US2022002920A1PendingUtilityA1

Flame resistant fabric

Assignee: FRONT LINE FABRICS INCPriority: Jul 1, 2020Filed: Jun 30, 2021Published: Jan 6, 2022
Est. expiryJul 1, 2040(~13.9 yrs left)· nominal 20-yr term from priority
D04B 1/12D10B 2401/022D10B 2401/021D10B 2403/02D04B 1/16D10B 2403/011D10B 2401/13D10B 2331/021D10B 2201/02D04B 1/243D04B 1/246D10B 2401/16D10B 2321/101D10B 2403/0114D10B 2501/04
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Claims

Abstract

A flame resistant fabric is disclosed herein. The fabric comprising blended yarns consists of: 40%-60% inherently flame resistant fibers, 20%-60% non-flame resistant cellulose fibers, and 5%-30% flame resistant aramid structural fibers. The fabric is evaluated by at least the following test methods: ASTM D6413; ASTM F1959; ASTM D3786; AATCC 61 Method A; AATCC 135; ASTM F2700; ASTM 1930; and ASTM 2894. The fabric also meets the ASTM 1506-19a and NFPA 2112-2018 test standard.

Claims

exact text as granted — not AI-modified
What is claimed is: 
     
         1 . A fabric formed of blended yarns comprising:
 40%-60% inherently flame resistant fibers,   20%-60% non-flame resistant cellulose fibers, and   5%-30% flame resistant aramid structural fibers.   
     
     
         2 . The fabric according to  claim 1 , wherein:
 the inherently flame resistant fibers include modacrylic;   the non-flame resistant cellulose fibers include cotton or lyocell; and   the flame resistant aramid fibers include para-aramids or meta-aramids.   
     
     
         3 . The fabric according to  claim 1 , wherein a weight of the fabric is between 4.5 ounces per square yard and 10.0 ounces per square yard. 
     
     
         4 . The fabric according to  claim 1 , wherein yarns forming the fabric have yarn counts between 20/1 and 40/1, or a plied yarn of equivalent weight. 
     
     
         5 . The fabric according to  claim 1 , wherein the fabric has a double knit circular configuration. 
     
     
         6 . The fabric according to  claim 1 , wherein the fabric meets all of the following test methods: ASTM D6413; ASTM F1959; ASTM D3786; AATCC 61 Method A; AATCC 135; ASTM F2700; ASTM 1930; and ASTM 2894. 
     
     
         7 . The fabric according to  claim 1 , wherein the fabric meets the requirements under NFPA 2112-2018 standard. 
     
     
         8 . The fabric according to  claim 1 , wherein the fabric is treated with at least one of:
 anti-microbial solutions, softeners, or anti-static solutions during a finishing process.   
     
     
         9 . The fabric according to  claim 1 , wherein the fabric includes a flat channeled front surface and a rear surface including air-trapping pockets. 
     
     
         10 . The fabric according to  claim 1 , wherein the fabric is configured to promote phobic and philic interactions to wick moisture away from a user. 
     
     
         11 . The fabric according to  claim 1 , wherein the fabric is formed with a knit configuration having a four feed repeat configuration in which every other needle is removed. 
     
     
         12 . The fabric according to  claim 1 , wherein the fabric is formed using a single or plied yarn. 
     
     
         13 . The fabric according to  claim 1 , wherein the fabric is knit in tubular form. 
     
     
         14 . The fabric according to  claim 1 , wherein the fabric is further dyed to color, and the dyeing temperature is less than 220° F. 
     
     
         15 . The fabric according to  claim 1 , wherein the fabric is formed by a knitting machine including a cylinder having at least a 20 inch diameter and at least 600 needle positions. 
     
     
         16 . The fabric according to  claim 1 , wherein the fabric meets all of the following industry testing standards: ASTM 1506-19a and NFPA 2112-2018. 
     
     
         17 . A fabric formed of blended yarns comprising:
 40%-60% inherently flame resistant fibers, the inherently flame resistant fibers including modacrylic;   20%-60% non-flame resistant cellulose fibers, the non-flame resistant cellulose fibers including cotton or lyocell; and   5%-30% flame resistant aramid structural fibers, the flame resistant aramid fibers including para-aramids or meta-aramids,   wherein the fabric has a double knit circular configuration,   the fabric includes a flat channeled front surface and a rear surface including air-trapping pockets,   the fabric is formed as a single or plied count yarn, and   a weight of the fabric is between 4.5 ounces per square yard and 10.0 ounces per square yard.   
     
     
         18 . The fabric according to  claim 17 , wherein the fabric is formed with a knit configuration having a four feed repeat configuration in which every other needle is removed. 
     
     
         19 . The fabric according to  claim 17 , wherein the fabric is knit in tubular form. 
     
     
         20 . The fabric according to  claim 17 , wherein the fabric is formed by a knitting machine including a cylinder having at least a 20 inch diameter and at least 600 needle positions.

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