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A kind of preparation method of cotton stalk fiber

A cotton stalk skin and fiber technology, which is applied in the field of cotton stalk skin fiber preparation, can solve the problems of complex process, high alkali consumption, long time, etc., and achieves the effects of high degumming rate, high fiber performance and small fiber damage.

Active Publication Date: 2015-12-30
重庆新锐科技服务有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are also many people who have taken a positive step in using cotton stalks as textile materials, but the methods they use have the disadvantages of taking too long and using too much alkali. For example, in the patent ZL94113220.X, the processing time takes about a week. The processing time in patents 200510034201.4 and 200610036594.7 also needs about 3-4 days, which brings many unfavorable factors to the application of cotton stalk fiber in weaving.
Although the processing time of patents 200710066829.1 and 200710066830.4 is relatively reduced, the methods they use still have disadvantages such as complicated procedures and high energy consumption.

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

[0023] The cotton stalk skin is removed, tied, and caged, and then soaked in sulfuric acid solution at a bath ratio of 1:10, in which the concentration of sulfuric acid is 5g / L, treated at room temperature for 20 minutes, and then heated at 1°C per minute Heat to 40°C for 10min, then heat to 60°C at a heating rate of 1°C per minute, and then treat for 10min; after completion, wash with water to neutral and perform ultrasonic treatment for 15min, but then soak the cotton stalk skin in a sulfuric acid solution. The ratio is 1:10, where the concentration of sulfuric acid is 3-5g / L, and the temperature rise rate is 1°C per minute to 40°C for 20 minutes. Followed by scouring, the concentration of hydrogen peroxide is 30% hydrogen peroxide 35g / L, sodium borohydride 3g / L, EDTA 3g / L, sodium pyrophosphate 1g / L, ethylene glycol monobutyl ether 2g / L, and the temperature rises at 1℃ per minute. The rate is increased to a temperature of 95-100°C, and the treatment time is 45 minutes. Furth...

Embodiment 2

[0025] The cotton stalk skin is decontaminated, tied, and caged, and then the cotton stalk skin is soaked in sulfuric acid solution at a bath ratio of 1:15, in which the concentration of sulfuric acid is 3g / L, treated at room temperature for 20 minutes, and then every minute Heating rate of 1°C to 40°C for 10min, then heating rate of 1°C per minute to 60°C, and treatment for 10min; after completion, wash with water to neutral and ultrasonic treatment for 10min, then soak the cotton stalk skin in sulfuric acid In the solution, the bath ratio is 1:15, and the concentration of sulfuric acid is 3g / L. The temperature is raised to 40°C at a temperature rise rate of 1°C per minute for 20 minutes. Followed by scouring, the concentration of hydrogen peroxide is 30% hydrogen peroxide 30g / L, sodium borohydride 2g / L, EDTA 2g / L, sodium pyrophosphate 1g / L, ethylene glycol monobutyl ether 1g / L, and the temperature rises at 1℃ per minute. The rate was raised to a temperature of 95°C, and the t...

Embodiment 3

[0027] The cotton stalk skin is removed, tied, and caged, and then the cotton stalk skin is soaked in a sulfuric acid solution at a bath ratio of 1:15, in which the concentration of sulfuric acid is 5g / L, treated at room temperature for 20 minutes, and then every minute Heating rate of 1°C to 40°C for 10min, then heating rate of 1°C per minute to 60°C, and treatment for 10min; after completion, wash with water to neutral and ultrasonic treatment for 15min, then soak the cotton stalk skin in sulfuric acid In the solution, the bath ratio is 1:15, the concentration of sulfuric acid is 5g / L, and the heating rate is 1°C per minute to 40°C for 20 minutes. Followed by scouring, the concentration of hydrogen peroxide is 30% hydrogen peroxide 40g / L, sodium borohydride 2g / L, EDTA 3g / L, sodium pyrophosphate 2g / L, ethylene glycol monobutyl ether 2g / L, and the temperature rises at 1℃ per minute. The rate is heated to a temperature of 100°C, and the treatment time is 45 minutes. Further, th...

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

A method for preparing cotton stalk fiber, wherein the method includes removing impurities, binding, caged, chemical pretreatment, supercritical carbon dioxide fluid degumming treatment, washing, dehydrating, oiling, carding, and drying, wherein the The chemical pretreatment methods include pickling - ultrasonic treatment, scouring. The obtained fiber has high degumming rate, small fiber damage and high fiber performance, which meets the requirements of modern green environmental protection.

Description

technical field [0001] The invention relates to a method for preparing natural fibers, in particular to a method for preparing cotton stalk sheath fibers. Background technique [0002] Cotton is an important economic crop in my country, and the planting area is relatively extensive. At present, cotton only uses its seed fiber as a natural raw material for textiles, and cotton stalk bark is a good bast fiber, which is the main fiber brought by planting cotton. The by-product fiber accounts for about 30-35% of the total cotton stalk. With the increasing demand for natural fibers and the shortage of natural resources, cotton stalks, as the main part of cotton, are burned or discarded. Not only has the amount of rice been fully utilized, but it has caused environmental pollution. Therefore, making full use of cotton stalk resources is of great significance to alleviate the serious shortage of cotton fibers in my country. But in the past, people often used cotton stalk husk fibe...

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
CPCD01C1/02
Inventor 耿云花
Owner 重庆新锐科技服务有限公司
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