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Modification method for China hemp fibers

A hemp fiber and modification technology, which is applied in the field of hemp fiber modification, can solve the problems affecting the application of hemp fiber and poor spinnability, so as to improve the utilization value, reduce the generation of by-products, and increase the grafting rate Effect

Inactive Publication Date: 2018-12-07
SUZHOU TIANAO SPECIAL EMBROIDERY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the distribution of hemp fiber components, its spinnability is poor, which affects the application of hemp fiber

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] (1) Crush the hemp and soak it in water for 2 hours, the ratio of solid to liquid is 1:10 (g / mL), then add sodium alkyl sulfonate (penetrating agent) with 0.65% weight of hemp fiber, and perform ultrasonic treatment with an ultrasonic power of 800W , ultrasonic frequency 30kHz, temperature 55°C, ultrasonic time 25min, after treatment, filter out water and dry, then immerse in 4wt% sodium carbonate solution, soak at 60°C for 2h, take it out and rinse with deionized water until neutral, and let it dry Dried to obtain hemp fiber;

[0023] (2) Make a solution of silane coupling agent KH550 and ethanol according to the volume ratio of 1:5, put the hemp fiber dried in step (1) into a high-speed mixing mixer, and spray the coupling agent solution while stirring, until The coupling agent solution soaks the hemp fiber fully and evenly, takes it out, and dries it at 105°C for 30 minutes;

[0024] (3) Soak the hemp fiber treated in step (2) with 0.2mol / L acetone solution for 1 ho...

Embodiment 2

[0028] (1) Crush hemp and soak in water for 2 hours, the ratio of solid to liquid is 1:10 (g / mL), then add sodium alkyl sulfonate (penetrating agent) with 0.35% weight of hemp fiber, and perform ultrasonic treatment with ultrasonic power of 800W , the ultrasonic frequency is 50kHz, the temperature is 25°C, and the ultrasonic time is 55min. After treatment, the water is filtered off and dried, then immersed in 4wt% sodium carbonate solution, soaked at 60°C for 2h, taken out and rinsed with deionized water until neutral, and aired Dried to obtain hemp fiber;

[0029] (2) Make a solution of silane coupling agent KH550 and ethanol according to the volume ratio of 1:5, put the hemp fiber dried in step (1) into a high-speed mixing mixer, and spray the coupling agent solution while stirring, until The coupling agent solution soaks the hemp fiber fully and evenly, takes it out, and dries it at 105°C for 30 minutes;

[0030] (3) Soak the hemp fiber treated in step (2) with 0.2mol / L ac...

Embodiment 3

[0034] (1) Crush the hemp and soak in water for 2 hours, the ratio of solid to liquid is 1:10 (g / mL), then add sodium alkylsulfonate (penetrant) with 0.6% weight of the hemp fiber, and perform ultrasonic treatment with an ultrasonic power of 800W , ultrasonic frequency 35kHz, temperature 50°C, ultrasonic time 30min, after treatment, filter out water and dry, then immerse in 4wt% sodium carbonate solution, soak at 60°C for 2h, take out and rinse with deionized water until neutral, and dry Dried to obtain hemp fiber;

[0035] (2) Make a solution of silane coupling agent KH550 and ethanol according to the volume ratio of 1:5, put the hemp fiber dried in step (1) into a high-speed mixing mixer, and spray the coupling agent solution while stirring, until The coupling agent solution soaks the hemp fiber fully and evenly, takes it out, and dries it at 105°C for 30 minutes;

[0036] (3) Soak the hemp fiber treated in step (2) with 0.2mol / L acetone solution for 1 hour, take it out and...

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Abstract

The invention provides a modification method for China hemp fibers, including the steps of: (1) adding water to soak the China hemp fibers, adding alkyl sodium sulfonate and performing ultrasonic treatment, filtering the mixture to remove water, drying the China hemp fibers, and soaking the China hemp fibers in a Na2CO3 solution, washing the China hemp fibers with deionized water, and air-drying the China hemp fibers; (2) feeding the China hemp fibers into a high-speed mixing and stirring machine, spraying a coupling agent solution thereinto, and drying the China hemp fibers; (3) soaking the treated China hemp fibers in the step (2) in an acetone solution, filtering the mixture to dry, mixing the China hemp fibers with deionized water, and adding a 2-methyl-5-vinyl-pyrridine solution withuniform mixing; (4) directly moving the mixed reaction liquid in the step (3) into a sealed glass container, feeding nitrogen gas and irradiating the liquid under electron beam; (5) moving out the irradiated fibers, and washing and drying the fibers. The modified China hemp fibers has excellent spinnability and is improved in use value.

Description

technical field [0001] The invention relates to the technical field of textiles, in particular to a method for modifying hemp fibers. Background technique [0002] In recent years, with the continuous development of the economy, people have higher and higher requirements for clothing, and the requirements for clothing are no longer limited to a single function. People are more pursuing individualized, high-grade, trendy and diverse fabrics. While pursuing the aesthetic appearance of fabrics, people also pay attention to the wearing experience brought by fabrics. People pay more and more attention to the softness, comfort, skin-friendliness and other functions of fabrics. In fiber fabrics, hemp fiber is the softest of all kinds of fibers, and its fineness is only one third of that of ramie, which is equivalent to that of cotton and hemp. Hemp fiber mainly contains cellulose and some non-cellulose substances, including hemicellulose, lignin, pectin, water-soluble matter, lip...

Claims

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Application Information

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IPC IPC(8): D06M14/22D06M13/513D06M10/08D06M11/76D06M101/06
CPCD06M10/08D06M11/76D06M13/513D06M14/22D06M2101/06
Inventor 李德喜陈宗明
Owner SUZHOU TIANAO SPECIAL EMBROIDERY CO LTD
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