Ink compositions containing disazo dyes
US5820661A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 2, 1997 |
| Grant date | Oct 13, 1998 |
| Priority date | — |
| Expiry date | Apr 2, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/24802
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
An ink composition comprising: PA1 (i) a dye of Formula (1) or a salt thereof: ##STR1## wherein: A is optionally substituted phenylene; PA2 B and E each independently is optionally substituted phenylene or optionally substituted naphthylene; PA2 D is a coupling component; PA2 each R.sup.1 independently is H or optionally substituted alkyl; PA2 X is a labile or non-labile atom or group; PA2 each Z independently is --OR.sup.3, --SR.sup.3, --NR.sup.4 R.sup.5 or --Y--SO.sub.3 H in which Y is O or S; and PA2 R.sup.3, R.sup.4 and R.sup.5 each independently is H, optionally substituted alkyl, optionally substituted alkenyl, cycloalkyl, optionally substituted aralkyl, optionally substituted aryl or R.sup.4 or R.sup.5 together with the nitrogen atom to which they are attached form a 5 or 6 membered ring; and PA1 (ii) a medium comprising a low melting point solid, an organic solvent, or a mixture of water and one or more water-soluble organic solvent(s). Also claimed is a process for ink jet printing using the inks, a process for ink jet printing of textiles using the inks and a toner containing a dye with at least one group of Formula (1).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.