Silver halide photographic material

Abstract

Disclosed is a silver halide photographic material containing at least one dye of formula (Ia), (Ib), (Ic), or (Id): ##STR1## wherein R.sup.1, R.sup.2, R.sup.9 and R.sup.10 may be the same or different and each represents an alkyl group; Z.sup.1, Z.sup.2, Z.sup.3 and Z.sup.4 each represents a non-metallic atomic group necessary for forming a nitrogen-containing hetero ring; R.sup.3, R.sup.4, R.sup.5, R.sup.6, R.sup.11, R.sup.12, R.sup.13 and R.sup.14 may be the same or different and each represents a hydrogen atom, an alkyl group, an aryl group or an aralkyl group; R.sup.7, R.sup.8, R.sup.15 and R.sup.16 may be the same or different and each represents a hydrogen atom, a halogen atom, an alkyl group, an alkoxy group, an amino group or a hydroxyl group; R.sup.3 and R.sup.4, R.sup.5 and R.sup.6, R.sup.11 and R.sup.12, R.sup.13 and R.sup.14, R.sup.3 and R.sup.7, R.sup.5 and R.sup.8, R.sup.11 and R.sup.15, or R.sup.13 and R.sup.16 may be bonded to each other to form a 5-membered or 6-membered ring; and m and n each represents an integer of from 1 to 4; provided that the dye molecule contains at least two acidic substituents.

Dependencies are inferred from the claim text.