It solidifies the spinning dope injected into the coagulation bath via spinneret and forms the filaments.

The fiber is washed to remove the coagulant and other impurities attached to the surface.
At the same time, the drafting device stretches the filament to improve its orientation degree and further improves its physical and mechanical properties.

It applies a layer of spinning finish on the fiber surface to improve fiber texture,
eliminate static electricity, and improve the smoothness and processing performance.

It reduces fiber water content and densifies the fiber.

By means of steam heating and mechanical drafting
the orientation degree and crystallinity of the fiber are further improved, thus enhancing the fiber performance.

It winds and packs up the fibers that experienced above five processes.