• Title, Summary, Keyword: 보온성

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A Study on Wearing Sensations of Girls'High School Uniforms Based on Elasticity(1) -Focusing on Mechanical Properties and Insulation- (신축성에 따른 여고생 교복의 착용감에 관한 연구(제1보) -역학적 특성과 보온성에 관하여-)

  • 민경혜;류덕환
    • Journal of the Korean Society of Clothing and Textiles
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    • v.27 no.5
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    • pp.545-553
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    • 2003
  • A good school uniform leads students to good behavior and have them enjoy desirable school life. Therefore a better fabric for girls' high school uniform suggested through two series of studies; first, examined the various aspects of current uniforms. Second, made a new fabric for uniform considering elasticity for activity and comfortableness, and compared its characteristics with those of the current uniforms. The results are as follows; 1 Most of students wanted uniforms considering elasticity for activity and wearing. 2. The measurement of the elasticities of the uniform materials showed that the material which was made using the elastic material was more elastic than the currently used material by 42.12% in summer material and 20.05% in winter one. 3. The analysis using the combination of the values of mechanical properties showed that the elastic material was better in the wearing, tactile senses, and drape properties than the current material, even though it was a little worse in shape-stability. 4. To compare the thermal insulation, clo values were measured. For winter uniform, the elastic material was better than the current one in keeping warm. However, This study did not find any big difference between summer uniform materials.

Assessing Performance of the Sweating Simulator (Part 1) - Evaluation of Dynamic Insulation Properties - (인체 발한 시뮬레이터의 유용도 (제1보) - 동적 상태에서의 보온성 측정 -)

  • 김은애;유신정;심현섭;김정진
    • Proceedings of the Korean Fiber Society Conference
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    • pp.263-266
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    • 2003
  • 섬유제품과 기술의 스마트화에 따라 소재와 가공 및 프로세싱에서 새로운 개념과 복합적인 기능을 가진 섬유제품이 개발되고 있으나 이들 제품을 평가하는 기술이나 표준 또는 장비는 이에 부응하지 못하는 경우가 많다. 섬유제품의 주요 성능중의 하나인 착용감을 평가하는 기술은 레저ㆍ스포츠 웨어의 개발이 활발하고 수요가 급증하는데 비하여 이들 성능을 제대로 평가하는 기술은 확립되어 있지않은 상태이다. (중략)

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A Study on the antimicrobial of cotton fabric by cationic compound (면직물의 카티온 유기제에 의한 항균성에 관한 연구)

  • 권윤정;차민경
    • Proceedings of the Korean Fiber Society Conference
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    • pp.417-418
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    • 2003
  • 섬유제품을 착용하면, 땀ㆍ피지ㆍ때 등 피부로부터 대사 노폐물이 섬유표면에 부착되고, 의복이 오염되어 비위생적이 된다. 오염물이 부착된 섬유제품에서는 악취가 발생함과 더불어, 보온성이나 통기성이 저하하기 때문에 착용감이 나빠진다. 피부에 상존하는 세균이나 외부로부터 부착된 미생물은 섬유에 부착된 인간의 노폐물이나 오염물질 등의 유기화합물을 소화시켜 휘발성 악취물질을 발생한다.$^{1)}$ 항균 방취 가공은 미생물의 부착과 번식을 억제하고 나아가서 불쾌감을 없애주는 기술이다. (중략)

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환경친화섬유를 이용한 제품개발 및 소재특성 분석

  • Gwak, Seong-Hyeon;Park, Jun-Su;Lee, Jang-Hun;Kim, Yun-Yeong
    • Proceedings of the Korean Society of Dyers and Finishers Conference
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    • pp.141-142
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    • 2009
  • 환경친화섬유 대나무, 옥수수, 콩, 바나나, 종이섬유 5종의 특징과 이를 원료로 한 필라멘트사 2종과 방적사 5종을 사용하여 제조된 직물의 항균성, 소취성, 보온성, 흡수성 등에 대한 성능평가를 실시하여 제품별 기능성 평가 자료를 정리하였다.

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Recycling Apparatus of Organic Wastes by Direct Steam Heating (수증기 직접가열에 의한 유기성 폐기물 재활용장치)

  • Han, Doo-Hee
    • Proceedings of the KAIS Fall Conference
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    • pp.294-296
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    • 2007
  • 본 논문은 고온 고압 수증기를 활용한 유기성 폐기물의 가수분해현상과 이를 이용한 퇴비 등의 재활용 방안을 제시한다. 사료화의 경우는 3.27 기압 $135^{circ}C$ 전후의 포화수증기로 교반처리하여 영양소 파괴를 줄이고 멸균 및 가수분해가 일어나게 하여 소화가 잘되는 사료를 만들 수 있고, 퇴비화의 경우는 16기압. $200^{circ}C$ 전후의 포화수증기로 교반처리하여 가수분해, 산가수분해, 열분해 및 탄화가 일어나도록 하여 목초액과 활성탄을 함유한 보온성, 보비성 및 통기성이 양호한 퇴비를 만든다. 응축수는 액비로 사용가능하므로 완전 재활용이 가능하다.

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A Study on Blasting Vibration Control Criteria for Pre-insulated Pipe through the Numerical Analysis (수치해석을 이용한 이중보온관 발파진동 관리기준에 관한 연구)

  • Choi, Bong-Hyuck;Cho, Jin-Woo;Kim, Jin-Man;Yoo, Han-Kyu
    • Journal of The Korean Society of Civil Engineers
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    • v.33 no.4
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    • pp.1471-1478
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    • 2013
  • In this paper, numerical analysis with varying distance and burial depth was performed to recommend the blasting vibration control standard for pre-insulated pipes. The blasting load model applied in the numerical analysis was verified to the comparison with the results of the field tests. It was determined from the results of the numerical analysis that the effective stress either exceeds or approaches the allowable stress of the inner steel pipe for vibration velocity greater than 4.0cm/sec while stability is obtained for vibration velocity below 4.0cm/sec. Therefore, it was determined that the blasting vibration control criteria for pre-insulated pipes must not exceed 4.0cm/sec.

A Study on the Improvement of Cold Protective Clothing for Mailman (우편배달원 방안복 개선을 위한 연구)

  • Kwon, Myoung-Sook;Seok, Hye-Jung
    • Journal of the Korean Society of Costume
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    • v.57 no.8
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    • pp.14-23
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    • 2007
  • The purpose of this study was to investigate the present condition of cold protective clothing for mailman, to improve its design in movement, fitness, and other functions, and supply basic data for its performance evaluation. The results are as follows : The 46.60% of those questioned did not satisfy current clod protective clothing fer mailman. Especially, they considered dissatisfactory in properties such as waterproof, comfort, activity, and sweat absorption. The newly developed cold protective clothing is two-piece style composed of jacket and pants. Both jacket and pants are composed of inner and outer clothing individually. In both jacket and pants, their outer clothing's material was waterproof, windproof, and breathable shell fabric on which PTFE film laminated and their inner clothing's material was 100% polyester Polar polis to have better insulation property. The jacket has attachable cap which can be used as rain gear and set-in sleeve with stand collar. It also had big outside patch pockets and side seam pockets to ensure enough storage space. The pants have knee pads to give free movement to knees and slant side pockets. Inner clothing of both jacket and pants can be worn during working inside without out clothing. Insulation of the newly developed cold protective clothing was not better than current one except right hand, left hand and left foo. It is considered that is because thickness of material is the most important factor to influence insulation.

A Study on the Thermal Characteristics of Comfortable Heat-Retaining Winter Clothing (겨울용 쾌적 보온성 의복의 온열특성에 관한 연구 - 무풍환경하에서 -)

  • Song, Min-Kyu;Kwon, Myoung-Sook
    • Journal of the Korean Society of Costume
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    • v.58 no.6
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    • pp.24-34
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    • 2008
  • The purpose of this study was to create a database of information on fabric factors(i.e., fabric insulation, fabric weight, clothing weight, fabric thickness, air permeability, and water vapor resistance) of clothing used for insulations, to compare them according to clothing types, and to estimate thermal resistance of clothing using these factors. A total of 25 kinds of clothing were selected(9 types for suits, 6 types of jacket, 5 types for shirts, and 5 types for trousers). The results of this study were as follows; Thermal insulation of clothing showed the highest positive correlation(0.85, p>0.01) with thermal insulation of fabric and very high positive correlation with water vapor resistance, fabric thickness, fabric weight, and clothing weight, respectively, 0.77, 0.77, 0.73, 0.71(p>0.01). Fabric weight of jacket was higher than that of shirts and trousers. Air permeability of shirts was the highest of clothing types. Clothing insulation of jacket was higher than that of shirts and trousers and its fabric insulation was also the highest of clothing types. Regression analysis showed that fabric thickness, water vapor resistance, and fabric weight would be useful factors for estimating the thermal resistance of clothing.

다관능성 에폭사이드로 처리한 모직물의 구김회복성에 관한 연구

  • 문수진;강태진
    • Proceedings of the Korean Fiber Society Conference
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    • pp.334-337
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    • 1998
  • 양모는 흡습성과 보온성이 우수하고 위생적이며 염색성도 좋아서 고급 의류의 소재로서 오랫동안 이용되어 왔다. 그러나 최근 의복의 경량화와 밝은 색상 선호에 따른 구김 발생문제가 대두되면서, 구김을 제거하기 위한 다양한 연구들이 진행되고 있다. 섬유의 구김회복성을 증진시키기 위한 연구의 일환으로 견이나 양모에 있어서 에폭사이드 화합물 처리에 관한 여러 논문들이 발표되고 있다[1-4].(중략)

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Occurrence of Off-Odor and Distribution of Thermophilic Bacteria from Rice and Cooked Rice Stored at Electric Rice Cooker (쌀과 취반백미의 고온성 세균 분포 및 이상취 발생)

  • 박석규;고용덕;권선화;손미예;이상원
    • Korean Journal of Food Preservation
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    • v.10 no.1
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    • pp.70-74
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    • 2003
  • The distribution of mesophilic and thermophilic bacteria in milled rice was not different according to growing land and variety of rice. However, The number of these bacteria were abundant in milled rice of lower milling degree or longer storage period. The growth of thermophilic bacteria in cooked rice of electric rice cooker was rapidly increased during storage of lower temperature below 75 $^{\circ}C$. Thermophilic bacteria were not appeared just after cooking. After cooked rice was stored far 18∼24 hon thermophilic bacterial growth was rapidly increased by changing spore to vegetative cell. The positive relation between cell number of thermophilic bacteria and occurrence of off-odor was slightly observed. The number of thermophilic bacteria in upper cooked rice of oven and was higher than those in inner and lower cooked rice. Major volatile compound of milled rice cooked and stored in electric rice cooker was hexanal oriented from rice. After long storage, it was confirmed that furan was major volatile compound as off-odor.