Research development of supercritical fluid dyeing and finishing technology

The aim of the paper is to provide an up-to-date overview of supercritical carbon dioxide dyeing and finishing technology,including supercritical fluid dyeing and finishing apparatus,supercritical fluid dyeing and finishing procedures. Based on structural diversities of fibers,the development of dyeing reactors in supercritical fluid apparatus are summarized. Finishing process of fibers in supercritical fluid is also presented. Meanwhile,it is pointed out that dyeing of special fibers in supercritical fluid should be conducted. Supercritical fluid dyeing and finishing technology of natural fibers can be promoted through multidisciplinary collaboration. In addition, it is predicted that dyeing and finishing technology of multicomponent fibers in supercritical fluid is a new research field.