Migration modeling

Within food contact material legislation, migration modeling is a theoretic approach aimed at calculating the maximum amount of substances which might be transferred to the food, thereby taking into account physical properties of migrants and packaging materials. Applying various simplifications and assumptions, it is calculated e.g. how a migrant acts within the ink film, between the ink and plastic film, and in the direction of the food. Migration modeling has become a powerful tool used to predict migration of small molecules from plastic materials in food packaging applications in the last few years.

With our knowledge on ink related migrants in migration modeling and testing, more realistic parameters can be used for different migrants, which still fulfill worst case assumptions for modeling but are closer to experimental migration test results. This grants more flexibility in migration assessment as the modeling approach can be used as an additional tier in a tiered exposure assessment procedure.


Comparison of migration modeling and test results of printing ink applications
Poster (PDF, 2,3 MB)