Filter bag material selection
The four most common fabrics used in the construction of industrial filter bags are polypropylene, polyester, Aramid and Fiber Glass, although others are available for special applications. The material of the filter bag is an important factor for use in the required industry. Commonly used materials are:
1. Polypropylene felt bags are probably the most common type in use. They provide good to excellent chemical resistance to mineral acids, organic acids, alkalis, organic solvents, and micro organisms at temperatures up to 200F, at a very reasonable cost.
2. Polyester: Polyester is a suitable and low-cost material. It is a suitable material for dry temperature dust removal applications. Its applications include industries like food and wood manufacturing.
3. Aramid: Aramid fibers are an excellent example of heat-resistant and strong synthetic fibers. Based on these properties, aramid filters are suitable for high-temperature applications. This temperature property makes it suitable for heavy material industries with continuous processing. These fibers have the capability to operate at around 400 Fahrenheit. Aramid fibers are suitable for use in cement, metalworking, and casting industries.
4. Fiber Glass: Fiberglass is an emerging and new material. It has the capability to operate at much higher temperatures. Fiberglass has applications in chemical and mineral industries.