Abstract: Coating compositions, in particular for laser-supported treatment (in particular inscription) of glass surfaces are described, wherein the coating compositions contain at least one silver compound which is soluble in an aqueous and/or organic solvent and contains at least one binder. Methods for producing such coating compositions and methods for coating and treating glass surfaces are also described.

Abstract: An industrial X-ray photosensitive material including at least one silver halide emulsion layer on both sides of a transparent support, wherein the silver halide emulsion layer contains tabular silver halide particles having an average particle thickness of less than 0.2 ?m and an aspect ratio of more than 8, a core of the particles which is a core having a volume of 1% or more and less than 3% of a particle volume does not contain Ir or Rh, and a shell of the particles which is a shell having a volume of 97% or more and less than 99% of a particle volume contains at least Ir or Rh. An industrial X-ray photosensitive material having rapid processing suitability, as well as high sensitivity and high contrast is provided.

Abstract: An image forming method comprising: imagewise exposing and thermal developing a photothermographic material using an image recording apparatus, wherein a part of the sheet is exposed and, in parallel with the exposure, development is started on a part of the sheet having been already exposed: wherein the photothermographic material comprises a reducing agent represented by formula (R), and wherein the photosensitive silver halide contains at least two preformed photosensitive silver halides having respective sensitivities different from each other for a light with the same exposure wavelength and a silver iodide content of the photosensitive silver halide is 40% by mole or more.

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: A silver halide photographic light-sensitive material is disclosed, comprising at least one silver halide emulsion characterized in that 50% or more of the projected area of all silver halide grains comprises tabular silver halide grains satisfying all of the following requirements (i) to (iii) and the coefficient of variation in the thickness of the tabular silver halide grains is less than 40%: (i) to have a grain thickness of less than 0.05 ?m and an equivalent-circle diameter of 0.6 ?m or more; (ii) to be silver iodobromide or silver chloroiodobromide having a silver bromide content of 70 mol % or more; (iii) to be a tabular silver halide grain having two parallel main planes comprising a (111) face.

Abstract: A silver halide photographic emulsion comprising grains, wherein not less than 50% of the number of all the grains are occupied by silver iodebromide or silver bromochloroiodide tabular grains each meeting the requirements (i) to (iii) below: (i) a thickness is less than 0.13 ?m; (ii) an equivalent-circle diameter is not less than 1.0 ?m; and (iii) a silver iodide content in a fringe internal region A between a twin plane and a grain major surface is higher than a silver iodide content in a fringe internal region B between two twin planes.

Abstract: A silver halide color reversal photographic lightsensitive material comprising a support and, superimposed thereon, at least one red-sensitive silver halide emulsion layer, at least one green-sensitive silver halide emulsion layer and at least one blue-sensitive silver halide emulsion layer, the red-sensitive silver halide emulsion layer having a weight-averaged wavelength (?ra) of spectral sensitivity distribution satisfying the relationship: 600 nm<?ra<625 nm, which silver halide color reversal photographic lightsensitive material contains at least one interimage effect intensifying layer substantially not forming any image, the interimage effect intensifying layer containing: (a) at least one kind of lightsensitive silver halide grains in an amount of less than 10% in terms of silver quantity based on all the silver halide grains for image formation; and (b) nonlightsensitive silver halide fine grains.

Abstract: This invention relates to a silver halide photographic emulsion in which a silver emulsion high in silver iodide content of 80% by mol to 100% by mol based on the silver iodide content is chemically sensitized by at least one of methods of chalcogen sensitization and gold sensitization under the conditions that pAg is from 1.5 to 7.0, as well as a thermally developable photosensitive material having at least one image forming layer containing at least a non-photosensitive organic silver salt, a photosensitive silver halide, a reducing agent and a binder on a support, and having at least one non-image recording protection layer to the image forming layer on the side remote from the support, and exposed by a laser beam in which the material contains the silver emulsion high in silver iodide content.

Abstract: A silver halide emulsion is disclosed, comprising silver halide grains which each have a host tabular grain part and a part grown on the outside thereof, wherein in said host tabular grains parts, at least 50% of total projected area of the silver halide grains are accounted for by silver halide tabular grains having {111} main surfaces, and said silver halide grains comprises the main surface of the host tabular grain part subjected to junction with high-iodide epitaxial phases comprising silver halide containing at least 97 mole % of silver iodide and the lateral face of the host tabular grain part comprises silver halide having an iodide content of substantially 5 mole % or below; and a method of preparing a silver halide photographic emulsion is disclosed, comprising silver halide grains which each have a host tabular grain part and a part grown on the outside thereof.

Abstract: The present invention relates to a light-sensitive emulsion, and a light-sensitive photographic material containing the same, comprising silver bromoiodide grains of a core shell structure comprising: a) an inner core consisting essentially of silver bromide or silver bromoiodide and having a silver iodide content within the range of 0 to 10 mole %, and b) a plurality of shells consisting essentially of silver bromide or silver bromoiodide, wherein said silver bromoiodide grains exhibit an average grain size lower than 0.60 micrometer, an average grain thickness lower than 0.15 micrometer, and an average aspect ratio lower than 5:1.

Abstract: A photothermographic material including, at least a photosensitive silver halide, a non-photosensitive organic silver salt, a reducing agent and a binder on at least one side of a support, wherein a content of silver iodide in the photosensitive silver halide is 5% by mole or more, the binder contains polymer latex in an amount of 60% by weight or more, and the reducing agent is a compound represented by the following general formula (R): 1

Abstract: An image forming method for forming an image by exposing a photothermographic material to a laser beam, the laser beam being a laser diode beam having a peak light-emission intensity at a wavelength of 350 nm to 450 nm. The photothermographic material comprises at least a non-photosensitive silver salt, a photosensitive silver halide, a binder and a reducing agent, wherein a silver iodide content of the photosensitive silver halide is 40% by mole or more.

Abstract: A photothermographic material containing a photosensitive silver halide, a non-photosensitive organic silver salt, a reducing agent, and a binder on at least one surface of a support, wherein silver iodide is contained in the photosensitive silver halide in an amount of 40% to 100% by mole, and the reducing agent contains a compound represented by the following formula (R-1).

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 &mgr;m and 0.04 &mgr;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: A photothermographic material containing, on a substrate, at least a photosensitive silver halide, a non-photosensitive organic silver salt, a reducing agent and a binder in which the total silver iodide content of the photosensitive silver halide is 40 mol % or more and 100 mol % or less, and the coating amount of the photosensitive silver halide, in terms of an amount of silver, is 0.0005 g/m2 or more and 0.4 g/m2 or less, as well as an image forming method for the photothermographic material which comprises exposing the photothermographic material by using a semiconductor laser having an emission peak intensity at a wavelength of from 350 nm to 450 nm as a light source.

Abstract: The present invention relates to a photothermographic material, having at least a photosensitive silver halide, a non-photosensitive organic silver salt, a reducing agent and a binder on at least one surface of a support. The photosensitive silver halide contains at least two kinds of photosensitive silver halides having respective sensitivities different from each other for a light with the same exposure wavelength and a silver iodide content of the photosensitive silver halide is 5% by mole or more.

Abstract: A photothermographic material, comprising at least a photosensitive silver halide, a non-photosensitive organic silver salt, a reducing agent and a binder, wherein a total silver iodide content of the photosensitive silver halide is 40% by mole or more and thermal development is started within 60 sec after exposure.

Abstract: The invention provides a photothermographic material including, on a same surface of a substrate, photosensitive silver halide grains, a non-photosensitive organic silver salt, a reducing agent and a binder, in which the photosensitive silver halide grains include iridium and a metal of groups 3 to 10 of the periodic table other than iridium, and 90% or more of the total iridium amount within the grain are contained in a core of 50% or less of the grain.

Abstract: This invention relates to a silver halide photographic emulsion in which a silver emulsion high in silver iodide content of 80% by mol to 100% by mol based on the silver iodide content is chemically sensitized by at least one of methods of chalcogen sensitization and gold sensitization under the conditions that pAg is from 1.5 to 7.0, as well as a thermally developable photosensitive material having at least one image forming layer containing at least a non-photosensitive organic silver salt, a photosensitive silver halide, a reducing agent and a binder on a support, and having at least one non-image recording protection layer to the image forming layer on the side remote from the support, and exposed by a laser beam in which the material contains the silver emulsion high in silver iodide content.

Abstract: A reversal photographic element comprising a support and, coated on said support, at least one image recording emulsion layer comprised of: a) a light sensitive silver halide imaging emulsion; and b) a non-image forming silver halide emulsion having an average grain size less than 0.3 &mgr;m and which comprises at least 13 percent of the total silver in the image recording layer, wherein the non-image forming silver halide emulsion comprises at least 1 mole percent iodide, and the iodide mole percentage of the non-image forming silver halide emulsion is equal to or higher than that of the imaging emulsion. The combination of the imaging emulsion and a higher iodide concentration non-imaging emulsion in an imaging layer gives an increase in interlayer interimage effects, increasing the color of the film.

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 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 object of the present invention is to provide a photothermographic material improved in the aging stability of unprocessed photosensitive material and/or in the image stability after the processing, which is a photothermographic material of the invention comprising a support and on the same surface of the support, a photosensitive silver halide, a non-photosensitive organic silver salt, a reducing agent and a binder, wherein the concentration of chloride contained on the same surface is 1,000 ppm or less based on the organic silver salt.

Abstract: Disclosed are photothermographic materials having, on a support, a layer that contains at least a photosensitive silver halide, a non-photosensitive organic silver salt, a reducing agent and a binder, in which the mean silver iodide content of the photosensitive silver halide falls between 5 and 100 mol %, preferably between 40 and 100 mol %.

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: A photographic element which comprises a support bearing: (i) a first radiation-sensitive silver halide emulsion image-forming layer comprising a high bromide tabular grain emulsion including tabular grains having {111} major faces, exhibiting an average thickness of at least 0.07 &mgr;m and an average aspect ratio of at least 2; and (ii) a second radiation-sensitive silver halide emulsion image-forming layer comprising an ultrathin tabular grain emulsion including tabular grains having {111} major faces, containing greater than 70 mole percent bromide and at least 0.25 mole percent iodide, exhibiting an average thickness of less than 0.07 &mgr;m and an average equivalent circular diameter of at least 0.

Abstract: The present invention provides a spectrally sensitized photothermographic silver halide element support having a first surface and a second surface, a photothermographic composition that is to be exposed to a laser being disposed on the first surface of the support. The element has at least one back layer disposed on the second surface of the support. The photothermographic composition comprises silver halide emulsion grains having a number average grain size of less than 0.1 &mgr;m and that are spectrally sensitized with a sensitizing dye having a spectral sensitivity that corresponds to the spectral properties of the laser. The photothermographic composition further comprises an organic silver salt, a reducing agent for silver ions, and at least one dye. In addition, the photothermographic composition has a transmission optical density greater than 0.1 at the exposure wavelength, and the back layer has a transmission optical density greater than 0.1 at the exposure wavelength.

Abstract: A heat-developable photosensitive material includes at least a photosensitive silver halide particle, a nonphotonsensitive organic silver salt, a developing accelerator, a reducing agent and a binder on a support, wherein the photosensitive silver halide includes silver iodide at 5 mol % to 100 mol % and the average particle size of the photosensitive silver halide is 5 nm to 80 nm. A heat developing method for the heat-developable photosensitive material is also disclosed.

Abstract: A silver halide photographic emulsion comprising grains, wherein 50% or more (numerical ratio) of all the grains are occupied by tabular grains meeting the requirements (i) to (iii): (i) a silver iodobromide or silver iodochlorobromide tabular grain having (111) faces as main planes and having two parallel twin planes; (ii) a thickness of 0.12 &mgr;m or less; and (iii) the tabular grains have a grain fringe portion meeting the requirements: (a) the grain fringe portion has a phase of high silver iodide content in either of an upper region and a lower region than a region sandwiched between the two twin planes, and (b) “A”, which represents the maximum local silver iodide content (mol %) in the phase of high silver iodide content, satisfies the relationship: A−6.0≧B, wherein “B” represents local silver iodide content (mol %) in an opposite part to the phase of high silver iodide content.

Abstract: A photographic element which comprises a support bearing: (i) a first radiation-sensitive silver halide emulsion image-forming layer comprising a high bromide tabular grain emulsion including tabular grains having {111} major faces, exhibiting an average thickness of at least 0.07 &mgr;m and an average aspect ratio of at least 2; and (ii) a second radiation-sensitive silver halide emulsion image-forming layer comprising an ultrathin tabular grain emulsion including tabular grains having {111} major faces, containing greater than 70 mole percent bromide and at least 0.25 mole percent iodide, exhibiting an average thickness of less than 0.07 &mgr;m and an average equivalent circular diameter of at least 0.

Abstract: The heat-developable photosensitive material of the present invention comprises a support, a photosensitive silver halide, a non-photosensitive organic silver salt, a heat developer and a binder, wherein the photosensitive silver halide is a specific photosensitive silver halide.

Abstract: A photothermographic element has on a support a photosensitive layer containing an emulsion of silver halide fine grains having a mean equivalent spherical diameter of 10-50 nm. (1) The silver halide emulsion has been formed independent of an organic fatty acid silver salt rather than by partial halogen conversion of a non-photosensitive organic silver salt, and mixed with the organic silver salt before coating. (2) A reducing agent for silver ion is contained. (3) The silver halide fine grains have been chemically sensitized in the presence of a spectral sensitizing dye. The element is improved in sensitivity and restrained from fog increase during storage in daylight after processing.

Abstract: A photothermographic material comprising, on one side of a support, at least one kind of photosensitive silver halide, a light insensitive silver salt of an organic acid, a reducing agent for silver ions and a binder, wherein the photosensitive silver halide has a mean grain size of 0.001 &mgr;m to 0.06 &mgr;m and the material comprises at least two kinds of organic polyhalogenated compounds at least one of which is an organic polyhalogenated compound represented by the following formula (1): wherein Z1 and Z2 independently represent a halogen atom, X1 represents a hydrogen atom or an electron withdrawing group, Y1 represents —CO— group or —SO2— group, Q represents an arylene group or a divalent heterocyclic group, L represents a bridging group, W1 and W2 independently represent a hydrogen atom, an alkyl group, an aryl group or a heterocyclic group, and n represents 0 or 1.

Abstract: In a method of preparing a silver halide photographic emulsion by performing spectral sensitization by adding a cyanine dye during or before chemical sensitization, a substantially insoluble silver iodobromide fine-grain emulsion is added during or after chemical sensitization of the silver halide photographic emulsion.

Abstract: An infrared sensitized photothermographic silver halide element comprising a support layer having on at least one surface thereof a photothermographic composition comprising a binder, a light insensitive silver source, a reducing agent for silver ion and infrared radiation sensitive preformed silver halide grains having number average particle size of <0.10 micron with at least 80% of all grains with ±0.05 microns of the average, in combination with an antihalation layer having an absorbance ratio of IR absorbance (before exposure)/visible absorbance (after processing) >30, and an IR absorbance of at least 0.3 within the range of 750-1400 and an optical density of less than 0.03 in the visible region.

Abstract: A photographic material comprising a Lippmann emulsion coated on a polycarbonate support is disclosed. The product is suited for new industrial applications under severe conditions of temperature and humidity.

Abstract: Photographic elements capable of forming a reversal image are disclosed comprising a support and, coated on said support, at least one image recording emulsion layer comprised of a dispensing medium and radiation sensitive silver halide grains and at least one substantially non-image forming layer. In one embodiment, the substantially non-image forming layer comprises: a) a light sensitive silver halide imaging emulsion which is less than 10 percent of the mass of the total imaging emulsion in the element; b) a first non-image forming silver salt emulsion having an average grain size less than 0.15 .mu.m; and c) a second non-image forming silver salt emulsion comprising iodide having an average grain size greater than that of the first non-image forming emulsion.

Abstract: The present invention is a method for stabilizing a photographic coating melt. The photographic melt includes an aqueous medium and a dispersed liquid organic phase containing an ultraviolet ray absorbing compound, and an emulsion containing silver halide particles having an average equivalent circular diameter of from 0.03 to 0.10 microns. The photographically useful ultraviolet ray absorber compound is soluble in a liquid organic phase and substantially insoluble in water. The method includes the step of adding to the emulsion containing silver halide particles a sufficient amount of surfactant to passify surfaces of the silver halide particles. The present invention is also a method of preparing a photographic coating melt. A dispersion is prepared which includes an aqueous medium, a dispersed liquid organic phase and an ultraviolet ray absorber compound wherein the ultraviolet ray absorber compound is soluble in the dispersed liquid organic phase and substantially insoluble in water.

Abstract: A photothermographic element has on a support, a photosensitive layer containing a non-photosensitive organic silver salt, a reducing agent, and photosensitive silver halide grains. Sharpness is improved when the volume of the photosensitive layer divided by the number of photosensitive silver halide grains in the photosensitive layer is in the range of 0.005-0.1 .mu.m.sup.3.

Abstract: An infrared sensitized photothermographic silver halide element comprising a support layer having on at least one surface thereof a photothermographic composition comprising a binder, a light insensitive silver source, a reducing agent for silver ion and infrared radiation sensitive preformed silver halide grains having number average particle size of <0.10 micron with at least 80% of all grains with .+-.0.05 microns of the average, in combination with an antihalation layer having an absorbance ratio of IR absorbance (before exposure)/visible absorbance (after processing) >30, and an IR absorbance of at least 0.3 within the range of 750-1400 and an optical density of less than 0.03 in the visible region.

Abstract: A photothermographic material comprising a photosensitive silver halide emulsion layer on one surface of a support is to be exposed to laser light having a wavelength of less than 700 nm. The silver halide of the emulsion layer has a grain size of 0.01-0.1 .mu.m. A suitable dye is contained in the emulsion layer such that the layer may have an absorbance of 0.3-1.2 at the exposure wavelength. An image containing minimized interference fringes is obtainable.

Abstract: A process of preparing a radiation-sensitive silver halide emulsion is disclosed in which the silver halide grains form dispersed clumps. A population of fine silver halide grains is precipitated at higher concentrations than previously taught for preparing this type of an emulsion by employing a peptizer limited in amount, limited in methionine content, or both. Following formation of the grains, they are aggregated into clumps by the addition of a surfactant, optionally assisted by the adding iodide, increasing pH or both. The grain clumps are stabilized against further aggregation by adding a high methionine peptizer and optionally assisted by the precipitation of additional silver halide.

Abstract: The application of Lippmann photographs as a unique security device on security documents, such as, e.g. identity cards, passports, credit cards is presented. The recording of such photographs requires a special type of photosensitive film layer in contact with a reflecting layer. Panchromatic photopolymer materials can be used and, after being recorded and processed, laminated to security documents. Lippmann photographs are almost impossible to copy and, certainly, cannot be copied by conventional photography or color copying machines.

Abstract: The present invention relates to a method for manufacturing a silver halide photographic emulsion comprising a nucleation step, a growing step and a washing step, wherein a reduction sensitization is performed between said growing step and said washing step in the presence of a sulfuring agent and a stabilizer. According to a preferred embodiment a fine grain silver halide emulsion is added either between the addition of stabilizer and the addition of sulfuring agent or between the addition of sulfuring agent and the start of reduction sensitization or both.

Abstract: A silver iodide fine grain emulsion comprising a dispersion medium and fine grains of silver iodide has an average grain size of 0.02 to 0.07 .mu.m, contains 0.6 mol or more of silver iodide per liter thereof in a dissolved state at 40.degree. C., and has an electric conductivity of 4,500 to 15,000 .mu.S/cm in a dissolved state at 40.degree. C. A lightsensitive silver halide emulsion produced by using the above silver iodide fine grain emulsion is also disclosed. A silver halide photographic lightsensitive material comprising a support and, superimposed thereon, at least one lightsensitive silver halide emulsion layer in which the above lightsensitive silver halide emulsion is contained, is also disclosed.

Abstract: Silver halide photographic elements which are capable of producing reversal images are disclosed including a substantially non-image forming overcoat or intercoat layer comprising an image forming emulsion and a non-image forming emulsion. The combination of imaging emulsion and nonimaging emulsion in a substantially non-image forming overcoat or intercoat layer results in an increase in interlayer interimage effects.

Abstract: This invention contemplates a multilayer, multicolor photographic element comprising a support, a plurality of dye-forming hydrophilic colloid containing silver halide emulsion layers which are spectrally sensitized to different regions of the visible spectrum including at least one blue-sensitive emulsion layer, a green-sensitive emulsion layer, and a red-sensitive emulsion layer. Each of the silver halide emulsion layers includes imaging silver having at least 25 weight percent ultrathin tabular grains having a thickness of less than 0.07 microns. One of the silver halide emulsion layers is a topmost silver halide emulsion layer having a water swell percentage which is greater than any other light-sensitive emulsion layer.

Abstract: The invention relates to a process for obtaining a photochromic compound based on a transparent polymer matrix, in which:a) a silver sol is prepared comprising at least one essentially transparent polymer matrix and particles of silver of a mean size smaller than 500 nm,b) an emulsion is produced by mixing the said silver sol with an oxidizing agent in the presence of at least one halogen and/or pseudohalogen.The invention also relates to the compound obtained and, lastly, a transparent substrate coated with at least one layer consisting essentially of such a compound.

Abstract: Described is a heat developable color light-sensitive material comprising a support having provided thereon at least two layers having a spectral sensitivity peak in a different wavelength range of 700 nm or more, in which the at least two layers are each combined with a compound which provides a dye having a different hue, wherein the layer having a spectral sensitivity peak in the longest wavelength and/or a light-insensitive interlayer adjusted thereto comprises (a) a high silver chloride emulsion of fine grains having a silver chloride content of 80 mol % or more and an average size of 0.15 .mu.m or less or (b) an easily soluble silver salt compound.

Abstract: A method for producing a silver halide emulsion containing silver halide grains having a mean grain size of 0.15 .mu.m or less, wherein at least a part or the whole of a silver halide grain formation process is performed in the presence of an imidazole compound.