Ink compositions containing disazo dyes

Abstract

An ink composition comprising: (i) a dye of Formula (1) or a salt thereof: ##STR1## wherein: A is optionally substituted phenylene; B and E each independently is optionally substituted phenylene or optionally substituted naphthylene; D is a coupling component; each R.sup.1 independently is H or optionally substituted alkyl; X is a labile or non-labile atom or group; 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 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 (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).

Dependencies are inferred from the claim text.