Composition and application of disperse brilliant blue dye

The invention relates to a disperse brilliant blue dye mixture which is formed by mixing two parts, namely dye and auxiliaries, the dye comprises a component A and a component B, the general formula of a compound in the mixed dye of the component A and the component B contains ether bonds, the mixed dye has good affinity with polyester fibers, good dyeing leveling property and high lifting power, and the ether bonds are relatively stable, are not easy to hydrolyze, are particularly stable under alkaline conditions, can be dyed under the alkaline conditions, and have good color fastness. The disperse brilliant blue dye composition solves the problem of poor alkali resistance of disperse blue 284 products, keeps the obvious advantages of bright color, good leveling property and high lifting power, is low in price and economic and environment-friendly in production process, and is rare and good in performance. 一种分散艳蓝染料混合物，由染料和助剂两部分混合组成；染料包括组份A和组份B，组份A和组份B的混合染料中化合物通式中均含有醚健，与涤纶纤维的亲和性好，染色匀染性好，提升力高，并且醚健比较稳定，不容易水解，特别