A Novel Water-Based Ink Varnish System for High-Speed Flexographic Paper Printing: Low Misting Colloid-Based Systems

Year 2025, Volume: 8 Issue: 1, 73 - 82, 11.03.2025

Canan Uraz , Özge Sönmez , Özlen Gökçe Çelik Caner Uzel Aylin Şentürk

https://doi.org/10.58692/jotcsb.1446911

Abstract

In this study, ink misting performance and print resistance properties were obtained and were related to varying ink formulations using combinations of special acrylic emulsions, colloidal, and water-soluble resins. The misting and tackness performance of the two different colloids were investigated using an IGT TackOScope 3 SC. It was observed that acrylic colloids significantly affect the ink misting performance. After choosing the right colloidal resin and the optimum balance with the emulsion and water-soluble acrylic resin has yielded an excellent varnish that can be used in high-speed flexographic machines up to 700 m/min without misting. In industrial trials, 111,600 m of printing was carried out without misting and resolubility problems. In this paper, in addition to developing an ink that can run on high-speed machines, problems such as low print quality, resolubility, dry rub resistance, and tackness were solved and confirmed using industrial tests. From a sustainability perspective, process efficiency increased, and ink and paper waste minimized.

Keywords

water-based ink , printing ink , flexography , colloidal resin , misting , paper packaging

References

• Bhagya, R. S., Sunil, D., Shetty, P., Kagatikar, S., Wagle, S., Lewis, P. M., Kulkarni, S. D., & Kekuda, D. (2021). Water-based flexographic ink using chalcones exhibiting aggregation-induced enhanced emission for anti-counterfeit applications. Journal of Molecular Liquids, 344, 117974. https://doi.org/10.1016/j.molliq.2021.117974
• Chen, J. (2011). Flexographic printing water-based varnish and preparation method thereof (Eur. Pat. Appl. CN102102311A).
• Hayta, P., & Oktav, M. (2019). The importance of waste and environment management in printing industry. EJENS, 3(2), 18. https://dergipark.org.tr/en/download/article-file/826647
• Ito, H., & Suwa-Shi, N. (2018). Water-based ink composition for inkjet recording and coloring material liquid (Eur. Pat. Appl. EP3378907A1).
• Jašúrek, B., Vališ, J., Syrový, T., & Jablonovský, B. (2010). Study of rheological properties and tack of offset printing inks. Science & Technology, 18. https://www.scribd.com/document/604869928/ICJ-04-18-jasurek-valis-syrovy-jablonovsky-2
• Johnson, J. (2008). Aspects of flexographic print quality and relationship to some printing parameters (Master's thesis). Karlstad University, Faculty of Technology and Science, Chemical Engineering. https://www.diva-portal.org/smash/get/diva2:5784/FULLTEXT01.pdf
• Laden, P. (1997). Chemistry and technology of water-based inks (1st ed.). Blackie Academic and Professional. https://www.waterstones.com/book/chemistry-and-technology-of-water-based-inks/p-laden/9789401071901
• Liu, Q., Xie, X., Zhong, Y., Fan, H., & Qv, X. (2021). Research on waterborne printing varnish and anti-adhesion. In Advances in Graphic Communication, Printing and Packaging Technology and Materials: Proceedings of 2020 11th
• China Academic Conference on Printing and Packaging (p. 614). https://doi.org/10.1007/978-981-16-0503-1_88
• Mariappan, D. D., Kim, S., & Hart, A. J. (2020). A precision desktop plate-to-roll apparatus for development of advanced flexographic printing processes. Precision Engineering, 66, 392. https://doi.org/10.1016/j.precisioneng.2020.07.012
• Mingzhi, J., & Qiuju, W. (2019). High-speed printing water-based ink (Eur. Pat. Appl. CN109181403A).
• Mondi Group. (2023, September 21). Sack Kraft paper. https://www.mondigroup.com/en/products-and-solutions/sack-kraft-paper/
• Rentzhog, M., & Fogden, A. (2006). Print quality and resistance for water-based flexography on polymer-coated boards: Dependence on ink formulation and substrate pre-treatment. Progress in Organic Coatings, 57(3), 183. https://doi.org/10.1016/j.porgcoat.2006.08.003
• Sonmez, S., Alsaid, D., Pekarovicova, A., Fleming, P. D. III, & Stoops, M. T. (2023). Effects on print quality of varying acrylic binder types in water-based flexographic ink formulations. Coloration Technology, 139(3), 330‐337.