Anti-bacterial and anti-UV properties of silk treated with nano-super (AB) microcrystalline dispersion

The main aim of this paper is to research the effect of nano-super (AB) microcrystalline dispersion,a kind of novel functional finishing reagent,on the anti-bacterial and anti-UV properties of silk.Silk fabric was treated with self-prepared nano-super (AB) microcrystalline dispersion through dipping-padding-baking process to render it with excellent and durable anti-UV and anti-bacterial functions.SEM and XRD were used to characterize the microstructure of the surface of silk fabrics before and after treatment.The results indicates that small and uniform nano-particles with size of 10 nm were observed on the surface of the finished silk fabric.XRD analysis shows that nano-particle on the surface of silk is standard wurtzite zinc oxide.The ultraviolet protection factor(UPF) of the treated silk fabric attains 50 + when the mass concentration of nano-super(AB) is 16 g /L.The antibacterial rate reaches more than 99% for Staphylococcus and Bacillus coli.The standard washing (soaping) test shows that the anti-UV property increases with the increase of washing times,and the anti-bacterial property is not affected.