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A method for unwinding silkworm cocoon shell sericin and unwinding jar

A technology of cocoon shells and tussah silkworms, which is applied in the chemical post-treatment of fibers, textiles and papermaking, and fiber treatment. It can solve the problems of high energy consumption in high-temperature operation of unwinding equipment and difficulties in unwinding control, achieving large investment and reliable environment. The effect of controlling and reducing production costs

Active Publication Date: 2017-06-16
DALIAN YINGJIANG TUSSAH TECH SERVICE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Existing unwinding equipment has high energy consumption in high temperature operation and difficult unwinding control

Method used

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  • A method for unwinding silkworm cocoon shell sericin and unwinding jar
  • A method for unwinding silkworm cocoon shell sericin and unwinding jar

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0064] The relief tank includes a tank body 4 and an upper cover 5; an insulation layer is provided on the outside of the tank body 4 and the upper cover 5, and the insulation layer is sequentially formed from polystyrene foam 2 and glass fiber reinforced plastic fiber 3 into one body through resin curing from the inside to the outside. ; The inner wall of the tank body 4 is evenly laid with heating wires; the heating wires are corrosion-resistant polytetrafluoroethylene electric heating wires.

[0065]10 kilograms of tussah silkworm incision cocoon shells are packed into a nylon mesh bag, placed in a tank body 4 with a volume of 400 liters, and injected with a relaxing solution (the relaxing solution is composed of ammonia, urea, ethylenediaminetetraacetic acid and water, the mass concentration of ammonia 8%, the mass concentration of urea is 0.5%, the mass concentration of ethylenediaminetetraacetic acid is 2%), after being heated to 50 ℃, stop heating and keep warm for 30 ho...

Embodiment 2

[0067] 10 kilograms of tussah silkworm moth mouth cocoon shells are packed into a nylon mesh bag, placed in the tank body 4 of Example 1 with a volume of 400 liters, and injected with a relaxing solution (the relaxing solution is composed of ammonia, urea, ethylenediaminetetraacetic acid and water, The mass concentration of ammonia water is 5%, the mass concentration of urea is 0.1%, the mass concentration of ethylenediaminetetraacetic acid is 1.5%), stop heating after being heated to 55 ℃, keep warm for 24 hours, tussah moth mouth cocoon shell is loosened completely. The tussah silkworm cocoon shell in the tank completes the swelling of the cocoon layer and fully opens the joints of the thread glue while preserving the sericin. The sericin is undamaged after unwinding, and the pigment, wax, calcium oxalate, and metal ions are completely dissolved, and the cocoon shell is loose. The relief solution is collected, which can be reused and eventually collected as organic fertilizer...

Embodiment 3

[0069] The relief fluids of Embodiment Example 1 and Embodiment Example 2 are collected and used as relief fluids.

[0070] 10 kilograms of tussah silkworm cut cocoon shells are packed into a nylon mesh bag, placed in the tank body 4 of Example 1 with a volume of 400 liters, and injected with a relaxing solution (this solution is the relaxing solution collected in Example 1 or Example 2) ), stop heating after heating to 60°C, keep warm for 20 hours, and the tussah silkworm's cut cocoon shell will be completely relieved. The tussah silkworm cocoon shell in the tank completes the swelling of the cocoon layer and fully opens the joints of the thread glue while preserving the sericin. The sericin is undamaged after unwinding, and the pigment, wax, calcium oxalate, and metal ions are completely dissolved, and the cocoon shell is loose. The relief solution is collected, which can be reused and eventually collected as organic fertilizer. So as to achieve the whole process of environ...

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Abstract

The invention discloses an unwinding method and an unwinding tank capable of preserving tussah cocoon shell sericin. The unwinding method is implemented through carrying out sealed unwinding on a tussah cocoon shell for 6-200 hours at a temperature of 15-80 DEG C in an unwinding solution consisting of ammonium hydroxide, urea, an ethylenediaminetetraacetic acid and water, wherein the mass concentration of ammonium hydroxide is 1-16%, the mass concentration of the urea is 0.1-3%, and the mass concentration of the ethylenediaminetetraacetic acid is 0.1-3%. The unwinding tank comprises a tank body and an upper cover, wherein the outer sides of the tank body and the upper cover are provided with thermal insulation layers, and the thermal insulation layer is formed by the fact that a polystyrene foam and a steel fiberglass are solidified into a whole from inside to outside by a resin; and heating lines are uniformly paved on the inner wall of the tank body. Sericin after being unwound is nondestructive, pigments, waxes, calcium oxalate and metal ions are completely dissolved, cocoon shells are loosen, and the unwinding solution can be repeatedly used and finally collected as an organic fertilizer, thereby achieving an effect of environmental friendliness and zero blowdown in a whole process.

Description

technical field [0001] The invention relates to the field of tussah silkworm cocoon shell processing and the field of chemical industry, specifically a method for unwinding silkworm cocoon shell sericin preserved by chemical means and equipment. Background technique [0002] Tussah silkworm is the most common species among wild silkworms in my country, and it is also one of the characteristic resources of our country. The annual output of tussah silkworm cocoons is about 50,000 tons, accounting for more than 85% of the world's total output. Tussah silk is composed of sericin and fibroin, the protein that makes up the outer tissue of silk fibers. Accounting for 12% to 15% of the total weight, it protects and bonds the silk fibroin wrapped inside. [0003] The unwinding of tussah cocoon shells is different from that of fresh cocoons. Tussah cocoon shells are processed with silk spinning and silk quilts. The degree of unwinding requires that the cocoon layers are fully discret...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D01C3/00
CPCD01C3/00
Inventor 屈清辉
Owner DALIAN YINGJIANG TUSSAH TECH SERVICE CO LTD
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