Aqueous pigment dispersion water-base ink composition and recording method using the ink composition
US6488753B1 · kind B1 · utility
24Cited by
5References
18Claims
0Family size
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Key dates
| Filing date | Mar 9, 2000 |
| Grant date | Dec 3, 2002 |
| Priority date | — |
| Expiry date | Mar 9, 2020 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09D17/005
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Disclosed are an aqueous pigment dispersion and an ink composition which can realize high print density. The aqueous pigment dispersion comprises at least water and a surface-modified carbon black, the surface-modified carbon black being dispersible and/or dissolvable in water without any dispersant and having a hydrophilic functional group content/specific surface area value of 5 to 30 &mgr;mol/m2.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.