Partly oriented tow or partially oriented yarn is made by zigzag the filament-receiving cylinder winds at a velocity slightly elevated than the speed of extrusion. Filaments from a hefty number of spinning positions are collected to form tow, which can later be cut into fastener. 

If the fiber is to be used as incessant filament yarn, the filaments are cut onto metal cylinders, bobbins or paper tubes. The fineness or diameter of spun yarn, filament yarn or monofilament is nominated by the term denier, which is the mass in grams of 9,000 meters of yarn or filament. 

Yarns for attire and home furnishings typically have deniers ranging from 80 to 160. Polyester fiber drawing and spinning utensils can usually be used to produce other melt-spun fibers like nylon 6 and nylon 66, with moderately minor modification. 

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