Flexo Printing - Zeller+Gmelin GmbH

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Low MigrationUV Printing Ink Systemsfor Printing of FoodPackagingThe production of legally compliant food packagingrequires the correct printing ink and lacquer systemsto be selected. Based on our latest developments,Zeller+Gmelin presents a new generation of lowmigration UV printing inks for the printing of foodpackaging and labels. These products are distinguishedby their low migration composition coupled with excellentprinting characteristics.All our low migration ink series are formulated inaccordance with the guidelines of the Nestlé GuidanceNote as well as with the Swiss regulation SR817.023.21.UV Flexo PrintingUVAFLEX ® Y71 Series3rd generation low migration UV flexo inks for printingon paper and synthetic substrates for labels, unsupportedfilms, folding cartons and flexible packaging.The series is characterized by its very low odour andimproved wet-rub resistance on synthetic substrates.Analytical-CentreAt Zeller+Gmelin we have at our disposal our own analyticalfacilities, which we established specifically forthe development of low migration printing inks, rawmaterial quality control and for the internal assessmentof test samples. We can assess the migration from ourprinting inks by gas-chromatography (GC-MS) and liquid-chromatography(LC-MS) with mass-spectrography.Naturally we also send each of our low migration inkseries to independent analytical institutes for analysisand evaluation.With this double verification we can offer the maximumpossible product security to printers, brand ownersand consumers. Analytical results have consistentlyproven that if our low migration ink series are professionallyhandled, then it is possible to meet or evenclearly undercut the legal 10 ppb migration limit inmigration tests with 95% ethanol.Migration TypesMigration byPenetrationMigration by Contact(Set-Off)Migration byEvaporationMigration byDistillationMigration from the printedside of the substrateto the unprinted side.Migration from the printedto the unprinted sideof the substrate in a stackor reel (set-off).Migration by evaporatingvolatile substancesthrough heating (e.g.cooking, baking).Migration by steam-distillationthrough cooking,baking or sterilization.4
Low MigrationUV Flexo Printing forFood PackagingUVAFLEX ® Y71With the new UVAFLEX ® Y71 series we present our 3rdgeneration of low migration UV flexo inks for the printingof food packaging and labels.The UVAFLEX ® Y71 series is designed for the universalprinting of papers and films and therefore this ink seriesserves a wide range of potential applications.The series is characterised by its very low odour andimproved wet-rub resistance on synthetic substrates.UVAFLEX ® Y71 is well-qualified for producing flexiblepackaging and self-adhesive-labels, in-mould-labels andshrink-sleeve-labels, which are often used in the rangeof food packaging.Numerous printing tests and analytical results prove thatif the inks are professionally handled it is possible toundercut the 10 ppb migration limit in migration testswith 95% ethanol.Applications• self-adhesive-labels• shrink-sleeve-labels• in-mould-labels• wrap-arounds• flexible packaging• folding boxesProperties• low migration• good adhesion• fast curing (highly reactive)• very good printability• high gloss• good scratch- and rub resistance• low odour• suitable for laserprinting• suitable for overvarnishing and hot foil stamping• ready for thermal transfer- or thermal direct printing• colourimetrically supported• Nestlé-compliant• VOC-freeOpaque WhiteUVAFLEX ® Y71-X55001• Low migration standard opaque white with a highdegree of whiteness and good opacity.UVAFLEX ® Y71-X55004• Low migration opaque white for shrink-sleeveapplications – not suitable for overprinting!LC-MS5
Page 1 and 2: UVPrinting Inks forFlexo Printing
Page 3: Mixing withMonopigmented InkMixing
Page 7 and 8: Adhesive SystemsUVAFLEX ®Cold Foil

Flexo Printing - Zeller+Gmelin GmbH

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