Estimating limits of wet pressing on paper machines
Source abstract
Abstract
Water removal by wet pressing on paper machines depends on many factors such as press impulse, pressure, basis weight, equilibrium moisture, rewet, furnish, and fabric properties. These factors must be considered together to estimate wet pressing limits, such as the possibility of attaining 65% solids content on commercial paper machines. We have made such estimates employing the Decreasing Permeability Model (DPM) of wet pressing. This paper describes the utility of this approach and discusses some findings, such as the large dependence of low basis weight grades on equilibrium moisture content, maximum nip pressure, and rewet. The model also estimates the impact of basis weight, web temperature, double-felting, and incoming web solids on water removed.
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Research context
OpenAlex topics: Material Properties and Processing · Advanced Cellulose Research Studies · Textile materials and evaluations
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (26)
Show source-provided references
1. Busker, L.H. and Cronin, D.C., Pulp Pap. Can. 85(6): T138(1984).
2. Maloney, T., Todororiv, A., and Paulapuro, H., Nord. Pulp Pap. Res. J. 13(4): 285(1998).10.3183/NPPRJ-1998-13-04-p285-291 ↗
3. Holstege, G., TAPPI J. 81(6): 115(1998).
4. Laivins, G.V. and Scallan, A.M., Tappi J. 77(3): 125(1994).
5. McDonald, J.D., McDonald, E.M., and Kerekes, R.J., J-FOR 3(2): 52(2013).10.1353/cj.2013.0025 ↗
6. Brown, Ron, Hansen, Fred, Mallory James, et al., “Forest Products Industry Technology Roadmap,” www.agenda2020.
7. org, 2010. Available [Online] http://www.agenda2020.org/ uploads/1/1/4/1/11419121/fpi_roadmap_2010.pdf <27Feb2017>.
8. Kerekes, R.J., McDonald, E.M., and McDonald, J.D., J-FOR 3(2):46(2013).
9. McDonald, J.D. and Pikulik, I.I., Tappi J. 70(2): 77(1987).
10. McDonald, J.D. and Kerekes, R.J., Tappi J. 74(12): 142(1991).
11. McDonald, J.D. and Kerekes, R.J., Tappi J. 78(11): 107(1995).
12. McDonald, J.D., Hamel, J., and Kerekes, R.J., J. Pulp Pap. Sci. 26(11): 401(2000).
13. McDonald, J.D. and Amini, J., TAPPI J. 83(2): 79(2000).
14. McDonald, J.D. and Pikulik, I.I., Tappi J. 72(10): 95(1989).
15. McDonald, D., “Web rewetting by forming fabrics,” Process Prod. Qual. Conf. Trade Fair, TAPPI PRESS, Atlanta, GA, USA, 1999.
16. Luotonen, A., and Sämpi, J., “Dewatering in double wire pulp machine -- press theory and test results,” TAPPI Eng. Conf., TAPPI PRESS, Atlanta, 1995.
17. McDonald, J.D. and Pikulik, I.I., Nord. Pulp Pap. Res. J. 3(3): 115(1988).10.3183/NPPRJ-1988-03-03-p115-119 ↗
18. Anderson, L. and Back, E., “The effect of temperature up to 90ºC on dewatering of wet paper webs, evaluated in a press simulator,” TAPPI Eng. Conf., TAPPI PRESS, Atlanta, 1981.
19. Royo, M. and Thorp, B., PIMA 63(9): 38(1981).10.1111/j.1600-0404.1981.tb07736.x ↗
20. Batty, R.C., Daunais, R., and Pye, I.T., J. Pulp Pap. Sci. 9(4): TR106(1983).
21. Hodges, C.R., Tappi 60(7): 94(1977).
22. Lehtinen, A., Pap. Age 15(11): 32(1979).10.1289/ehp.793211 ↗
23. Pikulik, I.I., Garner, R.G., Daunais, R., et al., Pulp Pap. Can. 93(1): 30(1992).
24. Vomhoff, H. and Gullbrand, O., Papier T104(11): 40(2004).
25. 24. Beck, David A., “Re-examining wet pressing fundamentals: A look inside the nip using dynamic measurement,” TAPPI Engineering Conf., TAPPI PRESS, Atlanta, 1986.
26. McDonald, J.D., Pikulik, I.I., Ko, P.L., et al., J. Pulp Pap. Sci. 28(1):17(2002).