CA2126275A1 - Laminated films - Google Patents
Laminated filmsInfo
- Publication number
- CA2126275A1 CA2126275A1 CA 2126275 CA2126275A CA2126275A1 CA 2126275 A1 CA2126275 A1 CA 2126275A1 CA 2126275 CA2126275 CA 2126275 CA 2126275 A CA2126275 A CA 2126275A CA 2126275 A1 CA2126275 A1 CA 2126275A1
- Authority
- CA
- Canada
- Prior art keywords
- layer
- films
- film
- heat
- layers
- 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.)
- Granted
Links
- 229920006280 packaging film Polymers 0.000 abstract 3
- 239000012785 packaging film Substances 0.000 abstract 3
- 229920001169 thermoplastic Polymers 0.000 abstract 3
- 239000004416 thermosoftening plastic Substances 0.000 abstract 3
- 238000010276 construction Methods 0.000 abstract 1
- 229920000092 linear low density polyethylene Polymers 0.000 abstract 1
- 239000004707 linear low-density polyethylene Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 238000004804 winding Methods 0.000 abstract 1
Landscapes
- Laminated Bodies (AREA)
Abstract
The invention provides a heat-shrinkable thermoplastics packaging film comprising a laminate of two or more individual heat-shrinkable thermoplastics packaging films, where each of the individual films is substantially identical in composition and layer construction. The films are preferably prepared from double wound film, especially biaxially oriented film comprising LLDPE. The invention also provides a process of preparing such a film, comprising: a) providing two layers of heat-shrinkable thermoplastics packaging film, namely a first layer and a second layer, each of the first and second layers having inner and outer surfaces, the inner surfaces being adjacent to each other; b) treating the outer surface of the first layer to enable the first layer to adhere to the second layer; and c) winding the two layers together into a roll, such that the treated outer surface of the first layer adheres to the outer surface of the second layer to form a laminate. The laminated films of the invention have good strength as well as being advantageously thin.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NZ247940A NZ247940A (en) | 1993-06-21 | 1993-06-21 | Heat-shrinkable thermoplastics packaging film comprising at least two identical films |
| NZ247940 | 1993-06-21 | ||
| NZ24794994 | 1994-06-16 | ||
| NZ247,940 | 1994-06-16 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2126275A1 true CA2126275A1 (en) | 1994-12-22 |
| CA2126275C CA2126275C (en) | 2003-10-21 |
Family
ID=29405447
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2126275 Expired - Fee Related CA2126275C (en) | 1993-06-21 | 1994-06-20 | Laminated films |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2126275C (en) |
-
1994
- 1994-06-20 CA CA 2126275 patent/CA2126275C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CA2126275C (en) | 2003-10-21 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |