CA2348977C - Fill-through-the-top package and method and apparatus for making same - Google Patents
Fill-through-the-top package and method and apparatus for making same Download PDFInfo
- Publication number
- CA2348977C CA2348977C CA002348977A CA2348977A CA2348977C CA 2348977 C CA2348977 C CA 2348977C CA 002348977 A CA002348977 A CA 002348977A CA 2348977 A CA2348977 A CA 2348977A CA 2348977 C CA2348977 C CA 2348977C
- Authority
- CA
- Canada
- Prior art keywords
- package
- fastener
- track
- panel
- web
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
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
- 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
- B29C65/18—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
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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
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/349—Cooling the welding zone on the welding spot
-
- 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
- B29C66/431—Joining the articles to themselves
- B29C66/4312—Joining the articles to themselves for making flat seams in tubular or hollow articles, e.g. transversal seams
- B29C66/43121—Closing the ends of tubular or hollow single articles, e.g. closing the ends of bags
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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
- B29C66/818—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 cooling constructional aspects, or by the thermal or electrical insulating or conducting constructional aspects of the welding jaws or of the clamps ; comprising means for compensating for the thermal expansion of the welding jaws or of the clamps
- B29C66/8181—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 cooling constructional aspects, or by the thermal or electrical insulating or conducting constructional aspects of the welding jaws or of the clamps ; comprising means for compensating for the thermal expansion of the welding jaws or of the clamps characterised by the cooling constructional aspects
- B29C66/81811—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 cooling constructional aspects, or by the thermal or electrical insulating or conducting constructional aspects of the welding jaws or of the clamps ; comprising means for compensating for the thermal expansion of the welding jaws or of the clamps characterised by the cooling constructional aspects of the welding jaws
-
- 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
- B29C66/83421—Roller, cylinder or drum types; Band or belt types; Ball types band or belt types
- B29C66/83423—Roller, cylinder or drum types; Band or belt types; Ball types band or belt types cooperating bands or belts
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B43/00—Forming, feeding, opening or setting-up containers or receptacles in association with packaging
- B65B43/12—Feeding flexible bags or carton blanks in flat or collapsed state; Feeding flat bags connected to form a series or chain
- B65B43/123—Feeding flat bags connected to form a series or chain
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B51/00—Devices for, or methods of, sealing or securing package folds or closures; Devices for gathering or twisting wrappers, or necks of bags
- B65B51/10—Applying or generating heat or pressure or combinations thereof
- B65B51/14—Applying or generating heat or pressure or combinations thereof by reciprocating or oscillating members
- B65B51/146—Closing bags
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B61/00—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages
- B65B61/18—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages for making package-opening or unpacking elements
- B65B61/188—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages for making package-opening or unpacking elements by applying or incorporating profile-strips, e.g. for reclosable bags
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D33/00—Details of, or accessories for, sacks or bags
- B65D33/16—End- or aperture-closing arrangements or devices
- B65D33/25—Riveting; Dovetailing; Screwing; using press buttons or slide fasteners
- B65D33/2508—Riveting; Dovetailing; Screwing; using press buttons or slide fasteners using slide fasteners with interlocking members having a substantially uniform section throughout the length of the fastener; Sliders therefor
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- A—HUMAN NECESSITIES
- A44—HABERDASHERY; JEWELLERY
- A44B—BUTTONS, PINS, BUCKLES, SLIDE FASTENERS, OR THE LIKE
- A44B19/00—Slide fasteners
- A44B19/24—Details
- A44B19/26—Sliders
- A44B19/267—Sliders for slide fasteners with edges of stringers having uniform section throughout the length thereof
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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
- B29C66/349—Cooling the welding zone on the welding spot
- B29C66/3492—Cooling the welding zone on the welding spot by means placed on the side opposed to the welding tool
-
- 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
- B29C66/349—Cooling the welding zone on the welding spot
- B29C66/3494—Cooling the welding zone on the welding spot while keeping the welding zone under pressure
-
- 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
- B29C66/71—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 composition of the plastics material of the parts to be joined
-
- 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
- B29C66/723—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 being multi-layered
- B29C66/7232—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 being multi-layered comprising a non-plastics layer
- B29C66/72321—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 being multi-layered comprising a non-plastics layer consisting of metals or their alloys
-
- 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
- B29C66/723—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 being multi-layered
- B29C66/7232—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 being multi-layered comprising a non-plastics layer
- B29C66/72327—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 being multi-layered comprising a non-plastics layer consisting of natural products or their composites, not provided for in B29C66/72321 - B29C66/72324
- B29C66/72328—Paper
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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
- B29C66/723—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 being multi-layered
- B29C66/7234—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 being multi-layered comprising a barrier layer
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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
- B29C66/73—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 intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
- B29C66/737—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 intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the state of the material of the parts to be joined
- B29C66/7379—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 intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the state of the material of the parts to be joined degradable
- B29C66/73793—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 intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the state of the material of the parts to be joined degradable soluble, e.g. water-soluble
-
- 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
- B29C66/812—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 composition, by the structure, by the intensive physical properties or by the optical properties of the material constituting the pressing elements, e.g. constituting the welding jaws or clamps
- B29C66/8122—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 composition, by the structure, by the intensive physical properties or by the optical properties of the material constituting the pressing elements, e.g. constituting the welding jaws or clamps characterised by the composition of the material constituting the pressing elements, e.g. constituting the welding jaws or clamps
-
- 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
- B29C66/81411—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 characterised by its cross-section, e.g. transversal or longitudinal, being non-flat
- B29C66/81415—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 characterised by its cross-section, e.g. transversal or longitudinal, being non-flat being bevelled
- B29C66/81419—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 characterised by its cross-section, e.g. transversal or longitudinal, being non-flat being bevelled and flat
-
- 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
- B29C66/818—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 cooling constructional aspects, or by the thermal or electrical insulating or conducting constructional aspects of the welding jaws or of the clamps ; comprising means for compensating for the thermal expansion of the welding jaws or of the clamps
- B29C66/8181—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 cooling constructional aspects, or by the thermal or electrical insulating or conducting constructional aspects of the welding jaws or of the clamps ; comprising means for compensating for the thermal expansion of the welding jaws or of the clamps characterised by the cooling constructional aspects
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
- B29K2023/04—Polymers of ethylene
- B29K2023/06—PE, i.e. polyethylene
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
- B29K2023/04—Polymers of ethylene
- B29K2023/06—PE, i.e. polyethylene
- B29K2023/0608—PE, i.e. polyethylene characterised by its density
- B29K2023/0625—LLDPE, i.e. linear low density polyethylene
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
- B29K2023/04—Polymers of ethylene
- B29K2023/06—PE, i.e. polyethylene
- B29K2023/0608—PE, i.e. polyethylene characterised by its density
- B29K2023/0633—LDPE, i.e. low density polyethylene
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
- B29K2023/04—Polymers of ethylene
- B29K2023/06—PE, i.e. polyethylene
- B29K2023/0608—PE, i.e. polyethylene characterised by its density
- B29K2023/065—HDPE, i.e. high density polyethylene
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
- B29K2023/04—Polymers of ethylene
- B29K2023/08—Copolymers of ethylene
- B29K2023/083—EVA, i.e. ethylene vinyl acetate copolymer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
- B29K2023/04—Polymers of ethylene
- B29K2023/08—Copolymers of ethylene
- B29K2023/086—EVOH, i.e. ethylene vinyl alcohol copolymer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2027/00—Use of polyvinylhalogenides or derivatives thereof as moulding material
- B29K2027/08—PVDC, i.e. polyvinylidene chloride
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
- B29K2995/0037—Other properties
- B29K2995/005—Oriented
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
- B29K2995/0037—Other properties
- B29K2995/005—Oriented
- B29K2995/0053—Oriented bi-axially
-
- 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
- B29L2005/00—Elements of slide fasteners
-
- 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
- B29L2031/712—Containers; Packaging elements or accessories, Packages
- B29L2031/7128—Bags, sacks, sachets
Abstract
A fill-through-the-top reclosable package includes first and second opposing body panels joined to each other along a pair of sides and a bottom bridging the pair of sides.
The package is provided with a reclosable fastener extending along a package top disposed opposite the bottom. The fastener includes first and second opposing tracks.
The first track includes a male profile, while the second track includes a female profile adapted to releasably interlock with the male profile. To provide tamper evidence, the first and second tracks may be joined to each other along an area of weakness.
When making the package, the first track is first attached to the first panel, the package is filled with a product via a fill opening between the second track and the second panel, and then the second track is attached to the second panel.
The package is provided with a reclosable fastener extending along a package top disposed opposite the bottom. The fastener includes first and second opposing tracks.
The first track includes a male profile, while the second track includes a female profile adapted to releasably interlock with the male profile. To provide tamper evidence, the first and second tracks may be joined to each other along an area of weakness.
When making the package, the first track is first attached to the first panel, the package is filled with a product via a fill opening between the second track and the second panel, and then the second track is attached to the second panel.
Description
FILL-THROUGH-THE-TOP PACKAGE
AND METHOD AND APPARATUS FOR MAKING SAME
FIELD OF THE INVENTION
The present invention generally relates to packages to be filled with a product on a form, fill, and seal machine and, more particularly, to a reclosable package filled through its top on a form, fill, and seal machine.
S BACKGROUND OF THE INVENTION
A typical reclosable package includes first and second opposing panels joined to each other along a pair of sides and a bottom bridging the pair of sides. A
reclosable fastener extends along a package top disposed opposite the bottom The fastener generally includes first and second opposing tracks. The first track includes a male profile, while the second track includes a female profile adapted to releasably interlock with the male profile. The first and second tracks are thermally fused to, or integrally formed with, the respective first and second panels. To open and close the fastener, the package may be provided with a slider mounted to the fastener.
If reclosable packages of the foregoing type are to be prepackaged with a product and then sold in a store, the packages are typically prepared on a horizontal or vertical form, fill, and seal machine. In the form, fill, and seal machine, the package is first formed into the shape of a pouch having a fill opening at either the top or the bottom. If the fill opening is disposed at the bottom, then the top is sealed prior to filling the package.
Similarly, if the fill opening is disposed at the top, then the bottom is sealed prior to filling the package. Next, the package filled with the product via the fill opening.
Finally, the fill opening is sealed shut to fully enclose the product within the package. If the product delivered to the package includes food, then the fill opening is typically provided at the package bottom and a tamper-evident feature is provided along the top. The tamper-evident feature indicates to a consumer whether or not the package has been tampered with prior to purchase.
Some reclosable packages include a gusset along the bottom which expands in response to filling the package with a product. The gusset is advantageous because it increases the volume of product that can be contained in the package and, when the gusset expands, it allows the package to stand up on a store shelf The stand-up package
AND METHOD AND APPARATUS FOR MAKING SAME
FIELD OF THE INVENTION
The present invention generally relates to packages to be filled with a product on a form, fill, and seal machine and, more particularly, to a reclosable package filled through its top on a form, fill, and seal machine.
S BACKGROUND OF THE INVENTION
A typical reclosable package includes first and second opposing panels joined to each other along a pair of sides and a bottom bridging the pair of sides. A
reclosable fastener extends along a package top disposed opposite the bottom The fastener generally includes first and second opposing tracks. The first track includes a male profile, while the second track includes a female profile adapted to releasably interlock with the male profile. The first and second tracks are thermally fused to, or integrally formed with, the respective first and second panels. To open and close the fastener, the package may be provided with a slider mounted to the fastener.
If reclosable packages of the foregoing type are to be prepackaged with a product and then sold in a store, the packages are typically prepared on a horizontal or vertical form, fill, and seal machine. In the form, fill, and seal machine, the package is first formed into the shape of a pouch having a fill opening at either the top or the bottom. If the fill opening is disposed at the bottom, then the top is sealed prior to filling the package.
Similarly, if the fill opening is disposed at the top, then the bottom is sealed prior to filling the package. Next, the package filled with the product via the fill opening.
Finally, the fill opening is sealed shut to fully enclose the product within the package. If the product delivered to the package includes food, then the fill opening is typically provided at the package bottom and a tamper-evident feature is provided along the top. The tamper-evident feature indicates to a consumer whether or not the package has been tampered with prior to purchase.
Some reclosable packages include a gusset along the bottom which expands in response to filling the package with a product. The gusset is advantageous because it increases the volume of product that can be contained in the package and, when the gusset expands, it allows the package to stand up on a store shelf The stand-up package
2 from a hook or post. The bottom gusset, however, makes it less practical to provide a fill opening at the bottom because most of the product resides in the gusset.
SUMMARY OF THE INVENTION
In accordance with one aspect of the present invention, a fill-through-the-top reclosable package includes first and second opposing body panels joined to each other along a pair of sides and a bottom bridging the pair of sides. The bottom optionally includes a gusset. The package is provided with a reclosable fastener extending along a package top disposed opposite the bottom. The fastener includes first and second opposing tracks. The first track includes a male profile, while the second track includes a female profile adapted to releasably interlock with the male profile. To provide tamper evidence, the first and second tracks are joined to each other along an area of weakness.
The first and second tracks are optionally provided with respective first and second fins joined to each other along the aforementioned area of weakness to effectively create a single fin comprised of the first and second fins. To open and close the fastener, the package is optionally provided with a slider mounted to the fastener.
The package is convertible between a pre-filled condition and a post-filled condition. In the pre-filled condition, the first track is connected to the first panel, but the second track is only connected to the second panel along the sides thereby creating a fill opening between the second track and the second panel in a region between the sides.
After the package is filled with a product via the fill opening, the package is converted to the post-filled condition. In the post-filled condition, the second track is connected to the second panel to seal the fill opening.
In accordance with another aspect of the present invention, a method of making a reclosable package includes the following sequence of steps:
(a) supplying a web of plastic material;
(b) supplying a reclosable fastener including first and second opposing tracks, the first track including a male profile, the second track including a female profile adapted to releasably interlock with the male profile, the first and second tracks being joined to each other along an area of weakness;
(c) folding the web to provide first and second opposing panels;
(d) attaching the first track to the first panel;
(e) sealing the web such that the first and second panels are joined to each other along a pair of sides and a bottom bridging the pair of sides;
(f) filling the package with a product via a fill opening between the second track and the second panel; and (g) attaching the second track to the second panel to seal the fill opening In accordance with yet another aspect of the present invention, another method of making a reclosable package includes the following sequence of steps:
(a) supplying a web of plastic material in a longitudinal direction;
(b) supplying a reclosable fastener including first and second opposing tracks, the first track including a male profile, the second track including a female profile adapted to releasably interlock with the male profile;
(c) folding the web along one or more longitudinal folds to provide first and second opposing panels, the longitudinal folds creating a bottom of the package;
(d) attaching the first track to the first panel;
(e) sealing the web along a pair of sides, the bottom bridging the pair of sides;
(f) filling the package with a product via a fill opening between the second track and the second panel; and (g) attaching the second track to the second panel to seal the fill opening.
In accordance with a further aspect of the present invention, there is provided an apparatus for performing the above methods.
The method and apparatus of the invention allow easier formation, filling, and sealing of packages. By filling a product via an opening between the second track and the second panel, lodging of the product in one or both of the tracks can be inhibited or even prevented, which would otherwise cause interference with the opening and closing of the tracks by the consumer. Additionally, a tamper-evident feature can be more easily used below the tracks when the method of the invention is used. By filling between the second track and the second panel, a tamper-evident feature can be formed below the tracks and placed within the package prior to filling. Formation of such a tamper-evident feature would be more difficult if the product had already been placed in the package.
3a BRIEF DESCRIPTION OF THE DRAWINGS
Other objects and advantages of the invention will become apparent upon reading the following detailed description and upon reference to the drawings in which:
FIG. 1 is an isometric view of a reclosable plastic bag in a pre-filled condition embodying the present invention;
FIG. 2 is a sectional view taken generally along line 2-2 in FIG. 1;
FIG. 3 is an isometric view of the reclosable plastic bag in a post-filled condition;
FIG. 4 is a sectional view taken generally along line 4-4 in FIG. 3;
FIG. 5 are a diagrammatic representation of a method and apparatus for making and filling the reclosable plastic bag;
FIG. 6 is a diagrammatic representation of a method and apparatus for sealing the reclosable plastic bag;
FIG. 7 is a sectional view taken generally along line 7-7 in FIG. 6;
FIG. 8 is a sectional view taken generally along line 8-8 in FIG. 6; and FIG. 9 is a sectional view taken generally along line 9-9 in FIG. 6.
While the invention is susceptible to various modifications and alternative forms, a specific embodiment thereof has been shown by way of example in the drawings and will herein be described in detail. It should be understood, however, that it is not intended to limit the invention to the particular forms disclosed, but on the contrary, the intention i.s to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention as defined by the appended claims.
DETAILED DESCRIPTION OF THE PREFERRED EMBOD»iENTS
Turning now to the drawings, FIGS. I and 3 depict a fill-through-the-top reclosable package 10, and FIGS. 2 and 4 depict a sectional view of the package 10.
Referring to FIGS. 1 through 4, the package 10 includes first and second opposing body panels 12 and 14 joined to each other along a pair of sides 16 and a bottom 20 bridging the pair of sides 16. The bottom 20 optionally includes a gusset 22.
The package IO is provided with a reclosable fastener 23 extending along a package top disposed opposite the gusseted bottom 20. The fastener 23 includes first amd second opposing tracks 24 and 26. The first track 24 includes a rib-type male profile 213 and a first fin 30 extending downward from the male profile 28, while the second track 26 includes a groove-type female profile 32 and a second fin 34 extending downward from the female profile 32. The male and female profiles 28 and 32 are adapted to interlock with each other. The first track 24 includes a plurality of narrow first sealant ribs 36 on an outer surface of the first fin 30 to facilitate connecting the first fin 30 to the first panel 12, and the second track 26 includes a plurality of narrow second sealant ribs 38 on an outer surface of the second fin 34 to facilitate connecting the second fin 34 to the secornd panel 14. To provide tamper evidence, lowermost ends of the first and second fins 30 a:nd 34 are joined to each other along a line of weakness 40 to effectively create a single tin comprised of the first and second fins 30 and 34. The line of weakness 40 may be a scored line, a perforated line, a thinned die line, or a tear strip. In an alternative embodiment, the first and second tracks 24 and 26 do not include the respective depending fins 30 and 34, and tamper evidence is provided by joining the lowermost ends of the profiles 28 and 34 instead of the lowermost ends of the fins.
To open and close the fastener 23, the package 10 is optionally provided with a slider 42 mounted to the fastener 23. The slider 42 disengages the profiles 28 and 32 iv 5 response to movement along the fastener 23 in an opening direction and engages the profiles 28 and 32 in response to movement along the fastener 23 in a closing direction.
To accommodate the slider 42 and make it difficult to open the fastener 23 without using the slider 42, the fastener 23 is preferably free of pull flanges extending upwardly from the male and female profiles 28 and 32. To stop movement of the slider 42 near the sides I 6 of the package 10 and thereby prevent the slider 42 from sliding off the end of the fastener 23, a pair of end terminations 44 and 46 are mounted to the fastener 23 near the respective sides I 6 of the package I 0. The end termination 44 stops movement of the slider 42 in the opening direction, while the end termination 46 stops movement of the slider 42 in the closing direction. The end terminations 44 and 46 may be a separate element attached to the fastener 23, as shown in FIGS. I and 3, or may be integrally formed with the fastener 23. Examples of end terminations are disclosed in U
S. Patent Nos. 5,088,971 to Herrington, 5,131,121 to Herrington et al., 5,161,286 to Herrington et al., 5,405,478 to Richardson et al., 5,442,837 to Morgan, 5,448,807 to Herrington, 5,482,375 to Richardson et al., and 5,924,173 to Dobreski et al.
The package 10 is convertible between a pre-filled condition and a post-filled condition. In the pre-filled condition shown in FIGS. I and 2, the first fin 30 is connectf:d to the first panel 12, but the second fin 34 is not connected to the second panel 14, except along the sides 16, thereby creating a fill opening between the second fin 34 and the second panel 14. After the package 10 is filled with a product via the fill opening, the package 10 is convened to the post-filled condition shown in FIGS. 3 and 4. In the poso-filled condition, the second fin 34 is connected to the second panel 14 to seal the fill opening. If the bottom 20 includes the gusset 22, the gusset 22 expands in response to filling the package 10 with the product. The gusset 22 is advantageous because it increases the volume of product that can be contained in the package 10 and, when the gusset 22 expands, it allows the package 10 to stand up on a store shelf 48.
The stand-up package 10 obviates the use of additional features such as headers with holes for hanging the package from a hook or post.
In accordance with another aspect of the present invention, there is provided a method and apparatus for making and filling the reclosable package 10. The method and apparatus are illustrated in FIGS. 5, 6, 7, 8, and 9. Referring first to FIG.
5, a core 50 supplies a web 52 of plastic material. A folder 53 folds the web 52 to provide first and second opposing panels 12 and 14 joined along a bottom 20 having one or more fold lines. The folder 53 optionally includes a gusset point 54 that creates a gusset 22. The folded web 52 is conveyed between a pair of rollers 56 that bring the first and second panels 12 and 14 is close proximity to each other. A spool 58 supplies a reclosable fastener 23 having the structure discussed above. The fastener 23 is fed between the upper portions of the first and second panels 12 and 14.
A sealer 60 seals the first fin 30 (see FIGS. 1 and 2) to the first panel 12 in the machine direction, i.e., the direction of movement of the web 52. The sealer 60 may be a stationary convective (hot air) sealer that does not contact the web 52, a reciprocating heated bar sealer that intermittently contacts the web 52, or a band sealer comprising a heated band that moves with the web 52 until the seal is made. The first sealant ribs 36 (see FIGS. 1 and 2) on the outer surface of the first fin 30 facilitate this attachment between the first fin 30 and the first panel 12. At this time, the second fin 34 remains disconnected from the second panel 14. Another reciprocating heated bar sealer 62 seals the first and second panels 12 and 14 to each other in the transverse direction. The side seals 16 are generated by the sealer 62 at bag width distances apart to create individual packages 10. If the bottom 20 includes a gusset 22, a heated bar sealer creates a pair of angle seals 66 (FIG. 1 ) along the gusset 22 on opposite sides of each side seal 16. The first and second panels 12 and 14 are attached to each other at the angle seals 66.
Referring back to FIGS. 1 and 2, if the packages 10 are provided with respective sliders 42, the sliders 42 are mounted to the fastener 23 at bag width distances apart either before the fastener 23 is attached to the web 52 or after the fastener 23 is attached to the web 52. To stop movement of the slider 42 near the sides 16 of each package 10, a pair of end terminations 44 and 46 are mounted to the fastener 23 on opposite sides of each side seal 16.
The sliders 42 may be installed using various techniques. For example, the slider 42 may have hinged wings that fold and snap permanently in place to attach the slider 42 to the fastener 23. Further details concerning such a hinged slider may be obtained from U.S. Patent Nos_ 5,010,627, 5,063,644, and 5,070,583 to Herrington.
In an alternative embodiment, the slider 42 may have a pair of side walls that are temporarily flexed away from each other as the slider 42 is mounted on the fastener 23 and then returned to their original position after the slider 42 is mounted.
In another alternative embodiment, prior to the formation of the side seals, the fastener 23 is cut apart at a location where a side seal is to be generated, the ends formed by the cutter are moved laterally relative to each other to expose the ends, and the slider 42 is threaded onto one of the exposed ends. Further details concerning this technique of inserting a slider through a split fastener may be obtained from U.S. Patent No. 5,431,760 to Donovan. In yet another alternative embodiment, prior to the formation of the side seals, the fastener 23 is notched at a location where a side seal is to be generated and the slider 42 is threaded onto the fastener 23 via the notch. The notch is sized to accommodate the slider 42. Further details concerning this technique of inserting a slider onto a notched fastener may be obtained from U.S. Patent 6,286,189 to Provan et al. entitled "Zipper and Zipper Arrangements and Methods of Manufacturing the Same".
After forming the side seals 16 and installing such optional components as a slider 42 and end terminations 44 and 46, a cutter separates the packages 10 from each other at the side seals 16. Each package 10 is then placed beneath a fill tube having a spout that is inserted into a fill opening between the second fin 34 and the second panel 14 (see FIGS
I and 2). The fill tube conveys a predetermined amount of product to the interior of the package 10. The gusset 22 expands in response to filling the package 10 with the product.
FIG. 6 illustrates a method and apparatus for sealing the filled packages 10 so that they are ready for shipment to and display at a store. The apparatus includes a pair of spaced, profiled guides 72, a pair of moving members 74, a reciprocating heated bar sealer 76, and a stationary backing plate 82. The profiled guides 72 are shaped in cross-section to support each package by either the fastener 23, the slider 42, and/or the end A
terminations 44 and 46. As best shown in FIG. 7, the illustrated guides 72 include respective first steps 78 for engaging the respective lower shoulders of the slider 42 and respective second steps 80 for engaging the lower sides of the end terminations 44 and 46. The opposing inner vertical faces of the guides 72 below the second steps 80 are spaced sufficiently apart to allow the fins 30 and 34 to fit therebetween, but sufficiently close to minimize the amount of air in the package head space above the product in the filled package. Each filled package 10 may be manually placed between the guides 72 or automatically fed into the guides 72 by conventional conveying equipment. The guides 72 are preferably made of a low-friction, rigid material such as hard anodized aluminum or ultra high density polyethylene.
The moving members 74 are disposed on opposite sides of the package 10 beneath the respective guides 72. The moving members 74 continuously or intermittently convey the packages 10 supported by the guides 72 to the sealer 76. Each moving member 74 is TM
preferably a Teflon-coated glass-cloth belt encompassing a pair of spaced pulleys. As shown in FIGS. 6 and 8, the reciprocating heated bar sealer 76 is disposed within one of the conveyor belts, while the backing plate 82 is disposed within the other of the conveyor belts. When a package 10 is disposed between the sealer 76 and the backing plate 82, the sealer 76 presses the package 10 against the backing plate 82 (with the belts disposed therebetween) to attach the second fin 34 to the second panel 14 in the region between the sides 16, thereby sealing the fill opening of the filled package 10 (see FIG. 8). The backing plate 82 is optionally cooled with chilled water or cool air as such pressure is applied by the sealer 76. Additional cooling bars are optionally located within the moving members 74 downstream from the sealer 76 and the backing plate 82. Instead of the heated bar sealer 76, the apparatus for sealing the filled packages may include a heated band of metal, such as steel, lining the inner surface of the belt of each moving member 7 4 and moving with the belt. The heated bands inside the respective belts seal the second fin 34 to the second panel 14 as the belts convey the associated package 10 through the guides 72. Once the fill opening is sealed, the package 10 is ready for shipment to and display at a store. The fully sealed package 10 is shown in FIG. 9 The package I 0 may be composed of various plastic polymers, copolymers, coextrusions andlor laminations. The panels 12 and 14 are preferably comprised of mono-layer or multi-layer combinations of polyethylene (high, medium, low, linear low, and/or ultra low density polymers including metallocene); polypropylene (oriented and/or biaxially oriented); ethylene vinyl acetate; nylon (oriented and/or biaxially oriented);
polyethylene terephthalate (oriented and/or biaxially oriented); polyvinyl chloride;
ethylene vinyl alcohol (EVOH); polyvinylidene chloride (PVDC); polyvinyl alcohol (PVOH); polystyrene; foil and/or metalization; and paper. The slider 42 and end terminations 44 and 46 are preferably comprised of mono-material, blends, alloys, and/or co-polymers of: polyethylene (high, medium, low, linear low, and/or ultra low density polymers); polypropylene (oriented and/or biaxially oriented); ethylene vinyl acetate;
nylon (oriented and/or biaxially oriented); thermoplastic polyesters;
polycarbonate;
acrylics; and/or polystyrene. The profiles 12 and 14 and the fins 30 and 34 are preferably comprised of mono-layer, blends, alloys, coextrusions, laminations and/or coatings of:
polyethylene (high, medium, low, linear low, and/or ultra low density polymers including metallocene); polypropylene (oriented and/or biaxially oriented); ethylene vinyl acetate;
nylon (oriented and/or biaxially oriented); polyethylene terephthalate (oriented and/or biaxially oriented); polyvinyl chloride; ethylene vinyl alcohol (EVOH);
polyvinylidene chloride (PVDC); polyvinyl alcohol (PVOH); polystyrene; foil and/or metalization; and paper. The sealant ribs 36 and 38 are preferably comprised of mono-material, blends, and/or coextrusions o~ polyethylene (low, linear low, and/or ultra low density polymers including metallocene); ethylene vinyl acetate, adhesive or low melting temperature sealant.
While the present invention has been described with reference to one or more particular embodiments, those skilled in the art will recognize that many changes may be made thereto without departing from the spirit and scope of the present invention. Each of these embodiments and obvious variations thereof is contemplated as falling within the spirit and scope of the claimed invention, which is set forth in the following claims.
__ ,_,.am., . ...~. .~... . -. .... ....w . . ~.._.M,. ~ ..".-,w-_~,".-......
...M._~ ~. . _. ,
SUMMARY OF THE INVENTION
In accordance with one aspect of the present invention, a fill-through-the-top reclosable package includes first and second opposing body panels joined to each other along a pair of sides and a bottom bridging the pair of sides. The bottom optionally includes a gusset. The package is provided with a reclosable fastener extending along a package top disposed opposite the bottom. The fastener includes first and second opposing tracks. The first track includes a male profile, while the second track includes a female profile adapted to releasably interlock with the male profile. To provide tamper evidence, the first and second tracks are joined to each other along an area of weakness.
The first and second tracks are optionally provided with respective first and second fins joined to each other along the aforementioned area of weakness to effectively create a single fin comprised of the first and second fins. To open and close the fastener, the package is optionally provided with a slider mounted to the fastener.
The package is convertible between a pre-filled condition and a post-filled condition. In the pre-filled condition, the first track is connected to the first panel, but the second track is only connected to the second panel along the sides thereby creating a fill opening between the second track and the second panel in a region between the sides.
After the package is filled with a product via the fill opening, the package is converted to the post-filled condition. In the post-filled condition, the second track is connected to the second panel to seal the fill opening.
In accordance with another aspect of the present invention, a method of making a reclosable package includes the following sequence of steps:
(a) supplying a web of plastic material;
(b) supplying a reclosable fastener including first and second opposing tracks, the first track including a male profile, the second track including a female profile adapted to releasably interlock with the male profile, the first and second tracks being joined to each other along an area of weakness;
(c) folding the web to provide first and second opposing panels;
(d) attaching the first track to the first panel;
(e) sealing the web such that the first and second panels are joined to each other along a pair of sides and a bottom bridging the pair of sides;
(f) filling the package with a product via a fill opening between the second track and the second panel; and (g) attaching the second track to the second panel to seal the fill opening In accordance with yet another aspect of the present invention, another method of making a reclosable package includes the following sequence of steps:
(a) supplying a web of plastic material in a longitudinal direction;
(b) supplying a reclosable fastener including first and second opposing tracks, the first track including a male profile, the second track including a female profile adapted to releasably interlock with the male profile;
(c) folding the web along one or more longitudinal folds to provide first and second opposing panels, the longitudinal folds creating a bottom of the package;
(d) attaching the first track to the first panel;
(e) sealing the web along a pair of sides, the bottom bridging the pair of sides;
(f) filling the package with a product via a fill opening between the second track and the second panel; and (g) attaching the second track to the second panel to seal the fill opening.
In accordance with a further aspect of the present invention, there is provided an apparatus for performing the above methods.
The method and apparatus of the invention allow easier formation, filling, and sealing of packages. By filling a product via an opening between the second track and the second panel, lodging of the product in one or both of the tracks can be inhibited or even prevented, which would otherwise cause interference with the opening and closing of the tracks by the consumer. Additionally, a tamper-evident feature can be more easily used below the tracks when the method of the invention is used. By filling between the second track and the second panel, a tamper-evident feature can be formed below the tracks and placed within the package prior to filling. Formation of such a tamper-evident feature would be more difficult if the product had already been placed in the package.
3a BRIEF DESCRIPTION OF THE DRAWINGS
Other objects and advantages of the invention will become apparent upon reading the following detailed description and upon reference to the drawings in which:
FIG. 1 is an isometric view of a reclosable plastic bag in a pre-filled condition embodying the present invention;
FIG. 2 is a sectional view taken generally along line 2-2 in FIG. 1;
FIG. 3 is an isometric view of the reclosable plastic bag in a post-filled condition;
FIG. 4 is a sectional view taken generally along line 4-4 in FIG. 3;
FIG. 5 are a diagrammatic representation of a method and apparatus for making and filling the reclosable plastic bag;
FIG. 6 is a diagrammatic representation of a method and apparatus for sealing the reclosable plastic bag;
FIG. 7 is a sectional view taken generally along line 7-7 in FIG. 6;
FIG. 8 is a sectional view taken generally along line 8-8 in FIG. 6; and FIG. 9 is a sectional view taken generally along line 9-9 in FIG. 6.
While the invention is susceptible to various modifications and alternative forms, a specific embodiment thereof has been shown by way of example in the drawings and will herein be described in detail. It should be understood, however, that it is not intended to limit the invention to the particular forms disclosed, but on the contrary, the intention i.s to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention as defined by the appended claims.
DETAILED DESCRIPTION OF THE PREFERRED EMBOD»iENTS
Turning now to the drawings, FIGS. I and 3 depict a fill-through-the-top reclosable package 10, and FIGS. 2 and 4 depict a sectional view of the package 10.
Referring to FIGS. 1 through 4, the package 10 includes first and second opposing body panels 12 and 14 joined to each other along a pair of sides 16 and a bottom 20 bridging the pair of sides 16. The bottom 20 optionally includes a gusset 22.
The package IO is provided with a reclosable fastener 23 extending along a package top disposed opposite the gusseted bottom 20. The fastener 23 includes first amd second opposing tracks 24 and 26. The first track 24 includes a rib-type male profile 213 and a first fin 30 extending downward from the male profile 28, while the second track 26 includes a groove-type female profile 32 and a second fin 34 extending downward from the female profile 32. The male and female profiles 28 and 32 are adapted to interlock with each other. The first track 24 includes a plurality of narrow first sealant ribs 36 on an outer surface of the first fin 30 to facilitate connecting the first fin 30 to the first panel 12, and the second track 26 includes a plurality of narrow second sealant ribs 38 on an outer surface of the second fin 34 to facilitate connecting the second fin 34 to the secornd panel 14. To provide tamper evidence, lowermost ends of the first and second fins 30 a:nd 34 are joined to each other along a line of weakness 40 to effectively create a single tin comprised of the first and second fins 30 and 34. The line of weakness 40 may be a scored line, a perforated line, a thinned die line, or a tear strip. In an alternative embodiment, the first and second tracks 24 and 26 do not include the respective depending fins 30 and 34, and tamper evidence is provided by joining the lowermost ends of the profiles 28 and 34 instead of the lowermost ends of the fins.
To open and close the fastener 23, the package 10 is optionally provided with a slider 42 mounted to the fastener 23. The slider 42 disengages the profiles 28 and 32 iv 5 response to movement along the fastener 23 in an opening direction and engages the profiles 28 and 32 in response to movement along the fastener 23 in a closing direction.
To accommodate the slider 42 and make it difficult to open the fastener 23 without using the slider 42, the fastener 23 is preferably free of pull flanges extending upwardly from the male and female profiles 28 and 32. To stop movement of the slider 42 near the sides I 6 of the package 10 and thereby prevent the slider 42 from sliding off the end of the fastener 23, a pair of end terminations 44 and 46 are mounted to the fastener 23 near the respective sides I 6 of the package I 0. The end termination 44 stops movement of the slider 42 in the opening direction, while the end termination 46 stops movement of the slider 42 in the closing direction. The end terminations 44 and 46 may be a separate element attached to the fastener 23, as shown in FIGS. I and 3, or may be integrally formed with the fastener 23. Examples of end terminations are disclosed in U
S. Patent Nos. 5,088,971 to Herrington, 5,131,121 to Herrington et al., 5,161,286 to Herrington et al., 5,405,478 to Richardson et al., 5,442,837 to Morgan, 5,448,807 to Herrington, 5,482,375 to Richardson et al., and 5,924,173 to Dobreski et al.
The package 10 is convertible between a pre-filled condition and a post-filled condition. In the pre-filled condition shown in FIGS. I and 2, the first fin 30 is connectf:d to the first panel 12, but the second fin 34 is not connected to the second panel 14, except along the sides 16, thereby creating a fill opening between the second fin 34 and the second panel 14. After the package 10 is filled with a product via the fill opening, the package 10 is convened to the post-filled condition shown in FIGS. 3 and 4. In the poso-filled condition, the second fin 34 is connected to the second panel 14 to seal the fill opening. If the bottom 20 includes the gusset 22, the gusset 22 expands in response to filling the package 10 with the product. The gusset 22 is advantageous because it increases the volume of product that can be contained in the package 10 and, when the gusset 22 expands, it allows the package 10 to stand up on a store shelf 48.
The stand-up package 10 obviates the use of additional features such as headers with holes for hanging the package from a hook or post.
In accordance with another aspect of the present invention, there is provided a method and apparatus for making and filling the reclosable package 10. The method and apparatus are illustrated in FIGS. 5, 6, 7, 8, and 9. Referring first to FIG.
5, a core 50 supplies a web 52 of plastic material. A folder 53 folds the web 52 to provide first and second opposing panels 12 and 14 joined along a bottom 20 having one or more fold lines. The folder 53 optionally includes a gusset point 54 that creates a gusset 22. The folded web 52 is conveyed between a pair of rollers 56 that bring the first and second panels 12 and 14 is close proximity to each other. A spool 58 supplies a reclosable fastener 23 having the structure discussed above. The fastener 23 is fed between the upper portions of the first and second panels 12 and 14.
A sealer 60 seals the first fin 30 (see FIGS. 1 and 2) to the first panel 12 in the machine direction, i.e., the direction of movement of the web 52. The sealer 60 may be a stationary convective (hot air) sealer that does not contact the web 52, a reciprocating heated bar sealer that intermittently contacts the web 52, or a band sealer comprising a heated band that moves with the web 52 until the seal is made. The first sealant ribs 36 (see FIGS. 1 and 2) on the outer surface of the first fin 30 facilitate this attachment between the first fin 30 and the first panel 12. At this time, the second fin 34 remains disconnected from the second panel 14. Another reciprocating heated bar sealer 62 seals the first and second panels 12 and 14 to each other in the transverse direction. The side seals 16 are generated by the sealer 62 at bag width distances apart to create individual packages 10. If the bottom 20 includes a gusset 22, a heated bar sealer creates a pair of angle seals 66 (FIG. 1 ) along the gusset 22 on opposite sides of each side seal 16. The first and second panels 12 and 14 are attached to each other at the angle seals 66.
Referring back to FIGS. 1 and 2, if the packages 10 are provided with respective sliders 42, the sliders 42 are mounted to the fastener 23 at bag width distances apart either before the fastener 23 is attached to the web 52 or after the fastener 23 is attached to the web 52. To stop movement of the slider 42 near the sides 16 of each package 10, a pair of end terminations 44 and 46 are mounted to the fastener 23 on opposite sides of each side seal 16.
The sliders 42 may be installed using various techniques. For example, the slider 42 may have hinged wings that fold and snap permanently in place to attach the slider 42 to the fastener 23. Further details concerning such a hinged slider may be obtained from U.S. Patent Nos_ 5,010,627, 5,063,644, and 5,070,583 to Herrington.
In an alternative embodiment, the slider 42 may have a pair of side walls that are temporarily flexed away from each other as the slider 42 is mounted on the fastener 23 and then returned to their original position after the slider 42 is mounted.
In another alternative embodiment, prior to the formation of the side seals, the fastener 23 is cut apart at a location where a side seal is to be generated, the ends formed by the cutter are moved laterally relative to each other to expose the ends, and the slider 42 is threaded onto one of the exposed ends. Further details concerning this technique of inserting a slider through a split fastener may be obtained from U.S. Patent No. 5,431,760 to Donovan. In yet another alternative embodiment, prior to the formation of the side seals, the fastener 23 is notched at a location where a side seal is to be generated and the slider 42 is threaded onto the fastener 23 via the notch. The notch is sized to accommodate the slider 42. Further details concerning this technique of inserting a slider onto a notched fastener may be obtained from U.S. Patent 6,286,189 to Provan et al. entitled "Zipper and Zipper Arrangements and Methods of Manufacturing the Same".
After forming the side seals 16 and installing such optional components as a slider 42 and end terminations 44 and 46, a cutter separates the packages 10 from each other at the side seals 16. Each package 10 is then placed beneath a fill tube having a spout that is inserted into a fill opening between the second fin 34 and the second panel 14 (see FIGS
I and 2). The fill tube conveys a predetermined amount of product to the interior of the package 10. The gusset 22 expands in response to filling the package 10 with the product.
FIG. 6 illustrates a method and apparatus for sealing the filled packages 10 so that they are ready for shipment to and display at a store. The apparatus includes a pair of spaced, profiled guides 72, a pair of moving members 74, a reciprocating heated bar sealer 76, and a stationary backing plate 82. The profiled guides 72 are shaped in cross-section to support each package by either the fastener 23, the slider 42, and/or the end A
terminations 44 and 46. As best shown in FIG. 7, the illustrated guides 72 include respective first steps 78 for engaging the respective lower shoulders of the slider 42 and respective second steps 80 for engaging the lower sides of the end terminations 44 and 46. The opposing inner vertical faces of the guides 72 below the second steps 80 are spaced sufficiently apart to allow the fins 30 and 34 to fit therebetween, but sufficiently close to minimize the amount of air in the package head space above the product in the filled package. Each filled package 10 may be manually placed between the guides 72 or automatically fed into the guides 72 by conventional conveying equipment. The guides 72 are preferably made of a low-friction, rigid material such as hard anodized aluminum or ultra high density polyethylene.
The moving members 74 are disposed on opposite sides of the package 10 beneath the respective guides 72. The moving members 74 continuously or intermittently convey the packages 10 supported by the guides 72 to the sealer 76. Each moving member 74 is TM
preferably a Teflon-coated glass-cloth belt encompassing a pair of spaced pulleys. As shown in FIGS. 6 and 8, the reciprocating heated bar sealer 76 is disposed within one of the conveyor belts, while the backing plate 82 is disposed within the other of the conveyor belts. When a package 10 is disposed between the sealer 76 and the backing plate 82, the sealer 76 presses the package 10 against the backing plate 82 (with the belts disposed therebetween) to attach the second fin 34 to the second panel 14 in the region between the sides 16, thereby sealing the fill opening of the filled package 10 (see FIG. 8). The backing plate 82 is optionally cooled with chilled water or cool air as such pressure is applied by the sealer 76. Additional cooling bars are optionally located within the moving members 74 downstream from the sealer 76 and the backing plate 82. Instead of the heated bar sealer 76, the apparatus for sealing the filled packages may include a heated band of metal, such as steel, lining the inner surface of the belt of each moving member 7 4 and moving with the belt. The heated bands inside the respective belts seal the second fin 34 to the second panel 14 as the belts convey the associated package 10 through the guides 72. Once the fill opening is sealed, the package 10 is ready for shipment to and display at a store. The fully sealed package 10 is shown in FIG. 9 The package I 0 may be composed of various plastic polymers, copolymers, coextrusions andlor laminations. The panels 12 and 14 are preferably comprised of mono-layer or multi-layer combinations of polyethylene (high, medium, low, linear low, and/or ultra low density polymers including metallocene); polypropylene (oriented and/or biaxially oriented); ethylene vinyl acetate; nylon (oriented and/or biaxially oriented);
polyethylene terephthalate (oriented and/or biaxially oriented); polyvinyl chloride;
ethylene vinyl alcohol (EVOH); polyvinylidene chloride (PVDC); polyvinyl alcohol (PVOH); polystyrene; foil and/or metalization; and paper. The slider 42 and end terminations 44 and 46 are preferably comprised of mono-material, blends, alloys, and/or co-polymers of: polyethylene (high, medium, low, linear low, and/or ultra low density polymers); polypropylene (oriented and/or biaxially oriented); ethylene vinyl acetate;
nylon (oriented and/or biaxially oriented); thermoplastic polyesters;
polycarbonate;
acrylics; and/or polystyrene. The profiles 12 and 14 and the fins 30 and 34 are preferably comprised of mono-layer, blends, alloys, coextrusions, laminations and/or coatings of:
polyethylene (high, medium, low, linear low, and/or ultra low density polymers including metallocene); polypropylene (oriented and/or biaxially oriented); ethylene vinyl acetate;
nylon (oriented and/or biaxially oriented); polyethylene terephthalate (oriented and/or biaxially oriented); polyvinyl chloride; ethylene vinyl alcohol (EVOH);
polyvinylidene chloride (PVDC); polyvinyl alcohol (PVOH); polystyrene; foil and/or metalization; and paper. The sealant ribs 36 and 38 are preferably comprised of mono-material, blends, and/or coextrusions o~ polyethylene (low, linear low, and/or ultra low density polymers including metallocene); ethylene vinyl acetate, adhesive or low melting temperature sealant.
While the present invention has been described with reference to one or more particular embodiments, those skilled in the art will recognize that many changes may be made thereto without departing from the spirit and scope of the present invention. Each of these embodiments and obvious variations thereof is contemplated as falling within the spirit and scope of the claimed invention, which is set forth in the following claims.
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Claims (82)
1. A fill-through-the-top reclosable package comprising:
first and second opposing body panels joined to each other along a pair of sides and a bottom bridging the pair of sides; and a reclosable fastener extending along a package top disposed opposite the bottom, the fastener including first and second opposing tracks, the first track including a male profile, the second track including a female profile adapted to releasably interlock with the male profile, the first and second tracks being joined to each other along an area of weakness, the first track being connected to the first panel along the package top between the sides;
wherein while the first track is connected to the first panel along the package top between the sides, the second track is only partially connected to the second panel along the package top and is free of connection to the second panel along at least a section of the package top between the sides so as to create a fill opening between the second track and the second panel, the fill opening allowing the package to be filled with a product through the package top.
first and second opposing body panels joined to each other along a pair of sides and a bottom bridging the pair of sides; and a reclosable fastener extending along a package top disposed opposite the bottom, the fastener including first and second opposing tracks, the first track including a male profile, the second track including a female profile adapted to releasably interlock with the male profile, the first and second tracks being joined to each other along an area of weakness, the first track being connected to the first panel along the package top between the sides;
wherein while the first track is connected to the first panel along the package top between the sides, the second track is only partially connected to the second panel along the package top and is free of connection to the second panel along at least a section of the package top between the sides so as to create a fill opening between the second track and the second panel, the fill opening allowing the package to be filled with a product through the package top.
2. The package of claim 1, wherein the bottom includes a gusset that expands in response to filling the package with the product.
3. The package of claim 1, further including a slider mounted to the fastener for opening and closing the fastener in response to movement therealong.
4. The package of claim 3, wherein the fastener is free of pull flanges extending upwardly from the male and female profiles.
5. The package of claim 1, wherein the area of weakness is selected from the group consisting of a scored line, a perforated line, and a thinned die line.
6. The package of claim 1, wherein the first track includes a plurality of first sealant ribs on an outer surface of the first track to facilitate connecting the first track to the first panel, and the second track includes a plurality of second sealant ribs on an outer surface of the second track to facilitate connecting the second track to the second panel.
7. The package of claim 1, wherein the second track is connected to the second panel only along the sides.
8. The package of claim 1, wherein the first and second tracks include respective first and second fins extending downward from the respective male and female profiles, the first and second fins being joined to each other along the area of weakness to effectively create a single fin comprised of the first and second fins.
9. A method of making a reclosable package, comprising:
supplying a web of plastic material;
supplying a reclosable fastener including first and second opposing tracks, the first track including a male profile, the second track including a female profile adapted to releasably interlock with the male profile, the first and second tracks being joined to each other along an area of weakness;
folding the web to provide first and second opposing panels;
attaching the first track to the first panel;
sealing the web such that the first and second panels are joined to each other along a pair of sides and a bottom bridging the pair of sides;
filling the package with a product via a fill opening between the second track and the second panel; and attaching the second track to the second panel to seal the fill opening.
supplying a web of plastic material;
supplying a reclosable fastener including first and second opposing tracks, the first track including a male profile, the second track including a female profile adapted to releasably interlock with the male profile, the first and second tracks being joined to each other along an area of weakness;
folding the web to provide first and second opposing panels;
attaching the first track to the first panel;
sealing the web such that the first and second panels are joined to each other along a pair of sides and a bottom bridging the pair of sides;
filling the package with a product via a fill opening between the second track and the second panel; and attaching the second track to the second panel to seal the fill opening.
10. The method of claim 9, wherein the bottom includes a gusset that expands in response to filling the package with the product.
11. The method of claim 9, further including the steps of supplying a slider for opening and closing the fastener in response to movement therealong and mounting the slider to the fastener.
12. The method of claim 11, wherein the fastener is free of pull flanges extending upwardly from the male and female profiles.
13. The method of claim 9, wherein the area of weakness is selected from the group consisting of a scored line, a perforated line, a thinned die line, and a tear strip.
14. The method of claim 9, wherein the step of attaching the first track to the first panel occurs after the step of folding the web and prior to the step of sealing the web.
15. The method of claim 9, wherein the step of folding the web provides a fold line along the bottom, and wherein the step of sealing the web provides seals along the sides.
16. The method of claim 9, further including the step of separating the package from a remainder of the web.
17. The method of claim 11, further including the steps of supplying a pair of end terminations for stopping movement of the slider near the respective sides of the package and mounting the end terminations to the fastener near the respective sides of the package.
18. The method of claim 9, wherein the first track includes a plurality of first sealant ribs on an outer surface of the first track to facilitate the step of attaching the first track to the first panel, and wherein the second track includes a plurality of second sealant ribs on an outer surface of the second track to facilitate the step of attaching the second track to the second panel.
19. The method of claim 9, wherein the step of supplying a reclosable fastener includes providing the first and second tracks with respective first and second fins extending downward from the respective male and female profiles, the first and second fins being joined to each other along the area of weakness to effectively create a single fin comprised of the first and second fins.
20. A method of making a reclosable package, comprising:
supplying a web of plastic material in a longitudinal direction;
supplying a reclosable fastener including first and second opposing tracks, the first track including a male profile, the second track including a female profile adapted to releasably interlock with the male profile;
folding the web along one or more longitudinal folds to provide first and second opposing panels, the longitudinal folds creating a bottom of the package;
attaching the first track to the first panel;
sealing the web along a pair of sides, the bottom bridging the pair of sides;
filling the package with a product via a fill opening between the second track and the second panel; and attaching the second track to the second panel to seal the fill opening.
supplying a web of plastic material in a longitudinal direction;
supplying a reclosable fastener including first and second opposing tracks, the first track including a male profile, the second track including a female profile adapted to releasably interlock with the male profile;
folding the web along one or more longitudinal folds to provide first and second opposing panels, the longitudinal folds creating a bottom of the package;
attaching the first track to the first panel;
sealing the web along a pair of sides, the bottom bridging the pair of sides;
filling the package with a product via a fill opening between the second track and the second panel; and attaching the second track to the second panel to seal the fill opening.
21. The method of claim 20, wherein the bottom includes a gusset that expands in response to filling the package with the product.
22. The method of claim 20, further including the steps of supplying a slider for opening and closing the fastener in response to movement therealong and mounting the slider to the fastener.
23. The method of claim 22, wherein the fastener is free of pull flanges extending upwardly from the male and female profiles.
24. The method of claim 20, wherein the step of attaching the first track to the first panel occurs after the step of folding the web and prior to the step of sealing the web.
25. The method of claim 20, further including the step of separating the package from a remainder of the web.
26. The method of claim 22, further including the steps of supplying a pair of end terminations for stopping movement of the slider near the respective sides of the package and mounting the end terminations to the fastener near the respective sides of the package.
27. The method of claim 20, wherein the first track includes a plurality of first sealant ribs on an outer surface of the first track to facilitate the step of attaching the first track to the first panel, and wherein the second track includes a plurality of second sealant ribs on an outer surface of the second track to facilitate the step of attaching the second track to the second panel.
28. The method of claim 20, wherein the step of supplying a reclosable fastener includes providing the first and second tracks with respective first and second fins extending downward from the respective male and female profiles, the first and second fins being joined to each other along an area of weakness to effectively create a single fin comprised of the first and second fins
29. An apparatus for making a reclosable package from a web of plastic material and a reclosable fastener, the reclosable fastener including first and second opposing tracks, the first track including a male profile, the second track including a female profile adapted to interlock with the male profile, the first and second tracks being joined to each other along an area of weakness, the apparatus comprising:
means for folding the web to provide first and second opposing panels;
means for attaching the first track to the first panel;
means for sealing the web such that the first and second panels are joined to each other along a pair of sides and a bottom bridging the pair of sides;
means for filling the package with a product via a fill opening between the second track and the second panel; and means for attaching the second track to the second panel to seal the fill opening.
means for folding the web to provide first and second opposing panels;
means for attaching the first track to the first panel;
means for sealing the web such that the first and second panels are joined to each other along a pair of sides and a bottom bridging the pair of sides;
means for filling the package with a product via a fill opening between the second track and the second panel; and means for attaching the second track to the second panel to seal the fill opening.
30. The apparatus of claim 29, further including means for mounting a slider to the fastener, the slider being adapted to open and close the fastener in response to movement therealong.
31. The apparatus of claim 29, wherein the means for attaching the first track to the first panel is downstream relative to the means for folding the web and upstream relative to the means for sealing the web.
32. The apparatus of claim 29, wherein the means for folding the web provides a fold line along the bottom, and wherein the means for sealing the web provides seals along the sides.
33. The apparatus of claim 29, further including means for separating the package from a remainder of the web.
34. The apparatus of claim 30, further including means for mounting a pair of end terminations to the fastener near the respective sides of the package, the end terminations being adapted to stop movement of the slider near the respective sides of the package.
35. An apparatus for making a reclosable package from a web of plastic material and a reclosable fastener, the reclosable fastener including first and second opposing tracks, the first track including a male profile, the second track including a female profile adapted to interlock with the male profile, the apparatus comprising:
means for folding the web along one or more folds to provide first and second opposing panels, the folds creating a bottom of the package;
means for attaching the first track to the first panel;
means for sealing the web along a pair of sides, the bottom bridging the pair of sides;
means for filling the package with a product via a fill opening between the second track and the second panel; and means for attaching the second track to the second panel to seal the fill opening.
means for folding the web along one or more folds to provide first and second opposing panels, the folds creating a bottom of the package;
means for attaching the first track to the first panel;
means for sealing the web along a pair of sides, the bottom bridging the pair of sides;
means for filling the package with a product via a fill opening between the second track and the second panel; and means for attaching the second track to the second panel to seal the fill opening.
36. The apparatus of claim 35, further including means for mounting a slider to the fastener, the slider being adapted to open and close the fastener in response to movement therealong.
37. The apparatus of claim 35, wherein the means for attaching the first track to the first panel is downstream relative to the means for folding the web and upstream relative to the means for sealing the web.
38. The apparatus of claim 35, further including means for separating the package from a remainder of the web.
39. The apparatus of claim 36, further including means for mounting a pair of end terminations to the fastener near the respective sides of the package, the end terminations being adapted to stop movement of the slider near the respective sides of the package.
40. A method of filling a package, made from a continuous web of material comprising:
providing a plurality of interconnected packages made from said web, each package including first and second opposing body panels joined along a pair of sides and a bottom bridging said sides, said package including a fastener attached to said first body panel along a mouth portion of said package disposed opposite said bottom, said fastener including first and second interlocking profiles, and first and second fins extending from said respective profiles, said first fin being attached to said first body panel, said second fin being at least partially unattached to said second body panel while said first fin is attached to said first body panel, said package further including a tamper-evident feature positioned below said first and second interlocking profiles;
separating each package from said plurality of interconnected packages;
filling said separated package with a product via a fill opening between said fastener and said second body panel; and attaching said fastener to said second body panel of said filled package to seal said fill opening.
providing a plurality of interconnected packages made from said web, each package including first and second opposing body panels joined along a pair of sides and a bottom bridging said sides, said package including a fastener attached to said first body panel along a mouth portion of said package disposed opposite said bottom, said fastener including first and second interlocking profiles, and first and second fins extending from said respective profiles, said first fin being attached to said first body panel, said second fin being at least partially unattached to said second body panel while said first fin is attached to said first body panel, said package further including a tamper-evident feature positioned below said first and second interlocking profiles;
separating each package from said plurality of interconnected packages;
filling said separated package with a product via a fill opening between said fastener and said second body panel; and attaching said fastener to said second body panel of said filled package to seal said fill opening.
41. The method of claim 40, wherein said fill opening for filling said package is between said second fin and said second body panel.
42. The method of claim 41, wherein said attaching said fastener to said second body panel includes attaching said second fin to said second body panel.
43. The method of claim 40, further including sealing said first and second body panels above said fastener.
44. The method of claim 40, wherein said tamper-evident feature is a breakable area of weakness on at least one of said first and second fins.
45. A method of filling a package made from a continuous web of material, comprising:
attaching a reclosable fastener with an attached slider to a web, said reclosable fastener including a first profile and a second profile adapted to releasably interlock with said first profile, said first profile being attached to said web, said slider for opening and closing said first and second profiles;
creating individual reclosable packages from said web and said recloseable fastener;
filling each of said individual packages with a product via a fill opening between said second profile and said web; and attaching said second profile to said second panel to seal said fill opening in said individual packages.
attaching a reclosable fastener with an attached slider to a web, said reclosable fastener including a first profile and a second profile adapted to releasably interlock with said first profile, said first profile being attached to said web, said slider for opening and closing said first and second profiles;
creating individual reclosable packages from said web and said recloseable fastener;
filling each of said individual packages with a product via a fill opening between said second profile and said web; and attaching said second profile to said second panel to seal said fill opening in said individual packages.
46. The method of claim 45, wherein said web includes first and second body panels, and said method including sealing said first and second body panels above said fastener.
47. The method of claim 46, wherein said package further includes a tamper-evident feature below said first and second profiles.
48. The method of claim 47, wherein said tamper-evident feature is a breakable area of weakness on at least one of a pair of fins attached to said first and second profiles.
49. The method of claim 45, wherein said package further includes a tamper-evident feature below said first and second profiles.
50. The method of claim 45, further including creating a pair of end terminations for stopping movement of said slider near respective sides of said package.
51. The method of claim 50, wherein said web includes first and second body panels, and further including sealing said first and second body panels above said fastener.
52. The method of claim 45, wherein said plurality of interconnected packages includes a bottom disposed opposite of said fill opening, further including folding said web to form said bottom and said first and second panels.
53. The method of claim 45, wherein said first fin is attached to said first body panel along an entire length of said package during said filling step.
54. A method of making and filling a package, comprising:
forming the package from first and second opposing body panels joined along a pair of sides and a bottom bridging the sides, the first body panel including a fastener attached to the first body panel along a mouth portion of the package disposed opposite the bottom, the fastener including a pair of tracks joined to each other along a breakable area of weakness, the fastener initially being at least partially unattached to the second body panel while the fastener is attached to the first body panel;
filling the package with a product via a fill opening between the fastener and the second body panel; and attaching the fastener to the second body panel to seal the fill opening.
forming the package from first and second opposing body panels joined along a pair of sides and a bottom bridging the sides, the first body panel including a fastener attached to the first body panel along a mouth portion of the package disposed opposite the bottom, the fastener including a pair of tracks joined to each other along a breakable area of weakness, the fastener initially being at least partially unattached to the second body panel while the fastener is attached to the first body panel;
filling the package with a product via a fill opening between the fastener and the second body panel; and attaching the fastener to the second body panel to seal the fill opening.
55. The method of claim 54, wherein the fastener includes first and second interlocking profiles and first and second fins extending from the respective profiles, the first and second fins being joined along the breakable area of weakness, the first fin being attached to the first body panel, the second fin being at least partially unattached to the second body panel while the fastener is attached to the first body panel.
56. The method of claim 55, wherein the fill opening in the step of filling the package is between the second fin and the second body panel.
57. The method of claim 56, wherein the step of attaching the fastener to the second body panel includes attaching the second fin to the second body panel.
58. A method of making and filling a package, comprising:
forming the package from first and second opposing body panels joined along a pair of sides and a bottom bridging the sides;
attaching a fastener to the first body panel along a mouth portion of the package disposed opposite the bottom, the fastener including a pair of tracks joined to each other along a breakable area of weakness;
filling the package with a product via a fill opening between the fastener and the second body panel; and attaching the fastener to the second body panel to seal the fill opening.
forming the package from first and second opposing body panels joined along a pair of sides and a bottom bridging the sides;
attaching a fastener to the first body panel along a mouth portion of the package disposed opposite the bottom, the fastener including a pair of tracks joined to each other along a breakable area of weakness;
filling the package with a product via a fill opening between the fastener and the second body panel; and attaching the fastener to the second body panel to seal the fill opening.
59. The method of claim 58, wherein the fastener includes first and second interlocking profiles and first and second fins extending from the respective profiles, the fill opening in the step of filling the package being between the second fin and the second body panel, wherein the step of attaching the fastener to the first body panel includes attaching the first fin to the first body panel, and wherein the step of attaching the fastener to the second body panel includes attaching the second fin to the second body panel.
60. The method of claim 59, wherein the first and second fins are joined to each other along the breakable area of weakness.
61. An apparatus for sealing a package filled with a product, the package including a fastener arrangement along its mouth end, the apparatus comprising:
a pair of spaced, profiled guides supporting the package by the fastener arrangement; and a sealer for sealing a portion of the fastener arrangement to the mouth end of the package, the sealer being beneath at least one of the profiled guides and alongside the portion of the fastener arrangement.
a pair of spaced, profiled guides supporting the package by the fastener arrangement; and a sealer for sealing a portion of the fastener arrangement to the mouth end of the package, the sealer being beneath at least one of the profiled guides and alongside the portion of the fastener arrangement.
62. The apparatus of claim 61, wherein the fastener arrangement includes a fastener and a slider slidably mounted to the fastener, each of the profiled guides including an upper step supporting the package by the slider.
63. The apparatus of claim 62, wherein the fastener arrangement includes a pair of end terminations mounted to respective opposing ends of the fastener, each of the profiled guides including a lower step supporting the package by the end terminations.
64. The apparatus of claim 63, wherein the upper step of each profiled guide is located outwardly and above the respective lower step.
65. The apparatus of claim 61, further including a pair of moving members engaging opposite sides of the package and conveying the package through the profiled guides, the moving members being positioned beneath the respective guides.
66. The apparatus of claim 65, wherein each of the moving members includes a conveyor belt.
67. The apparatus of claim 65, wherein the sealer is located proximate one of the moving members such that the one of the moving members is between the package and the sealer.
68. The apparatus of claim 66, wherein the sealer includes a heated band of metal lining an inner surface of the conveyor belt of at least one of the moving members and moving with the conveyor belt.
69. The apparatus of claim 66, wherein the sealer includes a reciprocating heated bar disposed within the conveyor belt of one of the moving members.
70. An apparatus for sealing a package filled with a product, the package including a fastener arrangement along its mouth end, the apparatus comprising:
means for supporting the package by the fastener arrangement; and means, located beneath the supporting means, for sealing a band-like portion of the fastener arrangement to the mouth end of the package.
means for supporting the package by the fastener arrangement; and means, located beneath the supporting means, for sealing a band-like portion of the fastener arrangement to the mouth end of the package.
71. The apparatus of claim 70, wherein the fastener arrangement includes a fastener and a slider slidably mounted to the fastener, the supporting means including means for supporting the package by the slider.
72. The apparatus of claim 70, wherein the fastener arrangement includes a fastener, a slider slidably mounted to the fastener, and a pair of end terminations at opposite ends of the fastener, the supporting means including means for supporting the package by the end terminations.
73. The apparatus of claim 70, further including means for engaging the package and moving the package through the supporting means.
74. The apparatus of claim 73, wherein the engaging means is located beneath the supporting means and proximate the sealing means.
75. A method of making and filling packages, comprising:
providing a plastic web and a fastener in a longitudinal direction;
folding the web to provide first and second opposing panels joined along a longitudinal bottom;
attaching the fastener to an inner surface of the first panel near a longitudinal edge thereof opposite the longitudinal bottom;
sealing the first and second panels to each other at spaced seals transverse to the longitudinal direction to form the packages;
filling each package with a product via a fill opening between the fastener and the second panel; and attaching the fastener to an inner surface of the second panel to seal the fill opening.
providing a plastic web and a fastener in a longitudinal direction;
folding the web to provide first and second opposing panels joined along a longitudinal bottom;
attaching the fastener to an inner surface of the first panel near a longitudinal edge thereof opposite the longitudinal bottom;
sealing the first and second panels to each other at spaced seals transverse to the longitudinal direction to form the packages;
filling each package with a product via a fill opening between the fastener and the second panel; and attaching the fastener to an inner surface of the second panel to seal the fill opening.
76. The method of claim 75, wherein said bottom includes a gusset.
77. A method of filling a package, comprising:
providing a package including two panels defining a mouth portion and a reclosable fastener that is useful for opening and closing said mouth portion after said package is filled, said fastener having a final attachment position on said two panels and being attached to said two panels along only a portion of said final attachment position so as to define a fill opening;
filling said package with a product through said fill opening; and attaching said fastener to said panels along the entirety of said final attachment position.
providing a package including two panels defining a mouth portion and a reclosable fastener that is useful for opening and closing said mouth portion after said package is filled, said fastener having a final attachment position on said two panels and being attached to said two panels along only a portion of said final attachment position so as to define a fill opening;
filling said package with a product through said fill opening; and attaching said fastener to said panels along the entirety of said final attachment position.
78. The method of claim 77, wherein said package includes a bottom with a gusset.
79. The method of claim 77, wherein said fastener includes a first interlocking profile with a first fin and second interlocking profile with a second fin.
80. The method of claim 79, wherein said first and second fins are joined along a breakable area of weakness.
81. The method of claim 79, wherein, during said providing step, said first fin is attached to a first one of said two panels along said final attachment position and said second fin is at least partially unattached to a second one of said two panels along said final attachment position, said second fin and said second panel defining said fill opening.
82. The method of claim 8p, wherein said second fin is entirely unattached to said second one of said two body panels along said final attachment position.
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US09/373,312 | 1999-08-12 | ||
PCT/US2000/020992 WO2001012516A1 (en) | 1999-08-12 | 2000-08-02 | Fill-through-the-top package and method and apparatus for making same |
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CA2348977C true CA2348977C (en) | 2006-01-10 |
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EP (2) | EP2380819A1 (en) |
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-
1999
- 1999-08-12 US US09/373,312 patent/US6071011A/en not_active Expired - Lifetime
- 1999-10-21 US US09/422,510 patent/US6279298B1/en not_active Ceased
- 1999-12-17 US US09/466,617 patent/US6148588A/en not_active Expired - Lifetime
-
2000
- 2000-08-02 AU AU68922/00A patent/AU6892200A/en not_active Abandoned
- 2000-08-02 WO PCT/US2000/020992 patent/WO2001012516A1/en active Application Filing
- 2000-08-02 ES ES00957279.3T patent/ES2368132T5/en not_active Expired - Lifetime
- 2000-08-02 AT AT00957279T patent/ATE513753T1/en not_active IP Right Cessation
- 2000-08-02 EP EP10183436A patent/EP2380819A1/en not_active Withdrawn
- 2000-08-02 IL IL14282900A patent/IL142829A0/en unknown
- 2000-08-02 CA CA002348977A patent/CA2348977C/en not_active Expired - Lifetime
- 2000-08-02 EP EP20000957279 patent/EP1180087B2/en not_active Expired - Lifetime
-
2003
- 2003-08-25 US US10/647,819 patent/USRE39505E1/en not_active Expired - Lifetime
-
2006
- 2006-11-01 US US11/591,408 patent/USRE40284E1/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP1180087A1 (en) | 2002-02-20 |
ES2368132T3 (en) | 2011-11-14 |
CA2348977A1 (en) | 2001-02-22 |
US6279298B1 (en) | 2001-08-28 |
AU6892200A (en) | 2001-03-13 |
USRE39505E1 (en) | 2007-03-13 |
WO2001012516A1 (en) | 2001-02-22 |
USRE40284E1 (en) | 2008-05-06 |
EP1180087A4 (en) | 2005-03-16 |
US6148588A (en) | 2000-11-21 |
ATE513753T1 (en) | 2011-07-15 |
EP2380819A1 (en) | 2011-10-26 |
EP1180087B2 (en) | 2015-04-22 |
US6071011A (en) | 2000-06-06 |
IL142829A0 (en) | 2002-03-10 |
EP1180087B1 (en) | 2011-06-22 |
ES2368132T5 (en) | 2015-08-20 |
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