HEAT DEVELOPABLE PHOTOSENSITIVE MATERIAL

PROBLEM TO BE SOLVED: To attain reduced fog and increased sensitivity and to reduce the irritant odor of a residual solvent in a coating step by forming a specified photosensitive layer which has more than the prescribed projection area to the entire projection area of the photosensitive layer containing silver halide grains and flat platy organic silver salt grains. SOLUTION: The heat developable photosensitive material has at least one photosensitive layer on the substrate and the total projection area of silver halide grains and flat platy org. silver salt grains in the at least one photosensitive layer is >=35% of the projection area of the entire photosensitive layer. The flat platy org. silver salt grains are preferably monodisperse grains of