Prediction of wet web runnability with a relaxation test

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Abstract

A tensile test rig has been developed by VTT and Metso Paper for measuring dynamic tensile and relaxation properties of wet and dry paper. Hand sheets made of mechanical and chemical pulps were tested in this study at strain rate 1000%/s. The main interest in this study was in the effect of softwood pulp on the residual tension and wet web runnability. Results show that dry strength properties of pulp mixtures do not predict its wet web runnability. Additionally, these results call in question the generally accepted role of softwood chemical pulp in wet web runnability.
Original languageEnglish
Title of host publicationRaw materials and processes - viewpoint of product
Subtitle of host publicationthe 5th Biennial Johan Gullichsen Colloquium
PublisherFinnish Paper Engineers’ Association
Number of pages10
Publication statusPublished - 2005
MoE publication typeNot Eligible
Event5th Biennial Johan Gullichsen Colloquium - Kalastajatorppa, Helsinki, Finland
Duration: 17 Nov 200517 Nov 2005

Conference

Conference5th Biennial Johan Gullichsen Colloquium
CountryFinland
CityHelsinki
Period17/11/0517/11/05

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  • Cite this

    Salminen, K., Kouko, J., & Kurki, M. (2005). Prediction of wet web runnability with a relaxation test. In Raw materials and processes - viewpoint of product: the 5th Biennial Johan Gullichsen Colloquium Finnish Paper Engineers’ Association.