FILTERING MATERIAL Russian patent published in 2000 - IPC

FIELD: manufacture of filtering materials for cleaning liquid and gaseous media. SUBSTANCE: filter cloth has inter- weaving of warp fiber at linear density of 76 ± 1 tex x 4 and weft fibers at linear density of 76 ± 1 x 2 tex; these fibers are made from 100-% polypropylene fiber; density of cloth over warp is 108 to 110 fibers per 10 cm, density of cloth over weft is 105 to 107 fibers per 10 cm and density of filtering material is 530 to 590 g/sq.cm. EFFECT: improved operational characteristics. 1 ex