Photographic silver halide elements containing solid particle dispersions of dyes

Claim 1

A photographic element comprising a support having thereon a radiation-sensitive silver halide emulsion layer and a layer, which is the same as or different from the silver halide layer, comprising a hydrophilic binder, and an amount effective as a photographic filter dye of a dispersion of solid particles, said dispersion consisting essentially of a compound having the formula: ##STR5## wherein R 1 and R 2 are each independently substituted or unsubstituted alkyl or aryl, or together represent the atoms necessary to complete a substituted or unsubstituted 5- or 6-membered ring, R 3 and R 4 each independently represents H, substituted or unsubstituted alkyl, substituted or unsubstituted aryl, CO 2 H, or NHSO 2 R 6 , R 5 is H, substituted or unsubstituted alkyl, substituted or unsubstituted aryl, substituted or unsubstituted carboxylate, or substituted or unsubstituted acyl, R 6 and R 7 are each independently substituted or unsubstituted alkyl or substituted or unsubstituted aryl, R 8 is substituted or unsubstituted alkyl, or is part of a double bond between the ring carbon atoms to which R 1 and R 2 are attached, and n is 1 or 2, with the proviso that at least one of the aryl rings of the dye molecule has at least one substituent that is CO 2 H or NHSO 2 R 6 , the particles of said dispersion having a mean diameter of about 0.01 to 10 μm.