JPS5766929A - Manufacture of dyed film - Google Patents
Manufacture of dyed filmInfo
- Publication number
- JPS5766929A JPS5766929A JP14406080A JP14406080A JPS5766929A JP S5766929 A JPS5766929 A JP S5766929A JP 14406080 A JP14406080 A JP 14406080A JP 14406080 A JP14406080 A JP 14406080A JP S5766929 A JPS5766929 A JP S5766929A
- Authority
- JP
- Japan
- Prior art keywords
- film
- solution
- water
- contacting
- ethylene
- 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
Abstract
PURPOSE:To thicken dyeing degree and improve light polarization power by forming film using alcohol-water mixed solution of saponified product of ethylene-vinylacetate copolymer added with iodine or dichromatic dye. CONSTITUTION:Saponification product of ethylene-vinylacetate copolymer is dissolved in alcohol-water mixed solvent, and further iodine or dichromatic dye are added, a solution is prepared. Then, after film is formed from said solution, dyed film is obtained by contacting water. Dye film can be manufactured by stretching before contacting water, after contacting or at the same time as contacting. Film forming is done by applying said solution on the supporter of the endless belt etc. and dried at the range from the room temperature to 140 deg.C. Contact of obtained film with water may be performed by optional means of immersion, application, spray etc. and uniaxial stretch is suitable for stretching of polarization film.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14406080A JPS5766929A (en) | 1980-10-14 | 1980-10-14 | Manufacture of dyed film |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14406080A JPS5766929A (en) | 1980-10-14 | 1980-10-14 | Manufacture of dyed film |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5766929A true JPS5766929A (en) | 1982-04-23 |
JPS6337361B2 JPS6337361B2 (en) | 1988-07-25 |
Family
ID=15353368
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14406080A Granted JPS5766929A (en) | 1980-10-14 | 1980-10-14 | Manufacture of dyed film |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5766929A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6470702A (en) * | 1987-09-11 | 1989-03-16 | Nippon Kayaku Kk | Production of polarizing film |
TWI400159B (en) * | 2006-12-28 | 2013-07-01 | Nitto Denko Corp | Method for manufacturing singular element, polarizing element, polarizing plate, optical film, manufacturing method of composite polarizing plate |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6385106B2 (en) * | 2013-04-12 | 2018-09-05 | 日本合成化学工業株式会社 | Method for producing polarizer and method for producing polarizing plate |
-
1980
- 1980-10-14 JP JP14406080A patent/JPS5766929A/en active Granted
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6470702A (en) * | 1987-09-11 | 1989-03-16 | Nippon Kayaku Kk | Production of polarizing film |
TWI400159B (en) * | 2006-12-28 | 2013-07-01 | Nitto Denko Corp | Method for manufacturing singular element, polarizing element, polarizing plate, optical film, manufacturing method of composite polarizing plate |
Also Published As
Publication number | Publication date |
---|---|
JPS6337361B2 (en) | 1988-07-25 |
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