... with Nylon(PA-6, 20D/1F*2 ends)or Rayon. With bright colors and strong flexility, they are ... 120D/150D/200D/450D/600D Polyester Yarn or Rayon Yarn and 140D Nylon that are completely wrapped ... by 68D (or 75D) polyester filament yarn 75D rayon yarn or 70D nylon yarn. The yarn has strong ... Alic Acid), 60°C ,10min.Souring For Nylon,Polyester,Rayon,Acetate&CottonSoda Ash, 1g/l,60°C, 30min.5.Construction ...