Changes in Internal Pressure of Composite Film Packages by Their Drop Impact.

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  • 複合フィルム袋の衝撃落下による内圧変化に関する研究
  • フクゴウ フィルムブクロ ノ ショウゲキ ラッカ ニ ヨル ナイアツ ヘンカ

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The consumption of plastic containers used for packing foods was steadily increased in recent years, and so was the percentage in industrial waste. Attracting attention under these circumstances is the composite film with which the consumption of plastics can be reduced to 1/3-1/10 in weight of that required for hard plastic containers and which can be compressed to small volume after use. The subject focused up here relates to flexible packages which facilitate economical utilization of plastics made from limited resources of petroleum and effective reduction of plastic wastes. In particular, dynamic experiments were conducted to determine the causes of breakage during transportation of the packages containing liquid, for different viewparameters points including temperature and internal pressure of contents, and to clarify interrelationships among physical characteristics of film, types of contents and external force, in an effort to establish safe and economical transportation of products.

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