• Title/Summary/Keyword: 병포장

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The Current Status of Recycling Process and Problems of Recycling according to the Packaging Waste of Korea (국내 포장 폐기물에 따른 재질별 재활용 공정 현황 및 재활용 문제점)

  • Ko, Euisuk;Shim, Woncheol;Lee, Hakrae;Kang, Wookgeon;Shin, Jihyeon;Kwon, Ohcheol;Kim, Jaineung
    • KOREAN JOURNAL OF PACKAGING SCIENCE & TECHNOLOGY
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    • v.24 no.2
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    • pp.65-71
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    • 2018

  • Paper packs, glass bottles, metal cans, and plastic materials are classified according to packaging material recycling groups that are Extended Producer Responsibility (EPR). In the case of waste paper pack, the compressed cartons are dissociated to separate polyethylene films and other foreign substance, and then these are washed, pulverized and dried to produce toilet paper. Glass bottle for recycling is provided to the bottle manufacturers after the process of collecting the waste glass bottle, removing the foreign substance, sorting by color, crushing, raw materializing process. Waste glass recycling technology of Korea is largely manual, except for removal of metal components and low specific gravity materials. Metal can is classified into iron and aluminum cans through an automatic sorting machine, compressed, and reproduced as iron and aluminum through a blast furnace. In the case of composite plastic material, the selected compressed product is crushed and then recycled through melt molding and refined products are produced through solid fuel manufacturing steps through emulsification and compression molding through pyrolysis. In the recycling process of paper packs, glass bottles, metal cans, and plastic materials, the influx of recycled materials and other substances interferes with the recycling process and increases the recycling cost and time. Therefore, the government needs to improve the legal system which is necessary to use materials and structure that are easy to recycle from the design stage of products or packaging materials.

  • https://doi.org/10.20909/kopast.2018.24.2.65 인용 PDF KSCI

Analysis of Glass Bottle using Glass Bottle Lightness Index (유리병 경량화 지수를 이용한 유리병 포장용기 분석)

  • Kim, Sun-Jong;Jang, Si-Hoon;Kim, Ki-Tae;Lee, Yu-Suk;Park, Su-Il
    • KOREAN JOURNAL OF PACKAGING SCIENCE & TECHNOLOGY
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    • v.19 no.2
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    • pp.109-115
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    • 2013

  • Glass bottle lightness index has been used as a guideline for the lightness of glass bottle. In this study, we developed a glass bottle lightness index (L) by modifying Emhart's lightness index. Domestic and foreign glass bottle products were collected in Korean market and classified into two groups, returnable bottle and one way glass bottle. Emptied glass bottle weight and volume were measured and written product's content volume were recorded to calculate the L value. Based on L value, 'acceptable' and 'optimum' criteria for design guideline of glass bottle were established for both returnable and one way glass bottles. Many of one way glass bottles failed to meet acceptable criteria (L=1.0), while returnable glass bottles mostly satisfied acceptable range (L=1.4). Few of one way glass bottles were even heavier than returnable glass bottles. Generally lightness index (L) of small size drink glass bottles (100 ml) were above 1.0, while these of juice glass bottles (180 ml) were close to acceptable criteria. Most foreign sauce glass bottles met the acceptable level, however most domestic souse glass bottles failed to satisfy acceptable criteria. A few foreign beer glass bottles satisfied optimum criteria, while most domestic beer glass bottles were acceptable level. Our results reveal that domestic glass bottles are mostly heavier than foreign glass bottles. In this paper, we suggest the use glass bottle lightness index as a design guideline for material resource reduction of glass bottle for Korean food and beverage industries.

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