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Nonwoven Fabric Used in Filter Industry

Nonwoven Fabric Used in Filter Industry

Non-woven air filter fabrics are mostly made of polypropylene pellets as raw materials, which are produced by a continuous one-step process of high-temperature melting, spinning, laying, and hot-pressing. Non-woven fabric for air filter is characterized by good filterability and strong absorption ability. The filtration method of the non-woven filter bag is to use the porous medium of the non-woven filter bag to separate the suspension. When the filter bag is working, under the action of external force, the liquid in the suspension flows out through the pores of the medium, and the solid particles are intercepted to achieve separation.

Case Study of Nonwoven Fabrics & Products in Filtriation

Polypropylene Filter Cloth

Light weight and easy to handle, good acid and alkali resistance. The non-woven polypropylene fabric for sale is mainly used in the refining of dyes and pigments, clay, ceramic soil, chemical filtration, sugar, beer, oil, and other industries filtration or factory wastewater, urban water treatment, etc.

Polypropylene Filter Cloth
Polyester Filter Cloth
Polyester Filter Cloth

High strength, excellent abrasion resistance, less elongation, good acid resistance, hydrolysis and brittleness under special circumstances, dry heat resistance to 150 degrees, good shape retention. The non-woven polyester fabric is mainly used for high-temperature gas dust collection in cement, iron, and carbon plants, refined white clay filtration in oil refineries, grease, filtration in wineries, and chemical plants, etc.

Why Nonwovens for Filtration?

Non-woven filter bags are practically used in the filtration of various medium and low viscosity fluids such as petrochemical industry, automobile manufacturing, paint coating viscose, paint, electronic technology, metal processing, water treatment, pharmaceuticals, food, and beverages, etc., and are suitable for various types of impurities. The non-woven air filter fabric has an excellent filtering effect since its three-dimensional structure gives it a more obvious advantage in filtering. When the medium flows through the filter material, the mesh pores of the non-woven filter material strengthen the dispersion effect, thereby improving the filtering effect.