Recyclable Mono-Material Structures Halve the Sealing Window
European Packaging and Packaging Waste Regulation recyclability requirements are pushing brands toward single-polymer polyethylene and polypropylene pouch constructions. The technical difficulty is unavoidable: when sealant and substrate are the same polymer family they melt at similar temperatures, so the window narrows from roughly 22 degrees to about nine. Machine-direction oriented films and heat-resistant coated outer layers widen it partially at added cost. Lines running near their limits produce more seal defects on these structures, and converters supplying them without addressing the window generate complaints rather than conversions. Trials stall rather than fail outright.
Market Impact: Medical work at 14% of revenue








