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Insight into IJ-ink/paper interaction using drop spreading model
Authors: Kaplanová Marie | Otáhalová Lenka | Muck Tadeja
Year: 2008
Type of publication: článek ve sborníku
Name of source: Advances in Printing and Media Technology (34th International Research Conference of IARIGAI 2007)
Publisher name: IARIGAI (International Association of Research Organizations for the Information, Media and Graphic Arts Industries)
Place: Zagreb
Page from-to: 1-4
Titles:
Language Name Abstract Keywords
cze Studium interakce mezi inkoustem a papírem pomocí modelu pro rozprostírání kapky In non-impact printing the interaction of ink drop with substrate after impacting the paper surface is important process that determines the print quality. Theories that describe the initial stage of wetting usually assumes ideal solid surface that are far from real surfaces encountered in the printing industry and thus leaving some questions concerning the interaction between inks and substrates opened. cílem práce bylo zkoumání interakce kapalina/papír při dopadu kapky na upravený povrch papíru. Vliv drsnosti povrchu na velikost rychlostní konstanty a povrchového napětí byl sledován jak pro standardní kapaliny, tak pro sledované inkousty. Byl navržen model popisující rozprostírání kapky po povrchu a ověřen pro více natíraných papírů. Dále byl sledován vztah mezi rychlostí rozprostírání a vsakování a charakteristiky kapek tvořených inkoustovopu tiskárnou. U UV-tvrditelných inkoustů nebyla pozorována téměř žádná absorpce do testovaných papírů. Tvar kapky je určen tak určen především rozprostíráním do rovnovážné polohy (pokud nedojde dříve k vytvrzení). natíraný papír, měření kontaktního úhlu, inkoust pro inkjet, interakce inkoust/papír, povrchové napětí
eng Insight into IJ-ink/paper interaction using drop spreading model In non-impact printing the interaction of ink drop with substrate after impacting the paper surface is important process that determines the print quality. Theories that describe the initial stage of wetting usually assumes ideal solid surface that are far from real surfaces encountered in the printing industry and thus leaving some questions concerning the interaction between inks and substrates opened. The primary interest of this investigation is to study the behaviour of the liquid-paper interaction in the event of ink drop impaction on a sized paper surfaces. Relation of rate constant and surface tension on surface roughness using both the standard liquids and the IJ inks were observed and an alternated model for description of drop spreading of liquids was proposed and verified on a range of coated papers. Correlation of spreading rate and imbibition and characteristics of drops formed by inkjet printer were further evaluated. UV-curable inks showed almost no absorption process on tested papers. So the drop characteristics are mainly determined by the spreading to equilibrium, unless the print-to-cure time is short enough the freeze the moving droplet. coated paper, contact angle measurement, inkjet ink, ink/paper interaction, surface tension

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