Ink composition and ink jet recording method using the same
US5616174A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 4, 1995 |
| Grant date | Apr 1, 1997 |
| Priority date | — |
| Expiry date | Dec 4, 2015 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09D11/328
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
An ink composition is provided which enables high-quality recording on plain paper and can record an image having excellent water resistance. The ink composition comprises a dye represented by the following formula (I): ##STR1## wherein M represents an unsubstituted or substituted ammonium, R.sup.1 represents COOM, R.sup.2 represents --P(=O)n--(OM).sub.2, where n is 0 or 1, R.sup.3 represents SO.sub.3 M, R.sup.4 and R.sup.5 independently represent H, an alkyl group, or an alkoxyl group, R.sup.6 represents H, a phenyl group which may be substituted, an alkylcarbonyl group, or an alkyl group which may be substituted with a hydroxyl or alkoxyl group, and m is 0 or 1.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.