SYENSQO, a provider of materials and chemical solutions, has announced the successful completion of an ambitious recycling initiative.
The firm said trials have proven that multilayer food packaging structures with Ixan polyvinylidene chloride (PVDC) can effectively be recycled into valuable feedstock for other applications within a standard polyethylene (PE) based waste stream.
The trials have been conducted by CSI, a provider of testing and certification services for controlled environments, part of IMQ group.
Federico Baruffi, global marketing manager packaging at Syensqo, said, “Recyclability is the main requirement for food packaging nowadays. Multilayer films possess outstanding properties and are essential in food packaging, having a strong positive environmental impact by reducing food waste.
“However, due to their particular composition and structures, they have previously been considered impractical for mechanical recycling, which is the most common method in the industry. Our tests have now demonstrated that film structures using our Ixan PVDC product are fully compatible with existing mechanical PE recycling. Notably, the resulting recycling can give used food packaging a second life in other applications and open new opportunities for sustainable material management without the addition of any stabilisers.”
Syensqo said PVDC is ‘well known’ to offer the best oxygen and water vapour barrier in food packaging. The tests were performed with structures for high-barrier meat packaging using PE/EVA/Ixan /EVA/PE multilayer films. The impact of the structures on the recycling process was evaluated in comparison to a reference sample of real flexible packaging waste.
The trials were conducted in compliance with EN 13430, which defines the requirements for packaging material recycling in Europe. Syensqo revealed the multilayer Ixan PVDC structures passed all testing without any ‘critical’ issues in grinding, subsequent washing/drying, extrusion/pelletising and injection moulding even at 220°C.
