To provide a heat-developable photosensitive material, having high sensitivity and giving a blue-tone image having high sharpness and suitable for image observation.
The heat-developable photosensitive material to be exposed with laser light in a wavelength region of 640-790 nm (1) contains a not decolorable anti-irradiation dye having a half-value width of ≤150 nm in a layer on the image forming layer side of a support and (2) contains a not decolorable antihalation dye, having a half-value width of ≤150 nm in the layer on the back side of the support opposite to the image forming layer side, wherein (3) the absorption density (D(EM)) of the image forming layer side and the absorption density (D(BC)) of the back side at an exposure wavelength satisfy the relations of Equation (1): D(EM)/D(BC)=0.2-1.5 and Equation (2): D(EM)+D(BC)=0.3-0.8.
Kato Kazunori
Katsuichi Nishimoto
Hiroshi Fukuda
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