发明名称 |
Process for development of black-and-white- silver halide photographic material |
摘要 |
The present invention improves the running stability of a developer comprising an ascorbic acid instead of hydroquinone as a developing agent. The present invention provides a process for development of a black-and-white silver halide photographic material, which comprises use of a development replenisher for black-and-white silver halide photographic material comprising an ascorbic acid and/or derivative thereof which has a pH value of at least 0.5 higher than that of the development starting solution.
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申请公布号 |
US5503965(A) |
申请公布日期 |
1996.04.02 |
申请号 |
US19940312804 |
申请日期 |
1994.09.27 |
申请人 |
FUJI PHOTO FILM CO., LTD. |
发明人 |
OKUTSU, EIICHI |
分类号 |
G03C5/29;G03C1/005;G03C1/035;G03C5/30;G03C5/305;G03C5/31;(IPC1-7):G03C5/18;G03C5/26 |
主分类号 |
G03C5/29 |
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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