PT80953A - A plastic bag a method of producing a bag and apparatus for executing this method - Google Patents
A plastic bag a method of producing a bag and apparatus for executing this methodInfo
- Publication number
- PT80953A PT80953A PT80953A PT8095385A PT80953A PT 80953 A PT80953 A PT 80953A PT 80953 A PT80953 A PT 80953A PT 8095385 A PT8095385 A PT 8095385A PT 80953 A PT80953 A PT 80953A
- Authority
- PT
- Portugal
- Prior art keywords
- bag
- seals
- fold
- additional
- fold part
- Prior art date
Links
Landscapes
- Making Paper Articles (AREA)
Abstract
An open ended plastic bag formed by heat sealing comprises a central and two outer longitudinal gusset fold edges bounding a first and a second gusset fold part, a bottom seal, and two first and two second fold part seals, at both sides of the bag. Additional seals extend parallel and near to the fold edges between central and outer fold edges. Each first, second and additional seal connects an outer bag foil layer with the opposite gusset fold part. Additional seals connected with second fold part seals extend to the free open end of the bag and additional seals connected with the first fold part seals extend to the transverse seal. As number of bags may form a web. Appts. for forming such bags comprises sealing means for forming a bottom seal, first and second fold part seals and additional seals. (First major country equivalent to PT--80953-A) (17pp) Method, and appts. are claimed for producing an improved heat-sealable gusset bag formed of plastic foil such that (a) at both sides of a bag two additional seals extend parallel to the fold edges in the region between the inner and outer fold edges, which additional seals are connected with the second fold part seals and extend from the second fold part seals towards the open end of the bag, each additional seal connected an outer foil layer of the bag with an opposite gusset fold.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ZA855758A ZA855758B (en) | 1985-07-31 | 1985-07-31 | A plastic bag,a method of producing a bag,and apparatus for executing this method |
Publications (2)
Publication Number | Publication Date |
---|---|
PT80953A true PT80953A (en) | 1985-09-01 |
PT80953B PT80953B (en) | 1987-08-19 |
Family
ID=25578010
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PT80953A PT80953B (en) | 1985-07-31 | 1985-08-14 | PLASTIC BAG, PROCESS FOR THE MANUFACTURE OF THAT BAG AND DEVICE FOR THE PPLICATION OF THIS PROCESS |
Country Status (2)
Country | Link |
---|---|
PT (1) | PT80953B (en) |
ZA (1) | ZA855758B (en) |
-
1985
- 1985-07-31 ZA ZA855758A patent/ZA855758B/en unknown
- 1985-08-14 PT PT80953A patent/PT80953B/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
ZA855758B (en) | 1986-08-27 |
PT80953B (en) | 1987-08-19 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
MM3A | Annulment or lapse |
Free format text: LAPSE DUE TO NON-PAYMENT OF FEES Effective date: 19990630 |