• KOREAN JOURNAL OF PACKAGING SCIENCE & TECHNOLOGY
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• v.26 no.1
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• pp.33-39
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• 2020

The objective of this study was to evaluate the possibility for the coffee filter paper of Hanji. In this study, the samples for Hanji filter papers were prepared with three different mulberry fiber contents of 10, 30 and 50%(w/w). Surface brightness and apparent density of hand-made Hanji decreased with increasing mulberry fiber contents. However, values of thickness, tensile strength, wet tensile strength, burst strength, and folding endurance for hand-made Hanji increased by increasing the contents of mulberry fibers due to fiber-to-fiber bonding. The results of the coffee extraction test using the developed filter papers showed no significant differences between commercial filter paper and Hanji filter paper. Therefore, Hanji filter paper containing more than 30%(w/w) mulberry fiber may have potential uses for the dripped coffee filter application from a physical property point of view.

• Journal of the Korean Geosynthetics Society
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• v.6 no.4
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• pp.15-20
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• 2007

Recently, the demand for industrial and residental land are increasing with economic growth, but it is difficult to acquire areas for development with good ground condition. For efficient and balanced development of land, new development projects are being carried out not only the areas with inland but those with the soft ground as well. As soft grounds have complex engineering properties and high variations such as ground subsidence especially when their strength is low and depth is deep, we need to accurately analyze the engineering properties of soft grounds and find general measures for stable and economic design and management. Vertical drain technology is widely used to accelerate the consolidation of soft clay deposits and dredged soil under pre-loading and various types of vertical drain are used with there discharge capacity. Under field conditions, discharge capacity is changed with various reason, such as soil condition, confinement pressure, long-term clogging and folding of vertical drains and so on. Therefore, many researcher and engineer recommend the use of required discharge capacity. In this paper, the experiment study were carried out to obtain the discharge capacity of six different types of vertical drains by utilizing the large-scale model tests and discharge capacity, degree of consolidation with the time elapsed.

• Korean Journal of Food Science and Technology
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• v.33 no.4
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• pp.451-454
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• 2001

Fish paste containing mushroom, Agaricus bisporus, was prepared for the supplementary value of the product, and it was tested for the color, textural properties, and sensory attributes. With increasing amounts of the mushroom in fish paste, L value decreased and a value increased in the color changes while the b value was not significantly different. As the result of textural properties, folding test in all test samples showed AA that mean good flexibility. The hardness, elasticity, gumminess and brittleness of fish paste with the mushroom were increased but the strength was not significantly different. In overall acceptance of sensory evaluation, fish paste containing 10% of mushroom received the highest score. These results suggest that Agaricus bisporus can be applied to fish paste for the purpose of the varieties of product.

• Proceedings of the Korea Technical Association of the Pulp and Paper Industry Conference
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• 2007.04a
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• pp.257-263
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• 2007

본 논문은 내구성(durability) 및 내오염성(soiling resistance)이 매우 중요한 성질로 인식되는 유통지의 평가방법을 제안하는데 목적이 있다. 즉, 종이의 내구성 및 내오염성의 측정 및 평가에 있어서, 재현성 및 반복성이 우수하고 합리적인 측정방법 및 평가방법을 구축하는데 목적이 있다. 연구목적에 적합한 시료의 준비, 오염물의 조성, 실험장치 및 실험후의 타당한 평가방법 등에 대하여 선행 연구결과를 고찰하였다. 기존 방법의 수정과 새로운 장치의 제작 및 평가방법의 설정을 통해 재현성이 높은 평가방법을 정립하고자 하였다. 유통지의 내구성을 평가하는 방법으로는 습식, 내오염성, 건식 내오염성, 구김기공도, 내세탁성, 잉크 내마모도 등의 항목을 측정하여 개별항목으로 내구성을 가늠하거나, 몇가지항목에 각기 다른 가중치를 부여하여 구한 내구성 지수(durability index)의 개념으로 내구성을 평가하기도 한다. 본 논문에서는 내구성에 영향하는 요소로 강도적 성질요소(strength property value)와 내오염성 요소(artificial soiling value)로 구분하였다. 강도적 성질요소에서는 전통적으로 내구성과 관련이 깊은 것으로 인식되어 온 내절도(folding endurance), 인열강도(tearing resistance) 및 구김기공도(crumpled porosity)를 인쇄하기 전 용지상태에서 측정하여 4:4:2의 가중치를 주어 구하였다. 내오염성 요소는 국가별 기후특성에 따라 연평균 상대습도가 60% 이상인 경우 인쇄 시료를 대상으로하여 습식 내오염성, 건식 내오염성 및 내석검성을 평가한 후 6:3:1의 가중치를 주어 구하였다. 또한 연평균 60% 미만인 국가의 경우 3:6:1의 가중치를 부여하였다. 이렇게 구해진 강도적 성질요소와 내오염성 요소에 있어 강도적 성질요소는 궁극적으로 내오염성 요소에 영향하기 때문에 3:7의 비율로 가중치를 부여하여 최종적으로 내구성 지수를 구하였다. 이때의 점수가 60점 이상이면 내구성 용지로 정의하였다. 본 논문에서는 현장실험을 통하여 시제품을 제조하였다. 상기 설명된 방법으로 내구성 지수를 구한 결과, 일반 유통지 제조방법으로 제조한 경우 내구성 지수가 약 45점이었다. 반면, 새로 개발된 방법에 의한 고내구성용지(durability paper)의 경우 70점 이상을 나타내어 내구성이 향상되었음을 확인할 수 있었다.

• Journal of the Korean Society of Food Science and Nutrition
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• v.32 no.6
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• pp.855-858
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• 2003

The friend fish meat paste was prepared to enhance physiological functions by adding 0, 5, 10, 15, and 20% of king oyster mushroom (Pleurotus eryngii). The properties of fried gel were evaluated the color, quality properties and sensory characteristics. L-value was decreased, and a-value and b-value were increased by addition of king oyster mushroom. The folding test showed good level (AA). The quality properties showed that 10% addition of mushroom was the highest values in strength, hardness, gumminess and brittleness. The fish meat paste added 10% mushroom gave the highest favorite score in color, flavor, and overall acceptance. The results suggest that king oyster mushroom can be applied to fish paste for the purpose of high quality and functionality.

• Korean Journal of Fisheries and Aquatic Sciences
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• v.27 no.5
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• pp.495-500
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• 1994

Mackerel water-soluble protein solution Mackerel meat washing water were concentrated by isoelectric point shifting precipitation process, and the concentrates were utilized as a material for processing of an elastic gel food such as kamaboko. The water-soluble proteins were partly polymerized during the isoelectric point shifting precipitation process. Then, the water soluble protein concentrates were partly substituted for frozen minced Alaska pollack meat in processing of a good quality kamaboko. The maximum substitution percentage for good quality kamaboko manufacturing was concluded to be below $30\%$, according to the criteria of color difference, jelly strength and folding tests using the substituted recovered protein concentrates.

• Journal of the Korean Geosynthetics Society
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• v.7 no.1
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• pp.39-44
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• 2008

Recently, the demand for industrial and residential lands are being increased with economic growth, however, it is difficult to acquire the land for development with good ground condition. For efficient and balanced development of land, new development projects are being carried out not only the areas with inland but those with the soft ground as well. As soft grounds have complex engineering properties and high variations such as ground settlement especially when their strength is low and depth is deep, it needs to accurately analyze the engineering properties of soft grounds and find general measurement for stabilization and economic design and management. Prefabricated vertical drain technology is widely used to accelerate the consolidation of soft clay deposits and dredged soil under the preloading and various types of vertical drain are being used with the discharge capacity. Under field conditions, the discharge capacity is changed with various reason, such as soil condition, confinement pressure, long-term clogging and folding of vertical drains, and so on. Therefore, many researcher and engineer recommend the use of required discharge capacity. In this paper, the experimental study were carried out for two different types of vertical drains by utilizing the large-scale model tests and waste lime.

• Journal of Korea Technical Association of The Pulp and Paper Industry
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• v.44 no.4
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• pp.51-61
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• 2012

The new alkali pulping process combined with electron beam treatment was applied to utilize hemp bast tissues as a new valuable fibrous resource. Hemp bast tissues have some chemical properties with high lignin contents and holocellulose not to be defiberized by alkali pulping only, compared with the bast tissue of paper mulberry. To make up for the weakness of traditional alkali pulping process, electron beams were directly irradiated into the swelled bast tissue of hemp in NaOH solution and distilled water, and then facilitated the defiberization of hemp bast tissues. The papermaking from hemp bast fibers manufactured by the combination pulping process showed good apparent density, formation structure and air permeability, and had some mechanical properties with lower tensile, tear, burst strength and folding endurance. It is finally concluded that the combination pulping process with electron beam treatment could be suggested a new alternative for non-woody fibers.

• Journal of Korea Technical Association of The Pulp and Paper Industry
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• v.41 no.3
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• pp.66-70
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• 2009

Paper cultural heritages usually experienced the chemical and the physical deterioration because of various factors including preservation environment and the property of their materials. General restoration technology for paper cultural heritages is the lining. The application of the lining paper and the lining technology has varied depending on researcher's experiences. Therefore, each lining material and technology must be evaluated to develop a standard guide for preservation and restoration of paper cultural heritages. To date, various analysis techniques using lining paper, in terms of their materials, have been applied to analyses of causes and condition of damages, but it is difficult to develop a standard restoration treatment method of paper cultural heritages because it varies by their material. The Hanf, is made frrr the mulberry, is generally used for the lining in Korea.edt is required that the cr, in terms properties and general properties of Hanf, is used for lining papers, are evaluated to develop a standard guide for their restoration.ed this study, the general properties of several lining papers(Hanf), especially dimensave bility, were evaluated as part of the standardization of lining papers. The result have varied depending on the pulping chemical and the manufacturers. the basis weight, thickness and tensale strength of lining papers is bigger the paper treated by natural ash than the paper treated by sodium carbonate.ed case of formation, folding endurance, and dimensave bility, the paper treated by sodium carbonate showed better properties than those of the paper treated by natural ash.

• Journal of the Korean Society of Food Science and Nutrition
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• v.35 no.9
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• pp.1256-1260
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• 2006

To provide functional properties in fish paste, Styela plicata (Korean name: omandungi) having antioxidant and anticarcinogenic activity was added at 0, 5, 10, 15, and 20%. The fried fish pastes were investigated for color, textural properties, and sensory attributes. Fish paste containing 15% S. plicata showed the lowest values in lightness (L) and the highest values in redness (a) and yellowness (b). All test samples with 3 mm thickness had good flexibility and did not break even after folding 4 times. Fish paste containing 20% S. plicata showed the highest values in strength, hardness, and adhesiveness. In overall acceptance of sensory evaluation, fish paste containing 15% S. plicata acquired the highest score. These results support that S. plicata can be applied to fish paste products for the purpose of high quality and functionality.