Abstract: Disclosed is a photothermographic material having a support, at least one photosensitive layer containing a silver halide and a reducing agent and a non-photosensitive layer containing aggregates of a dye, wherein a transmission absorption spectrum of the aggregates has a maximum absorption wavelength within the range of 600-750 nm. The photothermographic material is easy to handle and provide an image having sufficient definition without residual color after development. The photothermographic material is suitable for light exposure with a red laser.

Abstract: The present invention provides a photothermographic material having an image forming layer including at least a photosensitive silver halide, a non-photosensitive organic silver salt, a reducing agent and a binder, on one surface of a support, and having at least one back layer and a back surface protective layer, on the other surface of the support, wherein a binder of the back surface protective layer contains a water-soluble polymer and a latex polymer having a glass transition temperature of −30° C. to 40° C.; and an image forming method using the same.

Abstract: The present invention provides a photothermographic material which includes at least a photosensitive silver halide, a non-photosensitive organic silver salt, a reducing agent, and a binder, on a support, and contains (a) a first dye having an absorption maximum in a range of 370 nm to 420 nm and (b) a second dye satisfying the following conditions (1) and (2) in the CIELAB color space:

Abstract: A method of producing a thermal-developable photosensitive material is provided, which prevents mixing of materials between layers to ensure that the coating surface is in a good condition. In this method, liquids for forming a photosensitive layer, an intermediate layer and a protective layer are simultaneously applied in a multilayer form on a substrate to produce a thermal-developable photosensitive material. A pH of the intermediate layer coating liquid is adjusted within a range from 5 to 10 and a viscosity of the intermediate layer coating liquid is adjusted within a range from 20 to 150 mPa·s. Moreover, a pH buffering salt is added to the intermediate layer coating liquid.

Abstract: The invention provides a photothermographic material comprising, on a surface of a substrate, a photosensitive silver halide, a non-photosensitive organic silver salt, a reducing agent and a binder, a halogen compound represented by the following formula (A), and a development accelerator.

Abstract: A preparation process for a first aqueous dispersion comprising an ex-situ photosensitive silver halide and a substantially light-insensitive silver salt of an organic carboxylic acid, comprising the steps of: separately preparing a second aqueous dispersion comprising the ex-situ photosensitive silver halide and a third aqueous dispersion comprising the substantially light-insensitive silver salt of an organic carboxylic acid; and mixing the second aqueous dispersion with the third aqueous dispersion to produce a mixture thereof, characterized in that the first aqueous dispersion thereby produced is substantially free of a water-soluble metal or ammonium salt of an aliphatic carboxylic acid with greater than 12 carbon atoms and the process further comprises a step selected from the group consisting of: increasing the pH of the second aqueous dispersion to a value of at least 8.0 prior to mixing with the third aqueous dispersion; increasing the pH of the third aqueous dispersion to a value of at least 8.

Abstract: A thermally processed image forming material containing elsewhere on a support a reducing agent, a binder and non-photosensitive fatty silver salt grains was disclosed, in which (1) the non-photosensitive fatty acid silver salt grains are prepared by mixing and reacting a silver ion-containing solution, the solvent of which being water or a mixture of water and an organic solvent, with a solution of a fatty acid alkali metal salt, the solvent of which being water, an organic solvent, or a mixture of water and an organic solvent, in a closed mixing means, or (2) the non-photosensitive fatty acid silver salt grains are prepared by micro-dispersing the reaction mixture at an operating pressure of 1,800 kg/cm2 or above using a ultrahigh pressure dispersion apparatus. Such thermally processed image forming material is excellent in the coated surface quality, and can afford an image which is low in fog and high in Dmax (maximum density).

Abstract: The present disclosure relates to aqueous dispersions of silver (carboxylate-azine toner) particles wherein the azine content of the particles is from about 0.01 to 10% by weight relative to silver carboxylate. The carboxylates are typically silver salts of long chain fatty acids and the azine toners are the compounds that function as development accelerators and toning agents such as phthalazine. These silver (carboxylate-azine) particles can be used to formulate imaging forming compositions that are useful in aqueous thermographic or photothermographic imaging elements.

Abstract: A photothermographic film and a method for making same is taught. The film includes a support, a photothermographic imaging layer coated on the support, and a complement film generally confining the photothermographic imaging layer between the support and the complement film. The complement film is applied to the photothermographic imaging layer prior to exposure of the photothermographic imaging layer. The complement film retains any volatile materials present in the photothermographic imaging layer generated when thermal energy is applied thereto to develop a latent image exposed on the photothermographic imaging layer.

Abstract: Thermally developable compositions such thermographic and photothermographic emulsions include certain triazine-thione compounds. These emulsions can be used in thermally developable materials such as thermographic and photothermographic materials to provide increased image density and shortened development time, and to allow development at lower temperatures. Such materials can have imaging layers on one or both sides of the support.

Abstract: A substantially light-insensitive black and white monosheet thermographic recording material comprising a support and a thermosensitive element, said thermosensitive element containing a substantially light-insensitive organic silver salt, an organic reducing agent therefor in thermal working relationship therewith, a binder and at least one 2-mercapto-benzothiazole compound represented by formula (I): 1

Abstract: This invention relates to an imaging element comprising an imaging layer having associated therewith a compound of Structure I: 1

Abstract: This invention relates to an imaging element comprising an imaging layer having associated therewith a compound of Structure I: wherein: the substituents are as defined in the application.

Abstract: This invention relates to an imaging element comprising an imaging layer having associated therewith a compound of Structure I: wherein: the substituents are as defined in the application.

Abstract: Disclosed is a photothermographic material comprising a support, a photosensitive layer containing a silver halide having a silver iodide content of 10 mol % or more and a reducing agent and a non-photosensitive layer provided on the support, wherein at least one of the photosensitive layer and the non-photosensitive layer contains a dye showing an absorption maximum in a wavelength range of 350 nm to 430 nm. The photothermographic material exhibits high image quality, superior color tone and superior image stability after development.

Abstract: Thermographic and photothermographic materials comprise a barrier layer to provide physical protection and to prevent migration of diffusible imaging components and by-products resulting from high temperature imaging and/or development The barrier layer comprises 15 to 100 weight % of a film-forming cellulose ether polymer. This barrier layer is capable of retarding diffusion of mobile chemicals such as fatty carboxylic acids, developers, and toners. This barrier layer can also include other film-forming polymers to provide a clear and scratch-resistant surface.

Abstract: A photothermographic imaging material having a support; a photosensitive layer containing photosensitive silver halide particles on one face of the support; and a non-photosensitive layer provided on a side of the support where the photosensitive layer is provided. At least one of the photosensitive layer and the non-photosensitive layer contains an organic silver salt, a reducing agent, a compound represented by the Formula (1) and a compound represented by the Formula (2a).

Abstract: The present invention relates to a thermal developing photographic element comprising a radiant energy absorbing material incorporated into said photothermal film.

Abstract: Thermally developable compositions such thermographic and photothermographic emulsions include certain heterocyclic disulfide compounds and ascorbic acid or reductone reducing agents. These compositions can be used in thermally developable materials such as thermographic and photothermographic materials to provide increased image density and shortened development time, and to allow development at lower temperatures. Such materials can have imaging layers on one or both sides of the support.

Abstract: A high silver iodide photographic emulsion is provides, which has a high sensitivity and a narrow size distribution, and is a photosensitive silver halide photographic emulsion having a silver iodide content of 90 mol % or more, wherein the average grain size (R) and the average crystallite size (r) of silver halide emulsion grains in the emulsion satisfy the relationship of 1≦R/r<2.

Abstract: Nonpolymeric fluorochemicals defined as by the following Structure I are useful in thermally developable materials.

Abstract: A photothermographic recording material comprising a support and a photo-addressable thermally developable element, the photo-addressable thermally developable element containing a mixture of a substantially light-insensitive silver salt of a monocarboxylic acid and a substantially light-insensitive compound exclusive of silver succinate represented by formula (I): AgOOC—R1—COOAg wherein R1 is a straight chain saturated or unsaturated hydrocarbon group with two or three carbon atoms, optionally substituted with one or more of ═O, ═S, ═CR2R3, an alkyl group, an aryl group, an amino group, a substituted amino group, a cycloalkyl group, a hydroxy group, a thiol group, an alkyl sulphone group, an aryl sulphone group, an alkoxy group, an acyloxy group, a thioalkyl group, a thioaryl, a carbamic ester group, a halogen atom or a —(C═O)R4 group; wherein if R1 is substituted with two substituents selected from the group consisting of alkyl, thioalkyl, substituted amino and alkox

Abstract: High-speed black-and-white photothermographic materials can be imaged in any suitable fashion using ultraviolet, visible, infrared, or X-radiation. They can have one or more thermally developable imaging layers on either or both sides of the support and can be imaged with or without a phosphor intensifying screen in an imaging assembly. The photothermographic emulsions and materials have a net Dmin less than 0.25, and require less than 1 erg/cm2 to achieve a density of 1.00 above net Dmin.

Abstract: A photothermographic material including a substrate carrying on one surface thereof an image forming layer containing at least a photosensitive silver halide, a non-photosensitive organic silver salt, a reducing agent for a silver ion, and a binder, wherein the photosensitive silver halide has a silver iodide content of 40 to 100 mol %, and an average particle size of 5 to 80 nm, and the photothermographic material contains a compound of the following general formula (1);

Abstract: Disclosed is a photothermographic material comprising a support, a photosensitive layer containing a silver halide having a silver iodide content of 10 mol % or more and a reducing agent and a non-photosensitive layer provided on the support, wherein at least one of the photosensitive layer and the non-photosensitive layer contains a dye showing an absorption maximum in a wavelength range of 350 nm to 430 nm. The photothermographic material exhibits high image quality, superior color tone and superior image stability after development.

Abstract: In accordance with one embodiment of the invention, a photographic element is described comprising a support bearing one or more hydrophilic colloid layers including at least one photographic silver halide emulsion layer, wherein sequestered silver ions are incorporated into at least one hydrophilic colloid layer in the form of a silver ion containing material which sequesters silver ions prior to photographic processing and releases silver ions upon exposure to photographic processing solutions. Method for preparing and processing such photographic element are also described. In accordance with particular embodiments of the invention, the silver ion containing material comprises a silver ion-exchanged zeolite material or an intercalation composition comprising a layered host material having silver ions inserted as guest ions between the layers of the host material.

Abstract: A silver halide photosensitive material having a substrate, a heat-responsive-discolorable coloring layer and a photosensitive layer coated thereon and having a silver halide, dye-providing compound and a binder, the heat-responsive-discolorable coloring layer containing a heat-responsive-discolorable coloring composition, which is colored at a temperature lower than its discoloration initiation temperature (T) of 60 to 200° C.; which is substantially discolored at a temperature equal to or higher than T; and which does not recover its color once discolored, even when its temperature is lowered to a temperature lower than T again, and the heat-responsive-discolorable coloring composition containing a polymer having a glass transition temperature of 60 to 200° C.

Abstract: Disclosed is a photothermographic material comprising a support having disposed on a surface thereof, a non-photosensitive silver source, a photosensitive silver halide, and a reducing agent, and having disposed another surface thereof at least one non-photosensitive layer, wherein at least one of the non-photosensitive layers contains at least one type of gelatin having an isoelectric point of from 5.0 to 9.5; and a method for processing the photothermographic material.

Abstract: The present invention is directed to a photothermographic element comprising at least one imaging layer with a pyrrolotriazole coupler and a developing agent, or precursor thereof, the combination of which is capable of forming an image record in the infrared region of the light spectrum in response to a selected hue of visible light. This expedient leads to the formation of high quality images, especially when scanning photothermographic elements in which the silver halide, metallic silver, and/or any organic silver salts have not been removed. Also disclosed is a method for photothermographically forming a developed image comprising an infrared image record.

Abstract: Disclosed is a photothermographic material having a support, at least one photosensitive layer containing a silver halide and a reducing agent and a non-photosensitive layer containing aggregates of a dye, wherein a transmission absorption spectrum of the aggregates has a maximum absorption wavelength within the range of 600-750 nm. The photothermographic material is easy to handle and provide an image having sufficient definition without residual color after development. The photothermographic material is suitable for light exposure with a red laser.

Abstract: A thermographic recording element having at least one image forming layer contains an organic silver salt, a reducing agent, and optionally, a photosensitive silver halide. The element further contains a substituted alkene derivative of specific structure and preferably a specific hydrazine derivative. The element can be processed in a fully dry basis to produce images having high Dmax and gradation and free of black pepper.

Abstract: The second silver halide photosensitive material comprises a substrate and at least one photosensitive silver halide emulsion layer formed thereon, the silver halide photosensitive material comprising at least two types of silver halide grains with different projected areas having photosensitivity in the same photosensitivity range; silver halide grains having a larger projected area having a refractive index n1 and an average thickness a, and silver halide grains having a smaller projected area having a refractive index n2 and an average thickness b; and the silver halide grains satisfying the conditions defined by the following equation (1):

Abstract: In the apparatus for liquid preparation, the silver halide emulsion contained in a dedicated pot is transferred as liquid by a mohno pump via a piping into a measuring tank. The silver halide emulsion transferred into the measuring tank is measured with a load cell and is melted by heating with a jacket while being stirred by a stirrer. Accordingly, even when a small amount is used as in the case of the silver halide emulsion used in the heat-developable photosensitive material, the time for heating the silver halide emulsion, within the time range from the liquid preparation of the silver halide emulsion to its utilization, can be made short to the utmost, and hence the time elapse in melt can be suppressed. Thus, the time elapse in melt, reagent loss, and mutual contamination in the liquid preparation of photographic reagents can be effectively prevented.

Abstract: A process for producing an aqueous dispersion comprising: preparing a dispersion of photosensitive silver halide and a binder or a surfactant in an aqueous medium; and subsequently either (a) adding a first silver salt to the silver halide dispersion and then adding a second silver salt; or (b) adding the second silver salt to the silver halide dispersion and then adding the first silver salt, wherein the aqueous dispersion is substantially free of a water-soluble metal or ammonium salt of an aliphatic carboxylic acid with greater than 12 carbon atoms, the first silver salt is a substantially light-insensitive and substantially water-insoluble silver salt of an organic carboxylic acid, and the second silver salt has a water-solubility greater than 0.1 g in 1 L of water at 20° C.; an aqueous dispersion obtainable therewith; a photothermographic recording material prepared with the aqueous dispersion; and a process for preparing the photothermographic recording material.

Abstract: The present invention provides a heat-developable photosensitive material having a substrate, an undercoat layer and a photosensitive layer containing silver behenate in this order, wherein an adhesive roll having an adhesive force of at least 35 hPa is brought into contact with one face or both faces of the photosensitive material before the photosensitive layer is formed, and a method of producing the same.

Abstract: A planographic printing plate material and a method of preparing a planographic printing plate are disclosed, the planographic printing plate material comprising a support and provided thereon, one or more structural layers containing light sensitive silver halide grains, organic silver salt grains, a reducing agent, a contrast-increasing agent and a physical developing nucleus.

Abstract: A method for producing an image comprising a step for heat-developing after light exposure a photothermographic material containing elsewhere on a support a non-photosensitive organic acid silver salt, a photosensitive silver halide, a nucleation aid, a binder and at least one compound expressed by the formula (A) below, at a line speed of 140 cm/min or faster: [where R1, R2, R3, X1 and X2 independently represent a hydrogen atom, halogen atom or the like; at least either one of X1 and X2 is a group expressed as —NR4R5, where R4 and R5 independently represents a hydrogen atom, alkyl group or the like] is provided. The method for producing an image of the present invention is successful in raising Dmax (maximum density), suppressing increase in fog during a long-term storage, and suppressing dimensional instability of line width affected by the energy of exposure.

Abstract: A photothermographic material comprising, on one surface of a support, at least one kind of photosensitive silver halide, a silver salt of an organic acid, a reducing agent for silver ions, and a binder, wherein (1) said material further comprises two or more kinds of organic polyhalogenated compounds, and (2) a melting point of a mixture which consists of the organic polyhalogenated compounds in the same content ratio as the content ratio of said compounds in the photothermographic material is in the range of from −10° C. to 50° C. relative to a heat development temperature for the photothermographic material. The photothermographic material of the present invention shows high sensitivity and superior storability before heat development, and the material can be used for medical images, photoengraving and the like.

Abstract: In the case where multiple slide hopper is used for simultaneous multilayer bead coating of photosensitive material, streak defect is occasionally cause, particularly in the case of coating photothermographic material, especially when the outermost layer includes materials capable of increasing optical density such as toner it more frequently happens. It is found that streak defect is restrained when meniscus curvature of upper side bead becomes less than 7.2 mm−1. This condition can be kept by selecting a proper value of clearance between the web surface and the lip of the slide hopper, that is from 0.10 mm to 0.40 mm, and a proper value of pressure in a lower side of the bead, that is from −100 Pa to −700 Pa.

Abstract: A method of producing a thermal-developable photosensitive material is provided, which prevents mixing of materials between layers to ensure that the coating surface is in a good condition. In this method, liquids for forming a photosensitive layer, an intermediate layer and a protective layer are simultaneously applied in a multilayer form on a substrate to produce a thermal-developable photosensitive material. A pH of the intermediate layer coating liquid is adjusted within a range from 5 to 10 and a viscosity of the intermediate layer coating liquid is adjusted within a range from 20 to 150 mPa·s. Moreover, a pH buffering salt is added to the intermediate layer coating liquid.

Abstract: Aqueous-based thermally sensitive emulsions and imaging materials include two or more hindered phenol silver ion reducing agents in a non-crystalline reducing agent composition. Such compositions can be provided as evaporated dispersions and can be formulated in aqueous coating compositions to provide thermally developable materials such as thermographic and photothermographic materials.

Abstract: A silver halide photographic lightsensitive material comprises, on a support, at least one lightsensitive silver halide emulsion layer and at least one non-lightsensitive layer.

Abstract: This invention comprises an imaging element comprising an imaging layer having associated therewith a compound of Structure I: In the above Structure I, the substituents are as defined in the application. Such compounds have good reactivity and can by used to block photographically useful compounds such as developing agents until thermally activated under preselected conditions. Compounds according to the present invention are especially useful in color photothermographic imaging elements.

Abstract: The problem of the present invention is to clear the packaging material and the presence/absence detecting method of the residual photothermographic image recording sheet, which are improved so that the concave section or the notched section provided on the bottom plate does not exercise a bad influence, caused by the exhalation of the organic solvent, on the recording sheet stacked on the lowermost position. Packaging material of the recording sheets, having a detecting means of the recording sheet, wherein there is provided the concave section or the notched section on a section where a part of a vacuum head comes into contact with a bottom plate located on a bottom section of the packaging material, and wherein there is arranged a filler formed with a soft material having air permeability and neither absorbs nor transmits organic solvent, in the concave section or the notched section.

Abstract: A silver salt photothermographic dry imaging material comprising a support having thereon a photosensitive layer comprising silver aliphatic carboxylate grains and photosensitive silver halide grains, a reducing agent for silver ions, a binder and a cross-linking agent, wherein the photothermographic material has a silver coverage of 1.0 to 1.7 g/m2; the photosensitive silver halide grains have a mean grain size of 0.03 to 0.055 &mgr;m and a degree of grain size dispersity of not more than 30%; after the dry imaging material has been subjected to photothermographic processing at a temperature of 100 to 200° C. for 5 to 50 seconds, the photosensitive layer exhibits a thermal transition temperature of 46 to 200° C.

Abstract: This invention relates to a multicolor silver halide photographic element comprising a support and at least one high bromide silver halide emulsion layer comprising low fogging tabular silver halide grains, said element further comprising an antifoggant represented by the following Structure I: R1—SO2—C(R2)R3—(CO)m—(L)n—SG  I wherein R1 is an aliphatic or cyclic group, R2 and R3 are independently hydrogen or bromine as long as at least one of them is bromine, L is a divalent linking group, m and n are independently 0 or 1, and SG is a solubilizing group that has a pKa of 8 or less.

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: This invention comprises an imaging element comprising an imaging layer having associated therewith a compound of Structure I: wherein PUG is a photographically useful group; LINK 1 and LINK 2 are linking groups; TIME is a timing group; T represents t independently selected substituted or unsubstituted alkyl or aryl groups, t is 0, 1, or 2 and if t is 2, the T groups can form a ring; HET is a heterocyclic group which optionally can form a ring with a T group; R12 is hydrogen, substituted or unsubstituted alkyl or substituted or unsubstituted aryl, or R12 can form a ring with a T group or with HET; 1 is 0 or 1; m is 0, 1, or 2; and n is 0 or 1.

Abstract: This invention relates to a silver halide photographic element comprising at least one silver halide emulsion layer and further comprising an antifoggant represented by the following Structure I: wherein R1 is an aliphatic or cyclic group, R2 and R3 are independently hydrogen or bromine as long as at least one of them is bromine, L is a divalent linking group, m and n are independently 0 or 1, and SG is a solubilizing group that has a pKa of 8 or less.

Abstract: Disclosed is a photothermographic material containing a non-photosensitive silver salt, a photosensitive silver halide and a binder on a support, which comprises a nucleating agent and a surfactant represented by the following formula (F):