Similarities and Differences in Structure Formation Processes in Polyester Yarns During Orientational Drawing and High-Speed Spinning. Review

Resumo

We demonstrate the similarities and differences between formation of structural and mechanical properties of polyethylene terephthalate (PET) yarns during drawing and during high-speed spinning (HSS). The orientational drawing process enables a targeted change in structural and mechanical properties of PET yarns. In high-speed spinning, a targeted change in the properties of the yarns to the level attainable in orientational drawing is not possible due to the non-isothermal nature of the process. Studies have shown that the structure formation conditions for the indicated processes need to match better in order to develop an optimized one-step process for obtaining PET textile yarns.