Patent ID: 8057205
Filing Date: 2011-11-15
Classification: D01D,D04H

Abstract:
1. An apparatus for manufacturing spun-bonded nonwoven fabrics comprising: spinning nozzles for melt-spinning a multiple number of continuous filaments, a quenching chamber for quenching the spun filaments with quench air, a drawing section for drawing the quenched filaments with drawing air, and a moving collector surface for depositing thereon the filaments drawn from the drawing section, wherein the quench air fed to the quenching chamber is divided into at least 2 streams in a vertical direction, the velocities of the quench air are independently controllable in the respective streams, and a ratio of a blowing area of the quench air fed to the quenching chamber ranges from 0.1 to 0.9 in a ratio of the blowing area in the uppermost stream to a total blowing area, wherein an air velocity ratio, V wherein the quench air is introduced to the drawing section formed as a narrow path for working as the drawing air.