| 摘要 |
PURPOSE:To obtain the titled material having a high sensitivity by forming a photosensitive material contg. a photosensitive silver halide, a polymerizable compd., a color image forming substance and a specific hydrazine derivative shown by formula I on a substrate, and by imagewise-exposing followed by heating it to effect a development, thereby making the color image forming substrate to a passive state. CONSTITUTION:The titled material is prepared by forming the photosensitive material contg. the photosensitive silver halide, the polymerizable compd., the color image forming substance and the hydrazine derivative shown by formula I on the substrate, and by imagewise-exposing followed by heating it to effect the development to make the color image forming substance to the passive state. In formula I, R1 is a monovalent group derived from a substd. or an unsubstd. aromatic ring, R2 and R3 are each a substd. or an unsubstd. aryl group, R4 is a hydrogen atom or a substd. or an unsubstd. alkyl or a carbomoyl group. The concrete example of the used hydrazine derivative is shown by formula I-1. The compounding amount of the hydrazine derivative is preferably 10-300% per 1mol a silver and 0.1-20mol% per 1mol the polymer compd.
|
