The sun is hot and hot in summer, and it is the number one enemy of the skin. Choosing a good sunshade for sun protection can greatly reduce the lethality of the sun, but the quality of the sunshade on the market is uneven. How to choose a real sunshade? How much do you know about the "protective umbrella"? . From a professional point of view, people often say that "shade umbrellas, sun umbrellas" are actually anti-ultraviolet umbrellas. He Lingjun, secretary general of the Umbrella Manufacturing Committee of the China Daily Sundries Industry Association, told the "Life Times" reporter that when choosing this umbrella, you should pay attention The following three aspects.
First, look at the label. It mainly depends on the protection index, namely the UPF and UVA values. Only when the UPF is greater than 40 and the UVA transmittance is less than 5% can it be called an anti-UV product. The larger the UPF value, the better the anti-UV performance. In general, most of the signs on the market are "UPF50 +", and its protective function is enough.
Second, look at the color. In the case of the same fabric, the dark umbrella is more effective in preventing ultraviolet rays. The biggest difference between a parasol and other umbrellas is that it has an anti-ultraviolet coating to prevent the penetration of ultraviolet rays.
Third, look at the fabric. The thicker the umbrella surface, the tighter the fabric, the better the UV resistance. Compared with cotton, silk, nylon and other fabrics, polyester is more sun-resistant. If you want to know the sun protection effect of a parasol, you might as well try it in the sun. The darker the shadow, the lower the light transmittance.
When buying parasols, be sure to choose branded products. Generally, regular manufacturers will use the brand logo in multiple places, such as the seam of the umbrella surface. In addition, rainwater will corrode the anti-UV coating, it is best to separate the umbrella and the umbrella. If the umbrella surface is dirty, it can be rinsed with clean water or gently rubbed by hand, otherwise it will affect the effect.
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