In medical non-woven fabrics, the commonly used polymer material is PP, that is, polypropylene is used as a raw material for spinning into a non-woven fabric. Since PP has no hydrophilic groups, it is necessary to spray a very small amount of 0.5% or less on the surface of the non-woven fabric. Water oil agent.
S denotes spunbond, Chinese translates into spunbond nonwoven; M stands for Meltblown, Chinese translates into meltblown nonwoven. In the non-woven fabric process, there is a sandwich structure material called SMS, which is a spunbond-meltblown-spunbond structure. This material combines the advantages of strong spunbond fabric and good barrier properties of meltblown fabric. Medical medicinal materials. The abbreviations you mentioned are not commonly used.
SMP, I think it is a spunbond meltblown composite, using PP material.
SM, is a spunmelt method (Spunmelt)
SSPP is spunbond-spunbond, made of PP material. Typically SS is a two-layer spunbond representation.
