Silk is a continuous long fiber that is solidified by the silk liquid secreted by mature silkworms when they cocoon. Natural silk? . Like wool, it is one of the earliest animal fibers used by human beings, which can be divided into silkworm, tussah, cassava silkworm, camphor silkworm, willow silkworm and wild silkworm according to different foods.

So how is silk used by human beings?

About 4,700 years ago, China used silk to make silk thread, ribbon and simple silk fabrics. During the Shang and Zhou Dynasties, silk was used to weave silk fabrics, such as Luo, Ling, Wan, Yarn, Crepe, Qi, Brocade and Embroidery.

In addition, silk is spun silk with protein as the main component, which can not only play its high-quality fiber function in the clothing field, but also develop various new functional materials through various chemical or physical treatment methods, thus broadening the new uses of silk:

The first point is that in the medical field, it can be used as silk fibroin and sericin, and then treated with concentrated sulfuric acid to obtain the same substance as heparin, which also has anticoagulant activity and plays an important role in delaying coagulation time; You can even develop blood testing equipment or materials with antithrombotic properties; Can also be processed into advanced water-based materials or physiological health products; In orthopedic treatment, we can also develop "bonesetting materials", artificial muscles or artificial ligaments.

The second point: in the industrial field, it can be used as an additive for cosmetics or health food; Can also be made into silk paper or food preservation materials, processing contact lenses, and developing? Silk leather "and various interior decorations.

The third point: can you make a natural silk fabric mask and lead the new beauty trend? . Because the structure of natural silk is very similar to human skin, it has the reputation of "second skin" of human body. Because of its medicinal value, silk was used for daily beauty care by concubines in the harem at that time. Silk protein powder can also eliminate skin dark spots and treat suppurative dermatitis. Nowadays, the beauty industry has set off a wave of silk beauty. Cosmetics made of silk have become the first choice for countless women who love beauty.

The fourth point: diaosi is getting more and more attention and pursuit. Now the expensive silk on the market has been used to make silk pillows, even silk pajamas and underwear. It can be said that silk plays an increasingly important role.