发明名称 |
Photographic color developer compositions |
摘要 |
An hydroxylamine and a member selected from the group consisting of alkanolamines which are free of carboxyl substitution, aliphatic monoamino monocarboxylic acids of up to three carbon atoms, and aminobenzoic acids, are employed in combination in a photographic color developing composition comprising a primary aromatic amino color developing agent for the purpose of retarding aerial oxidation of the developing agent. This combination can be used to replace all or part of the sulfite that is commonly employed in color developers, to thereby avoid or reduce the disadvantages resulting from the fact that sulfite competes with couplers for oxidized developing agent.
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申请公布号 |
US4170478(A) |
申请公布日期 |
1979.10.09 |
申请号 |
US19780884086 |
申请日期 |
1978.03.06 |
申请人 |
EASTMAN KODAK |
发明人 |
CASE, NELSON S;WYATT, DANNY L |
分类号 |
G03C7/30;G03C7/413;(IPC1-7):G03C5/30 |
主分类号 |
G03C7/30 |
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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