FR2366176A1 - Folded and welded bottom for a plastic bag - formed with the aid of an added piece, thus saving material overall - Google Patents

Folded and welded bottom for a plastic bag - formed with the aid of an added piece, thus saving material overall

Info

Publication number
FR2366176A1
FR2366176A1 FR7728993A FR7728993A FR2366176A1 FR 2366176 A1 FR2366176 A1 FR 2366176A1 FR 7728993 A FR7728993 A FR 7728993A FR 7728993 A FR7728993 A FR 7728993A FR 2366176 A1 FR2366176 A1 FR 2366176A1
Authority
FR
France
Prior art keywords
plastic bag
folded
aid
saving material
added piece
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Withdrawn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
FR7728993A
Other languages
French (fr)
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.)
Windmoeller and Hoelscher KG
Original Assignee
Windmoeller and Hoelscher KG
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 Windmoeller and Hoelscher KG filed Critical Windmoeller and Hoelscher KG
Publication of FR2366176A1 publication Critical patent/FR2366176A1/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Withdrawn legal-status Critical Current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
    • B65D31/14—Valve bags, i.e. with valves for filling
    • B65D31/142—Valve bags, i.e. with valves for filling the filling port being formed by folding a flap connected to a side, e.g. block bottoms

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bag Frames (AREA)
  • Making Paper Articles (AREA)

Abstract

The ends of the flattened tube that is to form the plastic bag are first turned outwards, forming flanges at the sides connected by turned-under triangular pieces at the ends. A separate piece of plastic is laid across the flanges, overlapping them on both sides, and is welded to them and to the triangular pieces. The overhanging sides of the added piece are now folded over, near the weld line, to overlap each other, and are welded together, pref. at an off-centre position. Compared to the previous method, in which the bottom of the bag was formed entirely by folding the tube, without the addition of a separate piece, the present method saves material.
FR7728993A 1976-10-01 1977-09-27 Folded and welded bottom for a plastic bag - formed with the aid of an added piece, thus saving material overall Withdrawn FR2366176A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19762644546 DE2644546A1 (en) 1976-10-01 1976-10-01 CROSS BOTTOM OF A SACK MADE FROM A SECTION OF TUBE

Publications (1)

Publication Number Publication Date
FR2366176A1 true FR2366176A1 (en) 1978-04-28

Family

ID=5989504

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7728993A Withdrawn FR2366176A1 (en) 1976-10-01 1977-09-27 Folded and welded bottom for a plastic bag - formed with the aid of an added piece, thus saving material overall

Country Status (6)

Country Link
JP (1) JPS5344271A (en)
BR (1) BR7706542A (en)
DE (1) DE2644546A1 (en)
ES (1) ES462801A1 (en)
FR (1) FR2366176A1 (en)
IT (1) IT1087412B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0146819A2 (en) * 1983-12-28 1985-07-03 Bischof und Klein GmbH & Co. Valve bag made of plastic material

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4526565A (en) * 1983-02-23 1985-07-02 Linear Films, Inc. Method of making flat bottom plastic bag
DE202009007915U1 (en) 2009-06-05 2009-08-20 Worff, Herwig, Dipl.-Ing. bag

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0146819A2 (en) * 1983-12-28 1985-07-03 Bischof und Klein GmbH & Co. Valve bag made of plastic material
EP0146819A3 (en) * 1983-12-28 1986-11-05 Bischof Und Klein Gmbh & Co. Valve bag made of plastic material

Also Published As

Publication number Publication date
ES462801A1 (en) 1978-06-16
JPS5344271A (en) 1978-04-20
DE2644546A1 (en) 1978-04-06
BR7706542A (en) 1978-04-18
IT1087412B (en) 1985-06-04

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Legal Events

Date Code Title Description
ST Notification of lapse