Abstract: A versatile method of cold transferring images without using supplemental heat in the course of image transfer to a wide variety of substrates includes printing an image with water-based ink onto an image transfer sheet that has a coating of water-accepting adhesive. The sheet is then applied to the substrate to transfer only the portions of the adhesive that bear the image onto the substrate, with the remainder of the adhesive remaining attached to the sheet. A method of manufacturing image transfer sheets includes first applying a water impermeable layer onto a flexible substrate. A layer of water-activatable adhesive is applied upon the water impermeable layer. The adhesive is then dried in a dryer with dehumidified air. A water permeable detack layer is then applied upon the layer of adhesive.

Abstract: A method and a system for efficiently using media stamped on a substrate include a feedroller, a shuttle, a cylinder and a control arrangement. The media has at least one registration mark. The feedroller is coupled to the media and provides the media with a first velocity component. A shuttle is coupled to the feedroller via the media and moves linearly with a variable periodic velocity. The shuttle provides the media with a second velocity component, the second velocity component being a function of the velocity of the shuttle. A cylinder has at least one die and a stamping area in which one of the at least one die urges the media against a substrate. The media and the substrate have same velocity in the stamping area during the urging, but the substrate has a greater average velocity than an average velocity of the media. A control arrangement is coupled to the feedroller, the shuttle and the cylinder. The control arrangement maintains a registration between the media and substrate.

Abstract: A multi-purpose laminating and adhesive transfer apparatus having a frame supporting rotatably engaging nip rollers. A replaceable cartridge is insertable into the frame and has upper and lower feed rolls which may be a laminate, film or paper, or an adhesively coated film or a film having an affinity for adhesive. The upper and lower feed rolls containing the webs of laminating or adhesive transfer material have tensioning caps which can be adjusted to provide the proper tensioning to prevent the rollers from overrunning as they rotate. Tensioning caps and the cartridges are pre-set and provided to the user. A cutter blade is positioned at the discharge side of the nip rollers and may be actuated to sever the master at any desired location. The apparatus may be operated to apply lamination to either top or bottom surfaces of a substrate or an adhesive to the top or bottom surface of the substrate or to both surfaces.

Abstract: The present invention relates to graphic or informational articles that may be applied to a surface of a translucent or substantially clear substrate so that the image may be viewed through the substrate. The present invention is an indoor advertising system or kit that includes two components. The first component is a substantially clear, perforated imageable film layer with a perforated adhesive layer on a surface thereof. The second component is a non-perforated colorant transfer component that includes a removable carrier film with at least one color layer on a surface thereof. The present invention further includes a process for making the graphic articles. In the process of the present invention, an image layer is formed on a first major surface of a substantially clear, perforated imageable film layer.

Abstract: A liner bonding apparatus for bonding liners to half shells for a cartridge housing a recording disc or the like includes a conveyor for conveying half shells, a fabric transfer mechanism for supplying a liner fabric, and a punching mechanism for punching out liners from the fabric. There are further provided a provisional bonding mechanism for temporarily boding a punched-out liner to each half shell on the conveyor by dripping liquid such as water or alcohol onto the half shell, and a nonprovisional bonding mechanism for bonding the liner permanently to the half shell by applying heat and pressure to the liner.

Abstract: A method for creating peelable or frangible seals comprising the steps of: 1) selecting a first planar film with a polyethylene based resin disposed on its surface; 2) defining a frangible sealing zone on a surface of the first planar film; 3) heat sealing a second planar film to the frangible zone where the second planar film has a seal surface comprising a plurality of polymers; and 4) cooling the first and second planar films and frangible zone. A seal is created whereby peeling away the second planar film causes a rupture in the polymers disposed on the second planar film's surface.

Abstract: Disclosed are thermal transfer elements and processes for patterning organic materials for electronic devices onto patterned substrates. These donor elements and methods are particularly suited for making organic electroluminescent devices and displays. The donor elements can include a substrate, an optional light-to-heat conversion layer, and a single or multicomponent transfer layer that can be imagewise transferred to a receptor to form an organic electroluminescent device, portions thereof, or components therefor.

Abstract: A process for producing a printing form on a form cylinder, which process operates reliably even in the case of large form cylinders and high laser powers, contains the process steps of drawing a blown film tube onto the form cylinder, transferring surface elements of the tubular film, in accordance with an image, as a result of heating by a laser beam, and removing the blown film tube from the form cylinder.

Abstract: The present invention discloses a high weight percent of silicone within the silicone-urea block polymer for use with or as a dielectric layer material for electrostatic printing. The high weight percent comprises between about 66 and about 94 weight percent.

Abstract: Disclosed are thermal transfer elements and processes for patterning solvent-coated layers and solvent-susceptible layers onto the same receptor substrate. These donor elements and methods are particularly suited for making organic electroluminescent devices and displays. The donor elements can include a substrate, an optional light-to-heat conversion layer, and a single or multicomponent transfer layer that can be imagewise transferred to a receptor to form an organic electroluminescent device, portions thereof, or components therefor. The methods offer advantages over conventional patterning techniques such as photolithography, and make it possible to fabricate new organic electroluminescent device constructions.

Abstract: The present invention provides a number of interrelated methods for the production of random and ordered arrays of particles and recesses as well as films containing such arrays and recesses. The present invention also relates to the random and ordered arrays of particles and films prepared therefrom. The ordered arrays are obtained by the use of ferrofluid compositions which may be curable, solidifiable on non-curing/non-solidifiable. The arrays and films may contain electrically-conductive particles useful in electronic applications for effecting contact between leads or pads.

Abstract: The present invention relates to thermal transfer ribbons comprising a ribbon backing element and at least one printing media layer comprising at least one near infrared fluorescent compound in a concentration which provides detectable fluorescence without imparting color to a mark made from said printing media layer. Methods for printing marks containing said at least one near infrared fluorescent compounds via thermal transfer and methods for reading said marks are also disclosed.

Abstract: In security printing apparatus for attaching a foil imprint of predetermined shape to stock (10) such as bank note sheets, a tape (8; 108)) carrying foil to be printed and a layer of hot-melt adhesive is conveyed with the stock past a heated printing roll (2; 102). In order to allow high printing speeds the adhesive is at least partially activated by pre-heating just prior to printing. The pre-heating means may comprise hot air, radiation or heated guide means for the foil carrier web. Details of pattern or shape may be etched on the foil, either before or after printing, by means of laser beam, the details being defined by a mask moving with the foil.

Abstract: A heat-sensitive transfer medium comprises a base material and superposingly formed thereon a release layer, an intermediate layer and an ink layer in this order. The ink layer contains a colorant, a first resin capable of curing upon reaction with a curing agent, a curing agent that causes the resin to cure, and a second resin capable of inhibiting the reaction of the first resin with the curing agent, and the release layer is formed in a coating weight of from 0.005 g/m.sup.2 to 0.4 g/m.sup.2. This heat-sensitive transfer medium enables sharp color printing and also can form transferred patterns having a superior rub resistance.

Abstract: There is provided by the present invention a coating formulation and thermal transfer ribbon and printer which provide printed images that will permanently mark ceramic material when the printed image is applied to the surface of a ceramic article and fired. These formulations and ribbons contain ceramic pigments that will fuse to the surface of a ceramic material when fired. The printed images can be applied to ceramic materials using the decals of this invention which comprise a printed image on a sacrificial receiving substrate that vaporizes or decomposes when fired. Methods for permanently marking ceramic articles are also provided as are permanently marked ceramic articles.

Abstract: A thermal transfer element for forming a multilayer device may include a substrate and a multicomponent transfer unit that, when transferred to a receptor, is configured and arranged to form a first operational layer and a second operational layer of a multilayer device. In at least some instances, the thermal transfer element also includes a light-to-heat conversion (LTHC) layer that can convert light energy to heat energy to transfer the multicomponent transfer unit. Transferring the multicomponent transfer unit to the receptor may include contacting a receptor with a thermal transfer element having a substrate and a multicomponent transfer unit. Then, the thermal transfer element is selectively heated to transfer the multicomponent transfer unit to the receptor according to a pattern to form at least first and second operational layers of a device.

Abstract: A method of transfer printing onto a receptor substrate (16), comprising at least partially covering a first transfer (13) with barrier means (15) located to come between the first transfer (13) and the receptor substrate (16) so that, where the barrier means (15) covers the first transfer (13), transfer material (6) is substantially prevented from being transferred from the first transfer (13) to the receptor substrate (16), and the barrier means (15) is sandwiched between the first transfer (13) and a second transfer (14).

Abstract: A dual-layer DVD disc that does not require a stamping step (typically, as part of the 2P prior art manufacturing process) during its manufacture. A polycarbonate substrate is molded and coated with a semireflective data layer in the usual way. A PMMA substrate is molded and coated with a fully reflective data layer. Adhesive is placed on the semireflective data layer, and the fully reflective data layer is transferred from its PMMA substrate to the polycarbonate substrate. The polycarbonate substrate thus ends up with two data layers in conformance with the DVD specifications, and the PMMA substrate can even be recycled for another use.

Abstract: A method and apparatus for making a graphic product from a layer of sheet material on a carrier sheet uses stored machine readable data describing the periphery of the graphic product to cut and remove the product from the carrier sheet. The apparatus includes a feeding mechanism for feeding the layer of sheet material and a bonding web adjacent a thermal heating head. The thermal heating head has individual heating elements that are selectively energized to heat the bonding web throughout a patterned heat application area which overlies the portion of the sheet material corresponding to the weed or the graphic product designated for removal. The portion of the layer of sheet material secured to the bonding web is then separated from the carrier sheet. The apparatus can also be used to apply an adhesive inhibitor to one portion of the sheet material so that another portion can be removed with a conventional adhesive transfer web.

Abstract: An overcoat fixing device of the application fixes a coat film on a front surface of a recording medium by heating. The overcoat fixing device is formed of a transferring device for transferring the recording medium along a transferring path, a fixing device provided in the transferring path and fixing the coat film to the recording medium, and a pressing device provided in the transferring path away from the fixing device and pressing one surface of the recording medium on which the coat film is fixed. The pressing device presses the recording medium with the coat film sent from the fixing device by the transferring device for a predetermined time while stopping at a predetermined position. Accordingly, bending of the recording medium can be corrected.

Abstract: Disclosed is a thin film-forming apparatus comprising a coating liquid feed means 6 for feeding a thin film-forming coating liquid onto a surface of a transfer roll 2, a transfer means 4 including the transfer roll 2 a surface of which is coated with the thin film-forming coating liquid fed from the coating liquid feed means to form a transfer thin film 8, and a substrate conveying means 16 for continuously conveying a substrate 9 under the transfer roll, a surface of said substrate 9 to be provided with a thin film, wherein the transfer means is so fabricated that the transfer roll surface having the transfer thin film thereon is closely contacted with the surface of the substrate conveyed by the substrate conveying means, to transfer the transfer thin film formed on the transfer roll surface to the substrate surface. Also disclosed is a thin film-forming method using the thin film-forming apparatus.

Abstract: A material sheet assembly in which a label base attached to a release liner by means of an adhesive is set in roll form is used. In a step in which the material sheet assembly is continuously fed out, the release liner is released by leaving the adhesive on the label base, and the release liner is consecutively taken up. By using a noncontact-type printer, printing is effected on the adhesive surface of the label base separated from the release liner to form a printed label. The printed label is in such a form that the printed surface is disposed between the label base and an adherend. The labels can be attached immediately after they are manufactured, and they can be stored or transported by being taken up in roll form while an additional release liner is attached to the printed surface side.

Abstract: In a process for the production of a stamping foil such as a hot stamping foil having a decorative layer provided on a carrier film only in a region-wise manner, corresponding to a desired patterning of the substrate, negative regions of the decorative layer, which do not remain on the carrier film, are removed from the carrier film of the stamping foil by being pulled off by means of a recipient foil.

Abstract: A method of making a cell electrode of a stripe rectangle shape having at least one electrode depolarizing mix layer on a current collector. A thickness of one end portion of the electrode depolarizing mix layer is thicker than an average thickness of the electrode depolarizing mix layer by 2 to 25%. The method comprises sequentially bond adhesive tape pieces to a strip conductive sheet, coating on electrode depolarizing mix solution on the surface of the stripe conductive sheet and peeling off the adhesive tape piece.

Abstract: An article for enhancing an athletic implement grip where the article comprises a carrier material which is impregnated with a mixture utilizing a tacky adhesive and a thickener. The mixture is applied in sufficient quantities to the grip so as to permit retention of a portion of the mixture to the carrier and removal of a portion of the mixture when the impregnated carrier material contacts an athletic implement grip.

Abstract: A three-dimensional relief plastic sheet for use on articles such as binders comprises a decorative overlay sheet made of a plastics material and at least one three-dimensional relief representation integrally formed on the overlay sheet, for instance, by vacuum forming. The overlay sheet is adapted to be mounted to various articles, preferably made of plastics materials, by way of adhesives, heat-sealing, high-frequency welding, etc. The overlay is preferably made of polyvinyl chloride (PVC), polyethylene or styrene (e.g. polystyrene) and thus can be secured, for example along the periphery thereof, to the vinyl covering of loose-leaf binders and other document carrying folders respectively using high-frequency welding and glues. The three-dimensional representation and the overlay sheet typically include colored sections and possibly transparent sections. A mirror-like backing sheet is provided behind the overlay sheet when there are such transparent sections.

Abstract: Apparatus and method for creating graphic compositions such as murals by transferring selected portions of the mural from tracing sheets using a wand or stylus to trace the outlines of the individual objects and certain shaded areas of the objects onto a surface such as a wall to create a three-dimensional effect. An alignment scale is provided to align each of the transfer sheets so that the sheet may be removed after selected objects have been transferred to the surface and thereafter reapplied to transfer additional objects to the surface in registry with the first set of objects. Guide numbers or printed symbols are provided to direct the user to apply the appropriate colors and shades of colors to each of the areas on the transferred graphic or mural. The transfer wand includes both a pinwheel and a stylus on a single instrument for creating thick, thin or dashed lines, or solidly-shaded areas together with an eraser to be used to correct or redo transfer lines.

Abstract: A three-dimensional object is generated according to a stored, digital representation through layer-by-layer transfer of material onto a receiver, each layer corresponding to a layer of the three-dimensional representation. Each deposited layer is applied through selective irradiation of an ablation-transfer carrier. The carrier includes a transfer material that is ejected in response to irradiation, and which solidifies on the receiver or on a previously applied layer of transfer material. Thus, irradiation of the carrier in an area pattern corresponding to a layer results in deposition of the transfer material in accordance with the pattern. Sequential irradiations of fresh ablation-transfer carrier material, each according to a two-dimensional pattern corresponding to one of the contiguous layers of the three-dimensional object, result in depositions that gradually build up into the three-dimensional object.

Abstract: An impressed emblem is disclosed which includes a cover sheet which is used together with heat and pressure to impress a desired pattern on an emblem. The emblem can also be impressed with a pattern and simultaneously heat-sealed onto a desired substrate.

Abstract: The present invention provides a heat transfer printing sheet comprising a substrate sheet, and a thermally-expandable ink layer formed thereon, comprising as an expanding agent a thermally-expandable micro-capsule containing therein an easily-volatilizable hydrocarbon, and a binder resin having a number-average molecular weight of 1,000 to 30,000.The present invention also provides a heat transfer printing sheet comprising a substrate sheet, a release-property-controlling layer and a thermally-expandable ink layer comprising an expanding agent and a binder, in the mentioned order.

Abstract: A process is described for forming an emissive or phosphor screen. The process comprises the steps of:a) providing a thermal mass donor element comprising a substrate with a front side and a back side, with a coating of emissive material or phosphor adhered to said front side of said substrate,b) placing said coating of emissive material or phosphor adjacent to a support layer,c) addressing said mass donor element with coherent radiation to heat at least a portion of said coating of emissive material or phosphor to locally transfer at least some of said emissive material or phosphor to said support layer,d) repeating step c) a sufficient number of times to provide a coating of transferred emissive material or phosphor on said support layer in an area of at least 1 square centimeter.

Abstract: A method of selectively metallizing a thermoplastic substrate using a hot foil embossing technique, a patterned metal layer being transferred to the substrate from a metal foil by a cutting and pressing procedure including steps (a) and (b). In step (a) the patterned metal layer is first cut from the foil using a punch-press at a selected pressure p.sub.a. In step (b) the cut patterned metal layer is then attached to the substrate using a press at a pressure p.sub.b which is .ltoreq.10 N/mm.sup.2 and also <p.sub.a, and a temperature T.sub.b .gtoreq.100.degree. C. This avoids concurrent application of high pressure and high temperature, which could cause formation of upset edges at the surface of the substrate.

Abstract: A method of recycling an image supporting material from an image supporting material comprising a non-absorbent substrate and an absorbent swelling layer that swells with absorption of liquids, which is overlaid on the non-absorbent substrate, includes the steps of: applying to an image-bearing side of the image supporting material a liquid in an amount which exceeds a maximum amount of the liquid that can be absorbed by the swelling layer; leveling the liquid applied to the image-bearing side of the image supporting material to form a liquid film layer on the image supporting material; heating the swelling layer or the liquid film layer; bringing a peeling member into contact with the image forming material with the application of heat and pressure thereto when at least part of the liquid reaches an interface between the swelling layer and the image forming material deposited on the swelling layer; and separating said peeling member from image supporting material, to remove the image forming material from th

Abstract: A process for applying indicia onto an elastomeric component that will transfer by heat a coating of metallic foil onto raised surfaces on the elastomeric component, which can be letters on a motor vehicle tire. The process will also transfer by heat, a design of colored metallic foil onto a surface of the elastomeric component.

Abstract: A hot stamping foil includes a carrier, and disposed thereon, a thermochromic layer. The thermochromic layer includes a mixture of a thermochromic compound, a sizing or adhesive compound, and a release compound.

Abstract: A light-reflective decorative article is made by placing a foil sheet over a plurality of discrete, shaped particles of synthetic plastic material, thereupon fixing portions of the foil sheet on upper surfaces of the particles, and thereupon peeling the foil sheet off the particles but leaving behind the fixed foil sheet portions.

Abstract: A frangible label which includes a plurality of integrally joined layers deposited successively on a removable carrier film. One or more of the layers are electrically conductive and configured to define an electrical circuit. The label is transferrable from the carrier film onto a receiving surface and is otherwise inseparable from the carrier film without attendant disruption of the circuit. In an alternative embodiments the label includes an adhesive layer for applying the label to a substrate, such that the plurality of integrally joined layers including the electrical circuit are transferrable to the receiving surface and are otherwise inseparable from the carrier film without destruction of the electrical circuit.

Abstract: A hot stamp material is provided which includes a base; an inner release layer; an intermediate layer composed at least one gold and silver coating and an outer adhesive layer composed of edible material, wherein the inner release layer together with the intermediate layer and the outer layer are laminated on the base. According to a feature of the present invention, the hot stamp material can further include an additional color layer. The color layer may interposed between the inner release layer and the intermediate layer or between the intermediate layer and the outer adhesive layer or on both sides of the intermediate layer.

Abstract: A metal leaf adhesive transferring sheet is disclosed and includes a transfer sheet which is provided with a paper backing and a release layer. The release layer of the transfer sheet is coated with an adhesive. The adhesive may be transferred to a substrate by either burnishing an image on the first side of the transfer sheet or wetting the transfer sheet if a water release type release sheet is used. Thereafter, metal leaf may be applied to the adhesive image that is transferred to the substrate. A method of transferring metal leaf to a substrate is also disclosed.

Abstract: In a method of transferring a security element which is in the form of a laminate with a carrier foil and with a thermally activatable adhesive layer for connection to a substrate onto a document the adhesive layer is brought into contact with the substrate and locally heated by the supply of heat energy through the laminate. After the adhesive layer cools if necessary the carrier foil can be pulled off the substrate, in which case the carrier foil, at the locations adhering to the substrate, is detached from the rest of the laminate and the laminate tears along the boundary between the adhering and the non-adhering locations so that only the adhering locations of the laminate remain behind on the substrate. In particular a laser beam or an array of laser or light emitting diodes is suitable for the supply of heat energy. The laminate preferably has diffraction structures or layers producing optical interference effects.

Abstract: A method and apparatus automatically fabricates a three dimensional object from individual layers of fabrication material having a predetermined configuration. Successive layers are stacked in a predetermined sequence and affixed together to form the object. The fabrication material is carried on a substrate to a stacker. At the stacker the layers are stacked together, with each layer being successively affixed to the stack of previously affixed layers, and with the substrate removed from each layer after it is affixed.

Abstract: A computerized apparatus and method for creating and databasing vehicular window template information in memory storage with such template information being used by a window tinting system to generate window tinting film sections for use on corresponding target windows. The database would be continually increased by feeding new digitized window template images into the computer for appropriate scaling, classification, and storage. When tinting a known vehicle, the previously entered template information can be accessed and this will greatly enhance the speed and accuracy of the window tinting process.

Abstract: The present invention relates to a method and apparatus for reusing an image recording material wherein a releasing property is imparted to at least substrate surface of an image recording material on which an image has been formed of an image forming material containing a heat fusible ingredient, a heat fusible material is added or attached onto the image recording material, a stripping member is contacted under pressure with the heat fusible material while heating the heat fusible material together with the image recording materials to fuse, and the image recording material is peeled off from the stripping member to transfer the image forming material together with the heat fusible material to the stripping member, thereby reusing the image recording material. The materials for imparting a releasing property to the substrate surface include silicone compounds such as silane compounds, preferably those silane compounds containing fine particles such as silicone resins.

Abstract: Rigid signs are prepared by a facile method of fixing an image to a rigid substrate coated with a thermally tackifiable coating. The image is readily produced through the use of a computer graphics program, and the image is printed onto a transfer film using a conventional computer printer. The image-bearing surface of the transfer film is then joined in pressing contact with the thermoplastic coating which has been warmed to a softened or tacky state. Upon cooling the thermoplastic coating to a hard, durable state, the transfer film is removed leaving the image securedly affixed to the rigid substrate.

Abstract: In accordance with the invention, an electronic device having one or more contact pads is placed in contact with a carrier sheet bearing an array of transferable solder particles. Heat is applied to adhere the solder to the contact pads, and solder is selectively transferred onto the contact pads. In a preferred embodiment the solder-carrying medium comprises elastomeric material and the solder particles comprise solder-coated magnetic particles. Application of a magnetic field while the elastomer is curing produces a regular array of solder coated particles. Using this method, devices having smaller than conventional contact structures can be readily interconnected.

Abstract: A material sheet assembly in which a label base attached to a release liner by means of an adhesive is set in roll form is used. In a step in which the material sheet assembly is continuously fed out, the release liner is released by leaving the adhesive on the label base, and the release liner is consecutively taken up. By using a noncontact-type printer, printing is effected on the adhesive surface of the label base separated from the release liner to form a printed label. The printed label is in such a form that the printed surface is disposed between the label base and an adherend. The labels can be attached immediately after they are manufactured, and they can be stored or transported by being taken up in roll form while an additional release liner is attached to the printed surface side.

Abstract: A decal assembly comprises a backing web, a printed label positioned on the backing web, an adhesive web applied over the label and the backing web, and a releasable liner web carrying the adhesive web and applied over the label and the backing web. The label and the adhesive web over the label define the actual decal. In a preferred embodiment, the label is made from retroreflective sheeting. Labels printed with fixed information are provided on a master roll. The endmost label is printed with variable information, separated from the master roll, and then assembled into the decal assembly. For use, the releasable web is peeled back to reveal the adhesive web, the label, and the backing web. The decal (i.e., the label and the adhesive web covering label) can then be separated from the surrounding adhesive web and the backing web and applied to a surface.

Abstract: The invention relates to a process and an arrangement for the three-dimensional forming of a fabric. The process comprises the steps of providing a countermold; preparing a complex sheet by superimposing a sheet of plastics, hot-melt material and a fabric; die-cutting the complex sheet; superimposing the die cut complex sheet over the fabric; attachment of the die cut complex sheet to the fabric by pressing and heating until the fabric is impregnated by melting of the hot-melt material; and application of the ensemble of the complex sheet and fabric to the countermold by blowing pressurized air. The arrangement comprises a frame receiving the fabric to be formed and which is movable through various workstations wherein the process steps take place.

Abstract: A heat-transferable film and a method for providing a tick pattern on a film-decorated substrate is provided. The heat-transferable film comprises (1) a transfer layer in facing engagement with a substrate having a first gloss level, at least one color, and a heat-activatable adhesive layer; (2) a plurality of individual spaced-apart markings, the markings having a color different from the color or colors within the transfer layer and a second gloss level different from the first gloss level, the markings adhered to the top of the transfer layer; and (3) a carrier sheet adhered to the top of the individual spaced-apart markings. Heat and pressure are applied to the top of the carrier sheet such that the heat-activatable adhesive affixes the heat-transferable film to the substrate.

Abstract: Disclosed is a thermal ink jet printhead which comprises (a) an upper substrate with a set of parallel grooves for subsequent use as ink channels and a recess for subsequent use as a manifold, the grooves being open at one end for serving as droplet emitting nozzles; and (b) a lower substrate in which one surface thereof has an array of heating elements and addressing electrodes formed thereon, the lower substrate having a thick film insulative layer deposited over the heating elements and addressing electrodes and patterned to form recesses therethrough to expose the heating elements and terminal ends of the addressing electrodes; said upper and lower substrates being aligned, mated, and bonded together to form the printhead with the grooves in the upper substrate being aligned with the heating elements in the lower substrate to form droplet emitting nozzles, wherein the upper and lower substrates are bonded together with an adhesive which comprises a reaction product of (a) an epoxy resin selected from the