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Treatment method for improving spinnability and whiteness of linen fiber

A flax fiber and processing method technology, which is applied in the processing field of improving the spinnability and whiteness of flax fiber, can solve the problems of large dosage of reagents, poor fiber quality and spinnability, long processing time, etc., so as to improve the spinnability, The effect of increasing fiber whiteness, reducing usage and emissions

Inactive Publication Date: 2015-07-08
XI'AN POLYTECHNIC UNIVERSITY
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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 treatment method for improving the spinnability and whiteness of flax fiber, which solves the problems of long treatment time, large amount of reagents, poor fiber quality and spinnability in the existing flax treatment process

Method used

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  • Treatment method for improving spinnability and whiteness of linen fiber
  • Treatment method for improving spinnability and whiteness of linen fiber
  • Treatment method for improving spinnability and whiteness of linen fiber

Examples

Experimental program
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Effect test

Embodiment 1

[0072] The flax fibers are pretreated to be loosened into fibers and impurities are removed at the same time; under ultrasonic conditions, the obtained fibrous flax fibers are immersed in a NaOH solution with a temperature of 50°C and a mass concentration of 10%. Alkali soaking treatment was carried out for 30 minutes, wherein, the bath ratio of flax fiber and NaOH solution was 1:10, and the frequency of ultrasonic waves was 28KHz; put the flax fiber after alkali soaking treatment into a centrifugal dehydrator for dehydration treatment for 3-5 minutes , to remove the lye; then immerse the dehydrated flax fibers into a mixture of sulfuric acid mass-volume concentration of 10g / L, sodium sulfate mass-volume concentration of 60g / L and zinc sulfate mass-volume concentration of 15g / L The acid bath treatment is carried out in the solution for 10 minutes, wherein, the bath ratio of the flax fiber to the mixed solution is 1:10, and the acid bath treatment temperature is 40-50°C; the fla...

Embodiment 2

[0077] The flax fibers are pretreated, loosened into fibers, and impurities are removed at the same time; under ultrasonic conditions, the obtained fibrous flax fibers are immersed in a NaOH solution with a temperature of 20°C and a mass concentration of 15%. Alkali soaking treatment was carried out for 45 minutes, wherein, the bath ratio of flax fiber and NaOH solution was 1:20, and the frequency of ultrasonic waves was 40KHz; put the flax fiber after alkali soaking treatment into a centrifugal dehydrator for dehydration treatment for 3-5 minutes , to remove the lye; then immerse the dehydrated flax fiber into a mixture of sulfuric acid mass-volume ratio of 15g / L, sodium sulfate mass-volume ratio of 90g / L and zinc sulfate mass-volume ratio of 20g / L Perform acid bath treatment in the solution for 10 minutes, wherein the bath ratio of the flax fiber to the mixed solution is 1:20, and the acid bath treatment temperature is 40°C; inject clean water into the acid bath treated flax ...

Embodiment 3

[0079] The flax fibers are pretreated, loosened into fibers, and impurities are removed at the same time; under ultrasonic conditions, the obtained fibrous flax fibers are immersed in a NaOH solution with a temperature of 80°C and a mass concentration of 20%. Alkali soaking treatment was carried out for 15 minutes, wherein, the bath ratio of flax fiber and NaOH solution was 1:20, and the frequency of ultrasonic waves was 28KHz; put the flax fiber after alkali soaking treatment into a centrifugal dehydrator for dehydration treatment for 3-5 minutes , to remove the lye; then immerse the dehydrated flax fibers into a mixture of sulfuric acid mass-volume ratio of 25g / L, sodium sulfate mass-volume ratio of 90g / L and zinc sulfate mass-volume ratio of 25g / L The acid bath treatment is carried out in the solution for 15 minutes, wherein, the bath ratio of the flax fiber to the mixed solution is 1:20, and the acid bath treatment temperature is 40-50°C; the flax fiber treated by the acid ...

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Abstract

The invention discloses a treatment method for improving the spinnability and the whiteness of linen fiber. The treatment method comprises the following steps of: firstly putting the linen fiber under the ultrasonic condition for alkali steeping treatment, carrying out deacidification and acid bath treatment, secondly carrying out washing and dewatering treatment, then carrying out bleaching treatment under the ultrasonic condition, and finally carrying out washing, dewatering and drying treatment. The treatment method disclosed by the invention has the advantages that for the treated linen fiber, the splitting degree is reduced, the softness and the whiteness are increased, the fiber is curled, the fiber-to-fiber cohesive force is increased, the fiber crystallization area is reduced, the microstructure of the fiber is changed; due to good-quality fiber, the spinnability of yarns can be improved, a fine and high-grade linen product with fineness and high density is developed, and good economic and social benefits are created for an enterprise; and simultaneously, the using amount and the emission of chemical agents in production can be reduced, the benefit for protecting the environment is achieved, the time of the process is shortened and the production efficiency is improved.

Description

technical field [0001] The invention belongs to the technical field of flax fiber pretreatment, in particular to a treatment method for improving the spinnability and whiteness of flax fiber. Background technique [0002] Flax fiber is one of the excellent textile raw materials, which has the advantages of coolness, breathability, easy moisture absorption and dehumidification, and antibacterial. However, because flax fiber belongs to bast fiber, besides cellulose, bast also contains non-cellulose components such as lignin, hemicellulose, pectin, carbohydrates, and pigments; only by removing these non-cellulose components in flax fiber Only in this way can the flax fiber have good water absorption, and the solution can evenly penetrate into the interior of the fiber or yarn in the subsequent spinning pretreatment, thereby improving the processing quality. The pre-spinning process of flax fiber is an essential process of flax fiber, but at present, the pre-treatment process o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06M11/38D06M11/56D06M11/55D06L1/16D06L3/02D06B21/00D06B15/00D06M101/06D06L4/13
Inventor 郭嫣张北波
Owner XI'AN POLYTECHNIC UNIVERSITY
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