JOURNAL OF PACKAGING SCIENCE & TECHNOLOGY, JAPAN
Online ISSN : 2759-8322
Print ISSN : 0918-5283
ISSN-L : 0918-5283
Volume 5, Issue 2
Displaying 1-4 of 4 articles from this issue
  • Lee Andrew , Ling Siew
    1996Volume 5Issue 2 Pages 81-
    Published: 1996
    Released on J-STAGE: July 30, 2025
    JOURNAL FREE ACCESS
    The Asia Pacific region has register the highest and fastest economic growth rate in the world in the past few year (see Table 1). This has significantly impact the ASEAN packaging industry. The total packaging market for the ASEAN countries was about US$6.5 billion. The characteristics of the packaging industry in most of the ASEAN countries are towards high growth rates, a strong domestic-orientation and national/ regional markets. This paper attempts to provide information of members country of ASEAN. As many of these countries do not have detailed data for the packaging industries, most of the data from this paper are extracted from papers written by participants that has taken part or have contributed to the training carried out by the Packaging Centre in Singapore. The paper will cover first packaging R&D in this region, the specific packaging industry, the general trend and conclusion will be address at the end of this paper.
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  • Chiaki Murao
    1996Volume 5Issue 2 Pages 99-
    Published: 1996
    Released on J-STAGE: July 25, 2025
    JOURNAL FREE ACCESS
    Mathematical model was studied on the compression strength characteristics of corrugated containers with contents in the previous papers.That was C = B + αD···(1), C =βA…(2). Coefficient β involved above equation (2) meant the compensation factor for the compression strength loss of corrugated containers during warehousing. In this paper βcharacteristics study of corrugated containers filled with carton boxes is made on the effect of clearance between the top panel of corrugated containers and carton boxes by using 2-tier model. Study is made on compression creep failure tests conditioned at 20℃.,65%RH/40℃.,90% RH. Results indicate the optimum range of top clearance for minimizing compression strength loss of corrugated containers filled with carton boxes. Continued on the previous paper significant route to the optimum design for the compression strength of corrugated contain­ers is provided by using this new results.
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  • Satoru MATSUSHIMA, Shigeo MATSUSIIlMA
    1996Volume 5Issue 2 Pages 107-
    Published: 1996
    Released on J-STAGE: July 27, 2025
    JOURNAL FREE ACCESS
    Elastic stress analysis was performed in SCP medium (SM) of wave shape (made of symmetrical parts of ellipus) for the corrugated fiberboard under the surface pressure. Also,relations between σ (bending stress) distribution and the SM shape were discussed. Following results were obtained. (1)Maximum value σmax of |σ| appears at kraftliner・ SM joints on the inner surfaces. And ratio (σmax(partial epllipus)/σmax(sinusoidal) is 1~2, and gradually decreases with the increase of ratio r (half waveheight h/2 to radius of ellipus) in the waveheight direction. (2)Maximal or minimal value of the stress is in the range of x = L/32~L/12 for SM, which L is wavelength and x is distance in the machine direction from the middle of the waveheight and the thickness T for SM. The position of σmax gradually increases from L/ 32 to L/12 with the increase of r. (3)In ρ (radius of curvature for SM) > T/2, σmax decreases conspicuously with the increase of T. σmax decreases sharply at ρ≒T/2 and increases slightly in ρ>>T/2 with the increase of L, and increases and decreases with the increase of h.
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  • ISHIKAWA Masanobu
    1996Volume 5Issue 2 Pages 119-
    Published: 1996
    Released on J-STAGE: August 01, 2025
    JOURNAL FREE ACCESS
    In this paper, we propose a logistics model for post-consumer packaging waste recycling (Grid City Model). This model can predict the transport distance and the number of trucks needed to collect post-consumer packaging waste for recycling. The parameters needed are population, area, waste discard unit, number of collection stations, size of a collection truck, frequency of collection. Trade-off relation between the service level of waste collection and environmental load or the number of trucks is explicitly described in the Grid City Model. Both the unit transport distance (D/W) and the number of collection trucks per a unit waste (M/W) are described as a sum of the ”density effect” and the ”scale effect”: the density effect depends on the effective capacity of the collection truck (q) and independent of the waste discard unit (u) nor the collection, frequency (f); the ”scale effect” depends on both u and f and independent of q. Both D/W and M/W of sorted collection of PET bottle is much larger than those of the house-hold waste in a typicalcase.
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