Barriers to Laminated Film Recycling: Challenges and Opportunities in Engineering Solutions

Laminated films, extensively used in packaging applications, offer critical properties such as moisture resistance, durability, and mechanical strength, which make them ideal for protecting a wide range of consumer goods. Despite their utility, these materials present significant recycling challenges due to their complex multilayered structures, typically composed of different polymers, metals, and adhesives. This paper aims to explore the principal barriers to the recycling of laminated films, which include material heterogeneity, technical limitations in sorting and processing, and economic constraints that hinder their recovery. Additionally, it examines potential engineering solutions, such as advanced sorting technologies, innovative chemical recycling methods, and the redesign of materials to enhance recyclability. The discussion highlights the importance of a multidisciplinary approach that integrates materials science, process engineering, and policy development to address these barriers effectively.