No more glue: Researchers use lasers to seal paper packaging
A new process developed in Germany uses carbon monoxide lasers to seal paper packages, eliminating the need for plastic adhesives that hinder recycling.
While paper is a more sustainable packaging alternative than plastic, its recycling process is often hindered by the adhesives and plastics used for sealing. These additives contaminate the material and lower the quality of recycled paper. To address this, researchers from four Fraunhofer institutes in Germany have developed a breakthrough method that uses carbon monoxide lasers to seal paper without any glue or plastic.
The system, known as the Papure project, integrates expertise from various fields, including polymer research, packaging engineering, and laser beam technologies. This innovation allows for secure, airtight seals, enabling a cleaner and more efficient recycling cycle for the packaging industry worldwide.
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