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Processing method of secondary hemp fibers

A treatment method and crude fiber technology, applied in the direction of chemical post-treatment, fiber treatment, mechanical treatment, etc. of fibers, to achieve soft hand feeling, increase economic value, improve spinnability and colorability

Active Publication Date: 2012-12-19
YINGKOU XINYI TEXTILE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] For above-mentioned situation, the purpose of the present invention is to provide a kind of not only economical but also convenient, and the processing method of the hemp dicrude fiber with good degumming effect, to solve the practical problem that existing method exists

Method used

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Examples

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Embodiment Construction

[0041]Tear off, loosen and remove impurities on the mixed hemp humidifier. The treated fiber is packed into boiled hemp cages, 200 kg per cage. The liquor ratio is 1:10. Use a sky crane to hoist the fiber-filled hemp cage into the high-temperature and high-pressure cooking tank. Pour the biological enzyme treatment solution prepared in the auxiliary tank into the sesame cooking tank. Cover and seal. Warm the biological enzyme treatment liquid in the tank to 55°C. The processing time was 40 minutes. The content of biological enzyme 301L preparation in the treatment liquid is 2g / L, and the content of non-ionic penetrant FK-ST20 is 4g / L. After the biological enzyme pretreatment is completed, the wastewater is returned to the No. 1 sewage treatment pool. Then the hemp in the tank is washed with water, the water temperature is 80°C, and the washing time is 15 minutes. After washing, the waste water is put back into No. 2 sewage treatment pool. Then carry out chemical degummi...

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Abstract

The invention provides a processing method of secondary hemp fibers, and relates to a method for processing the secondary hemp fibers which are the materials separated from hemp stalk bark. The method adopts the combination of bio-enzyme and chemical and mechanical degumming. The method comprises the following technical steps of: mechanical opening and impurity removing, bio-enzyme degumming and preprocessing, chemical degumming processing, mechanical dehydrating and degumming processing, and post-degumming processing. According to the method, the secondary hemp fibers are processed through the way in the combination of bio-enzyme and chemical and mechanical degumming. The method is simple in technology and easy to carry out. Over 95% of pectin, lignin and waxiness in the fibers can be removed via the method. The processed fibers have soft handfeel and the separation degree over 2000Nm, and the fiber main body is 33 to 40mm in length, thus, the spinnability and the stainability of the fibers can be greatly improved. The processing method effectively increases the economic value of the secondary hemp fibers; and moreover, as the bio-enzyme preprocessing is firstly adopted in the production, the harmful components in the waste water produced by the chemical processing have low contents and can be easily purified. The method is an ideal processing method of the secondary hemp fibers.

Description

technical field [0001] The invention relates to a method for processing the hemp bicrude fiber, that is, the separated and fallen matter of the hemp bark. The fiber obtained after treatment can improve its spinnability and colorability, and is used to produce fine hemp / cotton blended yarn. Background technique [0002] As an ecological textile raw material, hemp has been widely used in the production of high-grade fabrics. Because the fabric containing hemp fiber not only has good air permeability, moisture absorption and moisture release, but also has natural antibacterial health care, anti-ultraviolet radiation and sound absorption and wave absorption functions. At present, the original microbial degumming method is still used to isolate hemp fiber from hemp stalk, mainly natural retting method. After marijuana is harvested, it must go through preliminary processing processes such as retting and stripping. During the separation process of hemp stems, two kinds of hemp f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01C1/00D01B1/10C12S3/06
Inventor 李军张金秋于莉莉李茉茹赵文伟王洪金杨雨涛张波
Owner YINGKOU XINYI TEXTILE
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