Pigment ink, ink jet recording method, ink cartridge, recording unit and ink jet recording apparatus
US7918928B2 · kind B2 · utility
14Cited by
134References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 5, 2008 |
| Grant date | Apr 5, 2011 |
| Priority date | — |
| Expiry date | Aug 3, 2028 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09D11/322
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A pigment ink is provided which has good ink reliability and storage stability and can achieve superior scratch resistance of images at such a level that coloring materials are hardly scraped off even when images are scratched with finger nails under application of such strong pressure as to scratch a recording medium at its non-recorded areas. The pigment ink contains a pigment, a modified siloxane compound having a specific structure, and a polymer whose acid value and hydrogen bond parameter (δh) are specified.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.