摘要 |
The present invention relates to an ink-jet ink, an ink-jet recording materi al or an ink-jet system containing at least one water-soluble hindered amine compounds of the general formula (I) or (II): wherein G1 and G2 are independently alkyl of (1) to (4) carbon atoms or are together pentamethylen e; Z1 and Z2 are each methyl, or Z1 and Z2 together form an unsubstituted linki ng moiety or a linking moiety substituted by one or more groups selected from a n ester, ether, hydroxy, oxo, cyanohydrin, amide, amino, carboxy or an urethan e group; E is oxyl; X is an inorganic or organic anion; and wherein the local charge of cations h is equal to the total charge of anions j. |