The effect of long fibers on sheet properties in foam forming

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

Abstract

valuable products. For the current products the technologies enabling the reduction of the raw material consumption and improvement of the energy and water efficiency are under great interest. This is a challenging goal since the quality of the end product should simultaneously remain intact. In a water-laid process the challenge to improve formation comes bigger when the fiber length increases. To date the only solution has been to move towards more diluted conditions i.e. to decrease the forming consistency when utilizing long natural or man-made fibers. However, when using foam as a carrier fluid flocculation of fibers is decreased and fiber length can be increased. This paper will show some results on foam forming studies that have been performed with long fibers in realistic process conditions at VTT's pilot environment. Our scope is on long-fiber suspensions that can still be run on existing paper machine geometries. The average fiber length and foam density were the main variables in these trials. The formation of papers made of short fibers was always very good. For longer fibers the formation improved with decreasing foam density and was much better than that of water-laid samples.
Original languageEnglish
Title of host publicationPaper Conference and Trade Show (PaperCon 2016)
PublisherTAPPI Press
Pages894-904
Volume2
ISBN (Print)978-1-5108-3119-3
Publication statusPublished - 2016
MoE publication typeA4 Article in a conference publication
EventPaper Conference and Trade Show, PaperCon 2016 - Cincinnati, United States
Duration: 15 May 201618 May 2016

Conference

ConferencePaper Conference and Trade Show, PaperCon 2016
Abbreviated titlePaperCon 2016
CountryUnited States
CityCincinnati
Period15/05/1618/05/16

Fingerprint

Foams
Fibers
Water
Flocculation
Raw materials
Fluids
Geometry

Keywords

  • commerce
  • foams
  • paper and pulp industry
  • average fiber lengths
  • foam densities
  • man-made fiber
  • paper industries
  • process condition
  • product portfolios
  • raw material consumption
  • water efficiency

Cite this

Koponen, A., Torvinen, K., Jäsberg, A., & Kiiskinen, H. (2016). The effect of long fibers on sheet properties in foam forming. In Paper Conference and Trade Show (PaperCon 2016) (Vol. 2, pp. 894-904). TAPPI Press.
Koponen, Antti ; Torvinen, Katariina ; Jäsberg, Ari ; Kiiskinen, Harri. / The effect of long fibers on sheet properties in foam forming. Paper Conference and Trade Show (PaperCon 2016). Vol. 2 TAPPI Press, 2016. pp. 894-904
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Koponen, A, Torvinen, K, Jäsberg, A & Kiiskinen, H 2016, The effect of long fibers on sheet properties in foam forming. in Paper Conference and Trade Show (PaperCon 2016). vol. 2, TAPPI Press, pp. 894-904, Paper Conference and Trade Show, PaperCon 2016, Cincinnati, United States, 15/05/16.

The effect of long fibers on sheet properties in foam forming. / Koponen, Antti; Torvinen, Katariina; Jäsberg, Ari; Kiiskinen, Harri.

Paper Conference and Trade Show (PaperCon 2016). Vol. 2 TAPPI Press, 2016. p. 894-904.

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

TY - GEN

T1 - The effect of long fibers on sheet properties in foam forming

AU - Koponen, Antti

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N2 - valuable products. For the current products the technologies enabling the reduction of the raw material consumption and improvement of the energy and water efficiency are under great interest. This is a challenging goal since the quality of the end product should simultaneously remain intact. In a water-laid process the challenge to improve formation comes bigger when the fiber length increases. To date the only solution has been to move towards more diluted conditions i.e. to decrease the forming consistency when utilizing long natural or man-made fibers. However, when using foam as a carrier fluid flocculation of fibers is decreased and fiber length can be increased. This paper will show some results on foam forming studies that have been performed with long fibers in realistic process conditions at VTT's pilot environment. Our scope is on long-fiber suspensions that can still be run on existing paper machine geometries. The average fiber length and foam density were the main variables in these trials. The formation of papers made of short fibers was always very good. For longer fibers the formation improved with decreasing foam density and was much better than that of water-laid samples.

AB - valuable products. For the current products the technologies enabling the reduction of the raw material consumption and improvement of the energy and water efficiency are under great interest. This is a challenging goal since the quality of the end product should simultaneously remain intact. In a water-laid process the challenge to improve formation comes bigger when the fiber length increases. To date the only solution has been to move towards more diluted conditions i.e. to decrease the forming consistency when utilizing long natural or man-made fibers. However, when using foam as a carrier fluid flocculation of fibers is decreased and fiber length can be increased. This paper will show some results on foam forming studies that have been performed with long fibers in realistic process conditions at VTT's pilot environment. Our scope is on long-fiber suspensions that can still be run on existing paper machine geometries. The average fiber length and foam density were the main variables in these trials. The formation of papers made of short fibers was always very good. For longer fibers the formation improved with decreasing foam density and was much better than that of water-laid samples.

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KW - foam densities

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KW - raw material consumption

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Koponen A, Torvinen K, Jäsberg A, Kiiskinen H. The effect of long fibers on sheet properties in foam forming. In Paper Conference and Trade Show (PaperCon 2016). Vol. 2. TAPPI Press. 2016. p. 894-904