There are many brands of thermal underwear, but the main components indicated on the tag are polyester (polyester), viscose fiber, modal fiber, acrylic fiber, spandex and nylon. In addition, some brands of thermal underwear will also indicate their own special materials in the tag, such as "far infrared fiber", "selam" and "export material", and some awkward "high-tech" terms make people see things in a blur.
The concept of "self-heating" claimed by merchants is completely inconsistent with scientific common sense. The concept of self-heating does not conform to the law of conservation of energy, and there must be an energy source.
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Unreliable functional underwear
1, antibacterial underwear
Some knitwear in the market are playing high-tech "antibacterial" brands, including bamboo charcoal antibacterial, ecological antibacterial, Kanglun fiber antibacterial and nano antibacterial. Some say that the use of high-efficiency broad-spectrum antibacterial agents can inhibit harmful bacteria and fungi; Some say that using modern high-tech antibacterial technology has a unique antibacterial and deodorizing effect; Others claim that they can be washed normally and are permanently antibacterial.
At present, there is a standard of Antibacterial Knitwear in China, which stipulates the antibacterial performance of the product. If it meets the standard requirements, it can be judged that it has corresponding functions. However, experts pointed out that the antibacterial function is only that the moisture regain of the material is relatively low and it is not easy to breed bacteria. Therefore, experts suggest that when consumers buy antibacterial clothes, they can ask merchants to produce antibacterial performance test reports.
2. Adjustable underwear
Adjustable underwear is underwear that plays a traction or constraint role on specific parts of the human body to maintain or adjust the shape of specific parts of the human body. You can only temporarily change your body shape to make people look better. Once you take off your underwear, you will soon return to your original shape.
3, skin care underwear
Experts say that milk protein, amino acids and vitamins can really maintain skin elasticity, but technically speaking, it is extremely unlikely that fabric fibers contain milk protein, amino acids and vitamins, so it is not credible to say that they can whiten and moisturize. The quality of skin is closely related to internal factors such as diet, work and rest, and heredity. And thermal underwear can't change the internal cause.
People's Network-Don't be fooled, hot underwear won't get hot.