Ink for ink-jet recording and color ink set
US6793724B2 · kind B2 · utility
5Cited by
8References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 6, 2002 |
| Grant date | Sep 21, 2004 |
| Priority date | — |
| Expiry date | Dec 21, 2022 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09D11/40
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
An ink for ink-jet recording comprises a pigment, an anionic surfactant, and a cationic surfactant. The cationic surfactant interacts with the anionic surfactant which does not contribute to the dispersion of the pigment in the ink to avoid any excessive permeation of the anionic surfactant into paper. It is possible to obtain a sharp image in which the printing concentration is high and the feathering and the bleeding are scarcely caused.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.