This Deliverable explains the results and outcomes of the recyclability tests carried out during the R3PACK project on the most promising multilayer solutions selected for their barrier and sealing performance, as a tool to assist in decision-making regarding the choice of materials. Recyclability tests were carried out according to the European CEPI Recyclability laboratory test method, Part I – Recycling mill with Conventional process, which enables analysing both recycling process parameters and recycled paper quality parameters. Results were assessed according to 4evergreen Fibre-based packaging recyclability Evaluation Protocol, Part 1, which describes the assessment of the technical recyclability. Regarding flexible packaging, three different pilot reels were subsequently produced, with increased paper ratio and/or bio-based content. First and second reels are considered technically recyclable, while the third reel showed some issues regarding the recycled sheets adhesiveness, probably due to a higher fragmentation of the coating layer. About rigid packaging, six different samples of functionalised cellulosic trays were tested. Trays were produced with a semi-industrial equipment by the wet molding process, using different types and quantities of additives. Two types of trays have a good recycling behaviour and they are technically recyclable with a very good score, while sheet adhesion occurred in the other two samples. Results were deeply commented and possible improvements and next steps were discussed. Potential compostability of one type of trays was studied, with positive results and outcomes.
Bussini et al. (Wed,) studied this question.
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