Beware Of Sales Misleading Market Sunscreen Clothes Than Ordinary T-Shirt Sunscreen.

How to protect the sun from the scorching sun is a headache. Facing the dazzling sunscreen in the market clothing Consumers are very entangled: is the sun protection good or bad? There are rumors on the Internet that the "sunscreen clothes" sold on the market are more common than those in the market. clothes Sun protection, is it true?

In response to these questions, the reporter launched a truth investigation.

　　 Experimental sampling

Reporters in Taobao shop search sunscreen clothing, jumped out of 220 thousand treasures, the average price of dozens of dollars or so. The reporter bought a "Jun Jun" brand of anti UV genuine sun protection clothing, known as "quality inspection", with a monthly sales volume of 130 thousand, the reporter chose a phosphor, promotional price of 24 yuan. Random in Hangzhou City, a small commodity market, reporters found a similar material sunscreen clothes, chose a blue, priced at 40 yuan.

Then, reporters came to some fashion and outdoor brand stores, these "sunscreen clothes" price is much more expensive than the Internet, the price is between 200 yuan and 600 yuan. Reporters in a department store "NORTH FACE" (North) counters found a marked "UPF 50" type of gray T-shirt, priced at 228 yuan.

At the same time, the reporter also bought a black, white and two pure cotton T-shirt, as a representative of "ordinary clothes" samples. Coming to Zhejiang Spin The Institute of testing and testing.

　　 Experimental process

First, put 5 clothes in a constant temperature and humidity environment at 20 degree and 65% humidity for 24 hours. "Because temperature causes the body to expand and contract, and the humidity affects the weight of the object. To avoid errors, these conditions must be controlled. " Yan tech explains the technical inspection department of Textile Institute.

Then, samples were taken, and 9 samples were cut from different parts of the back, hand and front of each garment. Because sampling standards are strictly regulated, it is necessary to make random sampling at more than 4 locations when testing, and every part of the random sampling must meet the national standard, so that the product is calculated.

Finally, the samples were put into the ultraviolet detector and the results were given.

Experts explained to reporters that ultraviolet radiation can be divided into three bands, of which the ultraviolet wave that causes skin tanning is UVA (wavelength 320 to 420nm radiation wave, commonly known as long wave), UVA can go directly to the dermis of the skin, destroy elastic fibers and collagen fibers, and Tan our skin. Therefore, the first thing to compare is the so-called sunscreen clothes and ordinary clothes, which is better for UVA band ultraviolet protection.

　 experimental result

After testing, the results are as follows: the ordinary black and white T-shirt's ultraviolet protection effect is even more obvious than the two bought by reporters from the online and small shopping malls. That is to say, it is called sunscreen clothing, and no ordinary clothes are more sunscreen.

And this brand of sunscreen clothing brand, clearly marked their own sun protection rating. After the experiment, the "sunshade" effect of the grey sunscreen T-shirt on the north side was also reduced by two ordinary T-shirts.

UPF values were analyzed, and the results of the test were as follows: two of the sun protection coats purchased from the online and small commodity markets, UPF were only 3, far below the standard value of ultraviolet protection products (>40), while the two black and white T-shirts purchased by reporters at random were UPF 50+, far higher than the 3 front ones.

It turns out that no matter what brand of sunscreen suits this test is, there is no more sunscreen than this ordinary T-shirt.

In addition, the test results of brand sunscreen clothing are different from their own UPF values: the "north side" brand of sunscreen shirts, UPF grade is 50, and the actual test results are only 41.

Anti UV products are not random calls.

Then, does the country have corresponding standards and regulations for sunscreen performance of sunscreen clothing?

Yan Yan introduces that the state has a standard for textile GB/T 18830-2009 "evaluation of ultraviolet radiation resistance of textiles". Only the ultraviolet protection system of textiles, that is, the UPF value is greater than 40, and the transmittance of UVA is less than 5%, can be called "anti ultraviolet product".

However, this GB/T is a recommended standard and is not a mandatory national standard. However, if the enterprise has tagged this standard on the product, it will represent this enterprise to accept and adopt this standard. The "north side" brand of sunscreen shirts is marked UPF to 50, while the actual test result is only 41. Although it meets the requirements of UV protection theoretically, it has the suspicion of exaggerating efficacy.