German researchers have developed a laser-based process to seal paper packaging without using glue or plastic, addressing recycling contamination issues. The Papure project uses carbon monoxide lasers to create secure seals while maintaining paper recyclability. This innovation could significantly improve the sustainability of paper packaging by eliminating adhesive contaminants.
Background
Paper packaging faces recycling challenges due to adhesive contaminants that reduce recycled paper quality. Traditional sealing methods using glues and plastics complicate the recycling process and limit paper's environmental benefits.
- Source
- The Verge
- Published
- Mar 31, 2026 at 12:01 AM
- Score
- 6.0 / 10