Method and device for manufacturing aramid fiber yarn and aramid fiber covering yarn of aramid fiber yarn in mechanical compact spinning mode and manufactured aramid fiber covering yarn

A technology of aramid fiber and compact spinning, which is applied in the field of aramid core-spun yarn, which can solve the problems of easy exposure of the core material of the core-spun yarn and excessive hairiness, and achieve the effects of low environmental requirements, small differences between spindles, and precise structure

Active Publication Date: 2015-10-07
SHANGHAI LABON TECHNICAL FIBER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method solves the problems of more hairiness and easy exposure of core-spun yarn core material in the spinning process of aramid fiber yarn, simplifies the post-processing procedure of aramid yarn, and obviously improves the appearance of aramid woven and knitted fabrics, and has the advantages of Simple, effective and economical features

Method used

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  • Method and device for manufacturing aramid fiber yarn and aramid fiber covering yarn of aramid fiber yarn in mechanical compact spinning mode and manufactured aramid fiber covering yarn
  • Method and device for manufacturing aramid fiber yarn and aramid fiber covering yarn of aramid fiber yarn in mechanical compact spinning mode and manufactured aramid fiber covering yarn
  • Method and device for manufacturing aramid fiber yarn and aramid fiber covering yarn of aramid fiber yarn in mechanical compact spinning mode and manufactured aramid fiber covering yarn

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] Remove the front top roller 4 of the spinning frame for spinning aramid fibers in the above-mentioned example 1, and replace the front top roller 4 with a mechanical compact spinning device 3 . Other process parameters remained unchanged, and 30Ne was spun with a roving sliver with a weight of 5.1g / 10m, and the twist number of the single yarn was 871TPM, and the performance of the yarn was measured as shown in Table 1.

Embodiment 2

[0046] Use the spare roving sliver with a fixed weight of 5.1g / 10m on the spinning frame equipped with a core-spun device and grafted with a compact spinning device, and select stainless steel fibers with a diameter of 0.05mmr as the core material, which is beneficial to the transmission and control of the precision guide wheel. Accurately align the center of the roving sliver and meet it at the yarn feeding nip A to spin 12Ne para-aramid core-spun yarn with a twist number of 499TPM. The performance of the tested yarn is shown in Table 2.

[0047] Table 1 comparative example 1 and embodiment 1 yarn performance comparison

[0048]

[0049] Table 2 comparative example 2 and embodiment 2 yarn performance comparison

[0050]

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Abstract

The invention discloses a method for manufacturing aramid fiber yarn in a mechanical compact spinning mode. The method is characterized in that aramid fiber rough yarn strips are fed through a yarn feeding jaw between a front leather roller and a front roller, form the aramid fiber yarn after being spun mechanically and compactly by a limiting channel in a mechanical compact spinning device arranged among the front leather roller, a yarn guide leather roller and the front roller, and are discharged through a yarn guide jaw between the yarn guide leather roller and the front roller to obtain the aramid fiber yarn. The invention further discloses a method for manufacturing aramid fiber covering yarn in a mechanical compact spinning mode, a device for manufacturing the aramid fiber yarn in a mechanical compact spinning mode, a device for manufacturing the aramid fiber covering yarn in a mechanical compact spinning mode and the aramid fiber covering yarn. The method solves the problems that in the spinning process of the aramid fiber yarn, much hairiness is caused, and covering yarn core materials of the aramid fiber yarn are prone to being exposed.

Description

technical field [0001] The invention relates to the technical field of textiles, in particular to a method and device for producing aramid fiber yarn and its core-spun yarn by mechanical compact spinning and the prepared aramid core-spun yarn. Background technique [0002] Aramid fiber is a synthetic fiber made by polycondensation and spinning of aromatic diamine and acid chloride as raw materials, referred to as aramid fiber. The main varieties are poly-p-phenylene terephthalamide (referred to as para-aramid) and poly-m-phenylene isophthalamide (referred to as meta-aramid). Para-aramid is mainly used as high-strength and high-modulus fiber , while meta-aramid is mainly used as a high-temperature resistant fiber material, and aramid is one of the special fibers with the largest consumption in the world. [0003] Aramid yarn and its core-spun yarn is an important application method. However, during the spinning process of aramid fibers, due to poor cohesion between fibers a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D02G3/36D02G3/32
Inventor 尤秀兰尤松陈洪新
Owner SHANGHAI LABON TECHNICAL FIBER CO LTD
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