Set-off of non volatile compounds from printing inks in food
Migration from different multilayer materials containing inks to 2 food simulants was performed, the effect of ink transference and how it was affected by the presence of lacquers in the material was studied. A total of 17 migrants coming from inks due to set-off phenomena were found.
The number of migrants decreased dramatically when a lacquer was added and especially when ink was placed under a PET layer. Some new migrants appear by the reaction between ink and lacquer. In another substrate, when a lacquer was added some migrants decreased but other migrants present both in lacquer and ink increased. An article of the research is published in Dyes and Pigments.
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