Lemon yellow, apple green, sky blue, watermelon red ... The reporter who loves to buy recently visited a number of shopping malls and shops and found that almost every container specializing in outdoor products is hung with colorful sunscreen clothes, and even the subway entrance has stalls selling sunscreen clothes. Most sunscreens are as thin as cicadas' wings and can be easily put into a purse-sized bag when folded. However, the reporter found that the materials of these sun protection clothes are very thin, and there is no sun protection logo or even a trademark.
Compared with the popularity in various places, online sales are booming. On July 20th, a reporter who loves to buy goods entered "sun protection clothes" in Taobao and found 996,408 related treasures, but the monthly transaction record of an online store actually reached 128663. Most of the products are marked with "UV protection, sun protection, transparency and authenticity", and some are also marked with "special sun protection fabric" and "polyester fiber". These online stores not only sell seven or eight colors to choose from, but also fabrics such as lace and chiffon. It is also divided into long models and short models, and the price ranges from several yuan to several hundred yuan. The most popular one is the low-cost sunscreen clothing of several tens of yuan.
? Sunscreen clothing was first popular in the United States in 2007, and then entered China. At first, it was mostly used for outdoor products and rarely used for ordinary clothes. Later, it was favored by many girls. ?
? The main function of sunscreen clothing is to prevent the direct exposure of ultraviolet rays from the sun, which is the same as that of parasols.
Sun protection principle
? Sun protection clothing adopts high-quality polyester fiber, and the sun protection coefficient of various fibers is: polyester fiber >; Cotton fiber > artificial cotton and silk.
Most of the fabrics of sun protection clothes are anti-ultraviolet fabrics with sun protection additives, and some sun protection fabrics combine ceramic micro-powder with fiber to increase the reflection and scattering of ultraviolet rays on the surface of clothes and prevent ultraviolet rays from hurting human skin through fabrics.
Sun protection clothing is made of fabric that can prevent ultraviolet rays, and the inner layer of the clothing is coated with sun protection coating, just like a sun umbrella. A sunscreen suit can block 95% ultraviolet rays.
Wear clothes with anti-ultraviolet function in hot season, sweat will be quickly exported from the skin surface to the fabric surface, and it will soon dry, so it will no longer be bothered by sweat.
Ultraviolet rays are the main cause of premature skin aging, causing photoaging and even skin cancer.
Sunscreen standard
It is stipulated in the Evaluation of Anti-ultraviolet Performance of Textiles that only products with upf (that is, UV protection coefficient) greater than 30 and uva (long wavelength ultraviolet) transmittance less than 5% can be called "anti-ultraviolet products". These two conditions are indispensable. This is an index to measure whether a product is an "anti-ultraviolet product".
? The following three items should be marked on the label of UV-proof products: the number of this standard, namely GB/T18830; Upf value: 30+ or 50+; After long-term use and in the case of stretching or moisture, the protective performance provided by this product may be reduced.
Clothing made of regular sunscreen fabrics will be marked with a clear ultraviolet protection coefficient on the clothing label.
Is the sunscreen clothing sunscreen?
? Regular sun protection clothes need special treatment and the price is higher. Low-priced sun protection clothes are mostly gimmicks, and most of them just play the role of sun protection for ordinary long-sleeved clothes.
Professional protective clothing used by astronauts and other special people is very expensive and can prevent ultraviolet rays and radiation.
A good sunscreen fabric can not only prevent ultraviolet rays, but also quickly guide sweat to the surface of the fabric and dry it quickly; Inferior fabrics, on the other hand, have poor moisture absorption and air permeability, which makes people feel uncomfortable and even covers up prickly heat after wearing for a long time.
The sunscreen effect of ordinary cloth is better than any sunscreen, and the sunscreen effect of ordinary cloth is also better than that of ordinary cloth. However, the fabric added with sunscreen additives will reduce the sunscreen effect after repeated washing. In ordinary cloth, in terms of color, the darker the color, the higher its ultraviolet resistance, such as black; As far as texture is concerned, polyester is superior to nylon, and nylon is superior to rayon and silk.
Most sun protection clothes are not marked with a sun protection index.
In Dongchuan, a famous sports city in Hai Yin, reporters who love shopping found that only a few brands, such as KAILAS, have anti-ultraviolet labels. According to the shop assistant, this label can only be obtained if it passes the anti-ultraviolet index test of the State Quality Supervision Bureau. The label is marked with the following three contents: the number of this standard, namely GB/T18830; UPF value: 30+ or 50+; After long-term use and in the case of stretching or moisture, the protective performance provided by this product may be reduced. The reporter who loves to buy then visited a number of shops in a row and found that most of the sun protection clothes did not have anti-ultraviolet labels. The reporter asked these sellers what their sun-protective clothing sun protection index was and why there was no UV protection label, but the sellers were vague and said they were not very clear.
? Through the Want Want chat tool, the reporter contacted several Taobao shopkeepers selling sun protection clothes. When asked how high the sun protection index of sun protection clothing is, most shopkeepers' answers are vague. When asked about the materials used in the sun protection clothes, the owner couldn't say why, only that the effect was very good. Ms. Peng, who came back from a seaside holiday after wearing a sunscreen for a few days, told the author: "Sunscreen feels no different from ordinary clothes. It has the effect of shading, but the sun protection is not obvious, and it is still much darker. "
How to buy sunscreen clothing?
? It is understood that in 2003, the General Administration of Quality Supervision, Inspection and Quarantine issued the "Evaluation of Anti-UV Performance of Textiles", which stipulated that only when the UPF (that is, the UV protection coefficient) of a product is greater than 30 and the UVA (long-wave ultraviolet) transmittance is less than 5% can it be called an "anti-UV product". These two conditions are indispensable. This is an index to measure whether a product is an "anti-ultraviolet product".
? The following three items should be marked on the label of UV-proof products: the number of this standard, namely GB/T18830; UPF value: 30+ or 50+; After long-term use and in the case of stretching or moisture, the protective performance provided by this product may be reduced. According to industry insiders, the clothes made of regular sunscreen fabrics will be marked with a clear UV protection coefficient on the clothes sign, and the clothes material, UPF index and other related parameters will be clearly marked on the sign.
? In addition, washing or stretching for a long time may reduce the sunscreen performance of clothes, so it is necessary to replace or re-add additives to clothes. See the relevant instructions of the product for details.
? Experts from the Testing and Standards Committee of China Textile Engineering Society said that not all sun protection clothes on the market can "protect against the sun" (resist ultraviolet rays), even many well-known brands can do it.
Because the popular style is too thin, it does not meet the requirements of GB/T 18830. Ordinary dense and dark clothes can meet the requirements of national standards for anti-ultraviolet. The principle of sun protection is mainly to block ultraviolet rays harmful to human body. When buying clothes, you just need to buy something thicker, darker and denser. For example, an ordinary T-shirt with a weight of 220g/m2 has extremely high ultraviolet resistance, and the UPF can reach more than 100, which is far higher than the national standard of 40+.
What color clothes are the most sun-proof?
Wearing red clothes is good for health.
? Every time ozone in the atmosphere decreases 1%, the ultraviolet radiation on the ground will increase by 2%, and the incidence of skin cancer will increase by about 4%. Wearing red clothes in the sun can reduce the damage of ultraviolet rays to the skin. This is because ultraviolet rays are the rays with the shortest wavelength farthest from the red spectrum among the seven colors of the sun, and are easily absorbed by the red visible light with the longest wavelength. Therefore, wearing red clothes can absorb and filter out more ultraviolet rays from the sun, thus reducing the harm of ultraviolet rays to the skin.
Children wear red clothes in summer to protect themselves from the sun. Red has the longest wavelength and can absorb a lot of ultraviolet rays in the sun, while other colors are relatively weak, so wearing a red coat can block ultraviolet rays and prevent sunburn.
Reference address &; Recommended reading:
/ 13/073 1/ 16/954 ijjfb 00264 mnt . html
/view/7289222.htm
/article/EAE 07827 f9b8e 6 1 FEC 54852 1 . html