| 摘要 |
PURPOSE:To obtain the titled material having improved coloring property, color reproducibility and the light fastness of magenta coloring matter image by incorporating one kind of specific pyrazolobenzimidazole type magenta couplers and one kind of specific compds. to the titled material. CONSTITUTION:The titled material contains at least one kind of the pyrazole[1,5-a]benzimidazole type magenta coupler and at least one kind of the compd. shown by formula II. In formulas I and II R1 is alkyl, alkenyl or cycloalkyl group, etc., (n) is an integer of 0-4, X is hydrogen atom or a group capable of releasing by reacting with the oxidant of a color developing agent. And, R3 and R5 are each hydrogen atom, halogen atom, alkyl group, and. R4 together with R5 may form a 5 or 6 membered hydrocarbon ring by a ring closure, Y is an atom group necessary to forming an indan ring. Thus, the titled material having the excellent color reproducibility and less tendency for generating Y-stain in an uncoloring part against a light and a wet-heat and having the improved light fastness of the magenta coloring matter image and capable of preventing discoloring against a light is obtd. |
