TW200631768A - Method for manufacturing polarized film, polarizing plate and optical laminate - Google Patents
Method for manufacturing polarized film, polarizing plate and optical laminateInfo
- 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
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.
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)
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)
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)
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 |
-
2005
- 2005-01-05 JP JP2005000525A patent/JP4581690B2/en active Active
- 2005-12-06 TW TW094143029A patent/TWI402157B/en active
-
2006
- 2006-01-03 KR KR1020060000546A patent/KR101226364B1/en active IP Right Grant
- 2006-01-04 CN CNB2006100036070A patent/CN100501464C/en active Active
Cited By (2)
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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