Ink for Ink-Jet Recording
US7297198B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 15, 2007 |
| Grant date | Nov 20, 2007 |
| Priority date | — |
| Expiry date | Feb 15, 2027 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09D11/38
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
An ink for ink-jet recording is provided in which a copper phthalocyanine dye is used and a thiazole-based compound is also used. In this ink, the mildew resistant properties are not impaired. Furthermore, the ink exhibits excellent ozone resistance, and the formation of a precipitate is prevented in the ink although the thiazole-based compound is used. In the ink for ink-jet recording containing the copper phthalocyanine dye and the thiazole-based compound, the used copper phthalocyanine dye has a specific structure, and about 1 mol % to about 20 mol % of the total counter ions of the dye are ammonium ions or organic ammonium ions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.