1219 results about "Pigment dispersion" patented technology

A resin including (i) a main chain portion containing a nitrogen atom, (ii) a group X that has a functional group having a pKa of 14 or less and is bonded to a nitrogen atom present in the main chain portion, and (iii) an oligomer chain or polymer chain Y having a number average molecular weight of from 500 to 1,000,000 in a side chain.

An inject recording method, including: spraying droplets of an ink composition that contains organic solvent, resin, and a pigment dispersion containing a metal pigment, wherein the metal pigment contains plate-like particles, and in the case where the longitudinal diameter on the planar surface of the plate-like particle is X, the lateral diameter is Y, and the thickness is Z, the 50% average particle diameter R50 of a corresponding circle determined from the surface area in the X-Y plane of the plate-like particle is between 0.5 and 3 μm, and the condition R50 / Z>5 is satisfied; and causing the droplets to adhere to a recording medium.

An aqueous ink, by which stable ink-jet recording can be conducted irrespective of printing environment, a substantially even image having abrasion resistance can be formed, no image soiling is caused even upon double-side printing, and a high-quality image improved in unclearness at a contour portion of the image and free from occurrence of color bleed can be provided, is provided. The aqueous ink is an aqueous ink used in a system that a reaction liquid containing at least a polyvalent metal and an aqueous ink containing at least a pigment dispersion, in which a pigment is dispersed with an anionic polymer dispersant, are used to form an image, wherein the aqueous ink satisfies specific condition.

Provided is an ink set including a plurality of inks each of which contains a water-insoluble coloring material and enabling ink-jet record images to be stably formed. The ink set includes first to nth aqueous inks for ink-jet recording, each of the aqueous inks containing a water-insoluble coloring material, an aqueous medium and a dispersant for dispersing the pigment in the aqueous medium, and a water-soluble organic compound, wherein the first to the nth aqueous inks are different from each other in pigment concentration based on the total weight of the each ink; and the first to the nth aqueous inks have the same or substantially the same viscosity at an actual usage temperature (T1).

Provided is a process for the preparation of a pigment dispersion which comprises a pigment surface treatment step of introducing at least one hydrophilic dispersibility-providing group onto the surface of a pigment directly and / or with the interposition of a polyvalent group, and a dispersion step of dispersing a surface-treated pigment obtained at the surface treatment step in an aqueous medium, characterized in that the dispersion step involves the dispersion of the surface-treated pigment in admixture with a wetting agent and water and a resin for providing dispersibility and / or fixability is added during and / or after the dispersion step.

An object of the present invention is to provide a green pigment for a color filter, capable of displaying the chromaticity coordinates not to be displayed by the conventional green pigments, having the excellent color strength as a green color which is not excessively strong in a blue tinge, and a high transmittance, and moreover, to provide a photosensitive color composition, a pigment dispersion, a color filter and a liquid crystal panel, using the above-mentioned green pigment. In order to achieve the above-mentioned object, the present invention provides a green pigment for a color filter comprised of a phthalocyanine green pigment and capable of expressing a region of xy-chromaticity coordinate enclosed by predetermined equations 1, 2 and 3 defined by the XYZ color system of the CIE when the green pigment is solely subjected to colorimetry. Moreover, using the above-mentioned green pigment, it provides a photosensitive color composition capable of forming a color filter having a wide color reproduction range and a high transmittance. Furthermore, it provides a color filter having a wide color reproduction range and a high transmittance with a green pixel formed using the above-mentioned photosensitive color composition, and a liquid crystal panel using the color filter.

There are provided a novel pigment dispersion that can be suitably used as a coloring material for inks, especially inks for ink-jet recording, comprising a colored pigment in primary particles dispersed stably in a liquid medium, and a process for producing the pigment dispersion. A pigment dispersion comprising a colored pigment that is substantially of a primary particle maintaining type and is dispersed in a liquid medium, a process for producing the pigment dispersion, and an ink and recorded image using the pigment dispersion.

A process for making an ink jet ink comprising: a) providing a dispersion containing a pigment, a hydrocarbon carrier, and a polyamine / fatty acid condensation polymer dispersant; b) mixing the pigment dispersion with rigid milling media less than 100 mu m; c) introducing the mixture of step (b) into a mill; d) milling the mixture from step (c) until the pigment particle size is below about 100 nanometers (nm); e) adding to the mixture during or after step d) or f) (below) a stabilizer selected from the group consisting of a polyether polyol; a modified polyester resin; an acrylic polymer; an alkylol ammonium salt of a block copolymer having acidic groups; ethoxylated triethanolamine; a high molecular weight block copolymer having an amine functionality; sorbitan sesquioleate; polyhydroxy stearic acid; butylated polyvinyl pyrrolidone; poly(vinylpyrrolidone / 1-hexadecene); and poly(p-tert-butylstyrene-co-styrene-co-2-sulfoethyl-lithium methacrylate); f) separating the milling media from the mixture milled in step (d); and g) diluting the mixture to obtain an ink jet ink having a pigment concentration suitable for ink jet printers.

The invention relates to a pigment dispersion for an ink jet ink composition, the pigment dispersion comprising pigment particles having a median particle size of 200 nm or less, and a polymeric dispersant comprising a random addition copolymer comprising at least one hydrophobic monomer type and at least one hydrophilic monomer type, wherein the polymeric dispersant comprises from 50 weight percent to 80 weight percent of hydrophobic monomers relative to the total weight of the polymeric dispersant, and wherein, when the polymer comprises more than one hydrophobic monomer type, at least 50 weight percent of the hydrophobic monomers relative to the total weight of the hydrophobic monomers is an acrylate comprising an aromatic group. The invention also provides an ink composition and ink jet printing method using the pigment dispersion.

The present invention provides a polymer compound represented by the following Formula (1) and a method for production thereof, a pigment dispersant, a pigment dispersion composition, and a photocurable composition respectively using the polymer compound, and a color filter and a method for production thereof [R1: an organic linking group having a valency of (m+n); R2: a single bond or a divalent organic linking group; A1: a monovalent organic group containing at least one moiety selected from an organic dye structure, a heterocyclic structure, an acidic group, a group having a basic nitrogen atom, a urea group, a urethane group, a group having a coordinating oxygen atom, a hydrocarbon group having 4 or more carbon atoms, an alkoxysilyl group, an epoxy group, an isocyanate group, and a hydroxyl group; m=1 to 8, n=2 to 9 (m+n=3 to 10); and P1: polymer skeleton].

A pigment dispersion is provided that includes a pigment, a pigment dispersant, a polymer dispersion stabilizer and water, wherein the polymer dispersion stabilizer is an alpha-olefin / maleic anhydride copolymer expressed by the formula (1) below. A recording ink is also provided that includes the pigment dispersion, a surfactant, a water-dispersible resin, a humectant and water.In the structural formula (1), R represents an alkyl group and n is an integer of 30 to 100.

The invention provides a pigment dispersion for an ink jet ink composition in which the pigment dispersion contains pigment particles having a median particle size of 200 nm or less, and a random graft copolymer dispersant containing a hydrophilic monomer type, a hydrophobic monomer type having a molecular weight of less than 200, and a macro-monomer type. The invention also provides an aqueous ink jet ink composition and printing method using the pigment dispersion.

An aqueous ink, by which stable ink-jet recording can be conducted irrespective of printing environment, a substantially even image having abrasion resistance can be formed, no image soiling is caused even upon double-side printing, and a high-quality image improved in unclearness at a contour portion of the image and free from occurrence of color bleed can be provided, is provided. The aqueous ink is an aqueous ink used in a system that a reaction liquid containing at least a polyvalent metal and an aqueous ink containing at least a pigment dispersion, in which a pigment is dispersed with an anionic polymer dispersant, are used to form an image, wherein the aqueous ink satisfies specific condition.

Provided is a method for coloring and, optionally, preserving wood and wood products. The method comprises application of pigment dispersions, and optionally biocide dispersions, to wood such that the wood is impregnated. A composition for coloring and, optionally, preserving wood is disclosed, comprising dispersions of micronized pigment and, optionally, micronized biocide.

An ink for inkjet recording, containing: dispersed particles A; dispersed particles B; a water-soluble solvent; a surfactant; and water, wherein the dispersed particles A are coloring particles obtained by dispersing an organic pigment in water with assistance of a surfactant, and the dispersed particles B are coloring particles obtained by dispersing a polymer-coated organic pigment in water.

An ink composition comprising: (a) water; (b) a pigment dispersion comprising a pigment and a polymeric dispersant wherein the polymeric dispersant is a copolymer comprising at least a hydrophobic methacrylate or acrylate monomer containing an aliphatic chain having greater than or equal to 12 carbons, and a hydrophilic methacrylic or acrylic acid monomer, wherein the copolymer comprises at least 10% by weight of the methacrylate or acrylate monomer and at least 5% by weight of the methacrylic or acrylic acid monomer, and wherein the copolymer comprises, in total, 20 to 95 weight % of hydrophobic monomer; and (c) at least one water-dispersible polyurethane.

An ink composition comprising dipropylene glycol monomethyl ether acetate (DPMA). For example, an ink composition for a color filter includes a binder material, a monomer material, a polymerization initiator, a pigment dispersion, and a solvent including dipropylene glycol monomethyl ether acetate (DPMA).

A colorless or only slightly colored pigment dispersing agent which is feasible as a pigment dispersing agent for pigments having various hues and has the general formula (1), wherein R1, R2, X1, Y1, Y2, k and h are as defined in claim 1.

Disclosed are an aqueous pigment dispersion containing at least a pigment, water, a high-molecular dispersant, and an alkali. The high-molecular dispersant is a diblock polymer having a formula (1) of A-B or a triblock polymer having a formula (2) of A-B-C. The diblock or triblock polymer is a diblock or triblock polymer obtained by polymerizing addition-polymerizable monomers with a radical generator while using an organic iodide as a polymerization initiating compound and an organic phosphorus compound, organic nitrogen compound or organic oxygen compound as a catalyst. Also disclosed are a production method and use of the aqueous pigment dispersion. With the high-molecular dispersant obtained by a simple living radical polymerization process free of the problems of conventional living radical polymerization and having a precisely-controlled molecular structure, the aqueous pigment dispersion can be obtained with the pigment dispersed in it.

There is provided an ink jet ink composition which comprises: (a) at least one pigment; (b) at least one water-miscible organic solvent; (c) at least one emulsion resin; (d) at least one solution resin; and (e) an aqueous carrier medium; wherein the water-miscible organic solvent is 1,3-propane diol. Preferably the ink jet ink also comprises a dispersant for the pigment and a surfactant. There is also provided an ink jet printing process using the ink of the invention in a piezo drop-on-demand ink jet printer to print on a poly vinyl chloride printable medium and drying the print using infra-red radiation.

A pigment dispersant is disclosed comprising a tri-block copolymer having a first block comprising a glycidyl(meth)acrylate reacted with a napthoic acid, a second block comprising (meth)acrylic acid alkyl esters, and a third block comprising (meth)acrylic acid alkyl esters, wherein said third block is different from said second block. The dispersant is suited for use in a nanoparticulate dispersion comprising pigment particles having an average primary particle size of less than 100 nm.

There is provided a colorant compound improved in the dispersibility of an azo pigment into a water-insoluble solvent. The colorant compound is represented by the following general formula (1). R1 denotes an alkyl group having 1 to 6 carbon atoms, or a phenyl group; R2 to R6 each denote a hydrogen atom, or a substituent represented by the following general formula (2); R7 to R11 each denote a hydrogen atom, a COOR12 group, or a CONR13R14 group; and R12 to R14 each denote a hydrogen atom, or an alkyl group having 1 to 3 carbon atoms; and P1 denotes a polymeric component; L1 denotes an alkylene group having 1 to 3 carbon atoms or an arylene group having 6 to 10 carbon atoms; and * denotes a binding site.

The present invention is directed to a water-based acrylic emulsion dispersant to be used as a grind resin to incorporate inorganic pigment into a pigment dispersion for a coating composition. The acrylic emulsion dispersant is the reaction product of butyl methacrylate, butyl acrylate, styrene, methyl ether polyethylene glycol methacrylate, polyethylene glycol methacrylate, and polyphosphoric acid. The present invention is also directed to a method of preparing the acrylic emulsion dispersant. In this method, the butyl methacrylate, butyl acrylate, and styrene are combined with water to establish a first reaction blend. Similarly, the methyl ether polyethylene glycol methacrylate and the polyethylene glycol methacrylate are combined with water to establish a second reaction blend. Next, the first and second reaction blends are polymerized to form an intermediate emulsion polymer containing a hydroxyl group from the functionality of the polyethylene glycol methacrylate. Finally, the hydroxyl group from the polyethylene glycol methacrylate is reacted with polyphosphoric acid to form the acrylic emulsion dispersant which is utilized for efficient wetting and grinding of the pigment.

The present invention provides: an aqueous primer coating composition of which the deterioration of the water resistance is prevented with the high adhesion maintained, and which is excellent in the gasohol resistance and the pigment dispersion stability; and a thing coated with this aqueous primer coating composition. The aqueous primer coating composition according to the present invention, comprises acid anhydride-modified poly(olefin chloride) emulsion resin (A), aqueous alkyd resin (B) and aqueous novolac-type epoxy resin (C), wherein the contents of the (A), (B), and (C) are (A) 20 to 60 weight %, (B) 10 to 60 weight %, and (C) 10 to 60 weight % in terms of solid content weight % to the total resin solid content in the composition. The coated thing, according to the present invention, is coated with the present invention aqueous primer coating composition.

A pigment dispersion comprising pigment, an aqueous carrier selected from water and a mixture of water and at least one organic solvent, and a pigment dispersant is described. The pigment dispersant is prepared by polymerizing (i) at least one prepolymer having a radically polymerizable group, and (ii) at least one second monomer. The prepolymer is prepared by controlled radical polymerization, e.g., atom transfer radical polymerization, of at least one radically polymerizable first monomer. The second monomer forms a polymeric backbone segment of the pigment dispersant, and the prepolymer forms polymeric segments that are pendent to the backbone. The backbone segment of the pigment dispersant is hydrophilic, while at least a portion of each pendent polymeric segment is hydrophobic.

Polyurethane and polyurea compositions for golf balls with improved stability of the curative blend, wherein the curative blend includes a pigment, a curing agent, and a compatible freezing point depressing agent so that the curative blend has a lower freezing point than the curing agent by itself and the blend does not lose pigment dispersion upon solidification and subsequent thawing.

Certain colorants which include both dye and pigment based inks are used which become insoluble under specific and well-defined conditions and additives. By reacting a quaternized or neutralized amine dispersant in a pigment-containing ink with an anion in a second ink that quantitatively combines with the dispersant, the pigment dispersion is destabilized, resulting in inhibition of the migration of pigment on the print medium, thereby helping to reduce bleed between black ink and color inks and between different color inks.

The invention belongs to the process technology field of coating liquid or other fluid on the surface, in particular to a ceramic non-stick coating with the bacteriostasis action. The coating is formed by mixing a component (A), a component (B) and a component (C) in a weight ratio of 2 to 0.5-2 to 0.1-2, wherein the component (A) is prepared by dispersing and grinding the following components in percentage by weight: 50-100 percent of silica sol, 0-50 percent of temperature-resisting pigment, 0-20 percent of inert pigment, 0-2 percent of dispersing aid and 0-2 percent of leveling aid for more than 2 h; the component (B) is prepared by mixing the following components in percentage by mass:0.2-1.5 percent of acetic acid and the balance of at least one silane; and the component (C) is prepared by dispersing and dissolving the following components in percent by mass of 1-10 percent of alcohol-soluble acrylic resin, 0-30 percent of non-stick agent and 1-50 percent of antibacterial material in 50-95 percent of isopropanol. Compared with a traditional non-stick coating, the non-stick coating without being added with substances, such as PTFE (Polytetrafluoroethylene), PFOA (Perfluorooctanoic Acid), and the like is environment-friendly and safe and has the bacteriostasis and sterilization functions.