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FLEXO Magazine : March 2011
Technologies & Techniques Inks, Substrates & Interdependency subtle Characteristics Can Breed Dangerous situations By Michael impastato 16 FLeXO MarCh 2011 www.flexography.org Form, Functionality & Integrity • It is imperative to review the compatibility between substrate and ink for every application. • Selection of the ink depends primarily on substrate, then by the pressroom environment, regulatory com- pliance, end-use requirements and graphic require- ments. • Inks should be tested and qualified for the intended package construction, ensuring compatibility with not only the substrate, but all materials of the con- structed package. • The surface of a substrate, along with the impression pressure, plate type and mounting tape type, will determine where the ink comes in contact with the substrate. If the substrate surface is not level, the ink leaves unprinted areas. FLX_March11.indd 16 3/18/11 1:32 PM