| 摘要 |
PURPOSE:To give the high sensitivity and the high contrast photographic characteristic to the title material, and to improve the pressure sensitization of the material by incorporating specified hydrazine compd. and compd. in a surface latent image type silver halide emulsion layer and/or an another constituting layer mounted on a supporting body, respectively. CONSTITUTION:The surface latent image type silver halide emulsion layer is mounted on the supporting body, and the hydrazine compd. shown by formula I and the compd. shown by formula II are incorporated in the emulsion layer and/or the another constituting layer contd. in the sensitive material, respectively. In formula I, R1 is an aliphatic or an aromatic group, R2 is hydrogen atom or alkyl group, etc., G1 is carbonyl or sulfonyl group, etc., A1 and A2 are both hydrogen atoms or one of the groups is hydrogen atom, while another of the groups is alkyl sulfonyl group etc. which may be substituted. In formula II, X is hydroxy group, etc., R<3> and R<4> are each hydrogen atom or alkyl group, etc., R<8> is hydrogen atom or a group capable of substituting. Thus, the sensitive material having the high sensitivity and the super high contrast photographic characteristic and the improved pressure sensitization is obtd. |
