Non-woven filter cotton: scientific name polyester fiber, commonly known as non-woven fabric, non-woven fabric has extensive use of technology, technology maturity, good stability and other technical characteristics, is China's current initial, medium efficiency plate, bag filter typical Filter material. The manufacturing process is meltblown, acupuncture, spunlace, spunbond, etc. Processes are made through multiple processes. Compared with other filter media of the same grade, it has stable quality, large dust content, strong moisture resistance, long service life, and economy. Durable and other advantages. Non-woven fabrics are also the earliest filter materials used. The technology is mature and the production cost is low. In recent years, thanks to continuous technology, the appearance of composite nonwovens has greatly improved the image of cheap and low-grade non-woven fabrics. Efficient. At the same time, the composite non-woven filter can also be used for filtration in places where air cleanliness is relatively demanding.