UPM Specialty Materials, Michelman, and BOBST have developed paper packaging using bio-based coatings to help brands comply with EU single-use plastics regulations. The renewable materials provide barrier protection while supporting recyclability.
The collaboration centers on Michelman’s bio-based coating technology. These plant-derived formulations replace petroleum-based plastics traditionally used to protect food products from moisture and oxygen.
Two packaging concepts demonstrate the bio-based approach. The first uses renewable coatings to create moisture and mineral oil barriers for products like tea bags, oatmeal, and sugar stick-packs. The bio-based formulations enable heat sealing across a wide temperature range.
The second concept combines bio-based coatings with lower application weights for oxygen-sensitive items such as cookies and chocolate. This design reduces overall material use while maintaining protective performance.
Iulia Mihai, Senior Scientist at Michelman, highlighted market requirements. “Barrier performance must remain equivalent to existing market solutions, and proposed materials must be fully compatible with current packaging lines,” she explained.
The bio-based coatings work with UPM’s fiber materials without requiring major equipment modifications. This compatibility allows brands to transition from plastic packaging using existing production infrastructure.
Mika Uusikartano, Senior Manager at UPM Specialty Materials, emphasized collaborative development. “Combining our base papers with the right chemistry enables partners to arrive at fit-for-purpose packaging solutions faster,” he said.
The partnership addresses EU Single-Use Plastics Directive requirements affecting packets and wrappers. The directive aims to reduce environmental impact from disposable plastic products.
BOBST contributed application expertise to ensure the bio-based solutions perform reliably at industrial scale. Luca Nespolo, Competence Center Manager at BOBST, noted benefits of integrated development. “When materials and application parameters are developed together, packaging converters can implement new solutions more easily,” he said.
Where applicable, the bio-based packaging concepts support compostability alongside recyclability. This dual capability provides flexibility for different waste management systems.
