While flexible packaging has always scored highly on lightweighting in terms of green metrics, its use of incompatible laminate layers has presented problems in terms of end of life disposability, said Innovia.
The mixture of laminates in flexible offerings means that the most realistic options for packs are either landfill or incineration.
However, all this is changing, the company’s Andy Sweetman told FoodProductionDaily.com.
The UK-based firm is developing biobased films with similar properties to polyester materials in terms of transparency and heat resistance to replace PET or metalised layers.
The business development and sustainability manager added it is also forming partnerships with companies to use other bioplastic layers that bring properties such as seal strength and greater moisture resistance.
Using a combination of these materials means laminates are becoming compatible – producing layers that are functional and offer greener end of life possibilities, he said.