Color developer solution, concentrated composition thereof for use in silver halide color photographic material and processing method
AssigneeKonica Corporation
InventorHiroshi Yamashita
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Abstract
A color developer solution capable of inhibiting precipitation or tar-staining occurring in the processing tank or the roller rack, even when being processed rapidly or at low replenishing rate and a concentrated composition thereof is disclosed, comprising at least one selected from specified N-disubstituted hydroxylamine derivatives and at least one selected from specified N-monosubstituted hydroxylamine derivatives in a molar ratio falling within the range of 1000:1 to 1:1.
Claims13
A color developer solution comprising at least a first compound represented by the following formula (1) and at least a second compound represented by the following formula (2), the first compound is contained in an amount of 0.005 to 0.05 mol per liter of the color developer solution and a molar ratio of the first compound to the second compound is between 100:1 and 10:1,
- HO—N—(X—A)2 formula (1)
- wherein X is an alkylene group;
- A is a carboxyl group, a sulfo group, phosphono group, hydroxyl group, alkoxy group, amino group, ammonia group, sulfamoyl group, or alkylsulfonyl group;
- HO—NH—Y—B formula (2)
- wherein Y is an alkylene group;
- B is a carboxyl group, sulfo group, phosphono group, hydroxyl group, alkoxy group, amino group, ammonio group, sulfamoyl group, or alkylsulfonyl group.
A concentrated color developer composition comprising a p-phenylene type color developing agent, wherein the composition comprises at least a first compound represented by the following formula (1) and at least a second compound represented by the following formula (2), the first compound is contained in an amount of 0.01 to 0.5 mol per liter of the color developer composition and a molar ratio of the first compound to the second compound is between 100:1 and 10:1,
- HO—N—(X—A)2 formula (1)
- wherein X is an alkylene group;
- A is a carboxyl group, a sulfo group, phosphono group, hydroxyl group, alkoxy group, amino group, ammonio group, sulfamoyl group, or alkylsulfonyl group;
- HO—NH—Y—B formula (2)
- wherein Y is an alkylene group;
- B is a carboxyl group, sulfo group, phosphono group, hydroxyl group, alkoxy group, amino group, ammonio group, sulfamoyl group, or alkylsulfonyl group.
Dependencies are inferred from the claim text.