Abstract:

Nano-ZnO was modified by titanate coupling agent and then used as UV resistance finishes for improving the UV resistance property of silk fabrics. Then using Lambda 900 UV spectrophotometer to measure the UV transmissions in the wavelength range from 280 nm to 400 nm，The UV transmittance and UPF values of the finished fabrics were used to evaluate UV resistance. Moreover orthogonal experiments were designed to determine the optimum process. The results showed that the optimum finishing conditions were: nano-ZnO concentration has remarkable effect on the UPF value, followed by coupling agent concentration and ultrasonic treatment time; .nano-ZnO concentration 18 g/L, coupling agent concentration 12 g/L, and ultrasonic treatment time 20 min; The average UV transmittance reduced from 27.09 % to 2.46 %, the UPF value increased from 2.624 to 35.428; the treated silk fabric had good laundering durability.