1. make cationic FDY yarn 50D/24F, 75/36, 75/48, 75/72, 100/36, 100/ ... .The cationic polyester yarn is FDY and DTY yarn from 50D to 300D.The nylon FDY and DTY yarn is from ... dope dyed black yarn is FDY and DTY yarn from 50D to 600D.The fire retardant yarn, bamboo charcoal, hygroscopic & quick ... -573-82583737Fax: 0086-573-83227588Mobile: 0086-13928423297 Cationic FDY yarn, 50D/24F