Aqueous ink, ink jet recording method, ink cartridge, recording unit, and ink jet recording apparatus
US7005461B2 · kind B2 · utility
50Cited by
19References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 3, 2003 |
| Grant date | Feb 28, 2006 |
| Priority date | — |
| Expiry date | Apr 1, 2023 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09D11/322
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The present invention relates to an aqueous ink, particularly an aqueous ink suitable for ink jet recording. The ink is an aqueous ink comprising a modified pigment having organic groups chemically attached to the surface of a particle of the pigment and an aqueous medium which is a dispersant of the pigment, wherein the above-described organic group includes a reaction product of a functional group chemically attached to the surface of the pigment directly or via another atomic group with a copolymer of an ionic monomer and a hydrophobic monomer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.