JPS6480527A - Water dispersion polyvinyl alcohol laminated film and its manufacture - Google Patents
Water dispersion polyvinyl alcohol laminated film and its manufactureInfo
- Publication number
- JPS6480527A JPS6480527A JP62238282A JP23828287A JPS6480527A JP S6480527 A JPS6480527 A JP S6480527A JP 62238282 A JP62238282 A JP 62238282A JP 23828287 A JP23828287 A JP 23828287A JP S6480527 A JPS6480527 A JP S6480527A
- Authority
- JP
- Japan
- Prior art keywords
- film
- polyvinyl alcohol
- polymerization degree
- water dispersion
- 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.)
- Granted
Links
Landscapes
- Dental Preparations (AREA)
- Laminated Bodies (AREA)
Abstract
PURPOSE:To improve water dispersion properties and mechanical strength by laminating a film of a high polymerization degree polyvinyl alcohol of given saponification degree and a film of a low polymerization degree polyvinyl alcohol of given saponification degree. CONSTITUTION:Water solution of low polymerization degree polyvinyl alcohol of 35-95mol% of saponification degree and 800 or less of polymerization degree is applied on a base film 3 having peeling properties and dried to form a low polymerization degree polyvinyl alcohol film 2. A film 1 constituted of high polymerization degree alcohol of 70-93mol% of saponification degree and 800-2000 of polymerization degree formed separately is heat contact bonded on said film 2, and then the base film 3 is peeled off to manufacture a water dispersion polyvinyl alcohol laminated film. As for the base film 3 having peeling properties, a matted film is suitable.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62238282A JPH0815773B2 (en) | 1987-09-22 | 1987-09-22 | Water-dispersible polyvinyl alcohol-based laminate film and method for producing the same |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62238282A JPH0815773B2 (en) | 1987-09-22 | 1987-09-22 | Water-dispersible polyvinyl alcohol-based laminate film and method for producing the same |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6480527A true JPS6480527A (en) | 1989-03-27 |
JPH0815773B2 JPH0815773B2 (en) | 1996-02-21 |
Family
ID=17027872
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62238282A Expired - Fee Related JPH0815773B2 (en) | 1987-09-22 | 1987-09-22 | Water-dispersible polyvinyl alcohol-based laminate film and method for producing the same |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0815773B2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH06234195A (en) * | 1991-12-17 | 1994-08-23 | Gijutsu Kenkyu Kumiai Iryo Fukushi Kiki Kenkyusho | Polyvinyl alcohol film |
JP2016064587A (en) * | 2014-09-25 | 2016-04-28 | 積水フィルム株式会社 | Water soluble multilayer film and vegetation sheet using the same |
-
1987
- 1987-09-22 JP JP62238282A patent/JPH0815773B2/en not_active Expired - Fee Related
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH06234195A (en) * | 1991-12-17 | 1994-08-23 | Gijutsu Kenkyu Kumiai Iryo Fukushi Kiki Kenkyusho | Polyvinyl alcohol film |
JP2016064587A (en) * | 2014-09-25 | 2016-04-28 | 積水フィルム株式会社 | Water soluble multilayer film and vegetation sheet using the same |
Also Published As
Publication number | Publication date |
---|---|
JPH0815773B2 (en) | 1996-02-21 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
LAPS | Cancellation because of no payment of annual fees |