Starlinger - recycling technology for Fibre & Non-wovens

PP spunbond (SB) nonwovens dominate the large hygiene market, as well as the building market segment. They are easy to process and require no degassing unit at the recycling line. PP SMS nonwovens, a combination of two layers spunbond with one layer meltblown nonwovens inside (spunbond-meltblownspunbond), require a degassing unit and an underwater pelletiser in case the MFI is > 80 g/10 min. PP meltblown nonwovens are made of fibres that are smaller in denier than those found in other nonwovens. Due to the high MFI, an automatic strand pelletising unit is required. PE/PP bicomponent spunbond nonwovens: The sheath (outside) is PE for softness, the core (inside) is PP for strength. A special screw geometry is required for the recycling process. PET nonwovens are best recycled on the recoSTAR dynamic recycling line with high vacuum degassing. If the IV is increased in the SSP afterwards, a higher reuse percentage is possible. PP/PE nonwovens with paper and cellulose: With this material the challenge in the recycling process lies in the proper filtration.

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