| 摘要 |
PURPOSE:To suppress the reduction fading of a cyan dye and to improve the photostability of a yellow color image by using specific coupler dispersion additives. CONSTITUTION:>=1 kinds of the coupler dispersion additive expressed by the formula I are mixed with a dye forming coupler and are incorporated into a titled photosensitive material. In the formula, R1-R4 denote H, halogen, etc., (l) denotes 1-3; (m) denotes 1-5. The compds. expressed by the formula II are usable as the additive expressed by the formula. The compds. expressed by the formula III, etc., are usable for the yellow coupler and the naphthol or phenolic couplers of an oil protection type (e.g.: the compds. expressed by the formula IV) are usable for the cyan coupler. In the formula III, X denotes H, coupling elimination group; R21 denotes a diffusion resistant group of 8-32C; R22 denotes H, halogen, etc., R23 denotes H, substituent. |
