These dyes are suitable for {HEAD ~ use} in {TAIL ~ thermographic imaging systems} wherein the leuco dye is in a composition containing a nitrate salt 
in
These dyes are suitable for { HEAD ~ use } in { TAIL ~ thermographic imaging systems } wherein the leuco dye is in a composition containing a nitrate salt
OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH