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 journalArticleScientificpeer-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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