Direct positive photographic lightsensitive material.

摘要

A direct positive photographic light-sensitive material comprising: (1) a support, (2) at least one photographic emulsion layer containing internal latent image type silver halide grains not having been previously fogged, wherein the internal latent image type silver halide grains are silver bromide, silver chloride, silver iodobromide, silver chlorobromide or silver chloroiodobromide grains in which at least one metal selected from manganese, copper, zinc, cadmium, lead, bismuth, indium, thallium, zirconium, lanthanum, chromium, rhenium, and metals of group VIII of the Periodic Table is incorporated, and (3) at least one compound represented by the following formula (N-1): <CHEM> wherein Z<1> represents a nonmetallic atomic group necessary to form a 5-membered or 6-membered heterocyclic ring to which an aromatic ring or a heterocyclic ring may further be condensed; R<1> represents an aliphatic group; X represents =C- or -N-; Q represents a nonmetallic atomic group necessary to form a 4-membered to 12-membered nonaromatic hydrocarbon ring or nonaromatic heterocyclic ring; at least one of R<1>, a substituent for Z<1> and a substituent for Q includes an alkynyl group; Y represents a counter ion necessary for charge balance; and n represents a number necessary to balance a charge.