• 제목/요약/키워드: Clothing Insulation

검색결과 124건 처리시간 0.022초

저열유속 조건의 복사열 노출에 따른 소방보호복의 열보호성능 측정에 관한 연구 (Study on the Thermal Protective Performance Measurements of Fire Fighter's Protective Clothing for Low Level Radiant Heat Exposures)

  • 이준경;방영준;방창훈;권정숙
    • 한국화재소방학회논문지
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    • 제28권2호
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    • pp.1-8
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    • 2014
  • 보호복 섬유 및 재료의 개발을 통해 나아진 단열 성능을 제공함에도 불구하고 보호복의 화상 방지는 아직도 중요한 사항이다. 화염으로부터의 보호성능을 보장받기 위해서 보호복의 정확한 성능검증이 필요하며, 열보호 특성을 정확히 파악하기 위해 ISO 등은 시험방법을 표준화하여 제시하고 있다. 하지만 대부분의 경우, 높은 열유속 조건에 대해 보호복의 열보호 성능을 시험하는 것으로 되어 있어, 고열유속에 의한 시편의 파괴가 일어나기 쉽다. 그러므로 낮은 열유속 조건에서 보호복의 열보호 성능을 측정하는 방법이 필요하며, 본 연구에서는 낮은 열유속에 대한 열보호 성능을 측정할 수 있는 화상 및 통증유발시간에 기초한 개선된 RPP(복사열 보호 성능) 지수와 그의 측정방법을 제안하였다. 또한 제안된 열보호성능 측정 방법을 실험을 통해 확인하고, 보호복의 비정상열전달특성을 파악하였다. 또한 기존의 여러 가지 열보호성능지표들과 제안지표와의 관계를 제시하였다.

친환경 섬유소재에 대한 대학생들의 인식도 연구 (University Students' Awareness of Eco-friendly Textile Fiber)

  • 이선영;이승구;김정화;이정순
    • 한국생활과학회지
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    • 제21권4호
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    • pp.781-790
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    • 2012
  • In midst of growing interest and awareness towards sustainability and being "green", there has been increased demand for sustainable clothing. In the purpose of boosting eco-friendly textiles industry, this research was conducted by investigating environmentally-conscious clothing behavior of university students and assessing their views on eco-friendliness of fibers. Thus, their awareness on recycled polyester fiber was evaluated. The research was conducted by surveying 257 university students residing in Daejeon. The data were analyzed with descriptive statistics, factor analysis, and reliability analysis, using SPSS 19.0. The results were as follows. 1) The majority of the subjects answered "Disposing clothing in the clothing recycling container" to reduce environmental impact. 2) Six factors of eco-friendliness of fiber were extracted as reutilization, unfinishedness, economics, environment preservation, natural materials, and slow fashion by using factor analysis. 3) Subjects scored organic cotton as most eco-friendly among various fibers. Recycled polyester fiber was graded less sustainable than natural fiber, but more eco-friendly than artificial one. 4) In assessment of subject's awareness of recycled polyester fiber, they highly valued on resource-reutilization and economics, but less valued on its hygiene, thermal insulation and health-functionality.

섬유의 종류와 압축특성 및 수분전달특성이 보온용 부직포의 열전달에 미치는 영향 (The Effect of Fiber Type, Compressional Resilience and Moisture Transport Properties of Fiber on the Heat Transfer of Insulating Nonwovens)

  • 김희숙;김은애
    • 한국의류학회지
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    • 제20권4호
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    • pp.647-654
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    • 1996
  • The purpose of this study was to analyze the effect of fiber type, compressional resilience and moisture transport properties of wool and polyester fiber on the heat transfer of insulation nonwovens. The results obtained were as follows: 1) Overall heat transfer of wool nonwoven was slightly higher than that of polyester nonwovens. Warmability of wool nonwoven was lower than that of polyester nonwovens. The radiative heat transfer was in the range of 11~18% of overall heat transfer in polyester nonwovens and 25% in wool nonwoven. 2) As wool nonwoven compressed, overall heat transfer was increased by increasing radiative heat transfer and wamability was decreased due to the poor compressional resilience. 3) Increasing rate of heat transfer by moisture absorption in wool nonwoven was lower than that of polyester nonwovens. Thickness and compressional resilience of wool nonwoven were reduced extremely by moisture absorption.

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체표면적 산출식에 관한 연구 -40대 여성을 중심으로- (A Study of Body Surface Area Calculation -Centering around 40 Ages-)

  • 임순
    • 복식문화연구
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    • 제2권2호
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    • pp.385-394
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    • 1994
  • Data of the body surface is a necessary unit for the measuring of metabolism energy and activity energy. And also, these data are referring to check the degree of retaining warmth of clothes, to find the effect of heat insulation according to body surface, to calculate an average temperature of skin, and to study the several fields of clothing. In measuring of body surface, it si actually impossible to measure a subject's body surface in each experiment. As the experimental method, both gypsum method, by which the shape of body an be copied as it is, and the weighting method from which planed body surface area can be measured with consistent thickness of polyprophylene film as used. In fact, every female subject feels uncomfortable to measure her body surface as a naked body. There, it is providing a simple, accurate regressive equation with weight & height as variable factors in this study. This equation is as=117.02W+77.31H-3344.94 with average error : 0.1%, absolute average error : 2.07%.

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천연 소재를 이용한 보온덮개 개발 및 사업화 방안 (Development and Commercialization of Warm Covers Using Natural Fabric)

  • 최주현;백현국;조윤진
    • 융합정보논문지
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    • 제8권1호
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    • pp.227-233
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    • 2018
  • 본 연구는 보온성이 우수한 시설하우스용 보온덮개를 개발하고, 나아가 해당 제품의 사업화 방안을 제안하는 것을 목표로 하였다. 공기층을 형성시켜 보온 효과를 증대시키기 위해 우모를 충전재로 사용하였는데, 이때 우모는 의류나 기타 섬유 제품에는 잘 사용되지 않고 폐기 처분되는 깃털(Feather)을 사용하였다. 개발된 보온덮개는 시설하우스의 외측을 덮어 농작물을 보온하는 제품으로, 우모가 충전되는 충전재, 패딩, 내피, 단열재, 외피를 포함하는 다층 구조로 이루어졌으며, 실험을 통해 보온율을 검증하였다. 다양한 적용을 위해 시설하우스의 내측 또는 내부 소형 하우스에 사용될 수 있는 보온 덮개도 개발하였다. 나아가 기술과 마케팅의 융합 개발 체제를 통해 제품화에 성공하였으며, 마케팅 전략을 도출하여 사업화 방안을 제안하였다. 본 기술은 보다 다양한 시설하우스 자재나 기타 산업용 제품에 응용 가능할 것으로 본다.

Skin Wettedness 분석을 통한 아웃도어웨어의 착용 쾌적성 평가 (Evaluation of the Wear Comfort of Outdoorwear by Skin Wettedness Analyses)

  • 정정림;김희은
    • 한국의류산업학회지
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    • 제11권6호
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    • pp.947-952
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    • 2009
  • The purpose of this study is to analyze skin wettedness($w$) used as the rate index of thermal comfort, and to evaluate the wear comfort of outdoorwear. Skin wettedness is widely used to express the degree of thermal comfort. If skin wettedness exceeds a certain threshold, the body feels damp and discomfort. An experiment which consisted of rest(30 min), exercise(30 min) and recovery(20 min) periods was administered in a climate chamber with 10 healthy male participants. Two kinds of outdoorwears made of 100% cotton fabrics (Control) and specially engineered fabrics having feature of quick sweat absorbency and high speed drying fabric (Functional) were evaluated in the experiment. The condition of climate chamber was controlled according to the thermal insulation of 4 kinds of experimental ensembles(E1~E4). Total sweat loss, sweat loss absorbed into clothing and skin temperature were measured. Skin wettedness was calculated from the ratio of evaporative rate to the maximal evaporative capacity. Skin wettedness of 'Functional' was lower than 'Control' in the 3 kinds of ensembles(E1, E2, E4) because the materials of 'Functional' were composed of quick sweat absorbency and high speed drying fabrics, water vapour permeability and waterproof fabrics.

여름철 냉방 조건에서의 착의 훈련이 인체의 체온 조절 반응에 미치는 효과 (Effect on the Human Thermoregulation of Wear Training in Air Condition)

  • 김미경;최정화;염희경
    • 한국의류학회지
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    • 제19권3호
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    • pp.504-515
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    • 1995
  • This study was performed to investigate that wear training using thermal insulation with clothes has the effect on the human thermoregulatory response, especially on the heat tolerance. Twelve men and women in twenties wert divided into the control group, the training groups and each group except the control group had participated in wear training. The heat tolerance was assessed in all subjects who had participated in the experiment carried out in hot environment(40$\pm$1$^{\circ}C$, 50$\pm$5%RH) by such parameters as rectal temperature, skin temperature, systolic blood pressure, diastolic blond pressure, plume rate, total sweat volume, local sweat volume, subjective sensation, and the differences of heat tolerance in each group were compared. The results were as follows: In hot environment(4$0^{\circ}C$) the changing width of rectal temperature was decreased in the control and the heavy clothing group. Forehead and abdomen temperature in hot environment were significantly decreased after the training. Sweat rate was higher after the training than before. In all experimental groups, systolic and diastolic blood pries.;uses in hot environment(4$0^{\circ}C$) were significantly decreased after the training.

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저온창고 작업자의 열적 쾌적성 증진을 위한 유니폼 조사 연구 - 대형 할인 마트 종사자를 대상으로 - (Research for Development of Thermal Comfort Uniforms of Workers on a Low Temperature Storage)

  • 유화숙
    • 한국의류산업학회지
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    • 제12권4호
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    • pp.513-522
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    • 2010
  • The aim of this study is to investigate the actual state for the development of the thermally comfortable uniform for workers on a low temperature storage. Observation, interview and survey were executed focusing on the environment, clothing, and human factors which have effects on the comfort of workers. Of 400 distributed, 253 questionnaires were analyzed through descriptives, frequency, ANOVA, t-test, multi-response analysis, correlation analysis with SPSS 12.0. The results are following. Coming and going between a selling area and cold storages, the workers showed to experience a big temperature gap. They indicated to feel cold on face and hands which were not covered by clothing and have got sick because of low temperature. The workers wanted the uniform made of functional fabrics, especially heat insulation fabrics. Female workers rather than male workers, the older, and the longer their working period were, the more uncomfortable they revealed to feel. The workers who works on the daily products part or mainly on the freezer appeared to feel cold more than any other workers. In conclusion, it was found that the uniform which consider steady state and unsteady state heat transfer together must be developed.

기능성 등산복의 착용실태 조사 (Research on the Wearing Condition of Functional Mountaineering Garments)

  • 이아람;정정림;김희은
    • 한국의류학회지
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    • 제33권12호
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    • pp.1935-1940
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    • 2009
  • 본 연구는 기능성 등산복의 착용실태를 조사하여 등산복의 개발과 차별화에 기여하고자 하였다. 등산을 즐기는 107명의 응답자들이 본 설문조사에 응해주었고 문항은 개인정보, 구매습관, 등산복 선택시 가장 중요하게 여기는 기능, 본인이 소유한 등산복의 기능에 대한 만족도, 자유기술의 5개 항목으로 이루어져 있었다. 응답자들은 기능성 등산복을 선택할 때에 가장 중요하게 여기는 특성으로 흡습속건성, 보온성, 방수방풍성, 스트레치성 기능을 열거하였다. 이 기능들은 한 겹의 의복으로 착용하기보다는 여러 겹 겹쳐입을 경우 특히 그 효과가 증대한다 할 수 있다. 그리고 스트레치성의 경우 하체의 움직임이 많은 등산 활동 시 하의에 특히 필요한 기능이라 응답하였다. 그리고 응답자들은 기능성 등산복의 가격이 너무 비싸다고 응답하였으며 세탁이 불편하다고 답하였다. 이러한 설문결과로 보아 기능성 등산복의 개발 시 소비자들이 중요하게 여기는 기능을 고려해야 할 뿐만 아니라, 세탁성이나 가격과 같은 소비자들이 개선을 원하는 요소들에 대한 고려도 필요할 것이다.

공군 정비파카의 기능성 개선을 위한 실태조사 (An Empirical Study on Air Force Mechanic Parka to Improve the Functionality)

  • 이성지;남윤자;최희은;최영림
    • 한국의류산업학회지
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    • 제13권5호
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    • pp.759-768
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    • 2011
  • This study is designed to understand current wearing conditions of air force mechanic parkas and evaluate their functionality by examining the wearing conditions and wearers' subjective assessment. By doing so, it also intends to identify issues that require improvements; and to provide basic data for future development of air force mechanic parkas. A survey was conducted as a study methodology, and the collected 1,628 questionnaires were analyzed. Findings of this study are as follows. 1. In the usability assessment, it was found that visibility of body sides was needed to be enhanced since reflective tapes were attached only to the front and back of the body; pockets were too big, but not convenient to keep mechanic tools; the design of hiding hood was not suitable for water-proof clothing; and a new design of size-controllable hood was called for since the hood blocked eye sight. With respect to the fabric, dissatisfaction was identified with durability, cold-proof and fire-proof features. 2. In the mobility assessment, respondents showed low satisfaction with collar heights and neck girths. Mobility score was over moderate level on average, except the parka length that obstructs wearers' movement, and neck and collar size. 3. In the wearability assessment, respondents presented moderate satisfaction with pleasantness, weight, pressure and dampness. However, insulation was found unsatisfactory. Based on the result, this study proposed improvement plans on design, pattern and fabric; and is expected to serve as basic data for developing more effective and functional air force mechanic parkas.