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Ultra-high-strength yarn and production method thereof

A production method and strong yarn technology, applied in the field of ultra-high-strength yarn and its production, can solve problems such as difficult to form tops, difficult to crimp, difficult process, etc., to achieve the effect of reducing raw material costs, reducing production costs, and cheap prices

Active Publication Date: 2020-06-19
CHINA BLUESTAR CHENGRAND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the para-aramid copolymer fibers and poly-p-phenylene benzobisoxazole fibers have the above advantages, they are difficult to crimp due to their high rigidity, especially the para-aramid copolymer fibers are more rigid and difficult to crimp , if the existing para-aramid fiber spinning process is used, if the fiber is not crimped and the fiber is spun directly according to the above spinning process, it will be difficult to form tops on the draw frame, resulting in difficulties in subsequent processes

Method used

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  • Ultra-high-strength yarn and production method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] In this embodiment, 100 kg of ultra-high-strength spun yarn is taken as an example.

[0031] Ultra-high strength yarn, wherein the yarn consists of 2 twisted threads, wherein the twisted threads consist of a first staple fiber and a second staple fiber, the weight of the first staple fiber and the second staple fiber being 70 kg and 30 kg respectively ; The first short fiber is made of aramid II filament with a breaking strength of 20 g / d, and the second uncrimped short fiber is made of aramid III filament with a breaking strength of 28 g / d.

Embodiment 2

[0033] In this embodiment, 100 kg of ultra-high-strength yarn is taken as an example.

[0034] Ultra-high-strength yarn, wherein the yarn consists of 2 twisted threads, wherein the twisted thread consists of a first staple fiber and a second staple fiber, the first staple fiber and the second staple fiber have a weight of 70 kg and 30kg; the first short fiber is made of aramid II filament with a breaking strength of 20g / d, and the second short fiber is made of a PBO long filament with a breaking strength of 32g / d.

Embodiment 3

[0036] In this embodiment, 100 kg of ultra-high-strength spun yarn is taken as an example.

[0037]Ultra-high-strength yarn, wherein the yarn consists of 3 twisted threads, wherein the twisted threads consist of a first staple fiber and a second staple fiber, the weight of the first staple fiber and the second staple fiber being respectively 60 kg and 40 kg; the first short fiber is made of aramid II filament with a breaking strength of 20g / d, and the second uncrimped short fiber is made of aramid III filament with a breaking strength of 29g / d .

[0038] In this embodiment, the lengths of the first short fiber and the second short fiber are both short fibers of 36 mm.

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Abstract

The invention provides an ultra-high-strength yarn and a production method thereof. The yarn comprises at least one twisted thread, wherein each twisted thread is formed at least by a staple fiber anda second staple fiber, wherein the weight ratio of the first staple fiber to the second staple fiber is (30-100):(30-100), the first staple fiber is made of an aramid filament II with the breaking strength of greater than 15 g / d, and the second staple fiber is made of an aramid filament III with the breaking strength of greater than 27 g / d or a PBO filament with the breaking strength of greater than 30 g / d. The yarn, namely a staple fiber yarn, is prepared by fiber mixing and opening, carding, three-time drawing, roving and spinning. The preparation method has the characteristics that no-crimping staple fibers are utilized in a semi-worsted wool spinning process, so that the disadvantage that high-strength fibers are difficult to crimp and spin is overcome, and the strength of a preparedblend yarn is greater than 86 cN / tex.

Description

technical field [0001] The invention belongs to the technical field of textiles, and relates to a production method of spun yarn, in particular to a super high-strength yarn and a production method thereof. Background technique [0002] Para-aramid fiber is a high-tech material with excellent mechanical and thermal properties, and is widely used in the fields of national defense and military industry and optical cable rubber. The spun yarn prepared by using it can be used in the field of protection, such as cut-resistant and heat-resistant gloves, cut-resistant and temperature-resistant fabrics, and temperature-resistant high-strength sewing threads. [0003] CN103437013B patent provides a process for producing aramid yarn by using recycled aramid fiber 1414, which mainly controls the humidity of short fibers and the process parameters of card clothing. CN101918629B patent provides a method of blending aramid fiber or PBO fiber with high-shrinkage staple fiber to prepare hi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D02G3/04
CPCD02G3/045D10B2331/021D10B2331/14
Inventor 李兰英何鑫业林志娇周万立
Owner CHINA BLUESTAR CHENGRAND CO LTD