- 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. DECITEX NUMBER OF STRANDS MINIMUM TENACITY GR/DENIER 470 50 7 940 100 7,5