The use of 3-dimensional image analysis and computer simulation for gathering statistical data and physical constants for paper coating

T Byholm, L Sinervo, C Stoor, Martti Toivakka

    Research output: Chapter in Book/Conference proceedingConference contributionScientificpeer-review


    The microscopic structure of paper coatings affects parameters in paper such as reflec-tance, opacity and liquid absorption. Currently, there is no detailed knowledge that explains how these parameters are affected by different particle shapes or their shape distribution. Methods exist for experimentally analysing fluid flow characteristics as well as optical pa-rameters but they do not further essential statistical information about the pore structure it-self. In this paper, the use of experimental methods combined with detailed statistical analy-sis and numerical simulations is proposed as a viable means of gathering useful information. Simulated packing of arbitrary shaped particles allows the generation of different samples for analysis, mimicking real materials as closely as possible. These computer-generated materi-als can be analysed for gathering statistics such as distributions of pore size, connectivity, inter-pore connected area and surface roughness. Furthermore, numerical simulations for acquiring information about the permeability and tortuosity can be carried out and there are also methods for simulating light scattering in these materials. Computational packings can be analysed experimentally for verification and then used for improvement and control of the characteristics of paper coatings.
    Original languageUndefined/Unknown
    Title of host publicationProceedings: PTS Coating Symposium 2005
    Publication statusPublished - 2005
    MoE publication typeA4 Article in a conference publication
    Eventconference -
    Duration: 1 Jan 2010 → …


    Period01/01/10 → …

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