FILTER FABRIC Russian patent published in 2021 - IPC D03D15/00 

FIELD: technical filtering fabrics.

SUBSTANCE: invention relates to technical filtering fabrics intended for gas purification. We offer a filter cloth of plain weave, containing warp and weft threads from polyester yarns of the same linear density and heat-treated. At the same time, the density of the fabric on the basis of 380-830 threads per 10 cm and on the weft is 120-116 threads per 10 cm, respectively, the surface density is not less than 320 g/m², the air permeability is 3-10 dm³/(m²s).

EFFECT: increases the service life of the filter cloth while maintaining effective filtration.

4 cl, 1 tbl, 2 ex