The Poly Coated Paper Alliance (PCPA) has released a new design guide aimed at standardising the manufacture of poly-coated paper packaging. The resource provides a technical framework to ensure that composite packaging—typically paperboard laminated with a thin layer of plastic, such as low-density polyethylene (LDPE)—is designed in closer alignment with the capabilities of modern recycling mills.
Composite packaging has long posed a challenge for the waste sector. While the paper fibre is highly valuable, the plastic barrier coating must be easily separable during the pulping process. If the polymer layer is too thick, or if incompatible adhesives and inks are used, the material is often rejected and sent to landfill or incineration. The PCPA’s new guidelines establish clear parameters for polymer-to-fibre ratios, helping packaging converters design products that can be successfully processed.
For UK packaging converters and Turkish recyclers, this development highlights a broader global convergence towards strict design-for-recycling standards. UK converters exporting to international markets or supplying multinational brands must increasingly align with these standardised templates to ensure compliance with international circular economy expectations. For Turkish recyclers, particularly those processing imported paper and plastic waste streams, better-designed composite packaging at the source means cleaner recovered material. When paper mills can cleanly separate the LDPE lining, it yields a higher-quality plastic residual stream, reducing contamination and improving the feedstock available for secondary polymer recycling.
As a practical takeaway, packaging designers and converters should immediately review the polymer-to-fibre ratios in their current product portfolios. Aligning designs with emerging international standards now will prevent future market access issues as global recycling mills tighten their acceptance criteria for composite materials.
