Cotton cloth has good heat preservation and moisture absorption, can absorb sweat from the skin, and has good air permeability. And soft close to the skin, no static phenomenon. Underwear processing factories believe that its disadvantages are easy to wrinkle and shrink.
The exterior is not very pretty. Silk is composed of protein fibers, has excellent biocompatibility with the human body, is thin, has a smooth surface, and has the lowest frictional stimulation coefficient on the human body among various fibers, only 7.4%, and has an emollient effect. It has better air permeability, moisture absorption, moisture dissipation and heat dissipation than cotton cloth.
Under normal temperature, it helps the skin maintain a certain amount of moisture. Wearing non-drying clothes in summer can quickly dissipate sweat and heat from the body. It is warm in winter and cool in summer. Its disadvantages are that it is easy to wrinkle, easy to absorb, not strong, and fades quickly.
Chemical fibers are popular for their bright, strong and wear-resistant properties. Chemical fibers have the disadvantages of static electricity, hygroscopicity, air permeability, poor heat resistance, and easy deformation by heat. Three different fabrics of cotton, silk, and chemical fiber were used for pocket experiments, and the inter-strand humidity was measured respectively. The results showed that the relative humidity of cotton cloth was 90%, that of silk was 72%, and that of chemical fiber was 97%.
The heat dissipation of the three different fabrics is greater than that of cotton cloth and cotton cloth, and greater than that of chemical fiber. According to the physiological needs of the human body, the body temperature between the crotch must be 1-2 degrees lower than that of other parts of the body. This is because the temperature of the testis itself can only produce sperm and hormones if there is a temperature difference from the temperature in the body.
If you wear chemical fiber pants, the high temperature and humidity will inhibit these functions. There may even be masculine feminization. Because silk has the best air permeability, moisture absorption, moisture dissipation and heat dissipation, silk underwear is popular overseas.
Women have a lot of perineal secretions, which are close to the anus, and there are many bacteria and other microorganisms. Among the three kinds of fabrics for chemical fiber pants, the local production has the highest humidity and heat. Local damp heat is easy to breed microorganisms such as bacteria.
Therefore, women wearing chemical fiber pants are prone to urinary tract and vaginal infections. After the infection is treated, it is also easy to relapse. Due to the short urethra of women, the microorganisms of urinary tract infection are easy to spread from the urethra to the bladder, and even to the renal pelvis, causing cystitis and pyelonephritis.
Wearing chemical fiber underwear is harmful to the body. The fiber fabrics of chemical fiber underwear, such as elastic tights, nylon pants, nylon socks, nylon and polyester synthetic fiber fabrics, can release a small amount of plastic monomers after being heated by the human body. In addition, when processing chemical fibers, the added softeners, aerosols and antistatic agents are also potentially harmful to the human body.
At present, the agricultural, chemical and textile industries are improving and innovating the fibers of various textile fabrics. It is believed that in the near future, there will be better and more suitable fabrics for body shaping underwear. Like the fiber called antenna, it is made of paddle cotton, which is soft, has better water absorption and air permeability than cotton, and is harmless to the human body.
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