The heat wave is rolling, and midsummer has not officially started yet, but you are already sunburned? Skin clothing appears around us without any worries. After searching on a certain website, an engine for “skin clothes” found more than one million pieces of clothes with this function. From styles to colors, it is dazzling. There are only a dozen or so “skin clothes” with high sales. yuan, with a transaction volume of nearly 50,000. But guys, are you sure the clothes you buy are really sun-protective?
How can outdoor sports be done “for nothing”? ? ?
“Orthodox” skin clothing not only has the function of preventing sunburn, but its main job is actually to resist the “sunlight killer” UVA. UVA has strong penetrating power and can directly reach the dermis layer of the skin, destroying elastic fibers and collagen. Protein fibers cause skin aging and even lesions. Can the skin clothing you bought really provide such protection?
In fact, there are two physical principles of UV protection: one is to shield and reflect UV rays; the other is to absorb UV rays and convert light energy into heat. From the selected fabric fibers, fabric structure, dyeing and finishing steps, coating and other processing methods, clothes can be made to have UV protection function.
So, how to choose “orthodox” skin clothing?
1. Teach you how to read hangtags directly
1) Check the executive standards. The current national standard is GB/T18830-2009.
2) Check the UV protection index label: UPF value 40+ or 50+, and UVA <5%, which means excellent UV resistance.
2. Look at the fiber content
Among natural fibers, the UV protection effect of wool fabric is better than that of cotton and linen fabrics; among chemical fibers, the UV protection effect of polyester fiber is better than that of nylon, acrylic fiber, and viscose fiber; the UV protection effect of cellulose fiber is relatively poor. In skin clothing, the material components are mostly nylon or polyester.
3. Look at the color
Different colors have different absorption bands of light and different resistance to sunlight. Generally, dark-colored fabrics have better UV protection than light-colored fabrics.
In summary, it is recommended to pay attention to sun protection standards and SPF index and choose brand clothing.
Finally, let me tell you a short story about bionic sunscreen. How do the developers of skin clothing find inspiration? There is a kind of butterfly called the sunset saucer. Its wing scales are thin, gorgeous and inlaid with a dense layer of butterfly powder. Whenever the temperature rises and the sun shines directly, the scales automatically open to reflect and scatter the sun, reducing the impact of the sun. Radiation angle. R&D personnel imitated the sunscreen principle and structure of sunset saucer scales to make fabrics. After professional testing, they can block 99% of UV rays that damage the skin, ultimately forming the TiEF SKIN brand technology.
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