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Water Repellent Polyester Needle Felt Cloth Bag

Water Repellent Polyester Needle Felt Cloth Bag
Water Repellent Polyester Needle Felt Cloth Bag
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Product Code : 14
Product Description


Our offered water-repellent and oil-repellent polyester needle-punched felt cloth bag is made of filter cloth that is impregnated with PTFE (water repellent). Usually, these are used when the temperature of the dust collector box is lower than the dew point temperature and the humidity of the dust gas is relatively high. The oil and water-repellent treatment using fluorocarbon resin and PTFE treatment can more easily trap the dust on the surface of wet dust-containing gas filter bags to avoid and reduce the occurrence of paste-bag phenomenon. The filter material is not easy to jam the paste bag, the service life of these filter cloth is prolonged, and the gas flow rate is increased that greatly saves the maintenance cost.


These cloth bags are used in various bag type dust collectors, pulse bag dust collectors, and bag dust removal equipment. We have selected reactive fluorochemical additives for the post-treatment of polyester, polypropylene, and anti-static needle felt, aramid needle felt and other filter media, all to achieve ideal water and oil repellent effect. Not only does the water and oil repellency rating test meet national standards, but also it does not affect the appearance and inherent indicators of the original needle felt.



The reactive working fluid is used for preparing the impregnated filter medium with the reactive fluoridating agent, so that the working fluid reacts with certain groups in the macromolecular structure of the filter fiber to form a macromolecular chain, and the affinity between the fiber and water and oil is changed, so that the surface tension of the filter material is reduced to less than the surface tension of water and oil in order to achieve the purpose of water repellency and oil repellency.


Polyester fiber anti-static needle punch filter felt


Polyester, stainless steel conductive fiber





Air permeability


Longitudinal pull


Latitudinal tension


Longitudinal extension


Zonal elongation


Operating temperature



Stereotypes, calendering

Hebei Outai Environmental Protection Equipment Co. Ltd.

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