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The versatility of water-based inks – history and future

The versatility of water-based inks – history and future. Overview. Overview. History of water-based inks. Applications. Evolution. 1890. 1938. A niline printing inks (solvent). Wrapping paper. First water-based p rinting inks on protein- based , natural resins.

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The versatility of water-based inks – history and future

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  1. The versatilityofwater-basedinks – historyandfuture

  2. Overview

  3. Overview

  4. Historyofwater-basedinks Applications Evolution 1890 1938 Aniline printinginks (solvent) Wrappingpaper First water-basedprintinginks on protein-based, naturalresins Cardboardandindustrialpapersacks 1950 Start of polymer chemistry: modifiednaturalresins Cardboardandindustrialpapersacks 1980 Start ofacrylatchemistry: Resinsanddispersions Cardboardandindustrialpapersacks Wrappingpaper, giftwraps, envelopes napkins, bakerybags, liquid foodpackaging, simple film printing 1990 Emission regulations:Increaseddemandforwater-basedinks! 2015 Quality film printing self-crosslinkingsystems/hybrid

  5. Water-basedinkstoday Currentapplicationsofwater-basedinks Flexography: Rotogravure: Image source: Follmann GmbH & Co. KG Image source: Doneck Network

  6. Water-basedinkstomorrow Food packaging Deepfreeze Laminatedpackaging Corona Inline Hybrid systems Fine Anilox-Rollers PU-chemistry Doctor Blades Self-crosslinkingdispersions Betterdryingconditions Technical machineparameters Inkformulationtechnology Image source: Doneck Network

  7. Overview

  8. Composition of a water-based ink 2-8 % 30-50 % 10-30 % 5-15 % Additives Water Extender Binder Base Pigment

  9. Pigments in water-based inks Carbon black Titaniumdioxide Organic – processed Magenta PR 57:1 Cyan PB15:3 Yellow PY 13 Lithol pigment Copper(II)phtalocyanine Azo pigment Image source: Flint Group

  10. Components of water-based inks Binders Additives Waxes Surfactants (wettingagents) Defoamers Retarders Biocides • acrylic or styrene-acrylic copolymer • PU + Hybrid emulsions

  11. Overview

  12. ApplicationMethods • Flexography • Rotogravure • Bothprintingtechnologiescover a broadvarietyof different applicationareaswithspecificinkseries.

  13. Product Range Flexography • pre-print • post-print • Corrugatedboard • Paper • Tissue • Film & Foil • bakerybags • paperbags • newspapers Substrate Impression cylinder Printingink • napkins • tablecloths • kitchentowels • toilettepaper Printingplate • plasticbags • flexible packaging Bildquelle: „Technik des Flexodrucks“, 4. Auflage, DFTA und Prof. K.-H. Meyer

  14. Product Range Rotogravure • furniturefoils • floor-covering/laminate • Decorprinting • Giftwrapper • Wallpaper Impression cylinder Substrate Printingink • paper/non-woven • vinyl Gravurecylinder Bildquelle: „Technik des Flexodrucks“, 4. Auflage, DFTA und Prof. K.-H. Meyer

  15. Primer & Coatings • Primer • EffectCoatings • matt & glosslaquers • FunctionalCoatings • antislipcoatings • barriercoatings

  16. Overview

  17. Broad Technical scope Absorbentsubstrates Non Absorbentsubstrates Market requirements for technical performance can be achieved, eg printing speed, print resistance, bond strength. Water-based inks gain ground as a complementing technology in this application field. Technology is characterised by High colour strength coloured bases. Consequently low ink film weights can be applied with associated advantages. • Good print hold out, cost effectiveness, excellent printability characterize water-based inks. Traditional limitations are being overcome e.g. high speed printing, chemical resistances. • Can be used advantageously in combination with other ink technologies and print techniques in a wide range of applications.

  18. SociallyandEnvironmentallyresponsible Environmental profile Workplacesafety Water-based inks are non flammable and do not require special workplace precautions relating to flammability. Solvent contents are reduced to a minimum - need for surveillance of workers health with respect to solvent exposure is low. • VOC emissions are very low. • Waste water produced can be readily cleaned limiting the impact of water consumption. • Work to develop monomers produced from bio-reactors is well advanced, leading to a possibility to decrease dependence of fossil fuel based feedstocks in the future.

  19. Competitive „Total Cost“ Profile • Emissions monitoring costs • Insurance costs • Waste Disposal Costs • Diluent cost • Ink Cost • Invest-ment costs

  20. Overview

  21. Summary andconclusion Water-basedinksgain in importance: • Modern inkformulationsandadjustedprinting/technicalparameters open up a broadvarietyofapplications. • Water-basedinksare in accordancewithEuPIAExclusionPolicyandcanfulfillregulatoryrequirementsforfoodpackagingifneccessary. • Main applicationsareflexoandgravureprintingwith a large productrangeincludinglaminatedfoodpackaging. • Water-basedinksoffer a positive environmental profile. • Due totheircompositionhandlingofwaterbasedinksis non-critical. • Total costprofileiscompetitive.

  22. Summary andconclusion Water-basedinksarealreadybeingusedwidely due totheirstrengthstoday.In thefuturethey will taketheirrightfulplace in eachapplication. Image source: ACTEGA Colorchemie

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