PREPARATION METHOD FOR AND APPLICATION OF DISPERSED EMERALD BLUE DYE

摘要

Disclosed by the present invention is a method for preparing a dispersed emerald blue dye, comprising the following steps: 1. blending a dye monomer or a finished dye and an additive, a blended mixed dye comprising a dye monomer A represented by formula (I) in a mass fraction of 0.1-75%, and a dye monomer B represented by formula (II) in a mass fraction of 0.1-75%, the remainder being the additive; (I), (II); 2. adding an appropriate amount of water and grinding until evenly dispersed; 3. spray drying. A dye prepared by using the described method has the advantages of a high dye uptake rate, good washing fastness, excellent fastness, little heat-resistant migration, high strength and a relatively cheap price.