How much is silkworm cocoon per jin, and how is it processed into a silk quilt

Silkworm cocoons are also called silkworm garments, among other names, and refer to the cocoons of the mulberry silkworm; they are the sac-shaped protective layer of the mulberry silkworm during the pupal stage. The protective layer includes parts such as the cocoon floss, the cocoon shell and the pupal lining. The cocoon shell can be reeled into silk, while the cocoon floss and the waste silk after reeling can be used as silk wadding and as raw material for silk spinning. Their economic value is relatively high, but many people only know about sleeping under silk quilts and do not know how they are processed from silkworm cocoons. So how much is silkworm cocoon per jin? And how is it processed into a silk quilt?

1. How much is silkworm cocoon per jin?

The price of silkworm cocoons is not fixed. Under normal circumstances, the price of Grade A dried cocoons is about 58 yuan per jin, while the price of fresh cocoons is about 17 yuan per jin, but this is the average price across the country; prices vary from place to place. At the same time, prices also vary according to the quality of the cocoons. Generally, cocoons with a high rate of good cocoons and traits such as good reelability, long silk length and a high silk yield are all superior cocoons and fetch higher market prices. In addition, traits such as pure white cocoon color, normal luster and uniform cocoon shape are also important standards for high-quality cocoons. Therefore, the above cocoon prices are for reference only, and the specific price should be based on the actual price.

2. How are silkworm cocoons processed into a silk quilt?

1. Selecting the silkworm cocoons

After being raised for about 30 days, silkworms spin silk to make cocoons and become pupae, then metamorphose into moths inside the cocoons. To prevent the silkworms from turning into moths and affecting silk quality and later processing, a drying method is generally used to prevent the cocoons from turning into moths or deteriorating. High-quality double cocoons and silk drawn in a tangled way from double cocoons are selected, making the silk quilt more firmly interwoven in both directions.

2. Hand peeling of the cocoons

Put the dried cocoons into water and boil them thoroughly, generally boiling for another 15-40 minutes after the water comes to a boil, then letting them cool. Open the cocoons by hand to make them into cocoon caps while separating out the pupae; generally 4-5 cocoons make one small cap. Stretch the cocoon caps open over a parabolic bamboo bow; generally 4 cocoon caps are placed one by one on the bamboo bow and stretched open. The main purpose is to make it easier to draw the silk for the quilt. When stretching, the force must be even to prevent uneven thickness in the finished product later, and any remaining pupae must be cleaned out at the same time.

3. Drying the cocoons

After the opened cocoons are spun dry, tie them in bundles of 10-12 and dry them in a cool, ventilated place. Once completely dry, they are the raw material for making silk quilts. High-grade silk quilts generally require raw materials with few impurities, long fiber length, naturally clean white color, uniform thickness, and a natural silkworm fragrance and lustrous sheen.

4. Drawing the quilt batting

The fully dried cocoon caps are slowly pulled apart by a team of four people into the required size for the quilt core. Each single net must be evenly stretched and evenly stacked in thickness, then stacked layer by layer to the required weight; this is called net stacking. Because the friction between the silk layers of the net-stacked silk batting is great, the finished product does not easily shift, and it is also evenly thick, breathable and comfortable.

5. Turning the cotton and quilting

Place the silk batting inside an outer cover sewn on three sides and adjust its position so that the edges of the silk batting fit closely with the four sides of the outer cover, avoiding a situation where the edges, especially the corners, have no core. Fix the outer cover and silk batting vertically by quilting. Generally, because silk quilts use the net-stacking process, the silk batting does not easily shift, so point fixing is usually enough; this is both attractive and comfortable. There are two forms, hand fixing and quilting machine fixing, and finally the opening is sewn shut.

6. Making the finished product

The finished silk quilt is soft, close-fitting, breathable and comfortable, and has good warmth retention. The product is light, soft and supple, does not collect dust, and is healthy and environmentally friendly. Its basic composition is similar to human skin, and it is rich in amino acids needed by the human body, which can promote cell vitality, so it is known as the human body's second skin.

Summary: The above is the relevant introduction to the price of silkworm cocoons and how they are processed into silk quilts. I hope it is helpful to friends who need it!