Flame resistant fabric with tracing yarns

Abstract

A flame resistant fabric with tracing yarns includes a flame resistant fabric with a first non-tracing yarn, and a second tracing yarn. The first non-tracing yarn and/or the second tracing yarn include flame resistant fibers being selected from the group consisting of inherently flame resistant fibers and treated fibers. When the flame resistant fabric is exposed to heat, flames, long-term excessive UV light, or the like, the first non-tracing yarn is adapted to hold its color and the second tracing yarn is adapted to change colors.

1 . A flame resistant fabric with tracing yarns comprising:
 a flame resistant fabric including:
 a first non-tracing yarn; and 
 a second tracing yarn; 
   wherein said first non-tracing yarn and/or said second tracing yarn comprising flame resistant fibers being selected from the group consisting of inherently flame resistant fibers and treated fibers;   whereby, when said flame resistant fabric being exposed to heat, flames, excessive UV light, or the like, said first non-tracing yarn being adapted to hold its color and said second tracing yarn being adapted to change colors.   
     
     
         2 . The flame resistant fabric with tracing yarns of  claim 1  wherein said non-tracing fibers being solution dyed fibers and said tracing yarn being yarn-dyed. 
     
     
         3 . The flame resistant fabric with tracing yarns of  claim 1  wherein said fabric being selected from the group consisting of: a woven fabric, a non-woven fabric, and a knitted fabric. 
     
     
         4 . The flame resistant fabric with tracing yarns of  claim 1  wherein:
 said first non-tracing yarn being greater than 50% of said yarns in said flame resistant fabric; and 
 said second tracing yarn being less than 50% of said yarns in said flame resistant fabric. 
 
     
     
         5 . The flame resistant fabric with tracing yarns of  claim 4  wherein:
 said first non-tracing yarn being greater than 75% of said yarns in said flame resistant fabric; and 
 said second tracing yarn being less than 25% of said yarns in said flame resistant fabric. 
 
     
     
         6 . The flame resistant fabric with tracing yarns of  claim 4  wherein:
 said first non-tracing yarn being greater than 90% of said yarns in said flame resistant fabric; and 
 said second tracing yarn being less than 10% of said yarns in said flame resistant fabric. 
 
     
     
         7 . The flame resistant fabric with tracing yarns of  claim 1  wherein said second tracing yarn being randomly inserted in the warp direction and/or weft direction of said flame resistant fabric. 
     
     
         8 . The flame resistant fabric with tracing yarns of  claim 1  wherein said second tracing yarn being inserted at regular intervals in the warp direction and/or weft direction of said flame resistant fabric at regular intervals. 
     
     
         9 . The flame resistant fabric with tracing yarns of  claim 1  wherein:
 said inherently flame resistant fibers being selected from the group consisting of: aramids, polyamide imides, melamines, polybenzimidazole (PBI), polyimides, polyphenylene benzodisoxazole (PBO), polyphenylene sulfide (PPS), carbon, Polytetrafluoroethylene (PTFE), polyetherether ketone (PEEK), modacrylic, inherently-FR Rayon, liquid crystal polymers, and combinations thereof; and 
 said treated flame resistant fibers being selected from the group consisting of: FR cotton, FR-treated rayon, and combinations thereof. 
 
     
     
         10 . The flame resistant fabric with tracing yarns of  claim 9  wherein said inherently flame resistant fiber comprising polybenzimidazole (PBI). 
     
     
         11 . The flame resistant fabric with tracing yarns of  claim 1  herein said first and/or said second yarns further comprising non-FR fibers. 
     
     
         12 . A flame resistant fabric with tracing yarns comprising:
 a flame resistant fabric being selected from the group consisting of: a woven fabric, a non-woven fabric, and a knitted fabric;   said flame resistant fabric including:
 a first non-tracing yarn being solution dyed fibers; and 
 a second tracing yarn being yarn-dyed; 
 said first non-tracing yarn being greater than 75% of said yarns in said flame resistant fabric; and 
 said second tracing yarn being less than 25% of said yarns in said flame resistant fabric; 
   wherein said first non-tracing yarn and/or said second tracing yarn comprising flame resistant fibers being selected from the group consisting of inherently flame resistant fibers and treated fibers;   whereby, when said flame resistant fabric being exposed to heat, flames, long-term excessive UV light, or the like, said first non-tracing yarn being adapted to hold its color and said second tracing yarn being adapted to change colors.   
     
     
         13 . The flame resistant fabric with tracing yarns of  claim 12  wherein:
 said first non-tracing yarn being greater than 90% of said yarns in said flame resistant fabric; and 
 said second tracing yarn being less than 10% of said yarns in said flame resistant fabric. 
 
     
     
         14 . The flame resistant fabric with tracing yarns of  claim 12  wherein said second tracing yarn being randomly inserted in the warp direction and/or weft direction of said flame resistant fabric. 
     
     
         15 . The flame resistant fabric with tracing yarns of  claim 12  wherein said second tracing yarn being inserted at regular intervals in the warp direction and/or weft direction of said flame resistant fabric at regular intervals. 
     
     
         16 . The flame resistant fabric with tracing yarns of  claim 12  wherein:
 said inherently flame resistant fibers being selected from the group consisting of: aramids, polyamide imides, melamines, polybenzimidazole (PBI), polyimides, polyphenylene benzodisoxazole (PBO), polyphenylene sulfide (PPS), carbon, Polytetrafluoroethylene (PTFE), polyetherether ketone (PEEK), modacrylic, inherently-FR Rayon, liquid crystal polymers, and combinations thereof; and 
 said treated flame resistant fibers being selected from the group consisting of: FR cotton, FR-treated rayon, and combinations thereof. 
 
     
     
         17 . The flame resistant fabric with tracing yarns of  claim 16  wherein said inherently flame resistant fiber comprising polybenzimidazole (PBI). 
     
     
         18 . The flame resistant fabric with tracing yarns of  claim 20  wherein said first and/or said second yarns further comprising non-FR fibers. 
     
     
         19 . A method of manufacturing a flame resistant fabric with tracing yarns comprising the step of:
 providing a plurality of first non-tracing yarns;   providing a plurality of second tracing yarns; and   creating a flame resistant fabric including said first non-tracing yarns and said second tracing yarns.   whereby; when said flame resistant fabric being exposed to heat, flames, long-term excessive UV light, or the like, said first non-tracing yarn being adapted to hold its color and said second tracing yarn being adapted to change colors.   
     
     
         20 . The method of manufacturing a flame resistant fabric with tracing yarns of  claim 19  wherein:
 said step of creating a flame resistant fabric including inserting said second tracing yarn randomly or at regular intervals in the warp direction and/or weft direction of said flame resistant fabric.