TW200513690A - Method for producing a polarizing film, method for producing a polarizer, and method for producing optical laminate - Google Patents

Method for producing a polarizing film, method for producing a polarizer, and method for producing optical laminate

Info

Publication number
TW200513690A
TW200513690A TW093127660A TW93127660A TW200513690A TW 200513690 A TW200513690 A TW 200513690A TW 093127660 A TW093127660 A TW 093127660A TW 93127660 A TW93127660 A TW 93127660A TW 200513690 A TW200513690 A TW 200513690A
Authority
TW
Taiwan
Prior art keywords
producing
polarizing film
treatment
manufacturing
stretching
Prior art date
Application number
TW093127660A
Other languages
Chinese (zh)
Other versions
TWI362509B (en
Inventor
Keiji Amitani
Seiji Fujimoto
Koji Matsumoto
Hisanori Yamane
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 TW200513690A publication Critical patent/TW200513690A/en
Application granted granted Critical
Publication of TWI362509B publication Critical patent/TWI362509B/en

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
    • G02B5/3041—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 comprising multiple thin layers, e.g. multilayer stacks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C55/00—Shaping by stretching, e.g. drawing through a die; Apparatus therefor
    • B29C55/02—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets
    • B29C55/04—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets uniaxial, e.g. oblique
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
    • C08J5/18—Manufacture of films or sheets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
    • B29K2995/0018—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds having particular optical properties, e.g. fluorescent or phosphorescent
    • B29K2995/0034—Polarising

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Medicinal Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Polarising Elements (AREA)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)

Abstract

The present invention provides a method for manufacturing a polarizing film, a method for manufacturing a polarizer, and a method for manufacturing an optical laminate, in which color unevenness is less. In the polarizing film manufacturing method for obtaining the polarizing film by successively treating a polyvinyl alcohol film with swelling treatment, dyeing treatment, and boric acid treatment in baths, in this order, and by uniaxially stretching it in at least one process of the treatment. At least one step of a wet-stretching process is provided after the swelling treatment and before the dyeing treatment. In the stretching step, the film is uniaxially stretched at the stretching rate greater than 1.1 and less than 3, in an aqueous solution containing 0.01 to 2.0 parts by weight of boric acid to 100 parts by weight of water.
TW093127660A 2003-10-07 2004-09-13 The method for producing a polarizing film, the method for producing a polarizer, and the method for producing optical laminate TWI362509B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2003348465A JP4323280B2 (en) 2003-10-07 2003-10-07 Manufacturing method of polarizing film, manufacturing method of polarizing plate, and manufacturing method of optical laminate

Publications (2)

Publication Number Publication Date
TW200513690A true TW200513690A (en) 2005-04-16
TWI362509B TWI362509B (en) 2012-04-21

Family

ID=34540654

Family Applications (1)

Application Number Title Priority Date Filing Date
TW093127660A TWI362509B (en) 2003-10-07 2004-09-13 The method for producing a polarizing film, the method for producing a polarizer, and the method for producing optical laminate

Country Status (4)

Country Link
JP (1) JP4323280B2 (en)
KR (1) KR101126399B1 (en)
CN (1) CN100399071C (en)
TW (1) TWI362509B (en)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006011436A1 (en) * 2004-07-28 2006-02-02 Nitto Denko Corporation Process for producing polarizing film, polarizing film, polarizing plate, optical film, and image display
JP4697964B2 (en) * 2006-02-24 2011-06-08 日東電工株式会社 Polarizer manufacturing method and cleaning apparatus
JP5034600B2 (en) * 2007-03-29 2012-09-26 住友化学株式会社 Manufacturing method of polarizing film
JP4888853B2 (en) 2009-11-12 2012-02-29 学校法人慶應義塾 Method for improving visibility of liquid crystal display device, and liquid crystal display device using the same
US9798189B2 (en) 2010-06-22 2017-10-24 Toyobo Co., Ltd. Liquid crystal display device, polarizer and protective film
JP5490750B2 (en) * 2010-09-03 2014-05-14 日東電工株式会社 Manufacturing method of thin polarizing film
TWI542907B (en) 2011-05-18 2016-07-21 東洋紡績股份有限公司 Liquid crystal device, polarizing plate and polarizer protection film
US10175494B2 (en) 2011-05-18 2019-01-08 Toyobo Co., Ltd. Polarizing plate suitable for liquid crystal display device capable of displaying three-dimensional images, and liquid crystal display device
KR101463799B1 (en) * 2012-03-22 2014-11-20 에스케이씨 주식회사 Polyvinyl alcohol-based polymeric film and method for preparing same
JP6212906B2 (en) * 2013-03-29 2017-10-18 東洋紡株式会社 Liquid crystal display device, polarizing plate, and polarizer protective film
CN103278877B (en) * 2013-06-15 2015-08-19 佛山纬达光电材料有限公司 A kind of manufacture method of high-temperature resistant polarizer
WO2014204134A1 (en) * 2013-06-18 2014-12-24 주식회사 엘지화학 Thin polarizing plate and method for manufacturing same
KR20160023429A (en) * 2014-08-22 2016-03-03 스미또모 가가꾸 가부시키가이샤 Preparing method for polarizer
KR102535102B1 (en) * 2016-08-18 2023-05-19 스미또모 가가꾸 가부시키가이샤 Process for producing polarizing film and apparatus for producing polarizing film
CN114437384B (en) * 2020-10-30 2023-08-15 中国石油化工股份有限公司 Polyvinyl alcohol optical film, preparation method thereof and polarizer

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10153709A (en) 1996-11-22 1998-06-09 Tokai Rubber Ind Ltd Production of polarizer film
JP2001141926A (en) * 1999-11-15 2001-05-25 Nitto Denko Corp Manufacturing method for polarizing film, polarizing plate and display device
JP4362211B2 (en) * 2000-06-28 2009-11-11 株式会社クラレ Manufacturing method of polarizing film
US6630289B1 (en) * 2000-08-22 2003-10-07 The Hong Kong University Of Science And Technology Photo-patterned light polarizing films
JP4593827B2 (en) * 2001-05-28 2010-12-08 西工業株式会社 Polarizing film manufacturing method and manufacturing apparatus

Also Published As

Publication number Publication date
CN100399071C (en) 2008-07-02
KR101126399B1 (en) 2012-03-28
JP2005114990A (en) 2005-04-28
JP4323280B2 (en) 2009-09-02
KR20050033805A (en) 2005-04-13
TWI362509B (en) 2012-04-21
CN1641381A (en) 2005-07-20

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