| 摘要 |
PURPOSE:To prevent reduction of cyan coloring density, even in case of processing the titled material with a bleaching or a bleach-fixing solution which is exhausted or is weakened oxidizing force, by incorporating a specific naphthol type cyan coupler and carboxylic acids having a non-coloring and an anti- diffusion properties in the same layer of the titled material. CONSTITUTION:The titled material contains the naphthol type cyan coupler shown by formula I and the carboxylic acids having the non-coloring and anti- diffusion properties in the same layer of the titled material. In formula I, R1 is -CONR4R5, etc., R2 is a group capable of substituting in a naphthalene ring, (l) is an integer of 0-3, R3 is a monovalent org. group, X is hydrogen atom, etc., R4 and R5 are each hydrogen atom etc. The concrete example of the compd. shown by formula I is preferably the compd. shown by formula I-1. Thus, the color developing property of the cyan coupler is improved, and the titled material having the high sensitivity is obtd. |
