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Pretreatment method for processing regenerated para aramid yarns

A para-aramid and yarn technology, which is applied in the pretreatment field of regenerated para-aramid yarn processing, can solve problems such as high static electricity, fiber spinnability damage, and difficulty in yarn formation, and achieve low cost and high strength , The effect of simple process

Active Publication Date: 2016-06-22
SHANGHAI RISOO TECH TEXTILE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, because the fiber is repeatedly treated in the solvent, the spinnability of the fiber is destroyed. When spinning with this material, due to the large static electricity and high specific resistance, it is difficult to clean the cotton into a roll, and it is difficult to card into a web. The sliver cannot be continuously formed into a sliver, and the drawing, roving and spun yarn are mainly manifested by the winding of each drafting part, making yarn difficult and unable to guarantee the basic quality

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Use 20S / 2 recycled para-aramid yarn. The regenerated para-aramid yarn that has been opened, faded or degummed is immersed in the pre-treatment solution by weight at 2:1, and then taken out after 20 minutes to dehydrate and spin dry. The composition of the pre-treatment solution is 1000 One gram of water contains 20 grams of Dow Corning Z-6121, 50 grams of SELBANAUN-T, and 60 grams of YZ-1109. The strength of the treated aramid yarn can reach 3000CN.

Embodiment 2

[0018] Use 20S / 2 recycled para-aramid yarn. The regenerated para-aramid yarn that has been opened, faded or degummed is immersed in the pretreatment solution at a weight of 3:1, and after 30 minutes, it is taken out for dehydration and spin-drying. The composition of the pretreatment solution is 1000 One gram of water contains 15 grams of Dow Corning Z-6121, 40 grams of SELBANAUN-T, and 40 grams of YZ-1109. The processed aramid yarn has a strength of 2800CN.

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PUM

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Abstract

The invention relates to a pretreatment method for processing regenerated para aramid yarns. The pretreatment method comprises the steps of impregnating the regenerated para aramid yarns subjected to opening, fading or degumming treatment with a pretreatment solution by the weight ratio of 2-3 to 1 for 20-30 minutes, taking out the yarns and dehydrating and drying the yarns. The pretreatment method is simple in process and low in cost, the treated aramid yarns are high in strength, the yarn strength can reach 3000 CN, and the using requirements of common cut-resistant gloves are basically met.

Description

Technical field [0001] The invention belongs to the field of aramid yarn processing, and particularly relates to a pretreatment method for processing regenerated para-aramid yarn. Background technique [0002] Aromatic polyamide fiber (aramid) is currently the fastest growing high-performance chemical fiber in the world. It has excellent mechanical and dynamic properties such as high specific strength, high specific modulus, low density, wear resistance, impact resistance, fatigue resistance, etc.; good chemical resistance, high temperature resistance, low expansion, low conductivity, Outstanding thermal properties such as non-combustibility, non-melting, and excellent dielectric properties have attracted widespread attention. As a fiber reinforced composite material, it has more significant advantages than glass fiber reinforced composite material in terms of density and strength. Therefore, it is widely used in aerospace, defense and military industry, electronic communication...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M13/00D06M15/19D06M13/513D06M101/36
CPCD06M13/00D06M13/513D06M15/19D06M2101/36
Inventor 何敏珠
Owner SHANGHAI RISOO TECH TEXTILE
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