S stands for spunbond, spunbond non-woven fabric;

M is meltblown non-woven fabric.

PP stands for polypropylene

In the non-woven process, there is a sandwich material called SMS, which is spunbond, spunbond and spunbond structure. This material has both good spunbond strength and good barrier properties of melt spunbond, and is often used in medical supplies.

SMS non-woven fabric is composed of two processes and production of spunbond and meltblown. , The waterproof performance is concentrated on one material, forming the advantages of strong waterproof performance, good air permeability and effective isolation performance, which can effectively cut off the penetration of bacteria and penetrate into the blood.

SMS non-woven products can effectively prevent cross-infection between doctors and patients, and protect the health of medical staff. SMS offers many advantages over spunlace medical materials in terms of price and barrier properties. In recent years, more modular composite materials technologies, such as SMMS, SSMMS, etc., have been developed to form multi-layer composites, thereby improving product quality while increasing yield.

For spunbond/meltblown non-woven composites, the surface layer (spunbond layer) determines the hand feel, and the inner layer (meltblown layer) improves shielding and filtering properties, thereby improving spunbond/meltblown properties. The comfort, softness and high barrier properties of blow-molded composite non-woven materials are the core, which further improves the core competitiveness of my country's medical non-woven fabric production industry.