Abstract: A radiation thermally imageable, solid toner addressable article comprises a substrate having on at least one surface thereof a layer comprising a) a solid binder which can be converted to a supercooled liquid upon heating and subsequent cooling to room temperature, b) a dye which absorbs radiation (at the wavelength of the imaging device,, e.e., ultraviolet, visible [especially the red], and infrared wavelengths) and converts infrared radiation to thermal energy, and c) a fluorinated surfactant. A directly thermally addressable article does not require the radiation absorbable dye.

Abstract: An image formation process uses two light-sensitive elements comprising first and second adhesive light-sensitive layers which become nonadhesive upon exposure to light, respectively, and first and second toner elements comprising toner layers (a') and (b') of hues (a) and (b), respectively.

Abstract: An image formation process uses two light-sensitive elements comprising first and second adhesive light-sensitive layers which become nonadhesive upon exposure to light, respectively, and first and second toner elements comprising toner layers (a') and (b') of hues (a) and (b), respectively.

Abstract: A process for preparing images on tonable, light-sensitive layers using a transfer material comprising (a) a support, (b) a transfer layer containing in its binder a finely divided powder or a finely divided powder and a dissolved dye, and (c) a cover layer containing a binder and/or discrete, inert particles is described. Such transfer materials can be used to make color proof prints having high resolution, reproducible color density, low dot growth, and no troublesome background fog.

Abstract: A tonable, aqueous-processable, photosensitive element and process for forming a colored image from said element is described. The element comprises a support and a tonable, aqueous-processable photosensitive layer, said photosensitive layer consisting essentially of (a) an aqueous-processable, photoinsolubilizable photosensitive composition comprising a photosensitive material, and (b) a water-soluble plasticizer, wherein said photosensitive material is present in sufficient amount to insolubilize said photosensitive layer on exposure to actinic radiation, said photosensitive composition is present in sufficient amount to form a layer when said photosensitive layer is coated, and said plasticizer is present in sufficient amount to make said photosensitive layer.

Abstract: A process for preparing images, particularly color proof prints, in which tacky and non-tacky areas are produced by imagewise exposure of a radiation-sensitive layer is described. The tacky areas are toned with a toner having a tackiness that can be increased by irradiation with actinic radiation.

Abstract: The present invention provides a new image forming method. The image forming method uses a light-sensitive material. The light-sensitive material comprises a support and a light-sensitive polymerizable layer. The light-sensitive polymerizable layer contains silver halide, a reducing agent and an ethylenically unsaturated polymerizable compound or a cross-linkable polymer. Any of the silver halide, the reducing agent, the polymerizable compound and the polymer are not encapsulated in the layer. The image forming method comprising the steps of imagewise exposing to light the light-sensitive material and simultaneously or thereafter heating the light-sensitive material at a temperature of not lower than 70.degree. C. At the heat development, the silver halide is developed and the polymerizable compound or the cross-linkable polymer is hardened. Thus, a hardened image is formed on the light-sensitive material.

Abstract: At least partly overlapping patterns are formed on a substrate. The substrate is provided with a photosensitive layer which becomes tacky under the influence of light. The layer is exposed according to a pattern. A powder is provided on the exposed portions of the layer. The powder adheres to the exposed portions. Subsequently, the layer is again exposed according to a pattern which at least partly overlaps the first pattern. It has been found that a second powder adheres to the powder which has been provided first. In this manner, several powder layers can be provided on top or: each other on one photosensitive layer. This saves time.

Abstract: The process and product are disclosed for mounting free-flowing particles, which employ a support having a support surface with an array of tacky areas which have a size and bonding strength suitable for adhesion of either one or two of said particles. In the process the particles flow across the support surface to allow particles to contact the tacky areas and adhere thereto. An array of mounted particles may thus be provided which has at least 50% singly or doubly mounted particles.

Abstract: The present invention provides 6 embodiments of a new image forming method. The image forming method uses a light-sensitive material and an image receiving material. The light-sensitive material comprises a support and a light-sensitive polymerizable layer provided thereon. Some embodiments of the light-sensitive material further have an adhesive layer. The light-sensitive polymerizable layer contains silver halide, a reducing agent and an ethylenically unsaturated polymerizable compound or/and a cross-linkable polymer. Some embodiments of the light-sensitive polymerizable layer further contain a colorant. The image forming method comprises an exposing step, a developing step, a removing step and a transferring step or a laminating step. Some embodiments of the image forming method further contains a peeling step or a toning step. The present invention is characterized in the combination of the removing step with the transferring step or the laminating step.

Abstract: A process for transferring toned images to an image receptor at low temperatures with improved back transfer characteristics.

Abstract: A method for locally enhancing the contrast of a yellow image, which method comprises providing a yellow image on a white background, said image comprised of yellow areas and white areas, said yellow areas and white areas exhibiting pH levels which differ by at least 0.5 in an aqueous environment, applying to at least a portion of said yellow image a solution of a pH color changing dye which will change color to a color other than yellow when coated on one of said yellow areas or white areas and not change color when coated on the other of said yellow areas or white areas, thereby forming a colored image duplicating the yellow image in areas where the solution has been applied, said colored image having a visually better contrast than said yellow image.

Abstract: Flexographic photosensitive printing plates are made with formulations comprising block polymers having an architecture of BA, CBA or CBCA, where A is poly(vinylpyridine), B is poly(butadiene) or poly(isoprene) and C is styrene. The polymers may be quaternized or neutralized with an organic acid. When made with quaternized polymers, the plates after imaging with UV may be developed in aqueous solutions. The block polymers offer further advantages as to ease of synthesis, safety and improved resolution.

Abstract: The present invention provides 3 embodiments of a new image forming method. The image forming method uses a light-sensitive material and an removing sheet. The light-sensitive material comprises a support and a light-sensitive polymerizable layer provided thereon. Some embodiments of the light-sensitive material further have an adhesive layer. The light-sensitive polymerizable layer contains silver halide, a reducing agent and an ethylenically unsaturated polymerizable compound or/and a cross-linkable polymer. Some embodiments of the light-sensitive polymerizable layer further contain a colorant. The image forming method comprises an exposing step, a developing step and a removing step. Some embodiments of the image forming method further contains a toning step. The present invention is characterized in the removing step using a removing sheet.

Abstract: A process for preparing images on a tonable, light-sensitive layer using a transfer layer containing at least 20 percent by weight of a toner and a polymer with a maximum tensile strength of at least 2 N/mm.sup.2 as a binder. The pigmented transfer layers can be used in color proofing processes requiring high resolution, reproducible color density and low dot gain.

Abstract: The present invention concerns a phototackifiable composition useful as a coating on a substrate consisting of an optically clear blend of two or more polymers and a photosensitive compound that forms a strong acid on exposure to actinic radiation. The invention also relates to a process for coating such a composition on a support and toning the image-wise exposed composition on the support.

Abstract: A non-electroscopic prolonged tack toner for transferring toned images to an image receptor at low temperatures with improved back transfer characteristics.

Abstract: A photosensitive composition having contrast and selectivity, useful in forming high resolution patterns.The composition comprises a phenolic resin, a diazoquinone compound and an aromatic fused polycyclic sulfonic or carboxylic acid, in the form of the free acid and/or an ammonium salt and/or an acid halide, the cation component of the ammonium salt having the formula ##STR1## wherein R.sub.1, R.sub.2, R.sub.3 and R.sub.4, each represent hydrogen, C.sub.1 -C.sub.4 -alkyl or C.sub.1 -C.sub.4 -hydroxyalkyl.In forming a negative pattern, the composition is coated on a substrate and exposed imagewise to ultraviolet radiation, thereafter treated with a silicon compound, whereby the silicon compound is selectively absorbed into the irradiated portions and the non-irradiated portions are then removed by dry etching.

Abstract: Undesired stain is minimized for pearlescent toners, adapted for toning elements having non-tacky and tacky areas that define an image, by including in the toner inert, substantially spherical particles having a particle size of approximately 0.3 to 42 microns and by including a slip-agent surface coating on at least the pearlescent pigment particles, and preferably also on the inert, substantially spherical particles.

Abstract: A process for transferring non-electroscopic, non-prolonged tack, UV curable toned images to an image receptor wherein said process produces images having substantially reduced back transfer is described.

Abstract: A non-electroscopic prolonged tack toner for transferring toned images to an image receptor at low temperatures with improved back transfer characteristics.

Abstract: A multilayer, photosensitive element comprising a coversheet, a photohardenable layer, a contiguous layer, an isolation layer, an adhesive layer, and a support, is described. The element is used for image reproduction.

Abstract: The present invention concerns a phototackifiable composition useful as a coating on a substrate consisting of an optically clear blend of two or more polymers and a photosensitive compound that forms a strong acid on exposure to actinic radiation. The invention also relates to a process for coating such a composition on a support and toning the image-wise exposed composition on the support.

Abstract: A process for transferring toned images to an image receptor at low temperatures with improved back transfer characteristics.

Abstract: Undesired stain is minimized for pearlescent toners, adapted for toning elements having non-tacky and tacky areas that define an image, by including in the toner inert, substantially spherical particles having a particle size of approximately 0.3 to 42 microns and by including a slip-agent surface coating on at least the pearlescent pigment particles, and preferably also on the inert, substantially spherical particles.

Abstract: The invention refers to an apparatus for testing the color separations of a multicolor print, comprising a pair of press rollers being mounted in a frame and constituted by rollers which can be lifted off each other, through the roller gap of which an image-bearing element consisting of a support foil with an exposed, photosensitive layer, with a color foil, consisting of a color-bearing foil with a color layer, being placed on this element, is fed such that portions of the color layer adhere to the tacky areas of the image-bearing element. For the solution of this problem to provide an apparatus of the kind by which the testing of the color separations of a multicolor print can be carried out in a simple and rapid manner, a movable frame is provided in which a plurality of pairs of roll bearings for rolls to be unwound and wound up are mounted.

Abstract: Layer transfer process for image production wherein predetermined areas of the surface of an image carrier (21) are prepared to accept a color layer, the image carrier (21) and a color carrier (22) of layer transfer material are brought into mutual contact under pressure, and the color carrier is removed from the image carrier, so that color remains on the predetermined areas of the image carrier. A high uniformity of colorant application can be achieved over the entire surface of the image carrier. The process is performed by an apparatus with at least one roll nip (31) formed by two hard rolls (11, 12), preferably with different diameters, in which the two rolls are mutually offset relative to the feed direction (30) of the image carrier (21).

Abstract: Provided is a multilayer, multicolor overlay proof comprising at least one precolored overlay image and at least one toned overlay image, as well as a process for preparing such an overlay proof.

Abstract: Provided are multilayer, tonable peel-apart photosensitive elements which include an esterified polyol plasticizer in the photoadherent layer, together with processes for their use for preparing pre-press color proofs.

Abstract: The method and means for carrying out pre-press color proofing processes for color press printing, wherein at least one photosensitive film is laminated onto a sample of the paper intended to be used for the final press printing, which sample has been removably applied to a shape-stable and dimensionally stable support, exposed to light, and colored with a dry toner, characterized in that an interlayer which can be stripped from the support without damage has been applied in advance on the reverse side of the paper intended to be used for the final press printing.

Abstract: Selected photosensitive compounds activated by deep ultraviolet radiation or x-rays and capable of being employed at very low concentrations in photosensitive compositions are provided for producing thermally stable and aqueously developable, negative images on surfaces. The selected photosensitive compounds are halogenated organic compounds, including 1,1-bis[p-chlorophenyl]-2,2,2-trichloroethane, which generate an inorganic halogen acid upon exposure to deep UV or other short wavelength radiations. They may be used at concentrations of less than 5 weight percent of the total solids content of the photosensitive composition to produce aqueously developable negative images using deep UV exposure.

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: The alkali blue dry toner comprises 60 to 98 weight percent alkali blue pigment particles, 1 to 20 weight percent of di- and tri-decyl phosphate esters of free acids, and 1-20 weight percent of dehydroabietyl amine. The toner exhibits a high strength and soft texture in comparison with prior art pigment compositions made from similar ingredients.

Abstract: A novel decorating pigment-transfer sheet 1 utilizing at least one photosensitive resin layer 3 and at least one pigment layer deposited thereon is provided for decorating heat-resistant articles 7 such as ceramics. The transfer sheet 1 comprises a water-absorbing substrate sheet 2; a water soluble paste layer 5 placed thereon; at least one and normally three photosensitive resin layers 3 placed thereon, each resin layer 3 having adhesive dot photo-images 3c produced by irradiating the resin layer 3 through a photographic dotted film 6; and at least one and normally three glaze-containing pigment layers (a, b, c) deposited on the adhesive dot images 3c of each resin layer 3. The three pigment layers (a,b,c) normally comprise each pigment of three primary colors, respectively. The heat-resistant article 7 is decorated by soaking the transfer sheet 1 in water, removing the substrate sheet 2, transferring the resin/pigment layers onto the article surface, followed by firing.

Abstract: Provided is a multilayer, multicolor overlay proof comprising at least one precolored overlay image and at least one toned overlay image, as well as a process for preparing such an overlay proof.

Abstract: A method for the deposition of phosphor containing materials to CRT or VFD faceplates using reversal toning is dislosed. The method incudes the steps of charging the phosphor containing particles and the surface of a patterned photoresist with a charge of the same sign so that the particles are accurately deposited directly to an uncharged transparent surface electrode on the substrate.In a preferred embodiment, glass and/or polymeric binders may be included with the phosphor containing materials to enhance adherence to the substrate.

Abstract: This invention concerns a method for color development of a surface having imagewise tacky and nontacky image areas which comprises(a) applying a dry nonelectroscopic toner to the image-bearing surface;(b) distributing the toner particles over the image surface whereby the distributed toner particles become embedded solely in the tacky image areas; and(c) physically removing toner particles from the nontacky areas which are left substantially free of the toner particles, the improvement wherein high resolution images having higher toned optical density with improved color purity are obtained using a dry nonelectroscopic humidity resistant toner having a size distribution within the range from about 0.2 micron to about 10 microns, not more than 10% of the toner being below 0.

Abstract: A positively working, tonable, photohardenable mixture, as well as image-forming material prepared therefrom are described, which as essential components, contains a binder or mixture of binders, a photohardenable compound, a photoinitiator or an initiator system and a multivalent metal compound to improve the toning properties of the material.

Abstract: An imaging sheet comprising a substrate having an open porous matrix and a photohardenable composition contained within said porous matrix; said imaging sheet being useful in a process wherein said sheet is image-wise exposed to actinic radiation and is subjected to pressure to cause said photohardenable composition to image-wise exude from said porous matrix to a receiver sheet is disclosed. Also disclosed is a process for forming an image by using the inventive imaging sheet, an imaging system including the inventive imaging sheet, and a process for forming a lithographic printing plate by using the inventive imaging sheet.

Abstract: Photosensitive composition for production of repeatably tonable layers for the manufacture of fluorescent screens with a black matrix for color picture tubes, said composition comprising at least one light sensitive 4-(2'-nitrophenyl)-1,4-dihydropyridine compound and at least one organic sulfonic acid.

Abstract: This invention relates to a gradient radiation intensifying screen having as an integral part thereof a tonable, photosensitive layer bearing a toned, anatomically correct, unsharp halftone image.

Abstract: An improved process for preparing negative images from a photohardenable tonable element, wherein the unexposed photohardenable tonable element is tacky in a preselected temperature range, T.sub.1 -T.sub.2, in which temperature range the exposed photosensitive tonable element is nontacky but wherein the exposed element is retackifiable at elevated temperatures above T.sub.2. After imagewise exposure the unexposed areas have a colorless toning material applied to them at a temperature within the range T.sub.1 -T.sub.2 to make them nontacky at temperatures of at least up to T.sub.3, which is greater than T.sub.2. After heating to an elevated temperature above T.sub.2 but less than T.sub.3 the exposed areas have a contrasting toning material applied to them to give a negative or reverse image.

Abstract: A developer for developing electrostatic latent images comprises negatively chargeable toner particles and hydrophobic, negatively chargeable silica fine power,said silica fine powder being obtained by treating silica fine powder with a silane coupling agent represented by the following formula:RmSiYn or Y.sub.3 --Si--NH--Si--Y.sub.3and treating further said treated silica fine powder with a silicone oil having the structure: ##STR1## An image forming method comprises forming an electrostatic latent image on a photosensitive drum; developing said latent image with a developer to form toner images, said developer comprising negatively chargeable toner particles and, hydrophobic, negatively chargeable silica fine powder,said silica fine powder being obtained by treating silica fine powder with a silane coupling agent represented by the following formula:RmSiYn or Y.sub.3 --Si--NH--Si--Y.sub.

Abstract: Process for producing negative or positive images from a photohardenable electrostatic master comprising an electrically conductive substrate bearing a photohardenable layer containing a photoinhibitor and a visible light sensitizer wherein the negative image (1) is prepared by (a) imagewise exposing to visible radiation, (b) charging electrostatically the master, (c) developing the charged image with an electrostatic toner, e.g., liquid electrostatic developer, and (d) transferring the toner image to a surface, e.g., paper. The positive image (2) is prepared by (a) imagewise exposing to ultraviolet radiation. (b) exposing overall to visible radiation followed by steps (b), (c) and (d) above. Multiple images can be prepared from the same master as well as color proofs using different color toners or developers and transferring in register over the original image.

Abstract: A selected pattern of conductor runs is formed on a sheet having a surface layer of dielectric material, by forming an electrostatically charged image of the selected pattern on the surface layer. Toner powder, comprising core particles of conductive material coated with fusible dielectric material, is deposited on the surface layer and is fused to the sheet.

Abstract: The invention relates to a process for producing an image on a light-sensitive tonable layer comprising the steps of:(A) exposing the light-sensitive layer imagewise to produce imagewise tacky and complementary non-tacky areas;(B) bringing the imagewise-exposed layer into surface-to-surface contact with a supported non-photosensitive transfer layer containing at least one finely divided powder and/or a dissolved dye in a binder; and(C) separating the transfer layer from the light-sensitive layer, whereby the transfer layer adheres selectively to the imagewise tacky areas,the improvement wherein, the binder of the transfer layer consists essentially of(a) about 55-97 wt. % of at least one polymer in the form of a powder having a minimum film-forming temperature of above 50.degree. C., and(b) about 3-45 wt.

Abstract: A photo-solubilizable composition is disclosed, comprising (a) a compound capable of producing an acid upon being irradiated with actinic light rays, and (b) a compound containing at least one silyl ether group represented by formula (I) ##STR1## that is capable of being decomposed with an acid and at least one group selected from among a urethane group, a ureido group, an amido group, and an ester group, and, according to a preferred embodiment at least one hydrophilic group.

Abstract: A method for substantially increasing the refractive index change induced in porous glass through metal oxide deposition by photolysis of organometallic compounds present therein, according to which the photolyzed glass is re-impregnated with additional organometallic compounds which undergo decomposition reactions catalyzed by the photolyzed organometallics or oxides resulting from the initial photolysis step. Enhancements of ten times the original refractive index change are attainable.

Abstract: Fluorescent dry nonelectroscopic toner comprising fluorescent pigmented organic resin particles having a size distribution of 0.2 to 50 micrometers, surface coated with at least 0.1% by weight of silicone oil or fluorocarbon compound, in combination with at least 0.5% by weight of a water soluble, polymeric quaternary ammonium compound as defined. The fluorescent toner is useful in color developing positive- and negative-working photosensitive elements. The toners provide good toning quality and excellent lack of background color, together with stability on aging.

Abstract: A method of forming any film pattern on an arbitrary substrate, more particularly, a pattern forming method which comprises selectively forming a film on an arbitrary substrate, by use of chemical reaction, and further, a method of forming a pattern of an organic film by selectively removing the organic film at a lower layer, with the pattern of the Langmuir-Blodgett's film containing Si as a mask.