EP1003678A1 - Kunststoffbeutel mit flachem boden - Google Patents

Kunststoffbeutel mit flachem boden

Info

Publication number
EP1003678A1
EP1003678A1 EP99927147A EP99927147A EP1003678A1 EP 1003678 A1 EP1003678 A1 EP 1003678A1 EP 99927147 A EP99927147 A EP 99927147A EP 99927147 A EP99927147 A EP 99927147A EP 1003678 A1 EP1003678 A1 EP 1003678A1
Authority
EP
European Patent Office
Prior art keywords
bag
plastic film
panel
double
plastic
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.)
Withdrawn
Application number
EP99927147A
Other languages
English (en)
French (fr)
Other versions
EP1003678A4 (de
Inventor
Robert B. Dematteis
Donald Pansier
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Scientific Packaging
Original Assignee
Scientific Packaging
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from US09/257,848 external-priority patent/US6319184B1/en
Priority claimed from US09/257,843 external-priority patent/US6186933B1/en
Priority claimed from US09/258,010 external-priority patent/US6171226B1/en
Priority claimed from US09/258,033 external-priority patent/US6113269A/en
Priority claimed from US09/257,361 external-priority patent/US6095687A/en
Application filed by Scientific Packaging filed Critical Scientific Packaging
Publication of EP1003678A1 publication Critical patent/EP1003678A1/de
Publication of EP1003678A4 publication Critical patent/EP1003678A4/de
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • B65D31/00—Bags or like containers made of paper and having structural provision for thickness of contents
    • B65D31/10—Bags or like containers made of paper and having structural provision for thickness of contents with gusseted sides
    • 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
    • B29C65/002—Joining methods not otherwise provided for
    • B29C65/004—Cold joining
    • 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
    • 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
    • B29C65/76—Making non-permanent or releasable joints
    • 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
    • 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
    • B29C66/432—Joining a relatively small portion of the surface of said articles for making tubular articles or closed loops, e.g. by joining several sheets ; for making hollow articles or hollow preforms
    • B29C66/4322—Joining a relatively small portion of the surface of said articles for making tubular articles or closed loops, e.g. by joining several sheets ; for making hollow articles or hollow preforms by joining a single sheet to itself
    • 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
    • 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
    • B29C66/81427—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 comprising a single ridge, e.g. for making a weakening line; comprising a single tooth
    • 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
    • B29C66/832—Reciprocating joining or pressing tools
    • B29C66/8322—Joining or pressing tools reciprocating along one axis
    • 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
    • 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
    • B29C66/13—Single flanged joints; Fin-type joints; Single hem joints; Edge joints; Interpenetrating fingered joints; Other specific particular designs of joint cross-sections not provided for in groups B29C66/11 - B29C66/12
    • B29C66/137—Beaded-edge joints or bead seals
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/20—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines
    • B29C66/23—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being multiple and parallel or being in the form of tessellations
    • B29C66/232—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being multiple and parallel or being in the form of tessellations said joint lines being multiple and parallel, i.e. the joint being formed by several parallel joint lines
    • 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
    • B29C66/43129—Joining the articles to themselves for making flat seams in tubular or hollow articles, e.g. transversal seams said flat seams being transversal but non-orthogonal with respect to the tubular or hollow articles, i.e. oblique
    • 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
    • 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
    • B29C66/81421—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 convex or concave
    • B29C66/81422—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 convex or concave being convex
    • 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
    • B29C66/84—Specific machine types or machines suitable for specific applications
    • B29C66/843—Machines for making separate joints at the same time in different planes; Machines for making separate joints at the same time mounted in parallel or in series
    • B29C66/8432—Machines for making separate joints at the same time mounted in parallel or in series
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B2150/00—Flexible containers made from sheets or blanks, e.g. from flattened tubes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B2150/00—Flexible containers made from sheets or blanks, e.g. from flattened tubes
    • B31B2150/001—Flexible containers made from sheets or blanks, e.g. from flattened tubes with square or cross bottom
    • B31B2150/0012—Flexible containers made from sheets or blanks, e.g. from flattened tubes with square or cross bottom having their openings facing in the direction of movement
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B2150/00—Flexible containers made from sheets or blanks, e.g. from flattened tubes
    • B31B2150/003—Flexible containers made from sheets or blanks, e.g. from flattened tubes made from tubular sheets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B2160/00—Shape of flexible containers
    • B31B2160/10—Shape of flexible containers rectangular and flat, i.e. without structural provision for thickness of contents
    • B31B2160/106—Shape of flexible containers rectangular and flat, i.e. without structural provision for thickness of contents obtained from sheets cut from larger sheets or webs before finishing the bag forming operations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B2160/00—Shape of flexible containers
    • B31B2160/20—Shape of flexible containers with structural provision for thickness of contents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B2170/00—Construction of flexible containers

Definitions

  • Le Fleur et al US Patent 3,915,077 utilizes individual heat seals to form the "squared out" portion of the bag.
  • Fig. 13 is a partial plan view of another means of transferring the two side- by-side bag stacks to a conveyor.
  • Fig. 14 is a partial plan view of a means of transferring the two severed and sealed portions through a two-step die-cutting operation.
  • Fig. 15 is a plan view of a severed and sealed portion being die cut into two bag packs with die cut handles and a sculptured top made as made by the process of the present invention.
  • Each bag stack 132a, 132b, 132a' and 132b' has side gussets 136a and 138a, 136b and 138b, 136a' and 138a', and 136b' and 138b' respectively, and lateral seals 134, 136, 134' and 136' respectively, which lateral seals have formed bag bottoms 140a, 140b, 140a' and 140b'. From this die cut operation, the bag stacks 132a, 132b, 132a' and 132b' would be transported to a loading station. This illustration shows that two slit sealed tubes can be made into four bag packs during a single cycle of the bag machine's operation.
  • the die cutting operation has the tremendous flexibility of creating virtually any style of bag and is not limited to interconnected, detachable bags.
  • detachable bags in addition to detachable bags, it may form bags with flush tops and no handles, bags with die cut handles, bags with sculptured shoulders, bags with a multitude of tab designs, T-shirt style plastic grocery sacks and so on.
  • the continued process of the present invention will also eliminate the need or the extra labor required to tear apart interconnected detachable bags at a weakened tear line.
  • the process of the present invention may be applied to a tube that has been slit sealed into more than just two smaller tubes, for instance, three, four or even five tubes. In such a case, three, four or five tubes would then be converted into six, eight or ten individual bag stacks.
  • a variation on transporting the bag stacks is illustrated by four sets of fingers, which fingers 152a and 154a grasp bag stack 132a, fingers 152b and 154b grasp bag stack 132b, fingers 152a' and 154a' grasp bag stack 132a', and fingers 152b' and 154b' grasp bag stack 132b', all of which fingers and bags stacks are simultaneously transported to a packing station (not shown).
  • a packing station not shown
  • the bag stacks may be grasped by two sets of fingers in which each set grasps two stacks simultaneously.
  • the present invention is not intended to be limited by the means of bag stack transport.
  • the arrows then show the same two severed and sealed portions 162 and 162' as they have been subsequently transported (arrows) by fingers 175 a and 175b, and 175 a' and 175b' respectively, to an intermediate point at second die cutting station 174 in which knives 176 and 176' of die cutting station 174 have severed the two portions 162 and 162' at their respective bridges 173 and 173' (before severance) forming four individual bag stacks 162a, 162b, 162a' and 162b'.
  • This second die cutting operation is conducted near the bag packaging station, to which the bag stacks may be easily delivered by fingers to a conveyor belt or even dropped right upon the conveyor belt once severed.
  • the means of transporting the bag stacks from and to die cutter and packing station may be any number of already acceptable means such as clamping with fingers on carriages, paddlewheel transport, conveyor belts and so on.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bag Frames (AREA)
  • Making Paper Articles (AREA)
EP99927147A 1998-06-09 1999-06-01 Kunststoffbeutel mit flachem boden Withdrawn EP1003678A4 (de)

Applications Claiming Priority (27)

Application Number Priority Date Filing Date Title
US8861298P 1998-06-09 1998-06-09
US8861398P 1998-06-09 1998-06-09
US88612P 1998-06-09
US88613P 1998-06-09
US8958298P 1998-06-17 1998-06-17
US8958398P 1998-06-17 1998-06-17
US89583P 1998-06-17
US89582P 1998-06-17
US9223298P 1998-07-09 1998-07-09
US9223398P 1998-07-09 1998-07-09
US92233P 1998-07-09
US92232P 1998-07-09
US25734599A 1999-02-25 1999-02-25
US25801599A 1999-02-25 1999-02-25
US09/257,848 US6319184B1 (en) 1998-06-09 1999-02-25 Apparatus and process for producing cold seal in plastic bags
US257345 1999-02-25
US09/257,843 US6186933B1 (en) 1998-06-09 1999-02-25 Plastic bag manufacturing process
US09/258,010 US6171226B1 (en) 1998-06-09 1999-02-25 Plastic bag bundling system
US258033 1999-02-25
US09/258,033 US6113269A (en) 1998-06-09 1999-02-25 Automatic ventilating system for plastic bags
US258015 1999-02-25
US257843 1999-02-25
US09/257,361 US6095687A (en) 1998-06-09 1999-02-25 Flat bottomed plastic bag
US257361 1999-02-25
US258010 1999-02-25
US257848 1999-02-25
PCT/US1999/012195 WO1999064307A1 (en) 1998-06-09 1999-06-01 Flat bottomed plastic bag

Publications (2)

Publication Number Publication Date
EP1003678A1 true EP1003678A1 (de) 2000-05-31
EP1003678A4 EP1003678A4 (de) 2004-12-08

Family

ID=27584493

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99927147A Withdrawn EP1003678A4 (de) 1998-06-09 1999-06-01 Kunststoffbeutel mit flachem boden

Country Status (6)

Country Link
EP (1) EP1003678A4 (de)
AU (1) AU759885B2 (de)
CA (1) CA2304215C (de)
MX (1) MXPA00002426A (de)
NZ (1) NZ503254A (de)
WO (1) WO1999064307A1 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
MX2017011162A (es) 2015-03-18 2017-11-09 Kellog Co Bolsa erguida de fondo plano, sistema de llenado y sellado de modelo vertical y metodologia para utilizar el mismo.
CN109605825B (zh) * 2018-11-27 2024-05-07 东莞市亚森机械有限公司 气吹式纸袋开口装置

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2599567A (en) * 1944-12-28 1952-06-10 Plyfiber Container Company Bag bottom structure
US3292513A (en) * 1963-09-30 1966-12-20 Monsanto Chemicals Apparatus and method for scoring synthetic plastic sheet material
US3372625A (en) * 1965-05-24 1968-03-12 Dow Chemical Co External gusseting process
DE1436811A1 (de) * 1965-08-09 1968-11-14 Honsel Karl Heinz Verfahren zur Herstellung von vorzugsweise mehrlagigen Kreuzbodensaecken aus Papier,Kunststoff od.dgl.
DE1900337B2 (de) * 1969-01-04 1977-03-24 Sengewald, Karl-Heinz, Dr., 4802 Halle Verfahren zum herstellen von tragetaschen aus kunststoffolie
YU139471A (en) * 1970-06-11 1984-08-31 Jentsch Hans G Method of manufcturing bags from multifoil plastics
US3739977A (en) * 1971-06-22 1973-06-19 J Shapiro Plastic market bag
US3881580A (en) * 1973-05-14 1975-05-06 Mandel A Doppelt Carrying case
US3915077A (en) * 1974-11-27 1975-10-28 Lee Lafleur Bag forming apparatus
US4262581A (en) * 1979-05-04 1981-04-21 Kcl Corporation Method and apparatus for making printed gusset bags
ATE67977T1 (de) * 1985-11-08 1991-10-15 Minigrip Europe Gmbh Wiederverschliessbarer flexibler behaelter.
DE3614458A1 (de) * 1986-04-29 1987-11-05 Winkler Duennebier Kg Masch Verfahren und vorrichtung zum rillen
US4717262A (en) * 1987-01-09 1988-01-05 T.C. Manufacturing Company, Inc. Flat bottom plastic bag and method of making same
US5000728A (en) * 1987-06-12 1991-03-19 Lemo M. Lehmacher & Sohn Gmbh Maschinenfabrik Method of and apparatus for stacking bag segments
DE3725878A1 (de) * 1987-08-05 1989-02-16 Stiegler Maschf Gmbh Tragebeutel aus thermoplastischer kunststoffolie und verfahren zum herstellen von tragebeuteln
US5135464A (en) * 1990-05-02 1992-08-04 Jebco Packaging Systems, Inc. Method for manufacturing a container
DE69223743T2 (de) * 1991-05-29 1998-04-16 Sumitomo Bakelite Co. Ltd., Tokio/Tokyo Standbodenbeutel sowie verfahren und vorrichtung zu dessen herstellung
US5662575A (en) * 1991-10-16 1997-09-02 Kewpie Kabushiki Kaisha Method and apparatus for continuously forming bags
DE4310289C2 (de) * 1993-03-30 2001-12-13 Windmoeller & Hoelscher Vorrichtung zum Bilden der Falzlinien der Seitenschläge von aufgezogenen und kontinuierlich geförderten Kreuzböden bei der Sackherstellung

Also Published As

Publication number Publication date
AU4412399A (en) 1999-12-30
AU759885B2 (en) 2003-05-01
WO1999064307A1 (en) 1999-12-16
CA2304215A1 (en) 1999-12-16
MXPA00002426A (es) 2003-07-21
NZ503254A (en) 2002-09-27
EP1003678A4 (de) 2004-12-08
CA2304215C (en) 2007-10-02
WO1999064307A9 (en) 2000-07-20

Similar Documents

Publication Publication Date Title
US5957824A (en) Bags and method of making bags
US6609998B2 (en) Method and apparatus for fabricating double-ended closure bags and double compartment bags
CA2400035C (en) Gussetted plastic bag
US6319184B1 (en) Apparatus and process for producing cold seal in plastic bags
US6254521B1 (en) Apparatus for manufacture of a plastic bag with standup bottom wall
US6186933B1 (en) Plastic bag manufacturing process
US6669615B2 (en) Plastic film hinging and pre-creasing process
EP0173506B1 (de) Verfahren zum Herstellen eines Stapels von thermoplastischen Säcken
US6095687A (en) Flat bottomed plastic bag
US20180155084A1 (en) Flat Patch Bottom Self Opening Style Bag and Method of Manufacture
CA2304215C (en) Flat bottomed plastic bag
NZ515777A (en) Process for the manufacture of flat bottomed plastic bag
WO2017091504A1 (en) Bottom gusset package with folded gusset
EP4225654A1 (de) Bahnen aus gedämpften verschliessbaren beuteln
US20180155086A1 (en) Center Folded Bottom Self Opening Style Bag and Method of Manufacture
CA2170769C (en) Bags and method of making bags
CA2981787A1 (en) Flat patch bottom self opening style bag and method of manufacture
JPH05112365A (ja) 手提用底ガゼツト袋の製造方法及びその装置
CA1284969C (en) Thermoplastic bag, bag pack and method of making the same
CA2145352A1 (en) Thin film bag with gusseted rectangular bottom end
CA2981792A1 (en) Flat folded bottom self opening style bag and method of manufacture

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20000308

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

A4 Supplementary search report drawn up and despatched

Effective date: 20041025

RIC1 Information provided on ipc code assigned before grant

Ipc: 7B 31B 37/00 B

Ipc: 7B 29C 65/76 B

Ipc: 7B 29C 65/00 B

Ipc: 7B 29C 65/18 B

Ipc: 7B 65D 33/14 B

Ipc: 7B 65D 30/18 A

17Q First examination report despatched

Effective date: 20050203

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20050614