Plastic Films: Multiple Recycling with Stable Performance
Polyolefin films are used in countless packaging applications. However, every recycling cycle leaves traces in the material and influences processing, stability and quality.
The key question is therefore: Under what conditions can recycled materials be used reliably? In the “MultiRec” project, German Fraunhofer Institute for Process Engineering and Packaging IVV investigates – in tandem with the Fraunhofer IGCV, the University of Hasselt and the Technical University of Wroclaw – polyethylene-based sealing, stretch and shrink films over up to 15 recycling cycles. “We produce new films from recycled material and evaluate web tension, friction and sealability, among other things,” Fraunhofer IVV gave account. “The results show: Polymer type and layer structure determine the extent to which properties change. In addition, additives are demonstrably lost, which can impair further processing – making targeted post-additivation necessary.” At the same time, recyclate could be used stably in multilayer films if it is embedded in a middle layer. “This gives companies a clear orientation for recycling-friendly, resource-efficient packaging solutions and for meeting the PPWR recyclate quotas.” Companies wanting to use the results early on and be part of the project support committee, should contact Fraunhofer IVV.
(Published in GLOBAL RECYCLING Magazine 2/2026, Page 28)
