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Integral sisal hemp degumming process

A sisal and degumming technology, applied in the field of textile processing, can solve the problems of chemical reagents polluting the environment, high residual glue rate, and low breaking strength, and achieve the effects of using less chemical reagents, increasing the degumming rate, and reducing the residual glue 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 joint degumming process for sisal in view of the problems of low breaking strength, high residual glue rate and excessive use of chemical reagents in the prior art after degumming of sisal

Method used

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  • Integral sisal hemp degumming process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] A kind of joint degumming process of sisal, is characterized in that, comprises the following steps:

[0035] (1) Pretreatment: Flatten the harvested fresh sisal leaves and put them into a rolling machine to repeatedly and completely roll them until the sisal leaves do not come out of water, then soak them in 5% acetic acid solution at room temperature for 1.5 hours, and finally soak them After the sisal leaves are washed with clear water to PH=6.5, the cleaned sisal leaves are obtained;

[0036] (2) High-pressure alkaline cooking: take the cleaned sisal leaves and add a NaOH solution with a concentration of 8g / L, then cook for 3 hours under an environment with a steam pressure of 0.8Mpa and a temperature of 150°C, wherein the cleaned sisal leaves and NaOH solution The mass ratio is 1:4;

[0037] (3) Impurity removal: the sisal leaves after cooking are taken out and beaten and rubbed, then washed with water to remove impurities such as pectin attached to the sisal leav...

Embodiment 2

[0042] A kind of joint degumming process of sisal, is characterized in that, comprises the following steps:

[0043] (1) Pretreatment: Flatten the harvested fresh sisal leaves and put them into a rolling machine to repeatedly and completely roll them until the sisal leaves do not come out of water, then soak them in 6% acetic acid solution at room temperature for 1.7 hours, and finally soak them The final sisal leaves are washed with clear water to PH=6.6 to obtain cleaned sisal leaves;

[0044] (2) High-pressure alkaline cooking: take the cleaned sisal leaves and add a NaOH solution with a concentration of 10g / L, and then place the steam pressure at 1.0Mpa and cook for 2.8 hours under an environment of 140°C, wherein the cleaned sisal leaves and NaOH The mass ratio of the solution is 1:5;

[0045] (3) Impurity removal: the sisal leaves after cooking are taken out and beaten and rubbed, then washed with water to remove impurities such as pectin attached to the sisal leaves, a...

Embodiment 3

[0050] A kind of joint degumming process of sisal, is characterized in that, comprises the following steps:

[0051] (1) Pretreatment: Flatten the harvested fresh sisal leaves and put them into a rolling machine to repeatedly and completely roll them until the sisal leaves do not come out of water, then soak them in 7% acetic acid solution at room temperature for 2 hours, and finally soak them After the sisal leaves are washed with clear water to PH=6.7, the cleaned sisal leaves are obtained;

[0052] (2) High-pressure alkaline cooking: take the cleaned sisal leaves and add NaOH solution with a concentration of 12g / L, and then place them in an environment with a steam pressure of 1.2Mpa and a temperature of 130°C for 3 hours, wherein the cleaned sisal leaves and NaOH The mass ratio of the solution is 1:6;

[0053] (3) Impurity removal: the sisal leaves after cooking are taken out and beaten and rubbed, then washed with water to remove impurities such as pectin attached to the...

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Abstract

The invention belongs to the technical field of spinning processing, and in particular relates to an integral sisal hemp degumming process which comprises steps of pretreatment, high pressure alkali boiling, impurity removal, corona discharge treatment, fungi degradation, water washing, press drying, oil feeding, shaping and drying. With integral degumming of high pressure alkali boiling, corona discharge treatment and fungi degradation, the integral sisal hemp degumming process has effects prior to those of conventional single chemical degumming methods or mechanical degumming methods, is relatively low in content of residual gum and lignin and meets process requirements of deep processing of sisal hemp. In addition, except acetic acid and a small amount of sodium hydroxide, no other chemical reagents are used, so that a relatively small amount of pollution sewage can be discharged, and the process is a relatively green and environmental-friendly process method.

Description

[0001] 【Technical field】 [0002] The invention relates to the technical field of textile processing, in particular to a joint degumming process of sisal. [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 also m...

Claims

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Application Information

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