TEMPERATURE DISTRIBUTION OF HOLLOW FILAMENT DURING MELT SPINNING

Abstract

The temperature distribution of hollow filament during melt spinning was obtained by simultaneously solving the thermal conductive equation of air and that of polymer.
The result shows that under the condition of transverse cooling air, the temperature distribution of hollow filament forms the asymmetric pattern, but its shape and temperature difference vary from the case of ordinary filament.
The high crimp tendency observed in the polypropylene hollow fiber is considered to be related with the result obtained in this paper.