44results about How to "High printing density" patented technology

An azo compound represented by the following Formula (1) or a salt thereof, and an ink composition comprising the same(wherein, each of R1, R2, R5, R6 and R7 independently represents a hydrogen atom, a carboxyl group, a sulfo group and the like, each of R3 and R4 independently represents a hydrogen atom, a sulfo group, a nitro group, a (C1 to C4) alkyl group (which may be substituted by a hydroxyl group or a (C1 to C4) alkoxy group), a (C1 to C4) alkoxy group (which may be substituted by a hydroxyl group, a (C1 to C4) alkoxy group, a sulfo group or a carboxyl group) and the like, and n represents 0 or 1, respectively).

Disclosed is a thermal transfer image receiving sheet comprising a substrate sheet and an image-receiving layer formed on at least one side of the substrate sheet and mainly containing a dyeable resin. The image-receiving layer contains a cellulose acetate butyrate and a polyester resin having a number-average molecular weight of not more than 10,000.

[PROBLEMS] To provide: a black compound which is for use in ink-jet recording or writing utensils, is excellent in ozone resistance, light resistance, moisture resistance, and color rendering, and gives a recording fluid having satisfactory storage stability; and an ink composition containing the compound. [MEANS FOR SOLVING PROBLEMS] The black compound is a trisazo compound represented by the following formula (1) or a salt thereof. (1) [In the formula (1), R1 and R2 each independently represents hydrogen, carboxy, sulfo, hydroxy, a C1-4 alkyl, C1-4 alkoxy, or sulfo group optionally substituted by C1-4 alkoxy, an optionally carboxylated C1-4 alkoxy group, etc.; and A represents phenyl or naphthyl (provided that the phenyl and naphthyl groups may be substituted by halogeno, carboxy, sulfo, sulfamonyl optionally substituted by alkyl or phenyl, nitro, etc.).]

Disclosed is an ink jet recording medium that has an excellent glossy impression, has a high print density in ink jet recording using a dye ink, and has excellent ink absorption and waterfastness. The ink jet recording medium is produced by forming a coating layer containing a pigment and a binder on at least one side of an air permeable support and then coating a coagulating agent, which coagulates the binder, onto the surface of the coating layer to provide an ink receptive layer by a coagulation cast coating method. A boron compound, a cationic resin, and a cationic colloidal silica contained in the coagulating agent are present on the surface of the ink receptive layer.

The present invention provides microencapsulation for an ink composition that is excellent in dispersion stability, ejection stability, and color rendering, has excellent image fastness and scratch resistance, is less prone to image penetration, and can obtain a recorded matter with high printing density Color material, ink composition using the color material, its production method, inkjet recording method, recorded matter, and microencapsulated product. On the surface of the core substance represented by the color material particles such as pigments, the wall material mainly composed of the following substances is covered to perform microencapsulation. The substances in it are: 1) have ionic groups and hydrophobic groups and 2) a polymer (B) having at least: a first polymerization from an ionic group having a charge opposite to that carried by the polymer, a hydrophobic group, and a polymerizable group A repeating structural unit derived from a surfactant, and from a second polymerizable surfactant having the same or opposite charge to that of the first polymerizable surfactant and / or having a charge similar to that of the polymer Repeating structural units derived from hydrophilic monomers and / or hydrophobic monomers with the same or opposite charges. The aqueous medium contains a color material such as a pigment as a core material and microencapsulates it. As an ink composition, the ink composition is ejected from a nozzle on a recording medium by an inkjet recording method. object, get the record object. By constituting the core material with chemicals, metal powder, ceramics, etc., it becomes possible to perform surface modification of the core material.

An inkjet recording apparatus including an ink; and an ink discharging head configured to discharge the ink, wherein the ink discharging head is provided with a nozzle having a silicone-containing water-repellent film on a surface thereof on which the ink contacts, wherein the ink contains a colorant; water; and a water soluble organic solvent, wherein the colorant contains a carbon black partially coated with a resin, and wherein the ink meets the following expressions (1) and (2):1.0×104<N×R / 100<1.0×106  (1)20.0<R≦100.0  (2)where R (% by mass) denotes a rate of the mass of the carbon black partially coated with a resin relative to the mass of the colorant, and N denotes the number of coarse particles having a particle diameter of 0.5 μm or more per 5 μL of the ink where the number thereof is determined with a number counting method.

An inkjet recording material, in which at least one ink receiving layer is provided on one side of a light-transmitting support, and at least one bottom coating layer is provided on the opposite side, wherein the bottom coating contains primary particles with an average particle diameter of 5 to For 50nm inorganic particles and binders, the porosity is 70% by volume or less. Provided is an inkjet recording material which has high ink absorbency, high printing density, no problem of printer conveyance and back bleeding, and excellent visibility by means of backlighting.

An azo compound represented by the following formula (1): (wherein R<1> and R<2> each independently represents hydrogen, halogeno, cyano, carboxy, sulfo, sulfamoyl, N-alkylaminosulfonyl, N-phenylaminosulfonyl, etc.; R<3>, R<4>, R<5>, R<6>, R<7>, and R<8> each independently represents hydrogen, halogeno, hydroxy, cyano, carboxy, sulfo, sulfamoyl, N-alkylaminosulfonyl, N-phenylaminosulfonyl, etc.; and n is 0 or 1) or a salt of the compound. Also provided are an ink composition containing the compound or salt, recording method and colored object. The ink composition containing the azo compound has excellent long-term storage stability and gives a print excellent in light resistance and ozone resistance.

Disclosed is an aqueous black ink composition which enables the formation of an excellent black recorded image having extremely high ozone gas resistance and a neutral and achromatic color. The ink composition comprises: a dye (I) which comprises at least one compound represented by specific formula (1) or at least one tautomer or salt of the compound; a dye (II) which comprises at least one compound represented by specific formula (3) or at least one tautomer or salt of the compound; and a dye (III) which comprises at least one compound represented by specific formula (4) or at least one tautomer or salt of the compound. In formula (1), R1 and R2 independently represent a hydrogen atom, a sulfo group or the like; R3 and R4 independently represent a halogen atom, a sulfo group or the like; and n represents 0 or 1. In formula (3), m represents 0 or 1; R101 to R103 independently represent a hydrogen atom, a sulfo group or a C1-C4 alkoxy group; and a group D represents a phenyl or naphthyl group substituted by 1 to 3 sulfo groups. In formula (4), R201 to R204 independently represent a hydrogen atom, or a C1-C4 alkoxy group substituted by a sulfo group.

The present invention aims to provide an ink jet black ink which can improve weatherability, optical density and sticking recovery property of nozzles of a recording head. According to the present invention, an ink jet black ink is provided which comprises at least a coloring-material and a water-soluble organic solvent, wherein the coloring material is a compound represented by the following general formula (I) or a salt thereof, and the water-soluble organic solvent is a water-soluble organic solvent having a relative permittivity of from 30.0 or more to less than 70.0 at 20 DEG C and capable of dissolving the compound represented by the following general formula (I) or a salt thereof, by 1.0 mass % or more at 25 DEG C, and is in a content of 50.0 mass % or more with respect to the total content of all water-soluble organic solvents contained in the ink jet black ink.

A coated matte PP carbon ribbon printing synthetic paper, the synthetic paper comprises a PP synthetic paper base material and a coating layer coated on the surface of the base material, the coating layer comprises the following raw materials in parts by weight: The solid parts by weight of the layer are taken as the reference parts, the others are measured in parts by solid content, the moisture of the solution property is counted in the parts of water, 100 parts of heat insulation layer, 80-180 parts of adhesive, 0.08- of water-retaining agent 0.15 part, lubricant 0.5-1.0 part, defoamer 0.2-0.8 part, and water 500-1300 part. The thermal insulation layer is used in the coating of the present invention, which effectively reduces the energy transmission loss of the print head, thereby preventing the poor transfer caused by the temperature reduction of the printed carbon ribbon, and reducing the energy level of the print head.

A method of producing a print on paper includes drying a selected region of the paper to a moisture content not to exceed that of the paper equilibrated to 20% RH. Hydrophilic liquid is deposited in a selected fluid pattern on the selected region of the paper within 15 seconds after the completion of drying. The paper is charged so that a charge pattern of charged and discharged areas is formed on the paper, and the discharged areas correspond to the selected fluid pattern. Charged dry ink having charge of the same sign as the charge in the charged areas is on the paper is deposited onto the paper in a dry ink pattern corresponding to the selected fluid pattern in the selected region. The dry ink is fixed to the paper.

Black ink compositions are provided. First embodiment contains a water-soluble long-wavelength dye L and a water-soluble short-wavelength dye S, in which the water-soluble short-wavelength dye S has 3or more azo groups per molecule and a naphthalene skeleton. Second embodiment contains a water-soluble short-wavelength dye S whose absorption spectrum in aqueous solvent has a maximum between 440 nmand 540 nm and a half-band width of 90 to 200 nm and a water-soluble long-wavelength dye L whose absorption spectrum in aqueous solvent has a maximum between 550 nm and 700 nm and a half-band width of 100 nm or more. Third embodiment contains water, a water-miscible organic solvent, and a coloring material, in which C. I. Direct Red 84 is contained as a water-soluble short-wavelength dye S.

The invention provides inkjet ink and an inkjet recording system. The inkjet ink includes a pigment, first particles containing a first resin, second particles containing a second resin, and a moisturizing agent. The first resin includes a repeating unit derived from methyl methacrylate at a content percentage of at least 30% by mass and no greater than 70% by mass relative to all repeating unitsincluded in the first resin. The second resin has a content percentage of the repeating unit derived from methyl methacrylate of less than 30% by mass relative all repeating units included in the second resin. The moisturizing agent includes an alpha, omega-alkanediol. In the inkjet recording system (100), a plurality of nozzles eject the inkjet ink to form dots on a recording medium conveyed by the conveyance section.

The present invention provides an inkjet recording method that is excellent in dischargeability and drying property of ink, has high fixability and high color development property, and has an offset printing type feel. In this inkjet recording method, an aqueous pigment ink is used to print an inkjet recording medium having an ink receiving layer comprising an inorganic pigment, starch and copolymer latex on a substrate, and the ink receiving layer contains 10 g of / m 2 More than 35g / m 2 The following inorganic pigments, the content of calcium carbonate in the inorganic pigment is not less than 80% by mass and not more than 100% by mass, the content of silicon dioxide is not less than 0% by mass and not more than 10% by mass, and the inkjet ink contains a self-dispersing pigment and One or more kinds of pigments in water-insoluble polymer particles containing pigments, water-soluble organic solvent A with a boiling point of 230°C or lower: 10% by mass to 48% by mass, water-soluble organic solvent B with a boiling point of 280°C or higher: 0% by mass to 5.0% by mass, and water: 42% by mass to 70% by mass.

The present invention relates to a water-based black ink composition comprising a water-soluble black dye (A) exhibiting ozone fastness and a condensate compound (B) of 4,4'-dinitrostilbene-2,2'-disulfonic acid and aminobenzenes or a reduction product (C) thereof. Said ink composition is suitable for use in ink-jet recording, and realizes neutral hue and black color of high printing density. Further, a printed matter obtained is excellent in ozone gas fastness, light fastness, moisture fastness and color rendering properties. Still further, storage stability as a recording liquid is excellent.

Provided is a gravure printing method having high print density and excellent highlighting suitability, even if a high-precision gravure printing plate having reduced thickness is used. The gravure printing method uses an aqueous ink and transfers 1-7 ml / m2 of the ink to a printing medium, said aqueous ink having a Zahn cup #3 viscosity at 20 DEG C of 11.0-20.0 s and an evaporation rate of no morethan 30% by mass in a drying test (1 g of ink dried for 30 mins at a temperature of 40 DEG C and an air flow of 1,400 L / min).

The invention provides non-aqua-system pigment ink for ink jet advantaged by prevention of transfer print pollution, high printing concentration, and reduction of strike-through. The non-aqua-system pigment ink for ink jet comprises acid modified petroleum olefin resin, pigment, and non-aqua-system solvent.

A black ink composition is provided and contains at least two coloring materials, water and additives, wherein the coloring material on the short wave side of the two coloring materials is a water-soluble dye having 3 or more azo groups in one molecule and a naphthalene skeleton, and the additives are selected from the group consisting of a bronzing inhibitor and an ozone resisting improver.