Waterproof Laminated Nonwoven Fabric PP‑PE Coated Nonwoven Raw Material About Laminated Laminated nonwoven fabric is a composite material made by using films of materials such as PP (polypropylene) and PE (polyethylene) as the waterproof layer, and high-strength nonwoven fabric as the supporting layer through a lamination process. Manufacturing Process Plastic particles (such as polyethylene PE, polypropylene PP, etc.) are melted into a liquid state by an extruder, then the