1 Introduction Yarn can be classified either as staple yarns or continuous filament yarns.[1] Continuous filament yarns are made by extruding a polymer solution or melt through a spinneret, which solidifies into a solid fiber through solvent evaporation or cooling, respectively.[2] The extrusion process is capable of forming continuous filament with lengths of hundreds of meters, which can be twisted to form continuous filament yarns.[3] Staple yarns on the other hand are made by twisting...
