- Extrusion of multifilament Polypropylen yarns, spun dyed - Extrusion of multifilament high tenacity Polyamid 6 yarns, spun dyed - For each production, the strands are mixed but it is possible to have them 80 Z twisted. POLYPROPYLEN YARN DECITEX NUMBER OF STRANDS MINIMUM TENACITY GR/DENIER 330 30 4 660 60 4 880 100 4 1100 100 4 2400 200 3,5