CA2884819C - Sacs a couches multiples avec couche interne raccourcie - Google Patents

Sacs a couches multiples avec couche interne raccourcie Download PDF

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Publication number
CA2884819C
CA2884819C CA2884819A CA2884819A CA2884819C CA 2884819 C CA2884819 C CA 2884819C CA 2884819 A CA2884819 A CA 2884819A CA 2884819 A CA2884819 A CA 2884819A CA 2884819 C CA2884819 C CA 2884819C
Authority
CA
Canada
Prior art keywords
bag
thermoplastic
thermoplastic bag
bonds
sidewalls
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.)
Active
Application number
CA2884819A
Other languages
English (en)
Other versions
CA2884819A1 (fr
Inventor
Michael G. Borchardt
Kyle R. Wilcoxen
Robert W. Fraser
Robert T. Dorsey
Shaun T. Broering
Jack A. Macpherson
Scott Binger
Kenneth E. Cisek
Theodore J. Fish
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.)
Glad Products Co
Original Assignee
Glad Products Co
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 US13/412,940 external-priority patent/US9050783B2/en
Application filed by Glad Products Co filed Critical Glad Products Co
Publication of CA2884819A1 publication Critical patent/CA2884819A1/fr
Application granted granted Critical
Publication of CA2884819C publication Critical patent/CA2884819C/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • B65D31/04—Bags or like containers made of paper and having structural provision for thickness of contents with multiple walls
    • 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
    • B65D33/28—Strings or strip-like closures, i.e. draw closures
    • 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
    • B31B2155/00—Flexible containers made from webs
    • 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
    • B31B2155/00—Flexible containers made from webs
    • B31B2155/001—Flexible containers made from webs by folding webs longitudinally
    • B31B2155/0014—Flexible containers made from webs by folding webs longitudinally having their openings facing transversally to 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
    • B31B2160/00—Shape of flexible containers
    • B31B2160/10—Shape of flexible containers rectangular and flat, i.e. without 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
    • B31B2170/20—Construction of flexible containers having multi-layered walls, e.g. laminated or lined
    • B31B2170/204—Construction of flexible containers having multi-layered walls, e.g. laminated or lined involving folding a web about an already tubular web
    • 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
    • B31B70/00—Making flexible containers, e.g. envelopes or bags
    • B31B70/001—Shaping, other than by folding, sheet material under pressure
    • 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
    • B31B70/00—Making flexible containers, e.g. envelopes or bags
    • B31B70/26—Folding sheets, blanks or webs
    • B31B70/262—Folding sheets, blanks or webs involving longitudinally folding, i.e. along a line parallel to 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
    • B31B70/00—Making flexible containers, e.g. envelopes or bags
    • B31B70/60—Uniting opposed surfaces or edges; Taping
    • B31B70/61—Uniting opposed surfaces or edges; Taping by applying or securing strips or tape
    • 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
    • B31B70/00—Making flexible containers, e.g. envelopes or bags
    • B31B70/74—Auxiliary operations
    • B31B70/81—Forming or attaching accessories, e.g. opening devices, closures or tear strings
    • B31B70/813—Applying closures
    • B31B70/8134—Applying strings; Making string-closed bags

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bag Frames (AREA)
  • Laminated Bodies (AREA)

Abstract

Sacs à couches multiples comprenant une couche ou un sac externe et une couche ou un sac interne qui est plus court(e) que la couche ou le sac externe. La couche ou le sac interne raccourci(e) peut s'étirer ou se dilater jusqu'à la couche ou jusqu'au sac externe lorsqu'il/elle est chargé(e) avec des objets ou sinon soumis(e) à une contrainte. De tels sacs à couches multiples peuvent permettre une réduction de la quantité de matière thermoplastique sans compromettre la résistance du sac à couches multiples. Selon divers modes de réalisation, la couche ou le sac interne peut être stratifié(e) de manière non continue, stratifiée de manière continue, ou joint(e) uniquement le long d'un ou plusieurs bords à la couche ou au sac externe. Des modes de réalisation comprenant des liaisons non continues fixant la couche ou le sac interne à la couche ou au sac externe peuvent fournir une résistance supplémentaire au sac. Des procédés de formation de sacs à couches multiples avec une couche interne raccourcie comprennent les étapes consistant à insérer une couche interne à l'intérieur d'une couche externe puis à joindre les couches pour former un sac.
CA2884819A 2012-03-06 2013-03-04 Sacs a couches multiples avec couche interne raccourcie Active CA2884819C (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US13/412,940 US9050783B2 (en) 2009-11-16 2012-03-06 Multi-layered bags with shortened inner layer
US13/412,940 2012-03-06
PCT/US2013/028882 WO2013134130A1 (fr) 2012-03-06 2013-03-04 Sacs à couches multiples avec couche interne raccourcie

Publications (2)

Publication Number Publication Date
CA2884819A1 CA2884819A1 (fr) 2013-09-12
CA2884819C true CA2884819C (fr) 2020-03-10

Family

ID=49117219

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2884819A Active CA2884819C (fr) 2012-03-06 2013-03-04 Sacs a couches multiples avec couche interne raccourcie

Country Status (2)

Country Link
CA (1) CA2884819C (fr)
WO (1) WO2013134130A1 (fr)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3008862A (en) * 1956-06-29 1961-11-14 Union Carbide Corp Extruded bead sealing
US6579008B2 (en) * 1997-01-31 2003-06-17 S.C. Johnson Home Storage, Inc. Multicompartment thermoplastic bag with raised center lip
US6371643B2 (en) * 1999-06-02 2002-04-16 S. C. Johnson Home Storage, Inc. Multi-Layered freezer storage bag
US6682792B2 (en) * 2001-03-26 2004-01-27 M & Q Plastic Products, Inc. Thermoplastic elastomer films
JP4926563B2 (ja) * 2006-06-28 2012-05-09 東京応化工業株式会社 流体用容器及びそれを用いた流体入り容器

Also Published As

Publication number Publication date
CA2884819A1 (fr) 2013-09-12
WO2013134130A1 (fr) 2013-09-12

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Effective date: 20180202