VERFAHREN, VERBINDUNG, TINTE UND VERWENDUNG

摘要

A process for printing an image on a substrate comprising applying to the substrate an ink comprising a medium and a mono azo compound of Formula (1) or a salt thereof: wherein: A and X are independently optionally substituted aryl or heteroaryl; B is independently optionally substituted arylene or heteroarylene, in either case comprising a phenylene ring which is attached to the—N═N—and—NRa—groups in the compound of Formula (1) in the para positions; Ra and Rb are independently H, optionally substituted alkyl or optionally substituted aryl; the compound of Formula (1) or a salt thereof is a water-soluble dye; and the ink is applied to the substrate by means of an ink jet printer.