织物含水率对其抗紫外性能的影响

Effect of Moisture Content of Fabrics on Anti-ultraviolet Capability

针对织物带有汗液时可能对其抗紫外线性能产生影响,采用模拟汗液对不同类型的织物进行处理,通过测试不同类型织物在不同含水率条件下的抗紫外性能,分析织物含水率对其抗紫外性能的影响。研究结果表明:随着织物含水率的增加,棉、涤纶、锦纶和腈纶的紫外线透过率均逐渐增加,羊毛的TUVA逐渐升高,而TUVB有所降低,蚕丝织物的TUVA和TUVB在290～320 nm波段上逐渐升高,而TUVB在280～290 nm波段上逐渐降低。棉、涤纶、锦纶、腈纶、羊毛、蚕丝织物的抗紫外性能随着其含水率的增加而降低,这是因为湿的织物在纱线和纤维之间的水分减弱了紫外线的散射效应。

As fabrics with sweat might influence the anti-uhraviolet capability, this reseaIvh processes different types of fabrics with simulated sweat and analyzes the influence of moisture content of fabrics on the anti-ultraviolet capability by testing anti-ultraviolet capability of different types of fabrics with different moisture contents. The research result shows that, with the increase of moisture content, the ultraviolet transmission rate of cotton, dacron, nylon and acrylon gradually increases, TuvA of wool gradually increases, TUVB reduces, TuvA and TUVB of silk fabrics gradually increases between 290 and 320 nm and TUVB gradually decreases between 280 and 290 nm. The anti- ultraviolet capability of cotton, dacron, nylon, acrylon, cotton and silk fabrics reduces with the increase of moisture content, because the moisture of wet fabrics between yarn and fiber weakens the scattering effect of ultraviolet.