| 摘要 |
PURPOSE:To obtain a photosensitive material contg. 2 equiv. cyan forming couplers and having excellent color developing property and dispersibility by incorporating the colorless cyan forming couplers having the specific eliminating group in the position where said couplers couple with the oxidant of a developing agent consisting of an arom. primary amine. CONSTITUTION:The colorless cyan color forming couplers for photography which has the group eliminated when a dye is formed by the coupling reaction expressed by formula I [R1, R2 are straight chain or branched unsubstd. alkylene, R3 is (substd.) alkyl, cycloalkyl, aryl or heterocycle, x is positive integer, y is 0 or positive integer] and is expressed by formula II (R5 is H, aliphat. or carbamoyl of <=C, R6, R7, R8, R9 and R10 are respectively H, halogen, alkyl, hetero ring, amino, sulfone amide, etc. or any among R5-R10 may combine with the side chain part of an ethylenic addition polymer, W is the non-metallic atomic group necessary for forming a 5-6-membered ring) are incorporated into the photosensitive material. The photosensitive material which provides the excellent cyan image is thus obtd. |
