Abstract: There is provided a reversible thermosensitive recording medium including a support, an intermediate layer, and a thermosensitive recording layer which reversibly changes a color thereof depending on a temperature, wherein the thermosensitive recording layer contains an electron-donating coloring compound, and an electron-accepting compound represented by the following general formula 1: where, n is an integer of 23 or more, and wherein the intermediate layer is disposed between the support and the thermosensitive recording layer, and contains hollow particles having a void ratio of 70% or more, a maximum diameter D100 of 5.0 ?m to 10.0 ?m, and a ratio D100/D50 of 2.0 to 3.0 where the ratio D100/D50 is a ratio of the maximum diameter D100 to a 50% cumulative particle diameter D50 of the hollow particles.

Abstract: A heat-sensitive recording material comprising on one surface of a substrate a heat-sensitive coloring layer comprising a leuco dye and a color developer, wherein the heat-sensitive recording material comprises a layer which comprises a copolymer of a (meth)acryloyloxyalkylammonium salt and styrene; and the layer which comprises the copolymer of the (meth)acryloyloxyalkylammonium salt and styrene is at least any one of a back layer, an under layer and a protective layer.

Abstract: A multicolor thermosensitive recording medium having thermosensitive coloring layers which are formed by printing water-dispersion thermosensitive inks or water-dispersion inks on an ink receptive layer using a printing plate. The recording medium comprises an ink receptive layer formed on a surface of a substrate, thermosensitive coloring layers developing different colors, which are integrated with the ink receptive layer by impregnating the ink receptive layer with a water-dispersion thermosensitive ink that is prepared by dispersing in water a pigment component including at least an electron-accepting compound and electron-donating compound. The color density and coloring sensitivity of the thermosensitive coloring layers have been improved by providing over the thermosensitive coloring layers an auxiliary coloring layer containing at least one of an electron-accepting compound and a sensitizer.

Abstract: A heat-sensitive recording material comprising a support and a heat-sensitive recording layer, the heat-sensitive recording layer comprising a colorless or pale-colored basic dye and a developer, the developer being 4-allyloxy-4?-hydroxydiphenylsulfone, and the heat-sensitive recording layer further comprising a compound represented by formula (I): wherein R1 is an unsubstituted aromatic group, or an aromatic group substituted with at least one member selected from the group consisting of a methyl group and a chlorine atom, and R2 is a divalent organic group.

Abstract: A thermally sensitive recording medium whose luster of printed part is excellent can be provided by a thermally sensitive recording medium of single layer or multi layers having at least a thermally sensitive recording layer that contains a colorless or pale colored electron donating leuco dye and an electron accepting color developing agent on a substrate comprising, containing a pigment whose aspect ratio is 30 or more in at least one layer formed on a substrate.

Abstract: Thermally developable materials that comprise a support have an antistatic backside layer that includes a quaternary ammonium salt. The same or different backside layer can also include another antistatic agent such as conductive metal particles or conductive polymers. These thermally developable materials include both thermographic and photothermographic materials that can be suitably imaged to provide images useful for medical diagnoses.

Abstract: The object of the present invention is to provide a thermoreversible recording medium which possesses not only such an excellent property that the electrostatic charge on the thermoreversible recording medium can be prevented and the curling of the thermoreversible recording medium caused by repeating heating for the printing and erasing of the thermoreversible recording medium can be also prevented, but also an excellent conveyability which is not affected by repeating the use of the thermoreversible recording medium and by an using condition thereof.

Abstract: The present invention provides a heat-sensitive recording material that comprises a support, a heat-sensitive recording layer comprising a leuco dye and a developer, and a protective layer principally comprising a pigment and a binder. The support, the heat-sensitive recording layer, and the protective layer are provided in this order. The protective layer comprises: (1) a pigment of secondary particles with an average particle diameter of 30 to 900 nm formed by aggregation of amorphous silica primary particles with a particle diameter of 3 to 70 nm; or (2) a pigment of secondary particles with an average particle diameter of 30 to 900 nm formed by aggregation of amorphous silica primary particles with a particle diameter of 3 to 70 nm, and a binder comprising acetoacetyl modified polyvinyl alcohol with a saponification degree of 90 to 100 mol % and a polymerization degree of 1900 to 5000.

Abstract: There is disclosed a composite label web and method of date coding, whether pre-printed color-coded labels can be overprinted in a hand held portable thermal labeler to enable a color relating to a selected day of the week to be highlighted and date-related information to be encoded.

Abstract: Disclosed is a heat-sensitive recording material comprising (a) a transparent film, (b) a heat-sensitive recording layer formed on one side of the transparent film, and containing an electron-donating compound, an electron-accepting compound, and a binder, (c) a protective layer formed on the heat-sensitive recording layer, and containing an aqueous resin as a primary component; and (d) a backside layer formed on the other side of the transparent film, and containing a pigment and a binder; the heat-sensitive recording material containing in the backside layer spherical resin particles having a mean volume particle diameter of 2 to 15 ?m in an amount of 0.2 to 5.0 mass % of the backside layer.

Abstract: The reversible thermosensitive recording medium according to the present invention comprises a support, a thermosensitive layer and a protective layer in order, the thermosensitive layer comprises an electron-donating coloring compound and an electron-accepting compound and reversibly changes the color depending on temperatures, and the protective layer comprises a reactive heterocyclic compound, and inorganic fine particles of which surface is at least partially treated into hydrophobic, alternatively the protective layer comprises inorganic fine particles of which number-average particle size is 100 nm or less and of which surface is at least partially coated with organic silane compounds.

Abstract: A thermally conductive material, a donor element including the material, a method of printing using the donor element, and a print assembly including the donor element are described, wherein the thermally conductive material includes at least two immiscible or incompatible organic polymers, or a block or graft copolymer, wherein the constituent homopolymer repeat units that form the copolymer are prepared from chemical species that would form mutually immiscible or incompatible polymers, and thermally conductive particles having a short axis of less than or equal to 0.2 microns.

Abstract: A flat sheet material for manufacturing leaf-like sheets for receiving information has at least one coating applied onto a first side of a substrate. Magnetically activatable particles are embedded in the at least one coating. The magnetically activatable particles have a grain size that is smaller than about 3 micrometers. The magnetically activatable particles are iron oxide arranged in a kaolin/SBR layer. A carbonless set can be made from the flat sheet material.

Abstract: A recording material comprising: a support; and (A) a recording layer capable of forming color due to application of at least one of heat and pressure thereto; and between the support and the recording layer, (i) a layer containing acetoacetyl denatured polyvinyl alcohol, partially saponified polyvinyl alcohol, and a film hardening agent, (ii) a layer containing acetoacetyl denatured polyvinyl alcohol and a film hardening agent, and (iii) a layer containing acetoacetyl denatured polyvinyl alcohol whose degree of polymerization is 1000 or more, or (B) between the support and the recording layer, at least one layer containing acetoacetyl denatured polyvinyl alcohol, partially saponified polyvinyl alcohol, and a film hardening agent, wherein the layer is coated with a coating solution whose viscosity is no more than 0.3 Pa·s at 40° C. by using a gravure roller.

Abstract: The present invention is the thermally sensitive recording medium comprising a thermally sensitive color developing layer containing colorless or pale colored basic leuco dye and a color developing agent as a main components on a substrate, wherein said thermally sensitive recording layer contains acrylic emulsion and colloidal silica, further contains at least one kind of diphenylsulfone bridgeable compound represented by general formula A as the color developing agent, wherein, X and Y can be different or same and indicates a saturated or an unsaturated liner or grafted hydrocarbon group of carbon number 1–12 which can possess an ether bond, or indicate, wherein, R indicates a methylene group or an ethylene group, T indicates a hydrogen atom or an alkyl group of carbon number 1–4, and R1–R6 independently indicate a halogen-atom, an alkyl group of carbon number 1–6, or an alkenyl group, further, m, n, p, q, r, t indicate an integer number of 0–4 and when are bigger than 2, R1–R6 can be different, an

Abstract: A thermosensitive recording material comprising a thermosensitive layer provided on a substrate, and the thermosensitive layer comprises as main ingredients a leuco dye and a developer to make colored state of said leuco dye when heated, wherein the developer is an oligomer composition obtained from the reaction of a polyvalent isocyanate compound represented by following Formula (I) with an aromatic amine represented by following Formula (II); where X represents a try- or more-valent group, a represents an integer numeral of 3 or more, b and c represent respectively integer numerals in the range of 0 to 5 and they satisfy a relation of b+c=1 to 5, Z represents hydrogen atom, alkyl group, allyl group or aryl group, and the aryl group may include condensed ling structure thereof, and d represents an integer numeral in the range of 0 to 4.

Abstract: The invention is directed to a transfer label material for image transfer, comprising a backing carrier material and a transfer layer, said transfer layer at least comprising an image layer, an adhesive layer and a pigmented layer between the adhesive layer and the image layer, said pigmented layer comprising a binder material, at least one white pigment and at least 0.1 wt. %, calculated on the basis of the pigmented layer, of aluminum powder (dry weight).

Abstract: Disclosed are a thermal recording material having a thermal recording layer containing an electron-donating dye precursor and an electron-accepting compound, wherein the thermal recording layer comprises an electron-accepting compound of the general formula (I), (each of R1 and R2 is a hydrogen atom or an alkyl group), and a specific aromatic phosphorus compound, and a thermal recording material wherein said thermal recording layer comprises the electron-accepting compound of the above general formula (I) and an undercoat layer formed on a substrate comprises an organic pigment having a specific morphological structure. The former thermal recording material is excellent particularly in thermal response as well as heat resistance and light resistance of a ground and images in storage, and the latter thermal recording material is excellent particularly in whiteness.

Abstract: The present invention provides a recording material comprising a support, a recording layer provided on the support, and at least one protective layer provided on the recording layer, wherein, the recording layer contains a coloring component A encapsulated in heat-responsive microcapsules, and a substantially colorless compound B, which is outside the heat-responsive microcapsules and has a coloring site that colors when reacted with the coloring component A, and wherein, at least one of the protective layer or a layer adjacent thereto comprises a layer containing titanium oxide.

Abstract: Disclosed are a heat-sensitive recording material comprising a support, a heat-sensitive recording layer comprising a leuco dye and a developer, and a protective layer comprising a resin in the form of a film, the protective layer being obtained by coating the heat-sensitive recording layer with a protective layer aqueous coating composition comprising at least resin particles having a core/shell structure and then drying the coating, wherein the resin in the form of a film formed of said resin particles having a core/shell structure is present in an amount of not less than 80 mass % of the total solids of the protective layer, and the protective layer having a gloss (based on JIS P 8142) of not less than 80%, a heat-sensitive recording material comprising an interlayer between the heat-sensitive recording layer and the support of the heat-sensitive recording material, as well as processes for preparing these heat-sensitive recording materials.

Abstract: A heat-responsive-discoloring coloring composition, which is colored at a temperature lower than its discoloration initiation temperature (T) of 60° C. to 200° C.; which is substantially discolored at a temperature equal to or higher than the discoloration initiation temperature (T); and which does not recover its color once discolored, even when its temperature is lowered to a temperature lower than the discoloration initiation temperature (T) again, the heat-responsive-discoloring coloring composition comprising a polymer having a glass transition temperature (Tg) of 60° C. to 200° C.

Abstract: A thermosensitive recording material comprising a support such as paper bearing thereon a first layer comprising multivoided particles and, disposed on the first layer, a thermosensitive recording layer is provided.

Abstract: A metallic luster tone thermochromic laminate member 1, which comprises a laminate of a metallic luster layer 2 containing a metallic luster pigment prepared by coating the surface of a synthetic mica or thin section aluminum oxide with a metal oxide and a reversible thermochromic layer 3 containing a thermochromic composition comprising an electron-donating color-forming organic compound, an electron-accepting compound and an organic compound medium in which color reactions of both compounds take place reversibly. The metallic luster tone thermochromic laminate member can visualize metallic luster colors having glittering high brightness and distinct changes in color by its reversible thermochromic layer so that it can be used in versatile applications and developments.

Abstract: A thermosensitive recording material having a support, a thermosensitive recording layer containing a leuco dye and a color developer, and an intermediate layer interposed therebetween. The intermediate layer contains hollow particles having a hollowness of 60 to 98%, a maximum particle diameter (D100) of 5.0 to 10.0 &mgr;m and a ratio D100/D50 of the maximum particle diameter (D100) to the median volume equivalent particle diameter (D50) in the range of 1.5 to 3.0. The hollow particles may be composed of a crosslinked polymer of a chlorine-free vinyl monomer.

Abstract: A heat-sensitive recording material having a heat-sensitive recording layer on a substrate. An outermost layer from the substrate contains microparticle-aggregation particles. The microparticle-aggregation particles are preferably formed by silica microparticles, and the outermost layer is preferably a protective layer. The microparticle-aggregation particles have hardness such that soiling of a thermographic printing head is low, and softness such that wear of the thermographic printing head is low.

Abstract: A thermosensitive recording composition includes a leuco dye, a color developer containing 4,4′-bisphenol S, and a sensitizer containing 4-acetylbiphenyl. A thermosensitive recording material has a support and a thermosensitive recording layer which is provided on the support and contains the above-mentioned thermosensitive recording composition.

Abstract: A self-contained sheet for forming an image comprising a support, a first layer of microcapsules containing a color precursor of the electron donating type in a carrier liquid on the surface of the support, a layer of microspheres overlying the microcapsule layer, and a developer material present in at least one of the microcapsule layer or microsphere layer, wherein the developer material can react with the color precursor to form a visible image when the color precursor is released from the microcapsules.

Abstract: The invention features core-shell microsphere compositions, hollow polymeric microspheres, and methods for making the microspheres. The microspheres are characterized as having a polymeric shell with consistent shell thickness.

Abstract: A method for printing carbonless forms on an electrostatic printer or copier and carbonless forms for use in electrostatic printers or copiers are disclosed. A method of printing carbonless forms comprises providing a recording sheet comprising a substrate, the substrate being coated with a coated front (CF) coating comprising a developer, hollow microspheres and a binder composition, wherein the binder composition comprises polyvinyl alcohol and printing on the recording sheet with an electrostatic printer or copier.

Abstract: A memo block in the present invention is composed by a pile of notepapers. In a proper section near the fore edge of each notepaper is provided with predetermined designs or advertisement. The fore surface of the memo block is cut by a predetermined mode from the first page to the bottom page so as to form a wavy surface, and then the fore surface is pushed backward by a paper-regulating machine to form a proper slope. The rear surface of the memo block is also form a same slope with that of the fore surface. The rear outward slope is cut off to be a vertical plane surface, and then the rear plane surface is glued to form a spine. Thus, the designs or advertisement of he memo block can gradually change paper by paper and have the genuinely vivid and solid advertising effects because of the wavy and oblique fore surface.

Abstract: A label-printing process for obtaining a desired optical density and a desired color tone with a substantially light-insensitive elongated imaging material comprising: selecting an elongated imaging material, the selected elongated imaging material having a support and a thermosensitive element; supplying image data to a processing unit of a thermal printer including a printhead having energizable heating elements arranged in a column C; converting the image data which are not zero into at least one activation pulse per pixel to be printed; energizing the heating elements printing-line by printing-line adjacent to the selected substantially light-insensitive elongated imaging material thereby producing an image; transporting the imaging material past and adjacent to the printhead in a transport direction with a transport system; forming an image dot with a heat energy of 50 to 200 mJ/mm2 of heating element surface area; wherein the thermosensitive element contains a substantially light-insensitive orga

Abstract: The present invention provides a recording material comprising a substrate, a heat-sensitive layer formed on the substrate by a coating liquid containing (1) microcapsules containing a colorless or light-colored electron-donative dye precursor and (2) a dispersion of solids comprising color developers, and a protective layer formed on the heat-sensitive layer, wherein the dispersion of solids comprising color developers is a dispersion prepared by co-dispersing at least three color developers including at least one solid color developer, preferably a water-soluble color developer, in the form of solid particles and at least one amorphous color developer together with a water-soluble polymer, and wherein the solid particles of the color developers contained in the dispersion have particle diameters in the range of from 0.3 to 0.5 .mu.m and the haze of the heat-sensitive recording material is 55% or less.

Abstract: Thermally-imageable articles which allow verification of the genuineness of the articles, and methods of producing such articles are disclosed. The thermally-imageable articles includes a substrate and a light transmissive/reflective platy pigment in or on one or both surfaces of the article. The article may be analyzed or inspected to determine the presence and nature of the platy pigment and accordingly, the authenticity of the article. When viewed from different incident angles, the pigment produces a unique pearlescent, color shift, or iridescent type effect.

Abstract: The present invention provides a heat-sensitive recording material high in sensitivity and whiteness. That is, a heat-sensitive recording material which comprises a support and a recording layer between which an intermediate layer is provided and which is of high sensitivity could be obtained by using a latex having a temperature-sensitive gelling characteristic as a binder of the intermediate layer and by adjusting pH of a coating solution of the intermediate layer to 7.0 or more, and adjusting temperature of the coating solution at the time of preparation and coating to a temperature lower at least 20.degree. C. than the gelling temperature of the temperature-sensitive latex. Furthermore, a heat-sensitive recording material of high whiteness and very high printability could be obtained by adding a non-crosslinking type acrylic alkali thickening agent to the coating solution of the intermediate layer.

Abstract: Thermosensitive recording materials, such as thermal papers, with near infrared flourescent (NIRF) compounds as a security feature and methods for preparing thermal papers with NIRF compounds as a security measure, wherein the NIRF compounds do not react with the reactive components of the thermosensitive recording materials and are preferably shielded from contact with ambient air.

Abstract: A thermosensitive recording label including a substrate, a thermosensitive coloring layer formed on one side of the substrate, and a thermosensitive adhesive layer which is formed on the opposite side of the substrate and which includes a thermoplastic resin and a tack applying agent and which is usually non-adhesive and becomes adhesive when activated by heat, wherein the thermoplastic resin includes a natural rubber which is graft-copolymerized with a vinyl monomer.

Abstract: Disclosed in a heat-sensitive recording material comprising a substrate, a heat-sensitive recording layer disposed on the substrate and a protective layer disposed on the heat-sensitive recording layer, wherein the protective layer contains a pigment containing particles having an average particle diameter of 0.300 .mu.m or less in a portion of 50% by volume in the total volume of the particles as measured by a laser diffraction method and containing 3% or less of particles having a diameter of 1.0 .mu.m or more in a total amount of particles and the surface of the protective layer has a central line value Ra of a surface roughness of 0.3 .mu.m or less in a frequency component having a roughness pitch of 2 to 10 .mu.m of the surface roughness in the entire frequency range.

Abstract: A thermal-sensitive color developing material containing metal particles and a matrix substance where the size of the metal particles irreversibly increase at room temperature due to cohesion, and a thermal-sensitive element using the thermal-sensitive color developing material are disclosed. The thermal-sensitive color developing material irreversibly develops a color at a temperature of room temperature or higher.

Abstract: Disclosed is a reversible heat-sensitive recording material having a support and a reversible heat-sensitive recording layer provided at least one surface of the support and containing a colorless or slightly colored leuco dye and a reversible color developing agent capable of causing a reversible change in color density of the dye due to the difference in cooling rate after heating, which may further have a protective layer provided on the reversible heat-sensitive recording layer, and an anchor layer provided between the support and the reversible heat-sensitive recording layer, characterized in that at least one of the reversible heat-sensitive recording layer, the protective layer and the anchor layer contains a pigment subjected to a surface-modifying treatment.

Abstract: A reversible thermosensitive recording medium has a support, and a reversible thermosensitive recording layer, an intermediate layer and a protective layer which are successively overlaid on the support in this order, the recording layer containing a reversible thermosensitive coloring composition which includes an electron-donating coloring compound and an electron-accepting compound and is capable of assuming a colored state and/or a decolorized state by controlling the thermal energy applied to the coloring composition or the cooling rate of the coloring composition after the application of thermal energy thereto, and the intermediate layer and/or protective layer containing an inorganic pigment material with an average particle diameter of 100 nm or less.

Abstract: A thermosensitive recording medium having a support, a thermosensitive layer provided on the support, and a protecting layer provided on the thermosensitive layer and containing montan wax particles having an average particle diameter AD of not greater than 1.5 .mu.m and such a particle size distribution that at least 99% of the montan wax particles have a particle diameter of not greater than (AD+0.5 .mu.m). The protecting layer is obtained by drying a layer of an aqueous dispersion containing an aqueous emulsion of the montan wax particles.

Abstract: A reversible thermal-recording composite capable of exerting great performance for repeated use and yielding good printing quality at higher coloring concentrations is provided, wherein the coloring and fading reaction of a leuco dye with a coloring and fading agent is utilized and a specific coloring and fading agent, a specific inorganic filler and a specific amine compound and the like are used in the thermal-recording layer, and a thermal-recording sheet and a thermal-recording card using the same are also provided.

Abstract: A reversible heat-sensitive recording medium comprising a support; a heat-sensitive layer formed on top of the support, which layer comprises a resin matrix and a low molecular weight organic compound dispersed in said matrix, and a transparency of which is reversibly changeable depending on the temperature, in which a conductive powder is contained in at least a part of the support and heat-sensitive layer, which medium has a low-surface resistivity and excellent anti-static properties.

Abstract: A transparent thermosensitive recording material is provided which includes a transparent substrate, a thermosensitive recording layer formed on the substrate, and a protective layer which is formed on the thermosensitive recording layer and including a resin, wherein the protective layer has a microscopically rough surface with projections and pits in which a 95% confidence interval of a distribution of a number of sections of projections in a depth direction of the surface of the protective layer is less than about 0.5 .mu.m and a maximum number of the sections in the distribution of the number of sections is from about 100 to about 500 per 1000 .mu.m.sup.2 when the surface of the protective layer is horizontally cut 41 times at equally spaced intervals between a top of a maximum projection of the surface and a bottom of a maximum pit of the surface of the protective layer.

Abstract: A thermosensitive recording material comprises a thermosensitive recording layer comprising a binder resin, and a leuco dye and a color developer capable of inducing color formation in the leuco dye upon application of heat thereto, and a protective layer on the said thermosensitive recording layer in which layer a spherical filler and irregular shape filler is employed.

Abstract: A developer sheet for use in pressure-sensitive carbonless paper which incorporates a hollow microspherical plastic pigment.

Abstract: A thermosensitive recording medium having a support, a thermosensitive layer provided on the support and capable of forming a color image when heated imagewise, and a protecting layer provided on the thermosensitive layer and containing a pigment and a core-shell resin obtained by polymerizing a vinyl monomer in an emulsion containing acrylonitrile-containing polymer seeds such that a polymer of the vinyl monomer is copolymerized on each of the seeds to form a shell surrounding a core of the seed, wherein the core-shell resin meets with at least one of the following criteria (a) and (b):(a) the glass transition point Tg of the core is at least 15.degree. C.; and(b) the glass transition point Tg of the shell is at least 150.degree. C. The vinyl monomer contains acrylamide and/or methacrylamide.

Abstract: A security document is provided containing a color-forming composition having an insulating material therein which allows the document to be passed through heated printing devices such as laser printers without the problem of premature color development. The color-forming composition includes a mixture of a color former, a color developer, and an insulating material. In a preferred embodiment, a toner adhesion-enhancing composition containing an insulating material is applied over the color-forming composition. The security document may be used to provide an authentication feature and/or an indication of attempted alterations from the use of solvents, heat or abrasion.

Abstract: A recording material for producing high contrast images comprising at least one thermosensitive element, comprising a layer comprising a substantially light-insensitive organic silver salt in at least one binder and in thermal working relationship therewith an organic reducing agent therefor, on a support, characterized in that the recording material is light-insensitive and the layer contains colloidal particles comprising silicon dioxide at a coating weight given by expression (1): ##EQU1## wherein B represents the total weight of all binders in the layer, AGOS represents the total weight of organic silver salt in the layer and S represents the weight of the colloidal particles in the layer; and wherein a protective layer is optionally applied to the thermosensitive element being thereby an outermost layer of the recording material.

Abstract: A method for protecting against duplication of a document with a color copier comprises providing a background color on a document having an average reflectance value and printing on the background with a contrast color having a spectral characteristic which modulates the average reflectance value by no more than 5% and has an average value equal to the average reflectance value. The contrast color is printed with a printing medium that allows activation by a rub and reveal action or by application of intense light.