Abstract: A heat-developable photosensitive material of which thermal fogging is markedly suppressed without detriment to image characteristics such as sensitivity, which is prepared by forming a single layer or multiple layers of a heat-developable photosensitive element comprising at least (a) an oxidation-reduction image-forming component comprising a long-chain fatty acid silver salt and a reducing agent, (b) a photosensitive silver halide or/and a photosensitive slilver halide-forming component, (c) a binder, and (d) at least one member selected from the compounds represented by the following general formula:HOOC--R--COOHwherein R represents an alkylene or alkenylene group of at least 4 carbon atoms which may be linear or branched, on a support.

Abstract: A process for producing a heat-developable photosensitive material containing fine photosensitive silver halide particles having a uniform particle form and particle size, said silver halide being prepared by reacting a silver salt of an organic fatty acid stoichiometrically with an inorganic or organic halogen compound.

Abstract: An image-forming photosensitive composition comprises:(a) an organohalogen compound capable of forming a free radical by the irradiation with light,(b) a substantially colorless dye which colors when it is contacted with an acidic substance,(c) an aromatic amine and/or conjugated nitrogen-containing heterocyclic compound,(d) a binder, and(e) an aliphatic amine and/or alicyclic amine.