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##

 
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