• 월간포장계
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• 통권324호
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• pp.48-52
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• 2020

• 월간포장계
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• 통권325호
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• pp.48-52
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• 2020

• 한국포장학회지
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• 제22권3호
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• pp.49-58
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• 2016

Corrugated board provides packaging for most diverse industries with a share of over 50%, due to the numerous advantages they offer a good protection of the products. In other hand corrugated board fails in environmental conditions, indicating that relative humidity or temperature is higher. These effects directly damage the product packaged. To overcome on this problem recently corrugated boards produced with functional material, "functional corrugated boards," have become more available in the current market. A number of commercialized forms of functional material are coated or composited products with inorganic materials, for example "Nano clay" as representative. However, although the use of functional materials is increasing in corrugated boards, the several concerns such as over cost, environmental friendly materials, recycling, and toxicity affect consumer perceptions and acceptance. In the past, number of researcher focused on process of box compression and the utility of box compression testing etc., best of our knowledge there is no review paper which focus on the functional corrugated boards used in food packaging applications. This paper aims to review the availability of functional corrugated boards in the current market, past research studies on functional material and present the current status of functional corrugated boards in leading countries.

• 대한본초학회지
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• 제23권2호
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• pp.9-17
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• 2008

Objectives : The purpose of this report was to provide the information packaging of herbal medicines by analyzing papers. We investigated the packaging materials, packaging methods and expiration date of herbal medicines by analyzing papers of the Korea, Japan and China. Methods : We survey herbal medicine-related law and crude drug monograph of compendium in each three country, we purchased herbal medicine of the Korea, Japan and China in the market and verify the expressed-item in packing paper. In case of Japan, we examine packaging materials, packaging methods, and expiration date of herbal medicine in pharmaceutical company. Results : The pharmaceutical company in japan used the methods of nitrogen gas pouring, vacuum packing for the herbal medicine packaging. The expiration date of the herbal products in Japan is generally 3 to 5 year after packaging. And packaging materials were aluminium and polyethylene. In Korea, pharmaceutical company used airtight packing for the herbal medicine packaging and expiration date of the herbal product were generally 3 year after packaging. Packaging materials were polyethylene, nylon or polyethylene-nylon mixed materials. In China, pharmaceutical company also used airtight packing for the herbal medicine packaging, and the expiration date were generally 5 year after packaging. Packaging materials were polyethylene, wrapping paper-used parcel or tea leaves filter paper. Conclusion : This results can present the basic data for expiration date and preservation methods of the herbal roots in Korea.

• 한국포장학회지
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• 제6권1호
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• pp.1-11
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• 2000

In optimum design of packaging container for bulk materials, minimum board area, compression performance and distribution efficiency must be considered. In this study, mathematical models for minimum board area (RMA), compression strength (CS) and maximum compression strength per unit board area (MCSA) of container as algorithm for optimum design of packaging conatiner for bulk materials were developed as follows : RMA=f(V,D), ${\alpha}_{RMA}=f(V,D)$, MCSA=f(V,D), and ${\alpha}_{MCSA}=f(V,D)$. In order to develop these models, compression test according to various dimensions of container and response surface analysis for minimum board area, compression strength, and maximum compression strength per unit board area of container were carried out. In developed models, volume and depth of container were principal independent variables. Through the verified results for these models, optimum design of packaging container on the design conditions and limit conditions was possible. These models might be used in developing optimum design software of packaging container for bulk materials.

• 한국전기전자재료학회:학술대회논문집
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• 한국전기전자재료학회 2006년도 하계학술대회 논문집 Vol.7
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• pp.307-308
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• 2006

In this paper, we propose an ultra wideband pass filter of ring type with embedded stripline stub. The fractional bandwidth was 98 % at the center frequency of 8 GHz and insertion loss was below 1 dB in passband. Two kinds of dielectric materials with the permittivity of 7.8 and 40, respectively were adopted in evaluating the suggested filter structure. As the permittivity of material became larger, the size of filter smaller as expected without any sacrifice in filter performance. In summary, the suggested filter structure has smaller size due to the embedded stripline stub and can be minimized by adopting dielectric material with higher permittivity again.

• 월간포장계
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• 통권290호
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• pp.72-77
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• 2017

• 월간포장계
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• 통권344호
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• pp.78-80
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• 2021

• 한국포장학회지
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• 제22권3호
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• pp.41-47
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• 2016

This paper provides an overview of kimchi packaging technology, focusing on packaging materials, package design, and active/intelligent packaging technology for kimchi. From a packaging-material standpoint, although various materials have been used to ensure customer satisfaction and convenience, plastic is the most widely used material, in the form of bags, trays, pouches, and rigid containers. Additionally, recent efforts in the kimchi packaging industry have allowed companies to differentiate their products by using different packaging materials and technologies, while simultaneously improving product safety and quality. On the other hand, the biggest problem in kimchi packaging is excess $CO_2$ production, leading to package expansion and leakage. To alleviate this problem, the use of $CO_2$ absorbers, high $CO_2$-permeable films, and degassing valves, in addition to the use of different packaging systems, has been investigated. Active and/or intelligent packaging systems have been developed, to include active functions beyond simply inert, passive containment and protection of the kimchi product. However, most such approaches are not yet adequately effective to be useful on a commercial scale. Therefore, further studies are needed to resolve the limitations of each technology.

• 한국포장학회지
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• 제25권1호
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• pp.11-16
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• 2019

본 연구는 냉동용 포장재의 현황 및 특성을 분석하기 위해 국내외 연구논문에서 이용된 냉동 식품용 포장재를 분석하였고 유통되고 있는 냉동 식품을 조사하였다. 또한 포장된 식품이 냉동되었을 때 포장재 내부의 온도 및 내용물의 심부 온도 변화를 분석하였다. 포장재 재질로는 폴리에틸렌(PE)과 폴리아마이드/폴리에틸렌(PA/PE) 다층필름이 주로 이용되고 있음을 확인할 수 있었다. 냉동 식품의 포장에 이용된 포장 형태별 사용 빈도는 플라스틱 파우치가 39.5%로 가장 많았으며, 플라스틱 용기(37.2%), 스탠드업 파우치(19.8%), 보냉팩(3.5%)순으로 사용되었다. 포장된 후 냉동되는 제품의 포장에 의한 내용물의 냉각 속도 영향을 분석한 결과, 온도 변화에 대한 요인으로 필름의 종류보다 필름의 두께에 의한 것이 더 크게 작용하고 필름 내 공기 층은 온도 하강 속도에 영향을 주므로 공기 층을 제거한 포장이 냉각속도를 높이는데 유리하였다. 냉동 조건에서의 내충격성과 유통 중 차단성을 고려하고, 열전도도가 상대적으로 높고 진공도를 높여 공기층을 줄일 수 있는 폴리아마이드/폴리에틸렌재질의 포장재의 선택과 두께를 최소화 하는 방안이 가장 효율적이라고 판단된다. 본 연구는 냉동식품용으로 이용되는 포장재 및 식품을 포장한 후 냉동을 진행할 경우 포장에 의한 온도 변화에 대한 기초 정보를 제공한다.