Abstract: A photosensitive element comprising, in order a support; a photosensitive layer comprising a photosensitive composition; and a layer comprising a thermally sensitive material; wherein the thermally sensitive material is (a) incompatible with the photosensitive composition, (b) non-tacky and non-blocking at room temperature, and (c) tackifiable at 70.degree. C. to 120.degree. C. and a process for using these elements is described. The photosensitive element may be in sheet or roll form.

Abstract: An ink/media set is provided having improved durability. The ink contains an aqueous medium and a dye or pigment dispersion as the colorant. The media has a coating that contains a hydrophilic polymer and a reactive component. The printed media is exposed to an energy source that binds the ink to the media coating, and renders the coating more durable.

Abstract: An ink/media set is provided having improved durability. The ink contains an aqueous medium and a dye or pigment dispersion as the colorant. The media has a coating that contains a hydrophilic polymer and a reactive component. The printed media is exposed to an energy source that binds the ink to the media coating, and renders the coating more durable.

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

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 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 positive-working, low silver containing, wash-out element comprises a support, a fogged silver halide emulsion layer optionally containing a colorant, a photopolymer layer coated contiguous to silver halide layer and an abrasion layer containing a conventional, wash-out developing agent coated over the photopolymer layer. A process of making a positive image comprises image-wise exposing the above element to actinic radiation, immersing the element in an aqueous alkaline medium, and washing the element with water.

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

Abstract: This invention relates to non-electroscopic prolonged tack toners for transferring toned images to an image receptor at low temperatures in the range from 20.degree. C. to 70.degree. C.

Abstract: A gelatino, silver halide, wash-out element containing a dispersion of a plasticized hydrophobic thermoplastic polymer dispersed as droplets in water, is described. This element can be used to prepare wash-out images of superior quality and integrity. Carbon black also may be present to enhance and darken the resulting images prepared therefrom.

Abstract: Negative-working, silver wash-off element comprising, in order, (a) support, (b) photosensitive layer comprising silver halide and hydrophilic macromolecular organic polymer dispersion medium including a dispersed phase of a monomer compound and photoinitiator, and (c) an abrasion overcoat layer. In another embodiment, the wash-off element has between the support and abrasion overcoat layer, nearer the support a layer comprising binder, colorant and photosensitive silver halide and a photosensitive layer comprising silver halide and said hydrophilic macromolecular organic polymer dispersion medium including said dispersed phase. The wash-off element is useful for the preparation of half-tone images.

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: Photopolymerizable element for preparation of lithographic film comprising (1) support (2) hydrophilic resin layer containing dispersed metal particles, e.g., silver, and (3) photopolymerizable layer comprising a hydrophilic macromolecular organic polymeric dispersion, e.g., gelatin medium, including a dispersed phase of ethylenically unsaturated monomer and photoinitiator or photoinitiator system. The element can form a negative lithographic film after imagewise exposure by bleaching, rinsing, optionally fixing and drying. A positive lithographic film is prepared after imagewise exposure by immersing in bath containing compound which generates sulfide ions and treating with bleach solution followed by rinsing and drying.

Abstract: Process for preparation of dot-etched, photopolymerizable lithographic film which comprises (a) exposing imagewise a photopolymerizable element consisting essentially of a support and two caustic or water soluble layers, the upper layer being clear, unpigmented photopolymer and the lower layer being a polymeric binder having dispersed therein a chemically soluble pigment, e.g., colloidal silver or other metal; and optionally an overcoat layer; developing the exposed element with caustic solution and then water; and treating the developed image with a solubilizing agent, e.g., K.sub.2 Fe(CN).sub.6, FeCl.sub.3,Na.sub.2 S.sub.2 O.sub.3, KCNS, KOH, NH.sub.3, etc. A dot-etched lithographic film is prepared.

Abstract: Photosensitive element for forming a lithographic negative which comprises a support bearing a dry photosensitive layer consisting essentially of an intimate mixture of colloidal metal particles, e.g., silver, etc., colloid binder, free radical producing compound, and mercaptan compound, e.g., 2-mercaptobenzoxazole. A two layer photosensitive element embodiment comprises on a support a lower dry colloidal layer having dispersed colloidal metal particles and an upper dry layer consisting essentially of free-radical producing compound and a mercaptan compound. The elements are exposed imagewise, bleached, rinsed, and optionally fixed.

Abstract: Process for preparation of dot-etched photopolymerizable lithographic film which comprises (a) exposing imagewise a photopolymerizable element consisting essentially of a support and a layer of caustic soluble photopolymerizable composition having dispersed therein a chemically soluble pigment, e.g., iron oxide, and optionally an overcoat layer; (b) developing the exposed element with caustic solution; and (c) treating the developed element with a chemical solubilizing agent for the pigment. A lithographic film is prepared.

Abstract: Process for preparation of dot-etched photopolymerizable lithographic film which comprises (a) exposing imagewise a photopolymerizable element consisting essentially of a support and two layers of caustic soluble photopolymer, the upper layer being clear and the lower layer having dispersed therein a chemically soluble pigment, e.g., iron oxide; and optionally an overcoat layer; (b) developing the exposed element with caustic solution; and (c) treating the developed element with a chemical solubilizing agent for the pigment thereby reducing the size of the pigmented area by diffusion etching. A dot-etched lithographic film is prepared.

Abstract: Process for preparation of dot-etched photopolymerizable lithographic film which comprises (a) exposing imagewise a photopolymerizable element consisting essentially of a support bearing (i) layer of acid soluble photopolymerizable composition having dispersed therein a chemically soluble pigment; or (ii), in order, (a) layer of acid soluble photopolymer having dispersed therein chemically soluble pigment, (b) layer of clear, unpigmented acid soluble photopolymer composition; or (iii), in order, (a) nonphotosensitive layer of an aqueous soluble polymeric binder having dispersed therein chemically soluble pigment, (b) layer of clear unpigmented acid soluble photopolymer composition, and optionally on each of said elements an overcoat layer; (b) developing the exposed element with acid solution; and (c) treating the developed element with a chemical solubilizing agent for the pigment. Lithographic films are prepared.

Abstract: Prolonged tack toner consisting essentially of organic polymer, plasticizer therefor, electrically conductive metal particles, glass frit, and, optionally, inorganic particulate refractory materials, the plasticizer being present in an amount greater than its compatibility level in the polymer. The toner is useful for preparing electrically conductive images or circuits.