EP0974450A3 - Window bags and a method of manufacture thereof - Google Patents

Window bags and a method of manufacture thereof Download PDF

Info

Publication number
EP0974450A3
EP0974450A3 EP99305853A EP99305853A EP0974450A3 EP 0974450 A3 EP0974450 A3 EP 0974450A3 EP 99305853 A EP99305853 A EP 99305853A EP 99305853 A EP99305853 A EP 99305853A EP 0974450 A3 EP0974450 A3 EP 0974450A3
Authority
EP
European Patent Office
Prior art keywords
window
bag
laminated
sheet
manufacture
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Withdrawn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
EP99305853A
Other languages
German (de)
French (fr)
Other versions
EP0974450A2 (en
Inventor
Timothy Law
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.)
Gala International Group
Original Assignee
Gala International Group
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 Gala International Group filed Critical Gala International Group
Publication of EP0974450A2 publication Critical patent/EP0974450A2/en
Publication of EP0974450A3 publication Critical patent/EP0974450A3/en
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • B31B70/82—Forming or attaching windows
    • B31B70/826—Forming or attaching windows involving applying window patches
    • 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
    • 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
    • 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
    • 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
    • B31B70/82—Forming or attaching windows

Landscapes

  • Making Paper Articles (AREA)
  • Bag Frames (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Abstract

A method of manufacturing a bag (1) with at least one window is provided. The method comprises the steps of firstly providing at least one window (8) in a sheet (2) of a first material. Secondly a second material is laminated to at least one surface of the sheet (2) of the first material such that the second material seals around the edges of the or each window (8). Lastly a bag (1) is formed from the laminated, windowed sheet of material such that one or more of the inner and/or outer surfaces of the bag (1) has the second material laminated thereto. The first material preferably comprises paper while the second material preferably comprises a plastics material. The lamination may be achieved by means of an adhesive or by heat-welding.
EP99305853A 1998-07-23 1999-07-23 Window bags and a method of manufacture thereof Withdrawn EP0974450A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB9815991.6A GB9815991D0 (en) 1998-07-23 1998-07-23 Bags and a method of manufacture thereof
GB9815991 1998-07-23

Publications (2)

Publication Number Publication Date
EP0974450A2 EP0974450A2 (en) 2000-01-26
EP0974450A3 true EP0974450A3 (en) 2000-04-26

Family

ID=10835999

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99305853A Withdrawn EP0974450A3 (en) 1998-07-23 1999-07-23 Window bags and a method of manufacture thereof

Country Status (2)

Country Link
EP (1) EP0974450A3 (en)
GB (2) GB9815991D0 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2869788C (en) 2006-07-12 2016-07-05 Genpak Lp Packaging roll stock with windows
CN108481818B (en) * 2018-03-26 2020-04-17 涿州皓原箔业有限公司 Temperature-resistant transparent window aluminum foil bag and manufacturing method thereof

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5410857A (en) * 1994-04-20 1995-05-02 Vitex Packaging, Inc. Process for making windowed form, fill and seal bags
EP0765744A2 (en) * 1995-09-28 1997-04-02 Policarta S.r.l. A machine and process for formation of a continuous composite tape for the production of wrappings for food products, and the tape and wrapping thus obtained

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1367627A (en) * 1971-12-02 1974-09-18 Masson Scott Thrissell Eng Ltd Wrappers for tramophone records
GB2309026B (en) * 1996-01-12 2000-05-10 Monge Fernon Maurice De Improvements relating to packaging

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5410857A (en) * 1994-04-20 1995-05-02 Vitex Packaging, Inc. Process for making windowed form, fill and seal bags
EP0765744A2 (en) * 1995-09-28 1997-04-02 Policarta S.r.l. A machine and process for formation of a continuous composite tape for the production of wrappings for food products, and the tape and wrapping thus obtained

Also Published As

Publication number Publication date
GB2339718A (en) 2000-02-09
GB9917243D0 (en) 1999-09-22
GB9815991D0 (en) 1998-09-23
EP0974450A2 (en) 2000-01-26

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