Dust-free fabric based on asbestos - is woven from asbestos yarn sheathed in yarn from glass fibres

摘要

A fabric is woven from warp and weft threads comprising a core formed by an asbestos thread sheathed in glass fibre yarn. The material described in parent patent, does not cause dust either when it is manipulated or afterwards. The glass fibres withstand heat up to 600 degrees C and increase the tensile strength of the sheathed material. The asbestos yarn of 2mm dia. when enclosed in the glass fibres is comprissed so that the sheathed yarn has the same dia. and the woven fabric having 350 warp ends and 250 weft ends per metre, similarly causes no dust.