Many people say that dark clothes absorb heat, and they must be the coolest in white clothes, but is that so? Guess, they are also wearing skirts, the three of them, who wears the coolest body feeling?

Let's look at another experiment.

Test I

At 12 o'clock at noon, when the sun is fierce, hang three pieces of clothes on the clothesline and put a thermometer on each piece of clothes. After 5 minutes, the thermometer on the red and black clothes appeared to be now over 40°C, while the thermometer on the white clothes showed a temperature of 38.7°C.

Test 2

At an outdoor temperature of about 32°C, the clothes are laid flat on a straw mat and exposed to the sun for 20 minutes. The thermometer on the red clothes showed the lowest number, 36.5 ℃. The thermometer for white and black clothes showed figures of 37.1 ℃ and 36.9 ℃ respectively.

conclusion

According to the test results, it was found that white clothes were the coolest in a short period of time, while red clothes were cooler in a long period of time. For a long time, people simply take it for granted that dark clothes absorb heat fast and white clothes absorb heat slowly, so light clothes will be cooler in a short time.

Light-colored clothes can reflect some ultraviolet rays, but the ability to absorb ultraviolet rays is not good, while red light has a longer wavelength and can absorb many ultraviolet rays in sunlight, so if you are in the sun for a long time, wearing red clothes will be cooler.

It's not that the less you wear, the more you can prevent heatstroke.

Many people think that it will be cooler to wear sleeveless and suspenders in summer. Many men like to be shirtless and feel that it is cool. In fact, the less you wear in summer, the more you can prevent heatstroke. As long as the skin temperature is higher than the ambient temperature, the skin can conduct heat dissipation. When the temperature is close to or exceeds the human body temperature, the skin not only cannot conduct heat dissipation, but also from the outside. Absorbing heat in the environment makes it easier to cause heatstroke.

Dark clothing is cooler

Harvard University in the United States has done an experiment, the results show that the summer wear dark clothing than wear white clothing cooler. Black clothes absorb more heat than white clothes. The absorbed heat can form convection power in the clothes, taking away the sweat and part of the heat on the skin appearance. The human body will naturally feel cool. Of course, black clothes should be looser, which can strengthen the "convection" and add the coolness of the clothes.

In addition, when wearing black clothes indoors or on cloudy days, there is less sunshine at this time. Black will not give full play to its nature of fast heat absorption. Instead, it will only give full play to its ability of fast heat dissipation and quickly drain away the heat from the skin's appearance, making people feel much cooler. Naturally, it is cooler than clothes of other colors.

Seemingly frivolous chiffon skirt, quick-drying clothes are not cool

Chiffon skirt, chiffon shirt, quick drying clothes... This seemingly light and cool material is not "cool". In summer, the human body sweats a lot. Although chemical fiber fabrics are relatively frivolous, they have poor water absorption and air permeability. It is difficult for the skin to dissipate heat through sweat transpiration. Excessive retention of sweat will cause erosion and fermentation of skin secretions. In addition, synthetic fibers are mixed in the production process. Monomer ammonia, methanol and other chemical components have a greater impact on the skin and simply induce allergies and dermatitis.

In contrast, natural fibers such as cotton, hemp and silk are the first choice for high temperature days. Silk has good skin affinity, is more frivolous, and is cool to wear. Cotton clothes absorb sweat and have good air permeability. Flax raw materials have large pores, good air permeability and water absorption.

The "sun protection value" of clothes is not only related to color

The anti-ultraviolet effect of clothes depends not only on the color, but also on the material of the clothes. The sun protection value of cotton clothes is 15~40, the sun protection value of light color polyester fiber clothes is 7~10, and the sun protection value of light color knitted clothes is 4~9. If you want UV protection, you 'd better wear dark cotton clothes.

Article from: Sanshun clothing customhttp://www.samsunclothing.com/