	US 11,946,173 B2
	Yarns and fabrics including modacrylic fibers
Robert Charles Earhart, Mebane, NC (US); Mia Rauston Alberto, Greensboro, NC (US); and Christopher Brent Martin, Winston-Salem, NC (US)
Assigned to Glen Raven, Inc., Glen Raven, NC (US)
Filed by Glen Raven, Inc., Glen Raven, NC (US)
Filed on May 20, 2020, as Appl. No. 16/878,989.
Prior Publication US 2021/0363672 A1, Nov. 25, 2021
Int. Cl. D03D 15/54 (2021.01); D03D 1/00 (2006.01); D03D 15/283 (2021.01); D03D 15/47 (2021.01); D03D 15/513 (2021.01); D03D 15/533 (2021.01)

CPC D03D 15/513 (2021.01) [D03D 1/00 (2013.01); D03D 15/283 (2021.01); D03D 15/47 (2021.01); D03D 15/533 (2021.01); D03D 15/54 (2021.01); D10B 2321/101 (2013.01); D10B 2331/021 (2013.01); D10B 2401/16 (2013.01); D10B 2501/04 (2013.01)]

22 Claims

1. A fabric comprising:

a plurality of yarns, wherein each yarn of the plurality of yarns comprises fibers, and the fibers comprise solution-dyed modacrylic fibers, solution-dyed meta-aramid fibers, anti-static fibers, and optionally solution-dyed para-aramid fibers,

wherein the fabric comprises:

40% to about 50% solution-dyed modacrylic fibers by weight of the fabric;

about 50% to about 60% solution-dyed meta-aramid fibers by weight of the fabric;

about 0.1% to about 2% anti-static fibers by weight of the fabric; and

about 0% to about 10% solution-dyed para-aramid fibers by weight of the fabric,

wherein the fabric meets the requirements set forth in ASTM F1506, and

wherein the fabric has a protection to weight ratio of 1.5 or more (arc rating (cal/cm²) as measured in accordance with ASTM F1959:weight of the fabric).