| 摘要 |
PROBLEM TO BE SOLVED: To enable extremely rapid processing with an activator solution containing substantially no developing agent by forming a first layer and a second layer and a third layer by coating and interposing a second layer between the first layer and a third layer and incorporating a specified color developing reducing agent in a layer containing a dye forming coupler. SOLUTION: The dye forming coupler is the one for producing a diffusive dye, and the first layer contains an auxiliary developing agent or its precursor, the second layer contains a polymer having anionic groups, and the third layer contains a mordant for immobilizing the diffusive dye, and the first layer is located on the side of the second layer reverse to the third layer, and the layer containing the dye forming coupler contains at least one kind of color developing reducing agent represented by the formula 10 which Ca is a carbon atom; Z is a carbamoyl, acyl, alkoxycarbonyl, or aryloxycarbonyl group; and Q is an atomic group necessary to form an unsaturated ring together with the Cαgroup.
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