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    • 5. 发明授权
    • Photographic elements containing blend of cyan dye-forming couplers
    • 含有青色染料成色剂的混合物的照相元件
    • US06261755B1
    • 2001-07-17
    • US09514632
    • 2000-02-28
    • Danuta GibsonJames S. HonanThomas A. Rosiek
    • Danuta GibsonJames S. HonanThomas A. Rosiek
    • G03C108
    • G03C7/342G03C1/34G03C1/815G03C7/3006G03C7/3212G03C7/34G03C7/3885G03C7/39216G03C7/39256
    • The invention provides a photographic element comprising at least one light-sensitive silver halide emulsion layer having associated therewith: (A) a phenolic cyan dye-forming narrow bandwidth “NB coupler”; (B) a phenolic cyan dye-forming coupler of formula (II): wherein: R3 is an unsubstituted or substituted alkyl or aryl group or a 5-10 membered heterocyclic ring which contains one or more heteroatoms selected from nitrogen, oxygen and sulfur, which ring is unsubstituted or substituted; R4 is an unsubstituted or substituted alkyl group; R5 is hydrogen, halogen or an unsubstituted or substituted alkyl or aryl group or a 5-10 membered heterocyclic ring which contains one or more heteroatoms selected from nitrogen, oxygen and sulfur, which ring is unsubstituted or substituted; and Z is a hydrogen atom or a group which can be split off by the reaction of the coupler with an oxidized color-developing agent; and (C) a stabilizer of formula (III) wherein: each Y is an independently selected substituent and m is 0 to 4; and each T is an independently selected substituent and p is 0 to 4. Preferably the element has associated therewith one or more high-boiling solvents of formula (IV) wherein: R1 is an unsubstituted or substituted alkyl or aryl group; and G is an unsubstituted or substituted alkyl group.
    • 本发明提供了一种照相元件,其包含至少一种与之相关的感光卤化银乳剂层:(A)形成苯酚青色染料的窄带宽“NB成色剂”;(B)式(B)的酚青色染料成色剂 II):其中:R3是未取代或取代的烷基或芳基或含有一个或多个选自氮,氧和硫的杂原子的5-10元杂环,该环是未取代或取代的; R4是未取代或取代的 烷基; R5是氢,卤素或未取代或取代的烷基或芳基或含有一个或多个选自氮,氧和硫的杂原子的5-10元杂环,该环是未取代的或被取代的; Z为氢原子或可通过偶合剂与氧化显色剂的反应而分离的基团; 和(C)式(III)的稳定剂,其中:每个Y是独立选择的取代基,m是0-4; 所述T是独立选择的取代基,p是0至4.优选所述元素与一种或多种式(Ⅳ)的高沸点溶剂缔合,其中:R 1为未取代或取代的烷基或芳基; G是未取代或取代的烷基。