申请人:Fuji Photo Film Co., Ltd.
公开号:US04199361A1
公开(公告)日:1980-04-22
A color photographic light-sensitive element comprising a support having thereon a silver halide emulsion layer containing therein a 3-anilino-5-pyrazolone magenta color-forming coupler represented by the following general formula (I): ##STR1## wherein R represents an aliphatic hydrocarbon group having up to about 35 carbon atoms, a heterocyclic group having up to about 22 carbon atoms or an aromatic group having up to about 22 carbon atoms; X represents a halogen atom or an alkoxy group having up to about 22 carbon atoms; Z represents a hydrogen atom or a coupling off group; and Y.sub.1, Y.sub.2, Y.sub.3, Y.sub.4 and Y.sub.5, which may be the same or different, each represents a hydrogen atom, a halogen atom, a cyano group, an alkyl group having 1 to 5 carbon atoms, a trifluoromethyl group, an alkoxy group having 1 to 5 carbon atoms, an acylamino group having 1 to 30 carbon atoms, an alkylsulfonyl group having 2 to 30 carbon atoms or a sulfonamido group having 1 to 30 carbon atoms and the RS group is present at the 4- or 5-position of the anilino group. The magenta color-forming coupler prevents yellow staining at the unexposed area after color development processing particularly arising due to irradiation of light.
一种彩色摄影感光元件,包括具有银卤素乳剂层的支撑体,所述银卤素乳剂层中含有下式(I)所表示的3-苯胺基-5-吡唑酮品红色成色偶合剂:
其中,R代表具有最多约35个碳原子的脂肪烃基,最多约22个碳原子的杂环基或最多约22个碳原子的芳香基;X代表一个卤素原子或最多约22个碳原子的烷氧基;Z代表氢原子或偶合离子基;Y1、Y2、Y3、Y4和Y5,它们可以相同也可以不同,每个代表氢原子、卤素原子、氰基、具有1至5个碳原子的烷基、三氟甲基、具有1至5个碳原子的烷氧基、具有1至30个碳原子的酰胺基、具有2至30个碳原子的烷基磺酰基或具有1至30个碳原子的磺酰胺基,且RS基位于苯胺基的4-或5-位。该品红色成色偶合剂可防止因光照引起的彩色显影处理后未曝光区域出现黄色污染。