JP2013148806A5 - - Google Patents
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- Publication number
- JP2013148806A5 JP2013148806A5 JP2012010757A JP2012010757A JP2013148806A5 JP 2013148806 A5 JP2013148806 A5 JP 2013148806A5 JP 2012010757 A JP2012010757 A JP 2012010757A JP 2012010757 A JP2012010757 A JP 2012010757A JP 2013148806 A5 JP2013148806 A5 JP 2013148806A5
- Authority
- JP
- Japan
- Prior art keywords
- polyvinyl alcohol
- primary drying
- range
- polarizing film
- film
- 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
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- 238000001035 drying Methods 0.000 claims 9
- 239000004372 Polyvinyl alcohol Substances 0.000 claims 7
- 229920002451 polyvinyl alcohol Polymers 0.000 claims 7
- 238000004519 manufacturing process Methods 0.000 claims 6
- 239000011347 resin Substances 0.000 claims 5
- 229920005989 resin Polymers 0.000 claims 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims 5
- 238000000034 method Methods 0.000 claims 4
- 238000005406 washing Methods 0.000 claims 4
- KGBXLFKZBHKPEV-UHFFFAOYSA-N Boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 claims 2
- 238000010521 absorption reaction Methods 0.000 claims 2
- 238000010306 acid treatment Methods 0.000 claims 2
- 239000004327 boric acid Substances 0.000 claims 2
- PNDPGZBMCMUPRI-UHFFFAOYSA-N iodine Chemical compound II PNDPGZBMCMUPRI-UHFFFAOYSA-N 0.000 claims 2
- 229910052740 iodine Inorganic materials 0.000 claims 2
- 239000011630 iodine Substances 0.000 claims 2
- 229920002456 HOTAIR Polymers 0.000 claims 1
- 238000007664 blowing Methods 0.000 claims 1
- 238000005885 boration reaction Methods 0.000 claims 1
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 claims 1
- 229910052796 boron Inorganic materials 0.000 claims 1
- 238000004043 dyeing Methods 0.000 claims 1
- 230000001678 irradiating Effects 0.000 claims 1
- 239000011241 protective layer Substances 0.000 claims 1
Claims (8)
て、
ホウ素含有量が１〜３.５重量％の範囲内にあり、
吸収軸方向を長辺とする２mm×１０mmの大きさに裁断し、８０℃で４時間加熱したとき
に、その吸収軸方向への収縮力が２.８Ｎ以下であり、かつ
直交色相のｂ値が−２.２〜＋０.５の範囲内にあることを特徴とする偏光フィルム。 A polarizing film in which iodine is adsorbed and oriented on a polyvinyl alcohol resin film,
The boron content is in the range of 1 to 3.5% by weight,
When cut to a size of 2 mm x 10 mm with the absorption axis direction as the long side and heated at 80 ° C for 4 hours, the contraction force in the absorption axis direction is 2.8 N or less, and the b value of the orthogonal hue Is in the range of −2.2 to +0.5.
請求項１に記載の偏光フィルム。 The shrinkage force is 2.1 N or less, and the b value of the orthogonal hue is in the range of −1.0 to 0.
The polarizing film according to claim 1.
酸処理工程及び水洗工程をこの順に施し、かつ前記ホウ酸処理工程又はそれより前の段階
において一軸延伸する延伸工程を施し、
前記ホウ酸処理工程と前記水洗工程との間に前記ポリビニルアルコール系樹脂フィルム
を乾燥する一次乾燥工程を施して、偏光フィルムを製造する方法であって、
前記一次乾燥工程は、該一次乾燥工程に入る直前のポリビニルアルコール系樹脂フィル
ムの水分率をＷ 0 、該一次乾燥工程を経た後、水洗工程に入る前のポリビニルアルコール
系樹脂フィルムの水分率をＷ 1 としたときに、下式（１）：
水分減少率＝〔（Ｗ 0 −Ｗ 1 ）／Ｗ 0 〕×１００ （１）
で示される水分減少率が５〜９５重量％の範囲内となるように行われる、
偏光フィルムの製造方法。 The polyvinyl alcohol resin film is subjected to a dyeing process for adsorbing iodine, a boric acid treatment process, and a water washing process in this order, and a uniaxial stretching process is performed in the boric acid treatment process or in the previous stage. ,
Provide Reinforced primary drying step of drying the polyvinyl alcohol film between the washing step and the boration step, a method for producing a polarizing film,
The primary drying step is a polyvinyl alcohol-based resin film immediately before entering the primary drying step.
The water content of water is W 0 , and after passing through the primary drying step, polyvinyl alcohol before entering the water washing step
The moisture content of the system resin film is taken as W 1, the following equation (1):
Moisture reduction rate = [(W 0 −W 1 ) / W 0 ] × 100 (1)
Is carried out so that the moisture reduction rate indicated by is in the range of 5 to 95% by weight,
A method for producing a polarizing film.
る、請求項３に記載の製造方法。 The said primary drying process is a manufacturing method of Claim 3 performed so that the said moisture reduction rate may exist in the range of 30 to 80 weight%.
に記載の製造方法。 The said primary drying process is performed at the temperature of 40-300 degreeC for 1 to 100 second, The Claim 3 or 4
The manufacturing method as described in.
付ける手段、発熱部材に直接接触させる手段、及び輻射エネルギーを照射する手段からな
る群より選ばれる少なくとも一つの手段によって行われる、請求項３〜５のいずれかに記
載の製造方法。 The primary drying step is performed by at least one means selected from the group consisting of a means for blowing hot air, a means for directly contacting the heat generating member, and a means for irradiating radiation energy to the polyvinyl alcohol-based resin film. The manufacturing method in any one of Claims 3-5 .
工程を施す、請求項３〜６のいずれかに記載の製造方法。 The relative water washing step wherein the polyvinyl alcohol film after undergoing, subjected to final drying step, the production method according to any one of claims 3-6.
た透明保護層とを備えることを特徴とする偏光板。 A polarizing plate comprising the polarizing film according to claim 1 and a transparent protective layer formed on at least one surface of the polarizing film.
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2012010757A JP5831249B2 (en) | 2012-01-23 | 2012-01-23 | Polarizing film, method for producing the same, and polarizing plate |
| PCT/JP2013/051680 WO2013111892A1 (en) | 2012-01-23 | 2013-01-21 | Polarizing film, method for manufacturing same, and polarizing plate |
| CN201711215716.3A CN107861183B (en) | 2012-01-23 | 2013-01-21 | Polarizing film, method for producing same, and polarizing plate |
| KR1020147020163A KR101926902B1 (en) | 2012-01-23 | 2013-01-21 | Polarizing film, method for manufacturing same, and polarizing plate |
| CN201380006145.6A CN104094141B (en) | 2012-01-23 | 2013-01-21 | Polarizing coating and its manufacture method and polarization plates |
| TW102102257A TWI582473B (en) | 2012-01-23 | 2013-01-21 | Polarizing film and its manufacturing method and polarizing plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2012010757A JP5831249B2 (en) | 2012-01-23 | 2012-01-23 | Polarizing film, method for producing the same, and polarizing plate |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2013148806A JP2013148806A (en) | 2013-08-01 |
| JP2013148806A5 true JP2013148806A5 (en) | 2015-02-19 |
| JP5831249B2 JP5831249B2 (en) | 2015-12-09 |
Family
ID=48873603
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2012010757A Active JP5831249B2 (en) | 2012-01-23 | 2012-01-23 | Polarizing film, method for producing the same, and polarizing plate |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JP5831249B2 (en) |
| KR (1) | KR101926902B1 (en) |
| CN (2) | CN104094141B (en) |
| TW (1) | TWI582473B (en) |
| WO (1) | WO2013111892A1 (en) |
Families Citing this family (41)
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|---|---|---|---|---|
| CN104640912B (en) * | 2012-09-26 | 2019-07-26 | 株式会社可乐丽 | Polyvinyl alcohol film and polarizing coating |
| CN105518562B (en) * | 2013-09-12 | 2017-10-27 | Lg化学株式会社 | Device for preparing polarizing coating |
| JPWO2015111472A1 (en) * | 2014-01-23 | 2017-03-23 | 日本化薬株式会社 | Display device provided with base material having polarization function |
| KR101938410B1 (en) * | 2014-02-26 | 2019-01-15 | 동우 화인켐 주식회사 | Method of preparing polarizer |
| JP6219781B2 (en) * | 2014-05-23 | 2017-10-25 | 住友化学株式会社 | Polarizing film, polarizing plate and liquid crystal panel |
| JP5871408B1 (en) | 2014-09-19 | 2016-03-01 | 日東電工株式会社 | Polarizing plate and optical laminate |
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| JPWO2017006769A1 (en) * | 2015-07-07 | 2018-04-26 | 日本合成化学工業株式会社 | Polyvinyl alcohol polarizing film and polarizing plate |
| JP2017040880A (en) * | 2015-08-21 | 2017-02-23 | 住友化学株式会社 | Method of manufacturing polarizing film |
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| TWI746615B (en) | 2016-08-18 | 2021-11-21 | 日商住友化學股份有限公司 | Method for manufacturing polarizing film, manufacturing apparatus and polarizing film |
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-
2012
- 2012-01-23 JP JP2012010757A patent/JP5831249B2/en active Active
-
2013
- 2013-01-21 KR KR1020147020163A patent/KR101926902B1/en active IP Right Grant
- 2013-01-21 CN CN201380006145.6A patent/CN104094141B/en active Active
- 2013-01-21 WO PCT/JP2013/051680 patent/WO2013111892A1/en active Application Filing
- 2013-01-21 CN CN201711215716.3A patent/CN107861183B/en active Active
- 2013-01-21 TW TW102102257A patent/TWI582473B/en active
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