CONTINUOUS POLYMERIC FILAMENT YAMS HAVING ENHANCED FIBER UNIFORMITY WITH INCREASED PRODUCTIVITY

摘要

A method and quench apparatus (1 ) for melt spinning of continuous polymeric filament yarns having enhanced fiber uniformity with increased productivity. Polymeric filaments (15) are extruded from a moltem polymeric material (not shown) through the capillaries (not shown) in the spinneret (2). The filaments are cooled in the quench apparatus located underneath the spinneret and comprising a cooling chamber (6) formed of a foraminous section (7a) and a non-foraminous section (7b) and a jacket (8) located around the cooling chamber in spaced apart relationship therewith to form a plenum chamber (9) for a cooling gas (not shown) entering the quench apparatus through a gas inlet (10) provided with the jacket.