Abstract: A water-based ink of the present invention comprises water, a plurality of different water-soluble organic solvents, and a water-insoluble coloring material, wherein the above water-soluble organic solvents consist of a good solvent to the above water-insoluble coloring material and a poor solvent to the above water-insoluble coloring material, and the total amount (% by mass) of the good solvents in the ink is represented by A and the total amount (% by mass) of the poor solvent in the ink is represented by B, the ratio of A to B ranges from 10:5 to 10:30 both inclusive, and when the respective Ka values of the above water-soluble organic solvents are determined by the Bristow method and compared with each other, a water-soluble organic solvent having the largest Ka value is the poor solvent. The pigment ink has a sufficiently large area factor even with a small amount of ink and provides an image of high OD.

Abstract: According to one embodiment, an aqueous inkjet ink includes a color material, water as a first liquid, propylene glycol as a second liquid, and a compound represented by the following general formula (PEG) or a compound represented by the following general formula (PGC) as a third liquid. The aqueous inkjet ink has a water activity of 0.85 or less. Ra—O—(CH2CH2O)n—H ??(PEG) In the formula, Ra represents H or CH3, and n represents 3 to 14. In the formula, Rb represents a group selected from CH2CH2O and CH2CHCH3O, and j, k, p, and q may be the same or different, and represent an integer of 1 or more, and satisfy the formula: 4?j+k+p+q?8.

Abstract: According to one embodiment, an aqueous inkjet ink includes a dispersion medium that contains water and a water-soluble polyhydric alcohol having a weight average molecular weight of 400 or more, and a pigment. The pigment accounts for less than 5 mass % of the total amount of the aqueous inkjet ink. The aqueous inkjet ink has viscosities (mPa·s) measured using a cone-plate type viscometer at 20 rpm and satisfying the following relationships: VA/VB?1.5 VA?10 mPa·s 3 mPa·s?VB?15 mPa·s, where VA is the viscosity at 30° C., and VB the viscosity at 45° C.

Abstract: A non-aqueous pigment ink comprising a pigment, a pigment dispersant and a non-aqueous solvent, wherein the pigment dispersant comprises a copolymer of vinylpyrrolidone and an alkene of 10 to 40 carbon atoms.

Abstract: The invention relates to aqueous pigment preparations containing (A) at least one organic and/or inorganic pigment, (B) a dispersant of formula (I) or (II), or mixtures of the dispersants of formula (I) and (II), (C) optionally wetting agents, (D) optionally other surfactants and/or dispersants, (E) optionally one or more organic solvents or one or more hydrotropic substances, (F) optionally other additives used conventionally for the production of aqueous pigment dispersions and (G) water.

Abstract: An oily inkjet ink comprises a pigment, a dispersant, and a water-insoluble organic solvent, wherein an ester solvent contained in the water-insoluble organic solvent is an ester solvent that is represented by the general formula: CnHx—COO—CmH2m+1, in which n represents an integral number falling within the range of 8 to 15, m represents an integral number falling within the range of 4 to 7, and x represents a number falling within the range of 2n?1 to 2n+1. The ester solvent is contained in a containing quantity falling within the range of 10% by mass to 30% by mass with respect to the total quantity of the ink.

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 ink composition, such as a nonpolar liquid or phase change (solid) ink composition, that includes a non-polar carrier, and a nanoscale pigment particle composition. The nanoscale pigment particle composition includes a benzimidazolone pigment and a sterically bulky stabilizer compound, which is an alkylated-benzimidazolone compound, associated non-covalently with the benzimidazolone pigment. The presence of the associated stabilizer limits an extent of particle growth and aggregation, to afford nanoscale pigment particles.

Abstract: An oily inkjet ink comprises a pigment, a dispersant, and an organic solvent. The organic solvent contains an ester solvent and/or an alcohol solvent. A containing quantity of a water-soluble ingredient in the pigment is equal to at most 0.15% by mass.

Abstract: An object of the present invention is to provide an ink composition with which images with high quality without white streaks or roughness can be provided even when the images are printed at a low resolution on coated printing paper such as art paper. The ink composition for ink jet recording at least includes a colorant, water, an alcohol solvent, and a surfactant, wherein the alcohol solvent contains a slightly water-soluble alkanediol, a water-soluble 1,2-alkanediol, and a dialkylene glycol.

Abstract: Modified colorants which can be pigments or dyes are described wherein the colorant has attached at least one aliphatic poly-acid group. Ink and inkjet ink compositions, formulations, and systems are further described, as well as methods of generating a printed image.

Abstract: A process for manufacturing an ink, or pigment formulation (e.g. a concentrate) for use in inks, comprising filtration of a composition comprising a particulate pigment and a liquid medium through an inorganic filter having pores of a uniform size below 10 microns. The process accurately removes oversized particles that could cause problems in inkjet printers without wasting non-problematic under-sized pigment. High flow rates are achieved even with low trans-filter pressure differences. In one embodiment, high flow rates are maintained by selection of pH and/or ionic strength. The filters are more robust than conventional polymeric filters and withstand cleaning with aggressive cleaning agents.

Abstract: The invention relates to a solvent composition comprising an ester of isoamyl alcohol with a C8-C14 fatty acid. The isoamyl alcohol is a component selected from the group of 3-methyl-1-butanol, 2-methyl-1-butanol, a fusel oil mixture containing 3-methyl-1-butanol, 2-methyl-1-butanol or a mixture of two or more of the afore mentioned components. The invention also relates to a creep oil, an ink composition, a coating composition or an anti-corrosion agent containing such a solvent composition.

Abstract: An ink set including at least three colors of inks of yellow ink with a hue angle ?H°, as defined in CIELAB color space on a recording medium, in the range of about 80° to about 110°, magenta ink with a hue angle ?H° in the range of about 330° to about 360°, and cyan ink with a hue angle ?H° in the range of about 230° to about 260°, and the following ink (A) and ink (B): ink (A): ink with a hue angle ?H° in the range of about 0° to about 80°; and ink (B): ink with a hue angle ?H° in the range of about 0° to about 80° (where the ink (A) has higher saturation and lower brightness than the magenta ink, and the ink (B) has higher saturation and higher brightness than the magenta ink and higher saturation and lower brightness than the yellow ink, and the hue angle (?H°) is determined as hue angle ?H°=tan?1(b*/a*)+180 (when a*<0) or ?H°=tan?1(b*/a*)+360 (when a*>0), a* and b* representing the perceived chromaticity index as defined in CIELAB color space).

Abstract: This invention provides a magenta ink composition that, when recorded, is excellent in color development, graininess, and gloss, is less likely to cause clogging in an ink jet recording head, and is excellent in color reproduction in a high-chroma and high-lightness red region. The magenta ink composition has an L* value of not less than 60 and a b* value of not more than ?17 when the a* value in CIE standard calculated from a visible absorption spectrum in a not more than 10000-fold diluted aqueous solution is 80.

Abstract: A pigment dispersed liquid prepared by heat-treating an aqueous pigment dispersion containing a self-dispersing pigment, but not a dispersing resin.

Abstract: A non-water-based inkjet ink containing a colorant, is characterized in that a mixed solvent having a solubility parameter value of from about 8 to about 10 is used as a solvent. The ink is an inkjet ink of which solvent hardly erodes a head member so as to allow long term stable printing and also hardly penetrates the material of media so as to improve the printing quality.

Abstract: An ink jet recording method includes ejecting droplets of an aqueous ink composition from an ink jet recording apparatus onto a non-ink-absorbing or low-ink-absorbing recording medium, and heating the recording medium to 40° C. or more to dry the aqueous ink composition deposited on the recording medium, wherein the first solvent content (W1) is 3% by mass or more and 6% by mass or less of the mass of the aqueous ink composition, the ratio (W2/W1) of the second solvent content (W2) to the first solvent content (W1) is one or more, and the ratio [(W2+W3)/(W1)] of the total (W2+W3) of the second solvent content (W2) and the third solvent content (W3) to the first solvent content (W1) is three or more.

Abstract: An ink jet recording method includes ejecting droplets of an aqueous ink composition on an ink-non-absorbent or ink-low-absorbent recording medium from an ink jet recording apparatus, and drying the aqueous ink composition on the recording medium by heating the recording medium to 40° C. or more. The aqueous ink composition used in the method contains a pigment, a first solvent and a second solvent, but does not contain glycerol. The first solvent content W1 is in the range of 3% to 6% by mass, and the ratio W2/W1 of the second solvent content W2 to the first solvent content W1 is 2 or more.

Abstract: A process for preparing an aqueous pigment dispersion suitable for use in an ink jet printing ink comprising the following steps in the order I) followed by II): I) providing a dispersion having a sodium chloride critical coagulation concentration of no more than 2.0M, said dispersion comprising a pigment, an aqueous liquid medium and a dispersant having one or more ionic group(s); and II) reducing the hydrophilicity of the dispersant by reacting at least some, but not all of the ionic group(s) in the dispersant with the one or more hydrophobic compound(s).

Abstract: The disclosure is generally related to writing instruments capable of making markings containing large diameter glitter pigment particles, and glitter ink compositions for the same. In one embodiment, the disclosure provides a capillary-action marker comprising a glitter ink composition, a low density ink reservoir for storing the glitter ink composition, and a porous nib in fluid communication with the low density ink reservoir, wherein the glitter ink composition comprises glitter pigment particles having a particle size greater than about 12.1 microns in at least one dimension.

Abstract: A water-based ink for inkjet recording exhibits a blue color defined as L*<45, 25<C*<28, 255<h<278, and comprises a mixture of dyes and pigments, specifically including C.I. Pigment Blue 60 and C.I. Acid Blue 90, with water and a water-soluble organic solvent. The blue ink provide an image which has good water resistance and high optical density.

Abstract: According to one embodiment, an inkjet emulsion ink includes a pigment, an aqueous liquid, an oil liquid, and a polyoxyethylene hydrogenated castor oil. The polyoxyethylene hydrogenated castor oil emulsifies the aqueous liquid and the oil liquid. The oil liquid is at least partly an aliphatic monoalcohol having 6 to 9 carbon atoms.

Abstract: It is an object of the present invention to provide an ink set which makes it possible to obtain recorded images that have a broad color reproduction range and a high saturation, as well as glossiness without conspicuous graininess caused by dot expression, and which in particular makes it possible to achieve an extreme suppression of graininess caused by dot expression in cases where the ink set is used on media that have a coating layer, and to obtain recorded images with extremely superior coloring characteristics in cases where the ink set is used on ordinary paper. The present invention provides an ink set comprising at least a yellow ink (Y), magenta ink (M), cyan ink (C) and red ink (R), wherein the L* values in the CIE-stipulated Lab display system of aqueous solutions of the respective inks diluted 1000 times by weight are in the following ranges: (Y): at least 89 but no more than 94, (M): at least 76 but no more than 93, (C): at least 74 and no more than 87, (R): at least 55 and no more than 74.

Abstract: An inkjet aqueous ink that prevents paper deformation and exhibits superior print quality and latency. The inkjet aqueous ink contains not less than 15% by mass and not more than 40% by mass of a polyglycerol having an average polymerization degree of 4 or greater, not less than 5% by mass and not more than 20% by mass of at least one of 1,3-propanediol and diethylene glycol monoethyl ether, and not less than 40% by mass and not more than 60% by mass of water.

Abstract: An ink composition that can form high-quality images free of white streaks and harshness on actual printing paper, such as art paper, even at low resolution and that can reduce the occurrence of curling even with thin actual printing paper having a low grammage is provided. An ink jet printing ink composition includes at least a colorant, water, an alcohol solvent, and a surfactant, wherein the alcohol solvent contains a poorly water-soluble alkane diol, a water-soluble 1,2-alkane diol, and a water-soluble symmetrical alkane diol having a hydroxy group at both ends.

Abstract: Disclosed is an ink jet ink composition having reduced ink buildup on the printer nozzle plate. The ink jet ink composition comprises a non-conductive solvent, one or more binder resins that are soluble in the non-conductive solvent, and a colorant soluble in the non-conductive solvent. Also disclosed is a method of printing on statically charged substrates. The ink jet ink composition provides one or more advantages: reduced ink buildup on the printer nozzle, reduced down time or cleaning time, and improved print quality.

Abstract: The invention relates to an aqueous pigment preparation comprising (A) at least one organic and/or inorganic pigment, (B) dispersants and/or surfactants, (C) a trihydric or higher polyhydric alkoxylated alcohol, (D) a polyglycol alkyl ether, (E) if desired, hydrotropic oligomers and/or polymers, (F) if desired, fats, oils or fatty acids, (G) if desired, further additives typical in the preparation of aqueous pigment dispersions, and (H) water.

Abstract: A yellow ink composition includes C.I. Pigment Yellow and C.I. Pigment Yellow 74 as coloring agents. The ratio of a C.I. Pigment Yellow 185 content (percent by weight) to a C.I. Pigment Yellow 74 content (percent by weight) is in the range of 0.5 to 15. The yellow ink composition has a C.I. Pigment Yellow 185 content of 10% to 20% by weight and a C.I. Pigment Yellow 74 content of 10% to 20% by weight.

Abstract: An inkjet recording liquid includes: water; a colorant; a first water-soluble organic solvent having a structure represented by the following Formula (1), an SP value of 27.5 or less, and a molecular weight of 100 to 210; and a second water-soluble organic solvent having a structure represented by the following Formula (2), an SP value of 27.5 or less, and a molecular weight of 240 to 2000, wherein the mass ratio of the content of the first water-soluble organic solvent to the content of the second water-soluble organic solvent is from 1:3 to 3:1: R1-(A1)n-OH??Formula (1) R2-(A2)m-OH??Formula (2) In Formulae (1) and (2), R1 represents a hydrogen atom or an alkyl group, R2 represents a hydrogen atom, an alkyl group, or a group derived from a sugar alcohol, each A1 independently represents an ethyleneoxy group or a propyleneoxy group, each A2 independently represents an ethyleneoxy group or a propyleneoxy group, n represents an integer from 1 to 3 and m represents an integer from 3 to 40.

Abstract: A solvent-based ink composition for a thermal inkjet printhead. The ink composition comprises: (a) 20-80 wt. % of a compound of formula (B); wherein: R5 is a C1-6 alkyl group and R6 is a C1-6 alkyl group; or R5 and R6 are together joined to form a C3-12 cycloalkylene group; (b) 10-70 wt. % of a C1-6 alcohol; and (c) 0.01-25 wt. % of a colorant.

Abstract: A solvent-based ink composition for a thermal inkjet printhead. The ink composition comprises: (a) 20-80 wt. % of a compound of formula (C); wherein: R7 is a C2-12 alkyl group interrupted with 0, 1, 2 or 3 oxygen atoms; (b) 10-70 wt. % of a C1-6 alcohol; and (c) 0.01-25 wt. % of a colorant.

Abstract: The present invention relates to novel 1:2 chromium complex dyes, processes for their preparation and their use for dyeing or printing fibre materials containing hydroxyl groups or containing nitrogen. The present invention relates to a 1:2 chromium complex dye of formula (I) wherein all substituents are as defined in the claims, a process for their preparation and their use for dyeing or printing fiber materials containing hydroxyl groups or containing nitrogen.

Abstract: An ink composition at least comprising water and a colorant, and further comprising 0.01% by weight or more of lithium ions based on the total weight of the ink composition, wherein at least one type of glycol ether represented by the following formula 1 is contained: R1O—[—CH2—CH2—O]n—R2??Formula 1 (wherein, n represents a positive number of 4 to 8, R1 represents H or an alkyl group having 1 to 3 carbon atoms, and R2 represents an alkyl group having 6 to 8 carbon atoms).

Abstract: An inkjet ink containing a colorant, where an amine compound is added as a pH adjuster. The ink is capable of preventing the pH of the ink from being shifted to the acidity side due to corrosive substances (e.g., acid substances) generated by deterioration of ink, adverse effects due to water absorption and moisture absorption, or degradation of resin (e.g., degradation of vinyl chloride-vinyl acetate copolymer resin), thus preventing erosion of a head nozzle member.

Abstract: According to one embodiment, an inkjet ink includes a pigment, an aqueous liquid, an oil liquid, and a dihydric alcohol soluble in the aqueous liquid and the oil liquid. The aqueous liquid accounts for 10 to 70% by weight of the inkjet ink, and the oil liquid accounts for 70 to 10% by weight of the inkjet ink. At least a part of the oil liquid is an aromatic alcohol represented by general formula AA, where Ra represents an aliphatic hydrocarbon group having 1 to 5 carbon atoms, Rb represents —O— or —CH2O—, and k represents 0 or 1. The dihydric alcohol is selected from compounds represented by general formulae DA, BO, and PO below, Rc—(OH)2 ??DA OH—(CH2CH2O)n—H ??EO OH—(CH(CH3)CH2O)m—H ??PO where Rc represents an alkylene group having 3 to 6 carbon atoms, n represents 1 to 10, and m represents 2 to 5.

Abstract: According to one embodiment, an inkjet ink includes a pigment, an aqueous liquid, an oil liquid, and a monohydric aliphatic alcohol that has 3 or fewer carbon atoms, and is soluble in the aqueous liquid and the oil liquid. The aqueous liquid accounts for 10 to 70% by weight of the inkjet ink, and the oil liquid accounts for 70 to 10% by weight of the inkjet ink. At least a part of the oil liquid is an aromatic alcohol represented by general formula AA, where Ra represents an aliphatic hydrocarbon group having 1 to 5 carbon atoms, Rb represents —O— or —CH2O—, and k represents 0 or 1.

Abstract: According to one embodiment, an inkjet aqueous ink includes water, a pigment, a water-soluble organic solvent, a poorly water-soluble compound, a solubilizer that solubilizes the poorly water-soluble compound in water, and an acetylene glycol-based surfactant. The poorly water-soluble compound is 2,5,8,11-tetramethyl-6-dodecene-5,8-diol. The solubilizer is selected from polyoxyethylene anionic surfactants and non-ionic surfactants.

Abstract: Present invention relates to an inkjet ink used for a polyvinyl chloride resin sheet, wherein the inkjet ink comprises an organic solvent, a pigment and a vinyl chloride-vinyl acetate resin, the organic solvent is a mixed solvent comprising at least one compound selected from the group consisting of compounds represented by a formula (1) and compounds represented by a formula (2), together with a lactone compound, and the quantity of the lactone compound is within a range from 1 to 40% by weight relative to the total weight of the ink. [Formula 1] CH3CO(OR1)mOR2??(1) (wherein, R1 represents an ethylene group or propylene group, R2 represents an alkyl group of 1 to 4 carbon atoms, and m represents an integer from 1 to 3) [Formula 2] CH3CH(OH)COOR3??(2) (wherein, R3 represents an alkyl group of 1 to 8 carbon atoms).

Abstract: An ink-jet recording ink including water, a water-soluble organic solvent, a pigment (P1) as a colorant (B), and at least one fluorochemical surfactant selected from compounds represented by Structural Formula (1) below, where R1 denotes any one of a hydrogen atom, an alkyl group and a fluorine-containing group, Rf denotes a fluorine-containing group, and each of x, y and z denotes an integer of 1 or greater.

Abstract: An ink set, comprising: an oil based ink composition containing a metallic pigment; and at least one or more oil based ink compositions selected from a group consisting of a chromatic color ink composition containing chromatic color pigment, a black ink composition containing black pigment, and a white ink composition containing white pigment.

Abstract: There is provided an ink composition that, even on various recording media, especially gloss paper of a printing paper base, can yield an image having excellent gloss, can realize good recovery from clogging and handleability of recorded matter, and, at the same time, can realize excellent ejection stability and color reproduction. The ink composition for ink jet recording comprises at least a colorant, water, an alkanediol, and a surfactant, wherein the alkanediol comprises a water soluble 1,2-alkanediol and a water soluble alkanediol having a hydroxyl group at both ends of its main chain, and the surfactant is a polyorganosiloxane.

Abstract: An inkjet ink composition includes water and effective amounts of one or more of: derivatized 2-pyrrolidinones; glycerol polyoxyethyl ethers; diols; or combinations thereof. The inkjet ink composition also includes an effective amount of functionalized nanocrystals.

Abstract: An ink composition, such as a nonpolar liquid or phase change (solid) ink composition, that includes a non-polar carrier, and a nanoscale pigment particle composition. The nanoscale pigment particle composition includes a benzimidazolone pigment and a sterically bulky stabilizer compound, which is a substituted pyridine derivative, associated non-covalently with the benzimidazolone pigment. The presence of the associated stabilizer limits an extent of particle growth and aggregation, to afford nanoscale pigment particles.

Abstract: A non-aqueous inkjet ink includes a diketopyrrolo-pyrrole pigment and at least one polyalkyleneglycol dialkylether having a molecular weight of at least 250. Also, a method for manufacturing decorative laminates using the non-aqueous inkjet ink is provided.

Abstract: An ink set includes an oil-based ink composition containing a metallic pigment; and at least one oil-based ink composition selected from the group consisting of a chromatic color ink composition containing a chromatic color oil dye, a black ink composition containing a black oil dye, and a colorless and transparent ink composition that does not contain a colorant.

Abstract: An ink set, comprising: an oil based ink composition containing a metallic pigment; and at least one or more oil based ink compositions selected from a group consisting of a chromatic color ink composition containing chromatic color pigment, a black ink composition containing black pigment, and a white ink composition containing white pigment.

Abstract: The invention is ink formulations that show improved rheological and antimisting properties. The invention is particularly useful in lithographic inks including heatset, sheetfed and UV curable lithographic inks. The invention also includes novel additive that enable the preparation of inks with required viscosities that are needed to perform on high-speed printing presses with improved performance. The additive is based on reaction products of polyamines and carboxylic acids with two or more carboxylic moieties mixed or combined with tridecyl alcohol. In addition, the inventive additive is in the form of liquid and it is pourable and pumpable for ink manufacturing processes.

Abstract: A pigmented phase change ink composition comprising an ink vehicle, a dispersant, and pigment particles wherein the dispersant is a chemical compound of formula: wherein R1 is an alkyl group, aryl group, alkylaryl group or arylalkyl group with at least 23 carbon atoms, R2 is an alkylene group, arylene group, alkylarylene group or arylalkylene group with at least 2 carbons and X is a quaternary ammonium salt. The ink can be resistant to substantial aggregation and settling of the pigment particles in the melt and even when exposed to freeze thaw cycles.

Abstract: Ink composition for continuous deviated jet printing, which is liquid at ambient temperature, comprising: a)—a solvent, representing at least 10% of the total weight of the ink composition; b)—at least one compound that can be dissociated into at least one anion and at least one cation, said compound representing at least 0.1%, preferably from 0.1% to 20%, more preferably from 0.1% to 10%, better still from 0.1% to 5% by weight of the total weight of the ink composition; c)—at least one compound that complexes said cation or said anion, representing at least 0.1% by weight of the total weight of the ink composition. Process for marking objects using this ink and substrate provided with marking obtained by drying the ink composition.