Influence of Surface Chemical Composition on UV-Varnish Absorption into Permeable Pigment-Coated Paper
| Autor: | Pedro Fardim, Roger Bollström, Martti Toivakka, Kenth Johansson, Maiju Pykönen |
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| Rok vydání: | 2010 |
| Předmět: |
Coated paper
Chemistry General Chemical Engineering Varnish Analytical chemistry General Chemistry Porosimetry Industrial and Manufacturing Engineering Secondary ion mass spectrometry Contact angle stomatognathic diseases Chemical engineering X-ray photoelectron spectroscopy visual_art visual_art.visual_art_medium Fluorocarbon Absorption (chemistry) |
| Zdroj: | Industrial & Engineering Chemistry Research. 49:2169-2175 |
| ISSN: | 1520-5045 0888-5885 |
| DOI: | 10.1021/ie900992t |
| Popis: | Fluorocarbon, organosilicon, and hydrocarbon plasma coatings were used to modify the surface of permeable pigment-coated paper, and their impact on UV-varnish absorption was investigated. According to mercury porosimetry results, the plasma coatings had no influence on the porous structure of the paper. X-ray photoelectron spectroscopy (XPS) and time-of-flight secondary ion mass spectrometry (ToF-SIMS) results showed characteristic surface chemical compositions for each plasma coating. The fluorocarbon plasma coating increased the UV-varnish contact angles significantly, whereas the hydrocarbon plasma coating had no clear influence. When the UV varnish was applied with a flexography unit including nip pressure, the role of surface chemical composition seemed to become minimal. The viscosity of the UV varnish was shown to impact the absorption rate with and without external pressure. |
| Databáze: | OpenAIRE |
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