Twisting

If one end of the spinning is held and the other end rotates, the yarn can be formed. This process is called twisting. Twisting is the process of using rotary motion to twist the stretched sliver like a towel when washing face, so as to fix the longitudinal connection between fibers. The strip twists around its own axis, called adding a twist. Twisting utilizes the bending and twisting of fibers. Bending can cause winding and twisting. If one end of the strip is fixed and the other end is twisted, a certain tension will result in twisting. If there is no tension, the twist of the fibers may turn into bending, and the fibers will twist into braids. Therefore, tension and torsion are necessary conditions for twisting.

Twisting is a process of winding raw silk into yarn. For example, a yarn is made up of 24 silks. Twenty-four silks need to be intertwined to make the yarn stronger and more delicate. The tighter the winding is, the higher the twist, the more compact the fabric is, the better the sag feeling and the better the fastness. Without twisting, there is no threading, no entanglement between silk and silk, loose cloth surface, poor sag and poor fastness.