Composite covered yarn, and manufacturing method and use thereof

Abstract

The invention relates to a composite covered yarn and a manufacturing method thereof and also relates to a high-temperature filter cloth. The composite covered yarn comprises an outer layer of coveredyarn made of short fiber and an inner layer of reinforcing rib made of long fiber, wherein the composite covered yarn is formed by using the covered yarn, made of one or a plurality of types of shortfibers, to cover the reinforcing rib or the metal wire reinforcing rib made of one or a plurality of types of long fibers by thermal cleaning, dipping, drying and sintering. The composite covered yarn manufactured by the method not only saves cost, but also combines the characteristics of high strength of the long fiber and good abrasion resistance and toughness of the short fiber and enhances service life, strength, high-temperature resistance and stability of the composite covered yarn. The composite covered yarn can be made into the filter cloth.

Description

Technical field [0001] The invention relates to a composite fiber and a manufacturing method thereof and a filter cloth made of the composite fiber, in particular to a composite covering yarn and a manufacturing method thereof, and a filter cloth made of the composite covering yarn. Background technique [0002] Most of the exhaust gas of industrial fuels contains a large amount of harmful substances, such as sulfide, nitrogen oxide, cyanide, etc., if it is discharged into the atmosphere, it will become a major source of air pollution. At present, the industrial dust filter materials on the market can be divided into three types: chemical fiber felt (cloth), glass fiber felt (cloth), and composite felt. Each of these three types of filter materials has advantages and disadvantages. However, the existing filter material has poor high temperature resistance and short life. The price of raw materials for making filter materials varies greatly, ranging from a few thousand yuan per t...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a composite covered yarn with low cost, good filtration performance, long service life, wide application, high temperature resistance and low investment and its production method, and in order to adapt to various use environments, it can achieve The filter cloth with the best on-site use effect solves the problem of poor effect and low cost performance of single fiber woven filter cloth

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