发明公开
EP0762200A1 Method and device for the selective extraction of halide ions from photographic baths
失效
为卤化物离子从照相溶液中选择性提取的方法和装置
- 专利标题： Method and device for the selective extraction of halide ions from photographic baths
- 专利标题（中）： 为卤化物离子从照相溶液中选择性提取的方法和装置
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申请号： EP96420266.7申请日： 1996-08-05
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公开(公告)号： EP0762200A1公开(公告)日： 1997-03-12
- 发明人: Martin, Didier Jean , Guizard, Christian Gilbert , Diaz, Jean-François
- 申请人： KODAK-PATHE , EASTMAN KODAK COMPANY
- 申请人地址： 26, rue Villiot F-75594 Paris Cedex 12 FR
- 专利权人： KODAK-PATHE,EASTMAN KODAK COMPANY
- 当前专利权人： KODAK-PATHE,EASTMAN KODAK COMPANY
- 当前专利权人地址： 26, rue Villiot F-75594 Paris Cedex 12 FR
- 代理机构： Fevrier, Murielle Françoise E.
- 优先权： FR9509897 19950811
- 主分类号： G03C5/395
- IPC分类号： G03C5/395 ; G03C7/44 ; B01D61/02
摘要：
The invention concerns a method and a device for extracting the halide ions from fixing or bleaching/fixing photographic solutions containing mainly thiosulphate as the fixing agent, bringing the solutions into contact with a nanofiltration module including at least two membranes of different types.
The method enables the activity of the fixing or bleaching/fixing baths to be extended during the processing of photographic products.
The method enables the activity of the fixing or bleaching/fixing baths to be extended during the processing of photographic products.
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