Don'T Blindly Believe In Advertisements For Warm Clothing In Winter.

In supermarkets, you can see all kinds of products.

It has been placed in a prominent position, ranging from tens of dollars to hundreds of thousands of yuan, attracting many people to buy.

Warm card, magic card, heat card...

All kinds of thermal underwear make people dazzled.

In fact, all these tricks are only promotional means for businesses.

The ultimate necessity of wearing thermal underwear lies in its basic function, that is, keeping warm and comfortable. Consumers should not superstitious advertisements. When buying underwear, they should rationally choose those according to their own needs.

Well, a product with large air permeability should not blindly believe in some so-called high-tech concepts. The fabric should be soft, comfortable, light weight, good elasticity, good thermal insulation and breathability. Do not blindly believe in some so-called high-tech concepts.

Analysis of "keep warm"

Whether the clothing is warm is related to the thermal conductivity of the material itself. The smaller the thermal conductivity, the better the warmth retention.

In fact, the thermal conductivity of most clothing fibers is not very different, but because of the difference in the structure of warm fabrics, the thermal insulation of stationary air is the best.

Thermal underwear is made of "hollow" chemical fiber material, which has large space structure and contains still air, so it has certain thermal effect.

Doubts caused by "card" and "element"

"Card" and "Su" were once the selling points of thermal underwear. According to the insiders, they are not so mysterious as advertisements, but they are only the aliases of the manufacturers.

For example, "warming card" and "thermal card" are acrylic fibers. "Sevic" is polyester, "Lycra" and "magic card" are fibers that are elastic and not easy to be rolled up and rolled up. "Warm element", as the name suggests, is a warm element. This is its trade name. Its scientific name is super fine double acrylic fiber.

Antibacterial effect is discounted.

"Harmless antibacterial agents in underwear can kill bacteria that are harmful to human body."

Such advertisements also have moisture.

Experts point out that if antibacterial agents can be integrated with underwear, then the antibacterial agent will change the molecular structure, and it will not be an antibacterial agent.

If there is no integration, the antibacterial agent is only attached to the clothes, then it can be washed away, and the antibacterial effect will not last.

Cotton and elasticity are also a pair of contradictions.

Cotton is a natural fiber instead of delamination, rather than elastic fibers, not to mention elasticity.

And super elasticity, impossible to have at the same time.

Moreover, the thermal underwear thermal insulation layer is chemical fiber, if the two layers inside and outside are all cotton, these two different properties of the material with the same adhesive to bind, it is difficult not to shell.

In addition, even if the inside and outside two floors usually add chemical fiber ingredients, it is difficult to reach 100% pure cotton, because cotton is really a shrinking problem.

Far infrared rays keep warm and do not care.

Any substance can emit far infrared rays, and the thermal underwear is generally treated by infrared ray. The far-infrared emissivity is enhanced. The far-infrared ray produced is also increased, thus playing a role of keeping warm.

As far as the health function of far-infrared rays is concerned, it is generally believed that the ingredients of publicity are far greater than the actual effects.

The far-infrared rays emitted by thermal underwear are similar to the far-infrared rays emitted by the human body. They have certain auxiliary effects on diseases such as joints and frail and cold. Other therapeutic effects such as helping sleep are exaggerated.