CA2279679C - Fermeture a valve acoustique pour sacs a valve - Google Patents
Fermeture a valve acoustique pour sacs a valve Download PDFInfo
- Publication number
- CA2279679C CA2279679C CA 2279679 CA2279679A CA2279679C CA 2279679 C CA2279679 C CA 2279679C CA 2279679 CA2279679 CA 2279679 CA 2279679 A CA2279679 A CA 2279679A CA 2279679 C CA2279679 C CA 2279679C
- Authority
- CA
- Canada
- Prior art keywords
- valve
- bag
- flap
- tube
- edge
- 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.)
- Expired - Lifetime
Links
- 238000000576 coating method Methods 0.000 claims description 16
- 239000011248 coating agent Substances 0.000 claims description 14
- 239000002655 kraft paper Substances 0.000 claims description 9
- 239000004698 Polyethylene Substances 0.000 claims description 8
- -1 polyethylene Polymers 0.000 claims description 8
- 229920000573 polyethylene Polymers 0.000 claims description 8
- 239000002985 plastic film Substances 0.000 claims description 6
- 229920006255 plastic film Polymers 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 5
- 229920003023 plastic Polymers 0.000 claims description 5
- 239000004033 plastic Substances 0.000 claims description 5
- 238000009472 formulation Methods 0.000 claims description 3
- 229920001903 high density polyethylene Polymers 0.000 claims description 3
- 239000004700 high-density polyethylene Substances 0.000 claims description 3
- 239000004615 ingredient Substances 0.000 claims description 3
- 229920001684 low density polyethylene Polymers 0.000 claims description 3
- 239000004702 low-density polyethylene Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 11
- 238000005429 filling process Methods 0.000 abstract description 5
- 239000010410 layer Substances 0.000 description 43
- 238000007789 sealing Methods 0.000 description 35
- 239000000463 material Substances 0.000 description 20
- 239000000123 paper Substances 0.000 description 15
- 239000000853 adhesive Substances 0.000 description 8
- 230000001070 adhesive effect Effects 0.000 description 8
- 230000008569 process Effects 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 6
- 238000010276 construction Methods 0.000 description 5
- 230000004888 barrier function Effects 0.000 description 4
- 230000005465 channeling Effects 0.000 description 4
- 238000005520 cutting process Methods 0.000 description 4
- 239000003292 glue Substances 0.000 description 4
- 229920002472 Starch Polymers 0.000 description 3
- 235000019698 starch Nutrition 0.000 description 3
- 239000008107 starch Substances 0.000 description 3
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 229920003182 Surlyn® Polymers 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 239000012943 hotmelt Substances 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 235000008476 powdered milk Nutrition 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Bag Frames (AREA)
- Containers And Plastic Fillers For Packaging (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US19007998A | 1998-11-12 | 1998-11-12 | |
| US190,079 | 1998-11-12 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2279679A1 CA2279679A1 (fr) | 2000-05-12 |
| CA2279679C true CA2279679C (fr) | 2007-12-04 |
Family
ID=31186547
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2279679 Expired - Lifetime CA2279679C (fr) | 1998-11-12 | 1999-08-05 | Fermeture a valve acoustique pour sacs a valve |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2279679C (fr) |
-
1999
- 1999-08-05 CA CA 2279679 patent/CA2279679C/fr not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| CA2279679A1 (fr) | 2000-05-12 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKEX | Expiry |
Effective date: 20190806 |