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 language | English |
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Title of host publication | Paper Conference and Trade Show (PaperCon 2016) |
Publisher | TAPPI Press |
Pages | 894-904 |
Volume | 2 |
ISBN (Print) | 978-1-5108-3119-3 |
Publication status | Published - 2016 |
MoE publication type | A4 Article in a conference publication |
Event | Paper Conference and Trade Show, PaperCon 2016 - Cincinnati, United States Duration: 15 May 2016 → 18 May 2016 |
Conference
Conference | Paper Conference and Trade Show, PaperCon 2016 |
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Abbreviated title | PaperCon 2016 |
Country/Territory | United States |
City | Cincinnati |
Period | 15/05/16 → 18/05/16 |
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