Effects on print quality of varying acrylic binder types in water-based flexographic ink formulations / Sinan Sonmez in COLORATION TECHNOLOGY, Vol. 139, N° 3 (06/2023)  

[article]  inCOLORATION TECHNOLOGY > Vol. 139, N° 3 (06/2023) . - p. 330-337 Titre : Effects on print quality of varying acrylic binder types in water-based flexographic ink formulations Type de document : texte imprimé Auteurs : Sinan Sonmez, Auteur ; Dania Alsaid, Auteur ; Alexandra Pekarovicova, Auteur ; Paul D. Fleming III, Auteur ; Matthew T. Stoops, Auteur Année de publication : 2023 Article en page(s) : p. 330-337 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Cyan Le cyan est, par définition, la couleur primaire complémentaire du rouge, dans la synthèse soustractive des couleurs utilisée en photographie argentique en couleurs et en imprimerie. Encre en phase aqueuse Encre flexographique Formulation (Génie chimique) Liants en phase aqueuse Polyacryliques Index. décimale : 667.3 Teinture et impression des tissus Résumé : The ink industry is one of the world's largest markets due to the increasing demand for printing inks for the packaging industry. Flexography printing is a well-known promising technology for large-area printing due to its high printing speed and roll-to-roll capability to print economically on a variety of surfaces and is used in nearly in all areas of packaging printing. Water-based inks are considered non-toxic, odourless, and more environmentally friendly options compared to solvent-based inks. Therefore, in this article, the goal was to develop new water-based ink formulation with different acrylic binders for flexographic printing on commercial solid bleached sulphate (SBS) board. Five inks were formulated with four different acrylic binders and compared to a commercially available ink to study their performance. The developed inks were investigated with regard to their print qualities and print characteristics. It was found that the binder type influenced some print quality while the effect was not significant for others. Using flexography printed cyan inks, the ink formulated with the highest molecular weight had the lowest print density and the largest tonal value increase (TVI) observed between 40 and 60 tone values. The same ink had the largest mottle values and variation in topography. For values of print contrast and delta gloss at 75°, although differences were observed between average values, data had inconclusive variation and spread around averages, where no conclusive trends or effects of acrylic binder type on these response factors were observed. Print chroma and dot roundness results were equally close for all printed samples. Note de contenu : - Ink formulation - Printing conditions - Table 1 : The optical and physical properties of solid bleached sulphate (SBS) board - Table 2 : The physical and chemical properties of pigment dispersion - Table 3 : The chemical properties of acrylic resins used in ink formulations - Table 4 : A standard water-based flexographic ink formulation - Table 5 : The CIE L*a*b* colour values of printed test samples - Table 6 : Print topography and mottle properties of printed test samples - Table 7 : Dot measurements of 15% screen dots of printed test samples - Table 8 : Print rub resistance properties of printed test samples DOI : https://doi.org/10.1111/cote.12650 En ligne : https://onlinelibrary.wiley.com/doi/epdf/10.1111/cote.12650 Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=39542 [article]

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