To provide a pigment composition and colorant composition which have superior disperse ability and provide a coated film having high contrast when it is used for a color filter is an object of the invention. A pigment composition for color filter obtainable by dissolving C.I. Pigment Red 177 and a pigment derivative having specific formula in sulfuric acid, subsequently mixing the solution with water to induce precipitation and removing acidic components, and a colored composition for a color filter in which the pigment composition is dispersed in a pigment carrier of a transparent resin, the derivatives thereof, or the mixture thereof.
本发明的目的是提供一种
颜料组合物和
着色剂组合物,这种组合物和
着色剂组合物在用于滤色片时具有优异的分散能力和高对比度的涂膜。通过将 C.I.
颜料红 177 和具有特定分子式的
颜料衍
生物溶解于
硫酸中,然后将溶液与
水混合以诱导沉淀并去除酸性成分,可获得一种用于彩色滤光片的
颜料组合物,以及一种用于彩色滤光片的
着色剂组合物,其中
颜料组合物分散在透明
树脂、其衍
生物或其混合物的
颜料载体中。