Ink manufacturer Zeller+Gmelin, based in Eislingen, Germany, has looked at different methods of avoiding migration through the selection of inks and using the facilities of the company's in-house analysis laboratory. But the ink industry is dependent on the help of the printers to solve the problem and emphasises the need to observe certain basic requirements during the printing process to eliminate migration. After the adoption of the 1935/2004 Directive for packaging in contact with food, Zeller+Gmelin expanded in the analysis of printing ink systems, focusing on the development of low migration inks for raw material control and raw material selection as well as for the internal verification of test samples.
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