Patent application number | Description | Published |
20080248260 | Recording Ink, Ink Cartridge, Ink Record, Inkjet Recording Apparatus, and Inkjet Recording Method - The object of the invention to provide a recording ink with excellent discharge stability and storage stability, which rapidly penetrates into a recording medium and forms a coating, and which will never generate smearing upon high-speed printing or double-sided printing, and which excels in marker resistance, and which enables high quality image recording with less bleeding, and the ink cartridge, the ink record, the inkjet recording apparatus, and the inkjet recording method using the recording ink. The recording ink containing at least water, a colorant, a resin fine-particle, a water-soluble organic solvent and a penetrant, in which the penetrant is a diol compound whose carbon number is 7 to 11 and the resin fine-particle is a silicone modified acrylic resin not containing a hydrolyzable silyl group. | 10-09-2008 |
20080254228 | Recording Ink, Inkjet Recording Method and Inkjet Recording Apparatus - There is provided a recording ink containing at least: water; a water-soluble organic solvent; a surfactant; and a carbon black having a hydrophilic group on a surface thereof, wherein the carbon black releases humic acid in an aqueous dispersion of the carbon black, which is recovered from the recording ink, a concentration of the humic acid released in the aqueous dispersion containing 20% by mass of the carbon black of is expressed with a maximum absorbance at a wavelength of 230 nm to 260 nm, and the recording ink has the maximum absorbance of 5.0 to 20.0 at the wavelength of 230 nm to 260 nm. | 10-16-2008 |
20080273045 | Ink Jet Recording Method, Recording Device, Ink/Recording Medium Set, Recording Matter - An ink-jet recording process which conducts recording by imparting ink onto the surface of a recording medium according to recording information, where the recording medium has a base material and a porous ink receiving layer thereon containing inorganic particles having a BET specific surface area of at least 150 m | 11-06-2008 |
20080302268 | INK FOR INK JET RECORDING, INK JET RECORDING METHOD, INK CARTRIDGE AND INK JET RECORDING APPARATUS - An ink for ink jet recording which is used for an ink jet printer in which at least a portion of a member being in contact with the ink is formed by any one of a borosilicate glass, a soda lime glass, a photosensitive glass, single crystal silicon, polysilicon, a silicon oxide film, a titanium nitride film, a zirconium film, a titanium oxide film, and a silicon nitride film, wherein a corrosion inhibitor is contained, and a phosphonium ion represented by the general formula (Formula 1) described below is contained: | 12-11-2008 |
20090098312 | RECORDING INK, INK CARTRIDGE, INKJET RECORDING METHOD, AND INKJET RECORDING APPARATUS - The present invention provides a recording ink including a composite pigment particle, a water-soluble solvent, and water, wherein the composite pigment particle is a primary particle coated with a coating resin, wherein the primary particle is a white pigment on the surface of which an oil-soluble dye is adsorbed or attached. In one aspect, the white pigment is preferably at least one selected from a white inorganic pigment, a pearl pigment, and an extender pigment, in another aspect, the coating resin is preferably one of a (meth)acrylic resin, a polyester resin, and a polyurethane resin, wherein the acid value of the coating resin is from 50 mgKOH/g to 250 mgKOH/g, and in another aspect, an average particle diameter (D50%) of the composite pigment particle is preferably 150 nm or less. | 04-16-2009 |
20090130313 | INKJET MEDIA, RECORDING METHOD, RECORDING APPARATUS, INK-MEDIA SET, AND INK RECORDED MATTER - To provide an ideal inkjet recording method capable of full-color printing and of inexpensively providing prints that have a texture similar to those of commercial prints and that offer excellent print quality, image density, image fidelity and smear resistance, by combining a specific recording media and a specific pigment-based inkjet ink. The inkjet recording method uses an ink containing particulate coloring material for printing on a media that includes a substrate composed primarily of cellulose pulp and one or more coated layers formed on at least one surface of the substrate, wherein the media has an air permeability of 0.1 ml/min to 30 ml/min as measured using a Parker Print-Surf. | 05-21-2009 |
20090162569 | RECORDING INK, INK MEDIA SET, INK CARTRIDGE, INK RECORDED MATTER, INKJET RECORDING APPARATUS, AND INKJET RECORDING METHOD - There is provided a recording ink containing: solid constituents, which contain a colorant and a resin, and stay solid in the ink having a temperature of 25° C.; liquid constituents, which have a higher boiling point than a boiling point of water, and stay liquid in the ink having a temperature of 25° C.; and water, wherein a total amount of the solid constituents in the recording ink is in the range of 2.0% by mass or more to less than 20% by mass, wherein a ratio A/B of a total amount of the liquid constituents in the recording ink A to the total amount of the solid constituents in the recording ink B is from 0.70 to 1.75, and wherein the viscosity of the recording ink at 25° C. is 10 mPa s or less. | 06-25-2009 |
20090176070 | Pigment Dispersion, Recording Ink, Ink Cartridge, Ink-Jet Recording Method and Ink-Jet Recording Apparatus - 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. | 07-09-2009 |
20090186162 | INK FOR INKJET RECORDING, INK SET FOR INKJET RECORDING, INK MEDIA SET FOR INKJET RECORDING, INK CARTRIDGE, INKJET RECORDING METHOD, AND INKJET RECORDING APPARATUS - To provide an ink for inkjet recording containing water, water-soluble organic solvent, water-dispersible resin, fluorochemical surfactant or derivative thereof, and coloring agent containing pigment, wherein the ink has a surface tension of 20-35 mN/m and viscosity of 5 mPa·s or more at 25° C., total amount of the water-dispersible resin and the coloring agent in the ink is 5-40% by mass, and mass ratio A/B of the water-dispersible resin A to the coloring agent B is 0.5-4, wherein the ink is applied for a recording medium for inkjet recording containing a support containing cellulose pulp, and one or more barrier layers disposed on at least one face of the support, and wherein the barrier layer contains 30% by mass or more of inorganic pigment having refractive index of 1.5 or more, excluding aluminum hydrate, and 10% by mass or less of inorganic pigment having a refractive index of less than 1.5. | 07-23-2009 |
20090239044 | INK FOR RECORDING, AND INK CARTRIDGE, INK RECORDED MATTER, INKJET RECORDING APPARATUS AND INKJET RECORDING METHOD USING THE SAME - There is provided an ink for recording, which contains: a coloring agent; a water-dispersible resin; a wetting agent; a surfactant; and water, wherein a total solid content of the coloring agent and the water-dispersible resin is 10% by mass to 30% with respect to a total mass of the ink, a ratio B/C is 0.1 to 1.6 where B is a solid content of the coloring agent in the ink, and C is a solid content of the water-dispersible resin in the ink, a viscosity of the ink is 5 mPa·s to 20 mPa·s at 25° C., and a surface tension of the ink is 35 mN/m or less. | 09-24-2009 |
20090258196 | INKJET RECORDING INK AND RECORDING MEDIA SET, INKJET RECORDING METHOD, RECORDED MATTER AND RECORDING APPARATUS - There is provided an inkjet recording ink and recording media set, which contains: an inkjet recording ink; and a recording medium, wherein the inkjet recording ink comprises at least: water; a water-soluble organic solvent; and a colorant containing carbon black, and having a volume average particle diameter of 40 nm to 100 nm, wherein the recording medium contains: a substrate; and a coating layer on at least one side of the substrate, and wherein an amount of pure water transferred to the recording medium, as measured with a dynamic scanning absorptometer at 23 C and 50% RH, at a contact time of 100 ms is 2 ml/m | 10-15-2009 |
20090263632 | RECORDING INK, RECORDING INK SET, RECORDS, INK CARTRIDGE, RECORDING METHOD, AND INKJET RECORDING APPARATUS - The present invention provides a recording ink set containing a black ink, a cyan ink, a magenta ink, and a yellow ink, each of which contains water, a water-insoluble color material, a water-soluble organic solvent, and a surfactant, wherein the black ink and at least one of the inks other than the black ink respectively contain a different water-soluble organic solvent; and the surface tension of the water-soluble organic solvent(s) used only for the inks other than the black ink is higher than that of the water-soluble organic solvent used only for the black ink; and the present invention also provides a recording method using the recording ink set. | 10-22-2009 |
20090291213 | RECORDING MEDIA, RECORDING MEDIA-INK SET, INKJET RECORDING METHOD AND INKJET RECORDING APPARATUS - To provide an inkjet recording method including: flying ink by application of stimulation to the ink to form an image on a recording media, wherein the recording media has at least one barrier layer of 10 m or less in thickness on at least one surface of a substrate comprising a cellulose pulp, the barrier layer contains 30% by mass or more of an inorganic pigment with a refraction index of 1.5 or less other than alumina, and the content of pigment with a refraction index of less than 1.5 in the barrier layer is 10% by mass or less, wherein the ink contains either a pigment or colored fine particle as coloring material, and a coloring material fixing constituent, and the surface tension of the ink is 25 mN/m or less, and the total amount of the ink on the recording media is 15 g/m2 or less. | 11-26-2009 |
20100194837 | IMAGE RECORDING METHOD - The image recording method includes ejecting an ink to form an image on the surface of a recording layer of a recording medium; and then applying a glossiness imparting liquid on the surface of the recording medium. The ink includes a particulate colorant, a surfactant and water, and has a solid content of not lower than 6% by weight. The recording layer is located overlying a substrate including cellulose pulp as a main component and includes an inorganic pigment and a styrene-butadiene copolymer. The surface of the recording medium bearing the recording layer absorbs the ink in an amount of from 1 ml/m | 08-05-2010 |
20100196601 | RECORDING INK, INK CARTRIDGE, INK MEDIA SET, INK- JET RECORDING METHOD AND INK-JET RECORDING APPARATUS - An ink-jet recording ink including a colorant dispersible in water, a water-soluble organic solvent used as a wetting agent, a surfactant, a penetrant, a water-dispersible resin, and water, wherein when 2.5 g of the ink is weighed, placed in a glass Petri dish having a diameter of 33 mm and stored for 24 hr at a temperature of 50° C.±0.5° C. and a humidity of 12%±5%, the evaporation rate of a solvent (water+water-soluble organic solvent) in the ink is 50% by weight or more, and an ink residue has a viscosity of 20,000 mPa-S or greater, and wherein by storing the ink residue for 6 hr at a temperature of 23° C.±0.5° C. and a high humidity of 95%±3% to allow it to absorb moisture, the amount of moisture contained in the ink residue becomes 30% by weight to 40% by weight, in which case the ink residue has a viscosity of less than 500 mPa s. | 08-05-2010 |
20100196602 | INK SET, INK CARTRIDGE, INKJET RECORDING METHOD, AND INKJET RECORDING APPARATUS - An ink set includes at least two aqueous inks A and B with different colors, the inks A and B used in an inkjet recording method in which the inks A and B are superimposed for formation of a color image, wherein the ink A contains water-dispersible colorant A1 free of a surfactant-based dispersant, and anionic compound A2, and wherein the ink B contains water-dispersible colorant B1 containing a surfactant-based dispersant. | 08-05-2010 |
20100196603 | INKJET MEDIUM, INK AND INKJET RECORDING METHOD - An inkjet medium having a support mainly containing a cellulose pulp, and a coat layer containing a pigment and an adhesive, the coat layer formed on at least one surface of the support, wherein the pigment in the coat layer as an outermost layer contains at least light calcium carbonate, kaolin and gel type silica, and has an average oil absorption of 70 ml/100 g to 120 ml/100 g. | 08-05-2010 |
20100196673 | INK-JET RECORDING METHOD, INK-JET RECORDING APPARATUS AND RECORDED MATTER - An ink-jet recording method including recording onto a recording medium a black image of composite black using a black ink and color inks, wherein the black ink includes water, a water-soluble organic solvent, a surfactant, and a carbon black whose volume average particle diameter is 40 nm to 100 nm, and the color inks include a cyan ink, a magenta ink and a yellow ink, wherein the mass ratio (A/B) of a solid content A to a water-soluble organic solvent content B in the black ink is in the range of 1/8 to 1/15, and wherein the recording medium includes a support with a coating layer, and the amounts of purified water transferred to the recording medium at contact periods of 100 ms and 400 ms at a temperature of 23 C and a relative humidity of 50% are 2 ml/m2 to 35 ml/m2 and 3 ml/m2 to 40 ml/m2 respectively. | 08-05-2010 |
20100215855 | RECORDING INK, RECORDING MEDIUM, INK MEDIA SET, INK RECORDED MATTER, INK JET RECORDING METHOD, AND INK JET RECORDING APPARATUS - The present invention provides an ink-media set, record printed by use of the ink-media set, an inkjet printing method, and an inkjet printing apparatus which includes ink that has at least water, dye, and humectant and surface tension thereof is 20 to 35 mN/m at 25° C., a support, and a recording medium having the support and at least one surface thereof has a coating layer wherein transfer rate of the ink to the recording medium measured by a dynamic scanning absorptometer in 100 ms of contact time is 4 to 15 ml/m | 08-26-2010 |
20100245416 | INK-JET RECORDING METHOD, INK, INK CARTRIDGE, RECORDING APPARATUS, AND RECORDED MATTER - An ink-jet recording method including: printing on a medium by ejecting thereon ink having a pH value of 8 or more and containing at least a particulate colorant, emulsion resin and surfactant, the medium prepared by providing at least a coat layer containing a pigment on at least one surface of a substrate containing cellulose pulp as a main component, wherein printing is performed at a deposited ink amount of 15 g/m2 or less, and wherein the medium has a pH value of 8 or more at a paper surface, and the amount of pure water transferring onto a surface of the medium having the coat layer after a contact time of 100 ms measured with a dynamic scanning absorptometer is 30 mL/m2 or less and the amount of pure water transferring onto the surface of the medium after a contact time of 400 ms is 35 mL/m2 or less. | 09-30-2010 |
20100265292 | INK, INK CARTRIDGE, INK JET RECORDING APPARATUS, AND INK JET RECORDING METHOD - To provide an ink jet recording method including: performing image recording on a recording medium to obtain an ink adhesion quantity of 15 g/m | 10-21-2010 |
20100271435 | RECORDING INK, INK CARTRIDGE, INK RECORD, INKJET RECORDING APPARATUS, AND INKJET RECORDING METHOD - The object of the invention to provide a recording ink with excellent discharge stability and storage stability, which rapidly penetrates into a recording medium and forms a coating, and which will never generate smearing upon high-speed printing or double-sided printing, and which excels in marker resistance, and which enables high quality image recording with less bleeding, and the ink cartridge, the ink record, the inkjet recording apparatus, and the inkjet recording method using the recording ink. The recording ink containing at least water, a colorant, a resin fine-particle, a water-soluble organic solvent and a penetrant, in which the penetrant is a diol compound whose carbon number is 7 to 11 and the resin fine-particle is a silicone modified acrylic resin not containing a hydrolyzable silyl group | 10-28-2010 |
20100277541 | INKJET RECORDING MEDIUM AND INKJET RECORDING METHOD - An ink jet recording medium having an ink receiving layer containing a binder which containing an acrylonitrile butadiene type copolymer, the butadiene concentration of the copolymer is 50 weight % or more, and an inorganic pigment on one or two sides of a base paper mainly composed of wood pulp, wherein the concentration ratio of the acrylonitrile butadiene type copolymer to 100 parts by weight of the inorganic pigment is from one part by weight to eight parts by weight, while 60 weight % or more of the inorganic pigment is kaolin with particles of 0.4 μm or more and below 4.2 μm which account for 64% or more as the cumulative value of the volumetric basis when measured using a laser diffraction method, and the surface roughness of the ink receiving layer is from 0.6 μm to 1.4 μm when a hard backing is used at a clamp pressure of 1,000 kPa according to JIS P8151. | 11-04-2010 |
20100279035 | INK-JET RECORDING INK, INK-JET RECORDING INK SET, INK-JET RECORDING INK MEDIA SET, INK CARTRIDGE, INK-JET RECORDING METHOD AND INK-JET RECORDING APPARATUS - An ink-jet recording ink including water, a water-soluble organic solvent, a pigment as a colorant (B), and at least one fluorochemical surfactant selected from compounds represented by Structural Formula (1) below, Structural Formula (1) where R | 11-04-2010 |
20100295891 | IMAGE FORMING METHOD AND IMAGE FORMED RECORD - An image forming method of the present invention including applying a pretreatment liquid to a recording medium, and discharging an inkjet recording ink dropwise according to an image signal to form an image on the recording medium on which the pretreatment liquid has been applied, wherein the recording medium is regular paper which has no coat layer, the pretreatment liquid contains a cationic polymer compound, a surfactant A, water and a water-soluble organic acid, and the inkjet recording ink contains a water-dispersible colorant, a water-soluble organic solvent, a surfactant B, a penetrating agent and water, and wherein the pretreatment liquid has a static surface tension of 20 mN/m to 30 mN/m. | 11-25-2010 |
20110057981 | RECORDING INK AS WELL AS INK MEDIA SET, INK CARTRIDGE, INK RECORDED MATTER, INKJET RECORDING APPARATUS AND INKJET RECORDING METHOD - A recording ink containing at least a solid component which contains a colorant and a resin and is a solid at 25° C., a liquid component which has a higher boiling point than that of water and is a liquid at 25° C. and water, wherein the total content of the liquid component in the recording ink is 20% by mass or less, the total content of the solid component in the recording ink is 20% by mass or more, and the total content of a resin component in the solid component is 40% by mass to 95% by mass relative to a total amount of the solid component is provided. | 03-10-2011 |
20110205288 | INKJET RECORDING INK, INKJET RECORDING INKSET, INK CARTRIDGE, INKJET RECORDING METHOD, AND RECORDED MATTER - An inkjet recording ink containing a colorant, a surfactant A, a surfactant B, a water soluble organic solvent, and water, wherein the surfactant A is expressed by any one of Structural Formula (1) and Structural Formula (2), and the surfactant B is expressed by Structural Formula (3): in Structural Formula (1), R1 represents hydrogen, an alkyl group, or an acyl group; Rf represents —CF | 08-25-2011 |
20110216123 | INKJET RECORDING INK CONTAINING FLUORINE BASED SURFACTANT, INKJET RECORDING INK SET, AND INKJET RECORDING APPARATUS CONTAINING THE INKJET RECORDING INK - An inkjet recording ink including a water-soluble organic solvent, a colorant, at least one fluorine-based surfactant having a chemical structure represented by Structural Formula (I) below, and water, | 09-08-2011 |
20110316947 | INKJET RECORDING INK, INK CARTRIDGE, INKJET RECORDING APPARATUS, AND INK RECORDED MATTER - An inkjet recording ink including at least a pigment, fine resin particles, a water soluble organic solvent, and water, wherein a polymer chain is grafted onto a surface of the pigment, and the polymer chain is composed of at least one monomer unit, which is selected from the monomers represented by the following Chemical Formulas (1) to (4): Chemical Formula (1) where R1 represents H or CH3, and “n” represents the number of carbon atoms; Chemical Formula (2) where R2 and R3 each represent H or CH3, and “m” represents the number of units repeated; Chemical Formula (3) where R4 and R5 each represent H or CH3, and “p” is the number of units repeated; and Chemical Formula (4) where R6 and R7 each represent H or CH3, and “k” and “l” each represent the number of units repeated. | 12-29-2011 |
20120098883 | INK FOR INKJET RECORDING, INKJET RECORDING METHOD USING THE SAME, INK CARTRIDGE HOUSING THE SAME, AND RECORDED MATTER - 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. | 04-26-2012 |
20120293582 | PIGMENT DISPERSION, RECORDING INK, INK CARTRIDGE, INK-JET RECORDING METHOD AND INK-JET RECORDING APPARATUS - A recording ink containing a pigment dispersion, a surfactant, a water-dispersible resin, a humectant and water. The pigment dispersion contains a pigment dispersant, which is an anionic surfactant or a nonionic surfactant having an HLB value of 10 to 20. The pigment dispersion also contains a polymer dispersion stabilizer, which is an alpha-olefin/maleic anhydride copolymer expressed by the formula (1) below, where R is an alkyl group having 6 to 25 carbon atoms, and where the mass average molecular weight of the copolymer is 5000 to 20000. An ink cartridge, an inkjet recording method, an inkjet recording apparatus, and an ink recorded matter, each employing the recording ink, are also provided. | 11-22-2012 |
20120320133 | INK FOR INKJET RECORDING, INK SET FOR INKJET RECORDING, INK MEDIA SET FOR INKJET RECORDING, INK CARTRIDGE, INKJET RECORDING METHOD, AND INKJET RECORDING APPARATUS - An ink for inkjet recording containing water, water-soluble organic solvent, water-dispersible resin, fluorochemical surfactant or derivative thereof, and coloring agent containing pigment, where the ink has a surface tension of 20-35 mN/m and viscosity of ≧5 mPa·s at 25° C., total amount of the water-dispersible resin and the coloring agent in the ink is 5-40% by mass, and mass ratio A/B of the water-dispersible resin A to the coloring agent B is 0.5-4, where the ink is applied to a recording medium containing a support containing cellulose pulp, and one or more barrier layers disposed on a face of the support, and where the barrier layer contains ≧30% by mass of inorganic pigment having refractive index of ≧1.5, excluding aluminum hydrate, and ≦10% by mass of inorganic pigment having a refractive index of <1.5. | 12-20-2012 |
20120328853 | INKJET RECORDING INK SET, INKJET RECORDING METHOD AND RECORDED MATTER - An inkjet recording ink set including: a black ink; and color inks composed of a cyan ink, a magenta ink and a yellow ink, wherein the black ink contains a water-soluble solvent, a surfactant, water, and colored polymer emulsion particles obtained by dispersing, in water, carbon black coated with a vinyl polymer or a polyester polymer, wherein the cyan ink, the magenta ink and the yellow ink each contain a corresponding color dye, a water-soluble solvent, and water, and wherein an amount S of the water-soluble solvent contained in each color ink occupies 40% by mass or more of a total amount of each color ink, a ratio (S/W) of the amount S of the water-soluble solvent to an amount W of the water contained in each color ink is in the range of 0.7 to 1.6, and each color ink does not have a flash point. | 12-27-2012 |
20120328854 | INKJET RECORDING INK SET, INKJET RECORDING METHOD, AND RECORDED MATTER - An inkjet recording ink set including a black ink and color inks, wherein the black ink and the color inks each contain at least a dye, a water-soluble solvent and water and each have a viscosity of 5 mPa-s to 20 mPa-s at 25° C., and wherein the respective color inks each satisfy a mass ratio relationship of S/W≧1, and the black ink satisfies a mass ratio relationship of S/W<1, where S denotes an amount of the water-soluble solvent contained in the respective inks, and W denotes an amount of the water contained in the respective inks. | 12-27-2012 |
20130101814 | LIQUID COMPOSITION, RECORDING METHOD, AND RECORDED MATTER - A liquid composition for agglutinating particles having a negative charge which are dispersed in a dispersion liquid, the liquid composition including: an organic acid ammonium salt represented by Formula (1), and water, Formula (1) where R | 04-25-2013 |
20130113860 | INKJET INK, INK CARTRIDGE, INKJET RECORDING METHOD, INKJET RECORDING DEVICE, AND INKJET RECORDED MATTER - To provide an inkjet ink, which contains: water; a wetting agent; a surfactant; and a colorant, wherein the wetting agent contains at least an amide compound represented by the following structural formula (I): | 05-09-2013 |
20130143008 | LIQUID COMPOSITION, RECORDING METHOD, AND RECORDED MATTER - A liquid composition containing: a water-soluble cationic polymer obtained by polymerizing monomers containing epihalohydrin and at least one of amine and amide; and water, wherein the liquid composition is for agglutinating negatively charged particles which are dispersed in a dispersion liquid. | 06-06-2013 |
20130194345 | CLEANING FILLING LIQUID, CARTRIDGE, CLEANING FILLING METHOD, AND INKJET RECORDING DEVICE - A cleaning filling liquid for inkjet device comprising: Water; 10.0% by mass to 45% by mass per whole amount of the cleaning filling liquid of an amide compound having following structural formula (1). | 08-01-2013 |
20140002539 | INKJET INK, INKJET RECORDING METHOD, AND INKJET RECORDING DEVICE | 01-02-2014 |
20140192112 | IMAGE FORMING METHOD AND IMAGE FORMING APPARATUS - An image forming method includes discharging an inkjet ink including a water-dispersible colorant, a wetter, a surfactant, a penetrant water-dispersible polyurethane resin having a median diameter of from 0.01 to 0.10 μm water and at least one of a polyethylene wax and a paraffin wax on the surface of the recording medium on which the inkjet ink is discharged. | 07-10-2014 |
20150077482 | AQUEOUS INK FOR INKJET, INK CARTRIDGE, AND INKJET RECORDING DEVICE - Aqueous ink for inkjet contains water; a hydrosoluble organic solvent; a pigment; and a resin, wherein the hydrosoluble organic solvent contains 2,3-butane diol having meso-2,3-butane diol in an amount of 50% by weight or more in 2,3-butane diol and 2,3-butane diol accounts for 5% by weight to 40% by weight of the entire of the aqueous ink. | 03-19-2015 |