| 摘要 |
PURPOSE:To provide excellent eluting and decoloring properties in treatment, and to obtain a titled material whose color does not recolor in long-term preservation and whose sensitivity is not decreased by providing at least one photograph constituting layer contg. a specified compd. CONSTITUTION:At least one photograph constituting layer contg. a compd. shown by the formula I is provided (X and Y express respectively an alkyl group having 1-5 carbon atom and at least one between said X and Y shows an alkyl group having a substituent group having -4.7 total of hydrophilic substituent group constant pi (SIGMApi value), G is a hydrogen atom, G expresses a hydrogen atom, a halogen atom, a methyl group, or an alkoxy group, R1 shows an alkyl group having 5-10C atom, R2 expresses a hydrogen atom, an alkyl group, an alkoxy group, or a halogen atom, M shows a hydrogen atom or a cation, L expresses a methene group, and (m) and (n) express respectively 1 or 2 integer). Cyanoalkyl, hydroxyalkyl, alkoxyalkyl, halogenoalkyl, alkylthioalkyl, etc. can be exemplified as the alkyl group having a substituent group. |
