Winding and Tow Collection
topic
For filament yarn, spun fibres are wound onto bobbins at speeds up to 6,000 m/min or higher for POY (partially oriented yarn). For staple fibre, filaments from multiple spinnerets are combined into a tow of 50,000–500,000 total denier, collected in cans or directly fed to the staple fibre processing line for drawing, crimping, and cutting.
Role
The collection method determines whether the product is filament yarn or staple fibre and significantly affects the as-spun fibre structure through the tension and speed applied during winding.
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