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    • 7. 发明授权
    • Silver halide color photographic light-sensitive material
    • 卤化银彩色摄影感光材料
    • US4567135A
    • 1986-01-28
    • US572048
    • 1984-01-19
    • Jun ArakawaToshiyuki Watanabe
    • Jun ArakawaToshiyuki Watanabe
    • G03C7/32G03C1/46
    • G03C7/3225G03C7/32
    • A silver halide color photographic light-sensitive material is disclosed. The material is comprised of a support base having thereon a silver halide emulsion layer and two distinct types of couplers. One coupler is a diffusing dye-forming coupler which can form a dye capable of having moderate diffusibility in an emulsion layer through coupling with an oxidation product of a color developing agent. The other coupler is a high reaction rate coupler which can form a dye of the same color as that of the diffusing dye-forming coupler and that, has a coupling speed higher than that of the diffusing dye-forming coupler by a factor of 1.3 to 15. By utilizing the two types of couplers in combination with each other the resulting material can provide images with improved graininess over the entire density region of the dye image.
    • 公开了一种卤化银彩色照相感光材料。 该材料由其上具有卤化银乳剂层和两种不同类型的成色剂的支撑基底组成。 一种成色剂是一种扩散染料形成成色剂,可以通过与彩色显影剂的氧化产物偶联,形成能够在乳剂层中具有适度扩散性的染料。 另一种成色剂是一种高反应速率的成色剂,可以形成与漫射染料形成成色剂相同颜色的染料,并且其耦合速度高于扩散染料形成成色剂的耦合速度为1.3至 通过使用两种类型的耦合器彼此组合,所得到的材料可以在染料图像的整个密度区域上提供具有改善的颗粒度的图像。