The membrane-coated polyester needle-punched felt dust removal filter bag, with its laminated filter material, is produced by bonding expanded polytetrafluoroethylene (e-PTFE) microporous filter membrane onto various substrates (such as polyester felt, PET, PP non-woven fabric, etc.) using a special process. The laminated material retains the inherent high chemical stability, low friction coefficient, resistance to high and low temperatures, and anti-aging properties of PTFE, capable of blocking fine particles, while also offering unparalleled breathability and performance compared to general laminated filter materials. It is a new type of "breathable laminated filter material".

Characteristics of the membrane-coated polyester needle-punched felt dust collector bag: high air permeability, low resistance, excellent filtration efficiency, high dust holding capacity, and high dust release rate make it an ideal filter material for dust removal.

Microfiltration: Non-woven fabrics like PET and PP, after membrane coating, can be made into filter sheets and filters for use in chemical, pharmaceutical, and electronic industries. They can filter fine particles and isolate bacteria while maintaining high filtration efficiency and low flow resistance.

Industrial filtration: Polyester felt and PET, after membrane coating, can be made into various filter bags, filter cartridges, and filters, widely used in the treatment and recovery of smoke and dust particles in industrial fields such as cement, metallurgy, food, coating, petrochemicals, and plastics.