Abstract: The flame retardant for wool fabric, in particular the utilization and development of organic phosphorus flame retardant, has been now attracted great attention all over the world. The research progress of phosphate ester flame retardant, phosphonote ester flame retardant and phosphorus heterocycles flame retardant were systematically reviewed in this article, and the synthesis methods and flame retardant characteristics of some novel flame retardants were introduced. Furthermore, their application study and development trend were also reviewed and forecasted respectively.

Key words: wool fabric; organic phosphorus; flame retardant; flame resistance finishing