First: comfortable to wear. True silk is composed of protein fibers and has good biocompatibility with the human body. In addition to its smooth surface, its friction coefficient to the human body is the lowest among all fibers, only 7.4%.
Second: good suction and moisture release. Silk fibroin fibers are enriched with many hydrophilic groups such as amine (-CONH) and amino (-NH2), and because of their porosity, they easily diffuse water molecules, so they can absorb moisture or emit moisture in the air. Keep a certain amount of moisture. Under normal temperature, it can help the skin to retain a certain amount of moisture without making the skin too dry. In summer, it can quickly dissipate the sweat and heat discharged by the body, making people feel very cool.
Silk not only has good heat dissipation performance, but also has good warmth. Its thermal properties benefit from the porous fiber structure. There are many tiny fibers in the silk fibers. These tiny fibers are made of finer fibers. Therefore, the seemingly solid silk is actually more than 38% hollow, and there are a lot of air in these gaps, which prevents the heat from being emitted and makes the silk very warm.
Third: sound absorption, vacuum, flame retardant. Silk fabrics have a high voidage, and therefore have good sound absorption and inhalation properties. Therefore, besides making clothes, they can also be used for interior decoration. Because silk has hygroscopicity, dehumidification performance and moisture retention, inhalation and porosity, it can also regulate indoor temperature and humidity, and can absorb harmful gases, dust, and microorganisms. In addition, the thermal denaturation of the silk fiber is small, and it is relatively heat-resistant. When it is heated to 100° C., it is only about 5-8% brittle, and most of the synthetic fibers have a thermal change degree that is 4-5 times larger than that of the silk. The burning temperature of silk is 300-400°C, which is a kind of flame-retardant fiber, and the burning temperature of synthetic fiber is 200-260°C, which is flammable and easy to melt. Therefore, the use of silk fibers as a raw material for interior decoration not only plays a role in sound absorption, vacuum cleaning, heat preservation, but also functions as a flame retardant.
Fourth: anti-ultraviolet radiation. The tryptophan and tyrosine in silk protein can absorb ultraviolet light, so silk has better anti-ultraviolet function. Ultraviolet light is very harmful to human skin. Of course, after absorbing ultraviolet rays, silk will undergo chemical changes on its own, which will make the silk yellow easily exposed to sunlight.
Fifth: Health. The health care function of silk fiber is irreplaceable. It contains 18 kinds of amino acids necessary for the human body, and it is almost the same as the amino acids contained in human skin. Therefore, it is also known as the “second skin” of human beings. Wearing silk clothes not only prevents ultraviolet radiation, prevents harmful gases from invading, and resists harmful bacteria, but also enhances the vitality of skin cells on the body surface, promotes the metabolism of skin cells, and at the same time has a good adjuvant effect on certain skin diseases.
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