Reinforced Flame Resistant Fabrics

A flame resistant fabric having a warp direction, a weft direction, and a fabric weight, the flame resistant fabric comprising warp direction yarns and weft direction yarns, wherein:

• a. the warp direction yarns comprise warp body yarns having a fiber blend comprising a wt. % of non-FR synthetic fibers and at least 60 wt. % cellulosic fibers;
• and
• b. the weft direction yarns comprise:
• i. weft body yarns having a fiber blend comprising a wt. % of non-FR synthetic fibers and at least 60 wt. % cellulosic fibers;
• and
• ii. weft reinforcement yarns having a fiber blend comprising 30 wt. % to 100 wt. % non-FR synthetic fibers, wherein the fiber blend of the weft reinforcement yarns comprises at least two times the wt. % of non-FR synthetic fibers in the fiber blend of the weft body yarns,
• wherein the weft direction yarns comprise a total wt. % of non-FR synthetic fibers and wherein, when a fabric tear strength in the weft direction of the flame resistant fabric and a fabric tear strength in a weft direction of a comparative flame resistant fabric (i) having substantially the same fabric weight, (ii) formed of the warp body yarns and the weft body yarns, and (iii) devoid of the weft reinforcement yarns was measured in Newtons and pursuant to ISO 13937-2, a strength percentage increase in fabric tear strength in the weft direction of the flame resistant fabric over the fabric tear strength in the weft direction of the comparative flame resistant fabric was greater than a fiber percentage increase of the total wt. % of non-FR synthetic fibers in the weft direction yarns of the flame resistant fabric over the wt. % of non-FR synthetic fibers in the weft body yarns of the comparative flame resistant fabric, and
• wherein the flame resistant fabric has a char length of less than 100 millimeters when tested pursuant to ISO 15025:2000.