| 摘要 |
The invention relates to an ink-jet ink, an ink-jet recording material and an ink-jet system containing at least one hydroquinone of general formula (I) wherein Q is selected from the residues: -COO<->M<+>, wherein M<+>, is H<+>, a monovalent, divalent and trivalent metal cation or a group N<+>(R21)(R22)(R23)(R24), wherein R21, R22, R23 and R24 independently of one another are H, unsubstituted C1-C4alkyl or C1-C4alkyl substituted by 1 to 3 OH or C1-C4alkyl interrupted by O; allyl, cyclopentyl, cyclohexyl, phenyl or tolyl, or R21 and R22 together with the nitrogen atom to which they are each bonded, mya form an unsubstituted 5- or 6-membered heterocyclic ring or a 5- or 6-membered heterocyclic ring substituted by one or two C1-C4alkyl groups; -SO3<->M<+>, wherein M<+> is as defined above; -P(O)(O<->M<+>)2, wherein M<+> is as defined above; -N<+>(R21)(R22)(R23)X<->, wherein R21, R22 and R23 are as defined above and X<-> is an inorganic or organic anion; -CO-N<+>(R21)(R22)(R23)X<->, wherein X<->, R21 and R23 are as defined above; -SO2N<+>(R21)(R22)(R23)X<->, wherein X<->, R21 and R23 are as defined above; K is 1 or 2; and n is an integer from 1 to 10.
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