Acrylic needle-punched felt dust removal bag is to lay a layer of short fibers on a plain weave base cloth, move vertically up and down the cloth surface with a barbed needle, and use the needle to tie the fibers into the gauze velvet seam of the base cloth, and the two sides of the base cloth More than two fiber layers are laid, repeatedly needle-punched, and then processed into a needle-punched felt structure filter material with fleece on both sides.

The needle-punched felt dust filter material has the characteristics of good filtering effect, small resistance, easy dust removal, waterproof and oil-proof, and anti-condensation after various post-treatment processes.

Compared with polyester (polyester) or other acrylonitrile fibers, it has better alkali resistance and corrosion resistance of SO2, O2, O3 and other gases. When the temperature is lower than 125, it shows good resistance to organic solvents, oxidants, inorganic and organic acids. It is not hydrolyzed, so its finished products are used to replace polyester needle-punched felt filter bags in low temperature and chemically corrosive and humid occasions.