Silk is a natural protein fiber woven from silkworm cocoons, and then carefully woven into a textile. The occurrence period of silkworm usually starts from the germination of mulberry, and the occurrence of silkworm eggs is called the green-promoting period, so it should be protected indoors for 12- 13 days, with proper air circulation and temperature and humidity. The hatched ant silkworm is only 3 mm long and weighs 0.5 mg. After mulberry leaves are bred for 25-28 days, the silkworm is 7.5-9 cm long before it matures. It weighs about 4-5g. In the whole sericulture period, it is a series of detailed procedures, such as ventilation and dehumidification, leaf feeding, removal of silkworm excrement and broken leaves excreted by silkworms, and cocooning when silkworms are ripe.

After the silkworm is ripe and cocooned, the next step is to wrap the silk. In order to avoid living pupae of silkworm cocoons during storage, simple cocoon drying and pupation equipment will use heat energy to kill the living pupae in the cocoon cavity of fresh cocoons and remove appropriate amount of water. There are many ways to reel silk. According to the different ups and downs of reeling cocoons, it can be divided into three types: floating reeling, semi-floating reeling and sinking reeling. The ups and downs of cocoon mainly depend on the amount of water absorbed by cocoon cavity after cocoon cooking. Reeling mature cocoons into raw silk requires reeling, sorting, collecting, wrapping, winding, coiling and drying. After the cocoon is reeled into raw silk by the silk reeling machine, it enters the silk weaving stage.

The silk that a silkworm spits out in its short life is 1000 meters long. It takes11cocoon to make a tie, and 630 cocoons to make a blouse.

Silk is the fiber that silkworms spit on mulberry trees. Silk is a kind of ecological pollution-free natural fiber. It has irreplaceable unique properties and unparalleled vitality of other fibers and their processed products. After dyeing and weaving, all kinds of colorful silk fabrics are easier to sew and process into all kinds of high-end garments and indoor decorations, tourist souvenirs and many handicrafts. No wonder foreign consumers regard silk as a "source of beauty".

In addition, silk clothing made of real silk has a health care effect on human body. Since ancient times, silk has been known as the "Queen of Silk". In modern times, people have given it the reputation of "healthy fiber" and "health care fiber". Therefore, the health care function of silk fiber is incomparable and irreplaceable by any fiber. Silk fiber contains 18 kinds of essential amino acids, which are almost the same as those contained in human skin. Therefore, it is also called the "second skin" of human beings. Wearing silk clothes can not only prevent ultraviolet radiation, harmful gas invasion and harmful bacteria, but also enhance the vitality of skin cells on the body surface and promote the metabolism of skin cells. At the same time, it has a good adjuvant treatment effect on some skin diseases. In addition, because of its special hygroscopicity and permeability, it also has the function of regulating body temperature and moisture.