1. Relaxation, setting, and adding wet. 2. Increase strength of yarn, reduce fracture Functions and featuresCotton yarn, wool yarn , polyester&cotton blended yarn, polyester yarn, spandex, yarn sewing thread, artificial fiber yarn, acrylic tow, mesh knitted fabric (curly fiber) etc. are all need to adding humidity to achieve the best effects, temperature from 50 °C to 140 °C ."JM" Humidify ...