EP0112660A3 - Pinch bottom sacks - Google Patents

Pinch bottom sacks Download PDF

Info

Publication number
EP0112660A3
EP0112660A3 EP19830307242 EP83307242A EP0112660A3 EP 0112660 A3 EP0112660 A3 EP 0112660A3 EP 19830307242 EP19830307242 EP 19830307242 EP 83307242 A EP83307242 A EP 83307242A EP 0112660 A3 EP0112660 A3 EP 0112660A3
Authority
EP
European Patent Office
Prior art keywords
sack
plies
stepped
tape
folded
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Withdrawn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
EP19830307242
Other languages
German (de)
French (fr)
Other versions
EP0112660A2 (en
Inventor
William Thomson
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.)
LIN PAC CONTAINERS INTERNATIONAL Ltd
Original Assignee
LIN PAC CONTAINERS INTERNATIONAL Ltd
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
Application filed by LIN PAC CONTAINERS INTERNATIONAL Ltd filed Critical LIN PAC CONTAINERS INTERNATIONAL Ltd
Publication of EP0112660A2 publication Critical patent/EP0112660A2/en
Publication of EP0112660A3 publication Critical patent/EP0112660A3/en
Withdrawn legal-status Critical Current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
    • B65D31/04—Bags or like containers made of paper and having structural provision for thickness of contents with multiple walls

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Making Paper Articles (AREA)
  • Sheet Holders (AREA)

Abstract

An easy-open pinch bottom sack 12′ and method of man­ ufacturing the same, comprising a tape (21) which is located between at least one folded ply and an adjacent wall of the sack (12′) at one end thereof and which has been secured to said at least one ply of a plurality of stepped or staggered plies (16) at that end of the sack (12′) by means of a hot melt adhesive, prior to the stepped or staggered plies (16) being folded and adhered together during manufacture of the sack (12′). Preferably, the tape (21) is impregnated with hot melt adhesive which has been re-melted immediately prior to the application of the tape (21) to the stepped or staggered plies (16) at the one end of the sack (12′) in a multi-wall tubular form, which plies (16) have been subsequently folded and adhered to each other.
EP19830307242 1982-12-21 1983-11-28 Pinch bottom sacks Withdrawn EP0112660A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB08236310A GB2132170A (en) 1982-12-21 1982-12-21 Easy-open sack
GB8236310 1982-12-21

Publications (2)

Publication Number Publication Date
EP0112660A2 EP0112660A2 (en) 1984-07-04
EP0112660A3 true EP0112660A3 (en) 1985-08-28

Family

ID=10535129

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19830307242 Withdrawn EP0112660A3 (en) 1982-12-21 1983-11-28 Pinch bottom sacks

Country Status (2)

Country Link
EP (1) EP0112660A3 (en)
GB (1) GB2132170A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9306880D0 (en) * 1993-04-01 1993-05-26 Paper Sacks Ltd Multi-wall paper sacks
WO1999023000A1 (en) * 1997-11-03 1999-05-14 Amcor Packaging (Australia) Pty. Ltd. A multi-wall sack
JP6323944B2 (en) * 2014-02-20 2018-05-16 石川株式会社 Breathable multilayer paper bag for easy opening
JP6380947B2 (en) * 2014-02-20 2018-08-29 石川株式会社 Easy-to-open moisture-proof multilayer bag

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1611678A1 (en) * 1967-11-18 1972-02-03 Hans Paal Connection element for producing adhesive connections
US3565328A (en) * 1969-05-15 1971-02-23 Bemis Co Inc Multiwall pinch closure bag with opening feature
US3850366A (en) * 1971-03-11 1974-11-26 A Saito Multi-layer bags
US3910488A (en) * 1972-03-20 1975-10-07 St Regis Paper Co Gusseted pinch bottom breakaway pouch bag

Also Published As

Publication number Publication date
EP0112660A2 (en) 1984-07-04
GB2132170A (en) 1984-07-04

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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

AK Designated contracting states

Designated state(s): AT BE CH DE FR GB IT LI LU NL SE

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Designated state(s): AT BE CH DE FR GB IT LI LU NL SE

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: 19860428

RIN1 Information on inventor provided before grant (corrected)

Inventor name: THOMSON, WILLIAM