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Extraction method of rice-wheat straw fibre for spinning

A technology of straw fiber and extraction method, which is applied in the chemical post-treatment of fiber, fiber treatment, textiles and papermaking, etc., can solve environmental pollution and other problems, and achieve the effect of low energy consumption, low cost and easy operation

Inactive Publication Date: 2009-12-30
WUHAN TEXTILE UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it has the problem of serious pollution to the environment
Therefore, using chemical methods alone to degumming is not an ideal method

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] A method for extracting rice straw or wheat straw fibers for spinning, comprising the steps of:

[0026] 1), steam explosion pretreatment: cut the stalk into sections after air-drying, each section length is 100mm, and the moisture content is controlled at 17% (mass);

[0027] 2) Put the pretreated straw into the steam explosion tank, the steam explosion treatment conditions: the pressure is 5.0Pa, the temperature is 200°C, and the time is 7min;

[0028] 3), adjust the moisture content of the straw after the steam explosion treatment to 80% (mass), supply nutrients glucose and urea, and obtain the steam explosion straw mixture; wherein, the added quality of glucose is 0.3% of the quality of the straw with a moisture content of 80%, The quality of adding urea is 0.2% of the quality of straw with a water content of 80%;

[0029] 4), strain degumming:

[0030] ①Choose strains: choose mushroom white rot fungus as strains;

[0031] ② Pave the steam-exploded straw mixture ...

Embodiment 2

[0041] A method for extracting rice straw or wheat straw fibers for spinning, comprising the steps of:

[0042] 1), steam explosion pretreatment: the stalks are air-dried and cut into sections, each section length is 70mm, and the moisture content is controlled at 14% (mass);

[0043] 2) Put the pretreated straw into the steam explosion tank, the steam explosion treatment conditions: the pressure is 1.0Pa, the temperature is 160°C, and the time is 4min;

[0044] 3), adjust the moisture content of the straw after the steam explosion treatment to 70% (mass), supply nutrients glucose and urea, and obtain the steam explosion straw mixture; wherein, the added quality of glucose is 0.2% of the quality of the straw with a moisture content of 70%, The quality of adding urea is 0.1% of the straw mass with a water content of 70%;

[0045] 4), strain degumming:

[0046] ①Choose strains: choose mushroom white rot fungus as strains;

[0047] ② Pave the steam-exploded straw mixture obtai...

Embodiment 3

[0057] A method for extracting rice straw or wheat straw fibers for spinning, comprising the steps of:

[0058] 1), steam explosion pretreatment: cut the stalk into sections after air-drying, each section length is 130mm, and the moisture content is controlled at 20% (mass);

[0059] 2) Put the pretreated straw into the steam explosion tank, the steam explosion treatment conditions: the pressure is 8.0Pa, the temperature is 250°C, and the time is 10min;

[0060]3), adjust the water content of the straw after the steam explosion treatment to 90% (mass), supply nutrients glucose and urea, and obtain the steam explosion straw mixture; wherein, the added quality of glucose is 0.5% of the quality of the straw with a water content of 90%, The quality of adding urea is 0.3% of the straw quality with a water content of 90%;

[0061] 4), strain degumming:

[0062] ① Select strains: select Phanerochaete chrysosporium as strains;

[0063] ② Pave the steam-exploded straw mixture obtain...

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Abstract

The invention relates to a spinning straw fiber extraction method. The spinning rice and wheat straw fiber extraction method is characterized in that the method includes the following steps: 1). the steam explosion pretreatment: straws are air-dried and then are cut into segments; 2). the pretreated straws are put in a steam blasting tank; 3). nutrient glucose and urea are recharged; 4). the strain degumming: first, choosing strains: choosing mushroom white rot fungi or planerochaete chrysosporium as the strain; second, to pave the steam explosion straw mixture obtained in the third step to be 10-100mm high; third, poking the strains onto the straw piles; fourth, culturing on the culturing bed; fifth, cleaning; sixth, bleaching; 5). irradiation curing: the bleached straw fiber is irradiated with Gamma rays with the irradiation amount of 2-10kgy to obtain the radiation curing straw fiber; 6). the straw fiber is oiled; 7) the straw fiber is dried; 8) the dried straw fiber is dispersed to obtain the spinning rice and wheat straw fiber. The invention has the characteristics of environmental protection and low cost.

Description

technical field [0001] The invention relates to a method for extracting straw fibers for spinning. Background technique [0002] my country has very rich agricultural and forestry waste resources, which are widely distributed, large in quantity, various in variety and low in price, especially crop straw. In recent years, vast rural areas have burned straw in the fields, which not only wastes precious biological resources, but also seriously pollutes the environment. Transformation and utilization of plant cellulose, a huge renewable resource, to provide energy and other chemical products required by people has become a topic that many countries in the world are actively exploring. At present, there is still a lot of space for the application of straw in textiles. There are many pretreatment methods for straw resources, which can be roughly divided into physical methods, hydrothermal methods, chemical methods or biological methods. However, how to find the ideal degumming ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D01C1/00D01C1/04C12N1/14C12N1/20
Inventor 王晓广陈燕陈波志
Owner WUHAN TEXTILE UNIV
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