Patent ID: 6338941
Filing Date: 2002-01-15
Classification: C09B,G03C

Abstract:
A silver halide light-sensitive black-and-white photographic material comprising a support and at least one hydrophilic colloid layer including a silver halide emulsion layer, wherein the hydrophilic colloid layer comprises a compound represented by the following formula (D): wherein Y1 represents â€”N(R)â€”, an oxygen atom, a sulfur atom or a selenium atom, in which R represents an aliphatic group having not more than 10 carbon atoms; R1 represents an aliphatic group, an aryl group or a heterocyclic group, each of which contains a water-solubilizing group; V1 and V2 each represent a hydrogen atom, an alkyl group, an alkoxy group or an aryl group, or V1 and V2 combine with each other to form a ring condensed with an azole ring; n is 1 or 2; m is 0 or 1; L1, L2, L3 and L4 each represent a methine group, provided that at least one of L1 and L2 when n is 1 or 2 and m is 0, or at least one of L1, L2, L3 and L4 when n is 1 or 2 and m is 1 contains a substituent group having 3 or more carbon atoms and meeting the following requirement:SP<539 which SP is a value represented by the following equation:SP=3.536 Lâˆ’2.661 B+535.4 where L represents a STERIMOL parameter (Ã¥) and B represents a smaller value (Ã¥) of the sum of STERIMOL parameters, B1+B4 and B2+B3; Q1 and Q2 each represent a non-metallic atom group necessary to form an acidic cycle; and at least 3 water-solubilizing groups are contained in R1 and acidic cycles formed by Q1 and Q2.