Printing inks are one of the mostly abundant impurities in plastic packaging waste, impeding the quality of recyclates substantially. Printing inks are also an issue for multilayers where the ink is embedded between the polymers layers. Therefore, a combined deinking and delamination process can become a key technology to increase the recyclates quality, and ultimately the closed-loop recycling rates. The state-of-the-art mainly focuses on the removal of a specific type of impurity. Considering the broad variety in ink/adhesive formulations, fundamental understanding of interactions between the liquid medium and these impurities is highly needed for their effective extraction. This project aims to create a fundamental understanding on the removal of various inks and adhesives by studying pressure and temperature swing solvent extraction using binary solvent systems as a novel approach. This includes generating fundamental physicochemical data by investigating the dissolution/degradation profile of each ink/adhesive component in the liquid medium. Swelling behavior of polymers and mass transfer mechanisms of impurities will also be investigated to achieve effective extraction of various compounds. Additionally, different scavenging systems will be evaluated to prevent re-adsorption of extracted compounds. The optimized process will be assessed for its impact on recovered plastic film quality, and its economic and environmental feasibility, essential for potential scale-up.