Flame resistant fabrics having cellulosic filament yarns
AssigneeSouthern Mills, Inc.
InventorsChristine J. Habicht, Charles S. Dunn, Michael T. Stanhope, Matthew Lucius Colatruglio
Life of this patent
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Abstract
Flame resistant fabrics that have incorporated into them cellulosic filament yarns. The cellulosic filament yarns may be flame resistant (either inherently FR or treated so as to be FR) or non-flame resistant. Fabrics according to some embodiments are formed entirely of cellulosic filament yarns. However, fabrics according to some embodiments include additional yarns to ensure that the fabric complies with NFPA 1971 and/or 2112.
Claims31
A flame resistant fabric comprising first yarns and second yarns, wherein:
- (i) the first yarns consist of filament yarns consisting of non-flame resistant cellulosic material;
- (ii) the second yarn comprise flame resistant spun yarns comprising FR modacrylic fibers;
- and
- (iii) the fabric has a machine and cross-machine direction and a thermal shrinkage of 10% or less in both the machine and cross-machine directions when tested in accordance with ISO 17493 (2000).
A flame resistant fabric comprising first yarns having a first yarn material composition and second yarns having a second yarn material composition different from the first yarn material composition, wherein:
- (i) the first yarns consist of filament yarns consisting of the first yarn material composition, wherein the first yarn material composition consists of flame resistant cellulosic material;
- (ii) the second yarns comprise filament yarns, spun yarns, or stretch broken yarns;
- (iii) the fabric has a machine direction and a cross-machine direction and the first yarns and the second yarns are both provided in at least one of the machine direction or the cross-machine direction of the fabric;
- and
- (iv) the fabric has a thermal shrinkage of 10% or less in both the machine and cross-machine directions when tested in accordance with ISO 17493 (2000).
A flame resistant composite fabric comprising a first fabric attached to a second fabric, wherein the first fabric comprises first yarns having a first yarn material composition and second yarns having a second yarn material composition different from the first yarn material composition, wherein:
- (i) the first yarns consist of filament yarns consisting of the first yarn material composition, wherein the first yarn material composition consists of flame resistant cellulosic material;
- (ii) the second yarns comprise filament yarns, spun yarns, or stretch broken yarns;
- (iii) the first fabric has a machine direction and a cross-machine direction and the first yarns and the second yarns are both provided in at least one of the machine direction or the cross-machine direction of the first fabric;
- and
- (iv) the composite fabric has a thermal shrinkage of 10% or less when tested in accordance with ISO 17493 (2000).
A flame resistant composite fabric comprising a first fabric attached to a second fabric, wherein the first fabric comprises first yarns and second yarns and wherein:
- (i) the first yarns consist of filament yarns consisting of non-flame resistant cellulosic material;
- (ii) the second yarns comprise flame resistant spun yarns comprising FR modacrylic fibers;
- and
- (iii) the composite fabric has a thermal shrinkage of 10% or less when tested in accordance with ISO 17493 (2000).
Dependencies are inferred from the claim text.