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Microscale compression uniformity measurements on coated paper surfaces
2005 (English)In: Journal of Pulp and Paper Science (JPPS), ISSN 0826-6220, Vol. 31, no 2, 84-89 p.Article in journal (Refereed) Published
Abstract [en]

This paper introduces a new static sensor technique that characterizes local pressure distributions on paper surfaces tinder compression. Contact areas and local pressure variations are determined using a high-resolution pressure-sensitive film, which has been developed recently at STFI-Packforsk. Compared to other commercially available pressure-sensitive films, this new film brings the advantages of a higher spatial resolution (3 pm) and a wider pressure range (1-100 MPa), which are necessary for analyzing a microporous material such as paper. The technique provides clear images of fine details such as fibre walls, collapsed lumens and fibre crossings. In initial experiments, a measure for the load coverage ability of a coating was obtained. It gives insight into how well a coating layer covers the nonuniformity of the base paper under compression. In future, the applicability of the technique will be tested in the fields of coating, calendering and printing.

Place, publisher, year, edition, pages
2005. Vol. 31, no 2, 84-89 p.
Keyword [en]
coated papers, compression, measuring instruments, pressure measurement, sensors, film, pressure uniformity, felt, perimeter, water
URN: urn:nbn:se:kth:diva-14866ISI: 000230163000004OAI: diva2:332907
QC 20100525Available from: 2010-08-05 Created: 2010-08-05Bibliographically approved

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Ström, Göran
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