An aqueous dispersion of polymer particles of a water-insoluble vinyl polymer containing a hydrophobic dye, wherein the water-insoluble vinyl polymer is obtainable by polymerizing a monomer composition comprising an alicyclic (meth)acrylate, a salt-forming group-containing monomer, and a monomer copolymerizable with the alicyclic (meth)acrylate and the salt-forming group-containing monomer; and an ink comprising the aqueous dispersion. The aqueous dispersion is excellent in, for instance, storage stability, and the ink is excellent in, for instance, printing reliability, solvent resistance, water resistance and character quality.
一种含有疏
水性
染料的
水不溶性
乙烯基聚合物的聚合物颗粒的
水性分散体,其中
水不溶性
乙烯基聚合物可通过聚合单体组合物获得,该单体组合物包括脂环族(甲基)
丙烯酸酯、含盐基团单体以及可与脂环族(甲基)
丙烯酸酯和含盐基团单体共聚的单体;以及一种含有该
水性分散体的油墨。
水性分散体具有出色的储存稳定性等优点,而油墨则具有出色的印刷可靠性、耐溶剂性、耐
水性和字符质量等优点。