| 摘要 |
PURPOSE:To improve the coloring property and the image preservation of the titled material by incorporating specified cyan, magenta and yellow couplers in the red, green and blue photosensitive emulsion layers of the titled material, respectively. CONSTITUTION:The cyan coupler shown by formula I and the fine particle dispersion of a polymer (polymethyl methacrylate, etc.) are incorporated in the red photosensitive emulsion layer, and the magenta coupler shown by formula II and III is incorporated in the green photosensitive emulsion layer, and the yellow coupler is incorporated in the blue photosensitive emulsion layer. And, the compd. shown by formula V is incorporated in an emulsion layer. In the formula, R1 is hydrogen or halogen atom., R2 is alkyl group, R3 is a ballast residual group, Y1-Y4 are each hydrogen atom. or a releasing group, R4 and R6 are each aryl group, R5 is hydrogen atom. or acyl group, R7 is hydrogen atom. or a substituent group, Za-Zc are each methine group, R8 and R9 are each hydrogen or halogen atom., A is -NHCOR group, D is an aromatic group, R12-R15 are each hydrogen atom. or hydroxyl group, Q<1> and Q<2> are each -N= or -CH= group. Accordingly, as the specified coupler is incorporated in the emulsion layer, the high sensitivity of the titled material is obtd., and the change of the sensitivity is reduced. |
