• Fashion & Textile Research Journal
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• v.8 no.1
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• pp.134-138
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• 2006

The washing efficiency of two types of washing machine- drum(drum washing) and drum using steam jet system(steam drum washing) was studied. The purpose of this paper is to clarify the performance of new steam drum washing. The relationship between washing temperature and washing efficiency(reflectance(%)) by soil removal, and that between washing temperature and electric energy consumption, Fabric damage evaluated by Danish wear method, Fabric shrinkage(%) during laundering were investigated, and compared with those in drum washing machine. Washing efficiency of steam drum washing according to washing temperature is better than that of drum washing. Electric energy consumption and fabric damage in steam drum washing are lower than those of drum washing. Fabric damage increased as washing temperature increased. Shrinkage of fabrics in steam drum washing and drum washing are about same. Therefore, we assumed that in the case of steam drum washing using steam jet system, washing efficiency remarkably increased, and fabric damage decreased, even with a lot of saving in given electric energy and water used.

• Journal of the Institute of Electronics and Information Engineers
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• v.51 no.8
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• pp.185-194
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• 2014

In this paper, we proposed the clothing management system using the smart hanger. Proposed system consists of smart hanger, base module, and server, and the smart hanger consists of MCU, LED, RFID reader, RF chip, ring sensor, and battery. The smart hanger reads the RFID tag attached to the clothes and wirelessly transmitted to the server. The server associated base module communicates with the smart hanger and transmits information to the server. The server manages clothing through the DB, and can display various information through the web page and the smart phone. In order to verify the usefulness of the proposed system, we did experiment with the management system for clothing store and laundry where using a lot of hangers. Performance tests of the smart hanger are applied to check the current consumption and can be predicted the battery life with the proposed low power algorithm. The clothing store management system can be increased sales and convenience of the consumer. The laundry management system can be increased the efficiency of laundry category and convenience of the consumer.

• Proceedings of the KIEE Conference
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• 2004.10a
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• pp.104-106
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• 2004

본 논문에서는 세탁기용 외전형 BLDC 전동기를 기본 모델로 하고, 이를 FEM 상용프로그램인 Maxwell을 이용하여 해석 및 설계를 하고자 한다. 본 논문에서 설계대상으로 하는 외전형 BLDC 전동기는 기존에 사용중인 모델로서, 내부의 고정 전기자는 기존의 모델에 맞도록 외경을 그대로 유지하면서 Teeth 등을 설계변수로 하였고, 외부의 회전 자석계자는 주어진 외경의 치수 범위 내에서 영구자석의 형상과 두께 회전자 요크의 두께 등을 설계 변수로 하여 코깅 토오크가 최소가 되도록 최적 설계를 하였다. 유한요소법을 적용하여 자속분포, 코깅 토오크, 토오크 둥을 해석하였고, 코깅 토오크의 최소화를 통하여 효율 및 전동기의 성능을 향상시켰다.

• Proceedings of the Korean Society of Disaster Information Conference
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• 2017.11a
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• pp.123-124
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• 2017

최근에 장시간 근무로 인한 대중교통 운전자들의 부족한 휴식과 수면, 통증, 정신적 스트레스 등은 피로 누적를 초래하여 대중교통 사고의 주요 원인으로 대두되고 있다. 이에 2016년 산업통상자원부 산업융합촉진사업의 일환으로 대중교통 운전자용 다중 생체 신호측정 스마트 의류 및 관련 시스템이 개발중에 있으며 본 논문에는 현재 개발중인 스마트웨어러블 의류의 내세탁성능에 대한 성능 시험방법을 제안하고자 한다. 성능시험 방법은 국내외 생체신호측정 스마트 의류의 care label(취급표시사항)을 통하여 hand wash의 조건으로 세탁을 표시하고 있으나, 1년의 warranty를 위한 시험을 위해서는 오랜기간이 필요하기 때문에, 좀더 가혹한 조건으로 진행하여 시간을 줄이고, 고객의 빠른 시장출시를 지원하도록 시험방법을 제안하였다.

• The Research Journal of the Costume Culture
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• v.21 no.6
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• pp.950-960
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• 2013

The purpose of this research is to provide accurate information of household washers and detergents for consumers, so that help the producers who make washing machine and detergent to get basic material and also help consumers to choose washing machine. Experiment was proceed with two type of washers to compare energy consumption, washing performance, rinsing effectiveness further, damage caused by entanglement of laundry and fabric was assessed. Detergent P and T were used to compare the performance related to differences of ingredients of detergent. Soiled fabrics of EMPA 108 set were used to evaluate performance of washing by different types of contamination. A summary of experimental results are : First, for the consumption of water, drum-type washer consumed 53% less than pulsator-type washer. On the other hand, the washing time was almost similar for both these machines, but pulsator-type washer showed shorter progress, implying that power saving was more efficient in this case. Second, the drum-type washer showed better performance for contamination with all types of detergent, but the pulsator-type washer showed better rinsing performance. Third, the drum-type washer performed less data of tangle level and fabric damage. Fourth, detergent "P" exhibited better washing performance than did detergent "T", regardless of the type of soil. And with no limit of detergent variety, water-soluble protein soil showed high removal rate, liposoluble soil especially pigment was hardly removed.

• Journal of the Korea Fashion and Costume Design Association
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• v.21 no.1
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• pp.181-189
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• 2019

The washability, redeposition, fill power, and fabric damage of wet cleaning and dry cleaning solvents were measured to identify the optimal type of washing that would increase washability while maintaining dimensional stability. The soiled fabric is a polyester cotton blend and the types of soil were wine, blood, make-up and sebum with carbon black. Petroleum and silicone solvents were used in dry cleaning. Results from this study are as follows. First, detergency is significantly influenced by the type of washing and type of soil. Wet cleaning is superior to dry cleaning. Wet cleaning shows a strong washing performance against hydrophilic soils, whereas, dry cleaning is stronger against hydrophobic soils. Second, redeposition is significantly affected by the type of washing, fabrics, and soils. Redeposition occurred little on cotton during wet cleaning, but showed a high rate for nylon. However, when the two types of fabric were dry cleaned, redeposition occurred on both types. Third, the fill power of duck-down is very affected by the type of washing. Resilience is the best in wet cleaning; and in dry cleaning, petroleum solvents showed a higher resilience when as compared to silicone solvents. Last, the level of fabric damage to cotton fabrics is highly influenced by the type of washing. Wet cleaning damages cotton fabrics significantly more than dry cleaning. For dry cleaning, petroleum solvents damage these fabrics slightly more than silicone solvents. In conclusion, the type of soil must initially be identified to determine the optimal type of washing. Special caution is required when textiles with particulate soil and nylon are washed. When considering the resilience of duck-down clothing, wet cleaning is more appropriate than dry cleaning. Dry cleaning, especially when using silicone-based solvents, is more suitable than wet cleaning for maintaining the shape of clothing.

• Journal of Korean Society of Environmental Engineers
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• v.31 no.11
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• pp.1025-1032
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• 2009

This study investigated a possibility to develop an adsorption process for volatile organic compounds (VOCs) of the solvent emitted during dry cleaning. Pitch activated carbon fiber (ACF) was chosen as an adsorbent of VOCs, and an electric swing adsorption process was utilized for the reproduction of the adsorbent after the completion of VOCs adsorption. Effects of ACF types and several solvents such as trichloroethylene (TCE) and toluene were examined on breakthrough curves and amounts of adsorbed VOCs. ACF was pretreated under various conditions in order to enhance the amounts of the adsorbed VOCs. Temperatures and voltages were measured for the reproduction of the ACF after full adsorption. ACF having micropores exhibited high adsorption of TCE, and high surface area of ACF could increase the adsorption property of toluene. In general, ACF could adsorb 41~54% TCE of the adsorbent weight. The increase of inlet VOCs concentration significantly decreased the breakthrough time and slightly lowered the amounts of adsorbed VOCs. Thus, ACF could effectively adsorb VOCs in low concentration in the feed stream. ACF pretreated by heat under vacuum showed excellent toluene adsorption with controlling oxygen functional groups on the ACF surface, which revealed that vacant carbon site could be the adsorption point of toluene. Most adsorbed toluene was desorbed at $150^{\circ}C$.

• Elastomers and Composites
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• v.49 no.1
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• pp.53-58
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• 2014

In this study, characteristics of visible-light responsive photocatalyst Weltouch, especially VOCs reduction of visible-light responsive photocatalyst coated nylon/polyester composite fiber for vehicle interior parts and materials were evaluated. Visible-light responsive photocatalyst Weltouch was observed for both anatase phase and rutile phase. It is activated by light longer than 420nm. VOCs and formaldehyde generated from visible-light responsive photocatalyst treated nylon/polyester composite fiber were reduced confirmly. Visible-light responsive photocatalyst was firmly attached to the surface of nylon/polyester composite fiber without elimination even after 25 times repeated washing. And washing durability of nylon/polyester composite fiber confirmed the excellence that reduction effects of VOCs after repeated washing has appeared as much as before washing.

• Journal of the Korean Society for Precision Engineering
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• v.31 no.4
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• pp.343-351
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• 2014

Washing machines designed to clean laundry have been more widely used at home as they reduce household labor and boost the quality of life. Technological advances and better standards of life increase demand for laundry washing performance. Energy efficiency regulations and consumer demand for the larger trend, washing machine makers should be done in performance studies to reduce power, and water consumption and the load on power transmission devices. In this study, performance of a fully automatic washing machine with unconstrained transmission is analyzed through experiment and CFD simulation. It is found that the interaction between laundry and transmission change the washing behavior and affect washing performance with regard to the degree of freedom. The results obtained in this study can be used in developing new washing machine transmissions and make them more robust.

• Proceedings of the Korean Society of Dyers and Finishers Conference
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• 2012.03a
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• pp.120-120
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• 2012

최근 주야간 산업현장의 근로자 안전성을 위한 식인성이 우수한 Hi-vis. 염색이 work-wear에 많이 적용되고 있으며, Hi-vis. 염색에서의 형광색상은 차별화된 패션성을 원하는 소비자에게도 레져용, 아웃도어용, 캐쥬얼 등에 많이 사용되고 있다. 형광염료는 주로 안료나 PET용 분산염료로의 전개가 일반적이며, 예전에는 형광안료 코팅을 통한 필름이나 테이프 등이 많이 사용되었으나 최근에는 의류에 직접 염색공정을 적용하는 기법으로 형광분산염료가 많은 용도에 적용된다. 이러한 고가시 산업용 work-wear는 주간에는 선명한 색상을 띄며, 야간에는 빛나는 재귀 반사의 성능을 지니며 대표적인 형광컬러는 Yellow, Red-Orange, Red, Yellow-Orange, Pink, Green, Yellow-Green 등 색상이 있다. 고가시성 안전의류(High Visibility Warning Clothing) 기준의 색도 좌표 및 일광 견뢰도 등 성능을 만족해야 하며, 대표적인 규격은 유럽의 EN-471로 일광, 마찰, 세탁, 땀, 드라이클리닝, 염소 등 견뢰도에 대한 각각의 합격기준이 있으며, 색도 및 형광팩터 등의 기준에 맞는 염색처방이 필요하다.