Fire resistant fabric made of balanced fine corespun yarn

Abstract

Fine textured fire resistant flame barrier fabrics for use as mattress and pillow ticking, bedspreads, mattress covers, draperies, upholstery, protective apparel, tenting, awnings, field fire shelters, for use as a substrate or backing for coated upholstery fabrics and as a flame barrier for use beneath upholstery fabric. The fabric is formed from a corespun yarn comprising a high temperature resistant continuous filament fiberglass core and a low temperature resistant staple fiber sheath surrounding the core. The core comprises about 20% to 40% of the total weight of the corespun yarn while the sheath comprises about 80% to 60% of the total weight of the corespun yarn. The total size of the corespun yarn is within the range of about 43/1 to 3.5/1 conventional cotton count. This corespun yarn may be woven and knit in fine, non-plied form and extends the range of fineness of fabrics below heretofore achievable limits.

Dependencies are inferred from the claim text.