Processing method of long hemp

A treatment method, a hemp growing technology, is applied in the direction of mechanical treatment, fiber treatment, and chemical method to produce bast fibers, etc., to achieve the effect of increasing economic value, improving dyeing property, and simple method

Active Publication Date: 2012-12-19
YINGKOU XINYI TEXTILE
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Problems solved by technology

[0004] In view of the 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 hemp growing hemp with good degumming effect, to solve the practical problems existing in the existing method
Solve the problems existing in existing processing methods

Method used

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Embodiment Construction

[0045]The long hemp is torn off, loosened and removed on the mixed hemp humidifier. Finally, roll it into strips for later use. Then put the processed strips and rolled fibers into the cooking hemp cages, about 200 kilograms per cage. Use a sky crane to hoist the fiber-filled hemp cage into the high-temperature and high-pressure cooking tank. Pour the sodium hydroxide, hydrogen peroxide, and oxygen bleaching stabilizer treatment solution prepared in the auxiliary tank into the cooking hemp tank. Cover and seal and heat up to 130°C. The cooking time is 2 hours. The sodium hydroxide content in the cooking liquid is 8g / L, the hydrogen peroxide content is 6g / L, and the oxygen bleaching stabilizer content is 2g / L. After the hemp is cooked, the temperature is lowered and the pressure is discharged, the waste water is discharged into the No. 1 sewage treatment pool. Then perform a detergent wash. The detergent dosage is 2g / L, and the water consumption is a bath ratio of 1:10. ...

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Abstract

The invention provides a processing method of long hemp, and relates to a method for processing the hemp fibers which are the materials separated from hemp stalk bark. The processed fibers can be blended with cotton, wool and cashmere fibers to produce fine and extra-large hemp / cotton and hemp / wool blended yarns. The method comprises the following technical steps of: mechanical opening and impurity removing, chemical degumming processing, mechanical dehydrating and degumming processing, secondary chemical degumming processing and post-degumming processing. The method is simple, 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 3500Nm; and the fiber main body is 37 to 43mm 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 long hemp; and moreover, the waste water produced in the production is easily purified; and some purified waste water can be recycled. The processed waste water has no pollution to the environment. The method is an ideal processing method of the long hemp.

Description

technical field [0001] The invention relates to a method for processing hemp fibers obtained after hemp stalks are separated. The fibers obtained after treatment can be blended with cotton, wool and cashmere fibers to produce fine hemp / cotton and hemp / wool blended yarns. Background technique [0002] As an ecological textile raw material, hemp has been widely used in the production of high-grade fabrics. Because the textiles containing hemp fiber not only have good air permeability, moisture absorption and moisture release, but also have natural antibacterial health care, anti-ultraviolet radiation and sound absorption and wave absorption functions. At present, there are two types of separation of hemp fibers from hemp stalks: separation after retting and direct separation without retting. The hemp long hemp involved in the present invention is the hemp directly separated without retting. During the separation process of the hemp bark, two kinds of hemp fiber products are ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01C1/02D01B1/10
Inventor 李军李茉茹魏东赵文伟张金秋于莉莉王洪金董博
Owner YINGKOU XINYI TEXTILE
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