Polyester fibers( filter bag) are compressed and finishes are applied according to the process or application they are used for.All of the excellent characteristics of polyester apply to polyester felt, including good resistance to chemicals, abrasion and dry heat degradation, plus excellent dimensional stability

PP filter bag(Micron Polypropylene filter fabric) have a lower fiber release, more defined pore size and greater retention efficiency than other filter media(filter bag). Liquid PP filter bag offer high efficiency filtration and have a high solids catch capacity. MLD  produce micron Polypropylene filter bags have their outside surface singed or glazed to prevent fabric fiber from the bag getting into the clean,filter process media. Micron PP filter bags are generally compatible with most fluids except those considered aromatic solvents or strongly alkaline.Liquid PP filter fabric(liquid PP filter bags) are recommended for prefiltering acids,aqueous and most solvent solutions.