Super high-strength yarn and its production method

Abstract

The present invention provides an ultra-high-strength yarn and a production method thereof, wherein the yarn includes at least one twisted thread, and the twisted thread is at least composed of first short fibers and second short fibers, and the first The weight ratio of the short fibers to the second short fibers is 30-100:30-100; the first short fibers are made of aramid II filaments with a breaking strength greater than 15 g / d, and the second short fibers are made of It is made of aramid III filaments greater than 27g / d or made of PBO filaments with a breaking strength greater than 30g / d. The spun yarn is prepared by opening with wool, combing, three-way drawing, roving, and spun yarn. The characteristic of this preparation method is that it uses non-crimp staple fibers under the semi-worsted wool spinning process to overcome the shortcomings of high-strength fibers that are difficult to crimp and spin. , The blended yarn strength obtained is higher than 86cN / tex.

Description

Ultra-high-strength yarn and method for producing the same technical field The invention belongs to textile technical field, relate to a kind of production method of spun yarn, be specifically related to a kind of ultra-high-strength yarn line and method of production. Background technique Para-aramid fiber is a kind of high-tech material with excellent mechanical and thermal properties, widely used in National defense industry and optical cable rubber field. The spun yarn prepared by using it can be used in the field of protection, such as cut-resistant temperature-resistant gloves, cut-resistant Temperature-resistant fabrics and temperature-resistant high-strength sewing threads. CN103437013B patent provides a kind of technology that utilizes recycled aramid 1414 to produce aramid yarn, and its main Control the humidity of the staple fiber and the process parameters of the card clothing. CN101918629B patent provides a kind of using aramid or PBO fiber and high ...

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

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