PP stands for polypropylene. NW is the abbreviation of nonwoven, which means non-woven or non-woven fabric. It is a non-woven fabric formed by airflow or mechanical web formation of fibers, followed by hydroentanglement, needle punching, or hot rolling reinforcement, and finally finishing. PPNW means non-woven fabric made of PP fiber. Due to the nature of PP itself, the final performance of the fabric is high strength, but poor hydrophilicity. Usually, the process flow of PPNW is spinning into a web and hot rolling reinforcement. Generally, PPNW has a wide range of uses, such as packaging bags, surgical protective clothing, industrial fabrics, etc.