Abstract: An ink compatibility including a dye and surface functionalized photocatalytically active semiconductor nanoparticles is provided. This ink composition enables the reuse of a print substrate, because the surface functionalized photocatalytically active semiconductor nanoparticles bleach the dye under an activating radiation.

Abstract: A low-temperature fired ceramic circuit board with little warpage, few conductor wrinkles, low hygroscopicity, excellent dielectric properties, and a glass-free flat surface formed by simultaneously firing a conductor paste and a green sheet at 800 to 900° C. The green sheet comprises (1) glass powder including 35 to 39 wt. % SiO2, 9 to 17 wt. % Al2O3, 21 to 40 wt. % B2O3, 10 to 20 wt. % R?O (R? being at least one of Mg, Ca, and Ba), 0.2 to 2 wt. % Li2O, and 0.5 to 2 wt. % MO2 (M being at least one of Ti and Zr), and (2) alumina powder, the weight ratio of glass powder to alumina powder being 4:6 to 6:4. The conductor paste comprises Ag-containing metal particles, binder, and a heat decomposable alkali metal compound, with 0.13 to 7.8 alkali metal atoms in the paste per 100 metal atoms in the particles.

Abstract: According to one embodiment, an erasable inkjet ink includes a leuco dye, a non-water-soluble developer, and a solvent containing an alcohol and water. The amount of the water is 7 to 25% by mass of the solvent.

Abstract: Disclosed are photoluminescent formulations, comprising an effective amount of photoluminescent phosphorescent materials, which exhibit high luminous intensity and persistence. Also disclosed are photoluminescent objects formed by applying at least one photoluminescent layer, formed from photoluminescent formulations, to preformed articles. Further disclosed are methods for creating photoluminescent objects.

Abstract: A phase change ink compositions, comprising a novel colorant wax to prevent and/or reduce printhead and nozzle contamination in ink jet printers caused by drooling and faceplate staining. In particular, there is provided novel colorants containing acid groups for use in phase change ink compositions and which are compatible with phase change ink components.

Abstract: A method and composition for transforming a latent physiological biometric into a visible physiological biometric are provided, the method comprising: providing a latent biometric disposed on a surface of an article, wherein said biometric comprises at least one eccrine-derived compound; contacting said latent biometric with a developing solution, wherein said developing solution comprises at least one imaging reagent selected from ninhydrin and 1,8-diazafluoren-9-one and a carrier solvent comprising at least one C3-C4 hydrofluorocarbon; and reacting said imaging reagent with said eccrine-derived compound to produce a visible physiological biometric.

Abstract: According to one embodiment, a liquid ink includes a leuco dye, a developer, and a solvent. The developer is selected from wherein X1 is selected from H and CH3, X2 is selected from H and OH, X5 is selected from C(CH3)2 and CO, and X4 is selected from phenyl group and alkyl group.

Abstract: A process for removing ink from a printed media substrate. Such process includes the step of providing a media substrate including an ink printed image wherein the ink composition or the media substrate contains photolabile entities. Then the process includes the step of applying UV light on the printed substrate wherein the emitted UV light has a wavelength value which is below the threshold wavelength of the photolabile entities.

Abstract: A nanoscale pigment particle composition includes a fluorescent compound, such as a benzothioxanthene pigment, including at least one functional moiety, and a stabilizer compound including at least one functional group, wherein the functional moiety associates non-covalently with the functional group; and the presence of the associated stabilizer limits the extent of particle growth and aggregation, to afford nanoscale-sized particles.

Abstract: Phosphor and fluorescent compositions and methods of producing them are provided.

Abstract: An ink including stabilized magnetic single-crystal nanoparticles, wherein the value of the magnetic anisotropy of the magnetic nanoparticles is greater than or equal to 2×104 J/m3. The magnetic nanoparticle may be a ferromagnetic nanoparticle, such as FePt. The ink includes a magnetic material that minimizes the size of the particle, resulting in excellent magnetic pigment dispersion stability, particularly in non-aqueous inkjet inks. The smaller sized magnetic particles of the ink also maintains excellent magnetic properties, thereby reducing the amount of magnetic particle loading required in the ink.

Abstract: An inkjet ink composition, and in particular, invisible ink printable with an inkjet printing device. The present embodiments provide a water-based invisible ink that can be detected by using a long wavelength ultraviolet (UV) light and is easier and safer to use than other sources used to detect known invisible inks.

Abstract: Printing inks for offset and/or letterpress printing which comprise NIR absorbers, and solubility of the NIR absorber in the printing ink is at least 0.1% by weight. NIR absorbers consisting of cyanine cation with an anion which has long-chain alkyl or aralkyl groups. Use of such printing inks for printing processes in which the curing of the printing ink is promoted by using IR lasers. NIR absorbers comprising a cyanine cation with an anion which has long-chain alkyl or aralkyl groups.

Abstract: A correcting fluid with a colored drying indicator that includes as fluorescent dye, sodium 8-hydroxy-1,3,6-pyrenetrisulfonate and a good solvent for the fluorescent dye, in which the solubility of the fluorescent dye at 20° C. is at least equal to 0.1 g/l, and, a poor solvent for the fluorescent dye, in which the solubility of the fluorescent dye is less than or equal to 0.01 g/l at 20° C., the poor solvent being miscible with the good solvent for the fluorescent dye.

Abstract: The invention provides a discolorable ink composition which is irreversibly erasable by heating to about 40° C. to 120° C. A discolorable ink composition, where an electron-donating color-forming organic compound and an electron-accepting compound are incorporated in wax particles, whereby the electron-donating color-forming compound in a state color-developed by the electron-accepting compound is separated from a decolorizer and kept in the color-developed state, while when the wax is liquefied by heating, the decolorizer reacts with the electron-accepting compound to convert the electron-donating color-forming organic compound into a decolorized state.

Abstract: Composition including an oleophilic base ink composition having dispersed therein particles of an infrared-absorbing material wherein the infrared-absorbing material is selected from reduced indium tin oxide, titanium nitride, zirconium nitride, molybdenum metal, copper chromate, lanthanum hexaboride, neodymium oxide, neodymium chloride, dysprosium oxide and praseodymium oxide.

Abstract: A system, method and apparatus is disclosed for coloring a substantially wicking substrate comprising applying to a substantially wicking substrate an ink comprising a first dye and a second dye to define a region of reference; applying a first solvent to the substantially wicking substrate to move the first dye and the second dye within the body of the substantially wicking substrate; moving the two dyes in a defined direction to carry the two dyes outside of the defined region to color an area of the wicking substrate; coloring at least a portion of the substantially wicking substrate by allowing the first solvent to move through a portion of the first dye for a first distance from the defined point of origin of the ink and the second dye a second distance from the defined point of origin of the ink wherein the first distance is sufficiently different from the second distance to recognize a separation between the first dye and the second dye thereby coloring the substantially wicking substrate outside of th

Abstract: There is described an optical-effect-producing medium comprising a carrier medium (1) containing or comprising pigment particles (10) having at least one optically responsive pigment or dye (100) that responds to incident electromagnetic radiation of at least a selected excitation wavelength or wavelength band (?EX) by producing an optical response in the visible or near-visible spectrum. A refractive index (n1) of the carrier medium (1) and a refractive index (n2; n3) of the pigment particles (10) are selected to maximise the amount of incident electromagnetic radiation reaching the said at least one optically responsive pigment or dye (100). Also described is the use of such optical-effect-producing medium to produce an optically responsive feature, especially for security, authentication and/or identification purposes, as well as objects comprising such an optically responsive feature.

Abstract: Disclosed is a hand-held photochromic marking implement including a photochromic colorant and solid phase colorant carrier which can be used in direct-to-media marking and a method of forming same.

Abstract: The invention relates to a security material comprising a carrier and at least one photochromic Protein and/or a mutein of a photochromic protein. The security material is characterized in that it comprises at least one irreversible photosensitive layer on the carrier, and the at least one photochromic protein and/or mutein is contained at least in the at least one photosensitive layer and/or in an optional additional layer. The inventive security material is also characterized in that it is highly forgery-proof, the photochromic biomolecule cannot be removed therefrom in a usable form, and the photochromic biomolecule does not need to be supplied to a large group of clients.

Abstract: The invention relates to a marker solution which is to be applied by means of an inkjet printer and contains (i) at least one organic solvent that has a greater steam pressure than water at 20° C. and a water content of less than 50 percent (v/v), (ii) predefined first synthetically produced nucleic acids, and (iii) a nucleic acid-complexing, organic auxiliary agent as components.

Abstract: The invention concerns a method for marking a material characterized in that it consists in incorporating into the material: either a phosphor capable of producing, following excitation, two light emissions whereof the respective wavelengths and the emission decay times are different, or several phosphors capable of producing, following excitation, a light emission whereof the wavelength and the emission decay time are different from the wavelength and emission decay time of the other or other phosphors. The material can in particular be of the paper, board, paint, textile, ink, glass or macromolecular material type.

Abstract: A system, method and apparatus is disclosed for coloring a substantially wicking substrate comprising applying to a substantially wicking substrate an ink comprising a first dye and a second dye applying a first solvent to the substantially wicking substrate to move the first dye and or the second dye in a defined direction coloring at least a portion of the substantially wicking substrate by allowing the first solvent to move through a portion of the first dye for a first distance from the point of origin of the ink and the second dye a second distance from the point of origin of the ink wherein the first distance is sufficiently different from the second distance to visualize a separation between the first dye and the second dye shaping a portion of the colored wicking substrate into a form and affixing the form onto a support for display.

Abstract: Embodiments of a printed security mark and a process are disclosed.

Abstract: The invention is directed to a composition having a carrier matrix, and a particulate luminescent composition dispersed therein, the particulate luminescent composition comprising a rare-earth-doped solid-state solution of alkaline earth fluorides represented by the chemical formula REx(CaaSrbBac)1?xF2+x?2yOy wherein RE represents a three-valent rare-earth element, 0.005?x?0.20, and 0?y?0.2, a+b+c=1, with the proviso at least two of a, b, and c are not equal to zero; the particulate luminescent composition exhibiting a luminescence spectrum having a plurality of intensity peaks at characteristic wavelengths. It is further directed to a process by contacting a surface with the composition and articles made therefrom.

Abstract: A near infrared dye composition includes a microcapsule that includes an inner core region and an outer shell. The inner core region includes a cross-linked polymer-near infrared dye aggregate. The outer shell includes nanoparticles.

Abstract: The invention relates to a composition for coding having at least one pair of mutually associated luminescent substances having first and second luminescent substances which emit in a joint emission range located outside the visible spectral range. The emission spectra of the first and second luminescent substances overlap in at least a subrange of the stated emission range such that the emission spectrum of the first luminescent substance is complemented by the emission spectrum of the second luminescent substance.

Abstract: A particulate luminescent composition is disclosed that, when excited by electromagnetic radiation at a first frequency, emits electromagnetic radiation at a second frequency equal to or within 1500 cm?1 of the first frequency. The luminescent composition comprises substantially spherical particles having a weight average particle size of less than about 10 ?m and a particle size distribution such that at least about 90 weight percent of the particles are not larger than twice the average particle size.

Abstract: Disclosed are photoluminescent compositions containing photoluminescent phosphorescent materials and photoluminescent fluorescent materials whose emission signature lies partly or fully in the infrared region of the electromagnetic spectrum. Also disclosed are photoluminescent compositions containing photoluminescent phosphorescent materials and photoluminescent fluorescent materials whose emission signature lies partly or fully in the infrared region of the electromagnetic spectrum which are high in intensity and high in persistence.

Abstract: Printing inks for offset and/or letterpress printing which comprise NIR absorbers, and solubility of the NIR absorber in the printing ink is at least 0.1% by weight. NIR absorbers consisting of cyanine cation with an anion which has long-chain alkyl or aralkyl groups. Use of such printing inks for printing processes in which the curing of the printing ink is promoted by using IR lasers. NIR absorbers comprising a cyanine cation with an anion which has long-chain alkyl or aralkyl groups.

Abstract: The invention discloses a method for marking and authenticating a security article, such as a banknote, a document, a ticket, a foil, a thread, a label, a card, or a commercial good, so as to provide for an easy authentication of said article by a machine, such as a currency acceptor, a ticket validator, or a hand-held authentication device. According to the disclosed method, the security article carries a marking in the form of a user-defined design, wherein said marking comprises dyes or pigments belonging to an extended, or hyperchromic color space which is not reproducible by commercially available, 4-color desktop reproduction equipment. The authentication of said marking includes the mathematical transformation of the crude spectral information to statistically independent hyper-color coordinates, and the comparison of selected hyper-color coordinates with corresponding reference values.

Abstract: A no-mess water-based ink including a composition including water, an organic solvent, a coloring agent dissolved in the organic solvent, an emulsifier and a thickening agent for use in conjunction with a specially treated substrate containing a color developer.

Abstract: The present invention is a method which erase information printed on a recording medium if necessary and thus reuse the recording medium, and includes 1) decolorable ink compositions which are not erased during the use but erased by a dye readily decolorable by a decolorant, 2) a decolorant composition including a thermal initiator or photoinitiator, and 3) a method for coating the decolorant and applying heat or irradiating UV to erase the dye. According to the present invention, it is possible to prepare various writing inks, and particularly, when applied to recording medium with a magnetic stripe as well as the general purpose papers, it is possible to reduce the production cost significantly, obtain a large import substitution effect of the magnetic ink all of which are imported, and largely reduce the environmental pollution.

Abstract: An ink composition includes C.I. Acid Red 52, C.I. Acid Red 92, C.I. Direct Yellow 87, water, a water-soluble organic solvent, tetraethylene glycol monoethylhexyl ether, and triethylene glycol monobutyl ether.

Abstract: The invention relates to a composition for a coding forming at least part of a coding system having a luminescent basic substance and at least one luminescent additive, the composition of the coding being formed by the presence or absence of a luminescent additive and/or the type of additives and/or the number of additives.

Abstract: A fluorescent ink composition comprising functionalized fluorescent nanocrystals, an aqueous-based ink carrier comprising water or a water-based solution, and a binder. Also provided are methods of providing an image or a security mark on a substrate for subsequent identification by applying a fluorescent ink composition onto the substrate.

Abstract: Disclosed is a hand-held photochromic marking implement including a photochromic colorant and solid phase colorant carrier which can be used in direct-to-media marking and a method of forming same.

Abstract: Phase change inks comprising a carrier and a colorant of the formula wherein R1, R2, R3, R4, R5, R6, R, Y, CA, A-, m and n each, independently of the others are as defined herein.

Abstract: A no-mess water-based ink including a composition including water, an organic solvent, a coloring agent dissolved in the organic solvent and an emulsifier for use in conjunction with a specially treated substrate containing a color developer.

Abstract: Phase change ink comprising carrier and colorant of formula wherein M is atom or group of atoms capable of bonding to central cavity of phthalocyanine molecule, wherein axial ligands optionally can be attached to M, each R? is a substituent, each n is 0, 1, 2, 3, or 4, each R? is a substituent, each m is 0, 1, 2, or 3, each R is alkylene, arylene, arylalkylene, or alkylarylene, each X is —OH, —COOH, or wherein each Y and each Z is a direct bond, oxygen, or —NR1—, wherein R1 is hydrogen, alkyl, aryl, arylalkyl, or alkylaryl, provided that Z and Y are not both direct bonds connected to a single C?O moiety at the same time, provided that when X is —COOH, R can also be a direct bond, and each Rd is alkyl, aryl, arylalkyl, or alkylaryl.

Abstract: A highlightable mixture, such as an ink, including a colored pigment, an eradicable colorant, and a non-eradicable colorant; a kit including the highlightable mixture and an eradicator fluid; an colorant complex including a colorless or substantially colorless eradicable dye selected from the group consisting of diarylmethane derivatives, triarylmethane derivatives, and methine dyes, and a colored pigment; and methods of applying an eradicator to at least a portion of a marking made with a highlightable mixture, are described herein.

Abstract: The present invention provides a method for the deposition of an ink jet printable composition, to a substrate comprising: depositing an ink composition on a substrate by ink jet printing; wherein said composition comprises: (a) functional material; (b) organic polymer comprising polyvinylpyrrolidone; dispersed in (c) dispersion vehicle selected from organic solvent, water, or mixtures thereof; and wherein the viscosity of said composition is between 5 mPa·s to 50 mPa·s at a temperature of 25 to 35° C.

Abstract: The present invention provides a light-emitting body in which fine phosphor particles are dispersed in an oxide matrix, with the fine phosphor particles containing at least one selected from oxides and oxysulfides as a parent material. When this light-emitting body is dispersed in a resin, a resin composition having excellent transparency can be obtained. This light-emitting body can be produced by: preparing a gel through a sol-gel process in which a raw material solution containing a compound that supplies metal atoms composing the fine phosphor particles is used; and heating the gel at 400° C. or higher, for example. Preferably, the light-emitting body has a shape of a flake or fiber.

Abstract: Disclosed is a phase change ink containing a fluorescent colorant 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 for authenticating a color document using the disclosed phase change ink.

Abstract: The present invention relates to an red luminescent ink composition exhibiting adequate and stable emission intensity under irradiation of ultraviolet rays and high solubility for a resin and an organic solvent. The ink composition of the present invention contains a luminous compound represented by the following formula (1): wherein R is a perfluoroalkyl group having 2 to 20 carbons, L1 and L2 are the same or different and are sulfoxide having a substituted or unsubstituted aryl group or a substituted or unsubstituted an alkyl group.

Abstract: A metallic inkjet ink includes a silver metallic colorant, another colorant and at least one ink vehicle. The other colorant is selected from a pigment, a dye, and combinations thereof. Also disclosed herein is a method of forming the metallic inkjet ink including providing an ink vehicle, adding the silver colorant to the ink vehicle, and adding the other colorant to the ink vehicle.

Abstract: A marking liquid which contains a polymer dispersion with particles which are colored with marking agent, optionally further dyes and marking agents, one or more salts of a polyvalent, in particular bi- or trivalent cation, water and optionally moisture retaining agents and further usual additives, wherein the polymer forming the polymer particles is selected from the group of polyesters, polyester amides, polymers and copolymers based on acrylate or methacrylate with a proportion of free carboxylic acid groups of less than 10% by weight, melamine-formaldehyde-sulfonamide resins and mixtures thereof.

Abstract: Fluorescent magnetic powder in which a fluorescent dye is attached to the particles of magnetic powder is provided.

Abstract: The phase change, curable composition comprises curable monomer, photoinitiator that initiates polymerization of the curable monomer, and phase change agent that provides the composition with an increase in viscosity of at least four orders of magnitude, from a first temperature, the first temperature being from 50° C. to 130° C., to a second temperature, the second temperature being from 0° C. to 70° C., wherein the second temperature is at least 10° C. below the first temperature. A coating over an image may be applied by providing a composition comprising curable monomer at a first temperature; applying the composition over the image, the image being at a second temperature; and exposing the composition to radiation to initiate polymerization of the curable monomer. In this process, the composition has a viscosity at the second temperature that is at least four orders of magnitude greater than its viscosity at the first temperature.

Abstract: Photoluminescent phosphor powders and a method for making phosphor powders. The phosphor powders have a small particle size, narrow particle size distribution and are substantially spherical. The method of the invention advantageously permits the economic production of such powders. The invention also relates to improved devices, such as display devices and lighting elements, incorporating the phosphor powders.