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Double-nozzle tube reducing long hairiness on surface of yarn by means of rotary airflow

A technology of rotating airflow and double nozzles, applied in textiles and papermaking, etc., can solve the problems of large equipment investment and high maintenance costs

Inactive Publication Date: 2014-08-20
JIANGNAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] New technologies include compact spinning, sirofil spinning, siro spinning, etc. They are effective in reducing hairiness and improving yarn quality, but their equipment investment is large and maintenance costs are high

Method used

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  • Double-nozzle tube reducing long hairiness on surface of yarn by means of rotary airflow
  • Double-nozzle tube reducing long hairiness on surface of yarn by means of rotary airflow
  • Double-nozzle tube reducing long hairiness on surface of yarn by means of rotary airflow

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Experimental program
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Embodiment Construction

[0010] Raw material: pure cotton yarn with a basis weight of 5.21g / 10m. The spinning process conditions are: the pressure (gauge pressure) at the inlet of the swirl double nozzle air passage is 0.15MPa, the distance from the axis of the swirl double nozzle air passage to the output roller is 8.5cm; the spindle speed is 10000rpm. Spinning twist coefficient is 330, fineness is the Z twist pure cotton spun yarn of 30tex.

[0011] Yarn properties are tested in accordance with the national standard GB / T7243-1987 "Yarn Hairiness Determination Method Projection Counting Method", national standard GB / T3916-1997 "Determination of breaking strength and elongation at break of a single yarn of textile package yarn" , GB / T3292-1997 "Test Method for Uneven Yarn Dryness of Textile Textile Yarn by Capacitance Method". Table 1 lists the performance comparison of the ordinary ring spun yarn and the yarn processed after installing the swirl double nozzle.

[0012] Table 1 Comparison of propert...

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Abstract

The invention provides a vortex double-nozzle device which has the function of reducing the number of long hairiness with the length larger than or equal to 3 mm on the surface of ring spun yarn and increasing the number of short hairiness with the length smaller than 3 mm on the surface of the yarn. The device is simple in structure and convenient to operate, and can be directly arranged on a ring spinning frame for use. The device is mainly composed of three parts, namely a cylindrical yarn channel and two air channels tangent with the yarn channel. The air channels are used for supplying compressed air. The yarn directly enters the yarn channel after getting out of a front roller, and interacts with high-speed airflow in the yarn channel, and accordingly the functions of reducing the long hairiness and increasing the short hairiness on the surface of the yarn are achieved. Meanwhile, other performances of the yarn are improved to a certain extent.

Description

technical field [0001] The invention relates to a nozzle for reducing long hairiness on the yarn surface by using a swirling airflow, which is called a swirling double nozzle. The invention belongs to the technical field of textile engineering and relates to a novel device for improving the quality of spun yarn. Background technique [0002] Ring spinning is currently the spinning method with the largest proportion in spinning production, which has the advantages of mature technology, stable yarn quality and good variety adaptability. However, on the ring spinning frame, there is a spinning triangle during the twisting and forming process of the yarn, and the fibers in the sliver in the spinning triangle cannot be completely controlled, and some free fiber ends are exposed because they cannot be involved in the yarn body. Hairiness is formed on the outside. On the other hand, under the action of yarn tension, the centripetal force on the fiber is different, and repeated inte...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D02J3/00D01H13/00
Inventor 付玉叶
Owner JIANGNAN UNIV