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Cocoon cooking and silk opening processing method

A processing method and cocoon cooking technology, which is applied in the field of cocoon boiling and cotton processing, can solve the problems of increasing the burden of wastewater treatment, unfavorable manual preparation of cotton bags, and damage to silk fibroin components.

Pending Publication Date: 2020-10-30
徐州光彩丝绵制品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the cocoon cooking process is not adequately treated, the cocoon silk in the cocoon layer will not be easily loosened from each other, which is not conducive to the manual preparation of cocoon caps and cotton pockets, but will also cause a high rate of residual glue in the silk floss; Too high and too alkaline, while fully removing sericin, it is also easy to cause damage to silk fibroin components, which seriously affects the product quality of silk floss
The concentration of sericin in the waste liquid discharged from the traditional cocoon cooking process is high, and the chemical oxygen demand (COD value) of the waste liquid is high, which also increases the burden of wastewater treatment to varying degrees.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Embodiment 1 A kind of boiled cocoon making cotton processing method, comprises the following steps:

[0022] A. Silkworm cocoon light alkali loosening pretreatment: configure soda ash solution, soak the silkworm cocoons after cocoon drying in soda ash solution; the treatment conditions are: the mass concentration of soda ash is 0.2 g / L, the bath ratio is 1: 20, dipping The treatment temperature is 95°C, and the immersion treatment time is 30 minutes;

[0023] B. Bio-enzymatic cocoon cooking process: immerse the silkworm cocoons treated in step A in a mixed solution of protease and lipase for enzyme treatment; the treatment conditions are: the protease is Savinase protease, the dosage is 1 U / mL, and the lipase is Alkaline lipase, the dosage is 0.5 U / mL, the pH value is 8, the liquor ratio is 1:20, the treatment temperature is 50°C, and the treatment time is 1 h;

[0024] C. Cocoon peeling and cotton processing: Wash the silkworm cocoons treated in step B in hot water a...

Embodiment 2

[0030] Embodiment 2 A processing method for cocoon boiling and flossing, comprising the following steps:

[0031] D. Configure soda ash solution, soak the cocoons after drying in soda ash solution; the treatment conditions are: the mass concentration of soda ash is 0.5 g / L, the bath ratio is 1: 40, the dipping treatment temperature is 98 ° C, and the dipping treatment time 45 minutes;

[0032] E. Soak the silkworm cocoons treated in step D in a mixed solution of protease and lipase for enzyme treatment; the treatment conditions are: using Savinase protease, the dosage is 4 U / mL; using alkaline lipase, the dosage is 1 U / mL mL, the pH value is 9, the liquor ratio is 1:40, the treatment temperature is 55°C, and the treatment time is 1.5 h;

[0033] F. Fully wash the silkworm cocoons treated in step E in hot water at 55°C, then manually peel the cocoons to obtain cocoon caps, unravel the cocoon caps, process the cotton pockets required for silk quilts, and finally dry them to rem...

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Abstract

The invention discloses a cocoon cooking and silk opening processing method. The processing method comprises the following steps: firstly performing impregnation loosening treatment on mulberry silkworm cocoons in a low-concentration a soda ash solution; then performing enzyme treatment on the mulberry silkworm cocoons in a mixed solution of protease and lipase; secondly, after washing the mulberry silkworm cocoons with water, peeling the cocoons to obtain cocoon caps; then opening the cocoon caps and then processing the opened cocoon caps into silk pockets; and finally, performing drying. Themethod can realize cocoon cooking processing under mild conditions; a cocoon shell structure is loosened, and thus, the removal effect of sericin components in mulberry silkworm cocoons is enhanced,the chemical oxygen demand (COD) value of cocoon cooking waste liquid is reduced, and the processing of floss silk products based on energy saving and emission reduction is realized.

Description

technical field [0001] The invention relates to the technical field of textile dyeing and finishing, in particular to a cocoon boiling and spinning processing method. Background technique [0002] The structure of mulberry silk is composed of silk fibroin and sericin, among which the molecular structure of silk fibroin is arranged neatly and has a good linear structure; the sericin component is located in the outer layer of mulberry silk, mainly composed of spherical protein structure, and the molecular chains are arranged irregularly. The interaction force is small, and it is easy to dissolve and remove under high temperature alkaline conditions. At present, mulberry silk is used for the preparation of real silk clothing on the one hand, and is used for silk processing on the other hand. In the processing of silk quilts, silkworm cocoons must be boiled, cocoon peeled and cotton-spun in sequence, and then the silk floss required for silk quilts can be obtained. Among them,...

Claims

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Application Information

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IPC IPC(8): D01C3/02
CPCD01C3/02
Inventor 张建勇陈厚梅王平
Owner 徐州光彩丝绵制品有限公司
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