what is pp spunbond non woven fabric
PP spunbond nonwoven fabric refers to a type of geotextile material made from polypropylene (PP) using a specific production process called spunbonding.
- Polypropylene (PP) is a thermoplastic polymer that is lightweight, resilient and resistant to many chemicals/oils. It is often used in geotextiles.
- Spunbonding is a nonwoven fabric manufacturing technique where molten PP polymers are extruded through fine spinnerets to produce continuous filaments.
- The filaments are then randomly laid onto a moving belt and bonded together (usually thermally) to form a nonwoven fabric web. This bonding holds the filaments in a random orientation.
- Nonwoven means the fabric is not woven from yarns but produced directly from individual fibers or filaments.
- The final PP spunbond fabric is strong, permeable, durable and performs well for functions like separation, soil stabilization, drainage, etc.
- Common applications include erosion control blankets, road construction, landfill covers, drainage layers and filtration.
So in summary, PP spunbond nonwoven fabric refers specifically to the material, production method and end-properties of a polypropylene geotextile made through a spunbonding nonwoven process.
