Ink, ink container, ink set, ink jet printing apparatus, and ink jet printing method
US6471757B1 · kind B1 · utility
32Cited by
14References
48Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 26, 1998 |
| Grant date | Oct 29, 2002 |
| Priority date | — |
| Expiry date | Oct 26, 2018 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09D11/40
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
An ink of the present invention has a dye and a pigment. The pigment is a self-dispersant type pigment and an anionic dye in which at least one anionic group is bound on a surface of the pigment directly or through another atomic group and having a Ka value of less than 1 ml·m−2·msec−½ according to a Bristow method. An image having an excellent image quality is formed by using such an ink in the process of ink jet recording.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.