Superfine fiber is mainly divided into superfine natural fiber and superfine synthetic fiber. Superfine natural fiber mainly includes animal fiber (spider silk, silk, leather, animal hair, etc.), plant fiber, etc. Superfine synthetic fibers are mainly polyester, polyamide, polyacrylonitrile, polypropylene, polytetrafluoroethylene and glass fiber and other fiber varieties, the largest output in the industry is polyester and polyamide two kinds of superfine fibers.

Size: both side or one side, thickness 0.4mm 0.5mm 0.6mm 0.7mm