Ink and toner compositions containing a mixture of bis-azo dyes

Abstract

An ink composition comprising a medium comprising at least one of a low melting point solid, an organic solvent and a mixture of water and one or more water-soluble organic solvent(s); and a mixture of a first, second, third and fourth dye, each of which is of Formula (1) or a salt thereof: ##STR1## wherein: X is a labile or non labile atom or group; A and B are each independently an optionally substituted phenylene group; one or R.sup.1 and R.sup.2 is H and the other is sulpho; one of R.sup.3 and R.sup.4 is H and the other is sulpho; R.sup.5 and R.sup.6 are each independently C.sub.1-4 -alkyl. Also claimed is an ink jet printing process using the inks, a process for ink jet printing textile materials using the inks and a toner containing a mixture of a first, second, third and fourth dyes of the Formula (1).

Dependencies are inferred from the claim text.