| 摘要 |
A composition comprising (a) a dianthraquinonyl pigment of formula I <IMAGE> (I) and (b) a compound of formula II <IMAGE> (II) wherein X(+) is H(+) or a group of formula Mn(+)/n or N(+)(R)(R1)(R2)(R3), Mn(+) is a monovalent metal cation of valency n, n is 1, 2 or 3, each of R, R1, R2 and R3 independently is hydrogen, C1-C18alkyl, C5-C6cycloalkyl, phenyl or phenyl which is substituted by C1-C18alkyl, or R2 and R3, together with the linking nitrogen atom, are a pyrrolidine, imidazolidine, piperidine, piperazine or morpholine radical, or R1, R2 and R3, together with the linking nitrogen atom, are a pyrrole, pyridine, picoline, pyrazine, quinoline or isoquinoline radical, r and t are each independently of the other 0 or 1, with the proviso that at least one of r and t must be 1. Especially when used in varnishes pigment mixtures of this kind are distinguished in particular by enhanced color strength and high gloss and, most particularly, by improved rheology.
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