Piloting Extensible Paper Web Production

Jarmo Kouko, Tuomo Hjelt, Elias Retulainen

Research output: Chapter in Book/Report/Conference proceedingConference abstract in proceedingsScientific


Extensibility of paper web was investigated. Objective of the trial was to pilot production stages of highly extensible web. Bleached softwood kraft pulp (BSKP) from a Nordic mill was refined applying a high consistency (HC) phase at over 40% consistency followed by a low consistency (LC) refining at 4% consistency. Polymeric bi-component (BiCo) fibres with were used in the furnish. Water laid web forming at VTT SUORA pilot papermachine was successful. Pilot rolls were compacted (compressed) in-plane at a pilot machine. The VTT’s SutCo coating line was utilized for heat activation of the BiCo fibre containing rolls. Performance of the materials under different press-forming conditions was benchmarked using Packer 2020 pilot. Tray forming conditions had significant influence on performance of the materials. The in-plane compaction had the greatest influence on the elongation. The shrinkage that occurred by unrestrained drying was dependent of the pulp furnish.
Original languageEnglish
Title of host publicationProgress in Paper Physics Seminar
Subtitle of host publicationProceedings of the Seminar
EditorsD. Steven Keller, Joel J. Pawlak
PublisherNorth Carolina State University
Number of pages1
Publication statusPublished - 7 Oct 2021
MoE publication typeNot Eligible
EventProgress in Paper Physics Seminar - Virtual
Duration: 7 Oct 2021 → …


SeminarProgress in Paper Physics Seminar
Period7/10/21 → …
Internet address


  • Extensibility
  • elongation
  • formability
  • paperboard
  • pilot machine
  • press-forming


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