What are the differences in the equipment and production process of pet, PP and PVC coils?

What are the differences in the equipment and production process of pet, PP and PVC coils? Enjiadi, a professional pet sheet production line manufacturer, will show you the difference of equipment and production process for pet, PP and PVC sheets!

Pet and PP are produced by extrusion molding machine, PET sheet production line equipment, PVC is produced by extrusion or calendering molding method, sheet extrusion molding machine or calendering production line. Pet needs to be dried and then extruded. PP can be extruded directly. PVC needs to be kneaded and cooled. Usually extrusion molding process: extrusion molding, calendering, cooling, winding, etc., calendering is kneading, cooling, extrusion plasticization, calendering, cooling, winding, etc.