| Patent application number | Description | Published |
|---|
| 20080252708 | INK SET, INK CARTRIDGE SET, INK JET RECORDING METHOD, RECORDING UNIT, AND INK JET RECORDING APPARATUS - An ink set is provided which can prevent the occurrence of a new color mixing phenomenon in which a different ink comes into the insides of particular ink channels. The ink set is constituted of plurality of inks. The plurality of inks constituting the ink set is stored respectively in ink cartridges each having an ink storage portion which is brought into a hermetically-closed state. The difference in specific gravity between a first ink having the largest specific gravity and a second ink having the smallest specific gravity among the inks constituting the ink set is less than 0.020. | 10-16-2008 |
| 20090053414 | INK JET INK, METHOD OF PRODUCING INK JET INK, INK JET RECORDING METHOD, INK CARTRIDGE, AND CYAN INK - An object of the present invention is to provide an ink jet ink capable of suppressing bronzing phenomenon in which a reflected light of an image looks red, is excellent in color developability, and gives an image with suppressed bleeding even when formed adjacent to an image formed with a black ink. The ink jet ink comprises water, coloring materials, and a water-soluble organic solvent, in which the coloring materials comprise at least one dye selected from the group consisting of C.I. Direct Blue 199, C.I. Direct Blue 86, and C.I. Acid Blue 9, and a pigment having a copper phthalocyanine skeleton; the water-soluble organic solvent comprises a poor medium for the pigment having the copper phthalocyanine skeleton; and a content of the pigment having the copper phthalocyanine skeleton in the ink is less than 1 mass % with respect to a total mass of the ink jet ink. | 02-26-2009 |
| 20090315961 | INK JET INK, METHOD OF PRODUCING INK JET INK, INK JET RECORDING METHOD, INK CARTRIDGE, AND CYAN INK - An object of the present invention is to provide an ink jet ink capable of suppressing bronzing phenomenon in which a reflected light of an image looks red, is excellent in color developability, and gives an image with suppressed bleeding even when formed adjacent to an image formed with a black ink. The ink jet ink comprises water, coloring materials, and a water-soluble organic solvent, in which the coloring materials comprise at least one dye selected from the group consisting of C.I. Direct Blue 199, C.I. Direct Blue 86, and C.I. Acid Blue 9, and a pigment having a copper phthalocyanine skeleton; the water-soluble organic solvent comprises a poor medium for the pigment having the copper phthalocyanine skeleton; and a content of the pigment having the copper phthalocyanine skeleton in the ink is less than 1 mass % with respect to a total mass of the ink jet ink. | 12-24-2009 |
| 20100033522 | INK SET, INK JET RECORDING METHOD AND INK JET RECORDING APPARATUS - An object of the invention is to provide an ink set which enables to improve image density and scratch resistance of the images recorded using an ink containing a self-dispersion pigment and an ink containing a modified siloxane compound. An ink set to be used for ink jet recording including plural inks having a first ink and a second ink independently, wherein the first ink contains at least a pigment having functional groups on surface of pigment particles and a compound having adsorptivity to the pigment and the functional group density on the surface of the pigment particles is 1.5 μmol/m | 02-11-2010 |
| 20110175964 | INK, INK-JET RECORDING METHOD, AND INK CARTRIDGE - An ink containing a plurality of polymers and carbon black, wherein the plurality of polymers include a polymer A having an acid value of 200 mgKOH/g or more and 300 mgKOH/g or less and a polymer B having an acid value of 80 mgKOH/g or more and 180 mgKOH/g or less, the weight average molecular weight of the polymer A is larger than the weight average molecular weight of the polymer B, the carbon black has a DBP oil absorption of 75 mL/100 g or less and a specific surface area of 200 m | 07-21-2011 |
| 20110187786 | INK, INK CARTRIDGE, AND INK JET RECORDING METHOD - An ink contains a plurality of pigments and a plurality of polymers. The plurality of pigments include C.I. pigment yellow | 08-04-2011 |
| 20110187787 | INK, INK CARTRIDGE, INK-JET RECORDING METHOD, AND METHOD FOR PREPARING INK - An ink containing a plurality of organic pigments having hues forming an angle of 10 degrees or more with one another, wherein the bronze value B calculated by Formula 1 is 0.0 or more, and 12.0 or less, the saturation value C calculated by Formula 2 is 65.0 or more, and the 20-degree gloss value GB is 30.0 or more with respect to a predetermined recorded image recorded by the ink. | 08-04-2011 |
| 20110189396 | INK, INK CARTRIDGE, INK-JET RECORDING METHOD, AND INK SET - An ink containing a plurality of coloring materials having different hues, wherein the bronze value B, which is calculated from tristimulus values of reflected light, of illumination in the direction of an angle of 45 degrees to a normal to the image, in the direction of specular reflection and tristimulus values of illumination light under the same condition of the illumination by using Formula 1, with respect to a predetermined recorded image recorded by the above-described ink is 2.0 or less. | 08-04-2011 |
