Preparation process for polyethylene polyester core-spun yarns

Abstract

The invention relates to a preparation process for polyethylene polyester core-spun yarns. A bottom plate, a rectangular yarn steaming frame, a heating device, a stirring and vibrating device, a dehumidifying device and a drying and winding device are included. The process can solve the following problems possibly encountered in the yarn steaming process of existing polyethylene polyester covering yarns: a, the existing polyethylene polyester covering yarns are mostly conveyed in a single-channel multi-strand yarn simultaneous conveying mode, the condition of incomplete yarn steam curing is easily caused, and the problems of yarn winding and knotting are caused by multi-strand yarn conveying, so that the subsequent winding efficiency is reduced; and b, in multi-strand yarn simultaneous conveying, a small amount of yarns are inevitably in a loose state, so that the twist of the steam-cured yarns is not stable enough, and the twisting phenomenon occurs in the subsequent process.

Description

technical field [0001] The invention relates to the field of preparation of polyethylene polyester core-spun yarn, in particular to a preparation process of polyethylene polyester core-spun yarn. Background technique [0002] Core-spun yarn is also called composite yarn or covered yarn. It is a kind of yarn composed of two or more fibers. Polyethylene polyester core-spun yarn is made of strong synthetic fiber filaments. A new type of yarn made of polyethylene polyester. During the parallel twisting process of polyethylene polyester core-spun yarn, due to repeated friction, the internal stress of the core-spun yarn will be unbalanced, resulting in deformation, resulting in fiber fatigue and static electricity. At the same time, after parallel twisting, the core-spun yarn has The huge untwisting torque will affect the progress of the subsequent production process. Therefore, steaming treatment is required to eliminate fiber fatigue and static electricity, and to stabilize th...

AI Technical Summary

Problems solved by technology

[0005] The present invention can solve the following problems that the existing polyethylene polyester core-spun yarn may encounter during the yarn steaming process: a. Most of the existing polyethylene polyester core-spun yarns are carried out by means of simultaneous delivery of single-channel multi-strand yarns , it is easy to cause incomplete yarn steaming and curing, and multi-strand yarn delivery will cause yarn winding and knotting problems, thereby reducing the efficiency of subsequent winding; b. A small amount of yarn is in a loose state, resulting in insufficient stability of yarn twist after steam curing, and kinks appear in subsequent processes

Images