Ink composition, ink set, and image forming method
US8833918B2 · kind B2 · utility
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13Claims
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Key dates
| Filing date | Jul 31, 2013 |
| Grant date | Sep 16, 2014 |
| Priority date | — |
| Expiry date | Jul 31, 2033 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09C3/10
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
An ink jet composition which contains a pigment selected from the group consisting of a self-dispersing pigment and a resin-coated pigment in which at least a portion of a surface of a pigment particle is coated with a water-insoluble resin; at least one selected from the group consisting of polyvinylpyrrolidone, polyvinyl alcohol and polyethylene glycol, the content of which is from 0.01% by mass to less than 1.00% by mass based on the total mass of the composition; a resin particle that is insoluble or hardly soluble in water; a wax particle that is insoluble or hardly soluble in water; and water.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.