申请人:Kao Corporation
公开号:EP1245652A1
公开(公告)日:2002-10-02
An aqueous inkjet printing ink with excellent water resistance, wherein scorching onto a printer head scarcely occurs, the amount of a hydrophobic dye contained in an aqueous dispersion of a vinyl polymer can be increased, and sharp printed letters having deep color can be provided. The aqueous ink product for inkjet printing comprises a dispersion of a vinyl polymer obtained by copolymerizing one or more selected from a silicone macromer, an acrylamide. monomer and a methacrylamide monomer (not having a salt-forming group), or a styrene macromer of a styrene homopolymer or a styrene copolymer having a polymerizable functional group at one terminal end, a polymerizable unsaturated monomer having the salt-forming group, and a monomer capable of polymerizing with these monomers in the presence of a radical polymerization initiator, a hydrophobic dye being contained in the dispersion.
一种水性喷墨打印墨水具有极佳的耐水性,在这种墨水中,打印头几乎不会出现烧焦现象,乙烯基聚合物水性分散体中所含的疏水性染料的用量可以增加,并且可以提供具有深色的清晰打印字。用于喷墨打印的水性墨水产品包括乙烯基聚合物的分散体,该分散体通过共聚硅酮大单体、丙烯酰胺单体和甲基丙烯酰胺单体中的一种或多种单体而获得。单体和甲基丙烯酰胺单体(不具有成盐基团),或苯乙烯均聚物的苯乙烯大单体或一端具有可聚合官能团的苯乙烯共聚物,具有成盐基团的可聚合不饱和单体,以及在自由基聚合引发剂存在下能与这些单体聚合的单体,分散体中含有疏水性染料。