Strategy for the development of recycled materials from post-consumer Tetra Pak waste
Alier, 2023
Alier, one of the leading cardboard recyclers, has opened a new line of work focused on the valorization of non-cellulosic waste from the recycling of Tetra Pak packaging. This fraction, known as Polyal, is composed of a mixture of polyethylene and aluminum and presents major limitations for conventional recycling due to its multilayer structure and the difficulty of material separation.
Based on this complex stream, different material typologies were designed using Polyal, with formulations and properties adjusted to meet various technical and application requirements. These alternatives were validated for integration into a wide range of industrial processes, ensuring production compatibility and scalability potential.
The work was completed with a comprehensive characterization of the material from three perspectives—technical, environmental, and experiential—also incorporating finish design and quality perception. Finally, market pathways were defined to guide its commercial introduction, linking each material typology to target applications, performance levels, and criteria for real-world product implementation.






