Production method of cocoon silk of extra fine size

A production method and technology of fineness, which can be used in silk reeling, fiber processing, silk fiber production, etc., can solve the problems of limited development and application of ultra-fine cocoon silk, difficulty in obtaining silk fibers, etc., to shorten the sericulture cycle and reduce the incidence of disease. rate, relief effect

Inactive Publication Date: 2009-05-06
THE INST OF BIOTECHNOLOGY OF THE CHINESE ACAD OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Due to the limitation of the biological characteristics of silkworms, it is difficult to obtain silk fibers with an average of less than 1.8 dtex from common varieties of silk, which greatly limits the development and application of ultra-fine cocoon silk

Method used

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  • Production method of cocoon silk of extra fine size
  • Production method of cocoon silk of extra fine size
  • Production method of cocoon silk of extra fine size

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] 1. The Sanmian silkworm variety "SG×54A" (a breed bred by the Institute of Sericulture, Chinese Academy of Agricultural Sciences, Wu Yangchun, etc., Jiangsu Sericulture, 2004, Phase 1) was fed with fresh ripe mulberry leaves or artificial feed at 26 Raise silkworms until the second instar under the environment of -28°C;

[0027] 2, SM-I or golden deer three sleeping element (Li Rongqi etc., sericulture science, 1987,13 (2)) are mixed with sterile water (cold boiled water) the aqueous solution that concentration is 200ppm-1800ppm; The prepared aqueous solution is evenly sprayed on the front and back sides of mulberry leaves, dried in the shade and cut into an area of ​​2.5cm 2 the leaves;

[0028] 3. Continuously feed the leaves sprayed with SM-I or Sanmiansu aqueous solution to the second instar silkworms of the Sanmian silkworm variety for 24 hours; the test found that 200ppm-1800ppm of Sanmiansu aqueous solution can induce the change of Sanmian silkworm It is Dimian...

Embodiment 2

[0031] 1. The Sanmian silkworm variety "SG×54A" (a breed bred by the Institute of Sericulture, Chinese Academy of Agricultural Sciences, Wu Yangchun, etc., Jiangsu Sericulture, 2004, Phase 1) was fed with fresh ripe mulberry leaves or artificial feed at 26 The silkworms were reared at -28°C until the third instar.

[0032]2, SM-I or golden deer three sleeping element (Li Rongqi etc., sericulture science, 1987,13 (2)) are mixed with sterile water (cold boiled water) the aqueous solution that concentration is 200ppm-1800ppm; The prepared aqueous solution is evenly sprayed on the front and back sides of mulberry leaves, dried in the shade and cut into an area of ​​4cm 2 the leaves;

[0033] 3. The leaves sprayed with the superfine element aqueous solution were continuously fed to the third instar silkworms of the three-drown silkworm variety for 24 hours; it was found that 200ppm-1800ppm of the ultrafine element aqueous solution could induce the three-drown silkworms to become t...

Embodiment 3

[0036] 1. The Sanmian silkworm variety "853bai X543B" (a breed bred by the Sericulture Research Institute of the Chinese Academy of Agricultural Sciences, Wu Yangchun, etc., Jiangsu Sericulture, 2004, the first phase) was fed with fresh and ripe mulberry leaves or artificial feed at 26 Raise silkworms until the second instar under the environment of -28°C;

[0037] 2. Prepare SM-1 (Li Rongqi et al., Sericulture Science, 1987, 13(2)) with sterile water (cold boiled water) to make an aqueous solution with a concentration of 200ppm-1800ppm. Spray evenly on the front and back sides of mulberry leaves with an ultra-fine sprayer, dry in the shade and cut into 2.5cm areas 2 the leaves;

[0038] 3. The leaves sprayed with the SM-1 aqueous solution were continuously fed to the second-instar silkworms of the three-dormant silkworm variety for 24 hours. It is found that the aqueous solution with a concentration of 200ppm-1800ppm can induce three-drown silkworms to change into two-drown...

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Abstract

The invention discloses a manufacture method for ultrathin size cocoon filaments, which comprises the steps of: breeding a trimolter variety which can be stably genetic to a newly molted second larva or a newly molted third larva stage according to a normal breeding method; using an antijuvenile hormone antagonist to induce the trimolter variety in the newly molted second larva or newly molted third larva stage into a dimolter; and then carrying out normal mulberry leaf feeding, frame mounting, cocoon drying, cocoon cooking and silk reeling in turn. The manufacture method can obtain the top-grade ultra-thin size cocoon filaments with average size of 0.7 to 0.9 dtex; the thinnest can achieve 0.4dtex. The manufactured cocoon filaments have the advantages of excellent solving, thin size, small size error, good purity, high mightiness, good cohesive force, and the like. Simultaneously the method can effectively shorten the sericiculture period, which has extremely large promoting effects on adjusting the labors and improving the production efficiency of the sericiculture; besides, the method can reduce the disease rate of silkworms, reduce the harm to the production of the silkworms in summer and autumn and is beneficial to improving the safety.

Description

technical field [0001] The invention relates to a method for producing cocoon threads, in particular to a method for producing cocoon threads with extremely fine deniers, and belongs to the field of cocoon thread production. Background technique [0002] Microfiber is a type of fiber that has developed particularly rapidly in recent years. The fabric woven by it has the characteristics of cool and comfortable, sweat-absorbing and not close to the skin, anti-fouling, and strong detergency (the amount of oil removal is more than 15 times that of cotton cloth). As the name suggests, microfiber means superfine denier fiber. At present, there is no uniform definition of micro fiber in the world. The US PET Committee considers fiber fineness of 0.3dtex to 0.9dtex to be microfiber, while Italy refers to fibers below 0.5dtex as microfiber. The Chemical Fiber Industry Department of the Ministry of Textile Industry of my country has made the following definitions for ultrafine fiber...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K67/04A23K1/16A23K1/18D01B7/00D01B7/04A23K10/30A23K20/184A23K50/90
Inventor 舒惠国张志芳李轶女陈天俊门炜沈桂芳
Owner THE INST OF BIOTECHNOLOGY OF THE CHINESE ACAD OF AGRI SCI
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