Yarn Loosening

Process the messy, horizontally tightly connected fibers into a longitudinal order, and have certain requirements for smooth yarns. It is necessary to turn the block fibers into a single fiber state, release the horizontal connection of the fiber raw materials, and establish a strong end-to-end connection. Vertical connection. The former is called fiber loosening, and the latter is called fiber assembly. 　Fiber loosening is to completely remove the lateral connection between fiber and fiber. However, fiber damage must be minimized. The assembly of fibers is to re-establish an ordered longitudinal connection of the loosened fibers. This connection is continuous, and the fiber distribution in the assembly should be uniform, and at the same time have a certain linear density and strength. 　Fiber assembly requires a certain degree of twist. The assembly process is not completed at one time, it can be completed only after multiple processing such as carding, drafting and twisting.