Filter fabrics mainly include: polyester filter cloth, polypropylene filter cloth, nylon filter cloth, and vinylon filter cloth. The material properties of filter fabrics are: acid-resistant and resistant to weak alkalis. They exhibit excellent wear resistance, corrosion resistance, and resilience, but have very poor electrical conductivity. Polyester fibers generally withstand temperatures ranging from 130°C to 150°C. In addition to the inherent advantages typical of conventional felt filter fabrics, these fabrics boast outstanding wear resistance and offer exceptional cost-effectiveness, making them the most widely used type among felt filter materials.