Method for melt spinning, stretching, and winding a multifilament thread as well as a device for performing the method

A method for melt spinning, drawing and winding a multifilament thread to form a Fully Drawn Yarn, the method performed in an apparatus having (i) a yarn guide, (ii) a drawing device, (iii) a preparation device, and (iv) a winding device, which are arranged in an order in which the drawing device is disposed after the yarn guide and before the preparation device from a process standpoint, and in which the preparation device is disposed after the drawing device and before the winding device from the process standpoint, the method comprising:

• extruding a plurality of filaments from thermoplastic material;
• cooling the filaments to a temperature below the glass transition temperature of said thermoplastic material;
• in the yarn guide, after cooling the filaments, gathering the filaments to form a filament bundle without adding any fluid;
• in the drawing device which is disposed after the yarn guide and before the preparation device, drawing-off the filament bundle at a draw-off speed in the range above 1,500 m/min;
• in the drawing device which is disposed after the yarn guide and before the preparation device, heating the filament bundle to have a temperature above the glass transition temperature of the thermoplastic material and drawing the filament bundle at a drawing speed in the range above 3,500 m/min;
• in the preparation device which is disposed after the drawing device and before the winding device, preparing the filament bundle with a preparation fluid;
• and
• in the winding device, winding said thread to form a spool.