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- Lindblom, A. T., et al.
(author)
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Improved paperboard properties with impulse technology
- 2006
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In: Professional Papermaking. - 1612-0485. ; :1, s. 53-57
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Journal article (peer-reviewed)abstract
- Impulse technology is a high-intensity web consolidation process in which water is removed from a wet paper web by the combined action of mechanical pressure and high temperature. Pilot scale papermaking trials on STFI-Packforsk's research paper machine showed that impulse technology is a viable consolidation process for production of paperboard. Pilot trials showed significant improvements both in product quality and production efficiency. The surface of impulse pressed paperboard presented lower surface roughness and more uniform surface topographythan a reference board consolidated with wet pressing. This resulted in better print uniformity. The increase in surface smoothness was achieved without loss in total bulk, which preserved stiffness. Thus the relationship between surface roughness and bending stiffness was improved. The outgoing solids content after pressing increased at elevated temperatures, which provides a potential for increases in production capacity.
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