| 摘要 |
<p>A mono-azo compound of Formula (1) or a salt thereof wherein: A is N, C-Cl, C-CN or C-NO2; R1 is H or optionally substituted alkyl; G is H, sulpho, carboxy, optionally substituted alkyl, optionally substituted alkoxy, -CF¿3?, halo or -PO3H2; L?1 and L2¿ each independently is -SR?2, -OR3 or -NR4R5; R2, R3, R4 and R5¿ each independently is H, optionally substituted alkyl or optionally substituted aryl; or R?4 and R5¿ together with the nitrogen to which they are attached form an optionally substituted five or six membered ring; provided that L?1 and L2¿ are free from carboxy, sulpho and -PO¿3?H2 groups. Also claimed are inks, an ink jet printing process using the inks, a substrate printed with the inks and an ink jet printer cartridge containing the inks.</p> |
