旧防晒衣的防晒性能影响因素研究

Study on Factors Influencing Sunscreen Performance of Used Sun-protective Clothing

为探讨旧防晒衣的防晒性能影响因素,通过线上征集的方式,筛选了20款比较知名品牌的旧防晒衣作为研究样品。采用纺织品防紫外线测试仪进行防晒指标检测,分析了旧防晒衣的使用时长、洗涤次数、面料表面完整程度、面料成分、颜色对紫外线防护性能的影响。结果表明:使用了3年的5款旧防晒衣,基本都达不到有效防晒的标准要求;使用了2年的旧防晒衣,不达标率60%;使用了1年的防晒衣,不达标率10%;使用了2年以内的旧防晒衣,建议使用时每月的清洗次数不要多于2次;表面完整程度对保证面料抗紫外线性能影响较大;对于使用1年的旧防晒衣,面料成分为100%聚酯纤维的抗紫外线性能整体上好于100%锦纶,有颜色的防晒衣抗紫外线性能也好于白色系列。

To study factors affecting the sunscreen performance of used sun-protective clothing,through online collection,20 well-known brands of sun-protective clothing were selected as research samples.The influence of using time,washing frequency,fabric surface integrity,fabric composition and color on the UV protection performance of used sun-protective clothing was analyzed.The results showed that the five used sun-protective clothing which had been used for 3 years could not meet the standard requirements of effective sunscreen.The unqualified rate of sun-protective clothing used for two years was 60%,and the unqualified rate of sun-protective clothing used for one year was 10%.For the sun-protective clothing which had been used for less than 2 years,it was recommended that the cleaning frequency should not be more than twice a month.The surface integrity had a great influence on the UV resistance of fabric.For the sun-protective clothing which had been used for one year,the UV protection of 100%polyester fiber was better than that of 100%nylon.The UV protection performance of colored sunprotective clothing was better than that of white series.