| 摘要 |
PROBLEM TO BE SOLVED: To obtain good color developing property even in a short developing time and to obtain a stable transfer color image against light, heat, humidity or the like by using a specified color developing agent and a phenolic coupler. SOLUTION: A hydrophilic colloidal layer formed on a supporting body contains a color developing agent expressed by formula I and a coupler expressed by formula II. In formula I, X is an alkyl group or aryl group, Z is a carbamoyl group, acyl group, alkoxycarbonyl group or the like, and Z is preferably a carbamoyl group having one or more hydrogen atoms coupled to the nitrogen atom in the carbamoyl group. In formula II, R is a substituent and m is an integer 0 to 4, and when m is >=2, a plurality of R may be same or different from one another, or may be coupled to form a five to seven- member ring, Y is an aryl group, unsatd. heterocyclic group or acyl group, and these groups have alkyl groups with >=6 total carbon atoms.
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