| 摘要 |
PROBLEM TO BE SOLVED: To obtain a heat-developable photosensitive material having very low volatility and producing no harmful effect on the environment and human body by incorporating a specified polyhalogen compound having a substituted aryl or heterocyclic sulfonyl group and a very low volatility. SOLUTION: The heat-developable photosensitive material contains a photosensitive silver halide, a reducible silver salt, a reducing agent, an ultrahigh contrast imparting agent, a binder and at least one compound of the formula on at least one face of the substrate. In the formula, X is a halogen, R1 is a substituted aryl or a heterocyclic group, R2 is a substituent, (r) is an integer of 0-4, and in the case of r>=2, plural symbols R2 may be mutually the same or different. Since the compound having a very low volatility is used, the photosensitive material is very low in fog, high in safety and high in contrast.
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