| 摘要 |
PROBLEM TO BE SOLVED: To provide a heat developable photosensitive material having low fog and high Dmax (maximum density), less liable to increase fog even after long-term storage and after short-term storage at high temperature and less liable to increase fog even after long-term storage after processing. SOLUTION: In the heat developable photosensitive material having a non- photosensitive organic silver salt, photosensitive silver halide, a reducing agent for silver ions and a binder on one face of the base, at least one compound imagewise generating a chemical species capable of forming development starting points on the non-photosensitive organic silver salt and in its vicinities is contained and the photosensitive silver halide has been spectrally sensitized in the range of 750-1,400 nm.
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