Ink composition for ink jet recording
US5647897A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 31, 1995 |
| Grant date | Jul 15, 1997 |
| Priority date | — |
| Expiry date | Oct 31, 2015 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C245/10
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
An ink composition for ink jet recording is provided which can satisfy property requirements of quality of print, drying property of print, clogging resistance, water resistance, storage stability, and nonattacking on members constituting an ink passage, such as a printing head. The ink composition for ink jet recording comprises a dye represented by the following formula (I), glycerin, pyrrolidone, a monohydric lower alcohol, a tri(hydroxyalkyl)amine, and water: ##STR1## wherein R.sup.1 represents phenyl or naphthyl substituted by a group selected from hydroxyl, --NH.sub.2, --SO.sub.3 M and --COOM, R.sup.2 represents carboxyalkyl, alkoxyalkyl, phenyl, or alkanoyl, R.sup.3, R.sup.4, and R.sup.5 represent hydrogen or --SO.sub.3 M.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.