申请人:Toyo Ink Mfg. Co. Ltd.
公开号:EP2196505A1
公开(公告)日:2010-06-16
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。