Pigment dispersion, aqueous pigment liquid dispersion, and ink-jet recording ink
US8044116B2 · kind B2 · utility
11Cited by
3References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 23, 2007 |
| Grant date | Oct 25, 2011 |
| Priority date | — |
| Expiry date | Jul 10, 2028 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09D17/003
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A pigment dispersion of the present invention includes a bisacetoacetarylide pigment (a); a styrene-acrylic acid-based copolymer (b); a basic compound (c); and a wetting agent (d), wherein the wetting agent (d) includes at least one diol compound (e), the diol compound (e) is selected from the group consisting of dipropylene glycol, 2-ethyl-1,3-hexanediol, and 1,2-hexanediolthe mass ratio (e)/(a) of the diol compound (e) and the bisacetoacetarylide pigment (a) is within a range from 3/100 to 8/100.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.