for a clear understanding of the various principles of the invention. Many variations and modifications may be made to the above-described embodiment(s) without departing substantially from the spirit and principles of the disclosed methods and systems. All such modifications and variations are included in the scope of this disclosure and protected by the following claims.
Claims (31)
1.-14. (canceled)
15. A method of forming a junction or switch between at least two conductors or sections of a conductor, incorporated into a fabric, comprising the steps of:
providing a fabric with at least two overlapping conductors or sections of a conductor incorporated therein;
bringing the conductors or sections into contact with each other at a junction point; and
forming a bond between the conductors or sections at the junction point, further comprising the step of depositing a conductive paste at the junction point of the two conductors,
wherein the step of depositing a conductive paste at the junction point comprises:
placing the fabric incorporating the conductors or sections between a surface and a masking device; and
dispensing a conductive paste through the masking device.
16. (canceled)
17. A system that forms a junction between individually conductive fibers or sections of an individually conductive fiber incorporated into a fabric web, comprising:
an apparatus that brings at least two of the individually conductive fibers or at least two sections of an individually conductive fiber in the fabric web into contact with each other at a junction point and forms a bond between the conductive fibers or sections at the junction point,
wherein the apparatus has components disposed on opposite sides of the fabric web for bringing the conductive fibers or sections into contact with each other and forming the bond at the junction point, at least one of said components being designed for movement across the fabric web to the junction point and for forming the bond at the junction point and being capable of movement in at least two of the X, Y and Z directions along the fabric web and towards and away from the fabric web.
18. The system of claim 17 , wherein the individually conductive fibers or sections of an individually conductive fiber are insulated, the system further comprising a second apparatus that removes insulation from two intersecting individually insulated conductive fibers or sections to expose the individually conductive fibers or sections.
19. The system of claim 17 , wherein the apparatus is chosen from a single textillography device and an array of textillography devices, wherein a textillography device is a device that enables the realization of information routing architectures in textile structures.
20. (canceled)
21. A system that forms a junction between individually conductive fibers or sections of an individually conductive fiber incorporated into a fabric web, comprising:
an apparatus that brings at least two of the individually conductive fibers or at least two sections of an individually conductive fiber in the fabric web into contact with each other at a junction point and forms a bond between the conductive fibers or sections at the junction point,
wherein the system is situated in a fabric manufacturing assembly line, and wherein the system further comprises at least one of:
a rail upon which the apparatus is situated, the apparatus being capable of movement in at least two of the X, Y, and Z directions along the fabric web and towards and away from the fabric web, the rail being disposed to one side of the fabric web, or a turntable to which the first apparatus is connected.
22. The system of claim 17 , wherein the apparatus is chosen from a chemical deposition device, a laser, an ultrasonic welder, and combinations thereof.
23.-24. (canceled)
25. The system of claim 17 , wherein the conductors include a conductive fiber and a connector.
26. The system of claim 17 , wherein the individually conductive fibers or sections of an individually conductive fiber are insulated, the system further comprising at least one of:
means for removing insulation from the fibers or sections to expose the individual conductors; and
means for depositing a conductive paste at the junction point.
27. The system of claim 26 , wherein the conductive paste comprises a material that ensures that bonding occurs between the conductors at the junction point and increases conductivity of the fibers at the junction point.
28. The system of claim 26 , wherein the means for removing the insulation comprises at least one of a chemical etching apparatus, a device for mechanical removal of the insulation, an ultrasonic welder, a laser, a heating apparatus, and combinations thereof.
29. The system of claim 17 , wherein the means for bringing the fibers or sections into contact with each other at the junction point comprises at least one of a chemical, a laser, an ultrasonic welder, and combinations thereof. second apparatus that removes insulation from two intersecting individually insulated conductive fibers or sections to expose the individually conductive fibers or sections.
19. The system of claim 17 , wherein the apparatus is chosen from a single textillography device and an array of textillography devices, wherein a textillography device is a device that enables the realization of information routing architectures in textile structures.
20. (canceled)
21. A system that forms a junction between individually conductive fibers or sections of an individually conductive fiber incorporated into a fabric web, comprising:
an apparatus that brings at least two of the individually conductive fibers or at least two sections of an individually conductive fiber in the fabric web into contact with each other at a junction point and forms a bond between the conductive fibers or sections at the junction point,
wherein the system is situated in a fabric manufacturing assembly line, and wherein the system further comprises at least one of:
a rail upon which the apparatus is situated, the apparatus being capable of movement in at least two of the X, Y and Z directions along the fabric web and towards and away from the fabric web, the rail being disposed to one side of the fabric web, or a turntable to which the first apparatus is connected.
22. The system of claim 17 , wherein the apparatus is chosen from a chemical deposition device, a laser, an ultrasonic welder, and combinations thereof.
23.-24. (canceled)
25. The system of claim 17 , wherein the conductors include a conductive fiber and a connector.
26. The system of claim 17 , wherein the individually conductive fibers or sections of an individually conductive fiber are insulated, the system further comprising at least one of:
means for removing insulation from the fibers or sections to expose the individual conductors; and
means for depositing a conductive paste at the junction point.
27. The system of claim 26 , wherein the conductive paste comprises a material that ensures that bonding occurs between the conductors at the junction point and increases conductivity of the fibers at the junction point.
28. The system of claim 26 , wherein the means for removing the insulation comprises at least one of a chemical etching apparatus, a device for mechanical removal of the insulation, an ultrasonic welder, a laser, a heating apparatus, and combinations thereof.
29. The system of claim 17 , wherein the means for bringing the fibers or sections into contact with each other at the junction point comprises at least one of a chemical, a laser, an ultrasonic welder, and combinations thereof.
30. The system of claim 17 , wherein the means for forming a bond between the conductors at the junction point comprises:
means for exciting the conductors;
means for breaking atomic bonds within each individual conductor; and
means for triggering atomic binding forces between the two conductors.
31. A method for forming a junction or switch between at least two intersecting conductors or sections of a conductor in a fabric web, comprising the steps of:
providing an apparatus for forming an electrically conductive bond between the conductors or sections the apparatus being capable of movement across the fabric web in at least two of the X, Y and Z directions in relation to the fabric web;
providing the apparatus with means to identify the desired location for the electrically conductive bond in the fabric web;
moving the apparatus along the surface of the fabric web to a desired identified location for the bond;
bringing the apparatus into contact with the conductors and bringing the conductors into contact with each other at the desired location; and
forming an electrically conductive bond between the conductors at the desired location to thereby form said junction or switch.
32. The method of claim 31 , wherein the conductors or sections are insulated and including the step of removing the insulation of the conductors or sections at their intersection to form the bond.
33. The method of claim 31 , further including the step of applying a conductive paste to the junction or switch after forming the bond.
34. The system of claim 17 , wherein identifying the junction point and directing movement of the component to the junction point is automated.
35. The system of claim 17 , further comprising means to identify the desired location for the junction point.
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US15/633,102 US20180102619A1 (en) | 2004-01-15 | 2017-06-26 | Method and apparatus to create electrical junctions for information routing in textile structures |
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US15/633,102 Abandoned US20180102619A1 (en) | 2004-01-15 | 2017-06-26 | Method and apparatus to create electrical junctions for information routing in textile structures |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10974274B2 (en) * | 2017-05-29 | 2021-04-13 | Toyota Boshoku Kabushiki Kaisha | Device for impregnating particles into a non-woven fabric |
US20220275543A1 (en) * | 2014-11-21 | 2022-09-01 | Apple Inc. | Weaving Equipment with Strand Modifying Unit |
Families Citing this family (40)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20080202623A1 (en) * | 2007-02-22 | 2008-08-28 | Deangelis Alfred R | Electrocoated conductive fabric |
US8341762B2 (en) * | 2008-03-21 | 2013-01-01 | Alfiero Balzano | Safety vest assembly including a high reliability communication system |
WO2010067283A1 (en) * | 2008-12-12 | 2010-06-17 | Koninklijke Philips Electronics N.V. | Textile carrier for electrically addressing an electronic component in an electronic textile |
US8945328B2 (en) | 2012-09-11 | 2015-02-03 | L.I.F.E. Corporation S.A. | Methods of making garments having stretchable and conductive ink |
US11246213B2 (en) | 2012-09-11 | 2022-02-08 | L.I.F.E. Corporation S.A. | Physiological monitoring garments |
ES2705526T3 (en) | 2012-09-11 | 2019-03-25 | Life Corp Sa | Wearable communication platform |
US8948839B1 (en) | 2013-08-06 | 2015-02-03 | L.I.F.E. Corporation S.A. | Compression garments having stretchable and conductive ink |
US10462898B2 (en) | 2012-09-11 | 2019-10-29 | L.I.F.E. Corporation S.A. | Physiological monitoring garments |
US10159440B2 (en) | 2014-03-10 | 2018-12-25 | L.I.F.E. Corporation S.A. | Physiological monitoring garments |
US10201310B2 (en) | 2012-09-11 | 2019-02-12 | L.I.F.E. Corporation S.A. | Calibration packaging apparatuses for physiological monitoring garments |
US9817440B2 (en) | 2012-09-11 | 2017-11-14 | L.I.F.E. Corporation S.A. | Garments having stretchable and conductive ink |
WO2014207102A1 (en) | 2013-06-26 | 2014-12-31 | Imec | Methods for electrically connecting textile integrated conductive yarns |
EP3091864B8 (en) | 2014-01-06 | 2018-12-19 | L.I.F.E. Corporation S.A. | Systems and methods to automatically determine garment fit |
US9575560B2 (en) | 2014-06-03 | 2017-02-21 | Google Inc. | Radar-based gesture-recognition through a wearable device |
US9921660B2 (en) | 2014-08-07 | 2018-03-20 | Google Llc | Radar-based gesture recognition |
US9811164B2 (en) | 2014-08-07 | 2017-11-07 | Google Inc. | Radar-based gesture sensing and data transmission |
US9588625B2 (en) | 2014-08-15 | 2017-03-07 | Google Inc. | Interactive textiles |
US10268321B2 (en) | 2014-08-15 | 2019-04-23 | Google Llc | Interactive textiles within hard objects |
US11169988B2 (en) | 2014-08-22 | 2021-11-09 | Google Llc | Radar recognition-aided search |
US9778749B2 (en) | 2014-08-22 | 2017-10-03 | Google Inc. | Occluded gesture recognition |
US9600080B2 (en) | 2014-10-02 | 2017-03-21 | Google Inc. | Non-line-of-sight radar-based gesture recognition |
US10016162B1 (en) | 2015-03-23 | 2018-07-10 | Google Llc | In-ear health monitoring |
US9983747B2 (en) | 2015-03-26 | 2018-05-29 | Google Llc | Two-layer interactive textiles |
JP6427279B2 (en) | 2015-04-30 | 2018-11-21 | グーグル エルエルシー | RF based fine motion tracking for gesture tracking and recognition |
KR102011992B1 (en) | 2015-04-30 | 2019-08-19 | 구글 엘엘씨 | Type-Agnostic RF Signal Representations |
CN111880650A (en) | 2015-04-30 | 2020-11-03 | 谷歌有限责任公司 | Gesture recognition based on wide field radar |
US10088908B1 (en) | 2015-05-27 | 2018-10-02 | Google Llc | Gesture detection and interactions |
US9693592B2 (en) | 2015-05-27 | 2017-07-04 | Google Inc. | Attaching electronic components to interactive textiles |
FR3038210A1 (en) * | 2015-07-02 | 2017-01-06 | Eolane Combree | METHOD OF SOLIDARIZING AN ELECTRONIC DEVICE ON A TEXTILE PIECE AND ELECTRICALLY CONNECTING THE ELECTRONIC DEVICE TO AT LEAST ONE ELECTRICAL WIRE INSERTED IN THE TEXTILE PART. |
CN108024721B (en) | 2015-07-20 | 2021-10-26 | 立芙公司 | Flexible fabric strap connector for garment with sensors and electronics |
US10817065B1 (en) | 2015-10-06 | 2020-10-27 | Google Llc | Gesture recognition using multiple antenna |
WO2017079484A1 (en) | 2015-11-04 | 2017-05-11 | Google Inc. | Connectors for connecting electronics embedded in garments to external devices |
WO2017192167A1 (en) | 2016-05-03 | 2017-11-09 | Google Llc | Connecting an electronic component to an interactive textile |
DE112017000189B4 (en) * | 2016-05-13 | 2021-04-29 | Warwick Mills, Inc. | E-fabric and E-fabric garment with integrally connected conductors and embedded devices |
US10175781B2 (en) | 2016-05-16 | 2019-01-08 | Google Llc | Interactive object with multiple electronics modules |
CN109640820A (en) | 2016-07-01 | 2019-04-16 | 立芙公司 | The living things feature recognition carried out by the clothes with multiple sensors |
US20180147669A1 (en) * | 2016-11-29 | 2018-05-31 | Lincoln Global, Inc. | Metal additive system |
US10579150B2 (en) | 2016-12-05 | 2020-03-03 | Google Llc | Concurrent detection of absolute distance and relative movement for sensing action gestures |
EP3531511A1 (en) * | 2018-02-26 | 2019-08-28 | Têxteis Penedo S.A. | Device for assembling and encapsulating lighting components in a textile structure, operating method and uses thereof |
EP4079113A4 (en) * | 2019-12-18 | 2024-03-06 | Myant Inc | Method of manufacturing textile with conductive yarns and integrated electronics |
Citations (74)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1282908A (en) * | 1918-02-14 | 1918-10-29 | Frank E Miller | Fixed selective stethoscope. |
US2579383A (en) * | 1949-07-08 | 1951-12-18 | Felix K Goudsmit | Electrically heated vest |
US2935096A (en) * | 1959-02-16 | 1960-05-03 | Cole William | Woven tubular fabric |
US3020935A (en) * | 1958-02-21 | 1962-02-13 | Frank D Saylor & Son | Method of making plastic reinforced fabric and articles made thereby |
US3184354A (en) * | 1962-02-28 | 1965-05-18 | West Point Mfg Co | Method of splicing multifilament yarns by vibratory treatment |
US3349359A (en) * | 1964-12-18 | 1967-10-24 | Templeton Coal Company | Electrical heating elment |
US3409007A (en) * | 1965-11-26 | 1968-11-05 | Lockheed Aircraft Corp | Body electrode support garment |
US3483861A (en) * | 1966-11-21 | 1969-12-16 | Brian L Tiep | Apparatus for measuring respiration |
US3534727A (en) * | 1967-03-24 | 1970-10-20 | Nasa | Biomedical electrode arrangement |
US3610250A (en) * | 1967-01-10 | 1971-10-05 | Robert I Sarbacher | Electrical contact-carrying garment for muscle stimulation |
US3917146A (en) * | 1975-04-04 | 1975-11-04 | Branson Ultrasonics Corp | Portable vibratory welding apparatus |
US3970116A (en) * | 1973-08-03 | 1976-07-20 | Takada Takezo | Method of weaving a composite tube and web and resulting article |
US4016868A (en) * | 1975-11-25 | 1977-04-12 | Allison Robert D | Garment for impedance plethysmograph use |
US4055166A (en) * | 1975-07-09 | 1977-10-25 | Hugh Walter Simpson | Apparatus for making surface temperature measurements on the human body |
US4129125A (en) * | 1976-12-27 | 1978-12-12 | Camin Research Corp. | Patient monitoring system |
US4174739A (en) * | 1978-02-21 | 1979-11-20 | Fenner America Ltd. | Tubular fabric |
US4299878A (en) * | 1979-12-31 | 1981-11-10 | Textile Products Incorporated | Bias cut, continuous fabric of ceramic or synthetic fibers |
US4308872A (en) * | 1977-04-07 | 1982-01-05 | Respitrace Corporation | Method and apparatus for monitoring respiration |
US4333791A (en) * | 1979-10-27 | 1982-06-08 | Brother Kogyo Kabushiki Kaisha | Ultrasonic seam welding apparatus |
US4501782A (en) * | 1983-11-18 | 1985-02-26 | Mac/Gil Ltd. | Method for bonding webs employing ultrasonic energy |
US4572197A (en) * | 1982-07-01 | 1986-02-25 | The General Hospital Corporation | Body hugging instrumentation vest having radioactive emission detection for ejection fraction |
US4580572A (en) * | 1983-06-01 | 1986-04-08 | Bio-Stimu Trend Corp. | Garment apparatus for delivering or receiving electric impulses |
US4606968A (en) * | 1983-07-25 | 1986-08-19 | Stern And Stern Textiles, Inc. | Electrostatic dissipating fabric |
US4608987A (en) * | 1982-12-03 | 1986-09-02 | Physioventures, Inc. | Apparatus for transmitting ECG data |
US4668545A (en) * | 1984-09-14 | 1987-05-26 | Raychem Corp. | Articles comprising shaped woven fabrics |
US4708149A (en) * | 1985-06-14 | 1987-11-24 | Jens Axelgaard | Electrical stimulation electrode |
US4722354A (en) * | 1985-06-14 | 1988-02-02 | Jens Axelgaard | Electrical stimulation electrode |
US4726076A (en) * | 1985-06-26 | 1988-02-23 | Francoise Douez | Childs garment |
US4727603A (en) * | 1987-03-06 | 1988-03-01 | Howard Rebecca L | Garment with light-conducting fibers |
US4729377A (en) * | 1983-06-01 | 1988-03-08 | Bio-Stimu Trend Corporation | Garment apparatus for delivering or receiving electric impulses |
US4730625A (en) * | 1986-12-15 | 1988-03-15 | Faro Medical Technologies Inc. | Posture monitoring system |
US4784162A (en) * | 1986-09-23 | 1988-11-15 | Advanced Medical Technologies | Portable, multi-channel, physiological data monitoring system |
US4842671A (en) * | 1986-10-23 | 1989-06-27 | Stapla Ultraschall-Technik Gmbh | Apparatus for connecting elongate material such as electrical conductors by means of ultrasonics |
US4846462A (en) * | 1988-04-28 | 1989-07-11 | Regnier Bruce E | Girth monitoring belt |
US4867370A (en) * | 1987-04-09 | 1989-09-19 | American Technology, Inc. | Apparatus and method for ultrasonic welding of wires |
US4889131A (en) * | 1987-12-03 | 1989-12-26 | American Health Products, Inc. | Portable belt monitor of physiological functions and sensors therefor |
US4960118A (en) * | 1989-05-01 | 1990-10-02 | Pennock Bernard E | Method and apparatus for measuring respiratory flow |
US4968369A (en) * | 1988-10-03 | 1990-11-06 | Xerox Corporation | Belt fabrication machine |
US5038782A (en) * | 1986-12-16 | 1991-08-13 | Sam Technology, Inc. | Electrode system for brain wave detection |
US5061331A (en) * | 1990-06-18 | 1991-10-29 | Plasta Fiber Industries, Inc. | Ultrasonic cutting and edge sealing of thermoplastic material |
US5103504A (en) * | 1989-02-15 | 1992-04-14 | Finex Handels-Gmbh | Textile fabric shielding electromagnetic radiation, and clothing made thereof |
US5125412A (en) * | 1990-07-23 | 1992-06-30 | Thornton William E | Musculoskeletal activity monitor |
US5212379A (en) * | 1991-12-06 | 1993-05-18 | Alamed Corporation | Fiber optical monitor for detecting motion based on changes in speckle patterns |
US5224479A (en) * | 1991-06-21 | 1993-07-06 | Topy Enterprises Limited | ECG diagnostic pad |
US5241300A (en) * | 1992-04-24 | 1993-08-31 | Johannes Buschmann | SIDS detection apparatus and methods |
US5256238A (en) * | 1991-01-10 | 1993-10-26 | Gerber Garment Technology, Inc. | Vertically removable and emplacable tool carriage for use with a plurality of work supporting tables |
US5263491A (en) * | 1992-05-12 | 1993-11-23 | William Thornton | Ambulatory metabolic monitor |
US5316830A (en) * | 1989-12-08 | 1994-05-31 | Milliken Research Corporation | Fabric having non-uniform electrical conductivity |
US5331968A (en) * | 1990-10-19 | 1994-07-26 | Gerald Williams | Inductive plethysmographic transducers and electronic circuitry therefor |
US5348008A (en) * | 1991-11-25 | 1994-09-20 | Somnus Corporation | Cardiorespiratory alert system |
US5374283A (en) * | 1993-12-01 | 1994-12-20 | Flick; A. Bart | Electrical therapeutic apparatus |
US5375610A (en) * | 1992-04-28 | 1994-12-27 | University Of New Hampshire | Apparatus for the functional assessment of human activity |
US5415204A (en) * | 1991-05-27 | 1995-05-16 | Kitamura; Atsushi | Method of manufacturing large-diameter seamless circular woven fabrics |
US5436444A (en) * | 1991-12-06 | 1995-07-25 | Alamed Corporation | Multimode optical fiber motion monitor with audible output |
US5450845A (en) * | 1993-01-11 | 1995-09-19 | Axelgaard; Jens | Medical electrode system |
US5454376A (en) * | 1993-08-16 | 1995-10-03 | Stephens; David L. | Breathing monitor articles of wearing apparel |
US5464488A (en) * | 1994-12-22 | 1995-11-07 | Albany International Corp. | Method of seaming plastic fabrics |
US5584122A (en) * | 1994-04-01 | 1996-12-17 | Yazaki Corporation | Waterproof connection method for covered wire with resin encapsulation |
US5592977A (en) * | 1992-12-15 | 1997-01-14 | Kikuchi Web Tech Co., Ltd. | Multi-layered woven belt with rope shaped portion |
US5610528A (en) * | 1995-06-28 | 1997-03-11 | International Business Machines Corporation | Capacitive bend sensor |
US5731063A (en) * | 1995-06-06 | 1998-03-24 | Appleton Mills | Papermaking felt and substrate |
US5925202A (en) * | 1996-06-04 | 1999-07-20 | Yazaki Corporation | Covered wire connection method and structure |
US6001442A (en) * | 1996-11-08 | 1999-12-14 | Milliken & Company | Ultrasonically spliced roll towel |
US6019271A (en) * | 1997-07-11 | 2000-02-01 | Ford Motor Company | Method for ultrasonic bonding flexible circuits |
US6070777A (en) * | 1996-03-22 | 2000-06-06 | American Technology, Inc. | Automated, energy efficient ultrasonic welder |
US6336803B1 (en) * | 1998-03-25 | 2002-01-08 | Eduard Kusters Maschinenfabrik Gmbh & Co. Kg | Apparatus for treating a textile web with ultrasound |
US6381482B1 (en) * | 1998-05-13 | 2002-04-30 | Georgia Tech Research Corp. | Fabric or garment with integrated flexible information infrastructure |
US20020074383A1 (en) * | 2000-12-20 | 2002-06-20 | Yazaki Corporation | Wire fixing jig |
US20020100308A1 (en) * | 2000-08-28 | 2002-08-01 | Konrad Wegener | Laser stretch-forming processing apparatus for sheet metal |
US6463349B2 (en) * | 2000-03-23 | 2002-10-08 | Solidica, Inc. | Ultrasonic object consolidation system and method |
US6609648B2 (en) * | 2001-03-16 | 2003-08-26 | Yazaki Corporation | Ultrasonic bonding method of electric wires |
US6682620B2 (en) * | 2001-05-16 | 2004-01-27 | The Goodyear Tire & Rubber Company | Method for tying rolls of fabric |
US6717100B2 (en) * | 1999-10-22 | 2004-04-06 | Medtronic, Inc. | Apparatus and method for laser welding of ribbons |
US6935551B2 (en) * | 2001-03-16 | 2005-08-30 | Yazaki Corporation | Ultrasonic bonding method of coated electric wires and ultrasonic bonding apparatus using same |
Family Cites Families (50)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2049575A (en) * | 1935-04-16 | 1936-08-04 | Lindsay Wire Weaving Co | Seam for woven wire fabric and method of making same |
US2157304A (en) * | 1937-12-30 | 1939-05-09 | Charles Hipsh | Loom |
US2167193A (en) * | 1938-02-07 | 1939-07-25 | Michigan State | Loom |
FR987078A (en) | 1949-03-29 | 1951-08-08 | Noumita | Knit underwear with enamel lining |
US3061907A (en) * | 1959-07-09 | 1962-11-06 | Chicopee Mfg Corp | Method of forming a fabric |
US3136650A (en) * | 1961-11-01 | 1964-06-09 | Gen Electric | Method for coating a surface of an article with a resin layer |
US3321558A (en) * | 1962-10-08 | 1967-05-23 | Cavitron Ultrasonics Inc | Ultrasonic heating method |
US3580296A (en) * | 1968-07-11 | 1971-05-25 | Monsanto Co | Articles woven from nonextensible materials |
US4274251A (en) * | 1973-01-16 | 1981-06-23 | Hercules Incorporated | Yarn structure having main filaments and tie filaments |
ES190979Y (en) | 1973-04-16 | 1974-12-01 | Targarona Gusils | ELASTICALLY EXTENSIBLE TUBULAR NET IN DIAMETER DIRECTION. |
US4122871A (en) * | 1976-07-07 | 1978-10-31 | Mcginley Thomas F | Method of weaving and apparatus therefor |
US4388951A (en) * | 1979-09-27 | 1983-06-21 | Bentley Weaving Machinery Limited | Weaving looms having rotary shed forming drums and beat up mechanisms therefor |
US4394208A (en) * | 1981-08-06 | 1983-07-19 | Burlington Industries, Inc. | Ultrasonic bonding |
US4838964A (en) * | 1987-03-20 | 1989-06-13 | Xerox Corporation | Process for preparing belts |
US5759044A (en) * | 1990-02-22 | 1998-06-02 | Redmond Productions | Methods and apparatus for generating and processing synthetic and absolute real time environments |
GB9123638D0 (en) * | 1991-11-07 | 1992-01-02 | Magill Alan R | Apparel & fabric & devices suitable for health monitoring applications |
US5400012A (en) * | 1993-04-12 | 1995-03-21 | Lifetek, Inc. | Breathing monitor |
US5843554A (en) * | 1994-02-18 | 1998-12-01 | Katman, Inc. | Multi-layer covering articles |
AUPM964094A0 (en) * | 1994-11-24 | 1994-12-15 | Sullivan, C.E. | Biophysical foetal monitor |
US5624736A (en) * | 1995-05-12 | 1997-04-29 | Milliken Research Corporation | Patterned conductive textiles |
US5636378A (en) * | 1995-06-08 | 1997-06-10 | Griffith; Quentin L. | Impact sensing vest |
FR2737651B1 (en) | 1995-08-07 | 1997-10-17 | Szczygiel Joseph | DEVICE FOR MEDICAL SURVEILLANCE OF A HUMAN OR ANIMAL BEING |
US5701370A (en) * | 1995-08-11 | 1997-12-23 | Lockheed Martin Energy Systems, Inc. | Optical fiber sensors for monitoring joint articulation and chest expansion of a human body |
US5742939A (en) * | 1995-08-24 | 1998-04-28 | Williams; Stan | Play costume with detachable pads |
US6151528A (en) * | 1996-02-07 | 2000-11-21 | Innuendo S.R.L. | Method and device for application of endermic electrotherapeutic treatments to a human body |
US5694645A (en) * | 1996-04-02 | 1997-12-09 | Triplette; Walter W. | Fencing garments made from stretchable, electrically conductive fabric |
US5766236A (en) * | 1996-04-19 | 1998-06-16 | Detty; Gerald D. | Electrical stimulation support braces |
US6102856A (en) * | 1997-02-12 | 2000-08-15 | Groff; Clarence P | Wearable vital sign monitoring system |
ATE477746T1 (en) * | 1997-03-17 | 2010-09-15 | Adidas Ag | INFORMATION FEEDBACK SYSTEM FOR PHYSIOLOGICAL SIGNALS |
US5963891A (en) * | 1997-04-24 | 1999-10-05 | Modern Cartoons, Ltd. | System for tracking body movements in a virtual reality system |
US5913830A (en) * | 1997-08-20 | 1999-06-22 | Respironics, Inc. | Respiratory inductive plethysmography sensor |
CN1116458C (en) * | 1997-09-22 | 2003-07-30 | 佐治亚科技研究公司 | Full-fashioned weaving process for production of a woven garment with intelligent capability |
US6687523B1 (en) * | 1997-09-22 | 2004-02-03 | Georgia Tech Research Corp. | Fabric or garment with integrated flexible information infrastructure for monitoring vital signs of infants |
US6210771B1 (en) * | 1997-09-24 | 2001-04-03 | Massachusetts Institute Of Technology | Electrically active textiles and articles made therefrom |
US6106481A (en) * | 1997-10-01 | 2000-08-22 | Boston Medical Technologies, Inc. | Method and apparatus for enhancing patient compliance during inspiration measurements |
US5802611A (en) * | 1997-11-18 | 1998-09-08 | Mckenzie; Melody | Releasable clothing with temperature sensor for bedridden patients |
US5944669A (en) * | 1997-11-20 | 1999-08-31 | Lifecor, Inc. | Apparatus and method for sensing cardiac function |
US6014773A (en) * | 1998-12-10 | 2000-01-18 | Banks; David L. | Monitored static electricity dissipation garment |
US5928157A (en) * | 1998-01-22 | 1999-07-27 | O'dwyer; Joseph E. | Apnea detection monitor with remote receiver |
US8105690B2 (en) * | 1998-03-03 | 2012-01-31 | Ppg Industries Ohio, Inc | Fiber product coated with particles to adjust the friction of the coating and the interfilament bonding |
US5906004A (en) * | 1998-04-29 | 1999-05-25 | Motorola, Inc. | Textile fabric with integrated electrically conductive fibers and clothing fabricated thereof |
US6080690A (en) * | 1998-04-29 | 2000-06-27 | Motorola, Inc. | Textile fabric with integrated sensing device and clothing fabricated thereof |
US6315009B1 (en) * | 1998-05-13 | 2001-11-13 | Georgia Tech Research Corp. | Full-fashioned garment with sleeves having intelligence capability |
DE29813614U1 (en) | 1998-07-30 | 1998-10-08 | Schuetter Evelyn | Onesie for premature babies |
US6474367B1 (en) * | 1998-09-21 | 2002-11-05 | Georgia Tech Research Corp. | Full-fashioned garment in a fabric and optionally having intelligence capability |
EP1224848A1 (en) * | 1999-10-18 | 2002-07-24 | Massachusetts Institute Of Technology | Flexible electronic circuitry and method of making same |
US6324053B1 (en) * | 1999-11-09 | 2001-11-27 | International Business Machines Corporation | Wearable data processing system and apparel |
DE10161527A1 (en) * | 2001-12-14 | 2003-07-03 | Infineon Technologies Ag | Construction and connection technology in textile structures |
DE10325883A1 (en) * | 2003-06-06 | 2004-12-30 | Infineon Technologies Ag | Process for contacting conductive fibers |
US6882897B1 (en) * | 2004-01-05 | 2005-04-19 | Dennis S. Fernandez | Reconfigurable garment definition and production method |
-
2004
- 2004-01-15 US US10/759,691 patent/US7299964B2/en not_active Expired - Fee Related
-
2005
- 2005-01-12 WO PCT/US2005/000929 patent/WO2005067693A2/en active Application Filing
-
2007
- 2007-10-19 US US11/875,010 patent/US20080083481A1/en not_active Abandoned
-
2017
- 2017-06-26 US US15/633,102 patent/US20180102619A1/en not_active Abandoned
Patent Citations (77)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1282908A (en) * | 1918-02-14 | 1918-10-29 | Frank E Miller | Fixed selective stethoscope. |
US2579383A (en) * | 1949-07-08 | 1951-12-18 | Felix K Goudsmit | Electrically heated vest |
US3020935A (en) * | 1958-02-21 | 1962-02-13 | Frank D Saylor & Son | Method of making plastic reinforced fabric and articles made thereby |
US2935096A (en) * | 1959-02-16 | 1960-05-03 | Cole William | Woven tubular fabric |
US3184354A (en) * | 1962-02-28 | 1965-05-18 | West Point Mfg Co | Method of splicing multifilament yarns by vibratory treatment |
US3349359A (en) * | 1964-12-18 | 1967-10-24 | Templeton Coal Company | Electrical heating elment |
US3409007A (en) * | 1965-11-26 | 1968-11-05 | Lockheed Aircraft Corp | Body electrode support garment |
US3483861A (en) * | 1966-11-21 | 1969-12-16 | Brian L Tiep | Apparatus for measuring respiration |
US3610250A (en) * | 1967-01-10 | 1971-10-05 | Robert I Sarbacher | Electrical contact-carrying garment for muscle stimulation |
US3534727A (en) * | 1967-03-24 | 1970-10-20 | Nasa | Biomedical electrode arrangement |
US3970116A (en) * | 1973-08-03 | 1976-07-20 | Takada Takezo | Method of weaving a composite tube and web and resulting article |
US3917146A (en) * | 1975-04-04 | 1975-11-04 | Branson Ultrasonics Corp | Portable vibratory welding apparatus |
US4055166A (en) * | 1975-07-09 | 1977-10-25 | Hugh Walter Simpson | Apparatus for making surface temperature measurements on the human body |
US4016868A (en) * | 1975-11-25 | 1977-04-12 | Allison Robert D | Garment for impedance plethysmograph use |
US4129125A (en) * | 1976-12-27 | 1978-12-12 | Camin Research Corp. | Patient monitoring system |
US4815473A (en) * | 1977-04-07 | 1989-03-28 | Respitrace Corporation | Method and apparatus for monitoring respiration |
US4308872A (en) * | 1977-04-07 | 1982-01-05 | Respitrace Corporation | Method and apparatus for monitoring respiration |
US4174739A (en) * | 1978-02-21 | 1979-11-20 | Fenner America Ltd. | Tubular fabric |
US4333791A (en) * | 1979-10-27 | 1982-06-08 | Brother Kogyo Kabushiki Kaisha | Ultrasonic seam welding apparatus |
US4299878A (en) * | 1979-12-31 | 1981-11-10 | Textile Products Incorporated | Bias cut, continuous fabric of ceramic or synthetic fibers |
US4572197A (en) * | 1982-07-01 | 1986-02-25 | The General Hospital Corporation | Body hugging instrumentation vest having radioactive emission detection for ejection fraction |
US4608987A (en) * | 1982-12-03 | 1986-09-02 | Physioventures, Inc. | Apparatus for transmitting ECG data |
US4729377A (en) * | 1983-06-01 | 1988-03-08 | Bio-Stimu Trend Corporation | Garment apparatus for delivering or receiving electric impulses |
US4580572A (en) * | 1983-06-01 | 1986-04-08 | Bio-Stimu Trend Corp. | Garment apparatus for delivering or receiving electric impulses |
US4606968A (en) * | 1983-07-25 | 1986-08-19 | Stern And Stern Textiles, Inc. | Electrostatic dissipating fabric |
US4501782A (en) * | 1983-11-18 | 1985-02-26 | Mac/Gil Ltd. | Method for bonding webs employing ultrasonic energy |
US4668545A (en) * | 1984-09-14 | 1987-05-26 | Raychem Corp. | Articles comprising shaped woven fabrics |
US4708149A (en) * | 1985-06-14 | 1987-11-24 | Jens Axelgaard | Electrical stimulation electrode |
US4722354A (en) * | 1985-06-14 | 1988-02-02 | Jens Axelgaard | Electrical stimulation electrode |
US4726076A (en) * | 1985-06-26 | 1988-02-23 | Francoise Douez | Childs garment |
US4784162A (en) * | 1986-09-23 | 1988-11-15 | Advanced Medical Technologies | Portable, multi-channel, physiological data monitoring system |
US4842671A (en) * | 1986-10-23 | 1989-06-27 | Stapla Ultraschall-Technik Gmbh | Apparatus for connecting elongate material such as electrical conductors by means of ultrasonics |
US4730625A (en) * | 1986-12-15 | 1988-03-15 | Faro Medical Technologies Inc. | Posture monitoring system |
US5038782A (en) * | 1986-12-16 | 1991-08-13 | Sam Technology, Inc. | Electrode system for brain wave detection |
US4727603A (en) * | 1987-03-06 | 1988-03-01 | Howard Rebecca L | Garment with light-conducting fibers |
US4867370A (en) * | 1987-04-09 | 1989-09-19 | American Technology, Inc. | Apparatus and method for ultrasonic welding of wires |
US4889131A (en) * | 1987-12-03 | 1989-12-26 | American Health Products, Inc. | Portable belt monitor of physiological functions and sensors therefor |
US4846462A (en) * | 1988-04-28 | 1989-07-11 | Regnier Bruce E | Girth monitoring belt |
US4968369A (en) * | 1988-10-03 | 1990-11-06 | Xerox Corporation | Belt fabrication machine |
US5103504A (en) * | 1989-02-15 | 1992-04-14 | Finex Handels-Gmbh | Textile fabric shielding electromagnetic radiation, and clothing made thereof |
US4960118A (en) * | 1989-05-01 | 1990-10-02 | Pennock Bernard E | Method and apparatus for measuring respiratory flow |
US5316830A (en) * | 1989-12-08 | 1994-05-31 | Milliken Research Corporation | Fabric having non-uniform electrical conductivity |
US5061331A (en) * | 1990-06-18 | 1991-10-29 | Plasta Fiber Industries, Inc. | Ultrasonic cutting and edge sealing of thermoplastic material |
US5125412A (en) * | 1990-07-23 | 1992-06-30 | Thornton William E | Musculoskeletal activity monitor |
US5331968A (en) * | 1990-10-19 | 1994-07-26 | Gerald Williams | Inductive plethysmographic transducers and electronic circuitry therefor |
US5256238A (en) * | 1991-01-10 | 1993-10-26 | Gerber Garment Technology, Inc. | Vertically removable and emplacable tool carriage for use with a plurality of work supporting tables |
US5415204A (en) * | 1991-05-27 | 1995-05-16 | Kitamura; Atsushi | Method of manufacturing large-diameter seamless circular woven fabrics |
US5224479A (en) * | 1991-06-21 | 1993-07-06 | Topy Enterprises Limited | ECG diagnostic pad |
US5348008A (en) * | 1991-11-25 | 1994-09-20 | Somnus Corporation | Cardiorespiratory alert system |
US5353793A (en) * | 1991-11-25 | 1994-10-11 | Oishi-Kogyo Company | Sensor apparatus |
US5212379A (en) * | 1991-12-06 | 1993-05-18 | Alamed Corporation | Fiber optical monitor for detecting motion based on changes in speckle patterns |
US5436444A (en) * | 1991-12-06 | 1995-07-25 | Alamed Corporation | Multimode optical fiber motion monitor with audible output |
US5241300A (en) * | 1992-04-24 | 1993-08-31 | Johannes Buschmann | SIDS detection apparatus and methods |
US5241300B1 (en) * | 1992-04-24 | 1995-10-31 | Johannes Buschmann | Sids detection apparatus and methods |
US5375610A (en) * | 1992-04-28 | 1994-12-27 | University Of New Hampshire | Apparatus for the functional assessment of human activity |
US5263491A (en) * | 1992-05-12 | 1993-11-23 | William Thornton | Ambulatory metabolic monitor |
US5592977A (en) * | 1992-12-15 | 1997-01-14 | Kikuchi Web Tech Co., Ltd. | Multi-layered woven belt with rope shaped portion |
US5450845A (en) * | 1993-01-11 | 1995-09-19 | Axelgaard; Jens | Medical electrode system |
US5454376A (en) * | 1993-08-16 | 1995-10-03 | Stephens; David L. | Breathing monitor articles of wearing apparel |
US5374283A (en) * | 1993-12-01 | 1994-12-20 | Flick; A. Bart | Electrical therapeutic apparatus |
US5584122A (en) * | 1994-04-01 | 1996-12-17 | Yazaki Corporation | Waterproof connection method for covered wire with resin encapsulation |
US5464488A (en) * | 1994-12-22 | 1995-11-07 | Albany International Corp. | Method of seaming plastic fabrics |
US5731063A (en) * | 1995-06-06 | 1998-03-24 | Appleton Mills | Papermaking felt and substrate |
US5610528A (en) * | 1995-06-28 | 1997-03-11 | International Business Machines Corporation | Capacitive bend sensor |
US6070777A (en) * | 1996-03-22 | 2000-06-06 | American Technology, Inc. | Automated, energy efficient ultrasonic welder |
US5925202A (en) * | 1996-06-04 | 1999-07-20 | Yazaki Corporation | Covered wire connection method and structure |
US6001442A (en) * | 1996-11-08 | 1999-12-14 | Milliken & Company | Ultrasonically spliced roll towel |
US6019271A (en) * | 1997-07-11 | 2000-02-01 | Ford Motor Company | Method for ultrasonic bonding flexible circuits |
US6336803B1 (en) * | 1998-03-25 | 2002-01-08 | Eduard Kusters Maschinenfabrik Gmbh & Co. Kg | Apparatus for treating a textile web with ultrasound |
US6381482B1 (en) * | 1998-05-13 | 2002-04-30 | Georgia Tech Research Corp. | Fabric or garment with integrated flexible information infrastructure |
US6717100B2 (en) * | 1999-10-22 | 2004-04-06 | Medtronic, Inc. | Apparatus and method for laser welding of ribbons |
US6463349B2 (en) * | 2000-03-23 | 2002-10-08 | Solidica, Inc. | Ultrasonic object consolidation system and method |
US20020100308A1 (en) * | 2000-08-28 | 2002-08-01 | Konrad Wegener | Laser stretch-forming processing apparatus for sheet metal |
US20020074383A1 (en) * | 2000-12-20 | 2002-06-20 | Yazaki Corporation | Wire fixing jig |
US6609648B2 (en) * | 2001-03-16 | 2003-08-26 | Yazaki Corporation | Ultrasonic bonding method of electric wires |
US6935551B2 (en) * | 2001-03-16 | 2005-08-30 | Yazaki Corporation | Ultrasonic bonding method of coated electric wires and ultrasonic bonding apparatus using same |
US6682620B2 (en) * | 2001-05-16 | 2004-01-27 | The Goodyear Tire & Rubber Company | Method for tying rolls of fabric |
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---|---|---|---|---|
US20220275543A1 (en) * | 2014-11-21 | 2022-09-01 | Apple Inc. | Weaving Equipment with Strand Modifying Unit |
US10974274B2 (en) * | 2017-05-29 | 2021-04-13 | Toyota Boshoku Kabushiki Kaisha | Device for impregnating particles into a non-woven fabric |
Also Published As
Publication number | Publication date |
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WO2005067693A3 (en) | 2006-11-09 |
US20050156015A1 (en) | 2005-07-21 |
WO2005067693A2 (en) | 2005-07-28 |
US7299964B2 (en) | 2007-11-27 |
US20180102619A1 (en) | 2018-04-12 |
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