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Investigation of the effect of ink penetration and gloss on a proposed spectral trapping model for high quality glossy coated paper
Beuth Hochschule, Berlin University of Applied Sciences, Germany.
Linköping University, Department of Science and Technology, Media and Information Technology. Linköping University, The Institute of Technology.
2013 (English)In: Journal of Print and Media Technology Research, ISSN 2223-8905, Vol. 2, no 4, 235-244 p.Article in journal (Refereed) Published
Abstract [en]

The amount of trapping has a great impact on the gray balance and color reproduction of printed products. Therefore, conventional print density based models to estimate the effect of trapping have been created, which only give percentage values. In an earlier paper (Hauck and Gooran, 2011) we have proposed a trapping model based on reflectance spectra, which defines the trapping effect as the DE*ab colorimetric differences between the measurements and the calculated values. Therefore, this model is more useful and meaningful for the press machine operators than the conventional trapping models. The surface (gloss) and ground (ink penetration) effect may have an impact on the print results depending on the substrate and inks but these effects have mainly been ignored in all previous trapping models. In the present paper, we extend our earlier model to investigate the impact of both effects for high quality glossy coated paper and a set of sheet-fed offset inks. An ink mileage test was carried out to find the surface and ink penetration effects. The results of our investigation demonstrates that these two effects compensate each other and their total impact is almost negligible for the tested materials. This means that our previously proposed model can successfully be used for high quality glossy coated papers to determine the trapping value.

Place, publisher, year, edition, pages
International Association of Research Organizations for the Information, Media and Graphic Arts Industrie (IARIGAI), 2013. Vol. 2, no 4, 235-244 p.
Keyword [en]
Ink trapping in offset, Ink component penetration, Surface Effects on reflectance, Color difference (ΔE*ab), Print quality, Modeling ink trapping respons
National Category
Other Engineering and Technologies
URN: urn:nbn:se:liu:diva-105688OAI: diva2:709530
Available from: 2014-04-02 Created: 2014-04-02 Last updated: 2014-04-11Bibliographically approved

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Hauck, ShahramGooran, Sasan
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