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FLEXO Magazine : April 2013
ROLES IN PACKAGE PRODUCTION AREAS OF FOCUS CONSIDERATIONS Package Design and Prepress End-Use of Packaging • Non-food contact • Indirect food contact • Food type End-Use Processing • Microwaveable/bakeable • Retort/Pasteurization Substrate Specifcations Desired for Package • Absolute barrier properties • Functional barrier properties • Filling, packing, storage, distribution Printer/Converter Set Materials Specifcations for Materials Suppliers. • Verify materials needed to manufacture desired package • Substrates • Ink, coating, varnish, adhesives Potential Sources of Contamination • Press wash • Rollers • Aniloxes • Films • Spray powder • Press lubricants • Fountain solutions • Improperly functioning curing unit • Maintenance chemicals Curing • Follow all cure/drying specifcations • Ensure proper handling after printing Follow Regulatory Guidelines and Good Manufacturing Practices •EU • Switzerland • USFDA • China • Japan • EuPIA • NAPIM • Australia/New Zealand • CFIA (Canada) Material Suppliers (inks, coatings, substrates) Raw Material Verifcation • Should meet regulatory guidelines Manufacturing • Follow Good Manufacturing Processes Lab Testing • Ink compliance • Curing/drying parameters RISK ASSESSMENT For every specifc packaging and label application, it’s ad- visable to assess the risk of migration. This is especially rec- ommended for packaging where no absolute barrier exists. Organoleptic testing for taste and odor; migration modeling; practical migration tests on the printed packaging material; and calculation of possible worst case scenarios help create 24 FLEXO APRIL 2013 www.flexography.org