Metal complexes of azo dyes and their uses in ink-jet printing

摘要

A compound of Formula (1) or a salt thereof: wherein: X and Y are each independently a substituent; G is optionally substituted C_1-12-alkylene; M is a metal n is 0 to 6; p is 0 to 3; R¹ is optionally substituted C_1-8-alkyl, optionally substituted C_5-8 cycloalkyl, optionally substituted aryl or an optionally substituted heterocycle; and R² is H, or C_1-4-alkyl; provided that R¹ is free from carboxy groups. Also an ink-jet printing ink, an ink-jet printing process, a printed material and an ink jet printer cartridge.