COATED FIRE BARRIERS MADE FROM CORESPUN YARNS-COATED FIBERS COMPRISING THE SHEATH OF THE CORESPUN YARNS

摘要

The invention relates to a fire resistant flame barrier lightweight fabric substrate consisting of a high temperature resistant continuous filament fiberglass core and a low temperature resistant staple fiber sheath treated with a durable or non-durable fire retardant agent prior to yarn formation. The invention also discloses a process for making a fire resistant corespun yarn by treating fibers with fire retardant agent to make the sheath of the corespun yarn.