JPH10278056A5 - - Google Patents

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Publication number
JPH10278056A5
JPH10278056A5 JP1997090753A JP9075397A JPH10278056A5 JP H10278056 A5 JPH10278056 A5 JP H10278056A5 JP 1997090753 A JP1997090753 A JP 1997090753A JP 9075397 A JP9075397 A JP 9075397A JP H10278056 A5 JPH10278056 A5 JP H10278056A5
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JP
Japan
Prior art keywords
cellulose ester
producing
solution
ester film
casting
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.)
Pending
Application number
JP1997090753A
Other languages
Japanese (ja)
Other versions
JPH10278056A (en
Filing date
Publication date
Application filed filed Critical
Priority to JP9075397A priority Critical patent/JPH10278056A/en
Priority claimed from JP9075397A external-priority patent/JPH10278056A/en
Publication of JPH10278056A publication Critical patent/JPH10278056A/en
Publication of JPH10278056A5 publication Critical patent/JPH10278056A5/ja
Pending legal-status Critical Current

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Claims (14)

セルロースエステルを環状ジエーテル化合物を含有する溶媒に溶解した溶解液を支持体に流延させた後、剥離する工程を経て製膜するセルロースエステルフィルムの製造方法であって、該溶解液に、２重量％を越え１５重量％以下の水を含有せしめることを特徴とするセルロースエステルフィルムの製造方法。A method for producing a cellulose ester film, comprising dissolving a cellulose ester in a solvent containing a cyclic diether compound, casting the resulting solution onto a support, and then peeling the resulting solution to form a film, wherein the solution contains more than 2% by weight and not more than 15% by weight of water. 前記剥離する工程開始時の溶媒残留量が５０〜４５０重量％であることを特徴とする請求項１記載のセルロースエステルフィルムの製造方法。2. The method for producing a cellulose ester film according to claim 1, wherein the amount of the remaining solvent at the start of the peeling step is 50 to 450% by weight. 前記溶解液の支持体上への流延開始からセルロースエステルフィルムを剥離する工程開始時までの時間が、３秒〜２分であることを特徴とする請求項１又は２記載のセルロースエステルフィルムの製造方法。3. The method for producing a cellulose ester film according to claim 1, wherein the time from the start of casting the solution onto the support to the start of the step of peeling off the cellulose ester film is 3 seconds to 2 minutes. 前記剥離する工程開始時の支持体の表面温度が−７０〜４０℃であり溶媒残留量が１００〜４５０重量％であることを特徴とする請求項１、２又は３記載のセルロースエステルフィルムの製造方法。4. The method for producing a cellulose ester film according to claim 1, wherein the surface temperature of the support at the start of the peeling step is from -70 to 40[deg.] C. and the residual solvent amount is from 100 to 450% by weight. 前記支持体がキャスティングドラムであり、流延開始からセルロースエステルフィルムの剥離工程開始時までの時間が３〜４０秒であることを特徴とする請求項４記載のセルロースエステルフィルムの製造方法。5. The method for producing a cellulose ester film according to claim 4, wherein the support is a casting drum, and the time from the start of casting to the start of the peeling step of the cellulose ester film is 3 to 40 seconds. 前記剥離工程時の支持体の表面温度が０〜７５℃であり、溶媒残留量が５０〜１５０重量％であることを特徴とする請求項１、２又は３記載のセルロースエステルフィルムの製造方法。4. The method for producing a cellulose ester film according to claim 1, wherein the surface temperature of the support during the peeling step is 0 to 75[deg.] C. and the residual solvent amount is 50 to 150% by weight. 前記支持体がキャスティングベルトであり、流延開始から剥離工程開始時までの時間が２０〜１２０秒であることを特徴とする請求項４記載のセルロースエステルフィルムの製造方法。5. The method for producing a cellulose ester film according to claim 4, wherein the support is a casting belt, and the time from the start of casting to the start of the peeling step is 20 to 120 seconds. 前記溶解液に含有されるアルコール、ジエーテル環状化合物、水の合計が３０％以下となる溶解液を使用することを特徴とする請求項１〜７の何れか１項記載のセルロースエステルフィルムの製造方法。8. The method for producing a cellulose ester film according to claim 1, wherein the total content of the alcohol, the diether cyclic compound, and water in the dissolving solution is 30% or less. 前記溶解液の流延が重層キャスティングであることを特徴とする請求項１〜８のいずれか１項記載のセルロースエステルフィルムの製造方法。9. The method for producing a cellulose ester film according to claim 1, wherein the casting of the solution is a multilayer casting. 前記溶解液を支持体上に流延させた後、剥離し、テンターで保持し乾燥する工程を経て、残留溶媒量を３．５重量％以下とすることを特徴とする請求項１〜９のいずれか１項記載のセルロースエステルフィルムの製造方法。10. The method for producing a cellulose ester film according to claim 1, wherein the solution is cast onto a support, and then peeled off, held in a tenter and dried, so that the residual solvent content is 3.5% by weight or less. テンターで保持し乾燥する工程において、マイクロ波加熱することを特徴とする請求項１０記載のセルロースエステルフィルムの製造方法。11. The method for producing a cellulose ester film according to claim 10, wherein the film is heated by microwaves in the step of drying the film by holding it in a tenter. セルロースエステルを環状ジエーテル化合物を含有する溶媒に溶解した溶解液を支持体上に流延させた後、剥離する工程を経て製膜してセルロースエステルフィルムを製造する際、該溶解液が、２重量％を越え１５重量％以下の水を含有することを特徴とする製膜用溶解液組成物。A solution composition for film formation, which is a solution of cellulose ester dissolved in a solvent containing a cyclic diether compound, cast on a support, and then peeled off to form a film, is characterized in that the solution contains more than 2 wt % and not more than 15 wt % of water. セルロースエステルを環状ジエーテル化合物を含有する溶媒に溶解した溶解液を支持体上に流延させた後、剥離する工程を経て製膜したセルロースエステルフィルムであって、該溶解液が、２重量％を越え１５重量％までの水を含有することを特徴とするセルロースエステルフィルム。A cellulose ester film is produced by dissolving a cellulose ester in a solvent containing a cyclic diether compound, casting the solution onto a support, and then peeling the resultant film, wherein the solution contains more than 2% by weight and up to 15% by weight of water. 環状ジエーテル化合物を含有する溶媒を用いてセルロースエステルを溶解して製膜する際に、溶解液に可塑剤を含有させたことを特徴とする請求項１２記載の製膜用溶解液組成物。The film-forming solution composition according to claim 12, characterized in that a plasticizer is added to the solution when the cellulose ester is dissolved in a solvent containing a cyclic diether compound to form a film.
JP9075397A 1997-04-09 1997-04-09 Cellulose ester film, production method thereof, solution composition for film formation, and film base for photographic light-sensitive material using the same Pending JPH10278056A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9075397A JPH10278056A (en) 1997-04-09 1997-04-09 Cellulose ester film, production method thereof, solution composition for film formation, and film base for photographic light-sensitive material using the same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9075397A JPH10278056A (en) 1997-04-09 1997-04-09 Cellulose ester film, production method thereof, solution composition for film formation, and film base for photographic light-sensitive material using the same

Publications (2)

Publication Number Publication Date
JPH10278056A JPH10278056A (en) 1998-10-20
JPH10278056A5 true JPH10278056A5 (en) 2004-11-11

Family

ID=14007376

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9075397A Pending JPH10278056A (en) 1997-04-09 1997-04-09 Cellulose ester film, production method thereof, solution composition for film formation, and film base for photographic light-sensitive material using the same

Country Status (1)

Country Link
JP (1) JPH10278056A (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4568934B2 (en) * 2000-01-11 2010-10-27 コニカミノルタホールディングス株式会社 Optical film and manufacturing method thereof
JP4719984B2 (en) * 2001-01-30 2011-07-06 コニカミノルタホールディングス株式会社 Method for producing cellulose ester film
JP4730503B2 (en) * 2001-09-05 2011-07-20 コニカミノルタホールディングス株式会社 Method for producing cellulose ester film
JP4542833B2 (en) * 2003-06-23 2010-09-15 富士フイルム株式会社 Dope manufacturing apparatus, manufacturing method, solution casting method, and product
JP2009120839A (en) * 2008-12-11 2009-06-04 Konica Minolta Holdings Inc Method for manufacturing cellulose ester film, and cellulose ester film
JP5648680B2 (en) * 2010-03-18 2015-01-07 コニカミノルタ株式会社 Cellulose ester film, method for producing the same, polarizing plate and liquid crystal display device provided with the same
WO2023038080A1 (en) * 2021-09-13 2023-03-16 コニカミノルタ株式会社 Method for producing optical film and device for producing optical film

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