WATER-INSOLUBLE COLORANT DISPERSION AND PRODUCTION METHOD THEREOF, AND RECORDING LIQUID, INK SET, PRINTED ARTICLE, IMAGE-FORMING METHOD AND IMAGE-FORMING APPARATUS USING THE SAME
申请人:SANO Satoshi
公开号:US20090263635A1
公开(公告)日:2009-10-22
A method of producing a water-insoluble colorant dispersion, having the steps of:
providing a solution of a water-insoluble colorant dissolved in an aprotic water-soluble organic solvent in the presence of an alkali,
providing an aqueous medium of a polymer compound dissolved therein, which polymer compound has at least one acid group selected from the group consisting of a carboxylic acid group, a sulfonic acid group, a hydroxyl group, and a phosphoric acid group, as its hydrophilic group, and
bringing the solution and the aqueous medium in contact with each other, to form fine particles of the water-insoluble colorant in a medium including water, thereby obtaining a dispersion including the fine particles dispersed therein.
一种生产水不溶性颜料分散液的方法,包括以下步骤:在碱的存在下提供一个无水溶性颜料溶解于无水溶性有机溶剂中的溶液;提供一个在其中溶解有聚合物化合物的水介质,该聚合物化合物具有至少一种酸性基团,所述酸性基团选自羧酸基团、磺酸基团、羟基和磷酸基团,作为其亲水基团;并将溶液和水介质接触,以在包括水的介质中形成细小颗粒的水不溶性颜料,从而获得包括分散在其中的细小颗粒的分散液。