Content :

The process of extrusion makes the polypropylene material into flat tapes (yarn). The raw material Polypropylene will be extruded after being heated in 190-250 extruder and completely plasticized. A model will form the material as molten film before it get into the cooling water, then, being cut into billet yarn. In the drying oven, the billet tape will be stretched into flat tape, then be formed on hot rollers and be contracted on cold rollers. And finally the winding system will roll the tapes and get ready to weave.