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JPS57124701A - Manufacture of polarizing film - Google Patents

Manufacture of polarizing film

Info

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
Application number
JP1127181A
Other languages
Japanese (ja)
Other versions
JPS615121B2 (en
Inventor
Yoichi Ono
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Seiko Epson Corp
Suwa Seikosha KK
Epson Corp
Original Assignee
Seiko Epson Corp
Suwa Seikosha KK
Epson Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Seiko Epson Corp, Suwa Seikosha KK, Epson Corp filed Critical Seiko Epson Corp
Priority to JP1127181A priority Critical patent/JPS57124701A/en
Publication of JPS57124701A publication Critical patent/JPS57124701A/en
Publication of JPS615121B2 publication Critical patent/JPS615121B2/ja
Granted legal-status Critical Current

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.
JP1127181A 1981-01-28 1981-01-28 Manufacture of polarizing film Granted JPS57124701A (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Cited By (14)

* Cited by examiner, † Cited by third party
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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