| 摘要 |
A black and white monosheet thermographic recording material comprising a support and a thermosensitive element, the thermosensitive element containing a substantially light-insensitive organic silver salt, an organic reducing agent therefor in thermal working relationship therewith, a binder and at least one five-membered heterocyclic ring compound selected from the group consisting of optionally substituted, optionally annelated 1-thia-2,3-diazole compounds; optionally substituted, optionally annelated 1-thia-2,5-diazole compounds; optionally substituted 1-thia-2,4-diazole compounds; optionally substituted 1-thia-3,4-diazole compounds; optionally substituted thiatriazole compounds; optionally substituted, optionally annelated 1 -seleno-2,3-diazole compounds; optionally substituted, optionally annelated 1-seleno-2,5-diazole compounds; optionally substituted 1 -seleno-2,4-diazole compounds; optionally substituted 1-seleno-3,4-diazole compounds; and optionally substituted selenotriazole compounds, with the proviso that the at least one compound is not substituted with or contain a mercapto, a -SO<SUB>2</SUB>CBr<SUB>3</SUB>, a -S-alkylene-COOH or a N-acyl-hydrazine group.
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