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    • 3. 发明授权
    • Color photographic light-sensitive element
    • 彩色摄影感光元件
    • US4336325A
    • 1982-06-22
    • US199125
    • 1980-10-22
    • Kozo AokiSatoru SawadaNobuo Furutachi
    • Kozo AokiSatoru SawadaNobuo Furutachi
    • G03C7/38C07D231/52C09B26/02G03C7/384G03C1/40
    • G03C7/384C07D231/52
    • 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 ##STR2## (an N-substituted acylamino group) is present at the 4- or 5-position of the anilino group; R.sub.1 represents a substituted or unsubstituted alkyl group, an alkenyl group, a cycloalkyl group, a cycloalkyl, a cycloalkenyl group or an aralkyl group; R.sub.2 represents an aliphatic hydrocarbon group, a heterocyclic group or an aryl group; X represents a halogen atom or an alkoxy group; Z represents hydrogen or a coupling-off group; and Ar represents an aryl group.The 3-anilino-5-pyrazolone magenta-color-forming coupler is useful in preventing the formation of yellow stain due to light irradiation in unexposed areas of a color photographic light-sensitive element after color development processing.
    • 一种彩色摄影感光元件,包括其上具有卤化银乳剂层的载体,其中含有由以下通式(I)表示的3-苯胺基-5-吡唑啉酮品红色形成成色剂:其中 苯胺基的4-或5-位存在(N-取代的酰基氨基) R1表示取代或未取代的烷基,烯基,环烷基,环烷基,环烯基或芳烷基; R2表示脂族烃基,杂环基或芳基; X表示卤素原子或烷氧基; Z表示氢或偶联离去基团; Ar表示芳基。 3-苯胺基-5-吡唑啉酮品红色成色剂可用于防止由于在显色处理后的彩色照相感光元件的未曝光区域中的光照射而形成黄色斑点。
    • 4. 发明授权
    • Color photographic materials
    • 彩色摄影材料
    • US4279990A
    • 1981-07-21
    • US185848
    • 1980-09-10
    • Kozo AokiNobuo FurutachiSatoru Sawada
    • Kozo AokiNobuo FurutachiSatoru Sawada
    • G03C7/26C07F7/18G03C1/06G03C7/392G03C1/40
    • C07F7/1816G03C7/39288
    • Discoloring and fading of silver halide color photographic materials are effectively prevented by incorporating a compound of the formula (I) or (II) in a silver halide photographic layer thereof ##STR1## wherein A represents an aryl group; R.sub.1, R.sub.2 and R.sub.3 each represents hydrogen, a halogen atom, an alkyl group, or an aryl group, except that R.sub.1, R.sub.2 and R.sub.3 cannot all be hydrogen atoms; R.sub.4 and R.sub.5 each represents hydrogen, a halogen atom, an alkyl group, an aryl group, an alkoxy group, an alkylthio group, an acyl group, an aryloxy group, a carboxy group, a sulfo group or a hydroxy group; and R.sub.6 and R.sub.7 each represents hydrogen, a halogen atom, an alkyl group, an aryl group, an alkoxy group, an aryloxy group, an alkylthio group, an acyl group, or a hydroxy group; or R.sub.6 and R.sub.7 together form an ##STR2## group or a 5-membered or 6-membered carbocyclic or heterocyclic ring.
    • 通过将式(I)或(II)的化合物并入其卤化银照相层中,其中A表示芳基(I)表示的卤化银照相材料,可有效地防止卤化银彩色照相材料的变色和褪色 组; R1,R2和R3各自表示氢,卤素原子,烷基或芳基,不同之处在于R1,R2和R3不能全部为氢原子; R4和R5各自表示氢,卤素原子,烷基,芳基,烷氧基,烷硫基,酰基,芳氧基,羧基,磺基或羟基; R 6和R 7各自表示氢,卤素原子,烷基,芳基,烷氧基,芳氧基,烷硫基,酰基或羟基。 或R6和R7一起形成基团或5元或6元碳环或杂环。