Biotreatment method for flax short-fibre

A biological treatment, short fiber technology, applied in fiber treatment, biochemical fiber treatment, plant fiber, etc., can solve the problems of decreased strength, poor spinnability and dyeability, and damage to flax staple fibers.

Inactive Publication Date: 2006-03-29
黑龙江圆宝纺织股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Aiming at the problems of severe fiber damage, decreased strength, and poor spinnability and dyeability in the existing treatment methods for flax short fibers, the pres...

Method used

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Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach 1

[0004] Specific Embodiment 1: This embodiment is a biological treatment method of flax short fiber, which includes the following steps: a. enzyme-catalyzed degradation → b. hot water dissolution → c. extraction → d. hot water dissolution → e. dehydration → f. Softness → g. Dehydration → h. Drying → i. Fiber mechanical splitting;

[0005] The process of "a. Enzyme-catalyzed degradation" is as follows: the temperature of soft water is raised to 15-65°C, and under the condition of PH=7-9.5, 301L of refining enzyme is added, and the amount of refining enzyme 301L accounts for 0.5% of the weight of the hemp. % to 3%; then add hemp, soak for 1 to 8 hours, and then drain; the temperature of the water should be kept at 15 to 65°C during the soaking process;

[0006] Specifically, the enzyme-catalyzed degradation process can be divided into the following three steps:

[0007] (1) Enzyme activation: keep the water temperature at 15-65°C under the condition of PH = 7-9.5, add 301L of re...

specific Embodiment approach 2

[0016] Specific embodiment two: the water temperature during "b. hot water dissolving" and "d. hot water dissolving" in this embodiment is 50-100°C, and the water used for hot water dissolving can be soft water or hard water. The process is washing and rubbing. The purpose of dissolving in hot water in step b is to remove some impurities on the hemp and dissolve some symbiotic degradation products; the dissolving in hot water in step d has the same purpose, but the process of "e. dehydration" is directly performed after "dissolving in hot water" If it is dissolved in hot water, it will reach the pH-7 of the water solution. Others are the same as in the first embodiment.

specific Embodiment approach 3

[0017] Specific embodiment three: the difference between this embodiment and specific embodiment two is that the process of "dissolving in cold water" is added between the process of "d. dissolving in hot water" and "e. dehydrating". 40°C, it can be soft water or hard water. Cold water dissolution has the same purpose as hot water dissolution, but adding cold water dissolution process can save energy consumption and reduce costs. Owing to adding " cold water dissolving " process after " hot water dissolving ", so the pH value of water solution after hot water dissolving can needn't be controlled, but then will reach the pH=7 of water solution after cold water dissolving.

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Abstract

A biological treatment method of flax staple fibre relates to a method for preparing flax staple fibre. Said method includes the following steps: a). enzyme catalysis degradation; (b). dissolution by using hot water; (c). extraction; (d). dissolution by hot water; (e). dewatering; (f). softening; (g). dewatering; (h). oven-drying; and (i). mechanically-splitting fibre.

Description

technical field [0001] The invention relates to a method for preparing short flax fibers from hemp. Background technique [0002] At present, the processing methods of flax short fiber are mainly mechanical method and chemical degumming method, and the mechanical method is widely used now. The fibers processed by mechanical methods cannot remove the symbiosis of flax fibers: pectin, lignin, hemicellulose, etc., the fibers are thick and hard, and the spinnability and dyeability are poor. public branch), but in actual production, except for a few high-quality raw materials, most of them can only be spun to 5 British branch (8.5 public branch), the product structure is simple, and the grade is low; A large amount of chemicals such as caustic soda, sodium hypochlorite, etc. have to be used for intensive scouring and bleaching. While removing a large amount of fiber symbionts and impurities such as hemp husks and hemp dust, the fabric fibers suffer heavy losses and their strengt...

Claims

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Application Information

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IPC IPC(8): D06M16/00D06M101/04
Inventor 邢玉红
Owner 黑龙江圆宝纺织股份有限公司
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