JP2017107239A5 - - Google Patents

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JP2017107239A5
JP2017107239A5 JP2017039850A JP2017039850A JP2017107239A5 JP 2017107239 A5 JP2017107239 A5 JP 2017107239A5 JP 2017039850 A JP2017039850 A JP 2017039850A JP 2017039850 A JP2017039850 A JP 2017039850A JP 2017107239 A5 JP2017107239 A5 JP 2017107239A5
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polyvinyl alcohol
staining
absorbance
producing
solution
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JP2017039850A
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JP2017107239A (en
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熱可塑性樹脂基材の上に形成され、厚みが１０μｍ以下であるポリビニルアルコール系樹脂フィルムを、二色性色素を含む染色液に浸漬することによって、前記ポリビニルアルコール系樹脂フィルムを染色する染色工程と、
前記染色液の一部をサンプルとして抜き出し、このサンプルの吸光度を測定することによって、前記染色液中に溶解したポリビニルアルコールを定量的に分析する分析工程とを含み、
前記染色液は、架橋剤を含有する偏光子の製造方法。 Is formed on a thermoplastic resin substrate, a polyvinyl alcohol-based resin film thickness is 10μm or less by immersion in a dye solution containing a dichroic dye, staining the polyvinyl alcohol film dyeing process When,
An analytical step of quantitatively analyzing polyvinyl alcohol dissolved in the staining solution by extracting a part of the staining solution as a sample and measuring the absorbance of the sample,
The dyeing solution is a method for producing a polarizer containing a crosslinking agent. 前記分析工程において、前記染色液から前記サンプルを定期的に抜き出し、各サンプルの吸光度を測定すると共に、測定された各サンプルの吸光度のうち、特定波長での吸光度の経時的な変化に基づいて、前記染色液中に溶解したポリビニルアルコールを定量的に分析する請求項１に記載の偏光子の製造方法。 In the analysis step, the sample is periodically extracted from the staining solution, and the absorbance of each sample is measured, and among the measured absorbance of each sample, based on the change over time in absorbance at a specific wavelength, The method for producing a polarizer according to claim 1, wherein polyvinyl alcohol dissolved in the staining solution is quantitatively analyzed. 前記特定波長として、波長５００〜７００ｎｍの中から少なくとも一の波長を選択する請求項２に記載の偏光子の製造方法。   The method for manufacturing a polarizer according to claim 2, wherein at least one wavelength is selected from wavelengths of 500 to 700 nm as the specific wavelength. 前記架橋剤は、ホウ素化合物である請求項１〜３の何れか一項に記載の偏光子の製造方法。   The method for producing a polarizer according to claim 1, wherein the crosslinking agent is a boron compound. 前記ホウ素化合物は、ホウ酸である請求項４に記載の偏光子の製造方法。   The method for producing a polarizer according to claim 4, wherein the boron compound is boric acid. 前記架橋剤の濃度は、０．０１〜０．１重量部である請求項１〜５の何れか一項に記載の偏光子の製造方法。 The method for producing a polarizer according to any one of claims 1 to 5 , wherein the concentration of the crosslinking agent is 0.01 to 0.1 parts by weight. 前記二色性色素は、ヨウ素である請求項１〜６の何れか一項に記載の偏光子の製造方法。 The method for producing a polarizer according to any one of claims 1 to 6 , wherein the dichroic dye is iodine. 前記二色性色素の濃度は、０．０１〜１０重量部である請求項１〜７の何れか一項に記載の偏光子の製造方法。 The concentration of the dichroic dye, the production method of a polarizer according to any one of claim 1 to 7, which is 0.01 to 10 parts by weight. 前記染色液は、ヨウ化カリウムを含有する請求項１〜８の何れか一項に記載の偏光子の製造方法。 The said dyeing | staining liquid is a manufacturing method of the polarizer as described in any one of Claims 1-8 containing potassium iodide. 熱可塑性樹脂基材の上に形成され、厚みが１０μｍ以下であるポリビニルアルコール系樹脂フィルムを、二色性色素を含む染色液に浸漬することによって、前記ポリビニルアルコール系樹脂フィルムを染色したときの前記染色液中に溶解したポリビニルアルコールを検出するポリビニルアルコールの検出方法であって、
前記ポリビニルアルコール系樹脂フィルムを染色する前に、前記染色液の吸光度を測定するステップと、
前記染色液に架橋剤を含有させることによって、前記ポリビニルアルコール系樹脂フィルムから前記染色液中に溶解したポリビニルアルコールを架橋するステップと、
前記ポリビニルアルコール系樹脂フィルムを染色した後に、前記染色液の吸光度を測定するステップと、
前記染色前に測定した染色液の吸光度と前記染色後に測定した染色液の吸光度との変化に基づいて、前記染色液中に溶解したポリビニルアルコールを定量化するステップとを含むポリビニルアルコールの検出方法。 Is formed on a thermoplastic resin substrate, the thickness is 10μm or less polyvinyl alcohol-based resin film, by immersing the staining solution containing a dichroic dye, when stained the polyvinyl alcohol resin film A method of detecting polyvinyl alcohol for detecting polyvinyl alcohol dissolved in the staining solution,
Measuring the absorbance of the dye solution before dyeing the polyvinyl alcohol resin film;
Crosslinking the polyvinyl alcohol dissolved in the staining liquid from the polyvinyl alcohol- based resin film by including a crosslinking agent in the staining liquid;
After dyeing the polyvinyl alcohol- based resin film, measuring the absorbance of the staining solution;
A method of detecting polyvinyl alcohol, comprising: quantifying polyvinyl alcohol dissolved in the staining liquid based on a change between the absorbance of the staining liquid measured before the staining and the absorbance of the staining liquid measured after the staining.
JP2017039850A 2015-11-27 2017-03-02 Polarizer manufacturing method and polyvinyl alcohol detection method Pending JP2017107239A (en)

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JP2017107239A5 true JP2017107239A5 (en) 2019-10-03

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KR (2) KR101754540B1 (en)
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CN111337442A (en) * 2020-03-24 2020-06-26 安徽皖维高新材料股份有限公司 Method for measuring PVA optical film dissolution amount

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JP3588308B2 (en) * 2000-05-01 2004-11-10 株式会社クラレ Method for producing polyvinyl alcohol film
JP4362211B2 (en) * 2000-06-28 2009-11-11 株式会社クラレ Manufacturing method of polarizing film
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