| 摘要 |
A lithographic photosensitive material, suitable for exposure with light from a neon-helium laser, comprising a support having thereon a silver halide emulsion layer containing at least one sensitizing dye represented by the following general formula (I): <IMAGE> (I) <IMAGE> wherein Z and Z1, which may be the same or different, each represents the non-metal atoms necessary for completing a 5-membered or 6-membered nitrogen-containing heterocyclic nucleus; R and R1, which may be the same or different, each represents an alkyl group or an aryl group; Q and Q1 together represent the non-metal atoms necessary for completing a 4-thiazolidinone, 5-thiazolidinone, or 4-imidazolidinone nucleus; L, L1 and L2 each represents a methine group; n1 and n2 each represents 0 or 1; X represents an anion; and m represents 0 or 1, with m being 0 when the dye forms an internal salt; with the silver halide emulsion layer or a layer adjacent the silver halide emulsion layer containing at least one compound represented by the following general formula (II): D1-A-D2 (II) wherein D1 and D2, which may be the same or different, each represents a condensed polycyclic aromatic heterocyclic residue or an aromatic heterocyclic substituted amino group, wherein the polycyclic aromatic heterocyclic residue or the aromatic heterocyclic substituted amino group may contain an -SO3M group wherein M represents a hydrogen atom or a cation; and -A- represents a divalent aromatic residue which may contain an -SO3M group wherein M has the same meaning as above; with the proviso that when D1 or D2 does not contain an -SO3M group, -A- contains an -SO3M group; and with the silver halide photographic material containing at least one polyalkylene oxide compound capable of increasing infectious development.
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