| 摘要 |
PURPOSE:To form a color image simply and rapidly with a short exposing period by forming the photosensitive material contg. a specific hydrazine compd. on a substrate and imagewise-exposing followed by heating it to effect a develop ment and to make a color image forming substance to a passive state. CONSTITUTION:The photosensitive material contg. a photosensitive silver halide, a polymerizable compd., the color image forming substance, a heat solvent and the hydrazine derivative shown by formula I or II is formed on the sub strate, and is imagewise-exposed and then heated it to >=80 deg.C a temp., thereby developing it as well as making the color image forming substance to the pas sive state to obtain the image. In the formula, R1 is a substd. or an unsubstd. alkyl group or a cycloalkyl group, etc., R2 is a hydrogen atom or a substd. or an unsubstd. alkyl etc. R3 is a monovalent group derived from a substd. or an unsubstd. aromatic ring or a aromatic heterocyclic ring. The preferable example of the usable hydrazine derivative is that shown by formula I-1 or II-1. |
