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 |
20100010157 | AQUEOUS INK, INK JET RECORDING METHOD, INK CARTRIDGE, RECORDING UNIT AND INK JET RECORDING APPARATUS - The invention provides an aqueous ink comprising a polymer having hydroxyl groups and a pigment, which can provide images excellent in scratch resistance and highlighter resistance and can inhibit the seeping out phenomenon of the polymer and the deterioration of storage stability and ejection characteristics even when it is stored for a long period of time. The aqueous ink comprises a polymer having hydroxyl groups and a pigment, wherein a proportion of a content of a polymer that is not adsorbed on the pigment out of the polymer having hydroxyl groups to the content of the pigment in the ink is 2.0 mass % or more, and a content (mass %) of the polymer that is not adsorbed on the pigment out of the polymer having hydroxyl groups is 0.20 mass % or less based on the total mass of the ink. | 01-14-2010 |
20110141194 | INKJET INK AND RECORDING UNIT - An inkjet ink contains a pigment, a water-soluble resin having a hydrophobic group, an inclusion compound, and water. The water-soluble resin includes a part adsorbed to the pigment and a part not adsorbed to the pigment. The inclusion compound is cyclodextrin or a cyclodextrin derivative. The mass ratio of the part not adsorbed of the water-soluble resin to the inclusion compound is in the range of 0.30 to 9.00. | 06-16-2011 |
20110181655 | AQUEOUS INK, INK JET RECORDING METHOD, INK CARTRIDGE, RECORDING UNIT AND INK JET RECORDING APPARATUS - The invention provides an aqueous ink comprising a polymer having hydroxyl groups and a pigment, which can provide images excellent in scratch resistance and highlighter resistance and can inhibit the seeping out phenomenon of the polymer and the deterioration of storage stability and ejection characteristics even when it is stored for a long period of time. The aqueous ink comprises a polymer having hydroxyl groups and a pigment, wherein a proportion of a content of a polymer that is not adsorbed on the pigment out of the polymer having hydroxyl groups to the content of the pigment in the ink is 2.0 mass % or more, and a content (mass %) of the polymer that is not adsorbed on the pigment out of the polymer having hydroxyl groups is 0.20 mass % or less based on the total mass of the ink. | 07-28-2011 |
20110269885 | TRANSFER INK JET RECORDING AQUEOUS INK - An aqueous ink for a transfer ink jet recording method including applying to an intermediate transfer member a reaction liquid which forms an increased viscosity ink image by coming into contact with a coloring material in the ink, applying the ink to the intermediate transfer member by an ink jet device to form an intermediate image, and bringing a printing object into contact with the intermediate transfer member to transfer the image to the object. The aqueous ink contains a coloring material which is a polymer dispersion pigment dispersed in the aqueous medium with a polymer having a hydroxyl group in its structure as a dispersant, a nonionic surfactant which is an alcohol ether surfactant a 1% aqueous solution of which has a cloud point of 33° C. or less and which has a C | 11-03-2011 |
20130088543 | IMAGE-FORMING METHOD - An image-forming method includes a reaction solution-applying step of applying a reaction solution containing a thickening agent and a colorant-aggregating component aggregating a colorant in ink to an intermediate transfer medium, a first ink-applying step of applying a first ink to the intermediate transfer medium provided with the reaction solution, a second ink-applying step of applying a second ink to the intermediate transfer medium provided with the first ink, and a transfer step of transferring an intermediate image formed on the intermediate transfer medium provided with the second ink to a recording medium. An ink layer formed on the intermediate transfer medium by applying the first ink thereto has a yield value of 0.5 Pa or more. | 04-11-2013 |
20130113864 | AQUEOUS INK, INK JET RECORDING METHOD, INK CARTRIDGE, RECORDING UNIT AND INK JET RECORDING APPARATUS - The invention provides an aqueous ink comprising a polymer having hydroxyl groups and a pigment, which can provide images excellent in scratch resistance and highlighter resistance and can inhibit the seeping out phenomenon of the polymer and the deterioration of ejection characteristics even when it is stored for a long period of time. The aqueous ink comprises a polymer having hydroxyl groups, a pigment and a water-soluble organic solvent, wherein the water-soluble organic solvent comprises a polyhydric alcohol having a value of number of hydroxyl groups/number of carbon atoms in its molecule of 0.50 or less. | 05-09-2013 |
20130250020 | IMAGE RECORDING METHOD - An image recording method includes recording an intermediate image by applying an ink to an intermediate transfer body, the ink containing a coloring material and polymer fine particles; and transferring the intermediate image onto a recording medium while heating the intermediate. The polymer fine particles are composed of a copolymer of a first compound that satisfies condition (1) (a polymer obtained by homopolymerization of the first compound is a crystalline polymer having a melting point equal to or lower than a temperature of the transfer) and a second compound that satisfies condition (2) (a polymer obtained by homopolymerization of the second compound is an amorphous polymer having a glass transition point equal to or lower than the temperature of the transfer). | 09-26-2013 |
20130342622 | IMAGE RECORDING METHOD - Provided is an image recording method having high transfer efficiency. An image recording method includes an intermediate image-recording step of recording an intermediate image by applying ink to an intermediate transfer body and also includes a transfer step of transferring the intermediate image to a recording medium by heating the intermediate image to a transfer temperature. The ink contains polymer particles having a softening point not higher than the transfer temperature and at least one of a compound represented by Formula (1) and a compound represented by Formula (2). | 12-26-2013 |
20140307023 | AQUEOUS INK, INK JET RECORDING METHOD, INK CARTRIDGE, RECORDING UNIT AND INK JET RECORDING APPARATUS - The invention provides an aqueous ink comprising a polymer having hydroxyl groups and a pigment, which can provide images excellent in scratch resistance and highlighter resistance and can inhibit the seeping out phenomenon of the polymer and the deterioration of ejection characteristics even when it is stored for a long period of time. The aqueous ink comprises a polymer having hydroxyl groups, a pigment and a water-soluble organic solvent, wherein the water-soluble organic solvent comprises a polyhydric alcohol having a value of number of hydroxyl groups/number of carbon atoms in its molecule of 0.50 or less. | 10-16-2014 |
20140320573 | TRANSFER IMAGE RECORDING METHOD AND INK - In transfer image recording with the use of an intermediate transfer body whose surface on the side where an intermediate image is to be formed has a polyalkylsiloxane structure, an ink is used that contains at least a pigment, water, a water-soluble organic solvent, and a polyether-modified siloxane compound. Good and poor solvents for the polyether-modified siloxane compound are contained as the water-soluble organic solvent. The content of the polyether-modified siloxane compound in the ink is 3% by mass or more and 20% by mass or less based on the total mass of the ink. | 10-30-2014 |
20140368593 | IMAGE RECORDING METHOD - An image recording method includes an intermediate image-forming step of forming an intermediate image by applying an ink to an intermediate transfer body, a temperature adjusting step, and a transfer step of transferring the intermediate image onto a recording medium, in this order. The ink includes polymer particles and a surfactant which is at least one selected from a compound represented by general formula (1) and a compound represented by general formula (2). In the temperature adjusting step, a temperature of the intermediate image is adjusted to a temperature higher than or equal to a cloud point of the surfactant. | 12-18-2014 |
20150035899 | IMAGE RECORDING METHOD - An image recording method includes applying an ink containing a pigment in a dispersion to a region of a recording medium, and applying a liquid composition capable of destabilizing the dispersion of the pigment in the ink to the recording medium so as to cover at least part of the region of the recording medium. The ink further contains polymer particles, and at least one surfactant selected from the group consisting of the compounds expressed by General Formula (1) and the compounds expressed by General Formula (2). In the ink, the content of the polymer particles is 3% by mass or more and 20% by mass or less relative to the total mass of the ink, and the mass ratio of the polymer particles to the surfactant is 1 or more and 10 or less. | 02-05-2015 |
20150037502 | IMAGE RECORDING METHOD - An image recording method includes applying an ink containing a pigment and polymer particles to a region of a recording medium, and applying a liquid composition capable of destabilizing the dispersion of the pigment in the ink to the recording medium so as to cover at least part of the region of the recording medium. The liquid composition contains 6.0% by mass or more of at least one surfactant selected from the group consisting of the compounds expressed by General Formula (1) and the compounds expressed by General Formula (2) relative to the total mass of the liquid composition. The content of the polymer particles in the ink is 1.0% by mass or more relative to the total mass of the ink. | 02-05-2015 |
20150070435 | IMAGE-RECORDING METHOD AND INK SET - An image-recording method includes applying an ink to a recording medium and applying a liquid composition to the recording medium. The ink contains a pigment, and the liquid composition disturbs the dispersion state of the pigment in the ink. The applied liquid composition at least partially overlaps the area where the ink is applied. The ink contains a resin particle, a water-soluble resin, and at least one surfactant selected from fluorinated surfactants and silicone surfactants. The surfactant content of the ink is 2% by mass or more based on the total mass of the ink, and the mass ratio of the water-soluble resin content to the surfactant content of the ink is 0.3 or more and 3.0 or less. | 03-12-2015 |