Patent ID: 7022171

Claim:
A process for coloration of a substrate comprising applying thereto by means of an ink-jet printer an ink composition comprising a compound of Formula (1) or salt thereof: wherein: M is 2H, Si, a metal, an oxymetal group, a hydroxymetal group or a halometal group; Pc is a phthalocyanine nucleus of Formula (2); each R 1 and R 2 independently are H, C 1-4 alkyl or C 1-4 hydroxyalkyl; R 3 is phenyl carrying 1 or 2 sulpho substituents or phenyl carrying at least 1 carboxy or 1 phosphate substituent and having further optional substituents; x, y and z are all greater than 0 and the sum of (x+y+z) is 2 to 5.