FILTERING CLOTH Russian patent published in 2008 - IPC B01D39/08 D03D15/12 

FIELD: textile.

SUBSTANCE: invention is related to production of filtering materials, that can be used when cleaning hot process gases and industrial air at excess temperature (up to 300°). Filtering cloth is weaved at loom by herringbone weaving pattern of the main and filling threads. Surface density of filtering cloth is from 250 to 350 g/m², threads density in 10 cm section is from 310 to 330 in base and from 180 to 200 in weft . Additionally, air permeability of cloth is from 40 to 200 dm³/m² s.

EFFECT: increased temperature of operation while preserving or improving cleaning quality and rate, no shrinkage at thermal treatment.

2 cl, 2 ex