Flame resistant textile

A flame resistant textile comprising:

• a sateen weave fabric having a plurality of warp yarns and a plurality of fill yarns, wherein the warp yarns and fill yarns have the same fiber content, the fiber content is selected from the group consisting of 100% cellulosic fibers and intimate blends of cellulosic fibers and thermoplastic synthetic fibers, wherein the sateen weave fabric consists of 75-100% by weight cellulosic fibers and 0-25% by weight thermoplastic synthetic fibers, wherein the thermoplastic synthetic fibers are selected from the group consisting of polyesters, polyolefins, polyamides, polyphenylenesulfide, and mixtures thereof, and wherein the sateen weave fabric has an as received thickness of at least 19.5 mils, a thickness of at least 25 mils after 3 home washes at 120° F., an air permeability of at least 60 cfm, and a weight of less than 7 oz/yd2;
• a treatment applied to the sateen weave fabric, wherein the treatment comprises a tetramethylhydroxy phosphonium salt or its condensate and a chemical selected from the group consisting of urea, NH3, guanidines, guanyl urea, glycoluril, and polyamines;
• such that, when the sateen weave fabric to which the treatment has been applied has been heat-cured and oxidized at least a portion of the cellulosic fibers have a pentavalent phosphate compound polymerized therein.