Anti-static base cloth for filter material and production method for anti-static base cloth

Abstract

The invention discloses anti-static base cloth for a filter material and a production method for the anti-static base cloth. Warp and weft yarns forming the base cloth are high temperature heat-resistant fibers with the fineness of between 260 and 1,500 deniers, and are interwoven with a mixed anti-static yarn consisting of at least one of carbon black fiber and graphite fiber and a high temperature heat-resistant fiber and having the fineness of between 260 and 1,500 deniers at an interval of 2.7-3.5cm in the warp direction, the warp density is 120-180 / 10cm, the weft density is 20-80 / 10cm, and the base cloth is manufactured. The base cloth for the filter material has the characteristics of durable anti-static property, dust explosion resistant, high dimensional stability, higher tensile strength, high venting quality, and capacity of prolonging the service life of the filter material.

Description

technical field [0001] The invention relates to a base cloth for filter materials, in particular to an antistatic base cloth suitable for filtering gas-solid, liquid-solid forms, including industrial dust discharge, water treatment, etc., and a production method thereof. Background technique [0002] With economic development and social progress, China will be a country that pays more and more attention to environmental issues. People's awareness of environmental protection has increased, and the concept of environmental governance has shifted from terminal governance to source governance, that is, reducing pollution. For the field of air filtration, more and more coal-fired power plants and waste incineration plants at home and abroad use bag type dust collectors. Bag type dust collectors are one of the most effective technical equipment for controlling industrial dust and smoke at home and abroad, but industrial dust is in When the concentration reaches a certain level, if...

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Problems solved by technology

[0003] Public patent CN101332383A although the filter bag also has antistatic properties, its warp and weft yarns are all low-elastic polyester yarns and the antistatic yarns are blended yarns of stainless steel wires and polyester fibers. Such materials are only suitable for low-temperature filtration and cannot be used Filtration at medium temperature and high temperature, and the friction band voltage of the antistatic yarn fabric with stainless steel filaments is significantly higher than that of non-metallic antistatic yarn fabrics, and the metal fiber cohesion is small, the spinning performance is poor, and the color of the finished product is limited. It is expensive to make high-fine fibers, and it remains to be seen whether the spacing design of this antistatic yarn has the best effect on antistatic performance

[0004] The filter felt in the published patent CN101407976A also has antistatic properties, but it is obtained by impregnating it with an antistatic agent. If it is in a dry environment or after repeated washings, its processing effect will not be durable or significant.

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