| 摘要 |
<p>A photographic recording material suited for producing copies in a dry way by imagewise exposure and overall heating wherein said material contain in a binder medium in admixture a photoreductant, a reducible metal-organic compound and a hydrogen-donating compound from which hydrogen can be abstracted by said photoexposed photoreductant, characterized in that said hydrogen-donating compound is a reductor precursor that corresponds to the following general formula : wherein : each of R10 and R11 (same or different) represent hydrogen, a hydrocarbon group including a straight chain, branched chain, and cyclic hydrocarbon group, which groups may be substituted, or an alkoxycarbonyl group, Z represents a single bond, an ethynylene group or the group wherein n represents a whole number, and each of R12 and R13 (same or different) represents hydrogen, or an alkyl group or together form part of a carbocyclic or heterocyclic ring.</p> |
