FR2398672A1 - Sac double a fermeture automatique, et procede pour sa fabrication - Google Patents

Sac double a fermeture automatique, et procede pour sa fabrication

Info

Publication number
FR2398672A1
FR2398672A1 FR7724118A FR7724118A FR2398672A1 FR 2398672 A1 FR2398672 A1 FR 2398672A1 FR 7724118 A FR7724118 A FR 7724118A FR 7724118 A FR7724118 A FR 7724118A FR 2398672 A1 FR2398672 A1 FR 2398672A1
Authority
FR
France
Prior art keywords
lining
corner
folded inwards
outside
prodn
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Withdrawn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
FR7724118A
Other languages
English (en)
Inventor
Dennis Pollitt
Bryan Oddie
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.)
FAIRBAIRN LAWSON PACKAGING Ltd
Original Assignee
FAIRBAIRN LAWSON PACKAGING 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 FAIRBAIRN LAWSON PACKAGING Ltd filed Critical FAIRBAIRN LAWSON PACKAGING Ltd
Priority to FR7724118A priority Critical patent/FR2398672A1/fr
Publication of FR2398672A1 publication Critical patent/FR2398672A1/fr
Withdrawn legal-status Critical Current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
    • B65D31/14—Valve bags, i.e. with valves for filling
    • 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
    • B65D31/02—Bags or like containers made of paper and having structural provision for thickness of contents with laminated walls
    • 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
    • B31B70/84—Forming or attaching means for filling or dispensing contents, e.g. valves or spouts
    • B31B70/855—Forming valves integral with the containers

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Tubes (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)

Abstract

L'invention concerne un sac doublé à fermeture automatique Le sac comprend deux tubes ayant chacun une extrémité fermée, le tube interne constituant une doublure et son extrémité ouverte s'étendant au-delà de l'extrémité ouverte du tube externe 10. On replie vers l'intérieur un coin 24 de l'extrémité ouverte du tube 10, ainsi que le coin correspondant 26 de la doublure, pour former une fermeture automatique pour le remplissage du sac. Quand le sac est rempli, la fermeture s'aplatit et s'obture ainsi d'elle-même. Application : sac pour matériaux en poudre fine à l'état libre.
FR7724118A 1977-07-28 1977-07-28 Sac double a fermeture automatique, et procede pour sa fabrication Withdrawn FR2398672A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7724118A FR2398672A1 (fr) 1977-07-28 1977-07-28 Sac double a fermeture automatique, et procede pour sa fabrication

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7724118A FR2398672A1 (fr) 1977-07-28 1977-07-28 Sac double a fermeture automatique, et procede pour sa fabrication

Publications (1)

Publication Number Publication Date
FR2398672A1 true FR2398672A1 (fr) 1979-02-23

Family

ID=9194254

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7724118A Withdrawn FR2398672A1 (fr) 1977-07-28 1977-07-28 Sac double a fermeture automatique, et procede pour sa fabrication

Country Status (1)

Country Link
FR (1) FR2398672A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0565447A1 (fr) * 1992-04-10 1993-10-13 Lembacel Sac en papier à valve

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0565447A1 (fr) * 1992-04-10 1993-10-13 Lembacel Sac en papier à valve
FR2689862A1 (fr) * 1992-04-10 1993-10-15 Lembacel Sa Sac en papier.

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Legal Events

Date Code Title Description
ST Notification of lapse