Sunscreen can be sunscreen. Many people wear in summer, so how does sunscreen sunscreen?The following editors introduce the sunscreen clothes to prevent ultraviolet rays?Is a dozen sunscreens useful?
Can sunscreen prevent ultraviolet rays?
In the summer, sunscreen clothes are particularly sold well, but can sunscreens really prevent UV blessing like the merchant propaganda?Sun protection is mainly to prevent the damage to human skin in the sun in the sun.UV rays can be divided into three types based on wavelengths: short waves, mid waves, and long waves.Among them, Zhongwa and long waves have a lot of harm to people. Short waves have basically no harm to people because they cannot penetrate the ozone layer.In the field of health, UPFs of UV protection coefficients are used to measure the harm of medium waves and long waves to people.UPF refers to the ratio of the average effect of ultraviolet radiation calculated when the skin is not protected and the average effect of ultraviolet radiation calculated when the skin is protected by textiles.For example, if the UPF is 50, it means that there is
Ultraviolet rays can be used through textiles.As a result, the higher the value of the UPF, the less UPF can penetrate the ultraviolet rays, and the better the effect of anti -ultraviolet radiation.Therefore, choosing sunscreen depends on the trademark logo of the clothes, and judge the sun protection effect of sunscreen according to the UPF range.UPF <15, cannot be marked as sunscreen or ultraviolet clothing; UPF is 15-24, indicating that the clothing has a good UV performance UPF to be 25-39, indicating that the clothing has good UV performance upffUV protection is very good; UPF> 50, its anti -ultraviolet performance is the best.In addition, the fabrics of the clothes also have the function of blocking ultraviolet rays, so you need to note the clothes fabric when choosing sunscreen.The effect of polyester anti -ultraviolet is better than silk, and silk is better than cotton, nylon, and acrylic.In addition, the color of the clothes will also play a role in radiation.The anti -radiation effect of dark red and hidden blue clothes is better than other color clothes, and the protective effects of light -colored clothes on ultraviolet rays are poor, because light -colored clothes often contain fluorescent whitening agents, which will reflect harmful light to faces without protectiondepartment.A dermatologist said that most of the sunscreens on the market have no sunscreen effect, because the textile density of UV -proof clothes is very high. Such clothes are generally not breathable, and it will be particularly uncomfortable to wear in hot summer.The hot -selling sunscreens on the market are almost made by ordinary fabrics. It can only block a small part of ultraviolet rays. The propaganda that can "prevent ultraviolet rays" is just a gimmick used by merchants to speculate.Most of the sunscreens on the market are just hype of merchants. Therefore, when consumers buy, they must polish their eyes. Pay attention to the UPF value in the logo. It is best to choose sunscreen with high UPF values ??and dark polyester fabrics.
Is a dozen sunscreens useful?
The price of sunscreen on the market is very different, from twenty or thirty to seven, seven eight, or even 1,000 yuan, and the span is too big.Thats more useful. After watching some investigations made by reporters in the news, you can know.
News reports about the useless news about sunscreen clothes. The reporter in the news did an experiment.It is found that the seven samples sent by the reporter are all unqualified, that is, it does not prevent ultraviolet rays, because sunscreen is anti -ultraviolet rays, but these unqualified samples do not have this function.
In fact, many sunscreens are not complete and irregular, let alone sunscreen. It is said that the sunscreen can be the most.In fact, no matter whether it is 20 sunscreen clothes and hundreds of thousands of sunscreen clothes, even if the two better sunscreens with sunscreen function belong to this more expensive gear, but in total, there are a total ofSeven samples, only two qualified data are also very direct, sunscreen is not so sun protection.

Related tags： Apparel