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Fines-enriched pulp as a strength agent in a CTMP middle ply
RISE - Research Institutes of Sweden, Bioeconomy, Papermaking and Packaging.ORCID iD: 0000-0003-0385-6202
RISE - Research Institutes of Sweden, Bioeconomy, Papermaking and Packaging.
Holmen AB, Sweden.
2018 (English)In: PaperCon 2018: Shaping the future through innovation, TAPPI , 2018, p. 741-760, article id PA5.2Conference paper, Published paper (Refereed)
Abstract [en]

The objective of this pilot scale trial, was to evaluate fines-enriched pulp (FE-pulp) as a strength agent in amiddle ply of a board product.A typical CTMP-based middle ply was produced on the FEX pilot paper machine. The stock consisted of CTMP,refined hardwood and softwood pulp, and filler. FE-pulp as strength agent was compared with glue pulp, ahighly refined chemical pulp. FEX sheets and hand sheets made of pulp mixtures were evaluated. Also, thedewatering and pressing conditions on the paper machine were compared.The results confirmed the results of earlier experiments with handsheets; FE-pulp used as strength agent showedto be twice as efficient as glue pulp regarding strength properties without impairing the bulk. Further, thedewatering conditions and press dryness's on the paper machine was comparable at these additions. Thus, allthese results imply that addition of FE-pulp can replace the double amount of glue pulp as a strength agent.

Place, publisher, year, edition, pages
TAPPI , 2018. p. 741-760, article id PA5.2
Keywords [en]
fines-enriched pulp, strength agent, CTMP, chemithermomechanical pulp, paperboard, glue pulp, refining
National Category
Paper, Pulp and Fiber Technology
Identifiers
URN: urn:nbn:se:ri:diva-35391Scopus ID: 2-s2.0-85060390664ISBN: 978-1-59510-268-3 (print)OAI: oai:DiVA.org:ri-35391DiVA, id: diva2:1256122
Conference
TAPPI Paper Conference and Trade Show, PaperCon 2018; Charlotte; United States; 15 April 2018 through 18 April 2018
Available from: 2018-10-16 Created: 2018-10-16 Last updated: 2019-03-19Bibliographically approved

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Björk, Elisabeth

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