US Patent 7402538 Fabric for protective garments

This invention relates to heat and flame resistant single ply fabric for use as a single or outer layer of a protective garment for a wearer. The fabric comprises at least one warp system and at least two weft systems. The warp system comprises a blend of 60 to 90 wt-% poly-m-phenylenisophtalamid (meta-aramid) and 10 to 40 wt-% poly-p-phenylenterephtalamid (para-aramid). The first of the at least two weft systems comprises a blend of 85 to 95 wt-% meta-aramid and 5 to 15 wt-% para-aramid. The second of the at least two weft systems essentially comprises para-aramid.