New generation of inks for rotogravure / Alexandra Pekarovicova in PAINTINDIA, Vol. LII, N° 8 (08/2002)

[article]  inPAINTINDIA > Vol. LII, N° 8 (08/2002) . - p 85-92 Titre : New generation of inks for rotogravure Type de document : texte imprimé Auteurs : Alexandra Pekarovicova, Auteur ; James Atkinson, Auteur ; Jan Pekarovic, Auteur ; Viera Khunova, Auteur Année de publication : 2002 Article en page(s) : p 85-92 Note générale : Bibliogr. Langues : Anglais (eng) Index. décimale : 667.9 Revêtements et enduits Résumé : The environmental and health problems caused by inks containing volatile organic compounds (VOC) call for new solutions in printing ink chemistry and technology. One of the approaches may be hot melt ink, which is ink solid at ambient temperature and liquid at the moment of printing. Such ink contains no volatile solvent to be trapped in ink film or to produce VOC. In this work, hot melt ink for rotogravure printing process based on ethylene vinyl acetate (EVA) chemistry was formulated, analyzed for rheological properties, and printed on publication and packaging substrates. The original inks based on ethylvinylacetate and polyethylene (PE) chemistry were too viscous for rotogravure. The polymer matrix was mixed into the carnauba wax and then the rheology was tested again. Carnauba wax significantly decreased the viscosity of hot melt formulations. Drawdowns were made on publication (supercalendered grade A and lightweight coated) and packaging (SBS board) substrates and then the printability data was collected. The EVA/carnauba wax inks showed slightly higher optical density than PE inks.Print gloss, delta gloss and rub resistance properties were better on FE inks. Also, mottling was lower at FE inks. SBS board exhibited highest print and delta gloss and lowest mottle index Note de contenu : - Printing and printability analysis Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=12400 [article]

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Phase-change inks / Alexandra Pekarovicova in JOURNAL OF COATINGS TECHNOLOGY (JCT), Vol. 75, N° 936 (01/2003)

[article]  inJOURNAL OF COATINGS TECHNOLOGY (JCT) > Vol. 75, N° 936 (01/2003) . - p. 65-72 Titre : Phase-change inks Type de document : texte imprimé Auteurs : Alexandra Pekarovicova, Auteur ; Hrishikesh Bhide, Auteur ; Paul D. Fleming ; Jan Pekarovic Année de publication : 2003 Article en page(s) : p. 65-72 Note générale : Bibliogr. Langues : Américain (ame) Tags : Formulation  Encre  Impression  jet  encre  en  creux  Hot  melt  Changement  phase  Matériau  PCM Index. décimale : 667.9 Revêtements et enduits Résumé : Phase-change, or hot melt, inks are solid at ambient temperature and liquid at the moment of printing. Such inks contain no volatile solvent to be trapped in ink film or to produce Volatile Organic Compounds (VOC). The phase-change inks found application in non-impact printing technology by either thermal transfer or solid ink digital printing. The environmental and health problems caused by inks containing volatile organic compounds, such as toluene, call for new solutions in the rotogravure printing industry. Because of their low VOC content, phase-change inks might be a reasonable solution for gravure printing. Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=5613 [article]

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