Effect of blank pre-conditioning humidity on the dimensional accuracy and rigidity of paperboard trays

Sami-Seppo Ovaska 1 , Panu Tanninen 1 , Esa Saukkonen 2 , and Kaj Backfolk 1
  • 1 Lappeenranta University of Technology, Group of Packaging Technology, P.O. Box 20, Lappeenranta, Finland
  • 2 Lappeenranta University of Technology, Group of Packaging Technology, P.O. Box 20, Lappeenranta, Finland
Sami-Seppo Ovaska
  • Corresponding author
  • Lappeenranta University of Technology, Group of Packaging Technology, P.O. Box 20, FI-53851, Lappeenranta, Finland
  • Email
  • Search for other articles:
  • degruyter.comGoogle Scholar
, Panu Tanninen
  • Lappeenranta University of Technology, Group of Packaging Technology, P.O. Box 20, FI-53851, Lappeenranta, Finland
  • Email
  • Search for other articles:
  • degruyter.comGoogle Scholar
, Esa Saukkonen
  • Lappeenranta University of Technology, Group of Packaging Technology, P.O. Box 20, FI-53851, Lappeenranta, Finland
  • Email
  • Search for other articles:
  • degruyter.comGoogle Scholar
and Kaj Backfolk
  • Lappeenranta University of Technology, Group of Packaging Technology, P.O. Box 20, FI-53851, Lappeenranta, Finland
  • Email
  • Search for other articles:
  • degruyter.comGoogle Scholar

Abstract

Optimization of storage conditions is essential for successful converting of paperboard. This paper investigates the effect of blank moisture content on the dimensional accuracy and rigidity of press-formed paperboard trays. The trays were manufactured from uncoated, pigment-coated and extrusion-coated paperboards and multi-layer materials using fixed process parameters. Because of the different layer structures and coatings, the paperboards showed different hygroscopic behavior. Prior to converting trials, the bursting strength of paperboards under different moisture conditions was assessed. It was found that the moisture content has only a minor influence on bursting strength, but moisture affects blank curling tendency and dimensional accuracy of the tray. A high blank moisture content led to a loss of the dimensional stability and load-bearing capacity of trays, although based on earlier knowledge it is evident that the moisture content should be high for successful press-forming. As expected, a low blank moisture content increased the prevalence of ruptures in forming but the resulting trays were stiffer and their dimensional accuracy was better. It was suggested that the increased stiffness is related to a more efficient moisture removal during the press-forming, so that the fiber network is more effectively consolidated due to e. g. the formation of hydrogen bonds.

  • Alfthan, J. (2004) Micro-mechanically based modeling of mechano-sorptive creep in paper, Dissertation, KTH Royal Institute of Technology, Sweden, 20 p.

  • Bolgov, A. (2015) Effect of ambient conditions on dimensional stability and stiffness of commercial paperboards and paperboard trays, Master’s thesis, Lappeenranta University of Technology, Finland, 62 p.

  • Cavlin, S. I. (1988) The unique convertibility of paperboard. Packag. Technol. Sci. 1:77–92.

    • Crossref
    • Export Citation
  • Edholm, B. (1998) Bending stiffness loss of paperboard at conversion – Predicting the bending ability of paperboard. Packag. Technol. Sci. 11:131–140.

    • Crossref
    • Export Citation
  • Gunderson, D. E., Considine, J. M. (1986) Measuring the mechanical behavior of paperboard in a changing humidity environment. In: International Process and Materials Quality Evaluation Conference. Atlanta, GA, USA. Tappi Press, Atlanta, GA, USA. pp. 245–251.

  • Hagman, A., Nygårds, M. (2012) Investigation of sample-size effects on in-plane tensile testing of paperboard. Nord. Pulp Pap. Res. J. 27(2):295–304.

    • Crossref
    • Export Citation
  • Hauptmann, M., Majschak, J.-P. (2011) New quality level of packaging components from paperboard through technology improvement in 3D forming. Packag. Technol. Sci. 24(7):419–432.

    • Crossref
    • Export Citation
  • Hauptmann, M., Wallmeier, M, Erhard, K., Zelm, R., Majschak, J.-P. (2015) The role of material composition, fiber properties and deformation mechanisms in the deep drawing of paperboard. Cellul. 22(5):3377–3395.

    • Crossref
    • Export Citation
  • Inoue, M., Lepoutre, P. (1989) Bond setting in the corrugating operation: the rate of dehydration of the starch adhesive. Tappi J. 72(12):127–131.

  • Kawasima, N., Sato, J., Yamauchi, T. (2008) Paper friction at the various measuring conditions – effect of relative humidity. Sen’i Gakkaishi 64(11):336–339.

    • Crossref
    • Export Citation
  • Koubaa, A., Riedl, B., Koran, Z. (1996) Surface analysis of press dried-CTMP paper samples by electron spectroscopy for chemical analysis. J. Appl. Polym. Sci. 61:545–552.

    • Crossref
    • Export Citation
  • Leminen, V., Tanninen, P., Mäkelä, P., Varis, J. (2013) Combined effect of paperboard thickness and mould clearance in the press forming process. Bioresour. 8(4):5701–5714.

  • Linvill, E., Östlund, S. (2014) The combined effects of moisture and temperature on the mechanical response of paper. Exp. Mech. 54(8):1329–1341.

    • Crossref
    • Export Citation
  • Mayhood, C. H., Kallmes, O. J., Cauley, M. M. (1962) The mechanical properties of paper part II: Measured shear strength of individual fiber to fiber contacts. Tappi J. 45(1): 69–75.

  • Paunonen, S. (2010) Influence of moisture on the performance of polyethylene coated solid fiberboard and boxes, Dissertation, Norwegian University of Science and Technology, Norway, 74 p.

  • Paunonen, S., Lenes, M., Gregersen, Ø. (2010) Modeled and measured bending stiffness of polyethylene coated solid fiberboard. Nord. Pulp Pap. Res. J. 25(3):358–365.

    • Crossref
    • Export Citation
  • Popil, R. E. (2010) High stiffness surface coating optimization through starch encapsulation of platy kaolin. Bioresour. 5(4):2738–2750.

  • Rhim, J. W. (2010) Effect of moisture content on tensile properties of paper-based food packaging materials. Food Sci. Biotechnol. 19(1):243–247.

    • Crossref
    • Export Citation
  • Rusu, M., Mörseburg, K., Gregersen, Ø., Yamakawa, A., Liukkonen, S. (2011) Relation between fibre flexibility and cross-sectional properties. Bioresour. 6(1):641–655.

  • Salmén, L. (1993) Responses of paper properties to changes in moisture content and temperature. In: Products of papermaking. PIRA, Leatherhead. pp. 369–430.

  • Saukkonen, E. (2014) Effects of the partial removal of wood hemicelluloses on the properties of kraft pulp, Dissertation, Lappeenranta University of Technology, Finland, 78 p.

  • Seth, R. S. (2003) The measurement and significance of fines. Pulp Pap. Can. 104(2):41–44.

  • Strömberg, F. (2016) Humidity’s effect on strength and stiffness of containerboard materials, Master’s Thesis, Karlstad University, Sweden, 50 p.

  • Tanninen, P., Kasurinen, M., Eskelinen, H., Varis, J., Lindell, H., Leminen, V., Matthews, S., Kainusalmi, M. (2014) The effect of tool heating arrangement on fibre material forming. J. Mater. Process. Technol. 214:1576–1582.

    • Crossref
    • Export Citation
  • Vishtal, A. (2015) Formability of paper and its improvement, Dissertation, VTT Technical Research Centre of Finland Ltd, 108 p.

  • Vishtal, A., Khakalo, A., Rojas, O. J., Retulainen, E. (2015) Improving the extensibility of paper: Sequential spray addition of gelatine and agar. Nord. Pulp Pap. Res. J. 30(3):452–460.

    • Crossref
    • Export Citation
  • Vishtal, A., Retulainen, E. (2012) Deep-drawing of paper and paperboard: the role of material properties. Bioresour. 7(3):4424–4450.

  • Wallmeier, M., Hauptmann, M., Majschak, J.-P. (2014) New methods for quality analysis of deep-drawn packaging components from paperboard. Packag. Technol. Sci. 28(2):91–100.

  • Waterhouse, J. F. (1984) The ultimate strength of paper. IPC Technical Paper Series 146. The Institute of Paper Chemistry, Appleton, WI, USA, p. 37.

Purchase article
Get instant unlimited access to the article.
$42.00
Log in
Already have access? Please log in.


or
Log in with your institution

Journal + Issues

Search