KR100998144B1 - 폴리비닐 알콜 필름의 제조방법 및 이를 이용한 편광필름 - Google Patents
폴리비닐 알콜 필름의 제조방법 및 이를 이용한 편광필름 Download PDFInfo
- Publication number
- KR100998144B1 KR100998144B1 KR1020030100189A KR20030100189A KR100998144B1 KR 100998144 B1 KR100998144 B1 KR 100998144B1 KR 1020030100189 A KR1020030100189 A KR 1020030100189A KR 20030100189 A KR20030100189 A KR 20030100189A KR 100998144 B1 KR100998144 B1 KR 100998144B1
- Authority
- KR
- South Korea
- Prior art keywords
- film
- polyvinyl alcohol
- roll
- winding
- cylindrical core
- Prior art date
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-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/18—Manufacture of films or sheets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C41/00—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor
- B29C41/24—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor for making articles of indefinite length
- B29C41/26—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor for making articles of indefinite length by depositing flowable material on a rotating drum
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/30—Polarising elements
- G02B5/3025—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state
- G02B5/3033—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state in the form of a thin sheet or foil, e.g. Polaroid
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2329/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an alcohol, ether, aldehydo, ketonic, acetal, or ketal radical; Hydrolysed polymers of esters of unsaturated alcohols with saturated carboxylic acids; Derivatives of such polymer
- C08J2329/02—Homopolymers or copolymers of unsaturated alcohols
- C08J2329/04—Polyvinyl alcohol; Partially hydrolysed homopolymers or copolymers of esters of unsaturated alcohols with saturated carboxylic acids
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L29/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an alcohol, ether, aldehydo, ketonic, acetal or ketal radical; Compositions of hydrolysed polymers of esters of unsaturated alcohols with saturated carboxylic acids; Compositions of derivatives of such polymers
- C08L29/02—Homopolymers or copolymers of unsaturated alcohols
- C08L29/04—Polyvinyl alcohol; Partially hydrolysed homopolymers or copolymers of esters of unsaturated alcohols with saturated carboxylic acids
Abstract
Description
실시예 | 비교 실시예 | |||||||
1 | 2 | 3 | 4 | 5 | 1 | 2 | 3 | |
폴리비닐 알콜 필름 | ||||||||
주름의 존재 | ○ | ○ | ○ | ○ | ○ | × | × | × |
불균일 염색 | ○ | ○ | ○ | ○ | ○ | × | × | × |
편광 특성 | ||||||||
전송(%) | 42.8 | 42.7 | 42.7 | 42.8 | 42.7 | 42.6 | 42.4 | 42.6 |
편광도(%) | 99.2 | 99.1 | 99.0 | 99.2 | 99.0 | 97.6 | 96.8 | 97.6 |
Claims (5)
- 편광필름으로 사용되기 위한 폴리비닐알콜 필름의 제조방법으로서, 폴리비닐 알콜 수지 용액으로부터 0.5 내지 7중량%의 함수율을 갖는 폴리비닐 알콜 필름을 형성시키는 단계, 및 원통형 코어의 인접부에 가이드 롤을 배치하고 상기 원통형 코어 주변에 상기 필름을 권취하는 단계를 포함하며,여기서 상기 권취 단계는 상기 코어와 가이드 롤 사이에 공간이 유지된 상태 또는 상기 가이드 롤이 회전 필름을 통해 원통형 코어와 접촉된 상태에서 상기 필름이 상기 코어와 가이드 롤 사이의 필름을 통과하여 원통형 코어 주변에 권취되며, 상기 권취 단계 이후에 얻어진 필름 롤의 표면 경도는 25℃ 및 55%RH 조건하에서 JIS K6301에 따라 측정된 60 내지 95의 쇼어(Shore) A 경도이며, 상기 원통형 코어는 알루미늄으로 제조되고, 상기 폴리비닐 알콜 필름의 두께가 30∼90㎛인 것을 특징으로 하는 폴리비닐 알콜 필름의 제조방법.
- 삭제
- 삭제
- 제1항에 있어서, 상기 가이드 롤은 크라운 롤인 것을 특징으로 하는 방법.
- 삭제
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020030100189A KR100998144B1 (ko) | 2003-12-30 | 2003-12-30 | 폴리비닐 알콜 필름의 제조방법 및 이를 이용한 편광필름 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020030100189A KR100998144B1 (ko) | 2003-12-30 | 2003-12-30 | 폴리비닐 알콜 필름의 제조방법 및 이를 이용한 편광필름 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20050068591A KR20050068591A (ko) | 2005-07-05 |
KR100998144B1 true KR100998144B1 (ko) | 2010-12-02 |
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KR1020030100189A KR100998144B1 (ko) | 2003-12-30 | 2003-12-30 | 폴리비닐 알콜 필름의 제조방법 및 이를 이용한 편광필름 |
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Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH05310346A (ja) * | 1992-05-07 | 1993-11-22 | Sekisui Chem Co Ltd | フイルム巻取り方法及び巻取り装置及びそれによって得られる巻取り製品 |
JPH05337967A (ja) * | 1992-06-11 | 1993-12-21 | Kuraray Co Ltd | ポリビニルアルコール系重合体フィルムの製造方法 |
KR20010104259A (ko) * | 2000-05-12 | 2001-11-24 | 나카무라 하사오 | 폴리비닐알코올계 필름 및 편광필름 |
KR20030051285A (ko) * | 2001-12-17 | 2003-06-25 | 가부시키가이샤 구라레 | 폴리비닐 알콜 필름 및 편광막 |
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2003
- 2003-12-30 KR KR1020030100189A patent/KR100998144B1/ko active IP Right Grant
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH05310346A (ja) * | 1992-05-07 | 1993-11-22 | Sekisui Chem Co Ltd | フイルム巻取り方法及び巻取り装置及びそれによって得られる巻取り製品 |
JPH05337967A (ja) * | 1992-06-11 | 1993-12-21 | Kuraray Co Ltd | ポリビニルアルコール系重合体フィルムの製造方法 |
KR20010104259A (ko) * | 2000-05-12 | 2001-11-24 | 나카무라 하사오 | 폴리비닐알코올계 필름 및 편광필름 |
KR20030051285A (ko) * | 2001-12-17 | 2003-06-25 | 가부시키가이샤 구라레 | 폴리비닐 알콜 필름 및 편광막 |
Also Published As
Publication number | Publication date |
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KR20050068591A (ko) | 2005-07-05 |
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