Silk degumming method

A silk degumming and silk technology, applied in the field of silk degumming, can solve problems such as unsatisfactory effect of silk enzyme degumming and degumming, achieve good degumming effect, and ensure the effect of not being damaged

Inactive Publication Date: 2017-02-22
广西江缘茧丝绸有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a method for silk degummi...

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] This silk degumming method of the present embodiment comprises the following steps:

[0015] A. Inject water into the training tank, put in silk, heat to 98°C, and keep warm for 20 minutes;

[0016] B. After adjusting the water temperature to 95°C, add 1.2g / L soda ash and keep it warm for 5 minutes;

[0017] C. Lower the water temperature to 40°C, add 2709 alkaline protease 2g / L, and use 28KHz ultrasonic stirring to hydrolyze for 40min under the condition of pH 9.8;

[0018] D. Wash with water at 60°C for 30 minutes, then wash with cold water.

[0019] The activity of 2709 alkaline protease in this example is 100,000 u / g.

Embodiment 2

[0021] This silk degumming method of the present embodiment comprises the following steps:

[0022] A. Inject water into the training tank, put in silk, heat to 99°C, and keep warm for 15 minutes;

[0023] B. After adjusting the water temperature to 96°C, add 1g / L soda ash and keep it warm for 8 minutes;

[0024] C. Lower the water temperature to 43°C, add 2709 alkaline protease 1.2g / L, and use 26KHz ultrasonic stirring to hydrolyze for 50min under the condition of pH 9.6;

[0025] D. Wash in water at 65°C for 20 minutes, then wash in cold water.

[0026] The activity of 2709 alkaline protease in this example is 150,000 u / g.

Embodiment 3

[0028] This silk degumming method of the present embodiment comprises the following steps:

[0029] A. Inject water into the training tank, put in silk, heat to 100°C, and keep warm for 10 minutes;

[0030] B. After adjusting the water temperature to 97°C, add 0.8g / L soda ash and keep it warm for 10 minutes;

[0031] C. Lower the water temperature to 45°C, add 1g / L 2709 alkaline protease, and use 24KHz ultrasonic stirring to hydrolyze for 60min under the condition of pH 9.5;

[0032] D. Wash in water at 70°C for 15 minutes, then wash in cold water.

[0033] The activity of 2709 alkaline protease in this example is 200,000 u / g.

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Abstract

The invention discloses a silk degumming method, and relates to the technical field of silk processing. The silk degumming method comprises the following steps: A, injecting water in a refining tank, putting silk in the refining tank, heating to 98 to 100 DEG C, and keeping warm for 10 to 20 minutes; B, after regulating the water temperature to be 95 to 97 DEG C, adding 0.8 to 1.2 g/L of sodium carbonate, and keeping warm for 5 to 10 minutes; C, reducing the water temperature to be 40 to 45 DEG C, adding 1 to 2 g/L of 2709 alkaline protease, and stirring and hydrolyzing for 40 to 60 minutes under the condition that the pH (Potential of Hydrogen) is 9.5 to 9.8; D, washing for 15 to 30 minutes under the temperature of 60 to 70 DEG C, and then washing by cold water. According to the silk degumming method disclosed by the invention, the problem of an undesirable degumming effect of existing silk enzyme degumming is solved.

Description

technical field [0001] The invention relates to the technical field of silk processing, in particular to a silk degumming method. Background technique [0002] Silk is composed of silk fibroin and sericin coated on the surface of silk fibroin. Sericin accounts for about 25% of the total weight of silk. Sericin protects silk fibroin, but sericin will affect the luster and feel of silk. It will affect dyeing and bring certain difficulties to subsequent processing. Therefore, degumming is an important link in silk processing technology. The quality of degumming has a great impact on the quality of silk. At present, the silk degumming method that is widely used and has a good effect is enzyme degumming. It has the advantages of less procedures, short time, energy saving, and environmental protection. Enzyme degumming has little damage to silk, and the degumming is more uniform. Silk feels soft, and enzymatic degumming is to catalyze the decomposition of peptide bonds at specifi...

Claims

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Application Information

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IPC IPC(8): D01C3/02
CPCD01C3/02
Inventor 周时庆刘再茂陆昌存张同洪梁华芳
Owner 广西江缘茧丝绸有限公司
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