CLOTH FOR FILTERING THE LUBRICATING AND COOLING LIQUIDS USED IN MECHANICAL WORKING

摘要

The invention relates to a cloth for filtering the lubricating and cooling liquids used in mechanical working. According to the invention, the cloth made of synthetic mono- and multifilamentary yarns of polyethylene terephthalate and polycaproamide and having two filtration areas (ZFS, ZFD) framed between two selvedge areas (ZIMS, ZIMD) and a central area (ZIC) reinforced by increasing the warp yarn set, has polyfilamentary yarns of polyethylene terephthalate in the warp with a linear density of 167 dtex / f32x2 / 250Z and polyethylene terephthalate yarns in the weft with a linear density of 167 dtex / f32x2 / 250Z or polyfilamentary yarns of polycaproamide with a linear density of 940 dtex / f32x2 / 250Z, or monofilamentary yarns of polyfilamentary yarns of polycaproamide with a diameter of 0.2-0.5 mm, optionally selected, the cloth has a 1/3 cross broken twill weave or a plain weave, with a warp-set ranging from 150 to 350 yarns/10 cm, and the number of picks reaching 100-300 yarns/10 cm forming from 200 to 900 pores/cm2, in the threaded areas (ZFS, ZFD) and cross broken twill weave and tabby weave or 2/1 weft-reb areas, with a warp-set ranging from 250 to 450 yarns/10 cm in the selvedge (ZIMS, ZIMD) and the central (ZIC) areas respectively, the cloth areas being reinforced by increasing the warp-set with/without modifying the weave, the cloth areas having a mechanical strength greater by 10-90% than the mechanical strength of the cloth background.