| 摘要 |
PURPOSE:To improve the coloring property of the titled material and the light stability of a yellow image by incorporating a specified yellow color matter forming coupler, an organosilane compd. and a high b.p. org. solvent in at least one layer of an emulsion layer, respectively. CONSTITUTION:The yellow color matter forming coupler shown by formula I, the organosilane compd. and the high b.p. org. solvent having <=6.0 dielectric constant are incorporated in at least one layer of the emulsion layer. In formula I, R1 is alkyl group, R2 is aryl group, Z1 is a group capable of releasing a coupler bound with carbon atom by nitrogen atom. And, the organosilane compd. comprises 1-2 aryloxy groups or heterocyclic oxy group or cycloalkylene group or a group contg. said group, arylene alkyl group or a group contg. said group or alkylene arylene group or a group contg. said group, etc. Thus, the coloring property of the titled material and the light stability of the yellow image are improved. |
