Mathematical modelling of moisture induced cockling of a paper sheet

Teemu Leppänen, Anna Leena Erkkilä, Petri Jetsu, Jari Hämäläinen

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

2 Citations (Scopus)

Abstract

The dimensional instability of a paper sheet induces curl and cockling in moisture changes. All elements of a paper making process that have influence on dimensional stability of the produced paper sheet, are potential sources for undesired flatness deviations. The most probable sources are pulp properties, fiber orientation angle and its anisotropy, basis weight variations, fines and fillers variations, drying stresses and moisture nonuniformities. However, it is not clear what is the significance of these factors in different situations. In this paper a continuum mechanical model is used to research the effect of fiber orientation angle and its anisotropy to the cockling of a paper sheet. As a result it is shown that these two factors have a great correlation to the paper cockling.

Original languageEnglish
Title of host publication92nd Annual Meeting of the Pulp and Paper Technical Association of Canada (PAPTAC)
PublisherPulp and Paper Technical Association of Canada
PagesA315-A320
ISBN (Print)978-189702317-4
Publication statusPublished - 2006
MoE publication typeA4 Article in a conference publication
Event92nd Annual Meeting of the Pulp and Paper Technical Association of Canada (PAPTAC) -
Duration: 7 Feb 20067 Feb 2006

Publication series

SeriesAnnual Meeting of the Pulp and Paper Technical Association of Canada (PAPTAC): Preprints A
VolumeA
ISSN1494-7722

Conference

Conference92nd Annual Meeting of the Pulp and Paper Technical Association of Canada (PAPTAC)
Period7/02/067/02/06

Fingerprint Dive into the research topics of 'Mathematical modelling of moisture induced cockling of a paper sheet'. Together they form a unique fingerprint.

  • Cite this

    Leppänen, T., Erkkilä, A. L., Jetsu, P., & Hämäläinen, J. (2006). Mathematical modelling of moisture induced cockling of a paper sheet. In 92nd Annual Meeting of the Pulp and Paper Technical Association of Canada (PAPTAC) (pp. A315-A320). Pulp and Paper Technical Association of Canada. Annual Meeting of the Pulp and Paper Technical Association of Canada (PAPTAC): Preprints A, Vol.. A