SMS non-woven fabric (English: Spunbond + Meltblown + Spunbond Nonwovens) is a composite non-woven fabric. It is a composite product of spunbond and meltblown. It has the advantages of high strength, good filtration performance, no binder and no toxicity. At present, it is mainly used for medical and health labor protection products such as surgical gowns, surgical caps, protective clothing, hand washing clothes, handbags, etc.

The material composition is fiber.

The full name of pp is polypropylene, and the Chinese name is polypropylene. Nw is an abbreviation for nonwoven, non-woven or non-woven. It is a non-woven fabric formed by air-jet or mechanically forming a mesh, followed by hydroentanglement, needle punching, or hot-rolling reinforcement and finally finishing. Ppnw means a nonwoven made of pp fiber. Due to the nature of pp itself, the final performance of the cloth is strong and high, but the hydrophilic properties are poor. Usually pbnw process is spinning into a net, hot rolling reinforcement. Generally, ppnw is widely used, packaging bags, surgical protective clothing, industrial fabrics, and the like.