Conductive yarn, preparation method thereof and antistatic fabric

Abstract

The invention discloses a conductive yarn, a preparation method thereof and an antistatic fabric. The preparation method comprises the following steps: twisting second conductive fibers and non-conductive fibers to form a conductive core yarn; one part of the second conductive fiber positioned on the outer side of the conductive core wire is positioned in the conductive core wire, and the other part of the second conductive fiber extends out of the conductive core wire and forms conductive hairiness; winding the first conductive fiber on the outer side of the conductive core wire to prepare a conductive yarn; wherein the length of the first conductive fiber is greater than that of the second conductive fiber. The preparation method of the conductive yarn is simple, a composite structure of short fibers and long fibers is adopted, meanwhile, conductive hairiness is formed on the outer side of the conductive core yarn, the structure gives consideration to a continuous path of a long path of charges on the yarn, effective contact between a conductive medium and a test electrode is ensured, and the test accuracy is improved. Therefore, the stability of point-to-point testing and the rapid transmission of charges are ensured, and the high-performance antistatic requirement is met.

Description

technical field [0001] The invention belongs to the field of functional yarn and fabric manufacturing, and relates to a conductive yarn, a preparation method thereof, and an antistatic fabric. Background technique [0002] Deflagration accidents caused by static sparks in flammable and explosive places are not uncommon, and with the relevant standards and requirements for personal protective equipment in flammable and explosive places, the relevant standards and requirements for personal protective equipment in flammable and explosive places are gradually being improved and optimized. Testing requirements are also improving. Anti-static clothing that meets relevant national testing standards must be worn to avoid deflagration accidents caused by static electricity. Related industries have also been greatly developed. The indicators of domestic anti-static clothing fabrics must meet the relevant requirements of GB 12014-2009 "anti-static clothing". [0003] Existing anti-sta...

AI Technical Summary

Problems solved by technology

[0003]The existing anti-static clothing mainly adopts two methods to achieve anti-static performance. One is to weave fabrics from yarn mixed with conductive fibers. To a certain extent, the antistatic performance of the fabric is improved, but the point-to-point resistance in the fabric made by this method cannot meet the requirements of the antistatic clothing standard; the second is to embed conductive silk to form the fabric, but this method also has certain limitations. It can only reach level B of point-to-point resistance, and if a metal conductive medium is used, it is easy to generate sparks, and the index cannot meet the standard requirements

At the same time, due to the high price of conductive fibers or static dissipative materials, in order to achieve an effective antistatic effect in the prior art, the addition of conductive fibers or static dissipative materials is relatively high, resulting in increased costs, and the spinning process is more cumbersome.

At the same time, in the second method, due to factors such as processing technology and unstable test contact, the index fluctuates greatly. It is necessary to increase the content of conductive filaments to barely meet the standard requirements, further exacerbating the cost of the fabric and the difficulty of processing.

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