Abstract: In the process for microencapsulating a hydrophobic color forming substance from an aqueous emulsion thereof with membrane forming materials including an aromatic hydroxy compound, urea and formaldehyde, when the polymerization of the components, is carried out in the presence of an amino acid the resulting microcapsules give a self-contained pressure sensitive recording paper having almost no stain.

Abstract: A desensitizer composition for color developing agents which color upon reaction with colorless compounds comprising an adduct of an amine represented by the following general formula (I) with one or more alkylene oxides, said one or more alkylene oxides comprising at least 40 mole % butylene oxide: ##STR1## wherein R represents a hydrogen atom or an alkyl group, m represents zero or an integer from 1 to 8, and n represents an integer from 1 to 12. A method of using the same is also disclosed.

Abstract: A heat-sensitive recording paper containing in its color-developing layer aluminum hydroxide as fillers and a colorless or pale-colored chromogenic dyestuff and a phenolic substance as chromogenic elements. This heat-sensitive recording paper incorporates high image density and very preferable recording aptitude with less abrasiveness and less residues accumulated even for long time recording.

Abstract: Pressure-sensitive transfer elements having a plastic film foundation carrying a frangible, complete-release pressure-transfer layer applied by means of a volatile coating vehicle and comprising a solid solution of a fluorescing dye in the resinous binder material of said layer. Such transfer elements are adapted to transfer solid images to the surface of a copy sheet, which images fluoresce under exposure to ultraviolet light and are automatically detectible when sensed on the imaged surface of the copy sheet but are not detectible when sensed through the obverse side of the copy sheet.

Abstract: Pressure-sensitive transfer ribbons of the squeeze-out or reusable type having a thin, flexible plastic film foundation having bonded thereto a microporous resinous ink layer containing pressure-exudable liquid ink and designed for use in high speed printing or impact machines in which the ribbon is moving during impact. The invention comprises the formation of a thin friction-reducing or slip-permitting layer of silicone polymer on the rear or impact surface of the film foundation in order to reduce the friction between the moving printing element and the moving film foundation and prevent grabbing of the film foundation and breakdown of the bond between the film foundation and the ink layer.

Abstract: A heat-sensitive transfer element comprising a foundation, a thermal color-developing layer provided on the front surface of the foundation and a hot-melt ink layer provided on the back surface of the foundation; the ink layer including a heat conductive material powder and a solid wax, and having a melt-transfer property a printed image to be formed on the thermal color-developing layer by the impression of a thermal head, and simultaneously the hot-melt ink being transferred to a copy sheet facing the transfer element at the hot-melt ink layer side, the duplicated image having good clarity and excellent durability being able to be prepared at a high speed on a thermal printer.

Abstract: This invention discloses a heat sensitive recording sheet which contains, as a developer, at least one of the compounds represented by the general formula ##STR1## where R represents hydrogen, an alkyl radical of from 1 to 12 carbon atoms, a cycloalkyl radical of from 3 to 10 carbon atoms, an aralkyl radical of from 7 to 10 carbon atoms, and a phenyl radical, and may be identical to or different from each other, n is zero, or an integer of 1 or 2.The heat sensitive recording sheet of this invention has a sharper rise in developed color density and is advantageous for its handling and storage as well as gives a developed color image having an excellent fastness to light and water resistance in addition to very little decrease in density of the developed color image with time.

Abstract: A multi-color thermo-sensitive recording material comprises two thermo-sensitive coloring layers capable of forming different colors respectively at different temperatures, which are formed one over the other on a support member, and a discoloring layer comprising a cross-linking type resin, which is disposed between the two thermo-sensitive coloring layers, and which is cross-linked in the course of the coating of the thermo-sensitive layers, without being dissolved into any of the two thermo-sensitive coloring layers.

Abstract: A pressure-sensitive or heat-sensitive recording material which contains in its color reactant system, as developer for the color former, at least one compound of the formula ##STR1## wherein X is the direct bond or ##STR2## each of R.sub.1, R.sub.2 and R.sub.3 independently is hydrogen or unsubstituted or substituted alkyl, aryl or aralkyl, or R.sub.1 and R.sub.3, together with the nitrogen atom to which they are attached, are a 5- or 6-membered heterocyclic radical, Q is carbon or an unsubstituted or substituted hydrocarbon radical, Y is halogen, and m is 1 to 3. The grouping --Q--Y.sub.m is preferably --C(Hal).sub.3, wherein Hal is halogen.

Abstract: A pressure-sensitive chromogenic copy system utilizing a color developer capable of reacting with a chromogen to form a color image, said color developer comprising sulfur, sulfonyl, or sulfone derivatives of substituted aromatic carboxylic acids, preferably hydroxybenzoic acids.

Abstract: Microcapsules containing water-insoluble liquid, of which wall membrane is urea-formaldehyde resin is produced by the addition of a water soluble organic acid, urea and formaldehyde to an emulsion of the liquid, which is made by a nonionic emulsifier and heating the emulsion to effect the polycondensation of urea and formaldehyde.

Abstract: Disclosed is a heat-sensitive recording paper comprising a colorless or pale-colored chromogenic substance and a phenolic substance for coloring the chromogenic substance by heating, in which amorphous synthetic aluminum silicate and/or amorphous synthetic magnesium silicate is incorporated in a recording layer.

Abstract: A metered film of a fluid coating composition (10) having solids suspended therein, such as a fluid composition containing rupturable microcapsules, is formed on a doctored gravure supply roll (12) and applied to a soft rubber applicator roll (20). The supply roll (12) transfers the metered coating composition (10) to an endless web (25) which is wrapped and tensioned therearound in substantially uncompressed contact, to transfer the metered coating composition uniformly and evenly to the web (25) without shearing the composition (10) when on the web (25) or mechanically pressing the solids therein into the web (25).

Abstract: A dry transfer system for transferring indicia to a receiving surface comprises a flexible but dimensionally stable carrier substrate with a film of cohesive, pliable and plastically deformable, indicium-forming material not more than 10 micrometers thick defining a preformed image and adhering to the front surface of the substrate. This surface is composed of a smooth material with adhesive properties such that without relying on adhesive the film can be released and transferred to a receiving surface in close contact, by a pressure transmitted through the substrate, but the film is retained on the carrier substrate in the absence of such pressure, in spite of close contact with the receiving surface.

Abstract: A color developing ink containing a phenolic resin or a metal salt of an aromatic carboxylic acid and an alcohol having from 10 to 20 carbon atoms.

Abstract: Carbonless imaging system containing transfer control agent to prevent undesirable back-transfer of image to transfer medium. The transfer control agent is selected from oxalic acid, phosphoric acid, or mixtures thereof. Transfer media and business forms are also described.

Abstract: A painted surface is applied to a piece of hardboard simultaneously while the board is being formed in a press. A heat-resistant paint layer is coated onto a carrier, and the painted carrier is placed over a loose layer of exploded wood fibers in a heated press. The press applies pressure in excess of 400 psi and heat above 400.degree. F. to compact the wood fibers into an integral hardboard piece while the heat from the press simultaneously transfers the paint layer from the carrier and bonds it to a surface of the board. In one embodiment of the invention, the paint layer is a thermosetting resinous paint system, and the paint coat is sufficiently heat-resistant to remain in a hardened condition at or above the temperature at which the board is formed, thus forming a separate hardened paint layer on the surface of the board. The carrier can include an adherence coat which is heat-activated in the press to crosslink and bond the paint layer to the wood fibers.

Abstract: Novel pressure-sensitive manifold record material comprises paper coated on one side with an encapsulated solution of an alkali-sensitive color precursor such as phenolphthalein in a polar solvent and coated on the reverse side or on a separate sheet of paper with particles of a white alkaline pigment such as fluid energy milled lime. The sheets are assembled for manifold record material by stacking sheet material coated with encapsulated dye solution in face-to-face relationship with surfaces coated with alkaline pigment. Upon rupture of the capsules by printing pressure, a colored mark is formed on the surface containing the alkaline pigment particles.

Abstract: 3-Heteroaryl-3-(diphenylamino)phthalides useful as color formers in pressure-sensitive carbonless duplicating systems, thermal marking systems and hectographic copying systems are prepared by reacting 2-(heteroarylcarbonyl)benzoic acids with diphenylamines.

Abstract: A recording sheet for pressure-sensitive copying paper is produced by coating on a support a coating composition containing a water-soluble polyvalent metal salt and then a coating composition containing an alkali metal salt or an ammonium salt of an aromatic carboxylic acid.The recording sheet has excellent flatness and surface strength.

Abstract: A pressure-sensitive or heat-sensitive recording material which contains as color former in its color-forming system at least one substituted tris-aminophenylmethane compound of the general formula ##STR1## wherein R.sub.1 and R.sub.2, each independently of the other, represent hydrogen, lower alkyl, benzyl or phenyl, and the ringsA,B,D and E, each independently of the other, are unsubstituted or substituted by halogen, nitro, trifluoromethyl, lower alkyl, lower alkoxy or lower alkoxycarbonyl.

Abstract: A recording sheet capable of developing color when contacted with substantially colorless electron donating organic compounds functioning as a color former comprising a support having thereon a layer of a dispersion comprising (1) at least one salt of a polyvalent metal and an aromatic carboxylic acid, as a color developer, (2) at least one water-soluble polymer containing hydroxyl groups and (3) at least one of a melamine resin and a urea resin.

Abstract: Color-forming precursor compositions comprising a metal-complexing compound having a plurality of ligand groups and color-activating compositions comprising transition metal salts of oleophilic, organic acids are combined to form dark, permanent images on substrates. The methods and compositions are particularly useful for providing permanent fingerprints and other dermographs.

Abstract: A process for producing a pressure-sensitive copying paper which comprises forming a single-layer, free-fall, vertical curtain of a coating solution containing microcapsules as a main component and coating the coating solution onto a continuously running web across the single-layer, free-fall, vertical curtain and a process for producing a pressure-sensitive copying paper which comprises forming a dual-layer, free-fall, vertical curtain of a coating solution containing microcapsules as a main component and a coating solution containing a color developer as a main component and coating the coating solutions onto a continuously running web across the dual-layer, free-fall, vertical curtain.

Abstract: The present invention is directed to a kit and method for applying colored emblems to T-shirts and the like. The kit includes a transfer sheet having an outlined pattern thereon and a plurality of selected colored crayons formed of a heat transferable material, such as colored wax. The method of transferring a colored emblem to a T-shirt or the like includes the steps of applying the colored wax to the heat transfer sheet, positioning the heat transfer sheet on a T-shirt or the like, applying a heated intrument to the reverse side of the heat transfer sheet thereby transferring the colored wax to the T-shirt or the like. In another preferred embodiment, the transferable pattern is created from a manifold of a heat transfer sheet and a reversed or lift type copy sheet having a pressure transferable coating of heat transferable material thereon.

Abstract: Self-contained pressure-sensitive copying material having a coating which contains both a particulate mineral color-developing material and microcapsules enclosing a solution of a colorless color former which is reactive with the color developing material to produce a colored product, in which the particles of color developing material (e.g. an acidic clay) and optionally the microcapsules as well, are chemically treated with a protective agent to inhibit premature color development wherein the protective agent may be a self-crosslinkable polymer, such as an aminoplast polymer (e.g. a urea-formaldehyde or melamine-formaldehyde polymer), or an epichlorohydrin polymer (e.g. an aminoepichlorohydrin or an amide/aminoepichlorohydrin polymer), or an anionic surfactant (e.g.

Abstract: A process for separating a collated stack of carbonless copy paper sheets into form sets, which comprises pretreating the edge of the stack of sheets to be padded with water or an aqueous solution or dispersion, drying, applying an adhesive composition, drying and separating the unit sets.

Abstract: Pressure-sensitive microcapsules containing a solvent composition for use in carbonless copy systems for use in the absence of a halogenated solvent consisting essentially of a combination of a mono-alkyl naphthalene, wherein said alkyl group contains from 1 to 3 carbon atoms per molecule and a di-alkyl naphthalene, wherein each of said alkyl groups in said di-alkyl naphthalene contains from 2 to 4 carbon atoms per molecule, said mono-alkyl naphthalene being present in an amount between about 25 and about 40 percent by weight of the alkylated naphthalenes present in the solvent, and an isocyanate cross-linking agent.

Abstract: A self-adhering transfer material including one or more transferable design ayers, a lower adhesive layer and an intermediate layer of a polyester resin hardenable into a form-stable layer to act as a stabilizing and blocking layer.

Abstract: Pressure-sensitive recording or copying materials which contain, in their color reactant system, as developers for the color-forming agent, at least one mono- or poly-aldehyde which is electronegatively substituted, especially by halogen, and/or the reaction products thereof with an organic compound containing hydroxyl groups, or the precursors thereof.

Abstract: A process is described for continuously producing paper having a coating of dyestuff donor mass for reaction with a dyestuff acceptor mass. A web of the paper passes between a printing block surrounding a roller and a donor mass transfer roller whereby the paper is partially coated on one face with the donor mass. The transfer roller receives the donor mass from a system by which the viscosity of the mass is kept constant by a viscosity measuring device controlling the supply of solvent to the donor mass. The coated paper proceeds over a cooling roller, through a drying tunnel in which it is subjected to streams of hot air, and a further cooling roller. The dyestuff donor mass is thereby dried and consolidated and the paper continues through a printing device whereby text is printed onto the paper.

Abstract: A process is provided for producing a coating composition containing microcapsules having a hydrophilic core material for use in the manufacture of pressure-sensitive carbonless transfer papers comprising the following steps of preparing a hydrophobic emulsion component by dispersing an emulsifier in a radiation curable hydrophobic liquid, preparing a hydrophilic emulsion component by dispersing a first wall-forming material in a hydrophilic liquid containing at least one chromogenic material being soluble in the hydrophilic liquid, the first wall-forming material being reactive with a second wall-forming material to form a polymeric capsule wall, the polymeric capsule wall being substantially insoluble in the hydrophilic and the hydrophobic liquids and mixing the hydrophobic emulsion component with the hydrophilic emulsion component to form an emulsion containing droplets of the hydrophilic emulsion component dispersed in the hydrophobic emulsion component.

Abstract: A process for preparing an acceptor coated sheet used in a pressure sensitive copying system is disclosed. The pressure sensitive copying system utilizes a color forming reaction on a base sheet between the color former in the form of the oily core material encapsulated in microcapsules and the organic acceptor included in an acceptor coating layer formed on said base sheet. The acceptor coating layer includes as a binder a carboxylic latex having an oil swellability smaller than 65% in terms of the swelling with the oily core material. An ester of an organic acid is further included within the microcapsules and/or in the acceptor coating layer.

Abstract: A method and apparatus for the preparation of a manifold sheet having a relatively smooth, curl-free coating of a reactive composition on one side of a manifold sheet and a relatively smooth curl-free coating of rupturable encapsulated material on the opposite side of the manifold sheet, wherein the coatings are applied simultaneously to both sides of the manifold sheet in a single coating pass and without the application of pressure for smoothing either of the coatings.

Abstract: A chromogenic compound having the structural formula ##STR1## wherein R.sup.1 and R.sup.2 each represent an alkyl group;R.sup.3 and R.sup.4 each represent a hydrogen atom, a halogen atom, an alkyl group, a nitro group, an amino group, an acyl group, or a carboalkoxy group;R.sup.5 represents a hydrogen atom or an alkyl group, with the proviso that R.sup.5 represents an alkyl group only when R.sup.4 represents a hydrogen atom;R.sup.6 represents an alkyl group, an aryl group or an aralkyl group; andX and Y each represent a hydrogen atom, a halogen atom, a nitro group, a lower alkyl group, an aryl group, an alkoxy group or a carboalkoxy group.The aforesaid compound may be provided in a pressure-sensitive copy system wherein a visible image is formed upon reaction of the above chromogenic compound with an electron-accepting material of the Lewis acid type.

Abstract: A thermally sensitive record material having a very low abrasive surface comprising a substrate coated with a colorless chromogenic material and a phenolic co-reactant in a binder and including a cross-linked urea-formaldehyde resin pigment as a component thereof. The use of the urea-formaldehyde (UF) resin pigment provides a thermal record material with superior bleed resistance, extremely low abrasivity, thereby reducing wear on imaging tools such as print heads, and improved release properties. The UF pigment also improves the image to background contrast and the efficiency of the action of the co-reactants in the record material.

Abstract: This invention relates to a process for the production of hot melt coating compositions containing microcapsules and inorganic pigment particles comprising the following: An aqueous dispersion of microcapsules is prepared. Inorganic pigment particles are added to the aqueous dispersion of the microcapsules and mixed. The dispersion of the microcapsules and the inorganic pigment particles are sprayed into a heated atmosphere, thereby drying the dispersion and producing a free-flowing powder of the microcapsules. The inorganic pigment particles are substantially deposited on and adhered to the microcapsules. The free-flowing powder of the microcapsules having the inorganic pigment particles deposited thereon are then dispersed in a liquid hot melt suspending medium. The liquid hot melt coating composition so produced can be coated on a substrate. The invention further relates to a coating composition comprising microcapsules, from about 0.

Abstract: A transfer sheet is provided having a substrate coated with pressure-rupturable microcapsules containing an oil and an oil-soluble dye intermediate and a particulate oil-absorptive material which is non-reactive with the dye intermediate and is situated with respect to said microcapsules such that oil released by the microcapsules is absorbed thereby. The concentration of oil absorptive material is sufficient to permit writing on the coated substrate without interference from oil released by ruptured microcapsules but less than that which materially reduces the transfer of oily solution from ruptured microcapsules to an underlying copy sheet.

Abstract: Pressure-sensitive reusable transfer elements of the squeeze-out type having a microporous resinous ink-releasing layer firmly bonded to a flexible foundation. The invention is characterized by the use of a bonding layer which is applied to the foundation as an aqueous composition comprising a water-dispersible, water-insoluble resinous binder material which dries to form a tacky, adhesive layer.

Abstract: A method for manufacturing a keyboard which can be utilized in a keying structure is described. It consists of layering a flat fixed plate with a conductive paint, masking a preformed insulating rubber keyboard, laying the keyboard on the conductive paint surface and thereafter applying pressure to the rubber keyboard to the extent that certain portions of the rubber keyboard are put in contact with the conductive paint.

Abstract: A method for measuring pressures which comprises allowing a material whose pressure is to be measured to press against a recording sheet to form a color image due to the pressure, and evaluating the changes in the optical color density of the color hue of the resulting color image on the recording sheet, the color image formation due to the pressure being effected by contacting a synthetic polymer microcapsule layer containing a color former with a color developer layer under pressure, said microcapsule layer and said color developer layer being coated on the same surface of the support.

Abstract: A plurality of sheets are attached together by one or a plurality of thin films or layers of tough flexible material. A film may attach two sheets together firmly or in a releasable manner to permit relative movement between the sheets. In one form of the invention, each film or layer of flexible material is attached by self-bonding to the sheets between which the film or layer is disposed. In another form of the invention, each film is self-bonded to only one sheet and a plurality of films are attached together to attach a plurality of sheets together. The film may carry image transfer material on a complete surface thereof or on a portion thereof, in addition to serving as attachment means for adjacent sheets. In another form of this invention, the film serves only as a means for attachment of adjacent sheets, one to the other.

Abstract: A process is provided for producing a pressure-sensitive carbonless transfer sheet comprising preparing a solution of a first chromogenic material, the solution of the first chromogenic material including at least one chromogenic compound dissolved in a carrier oil, and the first chromogenic material being reactive with a second chromogenic material in the presence of the carrier oil to form a color. The solution of the first chromogenic material is mixed with a liquid radiation curable substance to form a coating composition, the liquid radiation curable substance being curable to a frangible resin and compatible with the color-forming capabilities of said first chromogenic material. A film forming material is applied to a substrate, the film forming material being settable to form a barrier layer which substantially prevents penetration of the substrate by the coating composition upon application of the coating composition to the substrate.

Abstract: A process is provided for producing a pressure-sensitive carbonless transfer or record sheet comprising the steps of preparing a liquid chromogenic coating composition by mixing chromogenic material with a liquid radiation curable substance, the chromogenic material comprising either an acidic color developer of the electron donator type or a color precursor of the electron accepting type. The liquid coating composition is coated onto a web or substrate at a coat weight of from about 0.2 pounds to about 8.0 pounds per 3300 square feet of substrate. The coated web is then exposed to radiation for a time sufficient to cure the liquid coating composition to a tack-free film. A novel liquid chromogenic coating composition is produced, the coating composition comprising a chromogenic material and a radiation curable substance.

Abstract: Process for transferring overlayed multiple ink patterns from the surface of a release blanket to a receiving surface on a container or other formed article being printed. A substantially transparent film is first formed on the release blanket, with each ink pattern being printed sequentially over this release film. Proper printing on the release film without picking the release film or previously applied ink films is obtained when certain adhesive and cohesive relationships are maintained between the ink films and the release film. An adhesive film may be formed on the article to be printed, or it may be formed over the ink films and the release film on the release blanket. The receiving surface on the article to be printed is brought into contact with the films on the release blanket, with a resulting total transfer of the films on the blanket to the surface of the article.

Abstract: A heat-sensitive recording material which contains as color former at least one azo compound of the formula ##STR1## WHEREIN D represents a phenyl radical which is unsubstituted or substituted by halogen, alkyl, alkoxy, aryloxy, alkoxycarbonyl, N,N-dialkylaminocarbonyl, acylamino, N-acyl-N-alkylamino or the group ##STR2## wherein each of Y.sub.1 and Y.sub.2 independently represents alkyl or aryl or, together with the nitrogen atom to which they are attached, represent a heterocyclic ring which optionally contains an oxygen atom,X.sub.1 represents hydrogen or alkyl,X.sub.2 represents alkyl, cyanoalkyl or arylmethyl, or X.sub.1 and X.sub.2, together with the nitrogen atom to which they are attached, represent a heterocyclic ring which optionally contains an oxygen atom,X.sub.3 represents alkyl or aryl, and n is 1 or 2; said color former being dispersed or dissolved in a fusible binder layer on a substrate, and the material also containing an electron acceptor substance as a color developer.

Abstract: A desensitizing composition used for a recording material capable of forming a color image by the reaction of a colorless color former and an adsorbent, which contains at least one compound obtained by the addition reaction of an .alpha.,.beta.-unsaturated carboxylic acid derivative or an .alpha.,.beta.-unsaturated ketone with an amine, is disclosed. A method of desensitizing an adsorbent contained in a recording material which comprises using such composition is also disclosed.

Abstract: A color source sheet consisting of a thin porous paper receptive to printing ink, typewriter, pencil copy, electrostatic copiers, etc. and having on one surface a thin uniform coating comprising rubber binder, particulate heat-volatilizable dye and particulate filler which is non-absorptive of the dye. The dye is transferable by thermographic heating at temperatures readily available in commercial thermographic copying machines.

Abstract: This application relates to textile sheets which have been coated with polyurethanes and to a process for coating said textile sheets wherein a solution of polyurethane is applied as a top coat to a release substrate and then a bonding coat is applied before application of the textile material. The polyurethane which is used as a top coat is prepared by reacting a dihydroxyl compound with a molecular weight between about 600 and 4000 and a mixture of at least 2 diols with a molecular weight between 62 and 450 with at least one organic diisocyanate. The invention overcomes the difficulty of the top coat being lifted from the release substrate in numerous areas while other areas remain firmly attached giving the so-called "hoar-frost" effect.

Abstract: Sets of manifold business forms are coated on selected surfaces thereof with chemicals which are capable of reacting with each other to produce a colored mark. In one arrangement at least one intermediate sheet is coated on one surface with a composition of a record-developing material (which is generally solid) and a non-compatible color precursor (which is generally in the form of a microencapsulated liquid) to thereby function as both a record-receiving and a color-transfer surface upon reacting with the coating of at least another separate sheet of the set containing another compatible color precursor and/or another record-developing material on the surface thereof. In another arrangement, some of the sheets are coated front and back with a record-developing material, while others are coated front and back with a microencapsulated color precursor.