JPS57124701A - Manufacture of polarizing film - Google Patents
Manufacture of polarizing filmInfo
- Publication number
- JPS57124701A JPS57124701A JP1127181A JP1127181A JPS57124701A JP S57124701 A JPS57124701 A JP S57124701A JP 1127181 A JP1127181 A JP 1127181A JP 1127181 A JP1127181 A JP 1127181A JP S57124701 A JPS57124701 A JP S57124701A
- Authority
- JP
- Japan
- Prior art keywords
- film
- absorbed
- iodine
- surface layers
- 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
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/30—Polarising elements
- G02B5/3025—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state
- G02B5/3033—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state in the form of a thin sheet or foil, e.g. Polaroid
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
Abstract
PURPOSE:To manufacture a polarizing film with superior optical and environmental characteristics by allowing iodine to be absorbed in a polyvinyl alcohol film up to the central layer part, removing iodine from surface layers, and allowing a dichromatic dye to be absorbed in the layers. CONSTITUTION:By immersing a polyvinyl alcohol film stretched uniaxially by 3-5 times in an aqueous KI soln. of iodine, iodine is allowed to be absorbed in the film up to the central layer part to form an H film, and the film is immersed in an aqueous sodium thiosulfate soln. to remove iodine from surface layers each having a thickness corresponding to 1/6-1/3 of the total thickness of the film. By immersing this film in an aqueous soln. of a dichromatic dye selected from azo, anthraquinone, indigo and phthalocyanine reactive dyes, the dye is allowed to be absorbed in the surface layers to obtain a polyvinyl alcohol film 31 having an iodine absorbed H film layer 32 at the central layer part and dichromatic dye absorbed L film layers 33 at both the surface layers. Thus, a polarizing film with a high degree of polarization and superior moisture resistance is obtd.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1127181A JPS57124701A (en) | 1981-01-28 | 1981-01-28 | Manufacture of polarizing film |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1127181A JPS57124701A (en) | 1981-01-28 | 1981-01-28 | Manufacture of polarizing film |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS57124701A true JPS57124701A (en) | 1982-08-03 |
JPS615121B2 JPS615121B2 (en) | 1986-02-15 |
Family
ID=11773303
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1127181A Granted JPS57124701A (en) | 1981-01-28 | 1981-01-28 | Manufacture of polarizing film |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57124701A (en) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6066205A (en) * | 1983-09-21 | 1985-04-16 | Nitto Electric Ind Co Ltd | Polarizing film |
JP2007199333A (en) * | 2006-01-26 | 2007-08-09 | Mitsubishi Chemicals Corp | Composition for anisotropic dye film, anisotropic dye film, polarizing element and dye for anisotropic dye film |
CN103080790A (en) * | 2010-09-03 | 2013-05-01 | 日东电工株式会社 | Thin polarizing film, optical laminate with thin polarizing film, and production method for thin polarizing film |
US20150070763A1 (en) * | 2013-09-06 | 2015-03-12 | Nitto Denko Corporation | Polarizing film, method of manufacturing polarizing film, and image display apparatus using the polarizing film |
US20150219797A1 (en) * | 2012-10-22 | 2015-08-06 | Nitto Denko Corporation | Polarizing film and method for producing polarizing film |
US9575214B2 (en) | 2009-05-01 | 2017-02-21 | Nitto Denko Corporation | Method for producing polarizer |
US10160173B2 (en) | 2010-09-09 | 2018-12-25 | Nitto Denko Corporation | Method of producing thin polarizing film involving in-air stretching, underwater stretching, and stretching while drying |
TWI697700B (en) * | 2015-02-16 | 2020-07-01 | 日商日東電工股份有限公司 | Polarizer and its manufacturing method, polarizer and image display device |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0611516U (en) * | 1992-07-17 | 1994-02-15 | 株式会社シェルマン | Watch band |
-
1981
- 1981-01-28 JP JP1127181A patent/JPS57124701A/en active Granted
Cited By (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6066205A (en) * | 1983-09-21 | 1985-04-16 | Nitto Electric Ind Co Ltd | Polarizing film |
JP2007199333A (en) * | 2006-01-26 | 2007-08-09 | Mitsubishi Chemicals Corp | Composition for anisotropic dye film, anisotropic dye film, polarizing element and dye for anisotropic dye film |
JP4736823B2 (en) * | 2006-01-26 | 2011-07-27 | 三菱化学株式会社 | Composition for anisotropic dye film, anisotropic dye film, polarizing element and dye for anisotropic dye film |
US9575214B2 (en) | 2009-05-01 | 2017-02-21 | Nitto Denko Corporation | Method for producing polarizer |
CN103080790A (en) * | 2010-09-03 | 2013-05-01 | 日东电工株式会社 | Thin polarizing film, optical laminate with thin polarizing film, and production method for thin polarizing film |
US9227222B2 (en) | 2010-09-03 | 2016-01-05 | Nitto Denko Corporation | Thin polarizing film, optical laminate with thin polarizing film, and production method for thin polarizing film |
CN103080790B (en) * | 2010-09-03 | 2016-03-02 | 日东电工株式会社 | The production method of slim light polarizing film and slim light polarizing film |
US9453953B2 (en) | 2010-09-03 | 2016-09-27 | Nitto Denko Corporation | Thin polarizing film, optical laminate with thin polarizing film, and production method for thin polarizing film |
US10160173B2 (en) | 2010-09-09 | 2018-12-25 | Nitto Denko Corporation | Method of producing thin polarizing film involving in-air stretching, underwater stretching, and stretching while drying |
US20150219797A1 (en) * | 2012-10-22 | 2015-08-06 | Nitto Denko Corporation | Polarizing film and method for producing polarizing film |
US9658366B2 (en) * | 2012-10-22 | 2017-05-23 | Nitto Denko Corporation | Polarizing film and method for producing polarizing film |
US20150070763A1 (en) * | 2013-09-06 | 2015-03-12 | Nitto Denko Corporation | Polarizing film, method of manufacturing polarizing film, and image display apparatus using the polarizing film |
US9690011B2 (en) * | 2013-09-06 | 2017-06-27 | Nitto Denko Corporation | Polarizing film, method of manufacturing polarizing film, and image display apparatus using the polarizing film |
TWI697700B (en) * | 2015-02-16 | 2020-07-01 | 日商日東電工股份有限公司 | Polarizer and its manufacturing method, polarizer and image display device |
Also Published As
Publication number | Publication date |
---|---|
JPS615121B2 (en) | 1986-02-15 |
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