Patent ID: 6908730

Claim:
A silver halide photographic material comprising at least one silver halide emulsion comprising silver halide grains having associated therewith: (a) a first dye (Dye 1) that is a cyanine dye capable of spectrally sensitizing a silver halide emulsion and that has at least one anionic substituent; and (b) a second dye (Dye 2) that has at least one cationic substituent and is represented by formula II wherein: R 1 is a substituted alkyl group that comprises at least one tetraalkylammonium group and at least one additional heteroatom; E 3 represents the atoms necessary to complete a substituted or unsubstituted 5- or 6-membered heterocyclic nucleus; Ar 1 is a substituted or unsubstituted aryl group or a substituted or unsubstituted alkyl group; L 11 through L14 are substituted or unsubstituted methine groups; s is 0 or 1; G 11 is an electron-withdrawing group; G 2 is O or dicyanovinyl (C(CN) 2 ); and W 1 is a counterion if necessary; and wherein the log P of Dye 2, excluding any counterion, is less than 4.00 and greater than 1.00.