发明名称 |
Photographic developing compositions and use thereof in the processing of photographic elements |
摘要 |
Photographic developing compositions are provided that are free of dihydroxybenzene developing agents and are used in the processing of photographic elements. The developing compositions have a pH in the range of from 10.1 to 10.9 and comprise at least 0.17 moles per liter of an ascorbic acid developing agent, 0.3 to 0.5 moles per liter of a sulfite and 0.2 to 0.4 moles per liter of a carbonate buffer. Also provided is an ecologically advantageous method for processing photographic elements which utilizes the non-toxic developing compositions.
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申请公布号 |
US5792598(A) |
申请公布日期 |
1998.08.11 |
申请号 |
US19960623344 |
申请日期 |
1996.03.27 |
申请人 |
INTERNATIONAL PAPER COMPANY |
发明人 |
ADAE-AMOAKOH, SYLVIA;RESNICK, BRUCE MEL |
分类号 |
G03C5/26;G03C5/30;G03C5/305;G03C5/38;(IPC1-7):G03C5/29 |
主分类号 |
G03C5/26 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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