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Method for producing covering yarn

A technology of core-spun yarn and roving, which is applied in the direction of yarn, textiles and papermaking, etc. It can solve the problems of poor covering effect, achieve good covering effect and reduce the effect of bare phenomenon

Inactive Publication Date: 2013-03-27
张亮
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a method for preparing a core-spun yarn, which solves the problem of poor covering effect of the existing core-spun yarn short fibers on the outside of the filament core yarn

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0014] A kind of preparation method of core-spun yarn, concrete steps are as follows:

[0015] Step 1: On the dual-zone three-roller drafting mechanism of the ring spinning frame, the blended fiber roving sliver is fed through the bell mouth and drafted by the cradle drafting mechanism; the spandex filament is drawn from the front roller held Nip feeding, merged with the drawn blended fiber roving strands;

[0016] Step 2: After the spandex filament is conveyed by the front roller and fed into the twisting area of ​​the blended fiber roving sliver, the spandex filament is conveyed through a precision-made yarn guide device and aligned with the center of the blended fiber roving sliver, and blended with the blended fiber roving After the strands are merged, they enter the twisting triangle area of ​​ring spinning together for twisting;

[0017] Step 3: Control the tension of the filament through the filament tension control device, the tension value is controlled at 10cN ~ 25c...

Embodiment

[0020] Step 1: On the dual-zone three-roller drafting mechanism of the ring spinning frame, feed the blended roving sliver from the bell mouth and draft it through the cradle drafting mechanism; the spandex filament is drawn from the front roller gripper Mouth feeding, merged with the drawn blended roving sliver;

[0021] Step 2: The spandex filament is conveyed by the front roller and fed into the twisting area of ​​the blended roving sliver. The filament is conveyed through a precision-made yarn guide device, and aligned with the center of the blended roving sliver, and merged with the blended roving sliver , and enter into the twisting triangle area of ​​ring spinning together for twisting;

[0022] Step 3: Control the tension of the filament through the filament tension control device, and the filament tension value is 20cN; Carry out the blended fiber covering and twisting for the first time to the filament, the twist coefficients of the covering and twisting are respect...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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PUM

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Abstract

The invention discloses a method for producing covering yarn. The method mainly takes spandex filaments as core yarns, two times of blend fiber covering are carried out on the surfaces of the core yarns, and the twisting direction of the blend fibers of the first covering is opposite to the twisting direction of the blend fibers of the second covering. The method for producing the covering yarn utilizes the blend fibers to cover the spandex filaments for two times, and the twisting directions of the two times of covering are opposite to each other, so that the phenomenon that the blend fibers slide on the surfaces of the spandex filament core yarns is reduced or eliminated, the phenomenon that the spandex filaments are exposed on the surface of a textile is reduced, and a good covering effect is obtained.

Description

technical field [0001] The invention belongs to the technical field of textiles, and in particular relates to a method for preparing a core-spun yarn. Background technique [0002] Core-spun yarn is generally a yarn made of synthetic fiber filaments with good strength and elasticity as the core yarn, and short fibers such as cotton, wool, and viscose fibers are twisted and spun together. The more common core-spun yarns include polyester-cotton core-spun yarn, which uses polyester filament as the core yarn and outsources cotton fibers; and spandex core-spun yarn, which uses spandex filament as the core yarn and outsources yarn made of other fibers. The disadvantage of these core-spun yarns is that the short fibers are covered only once outside the filament core yarn, and the short fibers in the yarn will slip on the filaments, causing the filaments to be exposed in some segments of the yarn, on the surface of the fabric. Defects occur and the coating effect is poor. Conten...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D02G3/32
Inventor 张亮
Owner 张亮
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