Fireshield F/R polyester spun yarns are applied in weaving and knitting: it comes out from our flame retardant polyester chips so it has very high LOI(34) now,we produce flame-retardant polyester fibers from 1.5d*38mm to 15d*102mm; flame-retardant polyester filament yarns from 50D to 900D ;single or twisted fr polyester spun yarns from 5s to 60s and the fabrics made from it can pass cfr1615/1616 ,bs5852 etc.