Acrylic Fiber Is An Ideal Sunscreen Material.

"P", an expert said in an interview with reporters, acrylic fiber is an ideal material for sunscreen clothing. UV resistant sunscreen clothing can generally achieve ideal sunscreen effect.

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< p > China Environmental Protection Federation environmental protection standard Specialized Committee director, Beijing < a target= "_blank" href= "http://www.91se91.com/" > clothing < /a > School of materials, associate professor Gong Yanzai told reporters that at present, there are mainly two kinds of sun protection clothing sold on the market. One is to achieve sunscreen effect by means of smear sunscreen layer on a target= "_blank" href= "target=" > cloth > < >. The sunscreen clothes produced by this method usually use adhesives. These adhesives will form a film on the surface of cloth, which is generally airtight, and feels hard, and it is muggy when wearing.

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< p > the other is a thin plucent sunscreen, which is made of microporous fibers which are treated with ultraviolet radiation. It can not only play the role of sunscreen but also increase the moisture absorption and sweat perspiration of cloth, and is more suitable for wearing in hot weather.

This lightweight sunscreen fabric is mainly made of chemical fiber products, such as polyester, nylon, acrylic and so on. In these materials, because of the best light fastness of acrylic fiber, it is an excellent sunscreen material.

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< p > anti ultraviolet > a href= "http://www.91se91.com/news/index_c.asp" > fiber > /a > the processing method is mainly to add ultraviolet absorber to the spinning raw liquid, such as mixing the titanium dioxide (TiO2) particles with the monomer of the fiber to make the evenly distributed silk thread, and then use the silk thread to weave the cloth into a sunscreen.

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< p > < strong > UV treatment can prevent sunscreen < /strong > /p >

< p > Gong explains that the UV protection mechanism of sunscreen is divided into two types: Reflection and absorption, and the UV absorbers used are mainly inorganic and organic two.

Inorganic UV shielding agents mainly use some inorganic substances to better reflect, reflect and scatter light to achieve UV protection. They mainly include titanium dioxide TiO2, Zinc Oxide ZnO, alumina Al2O3, kaolin, talc, carbon black and so on.

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< p > organic UV resistant agents mainly use ultraviolet energy and energy conversion to turn ultraviolet into low energy thermal energy or shorter wavelength electromagnetic wave, so as to achieve the purpose of preventing ultraviolet radiation.

Most of the ideal ultraviolet absorbers have conjugated structures and hydrogen bonds, which can be converted into heat, fluorescence and phosphorescence after ultraviolet absorption. They mainly include phenyl ketones, salicylic acid compounds and organic nickel polymers.

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< p > Gong explains that sunscreen, which is usually treated with ultraviolet radiation, can achieve ideal sunscreen effect.

But it needs to be reminded that at present, the sunscreen clothing is not good and bad in the market. It is suggested that consumers should choose to clearly specify the clothing materials in the label of the goods when buying. The fabrics are mainly chemical fiber products, including polyester, nylon, acrylic, etc., and acrylic fiber is the best sunscreen material because of its best light resistance, UPF index (the ratio of ultraviolet radiation to the average radiation of unprotected skin, the higher the index, the better the sunscreen) and so on, and the related parameters are < a href= "http://www.91se91.com" > sunscreen clothes < /a >.

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< p > < strong > effect comparison < /strong > < /p >.

< p > < strong > sun protection clothing VS general clothes < /strong > /p >

< p > < strong > Quality sunscreen is lighter and more expensive, < /strong > /p >

< p > is it necessary to wear sunscreen? Does it mean that you have to wear sunscreen? Can ordinary clothes play a good sunscreen effect? Gong said that the SPF value of ordinary shirts can reach about 30. The thicker clothes, the better the sunscreen effect, but the summer wear is hotter.

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"P >" and good sunscreen clothing is made of multi microporous fibers. These micropores make the pores of "a target=" "_blank" "http://www.91se91.com/" > "/a >" increase, and the density of the fibers is reduced, thereby enhancing the permeability of the clothing, which not only is light in texture, but also can be absorbed into the air on the surface of the skin, and it will feel breathable and dry when wearing the skin.

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< p > some top grade sportswear is made of this kind of multi microporous fiber, even if people sweat in sports, clothes will not stick to the skin.

"Of course, the sun protection clothing that achieves this effect is generally priced at a high price. At present, a lot of cheap sunscreen clothing does not have a good sunscreen effect, especially some counterfeit products," Gong said.

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< p > < strong > sunscreen VS sun umbrella < /strong > /p >

< p > < strong > umbrella can only protect part of the body < /strong > /p >

< p > Gong introduction, at present, sunscreen is commonly divided into two kinds: organic and inorganic. Inorganic sunscreen is dispersed evenly by solvent, such as Zinc Oxide ZnO, which forms a suspension. When applied to the skin, it can separate the skin from the outside. However, when using this sunscreen, it will be as if it is not too comfortable to paste a layer of mud on the skin.

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< p > organic sunscreen cream absorbs ultraviolet rays by combining certain chemicals with cells. It needs to be reminded that allergic skin needs to be used with caution.

This sunscreen cream needs to be smeared 20 minutes ahead of time, and it needs to be painted every 3-5 hours.

When sweating or swimming, you can apply it every 2-3 hours.

Sunscreen cream is not washable with ordinary facial cleanser. It needs to be removed with makeup remover, so the use of sunscreen is troublesome.

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< p > as for sunshade, Gong explains that although there is a good anti ultraviolet effect, the sun is multi angle. The ultraviolet rays on the ground may reflect to the human body, and umbrellas can only protect part of the body.

Sometimes the wind will be very strong in summer. It's harder and harder to carry an umbrella.

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< p > < strong > Professional reminder < /strong > /p >

< p > > strong > SPF15, sunscreen is relatively safer. < /strong > /p >

< p > Shen Yongjia, Professor of Fine Chemical Research Institute of East China University of Science and Technology, told reporters that sunscreen is generally divided into two categories: children and adults. Sunscreen will usually indicate the SPF value in the outer packaging, that is, the SPF.

Generally speaking, the sunscreen factor of children's sunscreen is 15. The key component of sunscreen is ultraviolet absorbers. There are more kinds of ultraviolet absorbers, while the ultraviolet absorbers with SPF value of 15 are titanium dioxide. They are nontoxic and are relatively safe. While SPF is labeled as its sunscreen, it is made of organic compounds. It is suggested that people try to buy sunscreen with a SPF value of 15.

In addition, because sunscreen will decompose under the sun's rays, it can't keep sunscreen, so it needs to be smeared twice a day.

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< p > sunscreen clothing, which is really treated with UV protection, is a good choice.

It is light, thin and easy to carry. It can protect skin completely, without makeup, makeup and makeup remover.

The material itself will not cause direct damage to the skin.

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< p > cloudy day needs sun protection too. < /p >

< p > Lun Wenhui, director of Dermatology and venereal diseases department of Beijing Ditan Hospital, reminds us that in fact, sunscreen is mainly against ultraviolet radiation. One thing that needs to be specified is that it is not only in sunny weather that we need sunscreen. For example, ultraviolet radiation can still be exposed to human body through cloud layer on cloudy day.

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