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    • 16. 发明申请
    • COLOR PHOTOGRAPHIC ELEMENT
    • 彩色摄影元素
    • WO1992011573A1
    • 1992-07-09
    • PCT/US1991009490
    • 1991-12-17
    • EASTMAN KODAK COMPANY
    • EASTMAN KODAK COMPANYKRISHMAN, ChariKEECH, JohnSAWYER, JohnSCHMOEGER, Jeffrey, WalterZENGERLE, Paul
    • G03C07/30
    • G03C7/3029
    • A color photographic silver halide negative working duplicating element comprising a support having thereon at least one red-sensitive photographic silver halide emulsion layer comprising at least one cyan image-dye forming coupler; at least one green-sensitive photographic silver halide emulsion layer comprising at least one magenta image-dye forming coupler; and, at least one blue-sensitive photographic silver halide emulsion layer comprising at least one yellow image-dye forming coupler, provides improved images when (a) at least one of the layers comprises a unit of at least two layers including a first layer and a second layer, the first layer having a higher photosensitivity than the second layers and being farther from the support than the second layers; (b) the firt layers contain an image-dye forming coupler in an amount insufficient to react with all the oxidized developer formed during development after maximum exposure; (c) the image-dye forming couplers of the first layers being in a dispersion having a mean particle size of less than 0.14 micron; and, (d) the silver halide grains of the first layers having a mean grain volume less than 0.015 cubic micron. Such a photographic element is especially useful in motion picture film duplication providing reduction in granularity of the image.