Abstract: A thermal recording material having a support and, formed thereon, a thermal coloring layer containing an electron donating colorless dye and an electron accepting compound, wherein the electron accepting compound comprises 4-hydroxybenzenesulfoneanilide and the support comprises a used paper pulp as a primary component; the thermal recording material which further comprises at least one of calcium carbonate of calcite type, amorphous silica and aluminum hydroxide as an inorganic pigment; and the thermal recording material wherein the electron donating colorless dye comprises a specific colorless dye and the recording material is formed through the use of a liquid pigment dispersion having a pH of 7 to 10.

Abstract: The present invention relates to a heat-sensitive recording material including a support containing a paper substrate, and a recording layer, in which a base paper of the support is made from pulp slurry containing at least (1) one kind of polyacrylamide or cationic starch and (2) at least one kind of alkyl ketene dimer and epoxydized fatty acid amide as a sizing agent, and is produced by coating or impregnating at least one face thereof with (3) at least one kind of softening agent. The softening agent is preferably a reaction product of a polyamine and a fatty acid having 8 to 40 carbon atoms, a polyhydric alcohol type nonionic surfactant, a cationic surfactant, or a polyamine-based compound.

Abstract: A heat-sensitive recording material comprising, on a support, a heat-sensitive recording layer and a protective layer is provided. The protective layer contains an acetylene glycol derivative represented by the following formula (1) in an amount of 2% by mass or more, a water-insoluble dispersion in an amount of 5% by mass or more, and a water-insoluble organic material, as an emulsion, in an amount of 5% by mass or more, all based on the solids content in the protective layer. In formula (1), R1 to R4 each independently represent a hydrogen atom, a branched, linear or cyclic substituted or unsubstituted alkyl group having 1 to 8 carbon atoms, or a substituted or unsubstituted aryl group having 6 to 10 carbon atoms. R5 to R8 each independently represent a hydrogen atom or a methyl group. n and m each independently represent an integer of 0 to 50.

Abstract: An aqueous resin composition used to form an undercoat layer of a thermosensitive recording medium, comprising a water-repellent filler (A) having a water-repellent surface, which is composed of at least one of an organosilicon compound and an organofluorine compound, and an aqueous solution or water dispersion of a film-forming resin (B), which contains the water-repellent filler (A).

Abstract: An aqueous resin composition used to form an undercoat layer of a thermosensitive recording medium, comprising a water-repellent filler (A) having a water-repellent surface, which is composed of at least one of an organosilicon compound and an organofluorine compound, and an aqueous solution or water dispersion of a film-forming resin (B), which contains the water-repellent filler (A).

Abstract: A heat sensitive recording material comprises a heat sensitive color forming layer formed on a support and containing a color forming compound and a color developing compound in reaction with the color forming compound to develop a color; an intermediate layer formed on the heat sensitive color forming layer; and a protective layer formed on the intermediate layer and comprising a UV-ray curable resin. The intermediate layer is formed of a composition containing an acrylic emulsion and a polyvinyl alcohol.

Abstract: A linerless label system comprising pressure adhesive coating, release coating and thermal imaging coating is described. The thermal imaging coating contains as one of its components the compounds of the formula (I) wherein R1 and R2 are selected from methyl, ethyl, aryl, aryl substituted with methyl, ethyl, methoxy, ethoxy or halogen, benzyl or benzyl with phenyl substituted with methyl, ethyl, methoxy, ethoxy or halogen, R3,R4,R5 and R6 are selected from hydrogen, halogen, methyl, ethyl, methoxy, ethoxy, phenyl, R7 and R8 are each independently selected from methyl or ethyl, R9 is selected from hydrogen, methoxy or ethoxy, R10 is selected from hydrogen, dimethylamino or diethylamino, R11 is methyl. The imaged linerless label according to the invention has been a bar reflectance of less than 20 at 670 nanometers, a print control contrast signal of at least 80 and a BNL background of at least 75%.

Abstract: (B) A thermosensitive recording material comprises a thermosensitive recording layer containing an electron-donating colorless dye, an electron-accepting compound which develops color upon a reaction with the electron-donating colorless dye and a sensitizer, wherein the thermosensitive recording material satisfies at least one of the following conditions (1) to (3). (1) An image density when thermal printing is performed with a printing energy is 1.20 or more, and the thermosensitive recording material is used for a recording device having a printing speed of 10 cm/sec or more. (2) An image density after the thermosensitive recording material is brought into contact with a heat source of 70° C. for 5 seconds is 0.15 or less, and the sensitizer is 2-benzyloxynaphthalene or the like.

Abstract: The present invention provides a means to produce an image in gray scale on a film using direct thermal imaging, and preferably near infrared direct thermal imaging. The present invention provides a multi-layered, laminated, non-cavitated film that has proper surface characteristics and heat transfer properties by virtue of the proper combination of polymeric layers and coatings, in particular, the active direct thermal coating, and topcoat which produce direct thermal imaging with gray scale. Such a film may be used for temporary personal identification devices, for instance, hospital wristbands and backstage passes, and may incorporate bar code data, photographs as well as other pertinent data.

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: A thermosensitive recording material is provided having improved resistance to heat and chemicals, and having improved sensitivity to image formation while minimizing background coloring, wherein the thermosensitive recording material has a substrate, on which is a thermosensitive recording layer containing a leuco dye, a developer of formula (I) and at least two sensitizers, the two sensitizers being 4-hydroxy-4?-allyloxy diphenylsulfone and 4,4?-diallyloxy diphenylsulfone.

Abstract: The present invention aims to provide a recording material support having superior excellent surface smoothness and water resistance compared to the related art, to a process for efficiently manufacturing this recording material support, to a recording material which can form an image having excellent quality and gloss using this recording material support, and to process for image formation using this recording material. For this purpose, the recording material support comprising at least raw paper satisfies at least one condition selected from the Cobb size (30 seconds) of the surface on the side provided with the image-forming layer of the support, Oken type smoothness, Stökigt sizing degree, central square average roughness (SRa) and variation amount (?SRa) of SRa.

Abstract: A thermal recording material including a substrate; a thermal coloring layer which is located overlying the substrate and which includes a leuco dye and a developer for coloring the leuco dye upon application of heat; and a protective layer which is located overlying the thermal coloring layer and which includes a binder resin, a crosslinking agent and a filler, wherein the binder resin in the protective layer includes a polyvinyl alcohol having a silanol group, and the crosslinking agent includes a zirconium compound of lactic acid.

Abstract: Non-photosensitive direct thermographic materials have a support and thermally sensitive imaging layer(s) and an outermost “protective” layer comprising: (a) a solid polymer derived from one or more olefins and from one or more ethylenically unsaturated polymerizable carboxylic acids or esters or anhydrides thereof, and (b) a branched ?-olefin polymer, and (c) optionally, an additional wax.

Abstract: The present invention provides a thermal recording material comprising a plurality of layers including at least a thermal recording layer on a support that is characterized in that an intermediate layer composed of gelatin as a binder is provided between at least one pair of two adjacent layers of the plurality of layers. Further, the steps for forming the thermal recording material by coating and drying the respective coating liquids for forming each layer that are characterized in that the drying process of the intermediate layer is performed while controlling wet membrane surface temperature at no higher than 35° C.

Abstract: A heat-sensitive recording sheet is formed as a laminate and includes at least a first and a second web material. The first web material has a substrate of paper with a watermark and the second web material has at least a substrate and a heat-sensitive recording layer.

Abstract: The invention relates to security paper (1) including at least one zone (2; 3) that reacts with nonpolar solvents. The paper also includes a barrier (4) that is impermeable to nonpolar solvents between a first outside face (10) of the security paper and the zone (2; 3) that reacts with the solvents.

Abstract: A method for recording and erasure of images using a rewritable thermal label of the non-contact type which enables complete elimination of residual images after the erasure and repeated rewriting. The absorptivity of laser light used for the recording with the surface of the label is 50% or greater, the laser light irradiating the surface of the label for the recording has a wavelength of 700 to 1,500 nm and an amount of energy of irradiation of 5.0 to 15.0 mJ/mm2, the product of the amount of energy of irradiation of the laser light and the absorptivity of the laser light during the recording is 3.0 to 14.0 mJ/mm2, and the product of the amount of energy of irradiation of the laser light and the absorptivity of the laser light with the surface of the label during the erasure is 1.1 to 3.0 times as great as the corresponding product during the recording.

Abstract: There are described novel rhodamine dye compounds and imaging members and imaging methods, including thermal imaging members and imaging methods, utilizing the compounds. The dye compounds exhibit a first color when in the crystalline form and a second color, different from the first color, when in the liquid, amorphous form.

Abstract: The invention relates to a thermosensitive recording material, comprising a substrate (1), a thermosensitive recording layer (4) containing a colour former and colour acceptors, a protective layer (5) configured on the recording layer, whereby a coat (6) that covers the surface and is locally delimited is printed onto the protective layer. The invention also relates to the use of the inventive recording material as a ticket.

Abstract: The present invention provides an emulsion for thermal recording material to be used as the resin component of a protective layer constituting a thermal recording material, characterized by comprising a copolymer resin (A) prepared by copolymerizing (a) methacrylamide with (b) a vinyl monomer having a carboxyl group and resin particles (B) prepared by polymerizing (c) a vinyl monomer, with the resin (A) distributed substantially on the surfaces of the resin particles (B).

Abstract: A translucent web-type recording material includes a substrate, a recording layer for recording data on at least one side, and a pigmented intermediate layer having regions of different thickness to form markings. The pigmented layer is arranged between the substrate and the recording layer.

Abstract: An information recording-displaying card, includes: a core sheet; and an over sheet bonded to the core sheet, including: a support including an amorphous polyester resin, and a reversible thermosensitive recording layer disposed on the support, including: an electron-donating coloring compound, and an electron-accepting compound. The reversible thermosensitive recording layer is capable of relatively forming a coloring state and a decolorizing state, with a difference in at least one of heating temperature, and cooling rate after heating. The over sheet is embossable in an upper portion thereof, functions as an image displaying section, and meets the following condition (A) and condition (B): (A) (the over sheet's upper limit temperature for erasing ?30° C.)?(temperature of a storage elasticity E? (1.0 E+08) Pa)?200° C., and (B) 1.0 E+04 Pa?(the storage elasticity E? of the over sheet at 180° C.)?5.0 E+07 Pa.

Abstract: An information recording-displaying card, includes: core sheet; and over sheet bonded to core sheet, including: a support including an amorphous polyester resin, and a reversible thermosensitive recording layer on the support, including: an electron-donating coloring compound, and an electron-accepting compound. The reversible thermosensitive recording layer is capable of forming coloring state and decolorizing state, with difference in at least one of the following: heating temperature, and cooling rate after heating. The over sheet is embossable in upper portion thereof, functions as image displaying section, and meets the following conditions (A), (B) and (C): (A) (over sheet's upper limit temperature for erasing?30° C.)>(over sheet's temperature of storage elasticity E? (1.0 E+08) Pa), (B) 10 ?m or less of surface waviness WCM, and (C) 1.0 E+02 Pa?(storage elasticity E? of reversible thermosensitive over sheet at 180° C.)?5.0 E+07 Pa.

Abstract: A rewritable thermal label of the non-contact type which comprises an anchor coat layer comprising a crosslinked resin, a heat-sensitive color development layer and a light absorption and photo-thermal conversion layer which are laminated on one face of a substrate successively, the anchor coat layer being placed next to the substrate, and an adhesive layer placed on the other face of the substrate and allows recording and erasure of information repeatedly in accordance with the non-contact method; and a method for using a rewritable thermal label of the non-contact type which comprises recording and erasing information repeatedly in accordance with the non-contact method on the rewritable thermal label which remains attached to an adherend. Information can be recorded and erased repeatedly on the label which remains attached to the adherend and the label can be recycled together with the adherend.

Abstract: A label sheet for electrophotographic process is composed of a label body in which an adhesive layer is formed on the back surface of a label base and a separator that is tentatively bonded to the label body with the adhesive layer interposed in between so as to be peelable from the label body. Both of the label base and a separator base are made of heat-resistant resin film. A toner accepting layer contains a release agent and has surface resistivity of 1×1014 ?/? or more. An antistatic treatment layer has surface resistivity of 1×108 to 1×1012 ?/?.

Abstract: Disclosed are a novel electron-accepting compound which is a benzenesulfonamide derivative having a specific structure, a heat-sensitive recording material having a heat-sensitive recording layer containing the above electron-accepting compound, a heat-sensitive recording material having a heat-sensitive recording layer containing at least two specific benzenesulfonamide derivatives, a heat-sensitive recording material having a heat-sensitive recording layer containing a benzenesulfonamide derivative and a diphenylsulfone derivatives a heat-sensitive recording material having a heat-sensitive recording layer containing a specific benzenesulfonamide derivative and an ultraviolet absorbent or an aromatic isocyanate compound, and a heat-sensitive recording material having a substrate containing a recycled paper pulp or a non-wood pulp.

Abstract: A heat-sensitive recording material including at least a heat-sensitive recording layer, a light transmittance adjusting layer and a heat resistant protective layer on a support, wherein oxygen permeability of the light transmittance adjusting layer is 0.8 or less, and the light transmittance adjusting layer includes a polyvinyl alcohol having a saponification rate of 90 mol % or more.

Abstract: In the invention, a recording material containing a support having a recording layer thereon capable of forming a color by the application of heat and/or pressure is provided, and the material further contains at least one layer containing acetoacetyl-modified polyvinyl alcohol and a hardening agent between the support and the recording layer. The hardening agent is a compound having, in one molecule thereof, two or more vinyl groups adjacent to a substituent having a positive Hammett's substituent constant ?p.

Abstract: An UV-ray shielding layer and a moisture barrier layer are formed on edges of a recording paper which includes thermosensitive coloring layers having a fixing property to a ultraviolet ray. Another UV-ray shielding layer and another moisture barrier layer are formed in an opposite side of the support to the thermosensitive coloring layer. The UV-ray shielding layers prevent the ultraviolet ray from penetrating through the edge and the support and from reaching the thermosensitive coloring layers. Further, the moisture barrier layers prevent the thermosensitive coloring layer from absorbing moisture from air. Images are formed in the recording paper adequately without influence of the moisture and the ultraviolet ray during being stocked.

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 which comprises at least (a) a support, (b) a heat-sensitive recording layer formed on at least one side of the support and containing an electron-donating compound and an electron-accepting compound and (c) a protective layer, the protective layer being an outermost layer provided by being formed on a smooth-surfaced substrate and removing the smooth-surfaced substrate, and the protective layer surface having a distinctness of image (according to JIS K 7105-1981) of at least 75% (slit width 2 mm), as well as a process for preparing the heat-sensitive recording material.

Abstract: A thermosensitive recording material having at least a thermosensitive recording layer on one surface of a support and a back coat layer on the other surface of the support, wherein the black coat layer includes multiple layers, and an outermost layer of the back coat layer furthest from the support contains polyvinyl alcohol, an inorganic stratiform compound, and an inorganic pigment. According to the thermosensitive recording material curling caused by a change in environment or by application of heat during recording can be prevented and a coefficient of friction of a back coat layer can be regulated to within a predetermined range.

Abstract: Disclosed are a paper support as well as a recording paper comprising the paper support and as formed thereon a recording layer, particularly a heat-sensitive recording layer, a transfer receiving layer for thermal fusion transfer recording or sublimation transfer recording or an ink receiving layer for ink-jet recording, the paper support having a security element embedded therein, the security element being a thread-shpaed or ribbon-shaped security element, and the paper support having a thickness which is at least 3 times the diameter of the thread-shaped security element or at least 3 times the thickness of the ribbon-shaped security element.

Abstract: Thermosensitive recording materials such as thermal paper have printed indicia of high quality on the back thereof printed on a backcoating. This backcoating also incorporates an optically variable compound which provides a security feature.

Abstract: A heat-sensitive recording material including, on a support, a heat-sensitive color-developable layer containing an electron-donating colorless dye and an electron-accepting compound, wherein the electron-accepting compound contains a compound represented by R1—Ph—SO2R2, and an adhesive strength when an adhesive sheet such as a revenue stamp is affixed to a recording face of a heat-sensitive recording paper made of the heat-sensitive recording material is larger than a given value, and a center line average roughness Ra75 of the heat-sensitive recording face is 2.0 ?m or less.

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 reversible thermosensitive recording medium comprising an concealing layer provided between a reversible thermosensitive recording layer which is reversibly changed in its color by heat and a photo-thermal conversion layer which absorbs light with generating heat, wherein the concealing layer has an optical characteristic that the ratio of a light absorptivity of light having 555 nm wavelength, in comparison with a light absorptivity of laser light wavelength, is 80% or less. This reversible thermosensitive recording medium has a concealing layer to conceal the color of the photo-thermal conversion layer, thereby the visibility and the contrast of the obtained images are significantly improved, further more, durability in repeated used is also significantly improved.

Abstract: The present invention provides a recording material including a support having disposed thereon a recording layer that contains a diazo compound and a compound represented by formula (1): 1

Abstract: Thermosensitive recording materials such as thermal paper have printed indicia of high quality on the back thereof printed on a backcoating. This backcoating also incorporates an optically variable compound which provides a security feature.

Abstract: Thermosensitive recording materials such as thermal paper have printed indicia of high quality on the back thereof printed on a backcoating. This backcoating also incorporates an optically variable compound which provides a security feature.

Abstract: A thermal recording material having a thermal color-forming layer which contains an electron-donating leuco-dye and an electron-receiving compound, and a protective layer formed in that order on a support. The protective layer of the material contains an inorganic dye and at least one of an amide-denatured polyvinyl alcohol and a diacetone-denatured polyvinyl alcohol.

Abstract: A heat-sensitive recording material and a recording process. The heat-sensitive recording material is excellent in head-matching property and has a good coating surface without coating failure. The heat-sensitive recording material has, on a support, a heat-sensitive recording layer, a protective layer and other layers as necessary. The protective layer contains a specific aliphatic compound derivative having at least a —CONH— structure and/or a water-soluble polymer having a specific repeating unit.

Abstract: Disclosed is a heat-sensitive recording material comprising a support and a heat-sensitive recording layer formed on the support and containing a leuco dye and a developer, the developer being N-p-toluenesulfonyl-N′-3-(p-toluenesulfonyloxy)phenylurea, and the heat-sensitive recording layer containing (a) at least one fluoran-based leuco dye with a melting point of 190 to 230° C. and/or (b) at least one pigment selected from the group consisting of aluminum hydroxide, amorphous silica, kaolin and talc.

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 heat sensitive recording material includes a support having successively disposed thereon at least a heat sensitive recording layer and a protective layer, with the protective layer containing an ammonium salt of alkylsulfosuccinic acid.

Abstract: A reversible thermosensitive recording medium comprising at least a reversible thermosensitive recording layer provided on a supporting substrate and, a protective layer provided on the recording layer, wherein the recording layer is arranged so as to develop a first color therein when it is heated to a specific temperature level between a second temperature and a third temperature which is higher than the second temperature and then cooled to a first temperature level between normal temperature and the second temperature which is higher than the normal temperature, while so as to develop a second color therein when it is heated to another temperature level more than a fourth temperature which is higher than the third temperature and then cooled to a particular temperature which is lower than the first temperature, and the protective layer contains at least a lubricant showing the melting point ranging from higher than or equal to the first temperature to lower than or equal to the second temperature and has

Abstract: A heat-sensitive recording material comprising a heat-sensitive recording layer and a protective layer on a support, wherein the protective layer contains an acetylene glycol represented by the following formula (1): Wherein; R1 to R4 respectively represents a hydrogen atom, a branched, straight-chain or cyclic unsubstituted or substituted alkyl group having 1 to 8 carbon atoms or an unsubstituted or substituted aryl group having 6 to 10 carbon atoms; R5 to R8 respectively represents a hydrogen atom or a methyl group; and n and m independently denotes an integer from 0 to 50.

Abstract: To provide an image recording method and apparatus that can record and display an image of free pattern without forming the complex wirings in an electrochromic material, and to reduce the manufacturing costs of the image recording apparatus employing the EC material. A recording sheet 7 having a coloring layer made of an electrochromic material and an electrolytic layer with an increasing electrical conductivity in a specific temperature range is employed, and a recording head 13 with a plurality of heating elements arranged in a linear direction is moved relative to the surface of the recording sheet 7 in the direction orthogonal to the linear direction while at the same time a voltage is applied to the front and back faces of the recording sheet 7, thereby selectively heating the heating elements 11. Thereby, a coloring reaction is caused only in a part where heat is applied by the heating elements of the recording sheet 7 and voltage is applied to form an image on the recording sheet 7.

Abstract: The present invention relates to an image element for dual-sided imaging. The image element may include a substrate having first and second surfaces, a first coating, and a second coating. Generally, the first coating is applied to the first surface, where the coating includes a first imaging material for creating, in situ, a first image; and the second coating is applied to the second surface, where the coating includes a second imaging material for creating, in situ, a second image.