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Method and apparatus for false twiting and drawing animal fibre

An animal fiber, false twisting technology, applied in drafting equipment, textile and papermaking, spinning machines, etc., can solve the problems of high energy consumption, complexity, affecting the working environment, etc., to improve efficiency or output, improve fiber quality, The effect of increasing production

Inactive Publication Date: 2003-03-12
TIANJIN POLYTECHNIC UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this technology has the following deficiencies: First, the one-step fiber pretreatment process used cannot fully open the macromolecular linkages such as hydrogen bonds and disulfide bonds in the animal hair fiber, which is unfavorable for the subsequent wet heat stretching process and the quality Unstable; secondly, the multi-roller false-twisting stretching device adopted in this technology adopts multiple sets of belt drives, and the transmission is not stable enough under the condition of frequent changes in humid and hot conditions; at the same time, the stretching mechanism is huge and complicated, and it is inconvenient to use
The third is that the technical setting process continuously uses heat (steam or hot water) for setting, which consumes a lot of energy, and the setting effect is not ideal, and it also affects the working environment.

Method used

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  • Method and apparatus for false twiting and drawing animal fibre
  • Method and apparatus for false twiting and drawing animal fibre
  • Method and apparatus for false twiting and drawing animal fibre

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] Raw materials: pure wool tops, average fiber fineness 21.35um, average length 85.4mm, strip weight 20g / m. Add NaHSO to the 80°C aqueous solution in the bath of pretreatment device 1 3 5% (weight), ph value is 9, soaks this wool top; With 10 m / min speed, wool top is fed into the damp heat storage box, deposits 40 minutes in the storage box. Then, the wool sliver is fed into the described 6-zone wet heat stretching equipment at the same speed for wet heat stretching. The stretching process parameters are as follows: 6 zones of stretching ratio are: 1.04 / 1.3 / 1.3 / 1.04 / 1.04 / 1.04; the temperature inside the stretching box is 100°C, and the humidity is 80%; The pressure is 400kg; the number of revolutions of the false twister is 260 rpm. After stretching, it is shaped by a three-slot sizing equipment. Among them, the first tank is rinsed with cold water, the second tank is boiled with 80°C hot water, and the third tank is washed with 60°C hot water, and the top is wound 6 ...

Embodiment 2

[0050] Processing condition is with embodiment 1. The difference is that after stretching, permanent setting is carried out by three-slot setting equipment. Wherein, the first tank is washed with cold water, the second tank is hot water at 80°C, and 1% (weight) of H is added to the water. 2 o 2 (35% concentration), boil and wash with 60 ℃ of hot water in the 3rd tank, and wool top is wound 10 circles on bar guide roller. Finally, it is dried by hot air to obtain the stretched top product. Through experiments, the average fineness of the product wool is 18.86um, and the length is 121.33mm; the boiling water shrinkage rate of the stretched wool top is 5%. Worsted wool yarn of 12.5dtex can be processed from this top.

Embodiment 3

[0052] Raw materials: pure wool tops, average fiber fineness 20.65um, average length 79.54mm, strip weight 20g / m. Add 3% (weight) of mercaptoacetic acid in the 100 ℃ aqueous solution in the bath of pretreatment device 1, ph value is 3.5, soaks this wool top; With 15 m / min speed, wool top is fed into the wet heat storage box, deposits in the storage box 60 minutes. Then, the wool sliver is fed into the described 6-zone wet heat stretching equipment at the same speed for wet heat stretching. The stretching process parameters are: stretching ratio of 6 zones: 1.02 / 1.2 / 1.2 / 1.04 / 1.04 / 1.04; the temperature inside the stretching box is 95°C, and the humidity is 90%; The pressure is 300kg; the number of revolutions of the false twister is 320 rpm. After stretching, it is shaped by a three-slot sizing equipment. Among them, the first tank is cold water washing, the second tank is 60°C hot water, and the third tank is washed with 60°C hot water, and the top is wound on the guide roll...

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Abstract

A false-twist stretching method for animal fibres includes wetting and rolling several times, wet and hot storage, false-twist stretching, shape fixating in cold water, and baking. Its apparatus consists of wetting and rolling unit, false-twist stretching unit, two guide rollers, and two squeeze rollers.

Description

(1) Technical field [0001] The invention relates to the processing technology of natural fibers, specifically a false twist stretching method and equipment for animal fibers, and the international patent classification number is proposed to be Int.C1 7 .D02J 1 / 22; D01H 5 / 28. (2) Background technology [0002] The length and fineness of natural animal fibers for textile are the two main and most important indexes or parameters. The longer the length and the finer the fineness of natural animal fiber, the better its spinning performance, the higher the quality of the product, and therefore the higher its price. However, the length and fineness of natural animal fibers are limited by objective conditions or natural conditions, and their length and fineness are limited within a certain range, which generally will not exceed. In particular, the longer the length of natural animal fibers, the thicker the fineness; conversely, the finer the fineness, the shorter the length. Desi...

Claims

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Application Information

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IPC IPC(8): D01H5/28D02J1/22
Inventor 杨锁廷刘建中姚金波
Owner TIANJIN POLYTECHNIC UNIV
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