申请人:——
公开号:US20020128349A1
公开(公告)日:2002-09-12
A liquid ink comprises (a) a carrier liquid having a Kauri-Butanol number less than 30; (b) a graft copolymer comprising a (co)polymeric steric stabilizer covalently bonded to a thermoplastic (co)polymeric core that is insoluble in the carrier liquid; and (c) a colorant, wherein the steric stabilizer comprises units derived from 3,3,5-trimethylcyclohexyl methacrylate, and the thermoplastic (co)polymeric core comprising units derived from at least a polymerizable monomer selected from the group consisting of (meth)acrylates having aliphatic amino radicals, nitrogen-containing heterocyclic vinyl monomers, N-vinyl substituted ring-like amide monomers, aromatic substituted ethylene monomers containing amino radicals, and nitrogen-containing vinylether monomers. The organosol provides improved liquid electrophotographic and electrographic ink compositions with improved dispersion stability, chargeability, and blocking resistance so that improved print quality or ink transfer performance are obtained.
一种液体墨水包括:(a) Kauri-Butanol 数小于 30 的载液;(b) 接枝共聚物,包括与不溶于载液的热塑性(共)聚合物芯共价键合的(共)聚合物立体稳定剂;(c) 着色剂,其中立体稳定剂包括从甲基丙烯酸 3,3,5-三甲基环己基酯衍生的单元,热塑性(共)聚合物芯包括从至少一种可聚合单体衍生的单元,该可聚合单体选自由以下组群:具有脂肪族氨基基的(甲基)丙烯酸酯、含氮杂环乙烯基单体、N-乙烯基取代的环状酰胺单体、含有氨基基的芳香族取代的乙烯单体和含氮乙烯基醚单体。该有机溶胶可提供更好的液态电子照相和电子印刷油墨组合物,具有更好的分散稳定性、荷电性和抗阻塞性,从而提高印刷质量或油墨转移性能。