Packaging Technology and Science

Cover image for Vol. 25 Issue 5

August/September 2012

Volume 25, Issue 5

Pages 249–309

  1. Research Articles

    1. Top of page
    2. Research Articles
    3. PAPER PRESENTED AT IAPRI SYMPOSIUM 2011, BERLIN
    1. Comparative Carbon Footprint of Packaging Systems for Tuna Products (pages 249–257)

      Ngamtip Poovarodom, Chularat Ponnak and Natthaphon Manatphrom

      Article first published online: 31 AUG 2011 | DOI: 10.1002/pts.975

      Thumbnail image of graphical abstract

      The present study aimed to evaluate and compare the carbon footprint associated with canned tuna meat with a focus on packaging systems used to provide one single-serve meal. The manufacturing process of retort pouches and cups produced 60% and 70% less GHG emissions, respectively, than that of metal cans. However, the overall carbon footprint of canned tuna in retort cups was 10% and 22% less than when packaged in metal cans and retort pouches, respectively.

    2. Grease Penetration and Browning Resistance of Pulpboard and Paperboard Coated with Whey Protein (pages 259–270)

      SeungRan Yoo, Sok Hei Lau and John M. Krochta

      Article first published online: 25 OCT 2011 | DOI: 10.1002/pts.977

      Thumbnail image of graphical abstract

      Both 10% whey protein concentrate (WPC) : 20% sucrose (Suc)-coated and polyethylene-coated solid bleached sulfate paperboards were excellent oil barriers compared with untreated solid bleached sulfate paperboard. Similarly, WPC : Suc coating matched the oil barrier provided by fluorinated hydrocarbon coating for pulpboard. WPC : Suc coating was shown in this study to have potential to replace synthetic materials as a grease barrier.

    3. Effects of Liquid Contaminants on Heat Seal Strength of low-density polyethylene Film (pages 271–284)

      S. Mihindukulasuriya and L.-T. Lim

      Article first published online: 16 SEP 2011 | DOI: 10.1002/pts.978

      Thumbnail image of graphical abstract

      The presence of liquid contaminant(s) during the heat sealing of thermoplastic films can interfere with the formation of a robust seal. In this study, the effects of heat sealing process variables (dwell time, pressure, jaw configuration and temperature) on the interface temperature and seal strength characteristics of linear low-density polyethylene (LLDPE) film were investigated under different film–film interface conditions. This study showed that the contaminant layer interacted strongly with sealing parameters and affected the seal strength characteristics significantly.

    4. Barriers against the Migration of Mineral Oil from Paperboard Food Packaging: Experimental Determination of Breakthrough Periods (pages 285–301)

      Katell Fiselier and Koni Grob

      Article first published online: 24 OCT 2011 | DOI: 10.1002/pts.982

      Thumbnail image of graphical abstract

      Breakthrough periods are measured by fixing a donor pack containing printing ink oil and a volatile dye to one side of the barrier and a polyethylene film as a receptor to the other. The dye enables identifying gaps, cracks and holes in the barrier layer.

  2. PAPER PRESENTED AT IAPRI SYMPOSIUM 2011, BERLIN

    1. Top of page
    2. Research Articles
    3. PAPER PRESENTED AT IAPRI SYMPOSIUM 2011, BERLIN
    1. Vibration Testing of Intermediate Bulk Containers for Dangerous Goods (pages 303–309)

      Michael Schurig and Christian Klinger

      Article first published online: 31 AUG 2011 | DOI: 10.1002/pts.970

      Thumbnail image of graphical abstract

      Intermediate bulk containers (IBCs) for liquid dangerous goods require a ‘vibration test’ for type approval introduced in the United Nations Recommendations on the transport of dangerous goods. The existing “bounce” test procedure is criticized based on experiments and a simple computational model of the test. An improved test procedure should more realistically simulate vibration and repetitive shocks.

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