... long placed humidityApplied types: Cotton yarn, Flax yarn, High twist yarn, Polyester sewing thread, Slub yarn, Core-spun spandex yarn………WeavingYarn heat setting,reduces kinky ... stable, reduce contraction and deformation of after treatment.Underwear, garment piece heat settingApplied types Swan velvet, Shearing fabric, Seam-free underwear ...