Patent ID: 6329133
Filing Date: 2001-12-11
Classification: G03C

Abstract:
A silver halide photographic material comprising at least one silver halide emulsion comprising silver halide grains having associated therewith a combination of two or more light absorption-increasing dyes wherein:(a) a light absorption-increasing dye having at least one substituent that has a negative charge is present, and(b) a light absorption-increasing dye having at least one substituent that has a positive charge and which is a cyanine dye, a merocyanine dye, an arylidene dye, a complex cyanine dye, a complex merocyanine dye, a homopolar cyanine dye, a styryl dye, a hemioxonol dye, an oxonol dye, an anthraquinone dye, a triphenylmethane dye, an azo dye type, an azomethine dye, or a coumarin dye is present,wherein at least one of the light absorption-increasing dyes is further substituted with at least one hydrogen bonding donor substituent.