Anti oil and waterproof needle punched felt dust bag is a special chemical treatment on the basis of ordinary anti-static needle punched felt, which increases the waterproof and oil resistant properties of the product. The filter surface is easy to penetrate after coming into contact with water and oil, avoiding the phenomenon of bag sticking. It is suitable for dust collection with high humidity and oil containing gases.
The oil resistant and waterproof needle punched felt filter bag is made by sewing waterproof and oil resistant needle punched felt. Its production process is as follows: fiber opening - combing - laying net - pre needling - main needling - felting - singeing - calendering - impregnation - PTFE (waterproof agent) drying - shaping - rolling - rolling - packaging - cutting - sewing. Anti oil and waterproof needle punched felt filter bags are used in situations with high moisture content. Compared with ordinary filter bags, the filter material is less likely to clog the bag, extending the cleaning cycle and the service life of the filter bag. The gas flow rate also increases, which can save energy consumption and maintenance costs, while also increasing production. Post finishing technology can not only perform water and oil repellent treatment on needle punched felt (such as polyester, polypropylene, anti-static, and Metas), but also waterproof and oil repellent treatment on woven filter materials such as polyester 208 velvet cloth and 729 cylinder cloth.
The oil resistant and waterproof needle punched felt filter bag not only has the spinnability and wear resistance of polyester fiber, but also has good heat resistance, flame retardancy, and non melting properties. The fiber oxygen index can be at 29% and does not self ignite. When the temperature is above 400 ℃, the fibers undergo slow carbonization. In addition, Metas fibers also have good dimensional stability. Compared with fiberglass, its wear resistance and bending resistance are unparalleled. Therefore, it has high temperature resistance and long service life, and is currently one of the filter material choices for bag filters in high-temperature filtration applications.