| In this paper, it was reviewed that development tendency of anti-crease finishing agents on natural fabrics at home and abroad. Preparation, finishing condition and effect of environmental fabric finishing agent of silk fibroin on natural fibers are studied emphatically.The silk fibroin can be swelled firstly by CaCl2 , then decomposed by acid or enzyme. The lower molecular weight of silk fibroin after being hydrolyzed can be used with soluble cross - linked agent PU to cotton fabrics and with organic silicon to silk fabrics in order to increase anti-crease property.Comparing the three methods of preparing silk fibroin finishing agent, we concluded that the method with acid is the best. Cotton and silk treated with this kind of finishing agent were analyzed .The results showed.that the treated fabrics with this new agent had better crease resistance than that of the fabrics treated with conventional agents, in addition, showed better strength, softness moisture absorption and so on.Fibroin finishing agent is a kind of finishing agent without pollution and can be decomposed by microorganism. The assistant agents used in this finishing process can also be decomposed by microorganism in some degree. we can conclude that the Fibroin finishing agent is the most competitive agent in the 21 century.
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