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Method for processing over-twisted pure cotton yarns

A processing method and technology of cotton yarn, applied in the direction of yarn, spinning machine, continuous winding spinning machine, etc., can solve the problems of weaving defects on the cloth surface and unstable knitting loops in the back knitting, so as to increase the added value, improve the The effect of evenness and easy operation

Inactive Publication Date: 2012-07-18
DONGHUA UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the internal stress and torque accumulated by the fibers in the yarn due to the twisting effect will also have a negative impact on the subsequent knitting or weaving process. There are weaving defects in the cloth surface during weaving, so the development of strong-twisted pure cotton yarn urgently needs to solve the problem of twist setting

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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  • Method for processing over-twisted pure cotton yarns
  • Method for processing over-twisted pure cotton yarns
  • Method for processing over-twisted pure cotton yarns

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] After the front roller 3, a wet supply device 7 is installed to perform wet treatment on the yarn 5. After the 0.5MPa high-pressure water enters through the external entrance 9 of the wet supply device 7, water mist is formed at the 0.05mm spray hole 10 on the inner wall. For the passing yarn 5, the cotton fiber absorbs enough moisture; add a yarn guide 4' at 120mm directly above the yarn guide hook 4, and install a heating device 8 between the yarn guide hook 4 and the yarn guide 4' The yarn 5 is heat-treated.

[0022] The wet supply device 7 is an annular hollow cylinder, which is fixedly connected to the spinning frame, with an outer diameter of 5 mm, an inner diameter of 3 mm, and a length of 20 mm; at the same time, in order to facilitate yarn introduction, a 0.5 mm groove 11 is opened on the side of the wet supply device 7 .

[0023] The heating device 8 adopts a microwave heating method, and uses a standard straight waveguide of 109.2×54.6 mm to be fixedly conne...

Embodiment 2

[0026] After the front roller 3, a wet supply device 7 is installed to wet the yarn 5. After the 1MPa high-pressure water enters through the external inlet 9 of the wet supply device 7, water mist is formed at the 0.2mm spray hole 10 on the inner wall, and acts on the The passing yarn 5 makes the cotton fiber absorb enough moisture; add a yarn guide 4' at 130mm directly above the yarn guide 4', and install 8 pairs of heating devices between the yarn guide 4 and the yarn guide 4' Yarn 5 is heat-treated.

[0027] The moistening device 7 is an annular hollow cylinder, which is fixedly connected to the spinning frame, with an outer diameter of 10 mm, an inner diameter of 6 mm, and a length of 50 mm; at the same time, in order to facilitate yarn introduction, the side of the wetting device 7 is provided with a groove 11 of 1 mm.

[0028] The heating device 8 adopts a microwave heating method, and uses a standard straight waveguide of 109.2×54.6mm to be fixedly connected to the spin...

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Abstract

The invention relates to a method for processing over-twisted pure cotton yarns. The method comprises the following steps that: a wetting device (7) is additionally installed behind front rollers (3) to wet a yarn (5) and the water with pressure being 0.5-1MPa enters via an inlet (9) outside the wetting device (7) and then forms water mist on orifices (10) with diameter being 0.05-0.2mm on the inner wall to act on the passing yarn (5); and a yarn guide (4') is additionally installed 120-130mm right above a yarn guide hook (4); and a heating device (8) is additionally installed between the yarn guide hook (4) and the yarn guide (4') to heat the yarn (5). The method has the following beneficial effects: the wetting device and the heating device are only additionally installed on the traditional ring spinning equipment; the method is simple to operate and suitable for scale production; the over-twisted pure cotton yarns obtained by the method not only overcome the defect that the traditional over-twisted pure cotton yarns easily have braids, but also can improve the cloth cover evenness of the subsequent over-twisted pure cotton products and improve the added value of the final products.

Description

technical field [0001] The invention belongs to the field of yarn processing, in particular to a processing method of strong twist pure cotton yarn. Background technique [0002] Twisting refers to the twisting, rubbing or winding process of fiber materials such as fiber strands and continuous filament bundles around their axes. For fiber aggregates, especially short fibers, twisting is a necessary condition for making them into yarns. . Twist provides the cohesion that keeps the fibers together. Twisting is the main factor affecting the structure of the yarn, almost affects all the physical and mechanical properties of the yarn, and is a necessary means for the stability and usability of the yarn. [0003] During the twisting process, due to the inconsistency of the lengths of the routes that the fibers travel on different radius levels of the yarn section, the routes to the outer layer are longer, and the routes to the inner layers are shorter, and the fibers on each rad...

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 Patents(China)
IPC IPC(8): D01H13/30D01H13/28D01H1/02D02G3/02
Inventor 薛文良魏孟媛程隆棣钱竞芳张瑞寅
Owner DONGHUA UNIV