| 摘要 |
PURPOSE:To improve the stability of the organic coloring material against light by incorporating at least one kind of the org. coloring material together with at least one kind of a specific compd. in a photosensitive material. CONSTITUTION:At least one kind of the org. coloring material together with at least one kind of the compd. shown by formula I are incorporated in the photosensitive material. In formula I, R1 is hydrogen atom., alkyl, alkenyl, alkinyl, cycloalkyl, cycloalkenyl, aryl, a heterocyclic ring, acyl, sulfonyl, phosphonyl, carbamoyl, sulfamoyl or oxycarbonyl group, R2 and R3 are each a substituent group, (m) is an integer of 0-3, (n) is an integer of 0-4, X is an atomic group necessary for forming an isochromane ring or an isocoumarane ring. Thus, the discoloring and decoloring of the org. coloring material, especially, the coloring matter and the dye, etc., used for the color photographic sensitive material due to light is remarkably reduced. |
