Abstract: The morphological structure and composition of aloe fiber were analyzed through SEM and IR.Dyeing properties and dynamics of direct dyes to aloe fiber were researched, compared with cotton. The results showed that the structure of aloe fiber was similar to that of cotton fiber; aloe fiber contained active ingredients, such as aloe polysaccharide molecules and anthraquinone compounds; the dyeing percentage could reach more than 90% and the initial dyeing rate was around 70%, which were better than that of cotton; dye adsorption dynamics conformed to level 2 dynamic model and the kinetic parameters were obtained from the model.

Key words: aloe fiber; direct dye; cotton fiber; dyeing properties