摘要 |
A process for printing an image on a substrate comprising applying thereto by means of an ink jet printer an ink containing a metal chelate compound of the Formula (1) and salts thereof: wherein: one of A and B is OH and the other is an azotriazole group; each W independently is a carboxy or carbonamido group; each X independently is a substituent other than H, sulphonamido, carboxy, sulpho and carbonamido; J is a sulphonamido group; M is a metal or boron; a, p, q and n are each independently 0, 1, 2, 3 or 4; and (p+q+a+n) is 0, 1, 2, 3 or 4. Also claimed are compounds of Formula (1), compositions and inks containing a compound of Formula (1) and an ink jet printer cartridge containing the ink.
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