申请人:FUJI PHOTO FILM CO., LTD.
公开号:EP0545300A1
公开(公告)日:1993-06-09
Disclosed is a silver halide color photographic material comprising a support having thereon at least one layer containing one or more cyan couplers of formula (I):
wherein R₁₁ represents a branched or cyclic alkyl group, a branched or cyclic alkoxy group, a substituted aryl group, or a substituted aryloxy group; R₂₁ represents a substituent which may optionally be substituted. R₁₂ represents an aliphatic group, an aryl group, a heterocyclic group, an alkoxy group, an aryloxy group, an alkylamino group, an anilino group, a heterocyclic-oxy group, or a heterocyclicamino group; R₂₂ and R₃₂ each represents a substituent; r₂ represents an integer of from 0 to 4; provided that when r₂ is a plural number, the plurality of R₃₂ groups may be the same or different; R₁₃, R₂₃ and R₃₃ each represent a hydrogen atom or a substituent; provided that the total of Taft's substituent constant σ* values of R₁₃, R₂₃ and R₃₃ is 1.5 or more; R₄₃ represents a substituent. In formulae (I), (II) and (III), X₁, X₂ and X₃ each represents a hydrogen atom, or a group which is capable of splitting off from the formula by a coupling reaction with an oxidation product of an aromatic primary amine color developing agent; and the group of R₁₁, R₂₁ or X₁, the group of R₁₂, R₂₂, R₃₂ or X₂, or the group of R₁₃, R₂₃, R₃₃, R₄₃ or X₃ may be a divalent group to form a dimer or a higher polymer or to bond to a polymer chain to form a homopolymer or a copolymer. The material forms a color image with good color hue and color fastness. It is hardly fogged, and the dyes formed from the couplers hardly associate with each other in the material.
本发明公开了一种卤化银彩色感光材料,它包括一个支撑体,支撑体上至少有一层含有一种或多种式(I)的青色耦合剂:
其中 R₁₁ 代表支链或环状烷基、支链或环状烷氧基、取代的芳基或取代的芳氧基; R₂₁ 代表可任选被取代的取代基。R₁₂ 代表脂肪族基团、芳基、杂环基团、烷氧基、芳氧基、烷基氨基、苯胺基、杂环氧基或杂环氨基;R₂₂ 和 R₃₂ 各代表一个取代基;r₂ 代表 0 至 4 的整数;当 r₂ 为复数时,多个 R₃₂ 基团可以相同或不同;R₁₃、R₂₃ 和 R₃₃ 各代表一个氢原子或一个取代基;条件是 R₁₃、R₂₃ 和 R₃₃ 的塔夫脱取代常数 σ* 值的总和为 1.5或更多;R₄₃代表取代基。在式(I)、(II)和(III)中,X₁、X₂ 和 X₃ 各代表一个氢原子,或一个能与芳香族伯胺显色剂的氧化产物发生偶联反应而从式中分离的基团;和 R₁₁、R₂₁ 或 X₁ 的基团,R₁₂、R₂₂、R₃₂ 或 X₂ 的基团,或 R₁₃、R₂₃、R₃₃、R₄₃ 或 X₃ 可以是二价基团,以形成二聚体或高聚物,或与聚合物链键合形成均聚物或共聚物。该材料可形成色相和色牢度良好的彩色图像。它几乎不会起雾,由耦合剂形成的染料在材料中几乎不会相互结合。