An aqueous dispersion containing a water-insoluble solid, wherein the solid consists of fine particles surfaces of which are coated with a resin having a polyether structure, and a coated amount of the resin is 15 to 1,000 parts by weight per 100 parts of the solid. This aqueous dispersion has improved dispersion stability for various solids such as pigments, dyes, and so on, causes no problems such as precipitation of the solid particles during the storage of the dispersion, and thus can be stably stored for a long time. The present invention can provide an aqueous dispersion used as an ink-jet printing ink, which has good high speed printing properties besides the above properties.
一种含有不溶于
水的固体的
水性分散体,其中固体由细小颗粒组成,颗粒表面涂有聚醚结构的
树脂,每 100 份固体中
树脂的涂布量为 15 至 1000 份(按重量计)。这种
水分散液对
颜料、
染料等各种固体具有更好的分散稳定性,在分散液的储存过程中不会出现固体颗粒沉淀等问题,因此可以长期稳定地储存。本发明可以提供一种用作喷墨打印墨
水的
水性分散体,除了上述特性外,它还具有良好的高速打印特性。