Microfiber Synthetic Leather: Environment Friendly Alternative to Real Leather Microfiber Synthetic Leather Manufacturing Process The manufacturing process of microfiber synthetic leather begins with the selection of raw materials like polyester, polyurethane and other chemicals. Polyester fibers are melted and extruded into long filaments of 5–15 denier thickness. These filaments are then cut into staple fibers of 1–3 inches length. The staple fibers are...