| 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 |
| 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 |
| 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 |
| 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 |
| 20100020142 | REFILL INK AND INK CARTRIDGE - A refill ink with which a used ink cartridge is to be refilled, including: a colorant, a wetting agent, and a surfactant, wherein in a mixed ink formed by mixing a residual ink remaining in the used ink cartridge and the refill ink at a volume ratio (residual ink:refill ink) of 1:1, the number A of coarse particles of 0.5 μm or greater in diameter measured immediately after the mixing and the number B of coarse particles of 0.5 μm or greater in diameter measured after the mixed ink has been left to stand at 25° C. and at RH of 50% for 24 hours satisfy the relationship B/A≦2. | 01-28-2010 |
| 20100227067 | 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 (P1) as a colorant (B), and at least one fluorochemical surfactant selected from compounds represented by Structural Formula (1) below, | 09-09-2010 |
| 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 |
