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Flax fibre modifying method

A flax fiber, modified technology, applied in fiber processing, textile and papermaking, physical treatment, etc., can solve problems such as poor dyeability of flax fiber

Inactive Publication Date: 2005-02-23
HEILONGJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problem of poor dyeability of flax fiber, a modification method of flax fiber is provided, which greatly improves the dyeing performance of the modified flax fiber

Method used

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Examples

Experimental program
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specific Embodiment approach 1

[0004] Specific embodiment one: a kind of modification method of flax fiber, it finishes through following steps: (one) put flax fiber into the urea solution that content is 50~300 grams / liter, take out after soaking; The flax fiber is heated in a microwave oven with an output power of 300-400W for 1-4 minutes; (3) the flax fiber is heated in a microwave oven with an output power of 600-800W for 0.5-3 minutes and then taken out.

specific Embodiment approach 2

[0005] Embodiment 2: The difference between this embodiment and Embodiment 1 is that in step (1), the content of the urea solution is 50-195 g / L, preferably 100 g / L. Other steps are the same as those in Embodiment 1. This embodiment is suitable for lighter dyeing.

specific Embodiment approach 3

[0006] Embodiment 3: The difference between this embodiment and Embodiment 2 is that in step (1), the content of the urea solution is 200-300 g / L. Other steps are the same as the second embodiment. This embodiment is suitable for darker dyeing.

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PUM

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Abstract

This invention publishes the method of color flax fibre. A kind of character-change flax fibre: (1.) Put the flax fibre into 50-300g per L carbamide liquid. After endosmosis, put it out. (2) Heat the flax fibre in 300-400w micro-wave oven for 1-4 minutes. (3) Heat the flax fibre in the 600-hange the flax fibre. The color deepness can rise by 6%. (4) The flax fibre after character-change, the face will become coarse, it shows the face of some fibre molecule is cloven, and the face of other fibre molecule appears floss. So the fibre is a little loose, and it is dasy to be 800w imcro-wave oven for 0.5-3 minutes. The availability of the invention is: After character-c colored and character-change, the mechanics capability is not changed.

Description

Technical field: [0001] The present invention relates to a method for modifying flax fibers to facilitate dyeing. Background technique: [0002] Flax fiber has the defects of poor dyeability, which are manifested as low dye uptake rate, low color fixation rate and poor color fastness. The internal reasons for the poor dyeability of flax fibers are: the fibers have high crystallinity, high degree of orientation, and small inclination angle. This densely arranged aggregate structure makes it difficult for dyes to penetrate during dyeing, resulting in low dye uptake. This problem has not been solved at present, and the flax fiber dyeing of deep color needs twice dyeing just can reach required color depth, causes technological process to be long, and economic benefit declines. Invention content: [0003] In order to solve the problem of poor dyeability of the flax fiber, a modification method of the flax fiber is provided, so that the dyeing performance of the modified flax f...

Claims

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Application Information

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IPC IPC(8): D06M10/04
Inventor 白续铎孙虹雁姜宪凯
Owner HEILONGJIANG UNIV
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