Abstract: The present invention provides a photothermographic material comprising a substrate, and a photosensitive silver halide, a non-photosensitive organic silver salt, reducing agents for thermal development and a binder which are provided on the substrate, wherein: the reducing agents for thermal development include a reducing agent which does not form a dye during thermal development and a reducing agent which forms a dye during thermal development; and the reducing agent which forms a dye has higher activity than that of the reducing agent which does not form a dye. It is preferable that the reducing agent which forms a dye at thermal development and has a specific chemical structure is contained in an amount of 40% by mol or less relative to a total amount of the reducing agents.

Abstract: Disclosed is a photothermographic material comprising, on one side of a support, a photosensitive silver halide, a non-photosensitive silver salt of an organic acid, a reducing agent for silver ions and a binder, which is characterized by containing one or more phenol compounds as the reducing agent and one or more compounds satisfying at least one of the following requirements A and B in combination:

Abstract: The invention provides a heat developable photosensitive material including a substrate, and at least one constituent layer which contains a photosensitive silver halide, a non-photosensitive organic silver salt, a reducing agent for thermal developing and a binder. The material includes at least one reducing agent that does not form a dye at the time of thermal developing and at least one reducing forming a dye at the time of thermal developing, and the dye-forming reducing agent is more active than the reducing agent that does not form a dye at the time of thermal developing.

Abstract: Disclosed is a photothermographic material comprising, on one side of a support, a photosensitive silver halide, a non-photosensitive silver salt of an organic acid, a reducing agent for silver ions and a binder, which is characterized by containing one or more phenol compounds as the reducing agent and one or more compounds satisfying at least one of the following requirements A and B in combination: A: the hydrogen bond formation rate constant Kf is 20-4000, B: the chemical structure is represented by the following formula (II), (III), (IV) or (V) (R21 and others represent an alkyl group etc.), or has a phosphoryl group. According to the present invention, there is provided a photothermographicmaterial that can provide sufficient image density at practical reaction temperatures (specifically 100-140° C.) with practical reaction times (specifically 1-30 seconds), and can sufficiently suppress coloration of blank portions during storage in the dark after development.

Abstract: A thermal development photosensitive material suitable for medical diagnoses, industrial photography, printing and COM. The material contains at least one photosensitive silver halide, a non-photosensitive organic silver salt, a binder, at least one of compounds represented by the following formula (I) and at least one of compounds represented by the following formula (II) on one surface of a substrate. The material has high sensitivity and provides an image with a tone close to a pure black tone.

Abstract: The present invention relates to, a thermally developable photosensitive material containing a non-photosensitive organic silver salt, photosensitive silver halide and a reducing agent on at least one surface of a transparent substrate, wherein a fog density value immediately after thermal developing treatment is 0.20 or less, a value of b0* in the following equation (1) at a fog density portion satisfies −20≦b0* <−4, and a change in an image tone from immediately after thermal developing treatment to after a point when an amount of time has passed as a value of a color difference &Dgr;E as defined in the equation (1) is any one of (a) 1.2 or less at 9 months under an environment of 30° C. and 60% RH, (b) 1.2 or less at 3 months under an environment of 40° C. and 40% RH, or (c) 0.9 or less at 1 week under an environment of 45° C. and 40% RH.

Abstract: A silver halide color photographic light-sensitive material comprising a support having thereon one or more layers including at least one light-sensitive silver halide emulsion layer comprising at least one coupler which undergoes a coupling reaction with an oxidized product of an aromatic primary amine developer to form a dye, wherein at least one of the layer(s) on said support comprises at least one compound represented by the following formula (I): wherein R1 represents a linear or branched unsubstituted alkenyl group having 3-14 carbon atoms, R2 represents an alkyl group, a cycloalkyl group, a linear or branched unsubstituted alkenyl group having 3-14 carbon atoms, R3 represents a group capable of being substituted on the benzene ring, and m represents an integer from 0 to 4. This may be use as a light-sensitive material which can provide a stable color-image.

Abstract: A photothermographic material containing a photosensitive silver halide, a non-photosensitive organic silver salt, a reducing agent for thermal development, and a binder, and further includiing a fluorine compound containing a fluoroalkyl group having 2 or more carbon atoms and 13 or less fluorine atoms. The material is characterized in that the photosensitive silver halide contains silver iodide within a range of 40 mol % to 100 mol %.

Abstract: The present invention relates to a heat developing photosensitive material comprising, on one side of a support, a photosensitive silver halide, a non-photosensitive organic silver salt, a reducing agent for a silver ion, and a binder; and further comprising an aromatic carboxylic acid compound represented by a general formula (2), which is on the same side as the photosensitive silver halide, and a development promoter; which reducing agent includes a compound represented by a general formula (1) below.

Abstract: A photothermographic material comprising: a substrate; and a photosensitive silver halide, anon-photosensitive organic silver salt, a reducing agent and a binder, in a same region defined by the substrate, wherein the photothermographic material further comprises a fluorine compound which comprises at least one fluoroalkyl group having 2 or more of carbon atoms and not more than 13 of fluorine atoms and at least one of anionic and nonionic hydrophilic groups, and 40 to 98% by mol of the non-photosensitive organic silver salts are silver behenate.

Abstract: A silver halide color photographic light-sensitive material comprising a support having thereon one or more layers including at least one light-sensitive silver halide emulsion layer comprising at least one coupler which undergoes a coupling reaction with an oxidized product of an aromatic primary amine developer to form a dye, wherein at a least one of the layer(s) on said support comprises at least one compound represented by the following formula (I): 1

Abstract: A method for wrapping a heat-developable photosensitive material, which comprises bending a wrapping material so that the wrapping material can bring into direct contact with at least a part of a heat-developable photosensitive material comprising a photosensitive silver halide, a reducing agent, a binder and a non-photosensitive organic silver salt having a silver behenate content of not lower than 53 mol % provided on one side of a support, wherein the wrapping material is a paper.

Abstract: The thermally developable photosensitive material of the present invention has a support and including on at least one surface of the support a photosensitive silver halide, a non-photosensitive organic silver salt, a reducing agent for thermal development, a binder and a compound represented by the following general formula (1): 1

Abstract: A heat-developable photosensitive material comprises: a support; a light-sensitive silver halide; a reducing agent for a silver ion; a binder; and a light-insensitive organic silver salt grain, wherein the light-insensitive organic silver salt grain contains a silver behenate in an specific amount.

Abstract: A photothermographic material comprising: a reflective support; a photosensitive silver halide; a non-photosensitive organic silver salt; a reducing agent for silver ions; a binder; and an organic polyhalogen compound.

Abstract: The present invention provides a heat developable photosensitive material comprising at least a photosensitive silver halide, a non-photosensitive organic silver salt, a reducing agent for silver ions and binder on one surface of a support.

Abstract: A heat developable light-sensitive material high in heat development activity, excellent in image keeping quality, high in sensitivity and rapidly developable, comprising a support having provided on one side thereof a light-sensitive silver halide, a light-insensitive organic silver salt, a reducing agent for a silver ion and a binder, wherein the reducing agent is a compound represented by the formula (I), and an aromatic carboxylic acid compound represented by the formula (A) and a hydrogen bonding compound are further provided on the same side where the light-sensitive silver halide is provided.

Abstract: A photothermographic material of the present invention comprises: a support; a photosensitive silver halide; a non-photosensitive organic silver salt; a heat developer; a binder; and a fluorine compound containing a specific structure.

Abstract: Bisphenol-phosphorus compound complexes represented by the following general formula (1) are disclosed (R1 to R4 represent hydrogen atom or a group that can be a substituent on a benzene ring; L represents —S— group or a —CHR5— group where R5 represents hydrogen atom or an alkyl group; and R6 to R8 represent an alkyl group, an aryl group, a heterocyclic group etc.). The present invention provides reducing agents that can realize thermally processed image recording materials that can provide sufficient image density at a practical reaction temperature (specifically 100-140° C.) and within a practical reaction time (specifically 1-30 seconds), and can sufficiently suppress the coloration of white portions when the materials are stored in a dark place after the development.

Abstract: Bisphenol-phosphorus compound complexes represented by the following general formula (1) are disclosed (R1 to R4 represent hydrogen atom or a group that can be a substituent on a benzene ring; L represents —S— group or a —CHR5— group where R5 represents hydrogen atom or an alkyl group; and R6 to R8 represent an alkyl group, an aryl group, a heterocyclic group etc.). The present invention provides reducing agents that can realize thermally processed image recording materials that can provide sufficient image density at a practical reaction temperature (specifically 100-140° C.) and within a practical reaction time (specifically 1-30 seconds), and can sufficiently suppress the coloration of white portions when the materials are stored in a dark place after the development.