Process the disordered, horizontally closely connected fibers into a longitudinal order, and have a certain requirement of smooth yarn. It is necessary to turn the bulk fiber 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. The loosening of fiber is to completely remove the horizontal connection between fiber and fiber. However, fiber damage must be minimized. The fiber assembly is to re-establish an orderly 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.
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