Process for producing special covered yarn and product thereof

Abstract

The invention relates to a process for producing special covered yarn, which mainly comprises merging and twisting; after merging at least one yarn to form a yarn core, twisting the yarn core with a double twister, wherein the number of twists is 200-1800; and covering fibers on the twisted yarn core by using a covering machine, wherein the twisting direction in the covering process is opposite to the twisting direction of the yarn core, and the numbers of twists are the same. The technique does not need to carry out thermal-insulation setting on the covered yarn, and is especially suitable for covered yarn of which the core uses a high-temperature resistant material.

Description

technical field [0001] The invention relates to a spinning method, in particular to a process for producing special covered yarn and its products. Background technique [0002] Covered yarn is an excellent textile material with good elasticity, no pressure, stable size, good recovery, soft texture, comfortable movement, etc. It provides high-grade raw materials for textile, knitting, hosiery, clothing and other fields. During its production process, the fiber is twisted and coated on the core yarn, and the core yarn will also be twisted to a certain extent during the process of coating and twisting. In order to prevent the core yarn from returning to its original state after twisting and causing the covered yarn to shrink, heat preservation and setting processes are generally carried out to obtain a high-quality covered yarn. With the advancement of technology, more and more materials are applied to the production process of covered yarns, including some high-temperature-re...

AI Technical Summary

Problems solved by technology

With the advancement of technology, more and more materials are applied to the production process of covered yarns, including some high-temperature-resistant flame-retardant fiber materials, such as glass filaments. Due to their high-temperature resistance and fast heat dissipation, they make After the covering process is completed, the core yarn cannot be heat-preserved and shaped, and always maintains a certain twist, which will affect the subsequent weaving and other related processes of the covering yarn of glass fiber material.