发明名称 |
DEVELOPER SOLUTION FOR EXPOSED SILVER HALIDE CONTAINING AN ORGANIC THIOL OR THIONE COMPOUND AND A BUNTE SALT |
摘要 |
<p>8-11657/TEL 186/+ Process for the prevention of darkening and the formation of a sediment in photographic developer solutions A process is described for the prevention of darkening and the formation of a sediment in photographic developer solutions which contain a silver halide developer, a water-soluble silver halide solvent and organic sulfur compounds. The organic sulfur compounds are a combination of (a) an organic thiol compound or thione compound capable of tautomerism and (b) a Bunte salt which contains groups conferring solubility in water. Developer solutions which contain the indicated combination of sulfur compounds are outstandingly stable.</p> |
申请公布号 |
CA1152800(A) |
申请公布日期 |
1983.08.30 |
申请号 |
CA19790324106 |
申请日期 |
1979.03.26 |
申请人 |
CIBA-GEIGY AG |
发明人 |
KRAMP, EKKEHARD;LENOIR, JOHN;MARTHALER, MAX |
分类号 |
G03C5/30;G03C5/26;G03C5/29;G03C5/305;G03C7/30;(IPC1-7):G03C5/30 |
主分类号 |
G03C5/30 |
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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