Color silkworm cocoon production method

First, choose and improve the law. Such breeds mainly refer to colored tussah species, China has Bilian, Dazao, Mianyanghong, Balinghuang, Ankang No.4, etc.; Japan has Zhongguang Huangyu, PNGPCG, Gunma 125, and so on. Feeding these silkworm varieties can directly obtain colorful natural colored silk.

Second, add pigment method. By adding dye colors of different colors and changing the coloring performance of silkworm silk glands, color silkworm cocoons of different colors can be obtained. From the 2nd day after the 5th instar larvae of the large silkworm to the top of the larva, 1 bag of pigment powder should be used for each set of silkworm eggs. The leaves with pigment dilutions should be added twice a day sooner or later. One bag of pigment powder is poured into a 10 liter plastic bucket, and a suitable amount of warm boiled water at about 45° C. is dissolved into a pigment undiluted liquid, and then is mixed with cold boiled water at a ratio of 1:5 to prepare a pigment dilution liquid, which is directly and evenly sprayed on the leaf blade. Requires edge spray side turn, generally 1 kg of pigment dilution can spray 10 kg of leaves, so after the spray of a good mulberry leaf can be used directly to feed silkworms.

Third, the solution soaking method. The silkworm body is soaked in a solution obtained by polymerizing a diazonium salt of a pigment, a dye, and an intermediate thereof with a monomer of an addition polymer, so that the pigment enters the silkworm body through a valve, passes through the blood and reaches the silk gland, In the end, it is colored. Specifically, the 4 silkworms are immersed in an aqueous solution of 0.2-0.4% copper phthalocyanine blue (or green) oxidized heavy salt (or diazonium salt of astragalus, sulfonium blue, or diazonium salt of sulfur dye) , every 8 hours, every 3 seconds.

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