• 한국의류산업학회지
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• 제17권6호
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• pp.1013-1019
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• 2015

As the interest in leisure and health increases, the domestic outdoor wear industry becomes bigger. The waterproofness of fabrics does not ensure the waterproofness of garments because of the stitch holes during the sewing process even with the seam sealing tapes. Thus the water leakage often becomes a problem during the end use. Still companies use fabrics waterproofness data for garments marketing because they are simple to run the test, less expensive than the whole garment testing, and easy to achieve the quality control. In this study the rain tower system for evaluating the waterproofness of garments has been developed and the waterproofness of the selected waterproof and breathable garments in the market were tested. The rain tower was consisted of rain tower room, rainfall forming system and measurement system. Two different levels of rainfall can be simulated with this system(100l/m²/hr and 450l/m²/hr). Jackets in the market have been tested at two different rainfall conditions. The temperature and humidity data inside jackets didn't provide much information on the waterproofness at severe rainfall condition(450l/m²/hr, 1 hour). However, water leakage was detected on the cotton undershirt inside jacket. 5 out of 8 jackets passed the normal rainfall condition(100l/m²/hr, 30 minutes). The newly developed rain tower system was able to evaluate the waterproofness of the jacket seams. It is recommended the further study on the detailed test conditions for the end use of the waterproof and breathable garments.

• 복식문화연구
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• 제26권4호
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• pp.503-518
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• 2018

The purpose of this study is to illustrate the design of safety suits based on energy-harvesting technology, particularly targeting street cleaners who must work at night with high mobility. The design focuses on applying lightweight energy-harvesting tools and illuminant into the wear. The design development reflects feedback from testers collected via survey constituting a key methodology. The development process has two main stages. Each stage uses a process of design prototyping, internal examination, test sampling, test wearing, and wearers' feedback via survey that consists of questions on visibility, wearing convenience, and washability. The first stage results show the design of safety suits with energy-harvested LED illuminant inserted and the survey results collected from street cleaners dressed in 4 sample and 80 actual suits in total. Improved based on the first-stage survey results, the second stage designs the suits with detachable energy-harvested EL tape. From these 5 sample and 30 actual second-stage suits, the additional survey indicates that this second-stage design facilitates more visibility and convenience in washing and wearing than the first-stage design. Accordingly, one can expect that this new design can apply not only to safety suits for night workers but also to handicapped or outdoor sportswear applications in the future.

• 패션비즈니스
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• 제19권5호
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• pp.1-16
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• 2015

The appearances and geometry structures of knitted fabrics have important effects on their functions as textile fabrics. Structural design of the woven fabric, prior to the manufacturing processes in the weaving mill, often leads to a similar predictable appearance in the final outcome with the corresponding weave design. The increase of the employment of elastic textile yarns in knitting fabrics for comfort stretch or outdoor sports wear knit products has, however, resulted in difficulties in predicting the final appearance of the knit structure design. Due to the stretchability and exceptional recovery behavior of the elastic yarns such as polyurethane elastomeric yarns, the appearance of the final product often differs from the initial knit design. At textile CAD program for preparing tricot knit designs has been employed in this study to predict the two dimensional appearance of the design. The similarities between the designs and corresponding knit products seem to be acceptable for the two-dimensional textile CAD program in this study. However, when elastomeric yarns are partially employed in the polyester filament tricot product, a considerable amount of departure from the design is apparent due to the constriction and/or deformation of property differences in the elastomeric yarns and polyester filament yarns. Therefore, another purpose of this study is to measure the departure of the final tricot product from the initial tricot design, especially in the case employing elastomeric yarns in the knit structure together with regular polyester filament yarns. For measuring the three-dimensional departure, a 3D scanning system has been used for the mesh reconstruction of the fabric specimen. Hopefully, the result from this study will be used as a guide to modify and improve the current textile CAD program proposed for the two-dimensional simulation of the tricot.

• 패션비즈니스
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• 제23권2호
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• pp.156-169
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• 2019

The objective of this study was to develop lightweight, stretchable, tight-fit smart sportswear using the conductive yarns into the garment and demonstrating its usefulness. Sportswears with the ability to control LEDs with respect to lighting of the surrounding were developed by applying embroidery with conductive yarns to 2 types of men's T-shirts and 2 types of women's leggings pants for outdoor activities and exercise purposes. LEDs were applied to the front and back of men's T-shirts and to the rear of the waist of women's leggings. Men's T-shirts were printed where the LEDs were to be applied, and inside, they were embroidered with conductive threads on the hot-melt fabric to be attached, and then connected with LED. Women's pants were embroidered on the elastic band, in the form of a sine wave that gives it ability to stretch, and finally the elastic band was hidden inside the waistband. The operation of the light sensor in the dark provided the ability to protect joggers from night drivers or cyclists. LEDs were activated when the wearer turns on the fashionable device on his/her shoulder by pressing it. It was able to reduce the risk of accidents by giving recognizability to vehicles, bicycles, and athletes approaching or passing by at night, and securing safe distance from vehicles, etc. Internal embroidery technology had the same flexible and lightweight functions as ordinary clothing products, making it possible to apply to tight-fit smart T-shirts or leggings pants designs.

• Asian Journal of Atmospheric Environment
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• 제4권2호
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• pp.97-105
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• 2010

A quantitative single particle analytical technique, denoted low-Z particle electron probe X-ray microanalysis (low-Z particle EPMA), was applied to characterize particulate matters collected at two underground subway stations, Jegidong and Yangje stations, in Seoul, Korea. To clearly identify the source of the indoor aerosols in the subway stations, four sets of samples were collected at four different locations within the subway stations: in the tunnel; at the platform; near the ticket office; nearby outdoors. Aerosol samples collected on stages 2 and 3 ($D_p$: $10-2.5\;{\mu}m$ and $2.5-1.0\;{\mu}m$, respectively) in a 3-stage Dekati $PM_{10}$ impactor were investigated. Samples were collected during summertime in 2009. The major chemical species observed in the subway particle samples were Fe-containing, carbonaceous, and soil-derived particles, and secondary aerosols such as nitrates and sulfates. Among them, Fe-containing particles were the most popular. The tunnel samples contained 85-88% of Fe-containing particles, with the abundance of Fe-containing particles decreasing as the distances of sampling locations from the tunnel increased. The Fe-containing subway particles were generated mainly from mechanical wear and friction processes at rail-wheel-brake interfaces. Carbonaceous, soil-derived, and secondary nitrate and/or sulfate particles observed in the underground subway particles likely flowed in from the outdoor environment by human activities and the air-exchange between the subway system and the outdoors. In addition, since the platform screen doors (PSDs) limit air-mixing between the tunnel and the platform, samples collected at the platform at the Yangjae station (with PSDs) showed a marked decrease in the relative abundances of Fe-containing particles compared to the Jegidong station (without PSDs).

• 감성과학
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• 제22권2호
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• pp.59-69
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• 2019

본 연구는 패션제품에 QR코드를 부착하여 소재와 세탁 등의 전문적 정보의 제공뿐 아니라 기업과 소비자, 소비자와 소비자를 연결하는 기능을 부여할 수 있도록 하기 위한 기초연구로 QR코드 적용 시 요구되는 정보에 대한 소비자의 인식과 선호를 조사하였다. 타 연령대보다 스마트폰 보급률이 높고 1인 가구의 비율이 높아 비대면 정보교환의 필요성이 높을 것으로 생각되는 20대를 대상으로 설문하였다. 현행 라벨을 통한 의류제품의 정보제공 방법에 대해서 개선의 필요성이 확인되었으며 특히 불충분한 정보제공, 전문적인 용어 사용, 세탁 기호의 불확실함이 불만족의 요인이었다. 따라서 다양한 방식으로 많은 정보를 전달할 수 있는 QR코드는 패션제품의 관리 정보제공의 효율적인 대안이 될 수 있을 것이다. 또한 응답자들은 아웃도어, 패딩, 정장 등의 고관여 의류 상품과 신체에 닿는 언더웨어류에 대해서 자세한 세탁방법, 사용 및 보관 시 유의사항, 소재의 기능성에 대한 정보를 얻고 싶어 했으며 캐주얼웨어, 코트에 대해서는 제품을 활용한 SNS 데일리룩, 제품과 어울리는 다른 상품, 비슷한 아이템의 추천 등 스타일링이나 의복 구매 정보를 제공받고 싶어했다. 따라서 QR코드를 이와 같은 다양한 정보 제공을 위한 웹사이트 또는 SNS의 연결수단으로 사용한다면 소비자들의 정보추구 욕구의 충족과 함께 현명한 제품 사용을 도울 수 있을 것이며 초 연결시대 패션제품의 새로운 역할을 부여하는 대안이 될 수 있을 것이다.

• 감성과학
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• 제22권4호
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• pp.97-106
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• 2019

본 연구의 목적은 직물형 스트레인게이지 센서의 종류와 측정 위치가 호흡 신호 검출 성능에 미치는 영향을 연구하는 것이다. 본 연구에서는 호흡 신호 측정을 위하여 두 가지 종류의 센서를 구현하고 이를 밴드에 부착하여 호흡신호를 검출하였다. 20대의 건강한 남성 8명을 대상으로 호흡 측정 밴드 2종을 순차적으로 피험자에게 착용하도록 하였다. 피험자가 편안하게 서 있는 상태에서 분당 15회의 호흡을 동기화시켰다. 30초 동안의 호흡 신호를 측정하고 10초간 휴식을 취하도록 한 후 다시 30초 동안의 호흡 신호를 반복 측정하였다. 측정 위치는 흉부와 복부에서 각각 측정하였다. 또한 동작 상태에서의 호흡 측정 성능을 검증하기 위하여 피험자를 80SPM의 속도로 제자리에서 걷게 하고 이 때의 호흡 신호를 동일한 실험 방법으로 측정하였다. 한편 참조 신호를 획득하기 위해 'BIOPAC Systems, Inc.'의 SS5LB를 착용하게 한 후 동시에 측정하였다. 센서의 종류, 측정 위치, 동작 상태의 총 8개 조합의 집단 간 측정 성능의 차이를 검증하기 위해서 SPSS 24.0을 사용하여 Kruskal-Wallis test와 Bonferroni 사후검정을 실행하였다. 또한 센서 종류, 측정 위치, 동작 상태에 따라 각각 차이가 있는지를 분석하기 위해 Wilcoxon test를 실시하였다. 분석 결과 동작 상태와 관계없이 CNT기반의 직물센서를 통해 흉부에서 호흡 신호를 측정 했을 때 호흡 신호 검출 성능이 가장 우수한 것으로 나타났다. 본 연구의 결과를 기반으로 향후에는 야외 환경에서 또는 일상활동 중에도 동작에 방해 없이 다양한 생체신호를 실시간으로 모니터링 할 수 있는 가슴벨트형 웨어러블 플랫폼을 개발하고자 한다.