U-shaped hollow Dacron draw-textured yarn and preparation method thereof

Abstract

The invention discloses a U-shaped hollow Dacron draw-textured yarn and a preparation method thereof. The technical process includes the steps of: adding polyester melt; sequentially passing through a booster pump, a melt transport pipe, a spinning box, a metering pump and a spinning assembly including a spinneret plate; cooling, oiling and winding; further sequentially passing through a pre-netting device, a yarn cutter, a first roller, a first heat box, a cooling plate, a false twister, a tension meter, a second roller, a network nozzle, a second heat box, a third roller and an oil wheel; winding for shaping, namely obtaining the required product. According to the preparation method, two kinds of jet micropores are designed on the same spinneret plate, namely U-shaped holes and hollow holes, so that the a bunch of yarns include U-shaped yarns as well as hollow yarns; meanwhile, through the arrangement design of the two kinds of jet micropores, the hollow yarns are wrapped in the U-shaped yarns, so that the damage to the sections of the hollow yarns in a sequential false twisting process is greatly reduced, and the functionality of the product is significantly promoted. The fabric prepared according to the invention has very wide application prospect in the field of garment materials and fabrics.

Description

technical field [0001] The present invention relates to a hollow plus "U" shaped polyester stretch textured yarn and a preparation method thereof, in particular to provide a method for processing hollow plus "U" shaped polyester with both "U" shaped and hollow POY raw yarns Preparation method of stretch textured yarn. Background technique [0002] With the improvement of social and economic development level and people's living standards, people have higher requirements for the fabric, style and style of clothing, as well as the comfort of wearing. The cross-section of traditional fibers is circular, the air permeability and moisture absorption of the fabric are poor, and the fabric density is high. Due to the change of cross-sectional shape, special-shaped fibers have unique properties compared with ordinary chemical fibers, which are mainly reflected in the following aspects: The different geometric sections of the fiber can refract and split light like a prism, and then ...

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved in the present invention is to overcome the limitations of the existing production methods of hollow plus "U" shaped polyester stretch textured yarn, and provide a hollow plus "U" shaped polyester stretch textured yarn and its preparation method. Two kinds of spinneret microholes are designed on the same spinneret, one kind of "U" shaped hole and the other kind of hollow hole, so that there are both "U" shaped filaments and hollow filaments in a bundle of filaments, so that POY original The difference in silk quality becomes smaller and the production efficiency is greatly improved; at the same time, through the arrangement design of the two kinds of spinneret micropores, the hollow filament is wrapped inside the "U"-shaped filament, and the cross-section of the hollow filament is greatly damaged in the subsequent false twisting process. Reduced, the functionality of the product is significantly improved

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