Polyester filament yarn dyed under normal pressure method and apparatus for preparation it

摘要

PURPOSE: An apparatus for preparing yarn dyeable under normal pressure in which metallic wire is installed perpendicularly to the surface of a spinneret to pass through a spinneret hole is provided, which can perform uniform dye at low spinning speed without modifying a polymer. CONSTITUTION: This apparatus is characterized in that metallic wire having a diameter of 10 to 15% that of a spinneret is installed perpendicularly to the surface of a spinneret to pass through a spinneret hole, wherein the length from the surface is 0 to 50mm and a spinning speed is 3,000 to 6,000m/min.