Sealing Paper Packaging Without Adhesives
16 hours ago
- #Heat Sealing
- #Laser Processing
- #Sustainable Packaging
- Laser irradiation with a CO laser creates fusible cleavage products on paper, acting as a natural adhesive for heat sealing without synthetic materials.
- Bond strength is a critical measure of seam quality, influenced by laser parameters, sealing settings, and material properties like fiber direction.
- The process is integrated into a roll-to-roll demonstrator system that produces adhesive-free paper bags, aiming for ten packages per minute by September 2026.
- Technology allows for modular implementation in existing production lines, attracting packaging industry stakeholders and promoting 'green packaging'.
- The project will be showcased at Interpack 2026, with plans for large-scale development in collaboration with industry partners.