PROCESS FOR THE MANUFACTURE OF POLYESTER INDUSTRIAL YARN AND CORD MADE FROM SAID YARN AND ELASTOMERIC OBJECTS REINFORCED WITH SAID CORD

摘要

Procedure for the manufacture of Polyester multifilament Yarn substantially, for industrial uses and Tenacity with a minimum of 500 MN / tex,That includes the operacionessucesivas of Extruding a Molten Polymer flow through a large number of cooling Holes spinning filament Yarn, The Mess,Optionally the filaments Stretch and finally collecting, making use of a High Speed spinning 450m / min.Still, the relative viscosity of Polymer flow in the core area in each of the holes in the area of highest Sheath surrounding the core area.The difference in relative viscosity between the nuclear area and the area of Sheath is less than 0.100.