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Simulation of print and Paper Optics

We have developed tools (methods and softwares) that help our customers' understanding of the complex processes that govern qualities of print and paper. These understandings are also helpful for designing experimental investigations and for interpretation of the observed results. 

Modeling and simulation are important complements to experimental measurements. We have the following tools,

  • Tool of printing dynamics and ink-paper interaction can provide you with a full insight into the complex processes of ink-transfer and ink-drying.
  • Grace is an optical simulation tool for paper and board. With this tool, all physical interactions between light and paper can be simulated on a micro-structure level.    
  • Modeling of Colour reproduction provides you with possibilities to quantitatively evaluate the impact of various factors on the Colour of a print.


Li Yang
+46 8 676 7134
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Li Yang, “Ink dynamics and ink transfer under printing nip”, Proc. Paper Phys. Conf. (2012).

L. G. Coppel, Whiteness and fluorescence in paper – Perception and optical modelling, Licentiate Thesis nr. 47, Mid Sweden University, Sweden.

L. G. Coppel, M. Andersson, P. Edström, and J. Kinnunen, “Limitations of the efficiency of fluorescent whitening agents in uncoated paper”, Nordic Pulp and Paper Research Journal, 26(3), 319-328 (2011).

L. G. Coppel, M. Andersson, and P. Edström, “Determination of quantum efficiency in fluorescing turbid media,” Applied Optics, 50(17), 2784-2792 (2011).

L. Yang and Roger D. Hersch, “Extending the Kubelka-Munk model to a non-diffuse light distribution”, J.  Imaging Science and Technology, vol. 52, pp. 030201-7 (2008).

Li Yang, Probabilistic spectral model of Colour halftone incorporating substrate fluorescence and interface reflections, J.  Optical Society of America A, vol. 27, 2115-2122 (2010).

Coppel L.G., Neuman M., Edström P., ” Lateral light scattering in paper – MTF simulation and measurement,” Optics Express 19(25),p. 25181-25187 (2011).