Preparation of UV resistant polyester knitted fabric with nano TiO2 loaded by high temperature and high pressure dyeing method
In order to enhance the UV protection performance of ordinary polyester fabrics,high temperature and high pressure dyeing method was used to dye polyester fabrics with nano TiO2 loading,and the effects of the UPF value,K/S value,and color fastness to washing of polyester fabrics were discussed with three colors of disperse dyes and nano TiO2 dosage as well as the one-bath and two-bath methods.The results show that the UPF value of the fabrics increased from 14.76 to 50+when 10%(owf)TiO2 was loaded on white polyester knitted fabrics.The UV protection ability of the three colors is ranked as blue＞red＞yellow.When dispersed yellow 23 and nano TiO2 were dyed and loaded on polyester knitted fabrics,the UPF value of one-bath dyed and loaded fabrics was increased to 37.13,and two-bath dyed and loaded fabrics can increase the UPF value of the fabrics to more than 40,and the UPF value of two-bath dyed and loaded fabrics still remained at more than 40 after the test of color fastness to washing,and the ratings of the color fastness to washing were all class 4.
polyester knitted fabricnano titanium dioxidedisperse dyehigh temperature and high-pressure dyeingUV resistant property
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