Preparation method of phthalocyanine blue pigment

The invention belongs to the technical field of pigment processing, and particularly relates to a preparation method of a phthalocyanine blue pigment. The method comprises the steps that crude copperphthalocyanine synthesized by a grinding aid and solvent method is ground to prepare homogeneous copper phthalocyanine; after homogeneous copper phthalocyanine is subjected to solvent steaming, dispersion coating, resin dispersion and extrusion granulation, the phthalocyanine blue pigment is prepared; the preparation method of the phthalocyanine blue pigment has the advantages that the proceduresare fewer, the energy consumption is low, the pollution is less, and the pigment is good in property and convenient to use. 本发明属于颜料加工技术领域，具体涉及种酞菁蓝颜料的制备方法；包括对助磨剂和溶剂法合成出的粗品铜酞菁进行研磨，制得均相铜酞菁；经溶剂蒸煮、分散包覆、树脂分散、挤出造粒处理后，制得酞菁蓝颜料；本发明提供的酞菁蓝颜料的制备方法工序少、能耗低、污染少、颜料性质好、使用方便。