High-rigidity brittle fiber material non-destructive covering yarn and spinning method thereof and fabric

Abstract

The invention discloses a high-rigidity brittle fiber material non-destructive covering yarn and a spinning method thereof and fabric. The spinning method comprises the steps that the high-rigidity brittle fiber clamped by a flexible fiber is subjected to forward composite twisting when the twist condition is lower than maximum breaking torque of a high-rigidity brittle fiber filament, so as to form a composite yarn core; friction spinning technology is used to reverse twist the composite yarn core, and the surface of the reversely twisted composite yarn core is covered with a flexible flame-retardant fiber, so as to form a core-shell structure composite yarn; and the core-shell structure composite yarn is positively twisted into a strand by a two-for-one twister, and is woven together with a single core-shell structure composite yarn to form the fabric with excellent wearability. According to the spinning method, the high-rigidity brittle fiber filament is completely covered under thecondition of ensuring that the high-rigidity brittle fiber filament is not damaged, so as to maximize high strength performance of the high-rigidity brittle fiber filament, avoid the high-rigidity brittle fiber filament breakage and fiber end exposure, and improve the wearability of the fabric.

Description

technical field [0001] The invention relates to the technical field of textiles, in particular to a high-rigidity and brittle fiber material non-destructive covering yarn, a spinning method and a fabric thereof. Background technique [0002] High rigidity and brittle fiber materials such as basalt fiber, glass fiber and carbon fiber not only have higher strength and modulus than ordinary fibers, but also have excellent high temperature resistance, flame retardancy and chemical stability, occupying an important position in the national economy and defense industry. important position and broad application prospects. Therefore, yarns and fabrics based on high rigidity and brittle fiber materials have also received extensive attention from researchers. [0003] However, due to the lack of flexibility and high brittleness of high rigidity and brittle fiber materials, it is easy to break and generate debris during the weaving process, which is not conducive to subsequent product...

AI Technical Summary

Problems solved by technology

[0004] The patent with publication number CN102296389B provides a composite spinning device and spinning method in which chemical fiber filaments are coated with rigid fiber filaments. Larger, the problem of fiber bending and brittle fracture is extremely prone to occur during rewinding and weaving processing. It not only maintains the high-strength and high-modulus properties of carbon fiber, but also protects carbon fiber filaments from damage during processing and use.

However, when using conventional ring spinning technology to wrap rigid fibers, in order to completely cover the rigid fiber filaments, it is necessary to apply a sufficient amount of twist, so that although the rigid fibers can be completely covered, the yarn The rigid fiber filaments covered in the body have been broken, not only can not effectively exert its high-strength performance, but also the broken fiber end of the rigid fiber is easy to expose the yarn body, forming burrs, which leads to discomfort such as itching and skin allergies when the wearer wears it. symptom

To eliminate this kind of discomfort, the factory also needs to use multiple fabrics to cover, but this will increase the load of wearing, and the weaving is complicated and troublesome

In addition, excessive twist during twisting will also lead to excessive reverse twist residual torque, resulting in twist shrinkage, which makes rigid fibers easy to entangle and affects the subsequent processing and weaving process.

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