Patent ID: 6465166
Filing Date: 2002-10-15
Classification: G03C

Abstract:
A silver halide photographic material comprising at least one compound represented by formula (I): wherein Q1 represents a methine or polymethine group necessary for completing said compound as a methine dye; Z1 represents atoms necessary to complete a 5- or 6-membered nitrogen-containing heterocyclic ring, provided that Z1 may be condensed with a ring; L1 and L2 each represents a methine group; p1 represents 0 or 1; L represents a divalent linking group and Ar represents an aromatic group, provided that L or Ar contains at least one proton dissociative group selected from the group consisting of a sulfonylcarbamoyl group, a sulfonylsulfamoyl group, a carbonylcarbamoyl group, a carbonylsulfamoyl group and a phenolic hydroxyl group as a substituent group or a part of the linking group or the aromatic group and the proton dissociative group has a pKa value of from 3 to 12; M1 represents a counter ion for charge balance; and m1 represents a number of counter ions required for neutralizing charges on the molecule, and ranges from 0 to 10.