Abstract: A light-sensitive material comprises a support and a light-sensitive layer provided thereon. The light-sensitive layer contains silver halide, a reducing agent and an ethylenically unsaturated polymerizable compound. According to the present invention, the light-sensitive layer further contains a chromium (VI) compound, a molybdenum (VI) compound or a tungsten (VI) compound.

Abstract: A method for image formation comprising the steps of exposing a light-receiving sheet coated with a layer of microcapsules containing photopolymerization agent and colorless dye selectively to light so as to form a cured image thereon opposite in sense to the desired final image, laying an image-receiving sheet uniformly coated with a layer of a developing material for reacting with and coloring the colorless dye on the light-receiving sheet, heating the resulting sandwich configuration and pressing these sheets against each other thereby rupturing the uncured microcapsules to form a colored image.

Abstract: Negative-acting photohardenable compositions are useful in flexographic printing plate manufacture without the use of solvent development. Unhardened composition is softened and absorbed by an absorbent sheet. Absorbed composition can be removed from the sheet and recycled.

Abstract: The present invention is directed to an imaging system wherein the developed image and non-image areas are transferred to a receptor element by a transfer coating layer. The transfer layer of the present invention is coated on the support of the imaging sheet and/or developer sheet and comprises a material capable of holding developed images and non-image areas that can be transferred to a receptor surface upon the application of heat to the rear surface of the support. The transfer coating layer is capable of liquefying when heated and resolidifying when heat is removed.

Abstract: This invention relates to a negative-working, peel developable, single sheet color proofing method which can accurately reproduce images, using photosensitized, color constructions. The final construction is useful in predicting the image quality from a lithographic printing process.

Abstract: A method of forming an image is disclosed comprising irradiating a heat-sensitive recording material with a laser beam, wherein the heat-sensitive recording material includes a support having provided thereon a light-absorbing layer containing microcapsules which encapsulate a core substance containing carbon black and a binder, and tranferring a latent image thus formed on the light-absorbing layer, in accordance with the pattern and amount of the laser beam irradiation, to an image-receiving film under pressure to thereby obtain a visible image on the image-receiving film.

Abstract: A transfer recording medium is disclosed, comprising a light transmitting support having provided thereon a heat transfer solid ink layer via an interlayer having a photolyzable compound. The recording medium provides a clear and high-quality color image on an image-receiving sheet at high speed and low cost irrespective of surface smoothness of the image-receiving sheet.

Abstract: A photosensitive material comprises a photosensitive and heat-developable element and a photopolymerizable element which are contained in the same layer. The photopolymerizable element comprises at least a polymerizable polymer precursor having a melting point of 35.degree. C. or more. The photosensitive material is exposed to light with at least one wavelength within the wavelength region of from 400 nm to 900 nm, heated at 60.degree. to 180.degree. C., and exposed to light with at least one wavelength within the wavelength region of from 250 to 700 nm, and thus an unexposed area in the photosensitive layer which is an area not exposed to light with at least one wavelength within the wavelength region of from 400 nm to 900 nm is polymerized.

Abstract: A method of forming an image which comprises subjecting an image-forming material comprised of a substrate and a photosensitive layer containing a dye and/or a pigment and a photopolymerizable compound and disposed on the substrate to an image-exposure, thereby to allow the exposure to cause a difference of adhesion between an exposed portion and non-exposed portion in the photosensitive layer, and transferring the image to an image receptor on the basis of the difference of adhesion; wherein the photosensitive layer of the exposed image-forming material and the image receptor are allowed to face each other and directed into the nip between two rollers consisting of an elastic roller and a metallic roller having a surface temperature of between 50.degree. C. and 150.degree. C.

Abstract: Disclosed are an image-receiving material comprising a support and an image-receiving layer provided thereon which contains a developer and a binder polymer mixture composed of at least two kinds of water-soluble polymers which undergo phase separation in the mixed state. This image-receiving material is advantageously employed in an image-forming method which comprises the steps of imagewise exposing to light a light-sensitive material comprising a support and a light-sensitive layer containing silver halide, a reducing agent, and an ethylenically unsaturated polymerizable compound; simultaneously or thereafter developing the light-sensitive material; and pressing the light-sensitive material on the image-receiving material to transfer the unpolymerized polymerizable compound to the image-receiving layer.

Abstract: This invention relates to positive working photopolymerizable sheet constructions which, upon exposure to an actinic radiation source through a screened image, can accurately reproduce said image. The construction is useful as a color proofing film which can be employed to accurately predict the image quality from a lithographic printing process.

Abstract: This invention relates to a single positive or negative working photosensitive layer on a substrate which, upon exposure to an actinic radiation source through a screened image, can accurately reproduce said image after processing and lamination. The construction is useful as a color proofing film which can be employed to predict the image quality from a lithographic printing process.

Abstract: An image-forming method comprises the steps of image-wise exposing to light a light-sensitive material comprising a support and a light-sensitive layer provided thereon which contains silver halide, a reducing agent and an ethylenically unsaturated polymerizable compound, at least the silver halide and the polymerizable compound being contained in a microcapsule; simultaneously or thereafter heat-developing the light sensitive material; and pressing the light-sensitive material on an image-receiving material comprising a support and a porous image-receiving layer which contains a fluorine compound to transfer the unpolymerized polymerizable compound to the image-receiving material.

Abstract: Printing plates having a photosensitive layer coated on a support wherein said photosensitive layer contains a powdered solid adhered to the surface of said plate by means of powdering followed by the application of heat or solvent before exposure. Said powders are capable of being removed from said surface during the developing process.

Abstract: This invention relates to a peel-apart photosensitive element comprising a strippable coversheet, a photorelease layer, a photohardenable layer, an elastomeric layer, and a support, which is useful in a variety of image reproduction processes.

Abstract: A recording medium enabling formation of an image on any desired material is disclosed. The recording medium comprises a base sheet, a thermoplastic resin layer formed on at least one side of the base sheet, and a color developer layer formed on the thermoplastic resin layer and capable of color development by reaction with a dye precursor.

Abstract: A transfer recording medium comprising a transfer recording layer is provided. The transfer recording layer causes an irreversible change in transfer characteristic when provided with plural kinds of energies such as heat, light and pressure energies. Such plural energies are applied to the transfer recording layer with at least one energy applied imagewise to provided a transferable portion or latent image portion in the transfer recording layer. The transferable portion is then transferred to a medium such as plain paper. The provision of plural kinds of energies aids in realization of high quality multi-color transfer image in a compact apparatus through functional separation of image formation and transfer operations. Further, even a multi-color image can be obtained through a single transfer step.

Abstract: A photosensitive material and comprises a photosensitive and heat-developable element and a polymer, and is capable of being endowed with stickness by a change of pH value or being subjected to exposure and heating. An image formation process comprises the steps of subjecting to imagewise exposure the photosensitive material, heating the photosensitive material, electrifying the photosensitive material, and transferring the iamgewise exposed or unexposed portion of the photosensitive material. The photosensitive and heat-developable element comprises a least a photosensitive silver salt and a reducing agent and the polymer has a cross-linked structure.

Abstract: A photosensitive material comprises a photosensitive layer and a polymerizable layer which are laminated. An area of the polymerizable layer, corresponding to an unexposed area of the photosensitive layer, is polymerized when the photosensitive material is exposed to light with a wavelength of 400 to 900 nm and heated to 60.degree. to 80.degree. C.

Abstract: A light-sensitive material comprising a light-sensitive layer provided on a support wherein the light-sensitive layer contains silver halide, a reducing agent, a polymerizable compound, and a thiol derivative having the formula (I):R--SM (I)in which R is a monovalent group selected from the group consisting of an alkyl group, a cycloalkyl group, an aralkyl group, an alkenyl group and an aryl group, each of which may have one or more substituent groups; and M is a monovalent group selected from the group consisting of hydrogen, silver, an alkali metal and ammonium. Image-forming methods utilizing the light-sensitive materials are also disclosed.

Abstract: A photo and heat sensitive recording medium has a front side coated with a layer of photo-curable composition which has photo-curability and heat fusibility in an uncured state. In an image recording method, the recording medium is exposed to light on the basis of image information, to photo-cure light-illuminated areas of the layer of photo-curable composition. Subsequently, the recording medium is superimposed upon a side of a subject being transferred. The superimposed recording medium and subject are heated to transfer an image corresponding to uncured areas on the recording medium, onto the side of the subject.

Abstract: There is disclosed an image forming method which comprises forming an image portion by exposing and developing an image forming material having a light-sensitive composition, and transferring only the image portion onto an image receiving material with the non-image portion of the image receiving material being exposed, wherein the light-sensitive composition contains:(1) at least one selected from:(a) o-quinonediazide compounds; and(b) compositions containing both of a photoacid generating agent and a compound having at least one bond decomposable with the acid; and(2) a polymeric compound having a structure unit represented by the following formula in the molecular structure:CH.sub.2 --CH(OCOR)--wherein R represents an alkyl group having 1 to 17 carbon atoms.

Abstract: An image-forming method employs a light-sensitive material comprising a support and a light-sensitive layer provided thereon which contains a silver halide, a reducing agent, an ethylenically unsaturated polymerizable compound and a specific development inhibitor precursor. The image-forming method comprises heat-developing the light-sensitive material after or simultaneously with imagewise exposure of the material so as to imagewise polymerize the polymerizable compound in the presence of a development inhibitor released from the precursor in the course of the heat development. The image-forming method may be also performed under such condition that a liquid such as water is contained in the light-sensitive layer of the light-sensitive material within the specific amount.

Abstract: An image-forming method which comprises:imagewise exposing a light-sensitive material comprising a light-sensitive layer which contains silver halide, a reducing agent and a polymerizable compound provided on a support to form a latent image of the silver halide;simultaneously or thereafter developing the light-sensitive material to polymerize the polymerizable compound within the area where the latent image of the silver halide has been formed; andpressing the light-sensitive material on an image-receiving material having a porous support which has such a surface characteristic that a filtered maximum waviness of not less than 4 .mu.m is observed in not more than 10 positions among 100 positions which are determined at random on a filtered waviness curve, to transfer the unpolymerized polymerizable compound to the image-receiving material.The filtered maximum waviness is determined within basic length of 2.

Abstract: An image-forming method comprises: imagewise exposing to light a light-sensitive material comprising a support and a light-sensitive layer which contains silver halide, a reducing agent and an ethylenic unsaturated polymerizable compound; and simultaneously or thereafter developing the light-sensitive material to imagewise polymerize the polymerizable compound. The light-sensitive material is developed by heating the light-sensitive material at a temperature of not lower than 50.degree. C. under such a condition that the light-sensitive layer contains a liquid in an amount of 10 to 400 wt. % based on the amount of the polymerizable compound.

Abstract: This invention relates to positive working color proofing sheet construction which, upon exposure to an actinic radiation source through a screened image, can accuratley reprouce said image. The construction is useful as a color proofing film which can be employed to accurately predict the image quality from a lithographic printing process. The image is produced by forming a composite of a receiver base, diazo or diazide layer, photopolymerizable layer and cover sheet. Upon imagewise exposure, a positive image appears on the receiver base after dry peel apart development.

Abstract: A light-sensitive image forming method using a recording element which comprises a recording layer on a support is disclosed. The recording layer contains at least two active components of a photopolymerizable composition such as a polymerizable compound and a polymerization initiator, both of which are essential for a photopolymerization reaction. The components are separated from each other by the shell of microcapsules in such manner that at least one component is contained in the microcapsules which are dispersed in the recording layer and the other component is arranged outside of the microcapsule. The image forming method comprises the steps of: heating the recording element to form the photopolymerizable composition in the recording layer; and imagewise exposing to light the recording element to imagewise polymerize the photopolymerizable composition.

Abstract: A light-sensitive material comprising a light-sensitive layer containing silver halide, a reducing agent, a polymerizable compound and a leuco dye provided on a support, characterized in that the leuco dye has the following formula (I): ##STR1## in which each of R.sup.1 and R.sup.2 independently is hydrogen, an alkyl group, a cycloalkyl group, an aralkyl group or an aryl group, or R.sup.1 and R.sup.2 together with the neighboring nitrogen atom form a 5- or 6-membered ring; X is hydrogen, a halogen atom, an alkyl group, an alkoxy group, --NHCOR.sup.3 or --OCOR.sup.4 (each of R.sup.3 and R.sup.4 is an alkyl group or an aryl group) or --NR.sup.5 R.sup.6 (R.sup.5 and R.sup.6 have the same meanings as for R.sup.1 and R.sup.2); Y is an alkyl group or an aralkyl group; Z is hydrogen, an alkyl group or an aryl group; and each of R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, R.sup.6, X, Y, Z and the benzene ring A may have one or more substituent groups.

Abstract: An image-receiving material comprises a support and an image-receiving layer characterized in that the image-receiving layer contains a hardening agent being capable of polymerizing a polymerizable compound without necessity of external energy. The hardening agent is ethylenediamine, propylenediamine, 1,3-diamino-2-hydroxypropane, 1,3-trimethylenediamine, N,N'-dimethylethylenediamine, 1,4-diaminobutane, hexamethylenediamine, diethylenetriamine, triethylenetetraamine, ##STR1## polyethleneimine, polyallylamine, poly-L-lysine, poly-L-ornithine, NaO.sub.2 S--CH.sub.2 CH.dbd.CHCH.sub.2 SO.sub.2 Na or an alkali metal salt of polyvinylbenzenesulfinic acid.

Abstract: A light-sensitive material comprising a light-sensitive layer provided on a support wherein the light-sensitive layer contains silver halide, a reducing agent, a polymerizable compound, and an additive compound selected from the group consisting of a 5- or 6-membered nitrogen containing heterocyclic compound, thiourea, a thiourea derivative, a thioether compound, polyethylene glycol and a polyethylene glycol derivative. Thermal image-forming methods utilizing the light-sensitive materials are also disclosed.

Abstract: This invention relates to a method for making a dry transfer, photopolymerizable positive-working imaging system which provides a photopolymerizable layer on a support and a colored layer on a substrate. Upon imagewise exposure of the photopolymerizable layer, subsequent lamination of the colored layer to the photopolymerized layer and peel apart, a colored image is produced due to the preferred adhesion of the colored layer to the nonexposed areas of the photopolymerized layer.

Abstract: An image-forming method comprises:imagewise exposing to light a light-sensitive material which comprises a light-sensitive layer provided on a support, the light-sensitive layer containing microcapsules which contain silver halide, a reducing agent and a polymerizable compound and polymer particles having a mean particle size in the range of 5 to 50 .mu.m and a softening point in the range of 80.degree. to 180.degree. C., to form a latent image of the silver halide in the light-sensitive layer;simultaneously or thereafter developing the light-sensitive material to imagewise polymerize the polymerizable compound in the light-sensitive layer; andpressing with heating the light-sensitive material on an image-receiving material comprising an image-receiving layer on a support under the condition that the light-sensitive layer of the light-sensitive material faces the image-receiving layer of the image-receiving material, to transfer the unpolymerized polymerizable compound to the image-receiving material.

Abstract: A light-sensitive material comprising a light-sensitive layer containing silver halide, a reducing agent, a polymerizable compound and a color image forming substance provided on a support, characterized in that the color image forming substance is a triazene compound having the following formula: ##STR1## in which Ar is an aryl group or a heterocyclic group, each of which may have one or more substituent groups; each of R.sup.1 and R.sup.2 independently is a group selected from the group consisting of hydrogen, an alkyl group, a cycloalkyl group, an aralkyl group, an alkenyl group, an aryl group and a heterocyclic group, each of which may have one or more substituent groups, or R.sup.1 and R.sup.2 form, together with the neighboring nitrogen, a heterocyclic group which may have one or more substituent groups; and n is 1, 2 or 3. An image forming method utilizing the light-sensitive material is also disclosed.

Abstract: A light-sensitive material comprises a light-sensitive layer which contains silver halide, a reducing agent and an ethylenic unsaturated polymerizable compound provided on a support (the silver halide and polymerizable compound are contained in microcapsules which are dispersed in the light-sensitive layer), characterized in that the microcapsules have an average particle size (volume average particle diameter) of 8.5 to 20 .mu.m and the following specific particle size distribution. The amount of the microcapsules having a particle size of not larger than one-sixth part of the average particle size is not more than 1 volume % of the total amount of the microcapsules and the amount of the microcapsules having a particle size of not smaller than twice as large as the average particle size is not more than 1 volume % of the total amount of the microcapsules.

Abstract: A light-sensitive material and an image recording method using the same are disclosed. The material comprises a support having provided thereon a light sensitive layer containing at least a light-sensitive silver halide, a reducing agent, a polymerizable compound, and a color image forming substance, wherein at least the polymerizable compound and the color image forming substance are encapsulated in the same microcapsules. The material exhibits high sensitivity and excellent stability with time.

Abstract: This invention relates to positive-working, photopolymerizable containing sheet constructions which, upon exposure to an actinic radiation source through a screened image, can accurately reproduce said image on conventional paper with an adhesive layer pretreatment. The construction is useful as a peel apart color proofing film which can be employed to accurately predict the image quality from a lithographic printing process.

Abstract: This invention relates to positive working photopolymerizable sheet constructions which, upon exposure to an actinic radiation source through a screened image, can accurately reproduce said image. The construction is useful as a color proofing film which can be employed to accurately predict the image quality from a lithographic printing process.

Abstract: An image-forming method which comprises: imagewise exposing a light-sensitive material comprising a light-sensitive layer which contains silver halide, a reducing agent and a polymerizable compound provided on a support to form a latent image of the silver halide; simultaneously or thereafter developing the light-sensitive material to polymerize the polymerizable compound within the area where the latent image of the silver halide has been formed; and pressing the light-sensitive material on an image-receiving material having a transparent support to transfer the obtained image to the image-receiving material.

Abstract: An image-receiving material comprises a support and an image-receiving layer characterized in that the image-receiving layer contains a hardening agent being capable of polymerizing a polymerizable compound without necessity of external energy. An image-forming method employing the image-receiving material is also disclosed. The image-forming method comprises: imagewise exposing to light a light-sensitive material comprising a support and a light-sensitive layer containing silver halide, a reducing agent and a polymerizable compound; simultaneously or thereafter developing the light-sensitive material; and pressing the light-sensitive material on the image-receiving material to transfer the unpolymerized polymerizable compound to the image-receiving layer.

Abstract: A light-sensitive material comprising a light-sensitive layer which contains silver halide, a reducing agent and a polymerizable compound provided on a porous support wherein the porous support has such a surface characteristic that a filtered maximum waviness of not less than 4 .mu.m is observed in not more than 20 positions among 100 positions which are determined at random on a filtered waviness curve. The filtered maximum waviness is determined within basic length of 2.5 mm extracted from the filtered waviness curve which is obtained from the profile of the porous support under the condition of the cut-off value of 0.8 mm according to JIS-B-0610.

Abstract: A light-sensitive material comprising a light-sensitive layer containing silver halide, a reducing agent and a polymerizable compound provided on a support, characterized in that the light-sensitive layer contains a salt of a quaternary ammonium ion with such an anion as a halogen ion, acetate ion, perchlorate ion, a sulfonate ion, oxalate ion, carbonate ion, sulfite ion and phosphoric hydrogen ion.

Abstract: An image-forming method comprises:imagewise exposing a light-sensitive material comprises a light-sensitive layer containing silver halide, a reducing agent and a polymerizable compound provided on a support to form a latent image of the silver halide;simultaneously or thereafter developing the light-sensitive material to imagewise polymerize the polymerizable compound; andpressing the light-sensitive material on an image-receiving material comprising an image-receiving layer provided on a paper support to transfer the unpolymerized polymerizable compound to the image-receiving material.

Abstract: A light-sensitive material comprising a light-sensitive layer containing silver halide, a reducing agent and a polymerizable compound provided on a paper support. The paper support has a low shrinkage ratio of not more than 0.15% both in the machine direction and in the cross direction. The shrinkage ratio is a value measured at the change of relative humidity from 75% to 60%.

Abstract: A light-sensitive material comprising a light-sensitive layer which contains silver halide, a reducing agent and a polymerizable compound provided on a support, characterized in that the light-sensitive layer has a pH value of not higher than 7.

Abstract: In a transfer-type photo-sensitive sheet including; a photo-sensitive sheet coated with plurality microcapsules, each microcapsule encapsulating chromogenic material and photo-sensitive resin, and a transfer sheet coated with developing agent which causes development reaction in contact with chromogenic material effused from the microcapsules on the photo-sensitive sheet under pressure, wherein the photo-sensitive sheet is larger than the transfer sheet in size, an improvement characterized by that the microcapsules are only coated on equal to or less than the area, superimposed on the transfer sheet, of the photo-sensitive sheet.

Abstract: An image-forming method which comprises:imagewise exposing a light-sensitive material comprising a light-sensitive layer provided on a support wherein the light-sensitive layer contains silver halide, a reducing agent and a mixture of at least two polymerizable compounds to form a latent image of the silver halide;simultaneously or thereafter developing the light-sensitive material to polymerize the mixture of the polymerizable compounds within the area where the latent image of the silver halide has been formed; andpressing the light-sensitive material on an image-receiving material to transfer the unpolymerized mixture of the polymerizable compounds to the image-receiving material.

Abstract: An image-forming method which comprises:imagewise exposing a light-sensitive material comprising a light-sensitive layer containing silver halide, a reducing agent and a polymerizable compound having a viscosity of not lower than 100 cP at 25.degree. C. provided on a support, to form a latent image of the silver halide;simultaneously or thereafter developing the light-sensitive material to polymerize the polymerizable compound within the area where the latent image of the silver halide has been formed; andpressing the light-sensitive material on an image-receiving material at a pressure of not lower than 100 kg/cm.sup.2 to transfer the unpolymerized polymerizable compound to the image-receiving material.

Abstract: An osmoprotectant particle for use in enhancing fungus growth and particularly for use with edible mushrooms. The osmoprotectant particle includes a carrier particle, either a protein or a neutral material and a plurality of osmoprotectant microdroplets containing water soluble phosphoglyceride such as hydroxy lecithin and betaine or choline which are attached to a plurality of recesses formed about the carrier particle. Denaturation of the protein and/or control of a surface-to-volume ratio restricts access to the microdroplets such that only mushroom mycelia occuring in the later flushes will be able to utilize the phospholipid droplets. A method is provided for producing the osmoprotectant particles utilizing either the protein carrier particle or the neutral carrier particle.

Abstract: A light-sensitive material comprising a light-sensitive layer containing silver halide, a reducing agent and a polymerizable compound provided on a paper support. A surface of the paper support on which the light-sensitive layer is provided has such a smooth surface that the smoothness value in terms of the Bekk Smoothness is not less than 300 seconds. The Bekk Smoothness is a value measured using the Bekk Tester.

Abstract: A colored image recording material comprising a support and hot-melt inks each comprising at least one coloring material, a photosetting resin and a polmerization initiator and applied on one side of the support can provide colored images excellent in resolving power and image storing properties by an image forming method.