FILTRATION FABRIC FOR FILTRATING AIR AND GASEOUS SYSTEMS (VERSIONS) Russian patent published in 2016 - IPC D03D15/00 

FIELD: treatment plants.

SUBSTANCE: present invention relates to production of filtration materials for filtrating industrial air and cleaning process gases and allows extension of performance properties and ensures fine purification when filtrating air and gaseous media. As per I embodiment the twill-woven filtrating fabric comprises aramid threads with linear density of 58.8-110 tex on its base and weft on the basis of a polymer containing benzimidazole groups and consisting of filaments with the diameter of 10-30 µm. Weft additionally contains yarn of single or double fold based on a combination of aromatic polyamides. At per II embodiment, the filtering fabric on its weft additionally contains yarn of double fold based on aromatic oxadiazole.

EFFECT: air filtering.

6 cl, 1 tbl