Abstract: A phase change ink composition includes metal nanoparticles, a dispersing agent allowing the metal nanoparticles to be stably dispersed and arranged within the phase change ink composition, and a solvent in which the metal nanoparticles and the dispersing agent are mixed and which comprises at least two sulfur-containing compounds, wherein the phase change ink composition has a melting temperature ranging from 60° C. to 90° C.

Abstract: The present invention provides: a pigment dispersion composition including (A) an organic pigment, (B) a pigment derivative represented by Formula (I) below and (C) a polymer compound having a pigment-adsorptive functional group; a curable color composition including the pigment dispersion composition, a polymerizable compound and a polymerization initiator; and a color filter having a color region formed using the curable color composition and a method for producing the same. Q represents an organic colorant residue; A represents an ethylene group or the like; and R represents a hydroxyl group or a group represented by —NH-A-Z; Z represents —SO3H, —COOH or a salt thereof; and n represents an integer of from 1 to 4. When R represents —NH-A-Z, the structures represented by the two —NH-A-Zs bonded to the triazine ring contained in each of the n partial structures bonded to Q may be the same as each other or different from each other.

Abstract: An ink jet ink is provided which contains at least a coloring material and a water-soluble organic solvent, where the water-soluble organic solvent contains a branched alkanediol having hydroxyl groups at both terminals of its main chain and at least one of a compound represented by the following general formula (1) and a compound represented by the following general formula (2): R1-[A]-R2??General formula (1)

Abstract: An aqueous ink for inkjet recording is provided, which includes water, pigment, a water-soluble organic solvent incorporated at a content of not less than 30% by weight, a surfactant, and 3-methoxy-3-methyl-1-butanol. The surfactant is formed of at least one selected from the group consisting of acetylene glycol-based surfactant and a fluorinated surfactant.

Abstract: An ink composition includes a colorant, a solvent, and an amide compound. Due to the use of the amide compound, the ink composition has effective storage stability and wetness at nozzles and has a low mobility of a colorant due to interaction between the colorant and the amide compound and a high adhesion to paper, thus minimizing bleeding between colors of printed images. In addition, the ink composition has effective color fastness, such as water fastness and dry and wet rubfastness of printed images, on paper, thus providing improved quality and durability of printed images. Further, the ink composition provides improved long-term storage stability. Thus, the ink composition may be used in various applications, such as inks for inkjet printers or printing, coatings, textile printing, making papers, cosmetics, ceramics, and the like.

Abstract: The present invention pertains to an aqueous inkjet ink comprising anionic self-dispersing pigment, a certain mixture of alkali metal cations and a certain humectant. The inks exhibit greatly extended latency.

Abstract: An ink composition which comprises a compound represented by formula (1), which is described in the specification; and a plurality of water-soluble organic solvents, wherein the water-soluble organic solvents contains at least a water-soluble organic solvent having a thioether or sulfoxide moiety in an amount of 10 mass % to 80 mass %, and a recording method which uses the ink composition.

Abstract: An ink composition for inkjet recording, and more particularly, an ink composition for inkjet recording in which bleeding between colors of a printed image is reduced, and dry and wet rub fastness of a printed image are improved. The ink composition includes an oxylate-based compound and an amide compound.

Abstract: An additive comprising an acetylene glycol or ethylene oxide/propylene oxide adduct of acetylene glycol and a sulfur-containing surfactant is added to a dye and water to form an ink composition which exhibits good wetting, penetrating and dispersing properties due to a reduced dynamic surface tension and complies with the environmental problem.

Abstract: The invention provides an ink set for ink-jet recording that is able to form an image having a sufficient optical density and causing no feathering and intercolor bleed within a short period of time while being excellent in reliability of the maintenance unit. The ink set comprises at least a liquid (a) containing a colorant, water soluble solvent and water; a liquid (b) containing a pH adjusting agent, water soluble solvent and water; and a liquid (c). The ink set satisfies any one of the conditions in the first embodiment: (i) the colorant is anionic, (ii) the liquid (b) has a pH of not higher than 6.5, (iii) the liquid (c) has a pH of not lower than 8.0, and (iv) the mixed liquid of the liquid (b) and the liquid (c) in a mass ratio of 1:1 has a pH of not lower than 7; or the second embodiment: (i) the colorant is cationic, (ii) the liquid (b) has a pH of not lower than 8.5, (iii) the liquid (c) has a pH of not higher than 6.

Abstract: An ink composition which comprises a compound represented by formula (1), which is described in the specification; and a plurality of water-soluble organic solvents, wherein the water-soluble organic solvents contains at least a water-soluble organic solvent having a thioether or sulfoxide moiety in an amount of 10 mass % to 80 mass %, and a recording method which uses the ink composition.

Abstract: The present invention is to provide a pigment dispersion composition for a color filter having the excellent pigment dispersing property and dispersion stability, good developing property and reactivity, and an extremely small residue generation amount after development, a production method capable of stably producing such a pigment dispersion composition, and a color filter for a display having a high transmittance and a low light scattering property. A pigment dispersion composition for a color filter containing at least a pigment, a pigment dispersing agent, a binder resin, a reactive compound, and a solvent, wherein the binder resin is a compound having a pigment adsorbing block containing a pigment adsorbing group and not containing a reactive group, and a reactive block containing a reactive group and not containing a pigment adsorbing group, is provided.

Abstract: A method of preparing a polymeric aryl sulfonamide is described which consists of reacting aryl sulfonyl with a polymeric amine in the presence of an acid acceptor. Also, another method of preparing a polymeric aryl sulfonamide is disclosed and consists of: reacting an aryl sulfonyl with a polymeric diamine in the presence of an acid acceptor to result in a linear oligomeric molecule; and reacting the linear oligomeric molecule with a monoamine or an aryl monosulfonyl in the presence of an acid acceptor. The use of polymeric aryl sulfonamides as pigment dipersants and wetting agents is also disclosed.

Abstract: The present invention relates to an antibacterial colorant and a composition that includes the antibacterial colorant. The antibacterial colorant has at least one functional group and at least one antibacterial moiety bound thereto by an ester bond or an amide bond.

Abstract: Disclosed is a phase change ink composition comprising an ink vehicle, a colorant, and a nonpolymeric organic gelator selected from the group consisting of anthracene-based compounds, steroid compounds, partially fluorinated high molecular weight alkanes, high molecular weight alkanes with exactly one hetero atom, chiral tartrate compounds, chiral butenolide-based compounds, bis-urea compounds, guanines, barbiturates, oxamide compounds, ureidopyrimidone compounds, and mixtures thereof, said organic gelator being present in the ink in an amount of no more than about 20 percent by weight of the ink, said ink having a melting point at or below which the ink is a solid, said ink having a gel point at or above which the ink is a liquid, and said ink exhibiting a gel state between the melting point and the gel point, said ink exhibiting reversible transitions between the solid state and the gel state upon heating and cooling, said ink exhibiting reversible transitions between the gel state and the liquid state upon

Abstract: An active ray curable ink-jet ink composition comprising a photo-induced acid generating agent containing an onium salt which does not generate benzene under active ray radiation, and a photopolymerizable compound containing a compound having an oxetane ring in the molecule.

Abstract: The invention relates to colorant preparations containing the following main constituents: A) at least one dispersed (A1) or dissolved (A2) colorant; B) if a colorant corresponding to (A1) is used, a dispersing agent; C) a low-molecular polytetrahydurofurane (C1), optionally mixed with one or more difficult-to-evaporate, water-soluble or water-miscible organic solvents (C2); and D) water.

Abstract: The present invention relates to an antibacterial colorant and a composition that includes the antibacterial colorant. The antibacterial colorant has at least one functional group and at least one antibacterial moiety bound thereto by an ester bond or an amide bond.

Abstract: Ink additives that reduce the deceleration of inks containing a polymer, such as acrylate binders, are disclosed. In accordance with the invention, an ink-jet liquid, an ink-jet liquid set, and the method for using the same are provided, wherein the one of the liquids comprises an aqueous vehicle, and a deceleration-alleviating component. The present formulations are used to formulate ink-jet liquids, and more particularly, to provide enhanced drop ejection performance in inks containing a polymer, such as deceleration (rapid drop velocity degradation during continuous operation of the firing resistor), when the liquid contains a deceleration-alleviating agent, such as, an aromatic glycol ether, a polar solvent and a long alkyl chain surfactant.

Abstract: Disclosed is a phase change ink composition comprising an ink vehicle, a colorant, and a nonpolymeric organic gelator selected from the group consisting of anthracene-based compounds, steroid compounds, partially fluorinated high molecular weight alkanes, high molecular weight alkanes with exactly one hetero atom, chiral tartrate compounds, chiral butenolide-based compounds, bis-urea compounds, guanines, barbiturates, oxamide compounds, ureidopyrimidone compounds, and mixtures thereof, said organic gelator being present in the ink in an amount of no more than about 20 percent by weight of the ink, said ink having a melting point at or below which the ink is a solid, said ink having a gel point at or above which the ink is a liquid, and said ink exhibiting a gel state between the melting point and the gel point, said ink exhibiting reversible transitions between the solid state and the gel state upon heating and cooling, said ink exhibiting reversible transitions between the gel state and the liquid state upon

Abstract: An antibiotic additive and an ink composition including the antibiotic additive include a compound produced by binding of an antibiotic substance having the following formula (I) to a predetermined additive via a chemical reaction. The ink composition includes a colorant, a solvent and an antibiotic additive produced by binding of an antibiotic substance having the following formula (I) to a predetermined additive via a chemical reaction. The antibiotic additive prevents surface dry, improves storage stability and inhibits propagation and growth of bacteria in an ink and has excellent compatibility with a general dye or pigment.

Abstract: A water-based pigment dispersion comprising 100 parts by weight of a pigment, 3 to 30 parts by weight of a sulfonic acid group-containing pigment derivative and water, wherein the sulfonic acid group-containing pigment derivative has only one sulfonic acid group in a molecule of a pigment of which the type is the same as the type of the pigment to be dispersed, the sulfonic acid group forms at least one salt selected from the group consisting of ammonia salt, an organic amine salt and a salt in which at least 15% of the sulfonic acid group is liberated and the rest is a salt with monovalent metal, the content of metal ion having a valence of at least 2 in a solid matter of the above water-based pigment dispersion is 500 ppm or less, and the above pigment is dispersed in water according to electrostatic repulsion due to the sulfonic acid group-containing pigment derivative adsorbed on the particle surface of the pigment, an inkjet recording liquid containing the same and process for the production thereof.

Abstract: The present invention describes an ink composition comprising a liquid vehicle and a modified colored pigment. The modified colored pigment comprises the product of a colored pigment having at least one leaving group and a treating agent. The modified colored pigments are also disclosed, as are processes for producing them.

Abstract: The present invention relates to an ink jet recording ink set comprising a plurality of ink compositions each containing at least a colorant, a water-soluble organic solvent and water; and to a preparation process thereof. The invention is characterized by that the flowing characteristics or dynamic viscoelasticity at 20° C. of each of said plurality of ink compositions are set to satisfy specific conditions. The present invention also relates to an image recording method and recorded matter having an image formed thereon, each of the image being formed using the above-described ink jet recording ink set or an ink jet recording ink set prepared by the above-described process.

Abstract: Ink additives that reduce the deceleration of inks containing a polymer, such as acrylate binders, are disclosed. In accordance with the invention, an ink-jet liquid, an ink-jet liquid set, and the method for using the same are provided, wherein the one of the liquids comprises an aqueous vehicle, and a deceleration -alleviating component. The present formulations are used to formulate ink-jet liquids, and more particularly, to provide enhanced drop ejection performance in inks containing a polymer, such as deceleration (rapid drop velocity degradation during continuous operation of the firing resistor), when the liquid contains a deceleration -alleviating agent, such as, an aromatic glycol ether, a polar solvent and a long alkyl chain surfactant.

Abstract: The present invention describes an ink composition comprising a liquid vehicle and a modified colored pigment. The modified colored pigment comprises the product of a colored pigment having at least one leaving group and a treating agent. The modified colored pigments are also disclosed, as are processes for producing them.

Abstract: The present invention is to provide a pigment dispersion composition for a color filter having the excellent pigment dispersing property and dispersion stability, good developing property and reactivity, and an extremely small residue generation amount after development, a production method capable of stably producing such a pigment dispersion composition, and a color filter for a display having a high transmittance and a low light scattering property. A pigment dispersion composition for a color filter containing at least a pigment, a pigment dispersing agent, a binder resin, a reactive compound, and a solvent, wherein the binder resin is a compound having a pigment adsorbing block containing a pigment adsorbing group and not containing a reactive group, and a reactive block containing a reactive group and not containing a pigment adsorbing group, is provided.

Abstract: A method of making an ink jet ink that entails combining a water miscible organic solvent, water, and a pigment dispersion, and blending the water miscible organic solvent, the water, and the pigment dispersion together to form the ink jet ink, wherein the ink jet ink is capable of exhibiting no pigment precipitation, no pigment agglomeration, and no pigment flocculation after being stored in the absence of any agitation for a period of at least about 1 month.

Abstract: An ink composition comprised of (1) an ink vehicle of (a) alkyl alkyl ketones of the formula CH3(CH2)m CO (CH2)n CH3 where m and n represent the number of segments and wherein alkyl contains from about 1 to about 25 carbons, (b) alkyl aryl ketones where each alkyl contains from about 1 to about 20 carbons, and the aryl is anthracene, naphthalene or phenyl, (c) arylaryl ketones where each aryl is benzyl, phenyl or naphthyl, (2) an ink viscosity component, (3) a conductive compound, (4) an antioxidant compound, (5) a lightfastness component, and (6) a colorant.

Abstract: A multicolor ink jet printing process employs an ink jet ink composition comprising water, a colorant of pigment, dye, or mixtures thereof, and a low boiling point additive to produce high quality multicolor ink jet images with minimal intercolor bleed and lines with sharp edges as characterized by a relatively low mid frequency line edge noise (MFLEN) number. The additive is an alcohol or thiol having a boiling point less than or equal to about 115° C. The aforementioned ink jet ink composition can further include an optional additive of alcohol or thiol with a boiling point less than or equal to about 135° C. if necessary. The desired additive increases the ink's drying rate with fast evaporation and an accelerated penetration into a print substrate (e.g. paper) upon printing. As a result, little or minimum residual ink (e.g. carbon black ink) comprising the aforementioned additive is available on the surface of the print substrate to intermix with a previously or subsequently printed ink (e.g.

Abstract: An aqueous ink offering good waterfastness, rub resistance, and stability suitable for use in ink jet printers, as writing inks, and in other printing inks includes a colorless aromatic sulfonic acid compound, at least one pigment, and a water-soluble polyol or polyether, particularly polyethylene glycol. Pigments are easily dispersed in the ink compositions of the invention and the ink compositions have excellent dispersion stability and bleed resistance.

Abstract: Individual inks and an ink set for use in generating intermediate colors via the combination of separate inks applied by an ink jet printer to the glazed surface of an article, such as glazed ceramic architectural tile for example, that is to be heated to a temperature of greater than 300° C. The ink set according to the present invention includes at least three separate inks that upon heating decompose to form colored oxides or colored combinations with the materials of the glazed surface upon which they are applied. A first ink of the ink set includes a soluble cobalt complex for use in forming a cyan color. A second ink of the ink set includes a soluble gold complex for use in forming a magenta color. And, a third ink of the ink set includes a soluble transition metal complex for use in forming a yellow color. The third ink preferably includes a soluble praseodymium complex.

Abstract: An ink jet printing method having the steps of: A) providing an ink jet printer that is responsive to digital data signals; B) loading the printer with ink-receptive substrates; C) loading the printer with an ink jet ink composition having from about 30 to about 90% by weight of water, from about 0.5 to about 30% by weight of a pigment, from about 0.05 to about 2% by weight of an aromatic sulfonate or disulfonate which is sodium p-toluenesulfonate, disodium 2,5-dihydroxybenzene-disulfonate monohydrate, sodium p-hydroxybenzene-sulfonate or sodium p-aminobenzenedisulfonate, and from about 10 to about 50% by weight of a humectant of a polyhydric alcohol; and D) printing on an ink-receptive substrate using the ink jet ink in response to the digital data signals.

Abstract: Pigment preparation for the ink-jet process which comprises A) at least one finely divided, organic or inorganic pigment, B) a dispersant based on arylsulfonic acid/formaldehyde condensation products or an alkoxylated phenols, and C) water, as essential constituents. It provides for prints of high light fastness, wash fastness and rub fastness.

Abstract: An ink composition comprised of a colorant, potassium iodide, and a poly(quaternary amine), and which ink possesses a pH of from about 7.5 to about 12.

Abstract: An aqueous ink jet ink composition having a pigment wherein at least 50% of the pigment particles have an average diameter or size≦0.3 microns with the remaining particles in the ink composition having a diameter or size≦3.0 microns, water, a dispersant which is a reaction product of an aldehyde and a naphthalene sulfonate salt, and/or a sulfone solvent. The aqueous ink jet ink possesses a latency of at least 10 seconds at a relative humidity of 15% in either a high resolution (>360 spi) printhead or full-width array printhead having at least one nozzle opening of a diameter or size ranging from 10 to about 49 microns.

Abstract: A water-based pigment dispersion comprising 100 parts by weight of a pigment, 3 to 30 parts by weight of a sulfonic acid group-containing pigment derivative and water, wherein the sulfonic acid group-containing pigment derivative has only one sulfonic acid group in a molecule of a pigment of which the type is the same as the type of the pigment to be dispersed, the sulfonic acid group forms at least one salt selected from the group consisting of ammonia salt, an organic amine salt and a salt in which at least 15% of the sulfonic acid group is liberated and the rest is a salt with monovalent metal, the content of metal ion having a valence of at least 2 in a solid matter of the above water-based pigment dispersion is 500 ppm or less, and the above pigment is dispersed in water according to electrostatic repulsion due to the sulfonic acid group-containing pigment derivative adsorbed on the particle surface of the pigment, an inkjet recording liquid containing the same and process for the production thereof.

Abstract: The invention provides for pigment preparations containing, as main components, A) at least a finely divided organic or inorganic pigment, B) a dispersing agent composed of formaldehyde-arylsulfonic acid or oxalkylated phenols condensates, C) a radiation curable binder, D) optionally a photoinitiator, and E) water. The invention also provides for the use of said preparations as inks for said ink jet printing method.

Abstract: An ink jet ink composition comprising from about 30 to about 90% by weight of water, from about 0.5 to about 30% by weight of a pigment, from about 0.05 to about 2% by weight of an aromatic sulfonate or disulfonate comprising sodium p-toluenesulfonate, disodium 2,5-dihydroxybenzene-disulfonate monohydrate, sodium p-hydroxybenzenesulfonate or sodium p-aminobenzenedisulfonate, and from about 10 to about 50% by weight of a humectant comprising a polyhydric alcohol.

Abstract: An ink composition comprises red pigment and a carrier mixture. The carrier mixture comprises a bishydroxy terminated thioether and a lactam.