发明公开
EP0805377A1 Method for improving the archival properties of a photographic film having a cellulose ester type support
失效
Verfahren zur Verbesserung derLagerfähigkeiteines photoischen Filmes mit Celluloseester-Träger
- 专利标题： Method for improving the archival properties of a photographic film having a cellulose ester type support
- 专利标题（中）： Verfahren zur Verbesserung derLagerfähigkeiteines photoischen Filmes mit Celluloseester-Träger
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申请号： EP97420067.7申请日： 1997-04-21
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公开(公告)号： EP0805377A1公开(公告)日： 1997-11-05
- 发明人: Poncelet, Olivier Jean Christian , Rigola, Jeannine , Mekki, Boualem
- 申请人： EASTMAN KODAK COMPANY
- 申请人地址： 343 State Street Rochester, New York 14650-2201 US
- 专利权人： EASTMAN KODAK COMPANY
- 当前专利权人： EASTMAN KODAK COMPANY
- 当前专利权人地址： 343 State Street Rochester, New York 14650-2201 US
- 代理机构： Parent, Yves
- 优先权： FR9605591 19960429
- 主分类号： G03C11/08
- IPC分类号： G03C11/08 ; G03C1/85
摘要：
The present invention has as its object a method for improving the conservation of a photographic product with a cellulose ester type support.
This method consists of treating the said support or the said photographic product with a transparent film-forming aqueous composition. The said composition comprises a fibrous alumino-silicate polymer of formula Al x Si y O z in which x:y is between 1 and 3, and z is between 2 and 6.
The method can be implemented in a number of ways. The said support can be treated before the application of the photographic layers (as a substratum or under-layer) or after the application of the photographic layers (as a top layer). It is also possible to treat an exposed, developed film by applying a top layer of the said composition.
This method consists of treating the said support or the said photographic product with a transparent film-forming aqueous composition. The said composition comprises a fibrous alumino-silicate polymer of formula Al x Si y O z in which x:y is between 1 and 3, and z is between 2 and 6.
The method can be implemented in a number of ways. The said support can be treated before the application of the photographic layers (as a substratum or under-layer) or after the application of the photographic layers (as a top layer). It is also possible to treat an exposed, developed film by applying a top layer of the said composition.
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