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Aramid yarn processing method

A processing method and technology of aramid yarn, applied in the field of yarn processing, can solve problems such as small braids, and achieve the effects of increasing added value, improving cloth surface evenness and simple operation

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

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a processing method of aramid yarn, which is simple to operate and suitable for large-scale production; the invention obtains aramid yarn, which not only overcomes the "small The shortcoming of "braid" can be improved at the same time, and the cloth surface evenness of the subsequent aramid fiber products can be improved, and the added value of the final product can be increased

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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  • Aramid yarn processing method
  • Aramid yarn processing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] 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 aramid fiber absorbs enough moisture; add a yarn guide 4' at 120 mm directly above the yarn guide 4, and install a heating device between the yarn guide 4 and the yarn guide 4' 8. The yarn 5 is heat-treated.

[0021] 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 .

[0022] The heating device 8 adopts a microwave heating method, and uses a standard straight waveguide of 109.2×54.6 mm to be fixedly connected to ...

Embodiment 2

[0025] 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 aramid fiber absorb enough moisture; add a yarn guide 4' directly above the yarn guide 4 at 130mm, and install a heating device 8 between the yarn guide 4 and the yarn guide 4' The yarn 5 is heat-treated.

[0026] 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.

[0027] 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 spinning ...

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Abstract

The invention relates to an aramid yarn processing method including the steps as follows: a wetting apparatus (7) is added behind a front roller (3) so as to conduct wetting treatment on a yarn (5); high pressure water of 0.5-1Mpa enters from an inlet (9) outside the wetting apparatus (7) and then forms water mist at a spray orifice (10) of 0.05-0.2mm on the inner wall so as to act on the passingyarn (5); a yarn guider (4') is added at 120-130mm right above a yarn guide hook (4); and a heating apparatus (8) is added between the yarn guide hook (4) and the yarn guider (4') so as to heat the yarn (5). In the processing method, a traditional ring spinning device is only added with the wetting apparatus and the heating apparatus, and the method is simple in operation and suitable for scale production; and the aramid yarn obtained by the processing method can not overcome the defect that the traditional aramid yarn generates 'twist' easily, but also improve the uniformity of the fabric surface of a rear aramid product, and enhance the added value of the final product.

Description

technical field [0001] The invention belongs to the field of yarn processing, in particular to a method for processing aramid yarn. Background technique [0002] Aramid 1313 fiber belongs to aromatic polyamide, its full name is "poly-m-phenylene isophthalate" fiber, which has excellent tenderness resistance, dimensional thermal stability and good mechanical properties. Due to the introduction of aromatic rings in the macromolecular chain of aromatic polyamide, the flexibility of the molecule is reduced, the rigidity of the molecular chain is improved, and the fiber has the characteristics of high strength, high modulus, and high melting point, even at 300 ° C Under the above high temperature conditions, the fiber will not melt, and can still play the role of insulation and protection, and the shrinkage is very small when it is close to the flame, so it is very suitable for making ropes, conveyor belts, flame-retardant firefighting clothing and Protective clothing, etc. How...

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): D02G3/02D01H13/30D01H13/28D01H13/04
Inventor 薛文良魏孟媛程隆棣钱竞芳张瑞寅
Owner DONGHUA UNIV