Production method of short staple enveloped composite yarn

Abstract

The invention discloses a production method of short fiber wrapping composite yarn. The invention realizes wrapping composite spinning of short fiber and short fiber, which is completed by spinning frame and wrapping device. The production steps are as follows: raw material, cleaning Flowers, carding, drawing, roving, spinning, winding. During the spun yarn spinning process, two rovings spun from different raw materials are fed into each drafting zone. After passing through the double-hole bell mouth, they enter the drafting zone at a fixed distance. Output two strands of equal length, one is twisted to become the core yarn, and the other is in the state of free fiber on the surface of the transfer top roller, and is produced by the airflow boundary layer at the groove of the wrapping roller and the core yarn Wrapped to form wrapped yarn. By adopting the present invention, cotton fibers are used to wrap polyester staple fiber for spinning, and the surface of the fabric will be all cotton fibers, and at the same time, it has the inherent characteristics of polyester fibers, thereby solving the problems of poor wrinkle resistance of pure cotton fabrics and difficult dyeing of polyester-cotton fabrics. , the advantages of the two fibers complement each other, the wearability of the fabric is better, and the production cost is low, which is beneficial to environmental protection.

Description

[0001] Application field [0002] The invention relates to a spinning technology, in particular to a production method of short fiber wrapped composite yarn. Background technique [0003] In recent years, the main types of composite yarn production technologies invented and industrialized in the world are: core yarn, wrapped yarn, Siro spinning, Sirofil spinning, etc. The production principles of these types of products are different, the product styles are different, and the application fields are diverse. The core-spun yarn refers to a yarn or filament as the core, which is twisted together with another outer fiber to form a yarn. The characteristic is that the core yarn and the outer fiber have the same output length during twisting, and the core yarn is not exposed. , The production methods include air-jet spinning, friction spinning, modified ring spinning, etc.; wrapping yarn refers to a filament as the core, and another outer fiber of different composition is wrapped spirall...

AI Technical Summary

Problems solved by technology

The current wrapping composite yarn production technology uses at least one filament or yarn, the selection of raw materials and product application fields are limited, the production cost is high, and the excellent characteristics of various raw materials cannot be fully utilized.

For example, the traditional polyester-cotton blended fabric is fully mixed with cotton and polyester, spun into yarn, and then woven into cloth. Both fibers are exposed on the surface of the yarn, which affects the dyeing and wearing properties of the fabric.

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