... nylon 6 FDY, Catonic FDY, polyester FDY 20D--600D SD, TBR,black color 2. 30/24, 40/12, 40/34 ... cationic polyester yarn is FDY and DTY yarn from 50D to 300D.The nylon FDY and DTY yarn is from 20D to ... yarn, hygroscopic & quick dry FDY and DTY is from 75D to 300D.The fancy ayrn is feather yarns, centipede yarns, paillette yarn ... 6 FDY, Cationic FDY, polyester FDY yarn, 20D--600D, SD,TBR,black color yarn