Blended yarn and preparation method and application thereof

Abstract

The invention discloses a blended yarn and a preparation method and application thereof.The preparation method of the blended yarn comprises the steps that in the siro spinning process, multiple roving strips are subjected to multiple times of siro spinning drafting and twisting through a siro spinning method, and siro spinning primary yarn is obtained; stranding the siro spinning primary yarn and a fiber bundle which is spun through melt spinning and is not completely cooled, and then jointly carrying out siro spinning drafting and twisting for at least one time to obtain a blended yarn; in the plying process, the fiber bundles which are not completely cooled adhere siro spinning primary yarn through the softened and adhesive surfaces of the fiber bundles, siro spinning is adopted in the method, but the defects existing in the conventional siro spinning process are overcome, the broken end phenomenon of single yarn fiber strands in the siro spinning process is reduced, and the yarn quality is improved. And the prepared blended yarn has better effects in the aspects of strength, wear resistance, hairiness quantity and the like.

Description

technical field [0001] The invention belongs to the technical field of textile technology, and in particular relates to a blended yarn and a preparation method and application thereof. Background technique [0002] Siro spinning is to feed a plurality of rovings with a certain distance on the spinning frame. After many times of drafting and twisting, the multiple single yarn whiskers are output from the front roller, and due to the transmission of twist, the single yarn whiskers are added. With a small amount of twist, after splicing, it is further twisted into a plied-like yarn, which is wound on a bobbin. Although the yarn formed by this method improves strength, wear resistance, and reduces the amount of hairiness, it is precisely for the purpose of To improve these properties, the roving needs to be drawn and twisted for many times, which means that the fineness of the single yarn whisker becomes smaller in the later stage, which in turn causes the single yarn whisker to...

AI Technical Summary

Problems solved by technology

[0002] Siro spinning is to feed multiple rovings at a certain distance on the spinning frame, and after multiple drafting and twisting, the multiple single yarn strands are output by the front roller, and the single yarn strands are twisted due to the transfer of twist. With a small amount of twist, after splicing, it is further twisted into a ply-like yarn and wound on the bobbin. Although the yarn formed in this way has improved strength, wear resistance, and reduced hairiness, it is precisely for To improve these properties, the roving needs to be drawn and twisted multiple times, which means that the fineness of the single yarn strands becomes smaller in the later stage, and the single yarn strands are easy to break during the processing. If in the production process, If no end breakage is found, it will cause wrong yarn counting and poor yarn quality. In order to detect end breakage in time, some people propose to increase detection equipment to detect part of the single yarn yarn breakage and the rest of the spinning as usual is not ideal. situation, and then make the production system stop automatically to avoid production error spinning, however, this method does not improve production efficiency, but also reduces production efficiency, especially in the case of increasing equipment costs. Contributes to the properties of the spun yarn, which is not conducive to industrial applications

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