... close door system (option) Functions and features1. This heat setting plant is suitable for handle yarn like dacron , knitting wool, wool ... , sponge wipes, curtain finalize, spandex coated yarns, cotton, rayon, polyester fiber theory, computer floss silk, sewing thread, knitting line, lace ... make it safe and reliable. 4. This heat setting plant can steam yarn or fabric evenly and accurately through low ...