申请人:CIBA-GEIGY AG
公开号:EP0069070A1
公开(公告)日:1983-01-05
Colour photographic silver halide material which contains in at least one coupler containing silver halide emulsion layer or in a layer adjacent thereto
(a) a hydroquinone of the formula
wherein p is 1 or 2 and q is o or 1, provided that p + q is 1 or 2, R is a radical of the formula
wherein q is selected from the residues
(1) -COZR4, wherein Z is O or NR5, and R4 is hydrogen, alkyl optionally interrupted by oxygen, cycloalkyl, alkenyl, aryl, aralkyl or a heterocyclic ring, and Rs is hydrogen or alkyl or together with R4 and the nitrogen atom to which they are bonded form a heterocyclic ring,
(2) -OX, wherein X is Rs or-COR7, wherein R7 is hydrogen, alkyl, cycloalkyl, alkenyl, aryl or aralkyl,
(3) -NR8R9, wherein R8 is hydrogen or alkyl, and R9 is hydrogen, alkyl or -COR7, or R8 and R9 together with the nitrogen atom to which they are bonded form a ring,
(4) -P(O)(OR'10[O]xR'11), wherein x is 0 or 1, and if x is 1, r',o and R'11 are hydrogen or alkyl orform together an alkylene chain, and if x is 0 R'10 is alkyl,
(5) -SO2NR5R6, wherein Rs and R6 are hydrogen or alkyl, or
(6) cyano,
n is 1 to 20, k is 1 or 2, R2 and R3 are alkyl and if Q is CO2R4, either R2 or R3 is optionally substituted by -CO2R4, or R2 and R3 form together an alkylene chain, and R1 is alkyl or a group of the formula
or
(b) a salt thereof, has an improved stability to light.
彩色卤化银感光材料,其中至少包含一层含有卤化银乳剂的耦合层或其邻近层
(a) 式中的对苯二酚
其中 p 是 1 或 2,q 是 o 或 1,条件是 p + q 是 1 或 2,R 是式中的基团
其中 q 选自以下残基
(1) -COZR4,其中 Z 是 O 或 NR5,R4 是氢、任选被氧打断的烷基、环烷基、烯基、芳基、芳烷基或杂环,Rs 是氢或烷基或与 R4 和它们所结合的氮原子一起形成杂环、
(2) -OX,其中 X 是 Rs 或-COR7,其中 R7 是氢、烷基、环烷基、烯基、芳基或芳烷基、
(3) -NR8R9,其中 R8 是氢或烷基,R9 是氢、烷基或-COR7,或 R8 和 R9 与它们键合的氮原子一起形成一个环、
(4) -P(O)(OR'10[O]xR'11),其中 x 为 0 或 1,如果 x 为 1,则 r'、o 和 R'11 为氢或烷基或共同形成亚烷基链,如果 x 为 0,则 R'10 为烷基、
(5) -SO2NR5R6,其中 Rs 和 R6 为氢或烷基,或
(6) 氰基、
n 为 1 至 20,k 为 1 或 2,R2 和 R3 为烷基,如果 Q 为 CO2R4,则 R2 或 R3 可选择被 -CO2R4 取代,或 R2 和 R3 共同形成亚烷基链,且 R1 为烷基或式中的基团
或
(b) 其盐,具有更好的光稳定性。