Abstract: An apparatus for producing a non-woven polymeric fabric web, such as a spunbond web, having filaments of 0.1 to 5 or higher denier with equivalent production rates is provided. A plurality of continuous polymeric filaments are extruded from an extruder and attenuated by a drawing unit that includes a longitudinal elongated slot strategically positioned at an optimum distance very close to the spinneret to increase the filament velocity by reducing air viscous drag on filaments and a drawing unit slot having a lower slot length of approximately 210 mm or less to increase form drag. A web forming table is positioned below the drawing unit for collecting the filaments and forming the filaments into a non-woven fabric web. Filaments of increased tensile strength are created by stress-induced crystallization resulting from higher filament velocity due to increased force on the filaments with less air viscous drag between the filaments and air streams.

Abstract: A process for spinning polymeric filaments into yarn at high spinning speeds for producing yarn of high quality that includes the steps of extruding molten polymer through a spinneret, providing an aspirator at a preselected position relative to the slinneret and, after start up, adjusting the aspirator distance from the spinneret thereby moving the aspirator drawing force closer to the spinneret, forming a yarn path made from the filaments, supplying a finish to the yarn, and drawing the yam up with a take up wheel The spinning speed of the yarn on the take up reel is increased while moving the aspirator containing the drawing force within five to fifty centimeters to the spinneret. Using this method much higher filament velocities can be reached (above 10,000 meters per minute) without breaking the filaments or the yarn.