Abstract: An ink jet ink composition including water, humectant and a metallized, phthalocyanine colorant, the metallized, phthalocyanine colorant having the formula: MPc(SO3X)a(SO2NRR′)b wherein: M represents a metal; Pc represents a phthalocyanine nucleus; each X independently represents hydrogen, alkali metal or an organic cation; a is from 0 to 3; b is from 1 to 4; each R independently represents a substituted or unsubstituted alkyl group having from 1 to about 15 carbon atoms, a substituted or unsubstituted aryl group, or a substituted or unsubstituted heterocyclic group; and each R′ independently represents R or hydrogen; with the proviso that a +b is an average of from 2 to 4; and with the further proviso that at least about 50 wt. % of the metallized, phthalocyanine colorant is present in the composition as particles.

Abstract: An ink composition comprising: an aqueous medium; a high boiling organic solvent dispersed in the aqueous medium; an oil-soluble dye dissolved in the high boiling organic solvent; and a compound represented by the formula (I) defined in the specification: wherein the oil-soluble dye is represented by the formula (II) defined in the specification.

Abstract: Dye preparations comprising, based in each case on the weight of the preparation, from 0.1 to 30% by weight of one or more dyes from the class of the mono- or polyazo dyes containing no acidic groups, from 0.1 to 20% by weight of a dispersant based on an arylsulfonic acid-formaldehyde condensate or from 0.1 to 20% by weight of a water-soluble dispersant based on alkoxylated phenols with or without water, and their use as inks in the inkjet process and for textile sublimation transfer printing.

Abstract: A scented ink composition suitable for use in ink jet printing which generates aromas during printing and produces scented printed articles such as greeting cards.

Abstract: Disclosed herein is a front face erasable microcapsule magnetophoretic display sheet having a support and a solid dispersion layer provided on one surface of the support and composed of microcapsules having an average particle diameter of 50 to 650 &mgr;m, in which a liquid dispersion, a white pigment, additives and magnetic particles are encapsulated, and a binder. The magnetic particles include at least two kinds of magnetic particles different in particle diameter from each other. An erasing magnet for front face erasing and a writing magnet for front face erasable microcapsule magnetophoretic display sheet are also disclosed.

Abstract: The present invention provides microparticles that create permanent tissue markings, such as tattoos, designed in advance for change and/or removal on demand, as well as methods for implanting the microparticles in tissue and changing and/or removing the resulting markings. Colored microparticles are constructed with specific electromagnetic absorption and/or structural properties that facilitate changing and/or removing tissue markings made using the microparticles by applying specific energy (such as electromagnetic radiation from a laser or flash-lamp) to the tissue marking site.

Abstract: The present invention provides microparticles that create permanent tissue markings, such as tattoos, designed in advance for change and/or removal on demand, as well as methods for implanting the microparticles in tissue and changing and/or removing the resulting markings. Colored microparticles are constructed with specific electromagnetic absorption and/or structural properties that facilitate changing and/or removing tissue markings made using the microparticles by applying specific energy (such as electromagnetic radiation from a laser or flash-lamp) to the tissue marking site.

Abstract: An irreversible heat-sensitive composition comprises a mixture of a granular or powdery heat-fusible substance having a melting point corresponding to a temperature to be recorded and a granular or powdery dyestuff diffusible into the fused heat-fusible substance through dispersion or dissolution. A heat-sensitive ink comprises the irreversible heat-sensitive composition and an ink vehicle capable of diffusing the fused heat-fusible substance therein. A heat-sensitive ink according to another embodiment comprises microcapsules, which encapsulate the irreversible heat-sensitive composition. A heat-sensitive indicator comprises a substrate provided thereon with a printed heat-sensitive ink, the heat-sensitive ink being one of these heat-sensitive inks.

Abstract: An ink composition containing a micro-encapsulated UV absorber. The ink composition includes a micro-encapsulated UV absorber, a dispersant, an emulsifer, at least one colorant, and a medium. The present invention adds a micro-encapsulated UV absorber to inkjet ink or screen printing ink. The micro-encapsulated UV absorber is suitable for either a water-based system or solvent-based system. The micro-encapsulated UV absorber increases the light-fastness and maintains longer-term light resistance because the UV absorber is gradually released from the microcapsule. The ink composition of the present invention provides excellent printing quality when used in inkjet or screen printing.

Abstract: The present invention relates to a liquid dispersion of metal ultrafine particles, which can maintain a desired flow ability even at a high concentration, which is free of any aggregation between fine particles and which can be concentrated. This liquid dispersion is used in, for instance, multilayer distributing wires of, for instance, IC substrates and internal distributing wires of semiconductor devices. If using, as a dispersant, at least one member selected from the group consisting of alkylamines, which are primary amines and whose main chain contains 4 to 20 carbon atoms, carboxylic acid amides and amino-carboxylic acid salts, metal ultrafine particles having a particle size of not more than 100 nm are individually or separately dispersed in the resulting liquid dispersion.

Abstract: The present invention provides microparticles that create permanent tissue markings, such as tattoos, designed in advance for change and/or removal on demand, as well as methods for implanting the microparticles in tissue and changing and/or removing the resulting markings. Colored microparticles are constructed with specific electromagnetic absorption and/or structural properties that facilitate changing and/or removing tissue markings made using the microparticles by applying specific energy (such as electromagnetic radiation from a laser or flash-lamp) to the tissue marking site.

Abstract: A composition of a fragrant ink, at least comprising a microcapsule compound, a colorant, a media, a dispersing agent, and an emulsifier, and a preparation method thereof are disclosed. The microcapsule compound encapsulates a fragrant agent for providing the fragrant ink with fragrance. The colorant provides the fragrant ink with at least one color. The media is used as a solvent. The dispersing agent is for evenly dispersing the microcapsule compound in the media. The emulsifier emulsifies the fragrant agent released from the microcapsule compound and evenly disperses the fragrant agent in the media.

Abstract: This invention relates to a liquid composition adapted to be applied to a recording medium with ink containing a multi-color to form a colored section on the recording medium. The liquid composition contains fine particles reactive relative to the solvent and the coloring material in ink. When processed in particular steps, it produces aggregates of fine particles showing a specific surface area between 70 and 250 m2/g as determined by the BET nitrogen adsorption/desorption method.

Abstract: The present invention relates to a liquid composition for use in forming a colored portion by imparting it together with an ink containing a colorant to a recording medium. The liquid composition includes at least a solvent and fine particles reactive with the colorant and, in which the fine particles in the liquid composition have an average particle diameter in a range of 30 to 200 nm, and a 10% cumulative value of scatting intensity of 10 nm or more and 90% cumulative value of scattering intensity of 300 nm or less, when measured by a dynamic light scattering method.

Abstract: Fine colored particles include a dye adsorbed on metal oxide fine particles having a nanometer size, and stabilized with an organic compound having an ionic group. Thus, fine colored particle having a nanometer size having good color properties, transparency and storage stability can be produced with high reproducibility.

Abstract: The conductive resin composition contains silver powder that is a mixture of spherical particles and dendrite particles dispersed in binder resin, wherein the content (% by volume) of the spherical particle is larger than the content of the dendrite particle so that a conductive path is formed by silver powder of spherical particles, and dendrite particles are interposed between spherical particles.

Abstract: The present invention provides recording media comprising nanoparticles, methods of stabilizing recording media against electromagnetic radiation (including ultraviolet radiation and radiation in the visible wavelength range), methods for enhancing the substrate independent durability performance of recording media, and methods for color density and hue control. The recording media deliver improved color, better color density control, improved printability, enhanced durability, and increased lightfastness, but also are capable of being printed on all substrates including woven and non-woven fabrics and paper products, without special treatment or other limitations.

Abstract: An ink is provided which is capable of giving higher density of the printed image and has improved color developability with the light fastness and image stability maintained, and suppressing occurrence of bleeding in color image formation. The ink contains a capsuled coloring material constituted of a water-insoluble coloring material and an organic polymer covering the coloring material, the capsuled coloring material containing the organic polymer at a content ranging from 1% by weight to 20% by weight.

Abstract: An ink composition including a colorant; and a solvent, wherein a zeta potential 2 between the colorant and a material selected from the group consisting of silicon, glass, silicon oxide, titanium oxide, chromium oxide, titanium nitride, silicon nitride, zirconium and polyimide is from 0 to −50 mV at a pH of from 6.5 to 11.5. A corrosion inhibitor is preferably added to the ink composition to adjust the zeta potential 2. An ink cartridge containing the ink which optionally includes a recording head discharging the ink to form an image on a recording material, wherein the zeta potential 2 between the colorant in the ink and a material of the recording head contacting the ink is from 0 to −50 mV at a pH of from 6.5 to 11.5. An inkjet recording apparatus including the ink cartridge and a carriage carrying the ink cartridge.

Abstract: The problem is to provide a thermosensitive color-changing dry offset ink, having no problem in an ink transferability and an excellent printing characteristics.

Abstract: A composition including: a plurality of microcapsules each including one to five particles in a liquid droplet, and a complex coacervation induced shell encapsulating the liquid droplet and the one to five particles.

Abstract: An encapsulation process including: (a) forming an emulsion composed of a continuous phase comprising a first liquid, a cationic material, and an anionic material, and a disperse phase composed of a plurality of droplets of a second liquid, wherein a number of the droplets includes therein one to five particles; and (b) inducing complex coacervation of the cationic material and the anionic material to form a shell around each of the droplets.

Abstract: A scented ink composition suitable for use in ink jet printing which generates aromas during printing and produces scented printed articles such as greeting cards.

Abstract: An ink composition comprising: an aqueous medium; a high boiling organic solvent dispersed in the aqueous medium; an oil-soluble dye dissolved in the high boiling organic solvent; and a compound represented by the formula (I) defined in the specification: wherein the oil-soluble dye is represented by the formula (II) defined in the specification.

Abstract: The invention relates to a liquid composition measurement method. One embodiment of the method comprises the steps of: i) subjecting a liquid composition containing fine particles and a solvent to the following pretreatment steps (a) to (c) to form an agglomerate of fine particles: (a) evaporating the solvent of the liquid composition at 120° C. for 10 yours in atmosphere, and drying the liquid composition; (b) burning the dried liquid composition resulting from the pretreatment step (a) at 700° C. after raising temperature from 120° C. to 700° C. over one hour; (c) cooling a burned product obtained in the pretreatment step (b) to room temperature, powdering the burned product to obtain agglomerates of the fine particle; and ii) vacuum degassing the agglomerates at 120° C. for 8 hours, and measuring physical properties of pores of the agglomerates by a nitrogen adsorption and desorption method.

Abstract: Water-based ink-jet ink compositions and a method of making them, the compositions being miniemulsions, i.e., an aqueous vehicle containing oil particles with dissolved dye molecules, the oil particles having a diameter below 1 &mgr;m.

Abstract: The invention provides an aqueous ink composition which can be erased relatively easily even after writing with a great tool force. The invention relates to (1) an erasable aqueous ink composition containing at least one colorant, characterized in that the colorant has a mean particle size of not less than 2 &mgr;m and that particles having a size of not more than 1.8 &mgr;m account for not more than 1.6% by weight of said colorant; (2) an erasable aqueous ink composition containing at least one colorant, characterized in that the colorant has a mean particle size of not more than 7 &mgr;m and that particles having a size of not less than 7 &mgr;m account for not more than 0.5% by weight of said colorant and (3) an erasable aqueous ink composition containing at least one colorant, characterized in that the colorant has a mean particle size of 2 to 7 &mgr;m, that particles having a size of not more than 1.8 &mgr;m account for not more than 1.

Abstract: Ink for an electrostatic ink jet printer in which, inter alia, the ink and its insulative solvent and color material particle have the following properties: the ink has a volume resistivity of 109 to 1012 &OHgr;cm and a viscosity of 2 to 20 cp; the insulative solvent has a volume resistivity equal to or more than 1010 &OHgr;cm; and the color material particle has an average diameter of between 0.1 and 2 &mgr;m, an absolute value for the ratio (&xgr; electric potential/viscosity) between 10 to 100 (mV/cp), and an absolute value for the &xgr; electric potential of 30 mV to 200 mV. By means of these conditions, the ink provides higher density images, especially at faster printing speeds.

Abstract: A microbead comprising at least one thermoplastic polymers having distributed one or more compounds which are pigment precursors, the melting temperature of the lowest-melting polymer of the microbead being at least higher than the lowest temperature required to transform all pigment precursors in the microbead into the respective pigments.

Abstract: A scented ink composition suitable for use in ink jet printing which generates aromas during printing and produces scented printed articles such as greeting cards.

Abstract: Chroma is increased, color-to-color bleed is reduced, and edge acuity is increase for dye-based inks by an underprinting technique. A dye-based ink-jet ink printing system is provided, comprising cyan, yellow, and magenta inks, each ink contained in a separate ink pen. Each ink contains at least one water-soluble dye and vesicles. The vesicles are present in an amount sufficient to contain a substantial fraction of dye molecules within the water pool of the vesicles. The vesicles formed from a surfactant having a first polarity. The printing system further comprises an additional pen containing a fixer having a second polarity, opposite to the first polarity. Further, an ink-jet printer that includes the dye-based ink-jet ink printing system is configured to print the fixer on a print medium, followed by printing at least one ink on the fixer. A method for improving chroma, color-to-color bleed, and edge acuity in a dye-based ink-jet ink.

Abstract: An ink composition suitable for use in ink jet printing comprising a coloring agent and carrier therefor which additionally contains a magneto-rheological fluid to control the viscosity and flow properties of the ink composition during use.

Abstract: The present invention relates to a water-soluble addition polymer which is produced from a carboxylated diol represented by the following general formula (I) and a polyisocyanate and has an acid value of 100 or 250, and an aqueous ink using this polymer as a dispersant for a disperse dye: wherein the residue A is an aromatic, alicyclic or aliphatic polybasic acid residue, and the residue B is a trivalent aliphatic alcohol residue.

Abstract: A process for homogeneously dispersing at least one reactant in a fluid matrix, characterized in that capsules of a first type containing the reactant(s) are prepared with a first encapsulation product and capsules of a second type containing the fluid matrix are prepared with a second encapsulation product which is compatible with the first, these two types of capsules bearing electric charges of opposite polarity, the capsules of the two types are combined by electric attraction and the first and second encapsulation products are removed so as to obtain a composite material consisting of the fluid matrix containing the reactant(s) in homogeneous dispersion form, and products obtained according to this process.