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Prediction of optical variations in paper from high resolution measurements of paper properties
Umeå University, Faculty of Science and Technology, Department of Applied Physics and Electronics.
2013 (English)In: Nordic Pulp & Paper Research Journal, ISSN 0283-2631, E-ISSN 2000-0669, Vol. 28, no 4, 596-601 p.Article in journal (Refereed) Published
Abstract [en]

A method to predict optical variations from high resolution measurements of paper properties is evaluated in this work. The method combines the point-wise values of high resolution maps of filler content and grammage with an empirical model derived in an earlier study to predict the spatial optical variations in paper. The method has been applied on two paper samples, a laboratory paper and a commercial 80 g/m(2) copy paper. The optical variations have been predicted at a scale of 1 mm(2). Validation has been made by using a high resolution spectrophotometric setup to measure the spatial reflectance variations in the paper. The results show that for the samples used, the influence of filler content variations and density variations on the optical variations is small compared to influence of the grammage variations.

Place, publisher, year, edition, pages
2013. Vol. 28, no 4, 596-601 p.
Keyword [en]
Paper properties, Variations, Filler content, Spatial, Grammage, Uncoated, Image registration, High resolution, Point-wise
National Category
Paper, Pulp and Fiber Technology
Identifiers
URN: urn:nbn:se:umu:diva-84811DOI: 10.3183/NPPRJ-2013-28-04-p596-601ISI: 000328642400015OAI: oai:DiVA.org:umu-84811DiVA: diva2:691259
Available from: 2014-01-27 Created: 2014-01-20 Last updated: 2017-12-06Bibliographically approved

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Norberg, Ole
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