How Can Sunscreen Be Effective? Sunscreen Clothes Can'T Be Mistaken!

Will June be enough for sunscreen? There must be many girls who bought sunshade and sunscreen clothes. Today, Xiaobian comes to Amway under sunscreen. Its main function is to obstruct the direct radiation from ultraviolet rays of the sun, which is the same as that of sunshade.

Sunscreen clothing first became popular in the United States in 2007, and then entered China. Most of the products are used in outdoor products, and there are few applications in ordinary clothes.

There are many kinds of sun protection clothing, shirt type, coat type and so on. UNIQLO sunscreen clothing is a popular style. Judging whether a sun protection clothing has enough sunscreen power can be seen if there are: "UPF" and the national standard number, and regular UV protection products will be tagged. The UPF value refers to the UVA transmittance value, such as UPF50+, UVA<5%, and the higher the value, the better the sun protection force. This is the same as we usually see sunscreen, while the national standard number is generally GB /T18830-2009. UNIQLO is a Japanese brand. Japan's domestic sunscreen is labeled "UV cut", so you can see the following signs when buying Japanese sunscreen.

Summer wear what color clothes sunscreen: dark clothes sunscreen, especially black, light colored clothes do not sunscreen, but the heat.
Understanding through experiments:
Laboratory equipment: black, white, red T-shirt each one, thermometer 3, long exposure, red clothes the best sunscreen effect, the worst white.
Experiment 1: short-term exposure to 5 minutes, the coolest white.
The same size of 3 colors (red, black, white) cotton T-shirt. At about 12 o'clock noon, the sun was beating fiercely, placing 3 pieces of clothing on the rooftop concrete floor near the roof. At the same time, a thermometer was placed on each of the clothes. The temperature of the red T-shirt and black T-shirt showed that the temperature of the red T-shirt and the black T-shirt had exceeded 40 degrees, and the temperature of the white T-shirt was 38.7 degrees. The temperature was too high for 5 minutes.

Experiment two: after 20 minutes of drying, red is the coolest.
The same device was moved to the straw mat and retested on the balcony where it could be exposed to the sun. After a test, the temperature outside is about 32 degrees. In the straw mat test, this time the thermometer did not explode the watch, and extended the time of the sun to 20 minutes. The result of the test changed. The thermometer on the red T-shirt showed the lowest number of 36.5 degrees. The thermometer of the white and black T-shirt showed the number of 37.1 and 36.9 degrees.
According to the results of the experiment, we found that the white T-shirt was cool and the red T-shirt was cool for a long time. Within 5 minutes of exposure, the temperature of the white T-shirt is significantly lower than that of the black T-shirt and the red T-shirt. When the red T-shirt is exposed for 20 minutes, the temperature is lower than that of the white T-shirt and the black T-shirt, and the white sunscreen is the worst.