The objective of Sol-Rec 2 is to develop and implement innovative sorting and recycling strategies for dealing with multi-layer material waste containing mixtures of polymer and metal. Novel sorting techniques including digital watermarks will be trialled to facilitate rapid and efficient sorting of multi-layer packaging. The project team will leverage experience from working in the field of ionic liquids and deep eutectic solvents to develop a toolbox of novel green solvent systems that will delaminate these multi-layer materials and selectively dissolve specific polymers enabling efficient separation and recovery of the multiple components of packaging materials. Sol-Rec2 will ultimately produce high purity plastics and aluminium for reuse – providing recyclers with a valuable income stream, minimising the environmental impact and carbon footprint associated with virgin plastics production and bauxite mining/refining whilst also making a valuable contribution to the circular economy