What is the key functions of PP spunbond nonwoven in Diapers?

1. Topsheet nonwoven: soft layer in direct contact with baby's skin.                                                                 

2. Backsheet layer: barrier layer that prevents leaks, usually made of a laminate of PP spunbond nonwoven  and polyethylene film.                                                           

3. Core layer: spunbond nonwoven fabric may also be used in the core structure to provide stability and support to the absorbent materials inside the diaper.