Process for stabilizing a color developing solution
AssigneeFuji Photo Film Co., Ltd.
InventorsJunkichi Ogawa, Tsumoru Ishii, Isao Shimamura
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Abstract
A process for stabilizing a color developing solution which comprises adding one or more hydroxamic acid compounds represented by the following formula to the color developing solution: ##STR1## wherein X represents a hydrogen atom, an alkyl group having 1 to 4 carbon atoms, an unsubstituted or substituted aryl group having 6 to 10 carbon atoms, an amino group, an alkylamino group having 1 to 4 carbon atoms or an arylamino group.
Claims18
A process for stabilizing a color developing solution containing one or more p-phenylenediamine derivatives which comprises adding one or more hydroxamic acid compounds represented by the following formula to the color developing solution:
- ##STR3## wherein X represents a hydrogen atom, an alkyl group having 1 to 4 carbon atoms, an unsubstituted or substituted aryl group having 6 to 10 carbon atoms, an amino group, an alkylamino group having 1 to 4 carbon atoms or an arylamino group.
In a process for developing an imagewise exposed color photographic material by bringing said material into contact with a color developing solution containing one or more p-phenylenediamine derivatives as a color developing agent, the improvement wherein said color developing solution comprises one or more hydroxamic acid compounds represented by the following formula:
- ##STR4## wherein X represents a hydrogen atom, an alkyl group having 1 to 4 carbon atoms, an unsubstituted or substitured aryl group having 6 to 10 carbon atoms, an amino group, an alkylamino group having 1 to 4 carbon atoms or an arylamino group.
Dependencies are inferred from the claim text.