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Spinning method of aramid fibers III

A kind of aramid fiber spinning technology, applied in the spinning field of aramid fiber III, to achieve the effect of overcoming difficulty in spinning, reducing production cost and reducing spinning process

Active Publication Date: 2020-06-19
CHINA BLUESTAR CHENGRAND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention aims to solve the gaps in the para-aramid copolymer fiber spinning process and para-aramid copolymer fiber spun yarn products in the prior art, and provides a spinning method for aramid fiber III. The method is used to spin the aramid III staple fiber without crimping treatment, which saves manpower and material resources, and obtains the overall mechanical properties of the aramid yarn III, and its strength is higher than 86cN / tex

Method used

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  • Spinning method of aramid fibers III

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] A method for spinning aramid fiber III, comprising the steps of:

[0030] A and wool opening: 100kg of aramid III staple fibers are sent to the wool-closing machine for wool blending, and the aramid III staple fibers have not been crimped;

[0031] B, carding: the staple fibers obtained in step A are sent to a carding machine for carding to obtain wool tops;

[0032] C, three-way drawing: the wool top obtained in step B is input to the drawing frame for drawing to obtain a coarse wool top;

[0033] D, roving: the rough top that step C obtains is processed through roving frame to obtain roving;

[0034] E, spun yarn: the roving obtained in step D is drawn through wool spinning long rollers to obtain spun yarn.

Embodiment 2

[0036] Aramid III staple fibers have different lengths, and the obtained yarns can be used in the production of different products. In this embodiment, a mixture of aramid III staple fibers with a length greater than 36 mm and less than 62 mm is selected.

Embodiment 3

[0038] In this example, on the basis of Example 1, the aramid III short fibers are sprayed with oil agent for 24 hours before wool blending, and the water content is kept at 13%-20%.

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Abstract

The present invention provides a spinning method of aramid fibers III. The method comprises the following steps of A, wool blending and opening, wherein short aramid fibers III are fed into a wool blending machine for wool blending, and second short fibers are not crimped; B, carding, wherein the short fibers obtained in the step A are fed into a carding machine for carding to obtain wool tops; C,three-time drawing, wherein the wool tops obtained in the step B are input to a drawing frame for drawing to obtain crude wool tops; D, roving, wherein the crude wool tops obtained in the step C aretreated with a roving machine to obtain a roving yarn; and E, spinning, wherein the roving yarn obtained in the step D are drafted by a wool spinning long roller to obtain a spun yarn. The method is used for spinning the short aramid fibers III which are not crimped, and crimping treatment is not needed, so that manpower and material resources are saved; and the strength of the integral mechanicalperformance of the obtained aramid fiber III yarn is higher than 86 cN / tex.

Description

technical field [0001] The invention belongs to the technical field of textiles, and in particular relates to a method for spinning aramid fiber III. Background technique [0002] Para-aramid fiber is a high-tech material with excellent mechanical and thermal properties, and is widely used in the fields of national defense and military industry and optical cable rubber. The spun yarn prepared by using it can be used in the field of protection, such as cut-resistant and heat-resistant gloves, cut-resistant and temperature-resistant fabrics, and temperature-resistant high-strength sewing threads. [0003] CN103437013B patent provides a process for producing aramid yarn by using recycled aramid fiber 1414, which mainly controls the humidity of short fibers and the process parameters of card clothing. CN101918629B patent provides a method of blending aramid fiber or PBO fiber with high-shrinkage staple fiber to prepare high-shrinkage staple fiber yarn and fabric. CN103981610A ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D02G3/04
CPCD02G3/04D10B2331/021
Inventor 李兰英何鑫业林志娇周万立
Owner CHINA BLUESTAR CHENGRAND CO LTD