KR970065877A - Method for producing dye-based polarizing film - Google Patents

Method for producing dye-based polarizing film Download PDF

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Publication number
KR970065877A
KR970065877A KR1019960008325A KR19960008325A KR970065877A KR 970065877 A KR970065877 A KR 970065877A KR 1019960008325 A KR1019960008325 A KR 1019960008325A KR 19960008325 A KR19960008325 A KR 19960008325A KR 970065877 A KR970065877 A KR 970065877A
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KR
South Korea
Prior art keywords
direct
polarizing film
dye
treatment
based polarizing
Prior art date
Application number
KR1019960008325A
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Korean (ko)
Inventor
조재은
김순식
임대우
Original Assignee
한형수
제일합섬 주식회사
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.)
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Application filed by 한형수, 제일합섬 주식회사 filed Critical 한형수
Priority to KR1019960008325A priority Critical patent/KR970065877A/en
Publication of KR970065877A publication Critical patent/KR970065877A/en

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Abstract

본 발명은 액정표시장치에 사용되는 염료계 편광필름에서 여러가지 직접 염료를 혼합하여 요오드계와 비슷한 수준의 높은 편광도를 지니고 뉴트럴 그레이 칼라를 띠는 편광필름의 제조법에 관한 것으로서, 구체적으로는 전처리된 PVA 필름을 DIRECT YELLOW, DIRECT BLUE, DIRECT RED 및 DIRECT BLACK을 적정비율로 혼합한 직접 염료에 넣어 염색하고 붕산 수용액 처리 등 후처리 공정을 거쳐 제조되는 것을 특징으로 한 것이다.The present invention relates to a method for producing a polarizing film having a neutral gray color by mixing various direct dyes in a dye-based polarizing film used in a liquid crystal display device and having a high degree of polarization similar to that of iodine-based ones. More specifically, The film is dyed in a direct dye mixed with a proper ratio of DIRECT YELLOW, DIRECT BLUE, DIRECT RED and DIRECT BLACK, followed by post-treatment such as treatment with an aqueous solution of boric acid.

이와 같이 제조되는 편광필름은 편광도와 투과도가 우수하고 고이색성을 지니는 장점이 있다.The polarizing film thus produced has an advantage of excellent polarization and transmittance and high dichroism.

Description

염료계 편광필름 제조방법Method for producing dye-based polarizing film

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is a trivial issue, I did not include the contents of the text.

Claims (3)

전처리된 PVA 필름을 DIRECT YELLOW, DIRECT BLUE, DIRECT RED 및 DIRECT BLACK을 1 : 0.2-0.8 : 0.3-0.9-0.5의 비율로 혼합한 직접 염료에 넣어 염색한 후 수세하고, 붕산 수용액으로 처리한 후 후처리 공정을 거쳐 제조되는 것을 특징으로 하는 염료계 편광필름 제조방법.DIRECT YELLOW, DIRECT BLUE, DIRECT RED, and DIRECT BLACK were mixed in a ratio of 1: 0.2-0.8: 0.3-0.9-0.5. The pretreated PVA film was dyed, washed with water, treated with an aqueous boric acid solution Wherein the polarizing plate is manufactured through a treatment process. 제1항에 있어서, 직접염료는 작용기로 OH기를 지닌 것임을 특징으로 하는 염료계 편광필름 제조방법.The method of claim 1, wherein the direct dye is a functional group having an OH group. 제1항에 있어서, 직접염료는 선형구조에 방향족 고리가 동일평면상에 있는 것임을 특징으로 하는 염료계 편광필름 제조방법.The method according to claim 1, wherein the direct dye has a linear structure and the aromatic rings are coplanar. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: It is disclosed by the contents of the first application.
KR1019960008325A 1996-03-26 1996-03-26 Method for producing dye-based polarizing film KR970065877A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019960008325A KR970065877A (en) 1996-03-26 1996-03-26 Method for producing dye-based polarizing film

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019960008325A KR970065877A (en) 1996-03-26 1996-03-26 Method for producing dye-based polarizing film

Publications (1)

Publication Number Publication Date
KR970065877A true KR970065877A (en) 1997-10-13

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KR1019960008325A KR970065877A (en) 1996-03-26 1996-03-26 Method for producing dye-based polarizing film

Country Status (1)

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KR (1) KR970065877A (en)

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