Inkjet recording ink, ink cartridge, inkjet recording method, inkjet recording apparatus, and ink recorded matter
US8197049B2 · kind B2 · utility
5Cited by
6References
10Claims
0Family size
Assignee
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Key dates
| Filing date | Dec 18, 2008 |
| Grant date | Jun 12, 2012 |
| Priority date | — |
| Expiry date | May 31, 2029 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09D11/324
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The present invention provides an inkjet recording ink containing at least a pigment dispersion liquid A containing at least a first carbon black, a dispersant, and water, and a self-dispersible pigment dispersion liquid B which contains a second carbon black having a surface functional group, wherein a mass ratio (Ac:Bc) of the amount of the first carbon black (Ac) in the pigment dispersion liquid A to the amount of the second carbon black (Bc) having a surface functional group in the self-dispersible pigment dispersion liquid B is 98:2 to 50:50.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.