Abstract: An ink composition is provided that includes (a) an onium salt, a counteranion thereof having a volume of 1,000 ?3 or greater and (b) a cationically polymerizable compound. There is also provided an inkjet recording method that includes (a?) a step of discharging the ink composition onto a recording medium and (b?) a step of curing the ink composition by irradiating the discharged ink composition with actinic radiation. There are also provided a printed material obtained by the inkjet recording method, a process for producing a lithographic printing plate employing the ink composition, and a lithographic printing plate obtained by the production process.

Abstract: A photopolymerization-curable inkjet-recording ink composition, including an ethylenic unsaturated monomer, a colorant, and a photopolymerization initiator containing an organic dye and an organic boron compound. The ethylenic unsaturated monomer is preferably a compound which polymerizes to form a polymer having an oxygen permeability coefficient at 25° C. of 2.6×10?13 [m3(STP)·m/(s·m2·kPa)] or lower.

Abstract: A UV curable, etch-resistant ink composition for ink jet printing of variable information on printed circuit boards and for printing the circuit boards themselves. The ink composition of the invention includes a novel thermal stabilizer for preventing the ink composition from hardening and gelling in the print head when heated.

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 for use in an inkjet printer and for printing on a polymeric substrate, comprises a swelling agent, selected and provided in sufficient amount to enable said colorant to enter the surface of the substrate, a colorant dispersed or dissolved in the swelling agent, and an inkjet-enabling additive. The swelling agent is selected and provided in sufficient amount to enable the colorant to enter the surface of the substrate.

Abstract: The invention is to provide an aqueous ink, a recorded image and a recording method capable of improving an image fastness and a color-developing property of a recorded image, and is featured in that components of the aqueous ink are so prepared as to realize, at least on a surface portion of a recording medium, a fixed state of an ink droplet in which a contour portion of a second coloring material is formed around a central portion in which a first coloring material is fixed.

Abstract: An inkjet ink for preparing a lithographic printing plate contains a contrast dye including A, D, and B groups wherein A represents a phosphorous containing group capable of reacting with the surface of a lithographic receiver; D represents a chromophore group absorbing light between 400 nm and 700 nm; and B represents an aliphatic group of at least 6 carbon atoms. A lithographic printing plate includes such an inkjet ink and methods for direct plate making include jetting on a printing plate precursor.

Abstract: The present invention pertains to a dye-based inkjet ink set with a lightfast cyan ink and, more particularly, to a dye-based inkjet ink set suitable for printing on fabrics, especially polyamide fabric. The present invention also pertains to a method for printing a polyamide fabric with the dye-based inkjet ink set, and a polyamide fabric so printed.

Abstract: The invention relates to an ink composition containing a multimetallic oligomeric or polymeric azo colorant wherein the colorant is derived from the polymerization reaction of a polyvalent metal cation with a dimeric tridentate ligand containing a coordinating azo group.

Abstract: An inkjet ink composition including about 100 parts by weight of a liquid vehicle (such as water), about 1 to about 35 parts by weight of a colorant including first and second dyes, and about 0.1 to about 130 parts by weight of an organic solvent, and a weight of the first dye soluble in 100 parts by weight of water under standard state conditions is more than 1.5 times an initial weight of the first dye contained in 100 parts by weight of the inkjet ink composition and a weight of the second dye soluble in 100 parts by weight of water under the standard state conditions is less than 1.5 times an initial weight of the second dye contained in 100 parts by weight of the inkjet ink composition; and a multi-color inkjet ink set including the inkjet ink composition.

Abstract: The present invention provides an ink-jet recording ink which includes colored fine particles including an oil-soluble dye and an oil-soluble polymer or a photopolymerizable monomer, and a compound represented by formula (I): wherein R represents a hydrophobic group or a group derived from a hydrophobic polymer; X represents a divalent linking group; Y represents a group including at least one represented by the structural units A, C and D, and 0 to 40% by mole of the structural unit B; and n is an integer of 10 to 3,500; wherein R1 represents H or alkyl; R2 represents H or alkyl; R3 represents H or methyl; R4 represents H, —CH3, —CH2COOH or —CN; Z1 represents H, —COOH or —CONH2; Z2 represents —COOH, —SO3H, —OSO3H, —CH2SO3H, —CONHC(CH3)2CH2SO3H or —CONHCH2CH2CH2N+(CH3)3Cl?.

Abstract: An ink composition for inkjet recording comprising water and a compound represented by the following Structure: wherein at least one of Z1, Z2, Z3, and Z4 are not hydrogen; each of R1, R2 and R3 are independently selected from the group consisting of hydrogen and methyl, R4 is —H, —CH3, —C2H5, or —C3H7, or —CH2O(CH2CHR5O)x4Z4, wherein each R5 is independently hydrogen or methyl; b is 0 or 1; x1, x2, x3, and x4 are each equal to at least 1, the sum of x1, x2, x3 is 3 to 45 when R4 is not —CH2O(CH2CHR5O)x4Z4, and the sum x1, x2, x3, and x4 is from 3 to 60 when R4 is —CH2O(CH2CHR5O)x4Z4. Such compounds have been found to provide improved curl control.

Abstract: A printing system including a boronic acid dye and a coated print medium. The boronic acid dye comprises a boric acid group or a boronic acid group attached to the dye. The boronic acid dye covalently binds to a polyhydroxylated material present in a coating layer of the print medium, fixing the boronic acid dye to the print medium. A method of reducing dye migration on a print medium is also disclosed.

Abstract: An image is formed by applying a recording composition having a colorant and a treating composition including a component that reacts with colorant droplets so that the compositions contact and mix with each other on a recording medium; and adjusting the pH of the mixture so that the treating composition and the recording composition react to form aggregates while any unreacted component forms aggregates as a simple substance, wherein the component that reacts with the colorant has an isoelectric point at which the zeta potential (?) is 0 when zeta potential (?) change of the component is plotted versus corresponding changes in the pH of the mixture, and wherein the recording composition and treating composition are respectively adjusted to satisfy a<? and a<c, wherein “c” is a pH value of the isoelectric point, “a” is a pH value of the mixture where the zeta potential (?) change according to pH is on the more acidic side than the pH (c) of the isoelectric point, and is about ?2.

Abstract: A water-based ink for ink jetting and ink jet recording method, in which stable jetting, clearness of the recorded matter, high density recording, water resistance, and friction resistance are well-balanced, and being useful for ink for various types of ink jet recording. After 5% of the water soluble colored resin comprising 5,5?-dimethylhydantoinformaldehyde resin and color index number basic red 1:1 and 10% of polyethyleneglycol (average molecular weight 200) and 6% of triethyleneglycolmonometylether and 79% of pure water are fully stirred to be mixed, the mixture is filtered with a membrane filter of 0.8 ?m thickness to become ink. Experimental evaluation using the recording head regarding jetting stability, jetting response, quality of the recorded images, friction resistance against various recording materials, and water resistance against various recording materials is made, and good results are obtained.

Abstract: A water-based ink set for ink-jet recording includes at least a yellow ink, a magenta ink and a cyan ink. At least one color ink of the yellow, magenta and cyan inks includes a first ink and a second ink which have different hue angles h having therebetween the color range of the normal color of the color ink. Preferably, the yellow ink includes a greenish yellow ink having a hue angle h of about 95° to about 110° and a reddish yellow ink having a hue angle h of about 70° to about 85°; the magenta ink includes a reddish magenta ink having a hue angle h of about 0° to about 10° and a violetish magenta ink having a hue angle h of about 340° to about 350°; and the cyan ink includes a bluish cyan ink having a hue angle h of about 250° to about 260° and a greenish cyan ink having a hue angle h of about 230° to about 240°.

Abstract: There is disclosed an ink jet recording apparatus comprising a color ink container having a capacity V1 accommodating therein a solvent polymerizable in the presence of an acid and a colorant, a reaction liquid container having a capacity V2 (V2<V1) accommodating therein a reaction liquid comprising a solvent, and a photo-acid generating agent capable of generating an acid when irradiated with light, an stirring container mixing the color ink and the reaction liquid at a mixing ratio of S1:S2 (the color ink:the reaction liquid) to prepare a recording ink, a color ink supply means feeding the color ink to the stirring container, a reaction liquid supply means feeding the reaction liquid to the stirring container, an ink jet recording head ejecting the recording ink to a recording medium, and a supply tube feeding the recording ink to the recording head.

Abstract: Radiation-curable compositions, and methods of making the same, for providing a wide variety of substrates with a durable, colored coating or colorant are disclosed. The color is at least in part provided by chromophore molecules that are covalently bonded to other components within the radiation-curable composition. A telecommunication element having a durable color identifying polymeric coating thereon is also disclosed. The telecommunication element comprises an elongated communication transmission medium, such as an optical fiber or an optical fiber ribbon, and a radiation-cured polymeric coating having an identifying color applied on at least a portion of the transmission medium.

Abstract: An ink set for ink-jet recording includes a pigment-based ink containing a negatively chargeable and self-dispersible pigment as a coloring agent and a dye-based ink containing an anionic dye as a coloring agent, and the ink set satisfies the following expression (1): Dci<1.1×Pci+0.0001??(1) wherein “Dci” represents an amount of counter ion (mol/g) of the anionic dye contained in the dye-based ink, and “Pci” represents an amount of counter ion (mol/g) of the self-dispersible pigment contained in the pigment-based ink. The pigment aggregation can be greatly suppressed, and the high quality printing can be stably performed when the ink set for ink-jet recording composed of the pigment-based ink and the dye-based ink is carried on an ink-jet printer provided with a conventional maintenance system that is simple and at low cost.

Abstract: The present invention pertains to an ink set comprising at least four different colored visible inks, for example BGMY, wherein none of the visible inks absorb significantly in the near infrared region (IR transparent).

Abstract: An ink set for inkjet recording is provided that includes at least a colored liquid composition comprising at least a radically polymerizable compound, a photopolymerization initiator, and a colorant, and an undercoat liquid composition comprising at least a radically polymerizable compound and a photopolymerization initiator, the colored liquid composition comprising as the photopolymerization initiator at least one type of ?-aminoacetophenone compound, and the undercoat liquid composition comprising as the photopolymerization initiator at least one type of compound selected from the group consisting of an acylphosphine oxide compound, an ?-hydroxyacetophenone compound, and an oxime ester compound.

Abstract: An ink stock solution contains at least a dye and a colorless planar compound having more than ten delocalization ? electrons in one molecule, and an ink composition is manufactured with the same ink stock solution.

Abstract: The present invention pertains to a dye-based inkjet ink set and, more particularly, to an ink set with at least six differently colored inks. The ink set includes at least a cyan, magenta, yellow, red, blue and green ink.

Abstract: The present invention aims to provide an ink which has a sufficiently large area factor even in a small ink droplet quantity and can obtain images having a high image density, and further has a superior storage stability. According to the present invention, a cyan ink is provided which is used in an ink set having four kinds of aqueous inks consisting of a cyan ink, a magenta ink, a yellow ink and a black ink in which each ink comprises at least water, a water-insoluble coloring material, and a plurality of water-soluble organic solvents having a good medium or good mediums for the water-insoluble coloring material and a poor medium or poor mediums for the water-insoluble coloring material, wherein, the ratio B1/A1 is from 0.5 or more to 3.

Abstract: A water-based ink for ink-jet printing, comprising colored particles containing: (a) a core particle having a colorant; and (b) a shell having a resin and encapsulating the core particle, wherein the resin comprises a monomer unit having a hydroxyl group in an amount of 0.1 to 50 weight % based on the total weight of the shell.

Abstract: The present invention relates to a security kit which comprises a security ink and a decoder substrate, the security ink comprising at least one colorant and at least one marker substance, colorant and marker substance having opposite solubilities, and the decoder substrate being able to take up the marker substance, and also to a security ink.

Abstract: In order to obtain an ink for oil-based ballpoint pens and an oil-based ballpoint pen which are excellent in handwriting sharpness, handwriting dryness, handwriting and feeling of writing, an ink composition includes an oil-soluble dye, water, an organic solvent whose vapor pressure at 20° C. is 0.5 mmHg or more and which dissolves the water, and an organic solvent whose vapor pressure at 20° C. is 0.1 mmHg or less and which dissolves the organic solvent whose vapor pressure at 20° C. is 0.5 mmHg or more. A total of these three components is 20 to 75% by mass based on an entire mass of the ink composition. A content of the water is 3.0 to 15.0% by mass based on the entire mass of the ink composition. An ink viscosity at 20° C. is 100 to 5,000 mPa·s. The water and the other components are formulated, mixed and stirred to produce the ink. A ballpoint pen refill with low vapor permeability is used.

Abstract: An ink set comprising a black ink and a color ink, wherein the black ink comprises an aqueous dispersion of water-insoluble vinyl polymer particles containing an oil-soluble black dye or carbon black, the vinyl polymer particles have an ionicity opposite to that of the color ink, and the vinyl polymer comprises a water-insoluble vinyl polymer prepared by copolymerizing (a) a salt forming group-containing monomer, (b) a monomer represented by the formula (I): CH2?C(R1)COO(R2O)pR3 ??(I) wherein R1 is hydrogen atom or a lower alkyl group, R2 is a divalent hydrocarbon group which may have a hetero-atom, R3 is a monovalent hydrocarbon group which may have a hetero-atom, and p is a number of 1 to 60, (c) a macromer, and (d) a monomer copolymerizable with these monomers. The ink set can be used as an ink set for inkjet recording, which is excellent in not only fixing abilities and water resistance, but also bleeding resistance and jettability, and can form very clear printouts.

Abstract: An ink composition for inkjet printer including a cerium salt compound, a colorant and water; an ink cartridge including the same; and an inkjet recording apparatus including the ink cartridge. In the ink composition, the cerium salt can suppress the occurrence of kogation and properly eject ink droplets over a long period of time by forming a film on the surface of an exothermal device in a thermal type inkjet recording head.

Abstract: A telecommunication element having a durable color identifying polymeric coating thereon is disclosed. The telecommunication element comprises an elongated communication transmission medium, such as an optical fiber or an optical fiber ribbon, and a radiation cured polymeric coating having an identifying color applied on at least a portion of the transmission medium. The identifying color in the polymeric coating is provided by chromophore molecules that are covalently bonded thereto. Coating compositions and a method are also disclosed.

Abstract: An ink-jet printing process containing the steps (a) and (b) in any order or simultaneously: (a) applying an ink by means of an ink printer to a localised region of substrate to form an image on the substrate; and (b) applying a fixing composition containing a liquid medium and a polymeric biguanide containing a repeat unit of Formula (1) or a salt thereof by means of an ink jet printer to localised region of the substrate: wherein: X and Y are the same or different and represent divalent organic linking groups; and characterised in that the localised regions referred to in steps (a) and (b) are substantially coextensive.

Abstract: An ink for inkjet including: a dye; and water and/or a water-miscible organic solvent, wherein the dye includes a dye compound having at least one heterocyclic structure, and the ink further includes, as an additive, at least one compound capable of chemically interacting with the dye compound.

Abstract: An ink cartridge for storing ink includes a thermal ink-jet head provided with a heating portion that generates thermal energy for discharging the ink. The heating portion has, on its surface in contact with the ink, a protective layer containing at least one of a silicon oxide, a silicon nitride, and a silicon carbide. The ink contains a substance that dissolves the protective layer and a compound represented by the following formula (1), and the content X (% by mass) of the compound of the formula (1) satisfies a relationship of 1?X?30: R1-A-R2 ??Formula (1) wherein A represents one selected from —S—, —S(?O)—, and —S(?O)2—, and R1 and R2 each independently represent a group selected from a hydrogen atom, a hydroxyl group, an alkyl group, a hydroxyalkyl group, an alkenyl group, an acyl group, a carbamoyl group, a carboxyl group, and a sulfonyl group.

Abstract: An inkjet recording ink including an aqueous medium having dissolved or dispersed therein a dye having a specific property or structure, and containing at least one antiseptic is provided, which can ensure excellent ejection stability and color hue even after long-term aging of the ink and exhibit excellent weather resistance.

Abstract: This invention pertains to an aqueous based magenta inkjet ink with good hue, chroma, optical density, fade resistance, and long latency, comprising a certain specified combination of soluble magenta colorants.

Abstract: A water-based ink set for ink-jet recording is provided. According to this ink set, graininess in a low density printed part can be reduced without reducing a color reproduction range in red and magenta directions in a high density printed part. In addition, the color reproduction range in the red direction can be extended to improve the vividness of red color. The water-based ink set for ink-jet recording includes a magenta ink and a red ink. The magenta ink is a light magenta ink having a lightness (L*) of about 50 or more in the L*a*b* colorimetric system. Preferably, the ink set further includes a light cyan ink having a lightness (L*) of about 60 or more and a blue ink and/or a green ink.

Abstract: The water-based ink set for ink-jet recording includes a cyan ink and a blue ink, or a cyan ink and a green ink. The cyan ink is a light cyan ink having a lightness (L*) of about 60 or more in the L*a*b* colorimetric system. A normal cyan ink having a lightness (L*) of about 60 or less in the L*a*b* calorimetric system is not included in the ink set.

Abstract: A water-based ink set for ink-jet recording is provided which is capable of: reducing graininess in a low-density printed part without reducing the color reproduction range in red and magenta directions in a high-density printed part; extending the color reproduction range in the red direction; improving the vividness of the red color; and improving the light fastness and gas resistance. The water-based ink set for ink-jet recording includes a magenta dye ink and a red pigment ink. The magenta dye ink is a light magenta dye ink having a lightness (L*) of about 50 or more in the L*a*b* calorimetric system.

Abstract: An inkjet ink composition having a binder including an aqueous dispersion of polymer particles, the polymer including, as polymerized units, (a) from 0 to 1 wt. % monoethylenically unsaturated acid monomer, based on polymer weight; and (b) monomer of the formula CH2?C(R1)—CON(R2)(R3) wherein R1?H, CH3 or C2H5 and R2 and R3 are independently selected from C1-C6 saturated alkyl and cycloalkyl groups; and wherein the total of (a) and (b) is at least 0.1 wt % monomer based on the polymer weight. The binder may be a copolymer of ethyl acrylate and acrylamide. An inkjet ink composition including the inkjet ink binder, a colorant, and a liquid medium is also provided.

Abstract: A water-based ink set for ink-jet recording is provided which is capable of: reducing graininess in a low-density printed part in a cyan direction without reducing the color reproduction range in the cyan direction in a high-density printed part; extending the color reproduction range in a blue direction and/or a green direction; and improving gas resistance and the vividness in the blue direction and/or the green direction. The water-based ink set for ink-jet recording includes a cyan dye ink employing dye as a coloring agent and a blue pigment ink employing pigment as a coloring agent and/or a green pigment ink employing pigment as a coloring agent. The cyan dye ink is a light cyan dye ink having a lightness (L*) of about 60 or more in the L*a*b* colorimetric system.

Abstract: A water-based ink set for ink-jet recording is provided which is capable of: reducing graininess in a low-density printed part without reducing the color reproduction range in red and magenta directions in a high-density printed part; extending the color reproduction range in the red direction; improving the vividness of the red color; and improving the light fastness and gas resistance. The water-based ink set for ink-jet recording includes a magenta pigment ink and a red dye ink. The magenta pigment ink is a light magenta pigment ink having a lightness (L*) of about 50 or more in the L*a*b* colorimetric system.

Abstract: Polymeric compounds suitable for ink and toner compositions, and image forming methods and apparatus using an ink or toner composition containing such a polymer compound, and particularly to a polymer compound having a repeating unit structure represented by the general formula wherein B is a linear or branched alkylene group having 1 to 15 carbon atoms and may be substituted, m is an integer of 1 to 30, q is an integer of 2 to 30, and R1 is hydrogen, an alkyl group which may be substituted, or an aromatic ring structure which may be substituted, with the proviso that when m is a plural number, the B groups may be different from each other, ink and toner compositions containing the polymer compound, a solvent or dispersion medium and a coloring material, and image forming methods and image forming apparatus using such a composition.

Abstract: The invention provides a method for preparing an ink having constituents of a water-soluble dye having a water-soluble solubilizing group of at least one of a sulfonic group and a carboxyl group, water, a water-soluble substance that is condensation-polymerized in the absence of the water, a water-soluble medium and an additive including at least one of an organic acid salt and an inorganic acid salt. This method includes a first mixing step of mixing at least the dye and the water-soluble substance out of the constituents of the ink excluding the additive; a second mixing step of mixing a mixture obtained in the first mixing step and the additive; and a pH adjusting step, performed before the second mixing step, of preparing a solution including the mixture or a solution including the additive while adjusting the solution to a given pH range by using a pH adjuster.

Abstract: The present invention relates to an inkjet printing ink which has good color developing property and fastness and a broad color gamut in printing various textile materials such as polyesters, cottons, silks, nylons, etc., knitted materials, particularly mixed fibers so that the product value of printed fiber products including garments can be increased, a process for preparation thereof, and a printing method using said ink. Moreover, the present invention provides an ink for inkjet printing suitable for polyester ultrafine microfibers and nylon/polyester ultrafine microfibers.

Abstract: A water-based ink set for ink-jet recording is provided which is capable of: reducing graininess in a low-density printed part in a cyan direction without reducing the color reproduction range in the cyan direction in a high-density printed part; extending the color reproduction range in a blue direction and/or a green direction; improving the vividness of the blue color and/or the green color; and improving gas resistance in a printed part in the cyan direction. The water-based ink set for ink-jet recording includes a cyan pigment ink employing pigment as a coloring agent and a blue dye ink employing dye as a coloring agent and/or a green dye ink employing dye as a coloring agent. The cyan pigment ink is a light cyan pigment ink having a lightness (L*) of about 60 or more in the L*a*b* colorimetric system.

Abstract: Ink jet recording method and apparatus is provided in which a color image is recorded by discharging, onto a recording medium, a black ink and at least one of a cyan ink, a magenta ink and a yellow ink from a black-ink recording head that ejects the black ink onto the recording medium, and a color-ink recording head that ejects the at least one of a cyan ink, a magenta ink and a yellow ink onto the recording medium, wherein the black ink contains carbon black, water, a water-soluble organic solvent, and a water-soluble polymer having an anionic functional group, and has a drying time of 5 seconds or more on the recording medium, and at least one type of the color ink contains a color material, water, a water-soluble organic solvent, and a coagulating agent, and has a drying time of 5 seconds or less on the recording medium.

Abstract: A water-based ink that comprises a water-soluble anionic colorant, an aluminum ion and an acid ion, wherein the content of the acid ion is more than that of the aluminum ion, and the content of the water-soluble anionic colorant is 20 to 1,000 times as much as that of the acid ion by molar ratio.

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: An inkjet recording ink includes at least one yellow-azo dye having specific properties or a specific structure dissolved and/or dispersed in an aqueous medium and containing a water-miscible organic solvent having a specific solubility with respect to dye.

Abstract: An ink-jet recording ink contains at least a colorant, a moisturizer, water and a water-soluble substance capable of undergoing polycondensation along with vaporization of the water, in which the colorant is a chelate azo dye.