Preparation technique of sisal fiber

A sisal fiber and preparation technology, applied in the field of textile processing, can solve the problems of low breaking strength, excessive use of chemical reagents to pollute the environment, high residual glue rate, etc., and achieve the effects of reduced residual glue rate, easy control, and increased degumming rate

Inactive Publication Date: 2017-06-20
GUANGXI XIUMEI ZHUANGXIANG ENERGY ENVIRONMENTAL PROTECTION CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The purpose of the present invention is to provide a preparation process for sisal fiber in view of the problems of low breaking strength, high residual glue rate and environmental pollution caused by excessive use of chemical reagents in the prior art

Method used

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  • Preparation technique of sisal fiber
  • Preparation technique of sisal fiber

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] A kind of preparation technology of sisal fiber is characterized in that, comprises the following steps:

[0037] (1) Pretreatment: flatten the harvested fresh sisal leaves and put them into a roller compactor repeatedly and completely until no water comes out, soak them in 12% acetic acid solution at room temperature for 60 minutes, and finally soak the soaked sisal leaves Rinse with clear water to pH=6-7, and dry to obtain cleaned sisal leaves;

[0038](2) Corona discharge treatment: put the dried sisal fiber into a high-voltage corona discharge zone for 20 seconds, the voltage of the treatment is 8kv, and the treatment temperature is 60°C.

[0039] (3) Ultrasonic vibration: take the sisal leaves treated by corona discharge, put them into NaOH solution according to the mass ratio of sisal leaves and NaOH solution as 1:3, and ultrasonically vibrate at an ultrasonic frequency of 30KHz and an ultrasonic power of 4000W For 1 hour, the mass concentration of NaOH in the Na...

Embodiment 2

[0045] A kind of preparation technology of sisal fiber is characterized in that, comprises the following steps:

[0046] (1) Pretreatment: flatten the harvested fresh sisal leaves and put them into the rolling machine repeatedly and completely rolling until no water comes out, soak them in 13% acetic acid solution at room temperature for 50min, and finally soak the soaked sisal leaves Rinse with clear water to pH=6-7, and dry to obtain cleaned sisal leaves;

[0047] (2) Corona discharge treatment: put the dried sisal fibers into a high-voltage corona discharge zone for treatment for 23 seconds, the treatment voltage is 7kv, and the treatment temperature is 65°C.

[0048] (3) Ultrasonic vibration: Take the sisal leaves treated by corona discharge, put them into NaOH solution according to the mass ratio of sisal leaves and NaOH solution as 1:4, and ultrasonically vibrate at an ultrasonic frequency of 33KHz and an ultrasonic power of 3700W 1.3 hours, the mass concentration of Na...

Embodiment 3

[0054] A kind of preparation technology of sisal fiber is characterized in that, comprises the following steps:

[0055] (1) Pretreatment: flatten the harvested fresh sisal leaves and put them into a roller compactor repeatedly and completely until no water comes out, soak them in 15% acetic acid solution for 40 minutes at room temperature, and finally soak the soaked sisal leaves Rinse with clear water to pH=6-7, and dry to obtain cleaned sisal leaves;

[0056] (2) corona discharge treatment: put the dried sisal fiber into a high-voltage corona discharge zone for 25s, the voltage of the treatment is 6kv, and the temperature of the treatment is 70°C;

[0057] (3) Ultrasonic vibration: Take the sisal leaves after corona discharge treatment, put them into NaOH solution according to the mass ratio of sisal leaves and NaOH solution as 1:5, and ultrasonically vibrate 1.5 at the ultrasonic frequency of 35KHz and ultrasonic power of 3500W. hour, the mass concentration of NaOH in the...

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Abstract

The invention belongs to the technical field of textile processing, and particularly relates to a preparation technique of a sisal fiber. The degumming technique comprises the following steps: pretreatment, corona discharge treatment, ultrasonic oscillation, degradation by bacteria, impurity removal, secondary ultrasonic treatment, water washing, pressing, oil supply, forming and drying. By performing the corona discharge treatment, ultrasonic treatment, degradation by bacteria and secondary ultrasonic treatment on the sisal fiber, the degumming technique of sisal has better effects than the traditional single chemical degumming process or mechanical degumming process, has the advantages of lower gum residue rate and lower lignin content, and satisfies the sisal deep processing technique demands. In addition, no chemical reagent is adopted expect the acetic acid and a small amount of sodium hydroxide, so the polluted wastewater discharge is low, and thus, the technique is a green environment-friendly technological process.

Description

[0001] 【Technical field】 [0002] The invention relates to the technical field of textile processing, in particular to a preparation process of sisal fibers. [0003] 【Background technique】 [0004] Sisal (scientific name: Agave sisalana Perr.ex Engelm.), also known as pineapple hemp, Agave family Agave, is a perennial tropical hard leaf fiber crop, which originated in Mexico and is now mainly in Africa and Latin America , Asia and other places, it is a kind of hard fiber with the largest amount and the widest range in the world today. Sisal is a raw material with unique advantages in my country. It has the advantages of long fiber, tough texture, elasticity, strong tensile force, tear resistance, corrosion resistance, low temperature resistance, and little flexibility in dry and wet environments. Therefore, it is used by naval ships to make cables, the inner layer of aircraft and automobile tires, including the conveyor belt of machines, and the rope core in crane ropes is als...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01C1/00D01C1/02D01C1/04D01B1/22
CPCD01C1/00D01B1/22D01C1/02D01C1/04
Inventor 谢英健
Owner GUANGXI XIUMEI ZHUANGXIANG ENERGY ENVIRONMENTAL PROTECTION CO LTD
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