Abstract: The ink composition for ink jet textile printing according to the invention is an ink composition which includes each dye satisfying the following conditions A, B, and C, two or more kinds of solvent having a boiling point of 190° C. or higher and lower than 260° C. under a pressure of 1 atm, and water, in which the solvent includes 5% by mass or greater of a nitrogen-containing heterocyclic compound with respect to the total mass of the ink composition and 5% by mass or greater of an alkyl polyol with respect to the total mass of the ink composition. A: Maximum absorption wavelength is in a range of 550 nm and 750 nm B: Maximum absorption wavelength is in a range of 450 nm or greater and less than 500 nm C: Maximum absorption wavelength is in a range of 400 nm or greater and less than 450 nm.

Abstract: The invention relates to azo dyes of desulfo-K-acid [CA: 35400-55-6], their salts, a method for the preparation of these dyes, or salts thereof, a liquid phase comprising at least one of these dyes, a method for applying the liquid phase on a substrate, a printed matter and the use of these dyes in water-based inks for inkjet printing, in writing utensil or dyeing solutions for manufacturing color filters for optical and opto-electronic applications.

Abstract: The present invention relates to dyes of the formula (I), in which R1 to R4, D1, f, and M are defined as indicated in claim 1, to processes for preparing them, and to their use for dyeing and printing hydroxyl- and/or carboxamido-containing materials.

Abstract: An inkjet ink set including at least a black ink, a cyan ink, a magenta ink, and a yellow ink. Each of the inks includes at least a water-soluble dye, water and a water-soluble solvent including a specific alkoxypropionamide compound. The cyan, magenta and yellow inks has a S/W ratio of not less than 1.5 and not greater than 3.5, wherein S represents the content of the water-soluble solvent in each ink, and W represents the content of water in each ink, and the black ink has a S/W ratio of not less than 1.0 and less than 1.5, wherein S represents the content of the water-soluble solvent in the black ink, and W represents the content of water in the black ink.

Abstract: The invention relates to an ink which comprises: a low-polarity solvent having a relative permittivity of 3 or less at a measuring frequency of 1 kHz; and a specific heterocyclic azo dye.

Abstract: The invention relates to an ink which comprises: a low-polarity solvent having a relative permittivity of 3 or less at a measuring frequency of 1 kHz; and a specific heterocyclic azo dye.

Abstract: The present invention is directed to magenta inks and ink sets for ink-jet printing. The inks and ink sets provide exceptional ozone fastness, particularly when printed on porous media or plain paper. The inks of the ink sets are formulated to be compatible with each other and are capable of producing high quality printed images.

Abstract: Compounds of the general formula (I) a process for their preparation and their use for dyeing and/or printing organic substrates.

Abstract: The present invention relates to magenta dye-based inkjet inks having improved permanence when jetted onto porous photo media. The inkjet ink includes a mixture of at least two magenta dyes, at least three co-solvents comprising about 18 to about 24% of the composition of the ink by weight, a penetrant, at least one wetting agent, and water.

Abstract: An inkjet ink set including at least a black ink, a cyan ink, a magenta ink, and a yellow ink. Each of the inks includes at least a water-soluble dye, water and a water-soluble solvent including a specific alkoxypropionamide compound. The cyan, magenta and yellow inks has a S/W ratio of not less than 1.5 and not greater than 3.5, wherein S represents the content of the water-soluble solvent in each ink, and W represents the content of water in each ink, and the black ink has a S/W ratio of not less than 1.0 and less than 1.5, wherein S represents the content of the water-soluble solvent in the black ink, and W represents the content of water in the black ink.

Abstract: The present invention relates to a disperse dye mixture containing (a) two or more disperse dyestuffs of the formula (I) or (b) one or more disperse dyestuffs of the formula (I) and one or more other disperse dyestuffs. The invention also relates to their process of preparation and their use.

Abstract: A thermal ink jet ink composition includes one or more volatile organic solvents, one or more solvent dyes, and one or more humectants. The one or more volatile organic solvents are selected from C1-C4 alcohols, C4-C8 ethers, C3-C6 ketones, C3-C6 esters, and mixtures thereof. The one or more solvent dyes are soluble in the organic solvent or solvents with a solubility of at least 0.1% by weight. The thermal ink jet ink composition is free or substantially free of tetrahydrofuran, binder resin, and water.

Abstract: A reversible thermochromic system comprising a) a compound of the formula (I) or a tautomer thereof (I) wherein R1 is C1-C18alkyl, C2-C18alkenyl, C3-C12cycloalkyl, C3-C12cycloalkyl substituted by 1, 2 or 3 C1-C4alkyl; or C7-C12phenylalkyl; R2 and R3 are hydrogen or R2 and R3 together form a group —CH?CH—CH?CH—; and R4 is hydrogen, —NO2, —SO2—R1 or (4-nitrophenyl)azo; and b) a compound containing a group of the formula (II).

Abstract: An azo dye represented by formula (1): wherein, R11 represents a monovalent substituent, R12 represents a hydrogen atom or a monovalent substituent, Ar1 represents a specific heterocyclic group such as a group such as a group shown below, and X represents atoms necessary to form a ring; wherein, in the heterocyclic group, R61 to R63 each independently represents a hydrogen atom or a substituent.

Abstract: The present invention relates to a novel ink composition and, more particularly, to an ink composition for digital textile printing, which is suitable for ink-jet printing on cellulose fiber materials. The novel ink composition of the present invention has stable pH value, fine storage stability, smoothness and ease in printing, and reduction in color deterioration.

Abstract: The present invention relates to magenta dye-based inkjet inks having improved permanence when jetted onto porous photo media. The inkjet ink includes a mixture of at least two magenta dyes, at least three co-solvents comprising about 18 to about 24% of the composition of the ink by weight, a penetrant, at least one wetting agent, and water.

Abstract: Ink-jet sets, printer systems, methods of printing, and printing materials are disclosed.

Abstract: Disclosed is a phase change ink composition comprising a phase change ink carrier and a compound of the formula and dimers thereof, wherein R, R2, X and Z are as described herein.

Abstract: A process for printing an image on a substrate comprising applying to the substrate an ink comprising a medium and a mono azo compound of Formula (1) or a salt thereof: wherein: A and X are independently optionally substituted aryl or heteroaryl; B is independently optionally substituted arylene or heteroarylene, in either case comprising a phenylene ring which is attached to the —N?N— and —NRa— groups in the compound of Formula (1) in the para positions; Ra and Rb are independently H, optionally substituted alkyl or optionally substituted aryl; ?the compound of Formula (1) or a salt thereof is a water-soluble dye; and the ink is applied to the substrate by means of an ink jet printer.

Abstract: A self-dispersible metal complex colorant is represented by formula 1, which has improved storage stability, may embody various colors and has improved fastness, such as light resistance, water resistance and the like: wherein each of A1 and A2 is independently a moiety which includes a substituted or unsubstituted C2-C30 alkenylene group having at least one double bond and is conjugated with an azo group; each of X1 and X2 is selected from the group consisting of a hydroxy group, a C1-C4 alkoxy group, a carboxyl group, and a substituted or unsubstituted amino group; M is a polyvalent transition metal; L is a neutral or anionic ligand; T is a mono- or poly-substituted hydrophilic functional group; n is an integer between 1 and 3; and J is a linker. The self-dispersible metal complex colorant may be used in various fields employing colors, such as fibers, foods, drugs, cosmetics, coatings, inks or ceramics.

Abstract: An ink composition including an azo-based colorant and an ink set using the same. More particularly, an ink composition which uses a lithium salt and a derivative including hydroxynaphthalene of a chromophore as colorants, and includes etriol and an acetylene glycol-based compound, and an ink set using the same.

Abstract: The present invention concerns a dye mixture comprising at least one dye of the general formula (I) and at least one further dye either of the general formula (II) or of the general formula (III) or of the general formula (IV) where the variables are each as defined in claim 1, processes for their preparation and their use.

Abstract: An inkjet ink includes an aqueous liquid vehicle, at least 1% by weight dye, and an ozone stability enhancing quantity of gluconate ions.

Abstract: An aqueous ink for ink jet recording, which comprises: at least one dye; and at least one of a compound having at least one phosphonic acid group and at least one carboxyl group and a compound having at least two phosphonic acid groups as a print density improver(s), a print density improver, and a method for enhancing print density involving the use of the aforementioned print density improver.

Abstract: An ink-jet printing process for printing textile fibre materials, wherein the fiber materials are printed with an aqueous ink comprising (I) at least one anionic acid dye, and (II) dipropylene glycol, said ink having a viscosity of from 5 to 20 mPa s at 25° C., and wherein the said ink is applied to the fiber material with an ink-jet print head comprising an ink supply layer (b) receiving ink from an external ink reservoir, said ink supply layer having a first side and a second side and comprising, a porous medium having a plurality of pores therein and a plurality of holes extending therethrough, so as to allow passage of the ink allows for high speed printing and yields prints with good fastness properties.

Abstract: Disclosed is a phase change ink composition comprising a phase change ink carrier and a compound of the formula and dimers thereof, wherein R, R2, X and Z are as described herein.

Abstract: An ink-jet printing process for printing textile fibre materials, wherein the fiber materials are printed with an aqueous ink that includes at least one disperse dye, and glycerol. The aqueous ink is applied to the fiber material with an ink-jet print head that includes an ink supply layer that receives ink from an external ink reservoir. The ink supply layer has a first side and a second side and includes a porous medium having a plurality of pores therein and a plurality of holes extending there through, so as to allow passage of the ink. The process allows for high speed printing and yields prints with good fastness properties.

Abstract: The present invention relates to a black dye composition, comprising: (a) a compound of the following formula (I), (b) a compound of the following formula (II), (c) a compound of the following formula (III), wherein R1, R2, R3, and R4 are defined the same as the specification. The present invention also relates to a black ink composition afforded from the aforementioned black dye composition. The black ink composition of the present invention is suitable for paper ink-jet printing, and exhibits the properties of good light-fastness, high color strength, solubility, and fine fluency of ink.

Abstract: A process for preparing an azo pigment dispersion, comprising the step of causing a solution containing a diazonium compound to react with a solution containing a coupling agent to prepare an azo pigment dispersion in which an azo pigment is dispersed, wherein the reaction is carried out in the presence of a dispersing agent for dispersing the azo pigment in a solvent and a pH buffering agent having a buffering action under alkaline conditions.

Abstract: A metal complex colorant represented by formula 1 may embody various colors and has improved fastness, such as light resistance, water resistance and the like: wherein each of A1 and A2 is independently a moiety which includes a substituted or unsubstituted C2-C30 alkenylene group having at least one double bond and is conjugated with an azo group; each of X1 and X2 is selected from the group consisting of a hydroxy group, a C1-C4 alkoxy group, a carboxyl group, and a substituted or unsubstituted amino group; M is a polyvalent transition metal; L is a neutral or anionic ligand; n is an integer from 1 to 3; and J is a linker. The metal complex colorant may be used in various fields employing colors, such as fibers, foods, drugs, cosmetics, coatings, inks or ceramics.

Abstract: An ink composition including an azo-based colorant and an ink set using the same. More particularly, an ink composition which uses a lithium salt and a derivative including hydroxynaphthalene of a chromophore as colorants, and includes etriol and an acetylene glycol-based compound, and an ink set using the same.

Abstract: Objects of the present invention are to provide a magenta ink composition having good light-fastness and gas resistance, and excellent moisture resistance and clogging resistance, and to provide a magenta ink composition having excellent colorability in addition to these characteristics. The present invention provides a magenta ink composition containing, as colorants, at least one selected from compounds represented by undermentioned formula (1) and salts thereof, and at least one selected from compounds represented by undermentioned formula (2) and salts thereof. Moreover, the present invention also provides a magenta ink composition containing, as colorants, the above and in addition at least one selected from compounds represented by undermentioned formula (3). (Definitions of the symbols in the formulae are as in the claims.

Abstract: A black ink composition includes a mixture of an azo metal complex dye having a good light fastness and water fastness and an adjective dye. The ink composition has a neutral black gradation, a high optical density and a good decap performance at a print head of an inkjet printer while printing. An inkjet cartridge for inkjet printing includes the black ink composition, and a recording apparatus for inkjet printing including the ink cartridge are also provided.

Abstract: The invention is directed to an electrophotographic toner or developer, powder coating, ink jet ink or an electronic media having an azo colorant prepared by conducting the diazotization of aromatic or hetaromatic amines or the azo coupling reaction or the diazotization and the azo coupling reaction in a microreactor.

Abstract: A document uses a chemically reactive security ink to facilitate security, making it more difficult to alter a genuine security document. The chemically reactive security ink masks a warning word or message on a security document. The hidden warning word or message is revealed when the document is subjected to chemical washing.

Abstract: The present invention relates to novel dyestuffs of formula (I) wherein the substituents have the meanings defined in the claims, the production of such dyestuffs, the use of these dyestuffs and material dyed or printed by such dyestuffs.

Abstract: A dye of the formula (2) and a process for preparing the same, wherein the radicals are as defined in the specification

Abstract: The present invention relates to a black dyes composition for ink-jet printing ink comprising (A) a compound of the following formula (I) wherein, R1 is —SO2CH2CH2OSO3H or —SO2CH?CH2 or —SO2CH2CH2OH; M is H, Na or Li; (B) a compound of the following formula (II) wherein, R1 is —SO2CH2CH2OSO3H or —SO2CH?CH2 or —SO2CH2CH2OH; M is H, Na or Li; and (C) a compound of the following formula (III) wherein, R1 is —SO2CH2CH2OSO3H or —SO2CH?CH2 or —SO2CH2CH2OH; M is H, Na or Li; these compositions are particularly suitable for using in paper inkjet printing ink, and inkjet printing inks with good light-fastness and solubility are obtained.

Abstract: A water-based ink containing a water-soluble dimer coloring material having a molecular structure having two chromophores and being symmetrical via a decomposable linking group, a water-soluble monomer coloring material having the same structure as the molecular structure obtained by the decomposition of the linking group in the water-soluble dimer coloring material, and a first water-soluble organic solvent which is a triol compound being liquid at normal temperature and having less than 5 carbon atoms, capable of restraining the water-soluble dimer coloring material from being decomposed. The water-soluble monomer coloring material is from 1% or more to 12% or less in weight with respect to the weight of the water-soluble dimer coloring material. Also disclosed are an ink tank holding therein this ink, and an ink-jet recording process carried out using this ink.

Abstract: An ink-jet ink containing a colorless, water-soluble, planar compound having more than ten delocalized pi-electrons per molecule.

Abstract: Ink set for ink jet printing comprised of at least one yellow ink, one magenta ink, one cyan ink and one black ink, wherein the yellow ink contains a mixture of at least one yellow dye with reddish hue of formula (I), wherein R, M, R17, R18, p4, n and m are as defined in the specification and at least one yellow dye with greenish hue of formula (II), wherein R, M, R6, R7, R8, n and m are as defined in the specification.

Abstract: Ink set for ink jet printing consisting of at least one yellow ink, one magenta ink, one cyan ink and one black ink, wherein the magenta ink contains, as first dye component, at least one dye of formula (I) wherein R2 and Aryl are as defined in the specification, or of formula (II) wherein M, R1 and Aryl are as defined in the specification and, as second dye component, at least one copper complex azo dye of formula (III) or of formula (IV) wherein M, R1, R2, R3, R4, R5, R6 and R7 are as defined in the specification.

Abstract: To provide a radiation-curable ink composition that can form a high-quality image on not only liquid absorbing materials to be recorded but also non-liquid absorbing materials to be recorded, is superior in curing properties in air, and is superior in storage stability, color tone, light fastness and water resistance of ink, and also to provide an image recording method. The radiation-curable ink composition comprises a monomer having a polymerizable group selected from the group consisting of an acryloyl group, a methacryloyl group, an allyl group, and a vinyl group, an oil-soluble dye, and from 0.005 to 1% by weight of a storage stabilizer, wherein the oil-soluble dye is dissolved in the ink.

Abstract: An inkjet recording ink set comprising at least two inks, wherein each of the inks contains at least one dye having an anionic group, and even when any two inks in the ink set are mixed, precipitation of the dye does not occur.

Abstract: The invention provides a water-soluble ink capable of forming an image having good color hue and high fastness in various use and environmental conditions, which comprises a coloring composition comprising a disazo dye represented by the following formula 1: A1-N?N-A2-N?N-A3 and at least one other dye having a specific structure; in formula 1, A1, A2 and A3 each independently represents an aromatic group which may be substituted or a heterocyclic group which may be substituted, and A1 and A3 each is a monovalent group and A2 is a divalent group.

Abstract: To provide an ink jet black ink which has a favorable tint for ink jet black ink, provides high ozone fastness, a high image density, and high sticking recovery property, and is capable of suppressing the decomposition of a compound represented by the following general formula (I) or a salt thereof at the time of storage for a long time period. The ink jet black ink is an ink jet black ink comprising at least a compound represented by the following general formula (I) or a salt thereof as a coloring material, and ethylene glycol or diethylene glycol, wherein the content of ethylene glycol or diethylene glycol is 15 mass % or more and 30 mass % or less with respect to the total mass of the ink jet black ink.

Abstract: A 2-methoxyphenol derivative may be used as an ultraviolet (UV) light absorbing dispersant and, an ink composition may include the 2-methoxyphenol derivative as a light-resistant dispersant. The 2-methoxyphenol derivative absorbs UV light and thus provides light resistance to outputs. The 2-methooxyphenol derivative also improves dispersibility. When the 2-methoxyphenol derivative is used to prepare an ink composition, the ink composition has improved dispersibility and light resistance, and there is no need to add a light-resistant additive.

Abstract: This invention relates to monoazo, disazo and trisazo colorants of the formula (I) where M represents two hydrogen atoms or one metal ion selected from the group consisting of Cu, Co, Ni, Mn, Zn and Al; A is the radical of a substituted naphthyl or pyrazolyl radical.

Abstract: It is an object of the present invention to provide a black ink for an ink jet which possesses preferable color as a black ink for an ink jet, can attain high ozone resistance, high image density and sticking recovery property, and can suppress the decomposition of the compound represented by the general formula (I) or salt thereof during long-term storage. According to the present invention, there is provided a black ink for an ink jet characterized by comprising at least a compound represented by the following general formula (I) or a salt thereof, characterized in that the black ink comprises at least one moisture-retaining nitrogen compound, and the pH of the ink and the pH of the ink after storing for 10 days in an environment at a temperature of 60° C. are 9.5 or less.

Abstract: A lightfast colorant and a lightfast ink composition including the lightfast colorant utilize a lightfast colorant that is derived by covalently binding a cinnamate derivative and a conventional colorant. The lightfast colorant improves storage stability as well as lightfastness when added to an ink composition.