Improved Method and apparatus for Spinning and stretching a Thermoplastic with high Tenacity monofilament tensile and uniformity and the filaments so produced

摘要

The present Invention relates to an improved process which includes the steps of spinning, Rapid Cooling With Water and a substantial stretch of monofilament denier Thermoplastic,At least first and second stages of drawing, the monofilament rapidly cooled with liquid is advanced in the first stage of drawing through a Steam boiler or Evaporator,In an atmosphere of high temperature Steam and advanced to the second stage of drawing through an area with a Radiant heater.The proportion of total Stretch is at least approximately 5.5X, monofilament after Quick Cooling Water comes in contact with surfaces that include Roller Guides and Food,And then enters the Evaporator; the Improvement includes: provide water at the surface of the monofilament before putting it in contact with the guides and surfacesIn an amount of at least 10 percent by weight based on the dry weight of the Monofilament.