Jute fiber, the second largest natural cellulose fiber, is a new eco-textile material possessing great developing potential with its outstanding characteristics, rich resources, low cost, no-pollution, and so on. However, the single jute fiber is too short to successfully spin, and the technical jute fibers are too coarse and hard to spin high-count yarns, which make them only be used as simple-to-manufacture products at present. So jute fiber must be refine-treated to develop its application as high added ...