JPS54159483A - Composite film - Google Patents
Composite filmInfo
- Publication number
- JPS54159483A JPS54159483A JP6814078A JP6814078A JPS54159483A JP S54159483 A JPS54159483 A JP S54159483A JP 6814078 A JP6814078 A JP 6814078A JP 6814078 A JP6814078 A JP 6814078A JP S54159483 A JPS54159483 A JP S54159483A
- Authority
- JP
- Japan
- Prior art keywords
- less
- film
- elongation
- composite film
- coated
- 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.)
- Pending
Links
Abstract
PURPOSE: A composite film having improved barrier to oxygen and moisture vapor, and mechanical strength, and capable of bearing retort treatment, consisting of a plastic film with a specific thickness.
CONSTITUTION: A thermoplastic film, e.g., a polyester film, or a polyamide film, having a thickness of 3μW1mm, is coated with polyvinylidene chloride to form a coated layer of not less than 8μ, preferably not less than 12μ. This film is then either calendered in the longitudinal direction at a draw ratio of not less than 1.05:1 at 80W150°C under a linear pressure of not less than 1 t/cm2 or oriented in the longitudinal and/or the crosswise direction. A tensile test is carried out by using test pieces with sample length of 50mm and 50mm wide at 20°C, a relative humidity of not more than 65%, and at a rate of pulling of not more than 100%/minute. A ratio of total haze at 10% elongation H to that of before elongation H0(H/H0) is made not less than 1:1.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6814078A JPS54159483A (en) | 1978-06-06 | 1978-06-06 | Composite film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6814078A JPS54159483A (en) | 1978-06-06 | 1978-06-06 | Composite film |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS54159483A true JPS54159483A (en) | 1979-12-17 |
Family
ID=13365135
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6814078A Pending JPS54159483A (en) | 1978-06-06 | 1978-06-06 | Composite film |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS54159483A (en) |
-
1978
- 1978-06-06 JP JP6814078A patent/JPS54159483A/en active Pending
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