WO2008034593A2 - Hygieneartikel oder op-abdeckungsartikel oder op- bekleidungsartikel zum einmaligen gebrauch - Google Patents
Hygieneartikel oder op-abdeckungsartikel oder op- bekleidungsartikel zum einmaligen gebrauch Download PDFInfo
- Publication number
- WO2008034593A2 WO2008034593A2 PCT/EP2007/008134 EP2007008134W WO2008034593A2 WO 2008034593 A2 WO2008034593 A2 WO 2008034593A2 EP 2007008134 W EP2007008134 W EP 2007008134W WO 2008034593 A2 WO2008034593 A2 WO 2008034593A2
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- WO
- WIPO (PCT)
- Prior art keywords
- ultrasonic welding
- article according
- pattern
- welding points
- article
- Prior art date
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/05—Particular design of joint configurations
- B29C66/20—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines
- B29C66/24—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight
- B29C66/244—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight said joint lines being non-straight, e.g. forming non-closed contours
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/45—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the shape
- A61F13/47—Sanitary towels, incontinence pads or napkins
- A61F13/475—Sanitary towels, incontinence pads or napkins characterised by edge leakage prevention means
- A61F13/4751—Sanitary towels, incontinence pads or napkins characterised by edge leakage prevention means the means preventing fluid flow in a transversal direction
- A61F13/4752—Sanitary towels, incontinence pads or napkins characterised by edge leakage prevention means the means preventing fluid flow in a transversal direction the means being an upstanding barrier
- A61F13/4753—Sanitary towels, incontinence pads or napkins characterised by edge leakage prevention means the means preventing fluid flow in a transversal direction the means being an upstanding barrier the barrier being not integral with the topsheet or backsheet
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/51—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the outer layers
- A61F13/515—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the outer layers characterised by the interconnection of the topsheet and the backsheet
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/53—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium
- A61F13/539—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium characterised by the connection of the absorbent layers with each other or with the outer layers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
- B29C65/08—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using ultrasonic vibrations
- B29C65/083—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using ultrasonic vibrations using a rotary sonotrode or a rotary anvil
- B29C65/086—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using ultrasonic vibrations using a rotary sonotrode or a rotary anvil using a rotary anvil
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/05—Particular design of joint configurations
- B29C66/20—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines
- B29C66/21—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being formed by a single dot or dash or by several dots or dashes, i.e. spot joining or spot welding
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
- B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
- B29C66/43—Joining a relatively small portion of the surface of said articles
- B29C66/433—Casing-in, i.e. enclosing an element between two sheets by an outlined seam
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
- B29C66/72—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
- B29C66/729—Textile or other fibrous material made from plastics
- B29C66/7294—Non woven mats, e.g. felt
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/80—General aspects of machine operations or constructions and parts thereof
- B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
- B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
- B29C66/8141—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
- B29C66/81433—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined being toothed, i.e. comprising several teeth or pins, or being patterned
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/80—General aspects of machine operations or constructions and parts thereof
- B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
- B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
- B29C66/8145—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the constructional aspects of the pressing elements, e.g. of the welding jaws or clamps
- B29C66/81463—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the constructional aspects of the pressing elements, e.g. of the welding jaws or clamps comprising a plurality of single pressing elements, e.g. a plurality of sonotrodes, or comprising a plurality of single counter-pressing elements, e.g. a plurality of anvils, said plurality of said single elements being suitable for making a single joint
- B29C66/81469—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the constructional aspects of the pressing elements, e.g. of the welding jaws or clamps comprising a plurality of single pressing elements, e.g. a plurality of sonotrodes, or comprising a plurality of single counter-pressing elements, e.g. a plurality of anvils, said plurality of said single elements being suitable for making a single joint one placed next to the other in a single line transverse to the feed direction, e.g. shoulder to shoulder sonotrodes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/80—General aspects of machine operations or constructions and parts thereof
- B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
- B29C66/834—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools moving with the parts to be joined
- B29C66/8341—Roller, cylinder or drum types; Band or belt types; Ball types
- B29C66/83411—Roller, cylinder or drum types
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/05—Particular design of joint configurations
- B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
- B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
- B29C66/112—Single lapped joints
- B29C66/1122—Single lap to lap joints, i.e. overlap joints
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
- B29C66/72—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
- B29C66/721—Fibre-reinforced materials
- B29C66/7214—Fibre-reinforced materials characterised by the length of the fibres
- B29C66/72143—Fibres of discontinuous lengths
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/80—General aspects of machine operations or constructions and parts thereof
- B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
- B29C66/834—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools moving with the parts to be joined
- B29C66/8351—Jaws mounted on rollers, cylinders, drums, bands, belts or chains; Flying jaws
- B29C66/83511—Jaws mounted on rollers, cylinders, drums, bands, belts or chains; Flying jaws jaws mounted on rollers, cylinders or drums
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/48—Wearing apparel
- B29L2031/4871—Underwear
- B29L2031/4878—Diapers, napkins
Definitions
- the invention relates to a hygiene article or surgical drape article or surgical article for single use, such as incontinence diaper, incontinence, surgical drape or surgical gown, with a nonwoven composite, wherein the nonwoven composite has at least one first nonwoven fabric component and another nonwoven or film component, and wherein the first nonwoven component at the further nonwoven fabric or film component is at least partially defined by a joining pattern comprising discrete ultrasonic welds to form the nonwoven composite, and wherein the joining pattern extends in a first direction and perpendicular thereto in a second direction and the extent in the first direction is greater than in the second direction, and wherein the joining pattern is at least partially not rectilinearly.
- lateral in-use barrier means comprising a nonwoven component which is longitudinally bonded to another nonwoven or film component of the sanitary article by ultrasonic bonding or fixed by gluing.
- a joining pattern may be discrete Ultrasonic welding points comprises, in a continuous, so endless manufacturing machine for nonwoven fabric articles of the aforementioned type be realized in that a rolling in the machine direction contour roller and an offset in oscillations of the ultrasonic range as a sonotrode designated anvil is used.
- the contour roller and sonotrode form a gap through which the weldable components to be joined are produced during continuous production.
- the vibration energy By transferring the vibration energy to the raised areas of the contour roller then the welding of the nonwoven fabric or film components.
- the strength of the weld can be regulated by the distance between the sonotrode and the contour roller and by the control of the oscillation of the sonotrode.
- Machine direction is not or only slightly varied, so if it does not vary, for example, in the circumferential direction of the contour roller and, for example, concentric stamping lines or embossing points on the contour roller, so the above-mentioned problem does not occur because then the welded surface does not change rapidly in the machine direction.
- the joining pattern is inclined toward the machine direction or has inclined sections for this purpose, the proportion of the welded surface in the machine direction changes very greatly, and the above-mentioned problems.
- the joining pattern has arcuate areas of narrow curvature to the machine direction, there is the problem of process-reliable welding of the nonwoven components. If this problem is not mastered, it comes to unwelded areas or damage to the nonwoven or film components by welding. In both cases, the utility of the article to be manufactured is at risk. Extremely short control cycles with regard to the control of the
- Ultrasonic welding device can also lead to overdriving the device and thus often to direct contact of contour roller and sonotrode. However, this leads to damage to the device, which significantly reduces their life. Sonotrode and contour roller require then due to high wear by direct contact of the two machine components of the frequent renewal.
- the present invention has for its object to conceive a hygiene article or an OP cover article or surgical clothing article of the type described above, in which the previously described problems do not occur, however, a varying in the machine direction joining pattern of discrete ultrasonic welding is to be produced. It should therefore be possible, for example, to fix upstanding cuff element according to an arcuately oscillating to the machine direction joining pattern or generally weldable as Flachmateriai supplied nonwoven or film components of the aforementioned article to each other, which should be able to deviate from the exact straight in the machine direction extending addition.
- damage to the components to be welded together during the welding process and a partially defective welding of the components should be excluded.
- damage to the Ultrasonic welding device can be avoided and a long service life can also be ensured in conjunction with high-speed production machines.
- the index of the fluctuation of the area covered by the ultrasonic welding sites is at most 40%.
- the object is achieved by designing the joining pattern of the ultrasonic welding points in such a way that in the machine direction the area covered by the welding does not vary so much that the above-described problems occur. This can be achieved, for example, by varying and corresponding arrangement of the number of ultrasonic welding sites per area, ie also by appropriate selection of the distance of the ultrasonic welding points from one another and / or by varying the respective area of the ultrasonic welding points.
- the said index of the fluctuation of the area covered by the ultrasonic welding points is determined as follows:
- the claimed article is considered to be divided in the first direction into longitudinal sections 5 mm wide.
- these longitudinal sections extend over 5 mm in the first direction, which also corresponds to the machine direction, and perpendicular thereto in the second direction, which corresponds to the product transverse direction.
- Each of these 5 mm longitudinally extending sections comprises a number of ultrasonic welding points, each of which forms a welded area portion. From each 5 mm section, the welded area A x can be determined (sum of the areas of the individual ultrasonic welding points in one)
- an average value A of the area Ai detected by the ultrasonic welding points of each section can be determined.
- an article 820 mm long in the first direction can be placed in 164 such 5 mm Divide sections.
- the welded area Ai can be determined, and from these 164 values Ai, the arithmetic mean A of the welded area of the 5 mm sections can then be determined. From this a value s can be determined according to the following formula:
- the sum of the deviation squares of the Ai of the individual 5 mm sections from the average A of the welding surfaces of the 5 mm sections is formed and divided by (N-I), and the square root is drawn from the result. From this, the aforementioned index I (in%) of the variation of the area covered by the ultrasonic welding points is defined as follows:
- Ultrasonic welding detected area is at most 35%, in particular at most 30% and more particularly at most 25% (claim 2).
- the present invention proves to be particularly advantageous in an article in which the nonwoven composite comprises on both sides at least one cuff element which forms an outlet barrier and extends substantially in the first direction and projects at least in sections (claim 3).
- a cuff element is a side barrier means formed from a flat material, which usually stands out from the underlay by elastification, in particular in the direction of the user's body, and thus causes a leakage barrier, usually towards the sides of the article ,
- this cuff element is joined to further (chassis) nonwoven fabric or film components of the article by means of an inventive joining pattern of ultrasonic welding points.
- the cuff element thus advantageously comprises the first nonwoven component (claim 4).
- the claimed article when the claimed article is designed as a hygiene article for single use, it proves to be advantageous if the article has an at least partially liquid-permeable topsheet, an at least partially liquid-tight backsheet and a body core absorbing absorbent memory core (claim 5).
- the further nonwoven fabric or film component may advantageously be the topsheet or the backsheet, so that a preferably additionally provided cuff element with its first nonwoven component is defined by the inventive joining pattern of ultrasonic welds on the topsheet or backsheet (claim 6).
- the joining pattern comprises a first part of the pattern, which at least partially a Cocksockel forms, so an area along which the cuff is attached to the further nonwoven fabric component or film component (claim 7). This then forms as intended a pivot line along which the cuff rises from the intended use of a base plane away.
- the cuff base formed by the said first partial pattern in some regions may additionally be formed or delimited by a second substantially straight-line and, in particular, substantially parallel to the first direction, partial pattern (claim 8).
- substantially rectilinear part-sub-pattern is used here and below to refer to an extent in the second direction of a maximum of 6 mm over a length of 200 mm in the first direction.
- the cuff base is at least partially formed by the first part of the pattern, the second part of the pattern and a third non-rectilinear part-part pattern (claim 9).
- the second part-pattern is preferably arranged between the first and the third part-pattern in the first direction (claim 10).
- the invention here opens up the possibility of the cuff elements in a front and rear region of the article in the transverse direction relatively far outside to arrange and then in the direction of the crotch area inward pivoting form.
- the cuff elements or the cuff base or cuff base lines then advantageously extend essentially parallel to one another and have a smaller spacing in the transverse direction (second direction) from one another than in the front and back regions.
- the joining pattern in the first direction is virtually subdividable into three equally long sections, namely an initial section, an adjoining central section and an end section adjoining the central section and that the index of the fluctuation of the area of the starting portion and / or the end portion of the joining pattern detected by the ultrasonic welding points is at most 40%, in particular at most 35%, more particularly at most 30%, more particularly at most 25% (claim 11).
- the condition formulated according to the invention is not limited to the entire claimed article considering all 5 mm sections in which
- Ultrasonic welding points are provided, but also for the corresponding 5 mm sections of the one-third overlapping start portion and the one-third overlapping end portion met.
- the inventive design of the joining pattern of the ultrasonic welding points can be achieved by various measures.
- the distance of individual (discrete) ultrasonic welding points from each other in a first range is 0.1-2.5 mm, in particular 0.2-1.5 mm and more particularly 0.2-1.0 mm and in a second range 2 - 20 mm, in particular 3 - 15 mm, more particularly 4 - 10 mm (claim 13).
- the surface density of the ultrasonic welding points (number per unit area) in a first area is greater than in a second area (claim 14).
- the mentioned first area is a partial area of the joining pattern; In particular, it can form a subregion of the first and / or second and / or third sub-pattern of the cuff base (claim 15).
- the first and / or third part of the pattern comprises a family of at least two, in particular at least three curves, more particularly at least four, more particularly at least five curves (claim 16).
- at least two of the curves of a crowd a small maximum distance of 2 - 20 mm, in particular 2 - 15 mm and more particularly 3 - 10 mm (claim 17).
- at least two of the curves of a group have a greater maximum distance of 10 to 70 mm, in particular 15 to 60 mm and more particularly 20 to 50 mm (claim 18).
- one or more of the curves have a radius of at least 60 mm, in particular at least 70 mm, more particularly 80 mm, more particularly at least 90 mm, more particularly at least 100 mm and more particularly at most 150 mm ( Claim 19).
- the curves may also have a variable distance from each other (claim 20).
- the curves are advantageously not a continuous welding line along their extension, but a series of successively arranged ultrasonic welding points, which is then substantially linear and thus forms the curve.
- the joining pattern first discrete ultrasonic welding with a surface area of 0.3 - 4 mm 2 , in particular 0.3 - 3 mm 2 , more particularly 0.3 - 2 mm 2 , more particularly 0.5 - 1 , 1 mm 2 and further in particular 0.7 - 0.9 mm 2 (claim 21).
- the joining pattern has first and second discrete ultrasonic welding points and the area size of the first discrete ultrasonic welding points smaller than that of the second discrete ultrasonic welding sites (claim 22).
- planar design of the ultrasonic welding is rather not critical; they may be circular or oval or triangular or polygonal or sickle-shaped or dot-dashed or star-shaped or linear (claim 23).
- the sum (Ai) of the surfaces of the ultrasonic welding points of a 5 mm long section of the joining pattern in the first direction is on average 2 - 25 mm 2 , in particular 3 - 18 mm 2 , in particular 4 - 12 mm 2 and more particularly 6 - 10 mm 2 is (claim 24).
- the joining pattern of one of the cuff elements is preferably used in each case.
- Ultrasonic welding points of at least 50%, in particular of at least 60%, more particularly of at least 70% and more particularly of at least 80% and especially of at least 90% of the 5 mm long sections of the joining pattern of the sum (A x ) of the surfaces of the ultrasonic welding points directly adjacent 5 mm long portion of the joining pattern is less than 40%, in particular less than 30%, in particular less than 25% (claim 27).
- the invention also relates to a method for producing a hygiene article or surgical cover article or surgical article of the kind according to the invention with the features of claims 29, 30 and 31.
- the claimed article is designed such that the joining pattern is 300-2000 mm, in particular 350-1500 mm, in particular 400-1200 mm, more particularly 450-1100 mm and more particularly 500-1000 mm in a first direction and perpendicular thereto preferably 10 - 1200 mm, in particular 15 - 1000 mm, in particular 20 - 500 mm, further in particular 30 - 200 mm and further in particular 40-150 mm and more particularly 50-130 mm in a second direction.
- Figure 1 is a plan view of a sanitary article in the form of an incontinence diaper in just unfolded state
- Figure 2 is a sectional view with section plane II-II in Figure 3;
- 3, 4 is a partial perspective view of an ultrasonic welding device for producing articles according to the invention in an endless manufacturing process using endlessly supplied flat materials;
- Figure 5 is an enlarged sectional view of an off
- Figures 5, 6 apparent joining pattern (viewed in plan view according to arrow V on the device of Figure 4;
- Figure 6 is a plan view of an inventively designed joining pattern to illustrate the mental division into 5 mm sections
- Figure 7 is a diagram in which the area ratio of
- FIG. 8 shows a corresponding diagram with a joining pattern structure designed according to the invention.
- FIG. 1 shows a hygiene article in the form of an incontinence diaper designated as a whole by the reference numeral 2 for single use.
- FIG. 2 shows a schematic sectional view with sectional plane II-II in FIG. 1.
- the hygiene article 2 comprises a topsheet 4 and a liquid-tight backsheet 6 and an absorbent body 8 arranged therebetween.
- the topsheet 4 is a liquid-permeable nonwoven component, in particular a carded or spunbonded nonwoven, preferably with a basis weight of 8-30 g / m 2 , in particular 12-25 g / m 2 , in particular 14-22 g / m 2 and in the backsheet 6 a liquid-impermeable film component or a nonwoven
- the hygiene article as best seen in FIG.
- cuffing elements 14 with filamentous elastification means (15) arranged at their distal edge and preferably in the prestressed state by hot-melt pressure-sensitive adhesives, which form a lateral outlet guard.
- These cuff elements (14) also preferably comprise a nonwoven component 16 , in particular a hydrophobic spunbond or a spunbond meltblown (SM) or a spunbond-meltblown-spunbond (SMS) nonwoven laminate having a weight per unit area of 8-30 g / m 2 , in particular 12-20 g / m 2 , in particular 13- 18 g / m 2 .
- SM spunbond meltblown
- SMS spunbond-meltblown-spunbond
- side flaps 22 and 24 which are extended to the sides are provided.
- the side flaps 22, 24 extend between topsheet 4 and backsheet 6 and are there by welding or Gluing set.
- a welding or glue line is indicated by reference numeral 26.
- the two-sided cuff 14 in a first region 27 along a so-called Cuffsockels 28, and in a second region 29 with the
- the discrete ultrasonic welding points 30 have a maximum distance from each other of 0.1 mm - 2.5 mm in the first region 27 and a maximum distance from each other of 4.0 mm - 10.0 mm in the second region 29 and have a surface area of each 0.7-0.9 mm 2 .
- the course of the Cuffsockels 28 is best seen in Figure 1.
- FIG. 1 omits the representation of the second joining pattern which fixes the right-hand cuff element to the topsheet 4.
- the second joining pattern not shown, is arranged in mirror image.
- the hygiene article 2 further comprises a first direction 32, which forms the longitudinal direction of the hygiene article and in the manufacture of the hygiene article coincides with the machine direction.
- first direction 32 which forms the longitudinal direction of the hygiene article and in the manufacture of the hygiene article coincides with the machine direction.
- the corresponding flat material webs forming topsheet 4, backsheet 6, side flaps 24 and cuff elements 14 extend in this first direction 32.
- Ultrasonic welds 30 is also substantially along this first direction 32.
- the cuff base 28 is at least partially not straight and parallel to the first direction 32, but it extends in a curve or arcuate and thus has a component in the direction of a direction perpendicular to the first direction second direction 34 (transverse direction of the hygiene article).
- the joining pattern 36 at least partially formed by the ultrasonic welding points 30 will be described in detail below.
- the nonwoven components and / or film components which are non-releasably bonded together when used as intended form a nonwoven composite 38.
- Ultrasonic welding device illustrates a rolling in the machine direction or first direction 32 contour roller 42 and a stimulable in the ultrasonic range sonotrode 44.
- the ultrasonic welding device 40 can be integrated into a high-speed machine for the production of modern hygiene products.
- FIG. 3 illustrates an ultrasonic welding device with two sonotrodes 44 for producing the welded connection of two double-sided cuff elements, while the device according to FIG. 4 discloses only one sonotrode 44 and is provided only for the production of the ultrasonic welding connection with a cuff element.
- a corresponding additional contour roller and sonotrode for the other half could be provided upstream, downstream or parallel. It would also be conceivable that in the embodiment of Figure 3 instead of two juxtaposed sonotrodes a single in the second direction 34 continuous sonotrode is provided.
- the gap formed by the sonotrode and the contour roller would be formed Ultrasonic welding device according to Figure 3, a cuff 14 and the topsheet 4 are introduced in superimposed configuration to these components together to form the nonwoven composite and then placed on the absorbent body 8.
- FIG. 5 shows a plan view of the surface of the contour roller 42 as seen in the direction of the arrow V in FIG. 4.
- the elevations 46 on the contour roller 42 and the joining pattern 36 formed by them in a correspondingly identical manner when rolling against the supplied flat material webs can be seen in detail
- a line-shaped or row-shaped arrangement of elevations 46, which form ultrasonic welding points 30 of the later coffer base 28, can be seen.
- the spacing of the ridges 46 from one another and the number of ridges 46 per unit area on the roll surface 42 will vary to meet the particular conditions for the resulting joining pattern 36 described below.
- FIG. 6 shows a plan view of a joining pattern in a schematic illustration to clarify the theoretical subdivision of the joining pattern into 5 mm wide sections 48 in the longitudinal direction 32.
- the sections 48 thus adjoin one another in the first direction 32.
- Within each 5 mm section 48 are a number of
- Ultrasonic welding points 30 are provided which form an area fraction Ai of embossed or welded surface for each 5 mm section 48. If N of such 5 mm sections 48 are provided, which are arranged mentally in the first direction 32 from the beginning to the end of the ultrasound guide pattern 36, an average value A can be determined as follows: A- - ⁇ Ai
- an index I of the fluctuation of the area covered by the ultrasonic welding points in the first direction 32 can be given for the entire joining pattern 36 or the imaginary subdivision into N 5 mm sections 48 as follows:
- this index of the fluctuation of the area covered by the ultrasonic welding points 30 in the first direction 32 should be at most 40%.
- FIG. 7 shows, in the lower region in the extension of the abscissa, the formation of the observed pattern of ultrasonic welding points which have a small distance in a first region 27 and a greater distance in a second region 29.
- the extension of the joining pattern in the first direction (machine direction) is 820 mm, resulting in 164 5 mm sections.
- FIG. 1 An inventive design of a joining pattern 36 is shown in FIG. With isolated evaluation of the N / 3 5 mm sections contained in sections 50, 52, 54, the following values are obtained:
- a first part-pattern 60 which forms part of a cuff base 28 and extends arcuately curved, is formed from a family of several curves 62.
- the term curve is used herein for a series of consecutive discrete ultrasonic welds 30 (as can be seen in FIG. 5).
- This family of curves 62 is arranged, for example, in a range of approximately 200 to 270 mm at a close distance and parallel as well as substantially in the first direction 32.
- the curves 62 are arcuately curved, and their spacing increases in the first direction 32.
- the surface portions A ⁇ of the 5 mm sections in the first direction 32 do not vary as much as, for example, in the joining pattern according to FIG. 7 results in a much lower index of the variation of the area covered by the ultrasonic welding points.
- a first possibility is to keep the radius of curvature as large as possible in the case of curved partial patterns, that is to say to permit no pronounced curvatures.
- Another possibility which is shown in FIG. 8, is the formation of curved partial patterns in the form of a plurality of curves or rows of ultrasonic welding points whose spacing from one another is variable in particular.
- the distance between the individual ultrasonic welding points, in particular a row could also be varied.
- the area of the individual ultrasonic welding points or elevations on the contour roller could be varied.
- the arrangement and the distance of the ultrasonic welding points in a second region ie where the ultrasonic welding points have a greater distance from each other, can be varied.
- FIG. 8 shows a second part-pattern 64, which is substantially rectilinear and extends in the first direction 32.
- Such an extension essentially in the first direction 32 is then mentioned when an extension in the second direction 34 of a maximum of 5 mm can be determined over a length of about 200 mm in the first direction 32.
- a third part of the pattern 66 which like the first part of the pattern 60 extends arcuately curved and comprises a family of several curves 62. It thus also has a component in the second direction 34.
Abstract
Description
Claims
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/310,847 US20100059067A1 (en) | 2006-09-22 | 2007-09-19 | Disposable hygiene article, surgical covering item, or surgical garment |
JP2009528638A JP5247703B2 (ja) | 2006-09-22 | 2007-09-19 | 使い捨ての衛生用品 |
EP07802355.3A EP2063842B1 (de) | 2006-09-22 | 2007-09-19 | Hygieneartikel oder op-abdeckungsartikel oder op- bekleidungsartikel zum einmaligen gebrauch |
AU2007299254A AU2007299254B2 (en) | 2006-09-22 | 2007-09-19 | Disposable hygiene article, surgical covering item, or surgical garment |
CN2007800350183A CN101516309B (zh) | 2006-09-22 | 2007-09-19 | 一次性使用的卫生用品或手术用覆盖物或手术用服装用品 |
US13/323,871 US9138937B2 (en) | 2006-09-22 | 2011-12-13 | Disposable hygiene article, surgical covering item, or surgical garment |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102006046420.6 | 2006-09-22 | ||
DE102006046420A DE102006046420A1 (de) | 2006-09-22 | 2006-09-22 | Hygieneartikel oder OP-Abdeckungsartikel oder OP-Bekleidungsartikel zum einmaligen Gebrauch |
Related Child Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US12/310,847 A-371-Of-International US20100059067A1 (en) | 2006-09-22 | 2007-09-19 | Disposable hygiene article, surgical covering item, or surgical garment |
US13/323,871 Continuation US9138937B2 (en) | 2006-09-22 | 2011-12-13 | Disposable hygiene article, surgical covering item, or surgical garment |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2008034593A2 true WO2008034593A2 (de) | 2008-03-27 |
WO2008034593A3 WO2008034593A3 (de) | 2008-06-26 |
Family
ID=39134368
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2007/008134 WO2008034593A2 (de) | 2006-09-22 | 2007-09-19 | Hygieneartikel oder op-abdeckungsartikel oder op- bekleidungsartikel zum einmaligen gebrauch |
Country Status (7)
Country | Link |
---|---|
US (2) | US20100059067A1 (de) |
EP (1) | EP2063842B1 (de) |
JP (1) | JP5247703B2 (de) |
CN (1) | CN101516309B (de) |
AU (1) | AU2007299254B2 (de) |
DE (1) | DE102006046420A1 (de) |
WO (1) | WO2008034593A2 (de) |
Cited By (2)
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CN103072277A (zh) * | 2012-12-24 | 2013-05-01 | 杭州珂瑞特机械制造有限公司 | 成人失禁裤、婴儿拉拉裤生产线焊接设备专用加热模块条 |
JP2013518700A (ja) * | 2010-02-10 | 2013-05-23 | ザ プロクター アンド ギャンブル カンパニー | 結合ウェブ材料を備える吸収性物品 |
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DE102009015041A1 (de) | 2009-03-26 | 2010-09-30 | Paul Hartmann Ag | Absorbierende Inkontinenzwegwerfwindel mit Seitenabschnitten |
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JP6201525B2 (ja) * | 2013-08-26 | 2017-09-27 | 王子ホールディングス株式会社 | シートの接合装置及び接合装置を用いた使い捨ておむつの製造方法 |
CN107106342B (zh) * | 2014-11-06 | 2020-09-15 | 宝洁公司 | 开孔纤维网及其制作方法 |
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US11007095B2 (en) | 2017-12-21 | 2021-05-18 | Essity Hygiene And Health Aktiebolag | Absorbent article and method for manufacturing an absorbent article |
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- 2007-09-19 US US12/310,847 patent/US20100059067A1/en not_active Abandoned
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2011
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JP2013518700A (ja) * | 2010-02-10 | 2013-05-23 | ザ プロクター アンド ギャンブル カンパニー | 結合ウェブ材料を備える吸収性物品 |
CN103072277A (zh) * | 2012-12-24 | 2013-05-01 | 杭州珂瑞特机械制造有限公司 | 成人失禁裤、婴儿拉拉裤生产线焊接设备专用加热模块条 |
CN103072277B (zh) * | 2012-12-24 | 2015-12-23 | 杭州珂瑞特机械制造有限公司 | 成人失禁裤、婴儿拉拉裤生产线焊接设备专用加热模块条 |
Also Published As
Publication number | Publication date |
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JP2010504120A (ja) | 2010-02-12 |
AU2007299254A1 (en) | 2008-03-27 |
DE102006046420A1 (de) | 2008-04-03 |
EP2063842B1 (de) | 2016-11-09 |
EP2063842A2 (de) | 2009-06-03 |
US20100059067A1 (en) | 2010-03-11 |
US20120143164A1 (en) | 2012-06-07 |
US9138937B2 (en) | 2015-09-22 |
AU2007299254B2 (en) | 2013-02-07 |
WO2008034593A3 (de) | 2008-06-26 |
CN101516309B (zh) | 2013-04-24 |
JP5247703B2 (ja) | 2013-07-24 |
CN101516309A (zh) | 2009-08-26 |
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