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wet spinning
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A step-by-step diagram shows the wet spinning process for polymeric fibers, beginning with a polymer solution pumped through a filter into a spin bath, forming fibers via a spinnerette. The fibers move through stages labeled coagulating, stretching, washing in a wash tank, applying fiber finish, and drying on heated drum rolls. The finished fibers are either wound into a take-up package or cut into pieces. Arrows and labels indicate solvent diffusion and each stage of the process.
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wet spinning

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A step-by-step diagram shows the wet spinning process for polymeric fibers, beginning with a polymer solution pumped through a filter into a spin bath, forming fibers via a spinnerette. The fibers move through stages labeled coagulating, stretching, washing in a wash tank, applying fiber finish, and drying on heated drum rolls. The finished fibers are either wound into a take-up package or cut into pieces. Arrows and labels indicate solvent diffusion and each stage of the process.
Figure 1: Stages in the wet spinning of polymeric fibres.

Wet spinning is a method of producing man-made fibers where a polymer is dissolved in a solvent to create a viscous liquid. This liquid is then extruded through a spinnerette into a coagulation bath, typically water. In the bath, the solvent diffuses out of the extruded material, and water diffuses in, causing the polymer to solidify into a fiber. This process was first used for rayon and allows for the production of many fibers simultaneously, making it economical due to high overall productivity. The fibers can be stretched during or after coagulation to orient them. After washing and applying a finish, the fibers are dried and wound onto spindles as continuous filaments or cut into staple lengths.1

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2 Britannica Sources
  1. man-made fibre - Solution spinning
  2. man-made fibre - Melt spinning

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