Fabric and articles having fire-resistance, cut-resistance, and elastic recovery and processes for making same

Abstract

A flame-resistant cut-resistant fabric, and a glove or other article comprising the fabric, the fabric comprising:(a) at least one first yarn comprising at least 50 weight percent heat-resistant polymeric fiber, wherein at least 30 weight percent of the polymeric fiber present in the at least one first yarn is cut-resistant heat-resistant polymeric fiber having a cut resistance of 500 grams force or higher per ASTM F2992-15; and(b) at least one second yarn having a sheath/core construction with a sheath of halogenated self-extinguishing staple fibers and a core comprising at least one continuous elastomeric filament,wherein 60 to 95 weight percent of the at least one second yarn is halogenated self-extinguishing fiber, and the halogenated self-extinguishing fiber is in contact with the at least one continuous elastomeric filament, the second yarn being free or substantially free of inorganic fibers;the fabric having a maximum after-flame time of two seconds or less and weight loss of 5 weight percent of less when tested per NFPA-2112-2018.

1 . A flame-resistant cut-resistant fabric, comprising:
 (a) at least one first yarn comprising at least 50 weight percent heat-resistant polymeric fiber, based on the total weight of the polymeric fiber in the first yarn, wherein at least 30 weight percent of the polymeric fiber present in the at least one first yarn is cut-resistant heat-resistant polymeric fiber having a cut resistance of 500 grams force or higher per ASTM F2992-15; and   (b) at least one second yarn having a sheath/core construction with a sheath of halogenated self-extinguishing staple fibers and a core comprising at least one continuous elastomeric filament,   wherein 60 to 95 weight percent of the at least one second yarn is halogenated self-extinguishing fiber, based on the total weight of the second yarn, and the halogenated self-extinguishing fiber is in contact with the at least one continuous elastomeric filament, the second yarn being free or substantially free of inorganic fibers;   wherein the fabric has a maximum after-flame time of two seconds or less and weight loss of 5 weight percent of less when tested per NFPA-2112-2018.   
     
     
         2 . The fabric of  claim 1 , wherein the at least one first yarn has a sheath/core construction with a sheath comprising the cut-resistant heat-resistant polymeric fiber and a core comprising an inorganic fiber. 
     
     
         3 . The fabric of  claim 1 , wherein the heat-resistant polymeric fiber or the cut-resistant heat-resistant polymeric fiber is aramid copolymer, para-aramid, polybenzazole, polybenzimidazole, polyimide or mixtures thereof. 
     
     
         4 . The fabric of  claim 3  wherein the heat-resistant polymeric fiber or the cut-resistant heat-resistant polymeric fiber is para-aramid. 
     
     
         5 . The fabric of  claim 3 , wherein the para-aramid fiber is poly(paraphenylene terephthalamide. 
     
     
         6 . The fabric of  claim 1 , wherein the at least one first yarn further comprises a flame resistant fiber that is not cut-resistant. 
     
     
         7 . The fabric of  claim 6 , wherein the flame resistant fiber is meta-aramid, polyamide-imide, flame-retardant-treated (FR) cellulose, FR cotton, FR lyocell, or mixtures thereof. 
     
     
         8 . The fabric of  claim 7 , wherein the flame resistant fiber is meta-aramid. 
     
     
         9 . The fabric of  claim 8 , wherein the meta-aramid is poly(metaphenylene isophthalamide). 
     
     
         10 . The fabric of  claim 1 , wherein 80 to 95 weight percent of the total weight of the at least one second yarn is the halogenated self-extinguishing fiber. 
     
     
         11 . The fabric of  claim 1 , wherein the halogenated self-extinguishing fiber is modacrylic fiber. 
     
     
         12 . The fabric of  claim 1 , wherein 5 to 40 weight percent of the total weight of the at least one second yarn is the at least one continuous elastomeric filament. 
     
     
         13 . The fabric of  claim 1 , wherein the at least one continuous elastomeric filament is spandex filament. 
     
     
         14 . The fabric of  claim 1 , wherein the inorganic fiber is metal filament. 
     
     
         15 . The fabric of  claim 1 , wherein the inorganic fiber is glass filament. 
     
     
         16 . The fabric of  claim 1 , wherein the sheath of the at least one second yarn further comprises heat-resistant polymeric fiber. 
     
     
         17 . The fabric of  claim 1 , wherein the sheath of the at least one second yarn further comprises a flame resistant fiber that is not cut-resistant. 
     
     
         18 . The fabric of  claim 17 , wherein the flame resistant fiber is meta-aramid, polyamide-imide, flame-retardant-treated (FR) cellulose, FR cotton, FR lyocell, or mixtures thereof. 
     
     
         19 . The fabric of  claim 18 , wherein the flame resistant fiber is meta-aramid. 
     
     
         20 . The fabric of  claim 19 , wherein the meta-aramid is poly(metaphenylene isophthalamide). 
     
     
         21 . The fabric of  claim 1 , wherein the sheath of the at least one second yarn further comprises an antistatic fiber. 
     
     
         22 . The fabric of  claim 1 , comprising a ply-twisted yarn of the at least one first yarn and the at least one second yarn. 
     
     
         23 . The fabric of  claim 1 , wherein the fabric is a knit fabric. 
     
     
         24 . The fabric of  claim 1 , having co-knit structure of the at least one first yarn and the at least one second yarn. 
     
     
         25 . The fabric of  claim 24  wherein the at least one first yarn and the at least one second yarn are in a parallel relationship to one another in the co-knit structure. 
     
     
         26 . The fabric of  claim 24  wherein the at least one second yarn is a weft insertion in the co-knit structure. 
     
     
         27 . A glove or other article comprising the fabric of  claim 1 .