TW200631768A - Method for manufacturing polarized film, polarizing plate and optical laminate - Google Patents

Method for manufacturing polarized film, polarizing plate and optical laminate

Info

Publication number
TW200631768A
TW200631768A TW094143029A TW94143029A TW200631768A TW 200631768 A TW200631768 A TW 200631768A TW 094143029 A TW094143029 A TW 094143029A TW 94143029 A TW94143029 A TW 94143029A TW 200631768 A TW200631768 A TW 200631768A
Authority
TW
Taiwan
Prior art keywords
tension
drying
film
polarizing plate
optical laminate
Prior art date
Application number
TW094143029A
Other languages
Chinese (zh)
Other versions
TWI402157B (en
Inventor
Keiji Amitani
Koji Matsumoto
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 TW200631768A publication Critical patent/TW200631768A/en
Application granted granted Critical
Publication of TWI402157B publication Critical patent/TWI402157B/en

Links

Landscapes

  • Polarising Elements (AREA)
  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)

Abstract

A method for manufacturing a polarizing film less liable to crease or break and having good appearance because of few streaks is provided. The method is characterized in that a polyvinyl alcohol-based film is subjected to swelling, dyeing, boric acid treatment, washing and drying in sequence, the drying is carried out in multiple steps while tension is applied to the film, the tension is controlled so that tension per unit width of the film in each step of the drying is kept substantially constant, tension in the succeeding step is made lower than that in the preceding step, and a drying temperature in the succeeding step is made higher than that in the preceding step.
TW094143029A 2005-01-05 2005-12-06 A method for producing a polarizing film, a polarizing plate, and an optical laminate TWI402157B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2005000525A JP4581690B2 (en) 2005-01-05 2005-01-05 Manufacturing method of polarizing film

Publications (2)

Publication Number Publication Date
TW200631768A true TW200631768A (en) 2006-09-16
TWI402157B TWI402157B (en) 2013-07-21

Family

ID=36796850

Family Applications (1)

Application Number Title Priority Date Filing Date
TW094143029A TWI402157B (en) 2005-01-05 2005-12-06 A method for producing a polarizing film, a polarizing plate, and an optical laminate

Country Status (4)

Country Link
JP (1) JP4581690B2 (en)
KR (1) KR101226364B1 (en)
CN (1) CN100501464C (en)
TW (1) TWI402157B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI500980B (en) * 2011-09-29 2015-09-21 Lg Chemical Ltd Device for controlling a color of polarizing film and method of controlling the same

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100932049B1 (en) * 2008-08-22 2009-12-15 주식회사 에이스 디지텍 Manufacturing method for polarizing film
CN102257044B (en) * 2008-12-18 2015-12-02 可乐丽股份有限公司 Polyvinyl alcohol film
CN101852879B (en) * 2009-03-30 2014-02-26 住友化学株式会社 Process for producing a polarizing film
WO2013084924A1 (en) * 2011-12-07 2013-06-13 住友化学株式会社 Method for producing polarizing film, method for producing polarizing plate, and polarizing plate
JP5722255B2 (en) * 2012-02-28 2015-05-20 住友化学株式会社 Manufacturing method of polarizing plate
JP6462199B2 (en) * 2012-12-04 2019-01-30 住友化学株式会社 Manufacturing method of polarizing film and polarizing plate
JP2016071349A (en) * 2014-09-30 2016-05-09 住友化学株式会社 Production method of polarizing laminate film and polarizing plate
KR20160088064A (en) * 2015-01-15 2016-07-25 동우 화인켐 주식회사 Polarizing plate and image display device comprising the same
JP5996714B2 (en) * 2015-05-01 2016-09-21 住友化学株式会社 Manufacturing method of resin plate or film with protective film
JP6733542B2 (en) 2015-09-30 2020-08-05 三菱ケミカル株式会社 Method for manufacturing polarizing film
JP2018091980A (en) * 2016-12-02 2018-06-14 住友化学株式会社 Polarizing film and manufacturing method of polarized laminate film
JP7058230B2 (en) * 2018-04-09 2022-04-21 日東電工株式会社 How to manufacture a extruder
JP7058231B2 (en) * 2018-04-09 2022-04-21 日東電工株式会社 How to manufacture a extruder
JP7316197B2 (en) * 2019-11-19 2023-07-27 日東電工株式会社 POLARIZING FILM MANUFACTURING METHOD, POLARIZING FILM MANUFACTURING DEVICE AND CONTROL SYSTEM
CN112248611B (en) * 2020-10-12 2022-10-04 深圳市盛波光电科技有限公司 Preparation method of polaroid

Family Cites Families (3)

* 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
JP2001174634A (en) * 1999-12-15 2001-06-29 Sumitomo Chem Co Ltd Method of producing polarizing film
JP4001336B2 (en) * 2002-11-07 2007-10-31 日東電工株式会社 Method for producing coated sheet

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI500980B (en) * 2011-09-29 2015-09-21 Lg Chemical Ltd Device for controlling a color of polarizing film and method of controlling the same
US9513419B2 (en) 2011-09-29 2016-12-06 Lg Chem, Ltd. Apparatus for controlling color of polarizing film and method of controlling the same

Also Published As

Publication number Publication date
JP2006189560A (en) 2006-07-20
CN100501464C (en) 2009-06-17
TWI402157B (en) 2013-07-21
KR20060080541A (en) 2006-07-10
JP4581690B2 (en) 2010-11-17
CN1800888A (en) 2006-07-12
KR101226364B1 (en) 2013-01-24

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