Impingement drying of multi-ply linerboard

Harri Kiiskinen, Kari Juppi, Oleg Timofeev, M. A. Karlsson, Kari Edelmann

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

1 Citation (Scopus)


This study is concerned with impingement drying of linerboard. The linerboard webs used in the tests were made on a production board machine and on a pilot board machine and sampled after the press section at approximately 45% solids. Impingement drying with hot air, as presented in this paper, offers a new and effective method for drying board, especially at the beginning of a dryer section where delamination is normally a severe problem in multi-cylinder drying. With the new impingement drying technique it is possible to obtain drying rates of 100 kg/m2h and above, which is much higher than with steam heated cylinders. According to the experimental results, the delamination risk during the initial drying stages can be lowered due to the lower web temperature. The observed changes in board quality resulting from changes in air temperature and impingement velocity were small but repeatable.
Original languageEnglish
Title of host publicationPreprints of the 83rd Annual Meeting, Technical Section, CPPA
Subtitle of host publicationPapers presented on Tuesday and Wednesday
Place of PublicationMontreal
PublisherCanadian Pulp and Paper Association (CPPA)
ISBN (Print)978-1-89674-209-0
Publication statusPublished - Dec 1997
MoE publication typeA4 Article in a conference publication
Event83rd Annual Meeting of the Technical Section of Canadian Pulp and Paper Association - Montreal, Canada
Duration: 28 Jan 199731 Jan 1997
Conference number: 83


Other83rd Annual Meeting of the Technical Section of Canadian Pulp and Paper Association


  • paper
  • paper production
  • papermills
  • paperboard
  • drying
  • impingement
  • webs
  • cylinders

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