Ink, ink cartridge and ink jet recording process
US9388322B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 29, 2013 |
| Grant date | Jul 12, 2016 |
| Priority date | — |
| Expiry date | Jun 20, 2033 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09D11/322
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The invention provides an ink for use in an ink jet recording process in which an ink is ejected from a recording head by the action of thermal energy, the ink comprising a pigment, a water-soluble polyurethane polymer, a compound represented by a general formula (1) having a weight-average molecular weight of 1,000 or more and 8,500 or less, and a polyethylene oxide alkyl ether, the alkyl group of which has 12 or more carbon atoms,wherein, based on the total mass of the ink, the content (mass %) of the compound represented by the general formula (1) is 0.4 times or more and 10.0 times or less in terms of mass ratio with respect to the content (mass %) of the polyethylene oxide alkyl ether.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.