The present invention relates to an ink-jet ink, an ink-jet recording material
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 pentamethylene;
Z1 and Z2 are each methyl, or Z1 and Z
##CHR1##
2
?together form an unsubstituted linking moiety or a linking moiety substituted
by one or more groups selected from an ester, ether, hydroxy, oxo, cyanohydrin,
amide, amino, carboxy or an urethane 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.
##STR1##
