Abstract: A method for printing a label on a keypad, including the steps of providing a substrate plate, spraying ink on the substrate plate to form a label layer, solidifying the label layer, spraying ink around the label layer to form a primer layer, and solidifying the primer layer.

Abstract: A method of manufacturing a panel from a base using a droplet ejection apparatus including two groups of heads with each group including first to fourth heads. In each group, the nozzle arrays of the first and third heads overlap throughout a first sub-area, the nozzle arrays of the first and fourth heads overlap throughout a second sub-area, and the nozzle arrays of the second and fourth heads overlap throughout a third sub-area when viewed from a second direction. The second sub-areas of the two groups partially overlap each other when viewed from the second direction. The method includes preparing the base, and supplying the liquid materials of the predetermined colors onto the base in the form of the droplets by ejecting the droplets by the droplet ejection apparatus while mutually moving the base and the head unit in the second direction.

Abstract: A method and apparatus is provided for printing using paste like inks such as those used in intaglio printing, wherein the inks include specialty flakes such as thin film optically variable flakes, or diffractive flakes. The invention discloses an apparatus having an energy source such as a heat source for temporarily lessening the viscosity of the ink during alignment of the flakes within the ink.

Abstract: A method for forming a body comprising a mixture of a matrix and conductive particles, whereby the conductive particles are formed into aligned conductive pathways in an alignment step by applying an electric field between alignment electrodes and thereafter stabilizing the mixture wherein the conductive particles have a low aspect ratio; and a polymeric composition and method for producing such composition which is curable by UV light to an anisotropic electrically conductive polymer layer, comprising i) providing a non-conductive matrix of a flowable polymer composition having inherent photocurability, ii) adding to matrix conductive particles having low aspect ratio in an amount to allow the concentration of the conductive particles to be maintained at a level lower than the percolation threshold, and iii) placing the formed composition in a receptacle where exposure to UV light is prevented, and a method for establishing an anisotropic electrically conductive, optionally thermally conductive

Abstract: The present invention relates to a method for manufacturing a light-emitting device. At least one of a light-emitting film forming step, a conductive film forming step and an insulating film forming step is carried out while holding a substrate in a manner that an angle subtended by a surface of the substrate and the direction of gravity is within a range of from 0 to 30°.

Abstract: An aperture plate coated with a composition including a first monomer, a second monomer, a fluorinated compound, such as fluorosilane, fluoroalkyl amide, fluorinated ether and the like, and a photoinitiator, where the first and second monomer are different. A process of coating an aperture plate includes applying the compositions to a base film, such as a polyimide film, and curing the compositions on the base film.

Abstract: The present invention provides a method to design, manufacture and structure a multi-component energy device having a unified structure, wherein the individual components are chosen from the list consisting of electrochemical cells, photovoltaic cells, fuel-cells, capacitors, ultracapacitors, thermoelectric, piezoelectric, microelectromechanical turbines and energy scavengers. Said components are organized into a structure to achieve an energy density, power density, voltage range, current range and lifetime range that the single components could not achieve individually, i.e. to say the individual components complement each other. The individual components form a hybrid structure, wherein the elements are in electrical, chemical and thermal conduction with each other.

Abstract: An inkjet ink comprising polymeric fluoro-polymeric additives providing enhanced pen and print quality performance.

Abstract: A photo-curable composition including (A) a cationic polymerizable compound, (B) a sensitizing colorant represented by the following formula (I), and (C) an onium salt; an ink composition containing the photo-curable composition; an inkjet recording method using the ink composition are provided, and in formula (I), X represents O, S or NR, R represents a hydrogen atom, an alkyl group, or an acyl group, n represents 0 or 1, each of R1 to R8 independently represents a hydrogen atom, or a monovalent substituent.

Abstract: This invention provides an ink composition capable of forming an image which has favorable curing sensitivity, is excellent in rubbing resistance and blocking properties, and has controlled surface stickiness and improved surface curing properties, an inkjet recording method using the ink composition, and a printed material; and the ink composition containing a polymer (a) including a partial structure selected from the group consisting of fluorine-substituted hydrocarbon group, a siloxane skeleton group, and a long-chain alkyl group; a radical polymerizable group, and a tertiary amine structure.

Abstract: An ink composition is provided that includes (A) an N-vinyllactam, (B) another polymerizable compound, (C) a polymerization initiator, and (D) a basic compound, the content of the N-vinyllactam (A) being less than 15 wt % of the total weight of the ink composition. There is also provided an inkjet recording method that includes (a1) a step of discharging the ink composition onto a recording medium and (b1) a step of curing the ink composition by irradiating the discharged ink composition with actinic radiation. There is also provided a printed material recorded by the inkjet recording method.

Abstract: An ink set for inkjet recording is provided that includes at least a colored liquid comprising at least a radically polymerizable compound, a photopolymerization initiator, and a colorant and an undercoat liquid comprising at least a radically polymerizable compound and a photopolymerization initiator, the undercoat liquid comprising a sensitizer represented by Formula (I) below. In Formula (I) above, X denotes O, S, or NR, n denotes 0 or 1, R denotes a hydrogen atom, an alkyl group, or an acyl group, and R1, R2, R3, R4, R5, R6, R7, and R8 independently denote a hydrogen atom or a monovalent substituent. There is also provided an inkjet recording method employing the ink set for inkjet recording, the method including a step of applying the undercoat liquid on top of a recording medium, a step of semi-curing the undercoat liquid, and a step of carrying out image formation by discharging the colored liquid on top of the semi-cured undercoat liquid.

Abstract: There is provided an ink composition which can yield images having silver salt photograph-like gloss and is also excellent in fixation, lightfastness, and gasfastness of recorded images. The ink composition comprises: a resin produced by emulsion polymerization of an ethylenically unsaturated monomer in the presence of a reactive emulsifier containing a hydrophilic group, a hydrophobic group and a radical reactive group; water; and a pigment.

Abstract: A method and device for producing an aligned carbon nanotube array. The arrays of aligned carbon nanotubes (CNTs) may be formed by drying liquid dispersions of CNTs on a nanoporous substrate under an applied electrostatic field. The array may be used in a number of applications including electronics, optics, and filtration, including desalination.

Abstract: The liquid coating method includes the step of ejecting droplets from nozzles of a recording head onto an imaging region of a surface of a substrate placed on a support plate, wherein a dot pitch ? that is an interval between landing positions of the droplets on the surface of the substrate satisfies a following condition: ? ? 2 ? 3 ? V ? ( 1 + cos ? ? ? a ) ? sin ? ? ? a ? ? ( 1 - cos ? ? ? a ) ? ( 2 + cos ? ? ? a ) 3 where V stands for a volume of a droplet ejected from each of the nozzles and ?a stands for an advancing contact angle of the droplet against the substrate.

Abstract: The method of manufacturing a piezoelectric element includes: a lower electrode forming step of forming a lower electrode on a surface of a substrate; a piezoelectric film deposition step of depositing a piezoelectric film made of a piezoelectric material by one of epitaxial growth and oriented growth onto a surface of the lower electrode reverse to a surface adjacent to the substrate; an upper electrode forming step of forming an upper electrode onto a surface of the piezoelectric film reverse to a surface adjacent to the lower electrode; and a polarization direction reversal step of reversing a polarization direction of the piezoelectric film by maintaining, after the upper electrode forming step, a state for a prescribed duration where a temperature of the piezoelectric film is set to a first temperature while application of an electric field to the piezoelectric film in a direction from the upper electrode toward the lower electrode is performed, then keeping the application of the electric field while lo

Abstract: A method for high resolution ink-jet print using a pre-patterned substrate employs an ink-jet printing device including an ink-jet head for discharging conductive ink droplets and a driving stage for supporting a substrate to which the conductive ink droplets are hit, to draw a fine line width pattern on the substrate. The method includes (A) forming a stripe pattern with repeated stripes on a substrate surface on which a fine line width pattern will be formed, thereby preparing a pre-patterned substrate; (B) loading the substrate to the ink-jet printing device; and (C) injecting conductive ink droplets to a substrate region where the stripe pattern is formed. An equivalent interval (d) of the stripe pattern and a fine line width (D) of the drawn fine line width pattern satisfy a relation of d<<D, and the hit ink droplets are flowed in an anisotropic form within the region.

Abstract: A smear resistant inkjet ink formulation includes ink includes between 0.1 and 6% colorant, between 1 and 40% solvent, between 0.3 and 10% latex binder having a particle size between 100 and 300 nm and a glass transition temperature between ?20 and +100 degrees Celsius, water, and between 0.1 and 4% hydrophobic styrene-acrylic or acrylic resin having an acid number between 50 and 250 and a molecular weight between 1,000 and 60,000 or a polyurethane resin having an acid number between 40 and 200 and a molecular weight between 3,000 and 400,000.

Abstract: It is intended to provide a flocked metal plate, which has a hydrophilic nature and is excellent in water retention property and water absorbing property, and a method of producing the flocked metal plate. A flocked metal plate having a flocked layer, which is formed by implanting short fibers as short fiber bundles in a synthetic resin adhesive layer provided at least one face of a metal plate or a surface treated metal plate, wherein the synthetic resin adhesive layer is made a hydrophilic synthetic resin adhesive layer, the short fibers implanted in the synthetic resin adhesive layer are made hydrophilized short fibers, and the short fibers are implanted in the synthetic resin adhesive layer to give a flocked layer having short fiber bundles at as high density as possible, thereby giving a flocked metal plate carrying a flocked layer having been made a flocked layer which exhibits a hydrophilic nature, water retention property and water absorbing property.

Abstract: A laser fusible composition comprises a marking component, e.g. plastic dyes and pigments, coated with hot melt adhesive composition which can absorb laser irradiation at 780-10600 nm, and thereby causes through laser fusing, the composition to adhere firmly to metals, ceramics, glass, porcelain, marble, natural stone, paper and cardboards when heated.

Abstract: The invention provides solutions to the problems and needs stated above by providing battery separators that are inexpensive and easy to produce, provide superior performance over traditional separators, and provide robust safety. Towards those ends, the invention provides, in one aspect, the invention provides for a battery electrode comprising: an electrode having a surface, the electrode comprising: a plurality of active material particles; and, a plurality of electrically conductive particles, wherein the active material particles are capable of reversibly storing ions; a separator layer upon the electrode surface, the separator layer having top and bottom surfaces, the bottom surface facing each electrode surface, the separator layer comprising: a plurality of organic polymer particles, each particle having a gross cross sectional dimension between 0.

Abstract: A method of discharging droplets includes discharging a liquid material from a droplet discharge head and causing the droplet discharge head and a substrate as a landing target for the liquid material to move relative to each other to thereby deposit the liquid material on the substrate, feeding and removing the substrate to and from a droplet discharge apparatus provided with the droplet discharge head, performing a weight measurement discharge from the droplet discharge head substantially concurrent to the feeding and removing of the substrate to and from the droplet discharge apparatus, and measuring the weight of the liquid material discharged in the weight measurement discharge.

Abstract: Disclosed is a phase change ink composition comprising a phase change ink carrier and a colorant compound of the formula wherein X1, X2, X3, and X4 each, independently of the others, are —S—, —S(?O)—, or —S(?O)2—, R1, R2, R3, and R4 each, independently of the others, are alkyl, aryl, arylalkyl, or alkylaryl, R1?, R2?, R3?, and R4? each, independently of the others, are substituents, n1, n2, n3, and n4 each, independently of the others, are 0, 1, 2, or 3, and M is an atom or group of atoms capable of bonding to the central cavity of a phthalocyanine molecule, wherein axial ligands optionally can be attached to M. Also disclosed is a radiation curable ink composition comprising (a) an ink vehicle, said ink vehicle comprising at least one radically curable monomer compound, and this colorant compound.

Abstract: An assembly and associated method of manufacture are provided in which electrostatic deposition is used to directly apply and/or apply without solvents an electrode to one of an ion-conducting member, a member adapted to hold an ion-conducting member and a gas diffusion layer of the assembly.

Abstract: An orifice plate for an ink jet print-head for ejecting drops of an ink, wherein the orifice plate includes an outer surface, which has a wettability with the ink, and at least one orifice arranged in the outer surface, said orifice being configured for ejecting ink drops, each orifice having an edge, the edge defining a transition boundary between the orifice and the outer surface, wherein the wettability of the outer surface is poor near the edge of the at least one orifice and the wettability increases with increasing distance from the edge of the orifice, the increasing wettability with the increasing distance from the edge of the orifice providing a driving force for moving residual ink drops away from the edge towards a wettable region, thereby reducing the risk of disturbing the trajectories of subsequent ejected ink drops.

Abstract: Methods of fabricating a static interferometric image device and static interferometric image device formed by the same are disclosed. In one embodiment, a method includes providing a substrate. A plurality of liquid layers are formed over the substrate by an inkjet process such that the layers are lateral to one another. The liquid layers contain a solidifiable material or particles. Then, the plurality of liquid layers are solidified to form a plurality of solid layers. In some embodiments, the substrate includes pre-defined cavities, and the liquid layers are formed in the cavities. In other embodiments, the substrate includes a substantially planar, stepped, or continuously transitioning surface, and the liquid layers are formed on the surface. The inkjet process provides optical fillers or spacers for defining interferometric gaps between absorbers and reflectors in the display device, based at least partially on an image that the display device is designed to display.

Abstract: Disclosed is a nickel ink comprising a dispersion medium and nickel particles dispersed in the medium and containing a methyldimethoxysilane coupling agent. The dispersion medium comprises a glycol having a boiling point of 300° C. or lower at ambient temperature, an alkoxyethanol having 3 to 10 carbon atoms, and an ether having 2 to 8 carbon atoms. The ink preferably has a surface tension adjusted to 15 to 50 mN/m and a viscosity at 25° C. adjusted to 0.6 to 60 mPa·sec. The ink is preferably used in inkjet printing.

Abstract: It is aimed at providing: a coating liquid for nickel film formation suitable for forming a nickel film combinedly possessing an excellent electroconductivity and an excellent film-forming ability (surface flatness), by a coating method, particularly inkjet printing; a nickel film obtained by using the nickel film formation coating liquid; and a production method of such a nickel film. A coating liquid for nickel film formation comprises: nickel formate; and an amine based solvent having a boiling point within a range between 180° C. inclusive and 300° C. exclusive, as a main solvent, thereby allowing obtainment of a coating liquid for nickel film formation suitable for inkjet printing; and there can be obtained a uniform and flat nickel film having a low resistance and being excellent in film strength (adhesion force), by coating the nickel film formation coating liquid onto a substrate; drying the coated coating liquid; and subsequently calcining the dried coating liquid at a temperature of 200° C.

Abstract: Particles for display media are constructed as spherical resin fine particles, in which functional groups indicating positively-charging properties are existent on their surfaces, which are obtained by polymerizing monomer by utilizing initiator having functional groups indicating positively-charging properties produced by reacting organic alkyl sulfonates and both terminal ends of azo initiator having cationic functional group including nitrogen-containing heterocycle or nitrogen-containing fatty series, or, are constructed as spherical resin fine particles, in which functional group indicating charging properties or ionic properties are existent on their surfaces, which are obtained by polymerizing monomer by utilizing initiator having functional groups indicating charging properties or ionic properties at its both terminal ends.

Abstract: This invention relates to a component surface (side section 1a), in particular a vehicle surface, with a three-dimensional surface texture. This invention further relates to a method for the creation of a component surface (side section 1a), in particular a vehicle surface, with a three-dimensional surface texture. To keep the effort and expense required for the achievement of a three-dimensional surface texture low, the invention teaches that a film is glued to the component surface (side section 1a), which film has been provided prior to the gluing with a plurality of coats of paint, each using the screen printing process, which in their totality form a three-dimensional surface texture.

Abstract: A method of coating low density polyethylene (LDPE) and linear low density polyethylene (LLDPE), or combinations of the two, is disclosed. The method includes treating the polyethylene with a coating and then digitally printing the coated polyethylene substrate. The coated substrate may then be over-coated to protect the printing and the substrate may be formed as desired. The coated substrate may also be coated with a clear thin protective coating and heat-sealed on three sides to form a small tote bag.

Abstract: The present invention provides an ink for a color filter comprising a polymer binder, a crosslinking monomer, a solvent, a pigment, and a polymerization initiator. The polymer binder comprises acrylate or methacrylate including a hydroxy group. The polymer binder may comprise 2-hydroxyethyl acrylate or 2-hydroxyethyl methacrylate.

Abstract: The present disclosure provides for printed display, a method of manufacturing a printed display, and a system incorporating a printed display having a porous substrate The printed display includes a porous substrate structure, a first functional layer, a second functional layer, and an electrolyte layer percolated within the porous substrate structure The porous substrate structure may be disposed between the first functional layer and the second functional layer The display may include a third functional layer disposed over or under the first functional layer Alternatively, the display may include a fourth functional layer disposed over the second functional layer.

Abstract: The present invention relates to solution type silver organo-sol ink for forming electrically conductive patterns. The present invention provides silver organo-sol ink of solution type for forming electrically conductive pattern comprising effective amount of silver aromatic carboxylate and a reactive organic solvents, which can form chelate or complex with silver, are, for example, organic solvents having keton, mercapto, carboxyl, aniline or sulfurous functional group, substituted or unsubstituted. By the present invention, silver organo-sol ink of solution type basically having higher content of silver is obtained. The solution type ink of the present invention can be used for forming conductive patterns in flat panel display such as plasma display panel(PDP) to reduce the numbers of steps for pattern forming drastically.

Abstract: Digital ink-jet glass printer for printing flat glass boards with glass based ink is disclosed, comprising; (a) horizontal support for a glass board to be printed; (b) at least one digital ink-jet printing head moveable from above the area of a glass board supported by the horizontal support by means of a respective moving mechanism, the printing head is capable of moving above the glass board and injecting glass based ink according to positioning and injecting commands received from a computer or controller; (c) ink supply system in liquid communication with the at least one printing head.

Abstract: An aqueous-based UV-curable fluid composition for use in a micro-fluid ejection device. The fluid composition includes a mixture of poly-functional compounds, a colorant compound, a photo-initiator and less than about 50 weight percent water based on a total weight of the fluid composition, wherein the fluid composition is substantially devoid of volatile organic carrier fluids.

Abstract: Methods and systems for applying nanowires and electrical devices to surfaces are described. In a first aspect, at least one nanowire is provided proximate to an electrode pair. An electric field is generated by electrodes of the electrode pair to associate the at least one nanowire with the electrodes. The electrode pair is aligned with a region of the destination surface. The at least one nanowire is deposited from the electrode pair to the region. In another aspect, a plurality of electrical devices is provided proximate to an electrode pair. An electric field is generated by electrodes of the electrode pair to associate an electrical device of the plurality of electrical devices with the electrodes. The electrode pair is aligned with a region of the destination surface. The electrical device is deposited from the electrode pair to the region.

Abstract: The present invention is directed to a photoinitiator composition comprising two different cationic photoinitiators and a photocurable composition comprising said photoinitiator composition. Moreover, the present invention relates to the use of the photoinitiator composition and the photocurable composition. Furthermore, the present invention relates to a process for producing a three dimensional article.

Abstract: Compositions for use in ink jet printing onto a substrate comprising a water based dispersion including metallic nanoparticles and appropriate stabilizers. Also disclosed are methods for the production of said compositions and methods for their use in ink jet printing onto suitable substrates.

Abstract: A purpose is to provide a solid electrolyte battery including a low-resistance solid electrolyte layer, a vehicle mounting this solid electrolyte battery, a battery-mounting device, and a manufacturing method of the solid electrolyte battery. A solid electrolyte battery 1 includes a positive active material layer 21 containing positive active material particles 22, a negative active material layer 31 containing negative active material particles 32, and a solid electrolyte layer 40 interposed therebetween. The solid electrolyte layer contains a sulfide solid electrolyte SE but no resin binder and self-maintains its shape by a bonding force of the sulfide solid electrolyte. The solid electrolyte layer has a layer thickness 40T of 50 ?m or less and an area 40S of 100 cm2 or more.

Abstract: Low viscosity, radiation curable fluid formulations that can be used advantageously as radiation curable, inks. The formulations are easily prepared for use in ink jet systems. The viscosity of the compositions is low enough so that conventional solvent is not required in order to satisfy the requisite low ink jet viscosity specifications. After curing, the compositions form durable, weatherable, abrasion resistant, printed images on a wide variety of porous and nonporous substrates. The formulations are very suitable for outdoor printing applications, especially for printing outdoor graphics onto a variety of surfaces, including vinyl or other polymer films commonly used for signage, retroreflective signage or other retroreflective items.

Abstract: An apparatus may include a nano-particle layer and/or a linking agent layer. An apparatus may include a nano-particle layer bonded to a linking agent layer. An apparatus may include a substantially smooth surface. An apparatus may include a nano-particle layer and/or a linking agent layer which may be electrostatically etched to form a precise etched portion. An apparatus may have a precise etched portion including a pattern, for example a coil print pattern having a bend. An apparatus may include a nano-particle layer and/or a linking agent layer bonded to a shape memory layer. An apparatus may include a relatively even distribution of heat and/or current, and/or a predetermined heat and/or current path. A method may include forming a nano-particle layer and/or a linking agent layer. A method may include electrostatically etching a nano-particle layer and/or a linking agent layer.

Abstract: An object of the present invention is to provide a method for stably forming an artificial lipid membrane while suppressing the leakage and evaporation of an electrolytic solution. The present invention is an artificial lipid membrane forming method for forming an artificial lipid membrane using an artificial lipid membrane forming apparatus. The artificial lipid membrane forming apparatus comprises a first chamber, a second chamber, a dividing wall, and an artificial lipid membrane forming portion. Each of the first chamber and the second chamber has a capacity of not smaller than 10 pl and not larger than 200 ?l. The artificial lipid membrane forming method of the present invention comprises the steps of: preparing the artificial lipid membrane forming apparatus; adding to the first chamber a first electrolytic solution having a viscosity of not lower than 1.

Abstract: The present invention relates to a method for manufacturing a light-emitting device. At least one of a light-emitting film forming step, a conductive film forming step and an insulating film forming step is carried out while holding a substrate in a manner that an angle subtended by a surface of the substrate and the direction of gravity is within a range of from 0 to 30°.

Abstract: A method for fabricating thin DITO or SITO touch sensor panels with a thickness less than a minimum thickness tolerance of existing manufacturing equipment. In one embodiment, a sandwich of two thin glass sheets is formed such that the combined thickness of the glass sheets does not drop below the minimum thickness tolerance of existing manufacturing equipment when thin film process is performed on the surfaces of the sandwich during fabrication. The sandwich may eventually be separated to form two thin SITO/DITO panels. In another embodiment, the fabrication process involves laminating two patterned thick substrates, each having at least the minimum thickness tolerance of existing manufacturing equipment. One or both of the sides of the laminated substrates are then thinned so that when the substrates are separated, each is a thin DITO/SITO panel having a thickness less than the minimum thickness tolerance of existing manufacturing equipment.

Abstract: A planar array having plurality of biological recognition molecules including at least two types of biological recognition molecules distributed about a substrate is disclosed. A first type of biological recognition molecules is distributed according to a first frequency and a second type of biological recognition molecules is distributed according to a second frequency. Another planar array having a plurality of biological recognition molecules including at least two kinds of biological recognition molecules is disclosed. The recognition molecules are distributed about a substrate with first kind of biological recognition molecules distributed at a first height or depth relative to a surface of the substrate and a second kind of biological recognition molecules distributed at a second height or depth relative to the surface.

Abstract: The invention provides a radiation-curable polymerizable composition of the invention having (a) a hindered amine compound having no nucleophilic moiety in a molecule, (b) a photo-acid generating agent and (c) a cationic polymerizable monomer. The invention further provides an ink composition formed of the radiation-curable polymerizable composition, a method for ink jet recording having: ejecting the ink composition onto a recording medium by using an ink jet recording apparatus and irradiating the ejected ink composition so as to cure the ink composition, and a printed material obtained thereby. The invention further provides a method for forming a planographic printing plate having: ejecting the ink composition onto a hydrophilic recording medium by using an ink jet recording apparatus; and irradiating the ejected ink composition so as to cure the ink composition for forming a hydrophobic region, and a planographic printing plate obtained thereby.

Abstract: The present invention provides a system which shortens the scanning time with an ink jet head for forming a pattern of filter elements of a color filter, picture element pixels of an electroluminescence (EL) device, or the like. An apparatus for producing a color filter can include a plurality of filter elements arranged on a substrate. The apparatus can further include a plurality of heads each having a nozzle row having a plurality of nozzles arranged, an ink supply device for supplying a filter element material to the heads, a carriage supporting the heads arranged thereon, a main scanning driving device for moving the carriage by main scanning in the X direction, and a sub-scanning driving device for moving the carriage by sub-scanning in the Y direction. The carriage supports the plurality of heads each of which is inclined at an in-plane inclination angle ?.

Abstract: This invention relates to an ink jet ink composition comprising an aqueous medium and at least two different polymers, a first polymer and a second polymer, having a weight average acid number of 70 to 200. In one embodiment the ink is substantially colorless.

Abstract: Disclosed is a radiation curable ink containing a fluorescent material that upon exposure to activating energy fluoresces such that an image that was not visible prior to exposure to the activating energy becomes visible. Also disclosed are an ink jet system and a process printing the disclosed radiation curable ink.