Patent ID: 6783924
Filing Date: 2004-08-31
Classification: G03C

Abstract:
Colour photographic silver halide material comprising a substrate, at least one red-sensitive silver halide emulsion layer containing at least one cyan coupler, at least one green-sensitive silver halide emulsion layer containing at least one magenta coupler and at least one blue-sensitive silver halide emulsion layer containing at least one yellow coupler, characterised in that the silver halide crystals of the red-sensitive layer have a chloride content of at least 95 mol %, the cyan coupler corresponding to formula whereinR1 represents a hydrogen atom or an alkyl group, R2 represents an alkyl, aryl or hetaryl group R3 represents an alkyl or aryl group, R4 represents an alkyl, alkenyl, alkoxy, aryloxy, acyloxy, acylamino, sulphonyloxy, sulphamoylamino, sulphonamido, ureido, hydroxycarbonyl, hydroxycarbonylamino, carbamoyl, alkylthio, arylthio, alkylamino or arylamino group or a hydrogen atom and Z represents a hydrogen atom or a group which may be split off under the conditions of chromogenic development and the red-sensitive layer contains at least one compound of formula whereinR5 represents H, CH3 or OCH3, R6 represents H, OH, CH3, OCH3, NHCOâ€”R7, COOR7, SO2NH2, NHCONH2 or NHCONHâ€”CH3 and R7 represents C1 to C4 alkyl.