Summer ultraviolet rays are strong, and everyone wants to take sunscreen.When such hot weather goes out, the beauty MMs will prepare a sunscreen to resist the hot sunshine and reduce the sun exposure.What kind of face ...
What fabrics do sunscreen jackets have good sunscreen effects
Summer ultraviolet rays are strong, and everyone wants to take sunscreen.When such hot weather goes out, the beauty MMs will prepare a sunscreen to resist the hot sunshine and reduce the sun exposure.So what fabrics sunscreen and sunscreen effect is good? There is still a lot of knowledge in choosing sunscreen.Lets learn about it with the editor below
The sun protection effect depends on the two aspects, one is the degree of density of the material, and the other is the light transmission of itself.
Sunscreen test
In the chemical laboratorys sunscreen test of each cloth, the main test of 290-400 nanometer ultraviolet rays. The experimental results: the transmission rate of 310 nanometer ultraviolet rays is 19%of Tiansi, 12.4%of Niste Textiles, and cotton 9%, DuPonts rainfall fabric is 8.3%, and the metal silk cloth is 5.3%. The smaller the passing rate, the better the sun protection effect, but the good white coat worn by the laboratory teachers, the UV -rays are only 1.9%.
Xiaobian suggested that people go out to buy one or more sunscreen clothes in the summer when the ultraviolet radiation is relatively strong to prevent being black.

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