| 摘要 |
PURPOSE:To improve color reproducibility and to improve the fastness to light of a magenta dye image by incorporating a pyrazolo-[1,5-a]-benzimidazole type magenta dye forming coupler and specific compd. into a titled material. CONSTITUTION:At least one kind of the pyrazolo-[1,5-a]-benzimidazole type magenta color image forming coupler and at least one kind of the compd. expressed by the formula are incorporated into the above-mentioned material. (In the formula, R<1> denotes an aliphat. group, cycloalkyl group or aryl group and Y denotes a non-metallic atom group necessary for forming the heterocycle of a 5--7-membered ring together with a nitrogen atom. However, at least two heteroatoms of the non-metallic atoms including the nitrogen atom forming said heterocycle are heteroatoms which are adjacent to each other.) The fastness of the magenta dye image which has heretofore the low fastness particularly to light, heat and moisture is improved according to the above-mentioned photographic material. More specifically, the color fading to light and the generation of the Y-stain in the uncolored part as against light, heat and moisture are satisfactorily prevented. |
