Drying tension and shrinkage in paper and board: Part 1 Single ply sheets of chemical and mechanical furnishes

Elias Retulainen, Pekka Martikainen, Oleg Timofeev

    Research output: Contribution to journalArticlepeer-review

    Abstract

    The shrinkage and drying behaviour of paper furnishes was studied by examining the development of shrinkage and tension in separate individual plies during drying in a specially developed apparatus that can control restraint and/or shrinkage. Experimental results show large differences in dryness and drying stress/shrinkage behaviour between chemical and mechanical furnish plies throughout the drying process. In Part 2 of this study the hypothetical shrinkage and drying behaviour of a symmetric three-ply board was predicted using this information together with simulated moisture and temperature variations of such a board as it passes through a typical cylinder dryer section.
    Original languageEnglish
    Pages (from-to)51-54
    JournalAppita Journal
    Volume68
    Issue number1
    Publication statusPublished - 2015
    MoE publication typeA1 Journal article-refereed

    Keywords

    • drying
    • paper properties
    • shrinkage
    • tension

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