| 摘要 |
A direct positive silver halide photographic light-sensitive material comprising a support having thereon at least one silver halide emulsion layer of the internal latent image type and being capable of forming a direct positive image, in which at least one hydrophilic colloid layer contains at least one heterocyclic quaternary salt compound represented by the following general formula (I) <IMAGE> (I) wherein Z represents an atomic group necessary for forming a 5- or 6-membered heterocyclic nucleus, R1 represents an aliphatic group, R2 represents a hydrogen atom or an aliphatic group, R3 and R4, which may be the same or different, each represents a hydrogen atom, a halogen atom, an aliphatic group, an alkoxy group, a hydroxy group or an aromatic group, and at least one of R1, R2, R3 and R4 represents a propargyl group, a butynyl group or a substituent containing a propargyl or butynyl group, X(-) represents an anion, n is 1 or 2, with n being 1 in the case that the compound forms an inner salt; in such an amount as to exert a fogging effect on the silver halide emulsion of the internal latent image type.
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