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Improving the Ultraviolet Protection Factor of Cotton Fabric

机译：改善棉织物的紫外线防护因子

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摘要

The effects of cover factor, reactive dyes in pale and deep hues, double layers of fabric, and ultraviolet (UV) absorption on the UV Protection Factor (UPF) of a lightweight, bleached cotton fabric were investigated. UV transmission and reflectance were measured and the UV absorbency of the dyes was calculated. The undyed fabric provided low protection against UV rays in single and double layers. Application of monofluoro-s-triazine reactive dyes (particularly the deep red dye) increased the UPF. The effect of the UV absorber was most pronounced on the blank-dyed fabric. A double-layer of fabric with the blank-dyed fabric facing the source of UV radiation and the dyed layer facing the skin exhibits very good to excellent UPF.
机译：研究了覆盖因子，浅色和深色的活性染料，织物的双层以及紫外线（UV）的吸收对轻质漂白棉织物的紫外线保护因子（UPF）的影响。测量紫外线的透射率和反射率，并计算出染料的紫外线吸收率。未染色的织物在单层和双层中对紫外线的防护作用很低。单氟-s-三嗪活性染料（特别是深红色染料）的应用增加了UPF。紫外线吸收剂对坯染织物的影响最为明显。双层织物的空白染色织物面向紫外线辐射源，而染色层面向皮肤，则呈现出非常好的UPF。

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