| 摘要 |
A compound of Formula (1) or a salt thereof: A-N═N-D-N═N—B—N═N-A/ Formula (1) wherein A is an optionally substituted aryl, heteroaryl, non-aromatic heterocyclic or alkenyl group; D is an optionally substituted, optionally metallized 1,8-dihydroxynaphthalene group; B is an optionally substituted organic linking group; and A/ is an optionally substituted pyrazolyl group which does not have an aromatic group as a substituent directly attached to either of the nitrogen atoms of the pyrazolyl ring. Also provided are compositions, inks, ink sets, substrates and cartridges all containing the compound or salt and printing processes using the compound or salt. The compounds and salts are especially useful for ink-jet printing. |
