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Method and device for producing aramid fiber yarn and its aramid core-spun yarn by mechanical compact spinning, and the prepared aramid core-spun 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: 2018-03-13
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 producing aramid fiber yarn and its aramid core-spun yarn by mechanical compact spinning, and the prepared aramid core-spun yarn
  • Method and device for producing aramid fiber yarn and its aramid core-spun yarn by mechanical compact spinning, and the prepared aramid core-spun yarn
  • Method and device for producing aramid fiber yarn and its aramid core-spun yarn by mechanical compact spinning, and the prepared aramid core-spun yarn

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] In addition to removing the front top roller 4 of the spinning frame for spinning aramid in the above example 1, it was replaced with a mechanical compact spinning device 3 and then the front top roller 4 was installed. Other technical parameters remain unchanged. Using a roving sliver with a basis weight of 5.1g / 10m, 30Ne is spun to obtain a single yarn twist of 871TPM. The performance of the yarn is measured as shown in Table 1.

Embodiment 2

[0046] The spare roving sliver with a basis weight of 5.1g / 10m is used on a spinning frame equipped with a core-spun device and grafted with a compact spinning device. The stainless steel fiber with a diameter of 0.05mmr is selected as the core material to facilitate the transmission and control of the precision guide wheel. Accurately align the center of the roving sliver and converge with the yarn feeding jaw A to spin 12Ne para-aramid core-spun yarn with a yarn twist of 499 TPM. The tested yarn properties are shown in Table 2.

[0047] Table 1 Comparison of yarn properties between Comparative Example 1 and Example 1

[0048]

[0049] Table 2 Comparison of yarn properties between Comparative Example 2 and Example 2

[0050]

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Abstract

The present invention discloses a method of aramid fiber yarn made of tight mechanical spinning. It is characterized by feeding the aramid coarse gauze strip from the yarn pliers between the front roller and the front Ralla., Limited channels in the mechanical spinning device between the gauze roller and the former Rolla, the mechanical tightly spinning of the aramid fiber yarn is formed by the gauze roller and the front gauze of the former Ralla.have to.The present invention also disclosed the method of mechanical tightly textile -made corncelasses core gauze, as well as the device of the aramid fiber yarn made of mechanical tightly spinning, the device of the aramid core gauze manufactured by the mechanical tightly spinning, and the aramid core gauze.The invention solves the problem of hairy yarn in the spinning process of the aramid fiber yarn and the problem of its easy exposure of the core gauze core material.

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 a prepared aramid fiber-spun yarn. Background technique [0002] Aromatic polyamide fiber is a synthetic fiber made by polycondensation and spinning of aromatic diamine and acid chloride as raw materials, referred to as aramid. The main varieties are poly-p-phenylene terephthalamide (referred to as para-aramid) and poly-metaphenylene 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, aramid is one of the largest consumption of special fibers in the world. [0003] Aramid yarn and its core-spun yarn are an important application method. However, in the spinning process of aramid, due to the poor cohesion between the fiber and the fibe...

Claims

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Application Information

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Patent Type & Authority Patents(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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