Improving the wet web strength and runnability

Elias Retulainen, Kristian Salminen, Antti Oksanen, H. Lindqvist, A. Sundberg

    Research output: Contribution to journalArticleScientificpeer-review

    1 Citation (Scopus)


    This paper presents recent runnability research carried out in laboratory and pilot scale. Factors affecting adhesion, tensile strength, tension and residual tension after relaxation of wet web were studied. Adhesion of the web to surfaces was found to be - not only furnish specific - but also dependent on the temperature, dry solids content, chemical properties and contamination of the surface. Wet web strength has been shown to be a property even more sensitive to papermaking variables than the dry strength. In addition to fibre and fines properties, also several chemical additives have been found to improve the wet web strength. Also surfactant was found to have a considerable positive effect on wet web due to increased dry solids content after wet press. Increased tension holding capability was found to require improvements fibre network structure.
    Original languageEnglish
    Pages (from-to)255 - 261
    Number of pages6
    JournalAppita Journal
    Issue number3
    Publication statusPublished - 2012
    MoE publication typeA1 Journal article-refereed
    Event65th Appita Annual Conference and Exhibition: Innovate for the Future - Rotorua, New Zealand
    Duration: 10 Apr 201113 Apr 2011
    Conference number: 65


    • Wet web
    • adhesion
    • strength
    • runnability
    • web breaks


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