Process for forming contrasty image

摘要

A process for forming a very contrasty negative photographic image which comprises developing a photographic light-sensitive material comprising a support having thereon at least one layer of a negative image monodispersed silver halide photographic emulsion comprising substantially surface latent image type silver halide grains, wherein the average grain size of the silver halide grains is 0.7 micron or less, with the silver halide photographic emulsion containing a binder in an amount of 250 g or less per mol of silver halide, and at least one hydrographic colloid layer containing a compound represented by the following general formula (I): R1NHNHCOR2 (I) wherein R1 represents an aryl group and R2 represents a hydrogen atom, a phenyl group or an alkyl group having 1 to 3 carbon atoms, in the presence of a compound represented by the following general formula (II) or (III): (II) (III) wherein Z1 and Z2, which may be the same or different, each represents an atomic group necessary to complete a thiazole ring or a selenazole ring; R3 and R5 which may be the same or different, each represents an alkyl group which may be substituted or an alkenyl group which may be substituted; R4 represents a hydrogen atom or an alkyl group which may be substituted; and R3 and R4 may combine to form a ring; L represents a sulfur atom or a divalent hydrocarbon group; X- represents an acid anion; m represents 0 or 1; n represents 0, 1 or 2 and when an inner salt or inner salts are formed m represents 0 or n represents 0 or 1.