nonwoven fabric the fabric was formed according to the apparatus of fig8 the extrusion head employed is illustrated in the cross section of fig7 the fabric produced in this system is very uniform and even with good balance in physical properties ______________________________________set up fig8 ______________________________________a extruder one inch diameter one hp driveb extrusion head fig7 stationary shaft rotating die grooves are in the outside member of the rotary unionc die diameter inches 12 0 numbers of spinnerets 16 spinning holes per 1 0 020 in diameter spinneretd quench ring diameter 14 0 inches______________________________________ orifices 0 06 inches diameter at 1 34 spacing angled 45 degrees downwardl and outwardly ______________________________________extrusion temperature u00b0 f z 1 480 u00b0 f z 2 670 u00b0 f z 3 620 u00b0 f adapter 550 u00b0 f melt tube 600 die heaters 13 ampextruder screw rotation r p m 33 0die rotation r p m 2530 air quench pressure psi 30 winder speed ft min 10 ______________________________________ the hole diameter of the spinneret is preferably between 0 008 34 and 0 030 inches with the length to diameter ratio being between 1 1 and 7 1 this ratio relates to desired pressure drop in the spinneret shaped tubular articles were formed by collecting fibers on the outside surface of a.