发明名称 Color photographic recording material containing a non-diffusing, 2-equivalent coupler which, on coupling, forms a dye removable by rinsing
摘要 A multi-layer color photographic recording material having at least one photosensitive silver halide emulsion layer containing a color coupler contains in at least one photosensitive silver halide emulsion layer a non-diffusing, 2-equivalent color coupler which, under chromogenic development conditions, by coupling with a color developer oxidation product, releases a photographically inert ballast group from the coupling site and so forms a dye removable by rinsing which makes no contribution to color density. In a preferred embodiment of the invention, the non-diffusing, 2-equivalent color coupler which, under chromogenic development conditions, by coupling with a color developer oxidation product, releases a photographically inert ballast group from the coupling site and so forms a dye removable by rinsing which makes no contribution to color density, is a cyan coupler, for example a naphtholic or phenolic coupler, which is preferably located in the most highly sensitive sub-layer of a green-sensitive silver halide emulsion layer unit consisting of two or more sub-layers. The material exhibits an improved sensitivity/grain or gradation/grain relationship.
申请公布号 US6083675(A) 申请公布日期 2000.07.04
申请号 US19980044782 申请日期 1998.03.19
申请人 AGFA GEVAERT N.V. 发明人 BELL, PETER;BORST, HANS-ULRICH;BUESCHER, RALF;SIEGEL, JOERG
分类号 G03C7/30;G03C7/305;G03C7/34;(IPC1-7):G03C1/46 主分类号 G03C7/30
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