Patent ID: 7887998
Filing Date: 2011-02-15
Classification: G03C

Abstract:
1. A method for producing a black and white silver halide photographic light-sensitive material utilizing a silver image, which comprises, forming at least one silver halide emulsion layer and at least one hydrophilic colloid layer on a support, wherein the silver halide in the silver halide emulsion layer has a silver bromide content of 40 to 90 mol %, the silver halide is in the form of cubic grain, and the silver halide emulsion layer is spectrally sensitized with at least one dye selected from dyes represented by one of the following formulas (I) to (IV) below, and heating the layers-formed support at a temperature of 30 to 60° C.: wherein in formula (I), Y R R X n m wherein in formula (II), Z Z R R wherein at least one of R L m and n each independently represents 0, 1 or 2, l and p each independently represents 0 or 1, and X represents a counter ion; wherein in formula (III), Y R R V L M n wherein in formula (IV), Y1, Y Z R R W represents an oxygen atom, sulfur atom or ═C(E L l represents 0 or 1, M n