Improving the wet web strength and runnability

E Retulainen, K Salminen, Hanna Lindqvist, A Oksanen, Anna Sundberg

    Tutkimustuotos: LehtiartikkeliArtikkeliTieteellinenvertaisarvioitu

    1 Sitaatiot (Scopus)

    Abstrakti

    This paper presents recent runnability research carried out at 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, several chemical additives have also been found to improve the wet web strength. Surfactant was also found to have a considerable positive effect on wet web due to increased dry solids content after wet pressing. Increased tension holding capability was found to require improvements in fibre network structure.
    AlkuperäiskieliEi tiedossa
    Sivut255–261
    Sivumäärä7
    JulkaisuAppita Journal
    Vuosikerta65
    Numero3
    TilaJulkaistu - 2012
    OKM-julkaisutyyppiA1 Julkaistu artikkeli, soviteltu

    Keywords

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

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