Abstract: The present invention provides a black and white photothermographic material having, on at least one side of a support, an image forming layer containing at least a photosensitive silver halide, a non-photosensitive organic silver salt, a reducing agent for silver ions, and a binder, as well as an image forming method. The black and white photothermographic material is characterized in that 50% or more of a total projected area of the photosensitive silver halide is occupied by tabular grains having a (111) face as a major face; the tabular grains have at least 2 parallel twin crystal planes in a grain; and a variation coefficient of a distribution of distances between closest twin crystal planes is 20% or less. Also provided is an image forming method that includes image exposure using fluorescent intensifying screens and thermal development.

Abstract: The present invention provides a black and white photothermographic material having, on at least one side of a support, at least a photosensitive silver halide, a non-photosensitive organic silver salt, and a reducing agent for silver ions, wherein the reducing agent for silver ions is a compound represented by the following formula (PP) and having a molecular weight of from 450 to 3000, and the black and white photothermographic material further comprises a compound represented by the following formula (II).

Abstract: A photothermographic material having a Dmin and Dmax optical density. The material includes a support having hereon one or more thermally-developable imaging layers which are developable to produce an image when the photothermographic material is thermally processed; and an area disposed along a length of at least one edge of the photothermographic material, wherein the area has an optical density less than the Dmax and greater than the Dmin of the photothermographic material.

Abstract: Incorporating a combination of phenolic reducing agents provides thermally developable materials with improved silver efficiency and hot-dark print stability without loss in other sensitometric properties. Both photothermographic and thermographic materials are provided, and particularly photothermographic materials having lower silver coverage.

Abstract: The present invention provides a photothermographic material having, on a support, an image forming layer including at least a photosensitive silver halide, a non-photosensitive organic silver salt, a reducing agent, and a binder, and at least one non-photosensitive layer, wherein a mean particle size of the non-photosensitive organic silver salt is 0.

Abstract: A silver salt photothermographic dry imaging material including non-photosensitive aliphatic carboxylic acid silver salts; a photosensitive emulsion containing photosensitive silver halide grains; a silver ion reducing agent; a binder; and a cyan coloring leuco dye. A percentage of the photosensitive silver halide grains having a mean particle size of 0.01 or more ?m and 0.04 ?m or less is 5% or more by mass and 50% or less by mass of total photosensitive silver halide grains by conversion into a silver amount.

Abstract: Disclosed is a photothermographic material comprising an image forming layer containing at least a light-sensitive silver halide, a light-insensitive organic silver salt, a reducing agent and a binder and a non-image forming layer on at least one surface of a support, wherein 50% by weight or more of the binder is a hydrophilic binder, the light-sensitive material further comprising a metal phthalocyanine compound represented by the following formula (PC-1): wherein M represents a metal atom, R1, R4, R5, R8, R9, R12, R13 and R16 respectively represent a hydrogen atom or a substituent where at least one of R1, R4, R5, R8, R9, R12, R13 and R16 is an electron attractive group and R2, R3, R6, R7, R10, R11, R14 and R15 respectively represent a hydrogen atom or a substituent.

Abstract: A method of processing a photothermographic material by a thermal processor is disclosed, wherein the photothermographic material comprises on one side of a support a light-sensitive layer containing an organic silver salt, silver halide grains, a binder and a reducing agent and a light-insensitive layer and on the other side of the support a back coating layer; the thermal processor uses a transport system in which a feed roller is disposed with being in contact with a bundle of plural stacked film sheets of the photothermographic material so as to feed the uppermost film sheet of the bundle of film sheets through rotation of the feed roller to expose and develop the fed film sheet; and the back coating layer contains a matting agent of an organic resin.

Abstract: A photothermographic material containing an image forming layer having at least a photosensitive silver halide, a non-photosensitive organic silver salt, and a reducing agent for the organic silver salt on one side of a support, and a first non-photosensitive layer containing a dye fixing agent for a water-soluble dye, a second non-photosensitive layer disposed between the support and the first non-photosensitive layer, and a third non-photosensitive layer forming an outermost layer on the other side of the support, wherein at least one layer among the first, second and third non-photosensitive layers contains the water-soluble dye. The invention provides a photothermographic material which exhibits high image quality and excellent image storability, and a manufacturing method thereof.

Abstract: Disclosed is an image forming process having the steps of exposing by an exposure device a photothermographic dry imaging material with a support having thereon an image forming layer containing photosensitive silver halide, a reducing agent for silver ions, a binder and a light-insensitive organic silver salt, and developing the photothermographic dry imaging material by a developing device, while the photothermographic dry imaging material is transported, wherein a surface having the image forming layer is brought into contact with sticky rollers during or before each of exposing and developing so as to make an amount of peel-off static electrification between the photothermographic dry imaging material and the sticky roller to be from ?5 to +5 kV.

Abstract: A photothermographic material including, on at least one surface of a support, at least a photosensitive silver halide containing a silver iodide at 40 mol % or more, a non-photosensitive organic silver salt, and a reducing agent, wherein the photothermographic material contains two or more kinds of the reducing agent at the mixing ratio to satisfy at least one of a), b), c) and d): a) a difference between a sensitivity or b) a difference between a maximum density is 0.10 or less, when developed at 120° C. for 10 sec and a sensitivity when developed at 120° C. for 14 sec; c) a difference between a sensitivity or d) a difference between a maximum density is 0.10 or less, when developed at 117° C. for 12 sec and a sensitivity when developed at 123° C. for 12 sec. An image forming method using the photothermographic material is also provided.

Abstract: A photothermographic material including, on at least one side of a support, an image forming layer including at least a photosensitive silver halide, a non-photosensitive organic silver salt, a reducing agent, and a binder, and a non-photosensitive layer, wherein the photothermographic material contains a metal phthalocyanine dye represented by formula (I): wherein, M represents a metal atom; R1, R2, R3, R4, R5, R6, R7, and R8 each independently represent a hydrogen atom or a substituent, with at least one of them being a substituent; X1, X2, X3, and X4 each independently represent a hydrogen atom or a substituent; and at least one of R1, R2, R3, R4, R5, R6, R7, R8, X1, X2, X3, and X4 is an oil-soluble group. The invention provides a photothermographic material which exhibits preferable image tone and excellent image storability.

Abstract: The invention provides a black and white photothermographic material comprising an image forming layer containing on at least one side of a support at least a photosensitive silver halide, a non-photosensitive organic silver salt, a reducing agent for silver ions, and a binder, wherein: the non-photosensitive organic silver salt comprises at least one compound selected from a silver salt of an azole compound or a silver salt of a mercapto compound; and the photothermographic material further comprises, a compound that can be one-electron-oxidized to provide a one-electron oxidation product which releases one or more electrons, and an adsorptive redox compound having a group adsorbable to the silver halide and a reducing group in the molecule. The invention provides a black and white photothermographic material having high image quality and an excellent storability, and an image forming method.

Abstract: The present invention provides a photothermographic material having, on at least one side of a support, an image forming layer including at least a photosensitive silver halide, a first non-photosensitive organic silver salt, a reducing agent, and a binder, and a non-photosensitive layer including a second non-photosensitive organic silver salt that is different from the first non-photosensitive organic silver salt on the same side of the support as the image forming layer and farther from the support than the image forming layer, wherein the photothermographic material further has a non-photosensitive intermediate layer between the image forming layer and the non-photosensitive layer, and 50% by weight or more of a binder in the non-photosensitive intermediate layer is a polymer latex. A photothermographic material, which exhibits improved image storability and improved resistance to image defects, is provided.

Abstract: The present invention provides a black and white photothermographic material having, on at least one side of a support, at least a photosensitive silver halide, a non-photosensitive organic silver salt, a color developing agent, and a coupler which reacts with an oxidation product of the color developing agent to form a dye, wherein a mean particle size of the non-photosensitive organic silver salt is 0.38 ?m or less. A black and white photothermographic material which exhibits high sensitivity, high density, excellent image tone, and excellent coating ability is provided.

Abstract: The present invention provides a photothermographic material having, on one side of a support, an image forming layer including at least a photosensitive silver halide, a non-photosensitive organic silver salt, a reducing agent for the organic silver salt, and a binder, and at least one non-photosensitive layer and, on the other side of the support, a non-photosensitive back layer, wherein a total amount of ammonia contained in the two sides is from 5×10?4 mol/m2 to 2×10?2 mol/m2, and a molar ratio (A2/A1) of an ammonia content of the non-photosensitive back layer (A2) to an ammonia content of the layer on the image forming layer side (A1) is from 0.3 to 5.0; or a photothermographic material according to the above, wherein the non-photosensitive back layer includes an ammonium salt, and an ammonia content of the non-photosensitive back layer is from 2 mg/m2 to 100 mg/m2.

Abstract: A photothermographic material is disclosed, comprising on at least one side of a support a light-sensitive silver halide, wherein the photothermographic material further comprises a compound represented by formula (1) and a compound represented by formula (2).

Abstract: An image forming method using a photothermographic material including, on at least one surface of a support, at least a photosensitive silver halide, a non-photosensitive organic silver salt, a reducing agent for silver ions, and a binder, in which (1) the photothermographic material is exposed and thermally developed during transportation at a transportation speed of 23 mm/sec or faster, (2) the non-photosensitive organic silver salt contains 30 mol % to 85 mol % of silver behenate and an amount of the time until a leading end of the photothermographic material reaches a thermal development station after a power source for ae thermal developing apparatus is turned on is 15 minutes or less, or (3) a coating amount of silver inf the photothermographic material is 1.9 g/m2 or less and a thermal development time is 12 sec or less.

Abstract: Incorporating a crown ether-alkali metal complex cation of an enolate anion of an aldehyde having at least one electron withdrawing group in the alpha (?) position, provides thermally developable materials with imaging properties that have little change with changes in humidity. Both photothermographic and thermographic materials are provided, and particularly photothermographic materials having lower silver coverage.

Abstract: The present invention provides a photothermographic material having, on one side of a support, an image forming layer including at least a photosensitive silver halide, a non-photosensitive organic silver salt, a reducing agent, and a binder, and at least one non-photosensitive layer which is disposed on the same side of the support as the image forming layer and farther from the support than the image forming layer, wherein the non-photosensitive layer includes at least a copolymer latex of an acrylate or methacrylate having a fluorine atom and a monomer component having a hydrophobic group, and the surface of the side having the image forming layer includes convex portions having a height of 1.5 ?m or higher in an amount of from 20 to 2000 per 1 mm2. A photothermographic material which exhibits excellent film physical properties and high image quality is provided.

Abstract: A mono-sheet heat-developable photosensitive material, which comprises a layer containing a light-sensitive silver halide, a light-insensitive organic fatty acid silver salt, a thermal developer and a binder on a support, and exhibits substantially no sensitivity after being subjected to heat-development.

Abstract: A photothermographic material having, on both sides of a support, an image forming layer including at least a photosensitive silver halide, a non-photosensitive organic silver salt, a reducing agent for silver ions, and a binder, and an image forming method utilizing the same, characterized in that the image forming layer on a first side has an infectious development property, and the image forming layer on the other side does not have an infectious development property or has an infectious development property that is smaller than that of the image forming layer on the first side. The invention provides a double-sided type photothermographic material having improved photographic properties and an image forming method utilizing the same.

Abstract: 1,3-Diaryl-substituted urea compounds have been found to function as post-processing stabilizers in photothermographic materials. These compounds can be presented by the following Structure (I): wherein R1 and R2 are the same or different substituted or unsubstituted aryl group.

Abstract: A heat-developable photosensitive material comprising a support, providing thereon, an organic silver salt, silver halide, a binder and a reducing agent, wherein a value of Rz(E)/Rz(B) is from 0.1 to 0.7 in which Rz(E) is the ten-point average roughness of the outermost surface of the image forming layer side and Rz(B) is the ten-point average roughness of the outermost surface of the side of the support opposite to the side of the image forming layer.

Abstract: The present invention provides a black and white photothermographic material including, on at least one side of a support, at least a photosensitive silver halide, a non-photosensitive organic silver salt, a reducing agent for silver ions, a color developing agent, and a coupler which reacts with an oxidation product of the color developing agent to form a dye, wherein a total amount of ammonia included on one side of the support having thereon the photosensitive silver halide is from 5 mg/m2 to 25 mg/m2, and an optical density of an image formed by imagewise exposing and thermally developing the black and white photothermographic material satisfies the following equation (A): 0.02<Dc<D/4 ??Equation (A) wherein D represents an optical density in a range of from 1 to 2, and Dc represents an optical density obtained by the dye in the optical density of the image.

Abstract: The present invention provides a black and white photothermographic material having, on at least one side of a support, an image forming layer including at least a photosensitive silver halide and a non-photosensitive organic silver salt, and a non-photosensitive layer including at least a coupler, wherein at least one of the image forming layer and the non-photosensitive layer includes a color developing agent; a grain density of the photosensitive silver halide in the image forming layer is from 20 grains/?m3 to 103 grains/?m3; and an optical density of an image formed by imagewise exposing and thermally developing the black and white photothermographic material satisfies the following equation (A): 0.02<Dc<D/4 ??Equation (A) wherein D represents a value of an optical density in a range of from 1.0 to 2.0; and Dc represents an optical density obtained by the dye in the optical density of the image.

Abstract: The present invention provides a black and white photothermographic material having, a first image forming layer including at least a photosensitive silver halide, a non-photosensitive organic silver salt, and a reducing agent for silver ions, wherein the black and white photothermographic material further has a second image forming layer including at least a coupler, and at least one of the first image forming layer and the second image forming layer includes a color developing agent. A black and white photothermographic material which exhibits high sensitivity, excellent image tone, and excellent storage stability is provided.

Abstract: Incorporating a sulfonyldiphenol compound into photothermographic materials improves Raw Stock Keeping and post-processing “hot-dark” print stability especially under harsh environmental conditions such as high temperature.

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: Incorporation of certain arylboronic acid compounds into photothermographic materials provides materials with reduced initial image Dmin and improved hot-dark Dmin print stability without unacceptable loss in sensitometric properties.

Abstract: A black and white photothermographic material including, on at least one side of a support, an image forming layer including at least a photosensitive silver halide, a silver salt of a fatty acid, a reducing agent for silver ions, and a binder, wherein the black and white photothermographic material includes a compound represented by the following formula (I) as the reducing agent and a compound represented by the following formula (BC-1) as a coupler: A black and white photothermographic material which exhibits low fog, high image density, excellent image tone, and excellent raw stock storability is provided.

Abstract: An image forming method using a photothermographic material including, on a support, at least a photosensitive silver halide, a non-photosensitive organic silver salt, a reducing agent for silver ions, and a binder, wherein the photothermographic material includes at least two image forming layers having spectral sensitivities that are different from each other, and wherein the image forming method includes: imagewise exposing the photothermographic material by using at least two laser beams having wavelengths that are different from each other and correspond to photosensitive wavelengths of the image forming layers; and thermally developing the photothermographic material to form a fusion image made up of two or more kinds of image information. An image forming method using a photothermographic material which records a composite image made up of a silver image and a color image of different kinds of image information is provided.

Abstract: The present invention provides a ehat-developabel photosensitive material comprising a support having provided thereon an image forming layer containing a photosensitive silver halide, a non-photosensitive organic silver salt, a reducing agent, and a binder, wherein a binder of an outermost layer at a side of the support at which the image forming layer is provided includes a latex polymer such as an ionomer type urethane polymer latex in an amount of 85 mass % or more, preferably 90 mass % or more, and more preferably 95 mass % or more. The heat-developable photosensitive material may also have a layer adjacent to the outermost layer which layer contains a binder that gels due to temperature reduction or contains a binder containing a water-soluble polymer derived from animal protein in an amount of 50 mass % or more.

Abstract: Bis phenol reducing agents incorporating bicyclic and tricyclic substituents ortho to the hydroxyl groups on the aromatic rings have been found to provide photothermographic materials with improved silver efficiency and stability without significant loss in sensitometric properties.

Abstract: A photothermographic material having, on at least one side of a support, an image forming layer containing at least a photosensitive silver halide, a non-photosensitive organic silver salt, a reducing agent, and a binder, and at least one non-photosensitive layer which is disposed on the same side as the image forming layer and farther from the support than the image forming layer, wherein (1) 50% by weight or more of the binder is a polymer latex having a monomer component having an acid group, and (2) the polymer latex has a core/shell structure having a core part and a shell part, and the monomer component having an acid group in the core part is 2 mol % to 20 mol % of a total amount of the monomer component having an acid group in the polymer latex. The invention provides a photothermographic material which exhibits excellent image uniformity with low fog.

Abstract: The present invention provides a photothermographic material including a support having disposed on one surface thereof at least one image-forming layer containing a binder, an organic silver salt, a reducing agent for reducing silver ions, an organic polyhalogen compound and a photosensitive silver halide, wherein the photosensitive silver halide has a silver iodide content ranging from 10 mol % to 100 mol %. The silver halide further contains at least one metal selected from a first metal group and one metal selected from a second metal group, with a proviso that none of the at least one metal selected from the first metal group and the at least one metal selected from the second metal group are the same.

Abstract: A thermally developable photographic material containing a support, provided thereon: (i) a photosensitive layer containing photosensitive silver halide particles, and (ii) a layer containing at least one represented by formula below on one or both surfaces of the support

Abstract: A photothermographic material including, on at least one side of a support, an image forming layer including at least a photosensitive silver halide, a first organic silver salt, a reducing agent, and a binder, and at least one non-photosensitive layer which is disposed on the same side as the image forming layer and farther from the support than the image forming layer, wherein 50% or more of a total projected area of the photosensitive silver halide is occupied by tabular grains having a silver iodide content of 40 mol % or higher and an aspect ratio of 2 or more, and the non-photosensitive layer comprises a second organic silver salt, and an image forming method using the same. The invention provides a photothermographic material and an image forming method excellent in image tone and image storability.

Abstract: A photothermographic imaging material containing a support having thereon: (i) a photosensitive layer containing photosensitive silver halide grains, light-insensitive organic silver salt grains, a binder, and a reducing agent for silver ions; and (ii) one or more non-photosensitive layers, wherein a powder compound which is preliminarily dried at a lower temperature than a temperature used for thermal development is incorporated in the photosensitive layer or in the non-photosensitive layer.

Abstract: A photothermographic imaging material including a support having thereon an image forming layer containing light-insensitive organic silver salt grains, photosensitive silver halide grains, a reducing agent for silver ions and a binder, wherein: (i) each of the photosensitive silver halide grains produces a larger number of latent images in a surface portion of the grain than in an inner portion of the grain by exposure to light; (ii) each of the photosensitive silver halide grains produces a larger number of latent images in the inner portion of the grain than in the surface portion of the grain after being subjected to a thermal development; (iii) a surface photographic speed of each of the photosensitive silver halide grains decreases after being subjected to the thermal development; and (iv) the photothermographic imaging material contains a reducible silver salt compound represented by Formula (I) described in the specification.

Abstract: A photothermographic material comprising at least (a) a photosensitive silver halide, (b) a reducible silver salt, (c) a reducing compound represented by the following general formula (1), and (d) a binder: Q1—NHNH—R1: ??Formula (1) wherein, in the general formula (1), Q1 represents a 5- to 7-membered unsaturated ring bonding to NHNH—R1 at a carbon atom, and R1 represents a carbamoyl group, an acyl group, an alkoxycarbonyl group, an aryloxycarbonyl group, a sulfonyl group or a sulfamoyl group, provided that when R1 is propylcarbamoyl group, Q1 is not 2,3,5,6-tetrachloro-4-cyanophenyl group. According to the present invention, there is provided a novel photothermographic materials showing high sensitivity, high development speed and little fluctuation of performance due to heat development temperature variation.

Abstract: The present invention provides a photothermographic material having: a support and an image-forming layer including a photosensitive silver halide, a non-photosensitive organic silver salt, a reducer, and a binder on at least one surface of the support, wherein the photothermographic material further contains a dye having a half breadth of 100 nm or less at a maximum absorbance peak, and 50 mass % or more of a binder in an outermost layer on a dye-containing surface is a polymer latex.

Abstract: The present invention provides a photothermographic material having, on at least one side of a support, at least an image forming layer containing a photosensitive silver halide, a non-photosensitive organic silver salt, and a reducing agent for the organic silver salt, and at least one non-photosensitive layer, wherein the material contains a water-soluble magenta dye, and also provides an image forming method.

Abstract: The invention provides a photothermographic material containing, on a support, an image forming layer having at least a photosensitive silver halide, a non-photosensitive organic silver salt and a reducing agent, and at least one non-photosensitive layer, in which the non-photosensitive layer contains a crosslinking agent precursor, in which the crosslinking agent precursor is a compound which releases a crosslinking agent which crosslinks a binder of the non-photosensitive layer at the time of thermal development. A photothermographic material in which water resistance and scratch resistance of an image have been improved is provided.

Abstract: A photothermographic imaging material comprising a support having thereon, (a) a photosensitive layer containing an organic silver salt, photosensitive silver halide grains, a reducing agent and a binder, (b) a light-insensitive layer, and (c) a protective layer, wherein a weight reducing value from 25° C. to 100° C. by a heat drying weight measurement of the photographic imaging material is not more than 0.4% based on a weight value at 25° C.

Abstract: The present invention is directed to a method of forming a positive image in a photothermographic assembly comprising a photothermographic material and an intensifying means for converting ionizing radiation, wherein the assembly has been imagewise exposed to ionizing radiation to form a latent image in the photothermographic material. The photothermographic material has at least one imaging layer comprising a potentially negative-working emulsion, wherein thermal development of unexposed silver salts in exposed areas relative to unexposed areas is inhibiting when thermally developing the imagewise exposed assembly, thereby producing a positive image. The present invention is also directed to a photothermographic assembly that can be used in the present process in which a positive image characterized by high speed and discrimination is formed when exposed and thermally heated above 150° C.

Abstract: A package of thermographic or photothermographic materials has a primary packaging enclosure, and optionally a secondary packaging enclosure, containing one or more of the materials (such as individual sheets). A non-photosensitive indicator device is associated with either or both of the packaging enclosures. This non-photosensitive indicator device is adapted to provide a visually observable indication of a predetermined cumulative thermal exposure and a predetermined temperature event (that is, single temperature event) of the package. This indicator device is able to provide information as to the time-temperature history of the package.

Abstract: A photothermographic material comprising a photosensitive silver halide, a non-photosensitive organic silver salt, a reducing agent for a silver ion and a binder on one surface of a support, wherein a silver behenate-content of the non-photosensitive organic silver salt is 40 to 70 mol %, and the photothermographic material comprises a compound that can be one-electron-oxidized to provide a one-electron oxidation product, which further releases at least 1 electron, one of during and after a subsequent reaction.

Abstract: A photothermographic material wherein at least an image-forming layer on at least one surface of a support, the image-forming layer containing a photosensitive silver halide, a non-photosensitive organic silver salt, a reducing agent, and a binder, wherein, an outermost layer is provided as a layer most remote from the support on the side of the support where the image-forming layer is provided, a non-photosensitive intermediate layer A containing a binder and provided in adjacent with the image-forming layer and between the image-forming layer and the outermost layer, wherein the binder of the non-photosensitive intermediate layer A contains 80% by mass or more of a polymer formed by copolymerizing a monomer represented by Formula (M), a non-photosensitive intermediate layer B containing a binder and provided between the non-photosensitive intermediate layer A and the outermost layer, and the binder of the non-photosensitive intermediate layer B contains 50% by mass or more of a hydrophilic polymer derive

Abstract: A silver salt photothermographic material is disclosed, comprising light-insensitive organic silver salt grains and light-sensitive silver halide grains, a reducing agent for silver ions and a binder, wherein the reducing agent is a compound represented by the following formula (1) and the light-sensitive layer further comprises a hindered phenol represented by the following formula (2)