FILAMENT DRAW JET APPARATUS AND PROCESS

摘要

The present invention is directed to a draw jet for drawing thermoplastic polymer filaments including a drawing slot defined by an entrance member including a converging passageway communicating with a continuing passageway, terminating at an outlet portion, a drawing member including an inlet portion having a drawing gap width of about 2.0 to about 10 mm communicating with the outlet portion of the entrance member, and at least one air nozzle for directing high speed air onto the filaments in a downstream direction positioned between the outlet portion of the entrance member and the inlet portion of the drawing member, and with a nozzle gap width wherein the gap ratio of the drawing gap width to the combined width of all of the nozzle gaps is from about 1.0 to about 10.