Jari Räsänen
Stora Enso
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Publication
Featured researches published by Jari Räsänen.
Journal of Adhesion Science and Technology | 2010
Mikko Tuominen; Johanna Lahti; Juho Lavonen; Tapani Penttinen; Jari Räsänen; Jurkka Kuusipalo
Polymer and paper structures have been successfully utilized in several fields, especially in the packaging industry. Together with barrier properties, printability is an important property in packaging applications. From the point of view of printing, the dense and impervious structure of extrusion coatings is challenging. Flame, corona and atmospheric plasma treatments were used to modify the surface of low density polyethylene (LDPE) and polypropylene (PP) and the influence of these surface modifications on print quality, i.e., toner adhesion and visual quality was studied. The traditional surface treatment methods, i.e., flame and corona treatments, increased the surface energy by introducing oxygen containing functional groups on the surfaces of LDPE and PP more than helium and argon plasma treatments. Only in the case of flame treatment, the higher surface energy and oxidation level led to better print quality, i.e., toner adhesion and visual quality, than the plasma treatments. The morphological changes observed on LDPE surface after flame treatment are partly responsible for the improved print quality. Atmospheric plasma treatments improved the print quality of LDPE and PP surfaces more than corona treatment. The electret phenomenon observed on LDPE and PP surfaces only after corona treatment is the most likely reason for the high print mottling and low visual quality of corona treated surface.
Industrial & Engineering Chemistry Research | 2013
Jinto M. Anthonykutty; Kevin Van Geem; Ruben De Bruycker; Juha Linnekoski; Antero Laitinen; Jari Räsänen; Ali Harlin; Juha Lehtonen
Industrial & Engineering Chemistry Research | 2014
Ruben De Bruycker; Jinto M. Anthonykutty; Juha Linnekoski; Ali Harlin; Juha Lehtonen; Kevin Van Geem; Jari Räsänen; Guy Marin
Archive | 2010
Ali Harlin; Tapani Penttinen; Jari Räsänen; Olli Aaltonen
Archive | 2005
Jari Räsänen; Johanna Lahti; Antti Savolainen; Jurkka Kuusipalo
Archive | 2003
Jari Räsänen; Seppo Karine
Archive | 2013
Olavi Imppola; Jouni Matula; Jussi Matula; Karri Tahkola; Matti Väkeväinen; Isto Heiskanen; Jari Räsänen
Archive | 2011
Jari Räsänen; Jouni Matula
Archive | 2011
Ali Harlin; Jari Räsänen; Tapani Penttinen
Archive | 2009
Jari Räsänen