Packaging Technology and Science

Cover image for Vol. 27 Issue 5

May 2014

Volume 27, Issue 5

Pages 341–421

  1. Paper Presented at IAPRI Symposium 2013

    1. Top of page
    2. Paper Presented at IAPRI Symposium 2013
    3. Research Articles
    1. Water Resistance and Barrier Properties Improvement of Paperboard by Poly(Lactic Acid) Electrospraying (pages 341–352)

      T. Archaviboonyobul, T. Jinkarn, S. Sane, S. Chariyachotilert and S. Kongcharoenkiat

      Article first published online: 31 JUL 2013 | DOI: 10.1002/pts.2034

      Thumbnail image of graphical abstract

      This research attempted to improve water resistance and barrier properties of paperboard by electrospraying the material with poly(lactic acid) (PLA). The focus was to reduce the amount of PLA in the coating process and to achieve the thinnest possible PLA coating layer. The results showed that water resistance and barrier properties of paperboard were significantly improved at PLA concentration of at least 1%.

    2. Thermal and mechanical durability of starch-based dual polymer coatings in the press forming of paperboard (pages 353–363)

      P. Tanninen, H. Lindell, E. Saukkonen and K. Backfolk

      Article first published online: 18 JUN 2013 | DOI: 10.1002/pts.2036

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      The convertibility of biopolymer dispersion-coated paperboard was determined using a novel adjustable packaging line equipped with a tray-pressing mould. Commercial paperboard was dispersion barrier coated using a dual polymer system containing both a bio and a synthetic polymer. The addition of synthetic polymer into bio-based dispersion improved the elastic properties, plasticity and, subsequently, mechanical convertibility of the product. Furthermore, moderate additions of the synthetic polymer provided improved grease resistance for the biopolymer coatings.

    3. Investigation of Frequency Response Function of Product-Transport System Based on Multi-coordinate Coupled Inverse Substructure Method (pages 364–375)

      Yuan-Biao Zhang and Zhi-Wei Wang

      Article first published online: 9 JUL 2013 | DOI: 10.1002/pts.2038

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      The product-transport system is treated as a two-substructures multi-coordinate coupled system, which is composed of a product substructure and a vehicle substructure, connected by many packaging units. The multi-coordinate coupled inverse substructure method is developed and used to analyse the dynamic characteristics of the product-transport system. The experiment of a physical prototype is conducted, and the results show that the predicted substructure-level frequency response functions are in accordance with the measured.

    4. Effect of Garlic Oil and Modified Atmosphere Packaging on the Quality of Chilled Shrimp (pages 376–383)

      P. Maneesin, N. Chinnasri, P. Vongsawasdi and G. Wangchanachai

      Article first published online: 19 JUL 2013 | DOI: 10.1002/pts.2041

      Thumbnail image of graphical abstract

      Approximately 100 g of shrimps with or without dipping into garlic oil was placed on polyethylene terephthalate trays and packed under two MA conditions (40% CO2 + 60% N2 and 60% CO2 + 40% N2) using nylon/PE pouches before storing at 8°C ± 2°C. The results showed that 60% CO2 and 40% O2 in combination of garlic oil helped prolonging the shelf life of the shrimps stored at 8°C ± 2°C from 6 to 18 days.

  2. Research Articles

    1. Top of page
    2. Paper Presented at IAPRI Symposium 2013
    3. Research Articles
    1. Inverse Sub-Structuring Method for Multi-Coordinate Coupled Product Transport System (pages 385–408)

      Jun Wang, Xiang Hong, Yi Qian, Zhi-wei Wang and Li-xin Lu

      Article first published online: 24 JUN 2013 | DOI: 10.1002/pts.2035

      Thumbnail image of graphical abstract

      A general inverse sub-structuring method is developed for the analysis of the dynamic characteristics of product-transport-system. The closed-form analytical solution to inverse sub-structuring analysis of multi-coordinate coupled multi-substructure product-transport-system is derived and validated by a lumped mass-spring-damper model. The method developed offers an approach to predict the unknown substructure-level FRFs and coupling stiffness from system-level FRFs purely. The suggested method may help to obtain the the main controlling factors and contributions from the various structure-borne paths for product-transport-system.

    2. Comparison of the Material Parameters of Polyethylene Grades with the Test Performance Behaviour of Packagings for the Transport of Dangerous Goods in Relation to the Pre-Storage Time with 55% Nitric Acid (pages 409–421)

      Margit Weltschev, Ute Niebergall and Jan Werner

      Article first published online: 24 JUN 2013 | DOI: 10.1002/pts.2037

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      Selected material parameters such as melt flow rate (MFR), notched impact strength (NIS) and resistance to oxidative degradation (Ox) have a relationship with design type tests of packagings for the transport of dangerous goods. The results of further research on the marginal drop heights of jerrican design types in drop tests at -18°C as a function of different pre-storage times with 55 % nitric acid at 40 °C and pre-storage for six months at 23 °C are presented in this paper.