Environment-friendly silk degumming method

A silk degumming and environmental protection technology, applied in the field of silk processing, can solve the problems of reducing silk quality, environmental pollution, and difficult operation, and achieve the effects of avoiding environmental pollution, improving degumming effect, and increasing degumming rate

Inactive Publication Date: 2017-10-20
HEFEI JUFENG THROWING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Silk is the lightest, softest and thinnest natural fiber in nature. It is one of the earliest animal fibers used by humans. It is light and slender. Weaving various silks and satins and knitwear, and used in the fields of industry, national defense and medicine; after silkworm cocooning, the silkworm cocoon is prepared into silk requires a degumming process, the current traditional degumming method is to add chemical reagents and then cook at high temperature, The waste water produced contains a lot of protein and fat, which causes serious pollution to the environment, and high-temperature cooking needs to strictly control the temperature and time of cooking, otherwise the quality of silk will be significantly reduced and the operation will be difficult. Therefore, a simple and environmentally friendly silk Degumming method

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] A kind of environment-friendly silk degumming method, comprises the following steps:

[0020] (1) Soaking: Place the silk to be degummed in distilled water at a temperature of 50~55°C. The distilled water just immerses the silk, and soaks at a constant temperature for 8 hours to avoid the combination of metal ions in the water and silk protein, which will cause the silk to become dark in color, which will weaken after full soaking. The binding ability of sericin to silk fibroin improves the effect of degumming and soaks silk;

[0021] (2) Enzymolysis: adjust the pH of the soaked silk to 9.6~9.9, add lipase, mix well, and enzymolyze at a constant temperature of 42°C for 150 minutes to decompose the oil and wax components in the silk, avoid high-temperature cooking, and save energy. Then adjust the pH to 3.6~3.7, add bromelain, enzymolyze at a constant temperature of 46°C for 120 minutes, heat to 80~85°C, and keep warm for 15 minutes. Used in combination with surfactants...

Embodiment 2

[0032] A kind of environment-friendly silk degumming method, comprises the following steps:

[0033] (1) Soaking: Put the silk to be degummed in distilled water at a temperature of 50~55°C. The distilled water just immerses the silk, and soaks at a constant temperature for 9 hours to avoid the combination of metal ions in the water and silk protein, which will cause the silk to become dark in color, which will weaken after full soaking. The binding ability of sericin to silk fibroin improves the effect of degumming and soaks silk;

[0034] (2) Enzymolysis: adjust the pH of the soaked silk to 9.6~9.9, add lipase, mix well, and enzymolyze at a constant temperature of 43°C for 150 minutes to decompose the oil and wax components in the silk, avoid high-temperature cooking, and save energy. Then adjust the pH to 3.6~3.7, add bromelain, enzymolyze at a constant temperature of 47°C for 120 minutes, heat to 80~85°C, keep warm for 20 minutes, and use enzyme preparations of different pH...

Embodiment 3

[0045] A kind of environment-friendly silk degumming method, comprises the following steps:

[0046] (1) Soaking: Put the silk to be degummed in distilled water at a temperature of 50~55°C, the distilled water just immerses the silk, and soak at a constant temperature for 10 hours to avoid the combination of metal ions in the water and silk protein, which will cause the silk to become dark in color, which will weaken after full soaking The binding ability of sericin to silk fibroin improves the effect of degumming and soaks silk;

[0047] (2) Enzymolysis: adjust the pH of the soaked silk to 9.6~9.9, add lipase, mix well, and enzymolyze at a constant temperature of 44°C for 160 minutes to decompose the oil and wax components in the silk, avoid high-temperature cooking, and save energy. Then adjust the pH to 3.6~3.7, add bromelain, enzymatically hydrolyze at a constant temperature of 48°C for 130 minutes, heat to 80~85°C, and keep warm for 20 minutes. Used in combination with s...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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PUM

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Abstract

The invention mainly relates to the technical field of silk processing, and discloses an environment-friendly silk degumming method, which includes immersion, enzymolysis, fermentation and washing. The method is simple, conditions are mild, high temperature and high pressure are not needed, energy is saved, the method is suitable for batch processing, the degumming rate can reach 89.3 percent, obtain silk is fine and smooth, the color is bright and white-yellow, and economic income can be increased by 12.7 percent. pH of immersed silk is regulated to be alkaline, lipase is added to decompose grease and wax components in the silk, high-temperature cooking is avoided, so that energy is saved, pH is then regulated to be acidic, bromelain is added, and enzymic preparations with different pHs are sequentially used for enzymolysis. The conventional joint use of alkaline protease and surfactant is changed, the environment is protected, soluble impurities under different pHs are sufficiently removed, sericin and remaining fat are decomposed, and the silk degumming rate is increased.

Description

technical field [0001] The invention mainly relates to the technical field of silk processing, in particular to an environment-friendly silk degumming method. Background technique [0002] Silk is the lightest, softest and thinnest natural fiber in nature. It is one of the earliest animal fibers used by humans. It is light and slender. Weaving various silks and satins and knitwear, and used in the fields of industry, national defense and medicine; after silkworm cocooning, the silkworm cocoon is prepared into silk requires a degumming process, the current traditional degumming method is to add chemical reagents and then cook at high temperature, The waste water produced contains a lot of protein and fat, which causes serious pollution to the environment, and high-temperature cooking needs to strictly control the temperature and time of cooking, otherwise the quality of silk will be significantly reduced and the operation will be difficult. Therefore, a simple and environment...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01C3/02
CPCD01C3/02
Inventor 王洪喜
Owner HEFEI JUFENG THROWING
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