Patent Number: 6,251,174

Title: Ink composition containing at least two azo dyes

Abstract: A composition comprising: (i) a dye of Formula (1) or a salt thereof: ##STR1## wherein n is 0 or 1; and (ii) at least one dye selected from a dye of the Formula (2), (3), (4), (5), (6), (7) and salts thereof as defined in the description. Also claimed are the above compositions further comprising a water-soluble yellow dye and optionally a water-soluble cyan dye; inks containing the compositions; an ink jet printing process using the inks; and a substrate printed with the inks.

Inventors: Lavery; Aidan Joseph (High Wycombe, GB), Meyers; John Parker (New Castle, DE)

Assignee: Avecia Limited

International Classification: C09B 67/00 (20060101); C09D 11/00 (20060101); C09B 67/22 (20060101); C09D 011/02 ()

Expiration Date: 06/26/2018