公开(公告)号：EP1389744A1

公开(公告)日：2004-02-18

申请号：EP03077402.0

申请日：2003-07-31

申请人： EASTMAN KODAK COMPANY

发明人： Haye, Shirleyanne E., Eastman Kodak Company ,  Huston, Janet Marie, Eastman Kodak Company

IPC分类号： G03C7/413 ,  G03C5/305

CPC分类号： G03C5/266 ,  G03C5/3053 ,  G03C7/413 ,  G03C2200/44

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 2000 to 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 1:1 to 20:1. These compositions can be used to process color photographic materials such as color photographic papers.

摘要翻译： 浓缩和加工强度的照相彩色显影组合物通过包含两种特定类型的钙离子螯合剂来稳定。 螯合剂之一是分子量为2000-100,000的聚电解质，例如多元羧酸或其盐。 另一种是非聚合氨基羧酸，多膦酸或其盐。 第一钙离子螯合剂与第二钙离子螯合剂的重量比为1:1至20:1。 这些组合物可用于处理彩色照相材料，如彩色相纸。