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Method of preparing textile fabric by degumming environment-friendly type crude hemp

An environmentally friendly, raw hemp technology, applied in the direction of chemical production of bast fibers, to achieve the effects of soft fibers, less dosage and improved production rate

Inactive Publication Date: 2009-09-02
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Wherein the patent No. is the patent of CN94103650.2, although hydrogen peroxide has been used, it also needs to use alkali

Method used

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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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Mix 1 kg of ramie raw hemp with 4 kg of acetone, and reflux and scorch at 60°C for 5 hours to obtain de-lignified hemp fibers. Immerse this treated fiber in 10 kilograms of organic degumming liquid, rise to 60 ℃ from room temperature with half an hour, handle 2 hours, take out washing, oiling, drying to obtain 650 grams of 1650 ramie fibers for textile use. Each kilogram of organic degumming liquid contains 250 grams of hydrogen peroxide, 10 grams of sodium polyacrylate, 50 grams of urea, 40 grams of carboxymethyl cellulose, and the rest is water.

Embodiment 2

[0023] Mix 1 kg of raw flax with 2 kg of methyl ethyl ketone, and scour at 120°C for 2 hours to obtain de-lignified hemp fiber. Immerse this treated fiber in 20 kg of organic degumming solution, rise from room temperature to 100°C with half an hour, process for 1 hour, take out washing, oiling, drying to obtain 720 grams of 1100 flax fibers for textile use. Each kilogram of organic degumming solution contains 100 grams of hydrogen peroxide, 100 grams of citric acid, 80 grams of urea, 10 grams of carboxymethyl cellulose, and the rest is water. Jute or kenaf.

Embodiment 3

[0025] Mix 1 kg of jute raw hemp with 3 kg of butyl acetate, and scour at 120°C for 3 hours to obtain de-lignified hemp fiber. Immerse this treated fiber in 15 kg of organic degumming solution, rise to 50 ℃ from room temperature with half an hour, handle 4 hours, take out washing, oiling, drying to obtain 790 grams of jute fiber for weaving with 750 branches. Each kilogram of organic degumming solution contains 200 grams of hydrogen peroxide, 40 grams of disodium edetate, 10 grams of urea, 70 grams of carboxymethyl cellulose, and the rest is water.

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PUM

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Abstract

The invention discloses a method for preparing textile fibers by degumming environmentally friendly raw hemp, which comprises (1) mixing an organic solvent with a mass ratio of 4:1-2:1 and raw hemp at a temperature of 60-120°C, Scouring for 2-5 hours to extract the lignin in the original hemp; (2) use the organic degumming solution of hydrogen peroxide as pectin and hemicellulose remover for the hemp fiber after delignification, and start from room temperature in half an hour Raise the temperature to 50-100°C and keep it warm for 1-4 hours to obtain hemp fiber for textile. The degumming and bleaching method of the invention is practical and effective, and the obtained hemp fiber can be used in the processing of various textiles, and high-grade lignin can be recovered at the same time, and the waste water can reach the discharge standard after treatment.

Description

technical field [0001] The invention belongs to the field of textile fiber preparation, in particular to a method for preparing textile fibers by degumming environment-friendly raw hemp. Background technique [0002] Hemp fiber is one of the important textile raw materials in my country. Hemp fiber is an extract of natural plants and belongs to green ecological textile fiber. my country is one of the countries with the richest hemp resources in the world. Its resources are very rich, the output is large, and there are more than 100 varieties of hemp, all of which have different uses in textiles. Among them, the output of ramie accounts for more than 90% of the world's total output, the output of flax ranks second in the world, and the total amount of hemp ranks the highest in the world. Because hemp fiber fabric has excellent properties such as moisture absorption, heat dissipation, cool and crisp, it is more and more familiar and favored by consumers. Linen textiles are n...

Claims

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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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D01C1/02
Inventor 郁崇文张斌章倩赵斌章悦庭
Owner DONGHUA UNIV
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