Abstract: Pressure sensitive carbonless transfer sheets are made capable of producing clear images by light impact marking means in multi-part carbonless forms packs containing at least six of the sheets, such as 8-12 sheets, by coating a chromogenic material onto a paper sheet characterized by a basis weight of 9-11 lbs, a thickness of 40-50 microns, a Gurley porosity of 400-4000 seconds, and a Bendtsen smoothness of 120-260 ml/min on the wire side and 100-280 ml/min on the felt side. Bar codes are also transferrable with good scannability through forms packs containing three or more of the sheets.

Abstract: Disclosed is a heat-sensitive recording material comprising a support and a heat-sensitive recording layer, characterized in that an intermediate layer is formed between the support and the heat-sensitive recording layer wherein the intermediate layer comprises a pigment having an apparent specific gravity of about 0.7 g/cm.sup.3 or less and a polymeric substance having a glass transition temperature of 0.degree. C. or lower as a binder.

Abstract: A photosensitive material comprising a support having a layer of microcapsules on the surface thereof, said microcapsules containing a color precursor and a photohardenable or photosoftenable composition, and said support being a highly reflective, non-difuse polymeric film or coated paperstock.

Abstract: A positive-acting thermographic material which is black or dark colored in the unexposed condition turns white or light colored when exposed to elevated temperatures. The material comprises a binder, a dark colored complex of ferric iron with a ligand chosen from organothiophosphorus acids, and a white organophosphorus acid or its alkali or alkaline earth metal salt. At elevated temperatures a double decomposition reaction occurs giving the light colored complex of ferric iron with the organophosphorus acid.

Abstract: Heat-sensitive recording paper comprising a paper support onto which a heat-sensitive color-forming layer has been coated, wherein the paper support comprises a base paper having coated thereon a subbing layer comprised of a mixture of fine particles of a thermoplastic resin and a binder, thus whereby enhancement of the rate and the uniformity of contact of the heat-sensitive paper with a thermal head or like recording means is achieved.

Abstract: Disclosed is a heat-sensitive recording material useful in the manufacture of thermal paper and thermal labels. The material comprises a cellulosic or other suitable substrate, a thermally imprintable color-producing layer, and a protective layer over the color-producing layer. It may also include a second protective layer and/or a pressure-sensitive adhesive layer, on the surface of the substrate opposite from the color-producing layer, and a releasable liner covering the adhesive layer. The color-producing layer includes a basic, acid-neutralizing agent for both reducing background discoloration during manufacturing and increasing image definition. The protective layer comprises a cross-linked binder and fluorochemical surfactant-treated hydrocarbon or fluorocarbon particles as a friction reducing material.

Abstract: A heat-sensitive recording material is disclosed, which comprises a support having thereon a heat-sensitive recording layer comprising a diazo compound and a coupler precursor compound, said coupler precursor compound being capable of forming a compound having an ability of coupling with said diazo compound upon heating.

Abstract: Disclosed is a class of dyes that can be rendered colorless by the application of heat in a silverless imaging system and which have utility in information recording and display, color hard copy and photographic systems. Certain dye ylides, for example, xanthane dye ylides are disclosed which when incorporated in a thin film can be imagewise heated to develop an image by reason of the ylide dye disassociating in the areas where heated and thereby being rendered colorless.

Abstract: A heat-sensitive recording material is disclosed. The material comprises a support having provided thereon a recording layer containing one or more diazo compound, a coupling component, and at least one thiohydroquinone derivative as a sensitizing agent.

Abstract: A pressure-sensitive microcapsule sheet comprising a support having thereon a pressure-sensitive layer comprising microcapsules and a binder comprising a copolymer latex composed of at least two monomers selected from the group consisting of an aliphatic conjugated diolefin monomer, an aromatic vinyl monomer and an ethylenically unsaturated nitrile monomer and an ethylenically unsaturated acid amide monomer. The sheet is free from color stain and fog during printing.

Abstract: A light-sensitive microcapsule containing silver halide and a polymerizable compound which is enclosed with a shell comprising a polyurea resin and/or polyurethane resin. A light-sensitive material comprising a light-sensitive layer provided on a support wherein the light-sensitive layer contains microcapsules containing silver halide and a polymerizable compound enclosed with a shell comprising an polyurea resin and/or a polyurethane resin and a reducing agent.

Abstract: A heat-sensitive recording material is disclosed. The material comprises a support having provided thereon a heat-sensitive color-forming layer containing a colorless or slightly colored electron donating dye precursor and an electron accepting compound which is capable of forming color by reaction with the said electron donating dye precursor, wherein said color-forming layer has provided thereon a protective layer containing a binder and said color-forming layer contains a hardening agent which is capable of hardening said binder in the protective layer by reaction with said binder.

Abstract: A process for the production of a heat-sensitive recording material in which a color former causing a color formation reaction and a developer forming color on reaction with the color former are incorporated in a heat-sensitive recording layer, and at least one of the color former and the developer is contained in microcapsules having walls which are impermeable to both the color former and the developer at ordinary temperature but which becomes permeable to at least one of the color former and the developer on heating, where the heat-sensitive recording layer is coated on a support which is then subjected to surface treatment by passing it through a pressure applying apparatus comprising a metallic roll and an elastic roll in such a manner that the heat-sensitive recording layer is in contact with the metallic roll.

Abstract: A developer sheet useful in forming reproductions which have a controllable gloss finish or in forming transparencies comprising a support having a layer of a finely divided, thermoplastic, developer material on the surface thereof, said developer material being capable of reacting with a color precursor to produce a visible image and being capable of coalescing into a thin film which imparts gloss to said image upon application of heat and/or pressure.The developer sheet comprising a support having a layer of a finely divided thermoplastic developer material on the surface thereof can additionally comprise oil-containing microcapsules such that upon microcapsule rupture, the oil plasticizes the developer material.

Abstract: A thermosensitive recording material having a fluorescent color comprising a support, a thermosensitive recording layer formed on one side of the support, the thermosensitive recording layer comprising (i) a thermosensitive recording system capable of producing color upon application of heat thereto and (ii) a colored fluorescent dye composition by which the recording material has high recognition ability; and optionally an adhesive layer formed on the opposite side of the support.

Abstract: The present invention provides a developer sheet composed of a sheet-like molded form of a mixture of a developer and a dye-adsorbing inorganic substance and a substrate integrated by adhesion. According to the present invention, there is provided a developer sheet improved in color coupling performance, outstanding in stability (to water, heat, light, plasticizer etc.) and manufacturable with a high efficiency.

Abstract: A long chain fatty acid salt, for example calcium, sodium or aluminium stearate, is included in small amounts (e.g. 2 to 10% by weight) in an otherwise conventional color developer composition of which the major active ingredient is an adsorbent inorganic material. Record material coated with such a composition exhibits better sheet-fed runnability characteristics in wet offset printing operations than if the fatty acid salt is not present.

Abstract: A thermosensitive recording material is disclosed, which comprises a support material and a thermosensitive coloring layer formed thereon comprising a leuco dye, a color developer capable of inducing color formation in the leuco dye upon application of heat thereto, and a vinyl ether compound having the general formula, ##STR1## which serves as thermosensitivity improvement agent.

Abstract: A heat-sensitive recording material comprising a support having provided thereon a heat-sensitive layer containing microcapsules containing at least one diazonium salt capable of azo-coupling with 2-hydroxy-3-naphthoic acid anilide to develop a blue color, a 2-hydroxy-3-naphthoic acid amide derivative, a benzoylacetic amide derivative represented by the following formula and a basic substance: ##STR1## wherein X represents a hydrogen atom, a halogen atom, a lower alkyl group or an alkoxy, aralkyloxy, phenoxy or acylamino group having up to 18 carbon atoms; Y represents an alkyl or aralkyl group having from 7 to 18 carbon atoms, an alkoxy, aralkyloxy, phenoxy, naphthyloxy, alkylthio, aralkylthio or phenylthio group having from 6 to 18 carbon atoms, a naphthylthio group, a sulfonyloxy group, a sulfamoyl gorup, a ureido group, a thioureido group or an acylamino group; X' and Y' each represents a hydrogen atom, a halogen atom, a lower alkyl group or a lower alkoxy group; and Y and Y' may combine to form a substit

Abstract: Correction compositions for correcting markings provided on the surface of a pressure-sensitive chemical recording medium carrying a developer material which comprises an acidic developer by interaction of the developer material with a color-providing material. The compositions comprise a substantially uniform dispersion of an opacifying pigment, a polymeric film-forming material, and a Lewis acid. The composition is applied to a marking to provide a film which covers the marking, and a visible corrected marking can be provided on the film by applying a pattern of color-providing material corresponding to the corrected marking to the film.

Abstract: A heat-sensitive recording material comprising a support having provided thereon a heat-sensitive color forming layer containing a colorless or slightly colored electron donating dye precursor and an electron accepting compound capable of forming color by the reaction with the electron donating dye precursor, wherein the heat-sensitive color forming layer contain modified polyvinyl alcohol having a hydrophobic group including a hydrocarbon residual group having 4 or more carbon atoms in the molecule.

Abstract: Disclosed is a two-color heat-sensitive recording material which comprises a base sheet and a recording layer of single-layer or multi-layer structure formed on the base sheet, the recording layer comrising:(a) a diazonium salt,(b) a basic leuco dye,(c) a 2-hydroxy-3-naphthoic acid derivative which acts as a coupler compound for causing the diazonium salt to develop color when heated and which also acts as a color developing material for causing the basic leuco dye to develop color when heated, and(d) a basic substance, wherein the diazonium salt and the basic leuco dye each form a color upon application of heat, thereby giving the first image of a mixed color, and, then, after irradiation of an active ray to decompose the diazonium salt, the basic leuco dye alone forms its own color upon application of heat, thereby giving the second image whose color is different from the mixed color of the first image.

Abstract: A process for microencapsulating hydrophobic oils with color reactants, dissolved therein, of color reaction systems by reacting a water-soluble non-ionic melamine/formaldehyde precondensate and a water-soluble polymer in an oil-in-water dispersion for forming the capsule envelope is described. The special feature of this process is that, for stabilizing the oil-in-water dispersion, an aqueous solution of a cationic melamine/formaldehyde precondensate and the aqueous solution of a water-soluble polymer are mixed with vigorous stirring, a solid precipitating as a very fine suspension in the mixture, the mixture thus obtained and containing the very finely suspended solid is mixed with ther oil, containing the color reactant in solution, with vigorous stirring, the oil-in-water dispersion thus obtained in acidified and an aqueous solution of a water-soluble non-ionic melamine/formaldehyde precondensate is added with stirring, in order to form the capsule envelope.

Abstract: A color developer sheet for pressure-sensitive recording containing as a color developer only novolak phenol resin or novolak phenol resin and a semi-synthetic solid acid, and as a binder an acrylamide-acrylic acid copolymer can prevent yellowing of the color developer sheet and give higher developed color density.

Abstract: A pressure-sensitive recording sheet which forms a colored image by the reaction of an electron donating color former with an electron accepting developer, comprising a support having provided thereon a micro-encapsulated electron donating color former and an electron accepting developer is disclosed, wherein one or more layers containing the microencapsulated electron donating color former contains at least one pigment having a pH of 8.5 or more.

Abstract: Disclosed is a coating composition for producing a high solids content carboxymethylcellulose based "CB" coating for use in pressure sensitive carbonless copy systems. The formulation comprises carboxylmethylcellulose, a wall-forming carboxylated acrylic resin, an organic cross-linker, a polyvalent metal salt, and an oil containing color-forming dye. The composition has a solids content of at lesat 30% and a viscosity within the range of 50 to 5000 centiposes. The CB paper exhibits the ability to produce improved imaging on computer and dot matrix printers because of better release efficiency and may be manufactured using less energy.

Abstract: Carbonless copy paper is prepared by placing a first sheet of paper coated on one side with a hydrophilic colloid solution in which are dispersed microcapsules of oil droplets containing a colorless electron donor dye into contact with a second sheet of paper coated with an absorbent and an electron accepting color developer compound. The heat resistance and moisture resistance of the copy paper is substantially improved by adding to the hydrophilic colloid solution a graft copolymer having a backbone of carboxymethyl cellulose or gum arabic and side chains of polyacrylic acid or polymethacrylic acid. The image response time of the second sheet can be improved by adding pectin or sulfated starch to the coating.

Abstract: Disclosed is a coating composition for producing a high solids content carboxymethylcellulose based "CB" coating for use in pressure sensitive carbonless copy systems. The formulation comprises carboxylmethylcellulose, a wall-forming carboxylated acrylic resin, an organic cross-linker, a polyvalent metal salt, and an oil containing color-forming dye. The composition has a solids content of at least 30% and a viscosity within the range of 50 to 5000 centiposes. The CB paper exhibits the ability to produce improved imaging on computer and dot matrix printers because of better release efficiency and may be manufactured using less energy.

Abstract: Disclosed herein is a process for producing a sheet of a color-developer for a pressure-sensitive recording paper, which process comprises the steps of dissolving an organic color-developer in an organic solvent, dispersing the formed solution into water, thereby forming minute liquid droplets with a diameter of 0.01 to 2 .mu.m, removing the solvent in the liquid droplets by heating while taking care not to cause any coalescence of the droplets and also any unstabilization of the emulsion, thereby forming a slurry comprising the minute granules of the color-developer and applying the slurry on a supporting sheet.

Abstract: Disclosed is a heat and pressure sensitive recording material for recording and duplicating, comprising an up sheet I and a down sheet II, wherein the up sheet I is coated on one surface with a composition A comprising a colorless electron donative organic compound 1 and an acidic organic compound 2 which develops the color of the compound 1 when heat is applied, and is coated on the other side facing the down sheet II with a composition B comprising the compound 1, an encapsulated compound 1' of the compound 1 and a hot metal material 3. The down sheet II is coated on the side facing the up sheet I with a composition C comprising the organic compound 2. The heat and pressure sensitive recording material may further have inserted beween the up sheet I and the down sheet II at least one middle sheet III coated with the composition C on one side and with the composition B on the other side.

Abstract: Thermographic materials are colorless when unexposed, but provide an intense dark image when thermally addressed. The materials comprise white ferric organophosphate, ferric organophosphinate, or ferric organophosphonate in a clear binder with a colorless catechol or polycatechol held in said binder in solid solution. The choice of substituents on the catechol nucleus can give a change in the color of the thermal image together and provide good near infrared absorption. Use of mixed catechols can give achromatic black images. These combinations of materials show high stability at ambient temperatures.

Abstract: A heat-sensitive recording paper is disclosed. The paper comprises a paper support having provided thereon a heat-sensitive color-forming layer wherein said paper support has at least 10 wt % of a white pigment contained in its interior and which also contains a polymer latex with an MFT (minimum film-forming temperature) of no higher than 40.degree. C. in an amount of from 5 to 30 wt % based on the weight of the white pigment.

Abstract: A thermosensitive recording material is disclosed which comprises (a) a support material, (b) a plurality of undercoat layers successively overlaid on the support material, and (c) a thermosensitive recording layer formed on the undercoat layers.

Abstract: A heat-sensitive recording sheet is disclosed, comprising a paper support and a heat-sensitive color forming layer provided on one side of the paper support and an antistatic layer provided on the other side of the paper support, wherein the antistatic layer containing at least one polymer of homopolymers and copolymers of vinyl compounds having a sulfonic acid group, having a weight-average molecular weight of at least 5,000 and at least one surfactant selected from sulfosuccinates, alkylbenezenesulfonic acid salts and naphthalenesulfonic acid salts.This heat-sensitive recording sheet is improved in print running properties under low humidity conditions.

Abstract: A high sensitivity thermal paper resistant to image erasure is disclosed. The thermal paper has a color-forming composition comprising a chromogenic material, an acidic developer material, a water insoluble polymer consisting of poly .alpha.-methylstyrene or .alpha.-methylstyrene/vinyltoluene copolymer, and a thermal modifier. Preferably the thermal modifier is selected from acetoacet-o-toluidine, diphenoxyethane, phenyl-1-hydroxy-2-naphthoate, diheptadecyl ketone and octadecanamide. The disclosed composition when thermally imaged is surprisingly resistant to image erasure and smearing attributable to fingerprint oils.

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, a polymerizable compound and a color image forming substance;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 thereby fixing the color image forming substance on the support within the area;pressing the light-sensitive material on an image-receiving material comprising an image-receiving layer provided on a support wherein the image-receiving layer contains a granulated thermoplastic compound, to transfer the unfixed color image forming substance to the image-receiving material; andheating the image-receiving material.

Abstract: A developer sheet having reduced tack useful in forming reproductions having a controllable gloss finish or in forming transparencies is provided. The developer sheet has a support with a layer on the surface of the support of a finely divided thermoplastic developer material and a non-reactive, non-scattering pigment. The developer material is capable of reacting with a color precursor to produce a visible image while the pigment reduces tack. Both the developer material and the pigment are capable of forming an essentially transparent film upon the application of heat and/or pressure.

Abstract: In a heat-sensitive recording material which comprises a substrate and a heat-sensitive recording layer thereon containing a diazonium salt and coupler compound, the heat-sensitive recording material characterized in that the coupler compound comprises at least one compound represented by the formula [I] below ##STR1## wherein R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5, R.sub.6, R.sub.7 and R.sub.8 are each hydrogen atom, halogen atom, alkyl or alkoxyl; R.sub.9 is hydrogen atom or alkyl; X and Y are each hydrogen atom, --OR.sub.10 or --N(R.sub.11)(R.sub.12), R.sub.10, R.sub.11 and R.sub.12 being each hydrogen atom, alkyl, alicyclic group, aryl or aralkyl, these R.sub.10, R.sub.11 and R.sub.12 may have a substituent selected from among halogen atom, alkyl and alkoxy, R.sub.11 and R.sub.12 may link together to form a heteroring, or, one or both of R.sub.11 and R.sub.12 may form a heteroring together with an adjacent benzene ring; n is 0 or 1.

Abstract: A heat-sensitive recording material containing a special sensitizer in a heat-sensitive recording layer is excellent in thermal response and sensitivity.

Abstract: Reversible image-forming materials on which images are formed by a thermal head and conversely the formed images are erasable by water or moisture are obtained by providing, on one surface of a support, a recording layer comprising a specific fluorane type color former, a color developer and a binder and further providing an overcoat layer on the recording layer. By providing further a sticking prevention layer on the overcoat layer, sticking can be prevented and high speed printing is enabled.

Abstract: A microcapsule-coated sheet for pressure-sensitive copying is disclosed. The microcapsule sheet comprises a base paper having thereon a layer comprising microcapsules and synthetic polymer latex having an oil swelling degree of at least 50% as a binder, and is capable of preventing the occurrence of fog during printing.

Abstract: A process for preparing a recording material comprising a support and a recording layer on the support, said recording layer containing a coupling agent and containing microcapsules containing a diazo compound, wherein a microcapsule dispersion which is coated on the support to form the recording layer is prepared by preparing an emulsion containing at least a diazo compound and a microcapsule wall-forming substance, forming microcapsule walls on emulsion droplets, and removing diazo compound remaining unincluded in the microcapsules formed from the emulsion.

Abstract: A heat-sensitive recording material comprises a sheet substrate applied thereon with a heat-sensitive, color-developing layer containing as the main components a colorless or light-colored leuco dye, a developer for permitting said dye to develop a color by heating and a binder, in which the binder used is an ammonium salt of a diisobutylene/maleic anhydride copolymer is expressed in terms of the following general formula: ##STR1## wherein R stands for a diisobutylene group a part of said ammonium salt being substituted and modified by an ammonium salt comprising a primary, secondary or tertiary ethanol amine.

Abstract: A novel heat-sensitive recording material comprising a support having coated thereon a heat-sensitive coloring layer containing a colorless or light-colored electron donor dye precursor and an electron acceptor compound which colors upon reaction with said electron donor dye precursor and a protective alyer coated on the heat-sensitive coloring layer comprising a saponified product of a vinyl acetate-acrylamide copolymer or vinyl acetate-methacrylamide copolymer having an acrylamide or methacrylamide content of about 0.5 to about 80% by weight.

Abstract: A protective coating is applied to a thermally reactive material layer in laminate manner. The coating includes a fluorocarbon sizing agent which causes beading of any adverse material and prevents penetration thereof into the thermally reactive material. A combined color developing and dye formulation includes bisphenol, wax, clay and dye in a binder of polyvinyl alcohol which effects a spreading of any adverse material on the surface of the coating.

Abstract: Correction compositions for correcting markings provided on the surface of a pressure-sensitive chemical recording medium carrying a developer material which comprises an acidic developer by interaction of the developer material with a color-providing material. The compositions comprise a substantially uniform dispersion of an opacifying pigment, a polymeric film-forming material, and a Lewis acid. The composition is applied to a marking to provide a film which covers the marking, and a visible correcting marking can be provided on the film by applying a pattern of color-providing material corresponding to the corrected marking to the film.

Abstract: A thermosensitive recording material comprising (a) a support material, (b) an undercoat layer formed thereon, comprising a polyvinyl alcohol having a saponification ratio ranging from 80 mole % to 95 mole %, which serves as water-soluble binder agent, a first water-resisting-property-improvement agent and a first organic filler, (c) a thermosensitive coloring layer formed on the undercoat layer, comprising a leuco dye, a color developer capable of inducing color formation in the leuco dye upon application of heat thereto and the same polyvinyl alcohol as first mentioned and (d) an overcoating layer formed on the thermosensitive coloring layer, comprising the same polyvinyl alcohol as first mentioned, a second water-resisting-property-improvement agent and a second organic filler.

Abstract: A heat-sensitive record material having a thick base support consisting of at least two base sheets and at least one binder layer, said base support weighing at least 150 g/m.sup.2 and having an excellent dimensional stability without accompaniment of any cockles and any background fogginess. It is particularly suitable for use in providing tags, tickets, cards, price marks etc. A process for the production of said heat-sensitive record material by the use of a binder consisting essentially of at least one thermoplastic polymer for which the vicat softening temperature is 20.degree. C. to 180.degree. C. and preferably 30.degree. C. to 160.degree. C.

Abstract: A heat-sensitive recording material is disclosed, comprising a heat-sensitive layer containing a normally colorless or slightly colored dye precursor and a compound capable of reacting with the dye precursor to form color, with at least one of the heat-sensitive layer, an interlayer, and a protective layer containing polyvinyl alcohol as an adhesive and a hardener represented by formula (I) ##STR1## wherein R.sub.1, R.sub.2, R.sub.3 and R.sub.4 each represents a hydrogen atom, a halogen atom, a saturated or unsaturated hydrocarbon group containing from 1 to 6 carbon atoms, or a saturated or unsaturated hydrocarbon group containing from 1 to 20 carbon atoms and at least one ether bond.

Abstract: This invention relates to a water resistant composition which comprises (A) polyvinyl alcohol, (B) a chitosan of which aqueous 1% solution has a viscosity not greater than 70 centipoise at 20.degree. C. and (C) an aldehyde compound, as well as a heat-sensitive recording sheet which comprises said composition. The composition has excellent water resistant properties and the heat-sensitive recording sheet has improved color forming properties and excellent resistance to water and solvents.