发明名称 Photographic color developing composition containing calcium ion sequestering agent combination and method of use
摘要 Concentrated and working strength photographic color developing compositions are stabilized with the inclusion of two specific types of calcium ion sequestering agents. One of the sequestering agents is a polyelectrolyte such as a polycarboxylic acid or salt thereof having a molecular weight of from about 2000 to about 100,000. The other one is a non-polymeric aminocarboxylic acid, polyphosphonic acid, or a salt thereof. The weight ratio of the first calcium ion sequestering agent to the second calcium ion sequestering agent is from about 1:1 to about 20:1. These compositions can be used to process color photographic materials such as color photographic papers.
申请公布号 US6803179(B2) 申请公布日期 2004.10.12
申请号 US20030639538 申请日期 2003.08.12
申请人 EASTMAN KODAK COMPANY 发明人 HAYE SHIRLEYANNE E.;HUSTON JANET M.
分类号 G03C7/407;G03C5/26;G03C5/305;G03C7/413;(IPC1-7):G03C7/413 主分类号 G03C7/407
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