Les emballages alimentaires modernes, notamment les papiers-cartons et les matériaux allégés, peuvent présenter des microfuites, même lorsque le matériau de base est très peu perméable aux gaz. Ces défauts, souvent générés lors de la fabrication, du formage ou du scellage, peuvent compromettre la conservation et la sécurité des produits. L’identification et le contrôle précis de ces défauts nécessitent des méthodes adaptées, comme l’usage de gaz traceurs (CO₂ ou hydrogène).
Le CTCPA accompagne les industriels dans l’évaluation et le contrôle des emballages pour garantir leur étanchéité et la qualité des produits.
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