Many ordinary clothing also have UV protection properties, the same clothing In terms of UV protection performance, dark colors are better than light colors, thick fabrics are better than thin ones, and fabrics with a tight structure are better than loose fabrics. In addition, the UV protection properties of clothing may decrease as the number of washes increases and the clothing is stretched during wear. 【Oxford cloth】
In the hot weather for days, a piece of light, beautiful and sun-protective sun protection clothing is a summer must-have for many citizens. However, the reporter visited and found that most of the sun protection clothing on the market did not indicate the UPF value (ultraviolet protection index) value in accordance with regulations, and the material and quality were even more uneven. Some experiments have shown that although the price of counterfeit sun protection clothing is several times that of ordinary shirts, the sun protection effect is not necessarily stronger than that of dark-colored shirts.
The reporter visited and found that whether it is in a brand store or a clothing store on the street, this kind of clothing has a plastic texture and is slightly soft to the touch. Transparent and brightly colored sun protection clothing are available for sale, with prices ranging from thirty to fifty yuan to several hundred yuan. The materials of these “sun protection clothes” are not the same. Most of them are made of polyester, and some are made of nylon. Some sun protection clothes are made of “nano coating”.
Are there specific indicators for the sun protection performance of sun protection clothing? The reporter’s inquiry found that in 2011, my country launched the latest evaluation standard “Evaluation of UV Protection Performance of Textiles”, which clearly stipulates: Only when the UPF value of the clothes is greater than 40, and UVA (the most penetrating ultraviolet ray) is transmitted Only when the rate is less than 5% can it be called an “UV protection product.” The higher the UPF value, the better the sun protection effect.
Regular sun protection clothing tags have three requirements: first, the product is required to mark the UPF value on the tag; second, the tag also requires Consumers are reminded that the protective properties provided by this product may be reduced with long-term use and when it is stretched or wet. Finally, it is also necessary to indicate that the standard used when testing the clothes is “Evaluation of UV Protection Performance of Textiles”, and the number of the evaluation standard must be on the tag. [600D Oxford cloth]
However, the 20 “sun protection clothing” counters visited by reporters yesterday found that 80% of the “sun protection clothing” counters There is no clear indication of sun protection parameters on the label.
Spot check: Nearly 80% of sun protection clothing does not protect against ultraviolet rays
In July last year, the Jiangsu Provincial Quality Supervision Bureau released the “2015 UV Protection Clothing Supervision and Spot Inspection Quality Analysis Report”. A total of 82 batches were randomly inspected. The compliance rate of “UV protection products” was only 26.8%, and nearly 80% of sun protection clothing Does not have UV protection function. There are 31 batches of samples that meet the air permeability requirements, with a compliance rate of 37.8%, while there are only 5 batches that have UV protection and good air permeability, accounting for 6.1%.
The reporter learned that generally fabrics achieve UV protection by adding coatings. The thicker the coating, the better the UV protection. The better, but the increase in coating will lead to poorer breathability of the clothes, making it easier to feel stuffy when worn. In addition, washing will also reduce the UV protection index of sun protective clothing.
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