TW201613990A - Manufacturing method of polarizing film - Google Patents

Manufacturing method of polarizing film

Info

Publication number
TW201613990A
TW201613990A TW104125202A TW104125202A TW201613990A TW 201613990 A TW201613990 A TW 201613990A TW 104125202 A TW104125202 A TW 104125202A TW 104125202 A TW104125202 A TW 104125202A TW 201613990 A TW201613990 A TW 201613990A
Authority
TW
Taiwan
Prior art keywords
film
bath
dying
manufacturing
polarizing film
Prior art date
Application number
TW104125202A
Other languages
Chinese (zh)
Other versions
TWI654225B (en
Inventor
Keiji Amitani
Naoki Yoshida
Original Assignee
Sumitomo Chemical Co
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 Sumitomo Chemical Co filed Critical Sumitomo Chemical Co
Publication of TW201613990A publication Critical patent/TW201613990A/en
Application granted granted Critical
Publication of TWI654225B publication Critical patent/TWI654225B/en

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/30—Polarising elements
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors

Abstract

The present invention provides a manufacturing method of polarizing film which comprises in sequence a swelling step of pulling an elongate polyvinyl alcohol type resin film with thickness of 65 [mu]m or less out of a wetting bath after the film is dipped in the wetting bath while the film is being continuously moved, and a dying step of pulling the film which has been pulled out of the wetting bath out of a dying bath after the film is dipped in the dying bath, wherein the curl angle of at least one of both widthwise end portions of the film, is less than 90 DEG.
TW104125202A 2014-08-04 2015-08-04 Method for manufacturing polarizing film TWI654225B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2014158497 2014-08-04
JP2014-158497 2014-08-04

Publications (2)

Publication Number Publication Date
TW201613990A true TW201613990A (en) 2016-04-16
TWI654225B TWI654225B (en) 2019-03-21

Family

ID=55263703

Family Applications (1)

Application Number Title Priority Date Filing Date
TW104125202A TWI654225B (en) 2014-08-04 2015-08-04 Method for manufacturing polarizing film

Country Status (5)

Country Link
JP (3) JP6294491B2 (en)
KR (1) KR101990222B1 (en)
CN (1) CN106575008B (en)
TW (1) TWI654225B (en)
WO (1) WO2016021432A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI798262B (en) * 2017-09-26 2023-04-11 日商住友化學股份有限公司 Conveying method and conveying apparatus for film, manufacturing method and manufacturing apparatus for processed film

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI640555B (en) * 2017-08-16 2018-11-11 住友化學股份有限公司 Method and system for manufacturing a polarizer film
JP7061712B2 (en) * 2020-07-22 2022-04-28 住友化学株式会社 Method for manufacturing polarizing film and polyvinyl alcohol-based film

Family Cites Families (19)

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Publication number Priority date Publication date Assignee Title
JPS5426582B1 (en) * 1970-08-26 1979-09-05
JP3429476B2 (en) * 2000-05-09 2003-07-22 株式会社クラレ Polyvinyl alcohol polymer film, its production method and polarizing film
JP3478534B2 (en) * 2000-07-17 2003-12-15 株式会社クラレ Polyvinyl alcohol film and polarizing film
JP2004020635A (en) * 2002-06-12 2004-01-22 Kuraray Co Ltd Manufacturing method of polyvinyl alcohol film for optical use
JP4323269B2 (en) * 2003-09-10 2009-09-02 住友化学株式会社 Manufacturing method of polarizing film
JP2005227650A (en) * 2004-02-16 2005-08-25 Sumitomo Chemical Co Ltd Manufacturing method of polarizing film, polarizing plate and optical laminate
JP2006282918A (en) * 2005-04-04 2006-10-19 Masahiko Nose Method and device for dyeing polyvinyl alcohol film, method and device for producing polarizing film, and polarlizing film and polarizing plate
JP4697964B2 (en) * 2006-02-24 2011-06-08 日東電工株式会社 Polarizer manufacturing method and cleaning apparatus
JP2008241910A (en) * 2007-03-26 2008-10-09 Nitto Denko Corp Method of manufacturing polarizing film
JP2008281877A (en) * 2007-05-11 2008-11-20 Nitto Denko Corp Manufacturing method of polarizer, polarizer, polarizing plate, optical film and image display apparatus
JP2009063829A (en) * 2007-09-06 2009-03-26 Sumitomo Chemical Co Ltd Polarizing film, polarizing plate and those manufacturing method
KR101726006B1 (en) * 2008-12-18 2017-04-11 주식회사 쿠라레 Method for producing polarizing film
CN102029710B (en) * 2009-10-06 2015-04-01 富士胶片株式会社 Method for manufacturing optical film, optical film, liquid crystal display device and image display device
JP2011111526A (en) * 2009-11-26 2011-06-09 Kuraray Co Ltd Polyvinyl alcohol-based polymer film
JP5562084B2 (en) * 2010-03-24 2014-07-30 日東電工株式会社 Optical film manufacturing method and manufacturing apparatus thereof
JP4902801B2 (en) * 2010-06-22 2012-03-21 住友化学株式会社 Manufacturing method of polarizing film
CN103149620B (en) * 2011-12-06 2017-04-12 日东电工株式会社 Process for producing polarizing element and process for producing polarizing plate
KR102072261B1 (en) * 2012-11-30 2020-01-31 주식회사 쿠라레 Multilayer film
JP6462199B2 (en) * 2012-12-04 2019-01-30 住友化学株式会社 Manufacturing method of polarizing film and polarizing plate

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI798262B (en) * 2017-09-26 2023-04-11 日商住友化學股份有限公司 Conveying method and conveying apparatus for film, manufacturing method and manufacturing apparatus for processed film

Also Published As

Publication number Publication date
CN106575008A (en) 2017-04-19
JP2018063443A (en) 2018-04-19
JPWO2016021432A1 (en) 2017-06-01
JP6294491B2 (en) 2018-03-14
WO2016021432A1 (en) 2016-02-11
KR20170040241A (en) 2017-04-12
KR101990222B1 (en) 2019-06-17
TWI654225B (en) 2019-03-21
CN106575008B (en) 2019-12-24
JP2017211657A (en) 2017-11-30

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