Water-based ink for ink-jet recording, ink cartridge and ink-jet recording apparatus
US8021470B2 · kind B2 · utility
1Cited by
13References
9Claims
0Family size
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Key dates
| Filing date | Dec 23, 2008 |
| Grant date | Sep 20, 2011 |
| Priority date | — |
| Expiry date | Nov 3, 2029 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09D11/328
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A water-based ink includes a dye (1) represented by the general formula (1); a dye (2) at least one dye selected from the group consisting of a dye having free acid that is represented by the general formula (2-1), C. I. Acid Red 52 and 289; DPP; and a surfactant represented by the general formula (3). The dyes, DPP, and the surfactant are blended so as to satisfy the conditions (A) to (D).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.