Assessing the Potential of Bio-based Coatings for Secondary Bundle Packaging

Jannes Roman¹*, Gilles Verschueren¹, Peter Slaets² and Marc Juwet^1
1Department of Mechanical Engineering, KU Leuven, Gent, Belgium
²Department of Mechanical Engineering, KU Leuven, Leuven, Belgium
*Corresponding Author: Jannes Roman, Department of Mechanical Engineering, KU Leuven Technology Campus Gent, Gebroeders De Smetstraat 1, 9000 Gent, Belgium.

Published: March 12, 2024

DOI: 10.55162/MCET.06.196

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Abstract  

In recent years, there has been a notable shift from plastic packaging to fibre-based alternatives. Ensuring that fibre-based packaging maintains all functionalities of its plastic counterpart is essential. This research focuses on a specific aspect of this transition: the resistance to water and moisture.

A critical divergence in material properties between LDPE (Low-Density Polyethylene) and fibre-based materials lies in water resistance. The inherent lack of natural water resistance in fibre-based materials underscores the importance of coatings in the success of fibre-based packaging. To address this challenge, two specially designed coatings were developed in collaboration with chosen companies. Following to a promising lab testing phase, a dedicated testbench was constructed for practical real-life evaluations.

Close cooperation with a coating research company played a key role in unveiling the true potential of these coatings. Particularly, a bio-based coating emerged as a viable solution to enhance water resistance in paper packaging.

Keywords: Cobb test; water barrier; Recyclable; coating; sustainability

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