• Fashion & Textile Research Journal
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• v.10 no.6
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• pp.1058-1063
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• 2008

The use of clothes dryers is increasing in Korea and throughout Asia, because of preference for the drum type washer dryer. Clothes dryers consume more energy than almost any other home appliance. This paper suggests efficient ways for drying laundry with condensing clothes drier. We dried cotton fabrics with the condensing clothes dryers and observed the energy input, temperature and RH of the dryer during the drying process. In the early stages of drying process, the air temperature inside the clothes dryer decreased and the RH and the drying time increased as the weight of fabrics increased. We found that it was important to consider the total weight of the fabrics that included heat-sensitive fibers. It took more than half the drying time and the energy input for a 2.5 kg load that it did for a 5 kg load. Therefore, drying larger one load was more efficient than divided smaller loads, because increasing the weight of the fabrics reduced the energy input per kg of drying clothes. The lower the initial moisture regains of the fabrics were, the lower the energy input and the drying time were. The energy input for spinning after washing was much less than that for drying in the dryer. Consequently, it is more efficient to reduce the moisture content of the clothes by lengthening the spinning time of the washer to reduce the energy consumption and the drying time. During the drying process opening the door twice for 30 seconds each time lowered the air temperature and the RH of the dryer, but did not affect the moisture regain of the fabrics, the drying time, and the energy input.

• Vending industry
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• v.7 no.1 s.19
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• pp.82-85
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• 2007

흔히 사람이 살아가면서 없어선 안 될 요소로 의식주를 손꼽곤 한다. 그런데 이 3가지 요소 중에서 의류가 맨 앞에 포진함은 의미심장하다. 먹고 자는 행위보다 입는 행위가 더 중요해서 일까. 아마 잠시라도 사람의 곁을 떠나지 않으면 안 되는 필수적인 요소이기 때문에 의류를 제일 앞에 포진시킨 것이 아닐 까 한다. 사실 인간이 옷을 입지 않고 존재하는 시간은 얼마 되지 않는다. 은밀한 사적인 공간에서 아니면 인간은 입어야 하는 게 숙명이다. 반면 삶에 있어 반드시 필요한 입는 행위의 이면에는 빠는 행위, 즉 세탁의 행위가 숙명처럼 존재한다. 한번 입고 옷을 버리지 않은 이상 세탁은 삶에 있어 필수 불가결한 요소이다. 이러한 행위를 가장 편하게 만드는 이기가 세탁기이다. 세탁은 가정에서 하는 게 일반적이기만 상업용 세탁용 시장도 존재한다. 돈 주고 세탁을 맡기는 세탁소가 대표적인 업종이다. 그런데 최근 상업용 세탁 시장의 틈새시장으로 셀프 빨래방이 확대되고 있다. 셀프 빨래방은 말 그대도 소비자가 혼자 세탁기 및 건조기를 이용해 세탁을 하는 업태이다. 셀프세탁 문화의 확대가 전제되어야 하는 이 신업태가 과연 얼마만큼의 시장 파급력을 형성할 수 있을 까. 이 신업태의 중심에 있는 코인업사는 셀프 빨래방의 급속 확산과 성공을 자신하고 있다. 무인매장으로 24시간, 365일 운영을 할 수 있다는 사업 본연의 장점에다 최근 매장 경쟁력을 강화할 야심에 찬 제품군까지 준비했다. 바야흐로 셀프 빨래방의 전성시대를 열어가려하는 코인업의 신사업 추진 현황을 따라가 봤다.

• Journal of the Korea Fashion and Costume Design Association
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• v.24 no.2
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• pp.1-10
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• 2022

The purpose of this study is to analyze the structural properties of 100% wool fabrics knitted with various stitch types and to evaluate dimensional stability from shrinkage in wet cleaning and drying. Materials were weft-knitted from twenty-four different stitches with 7 gauge using a computerized flatbed knitting machine. Weight, thickness, density, and length were measured. A domestic washing machine and a tumble dryer were used for the shrinkage test. The results are as follows: Knitted fabrics were divided into 3 groups based on weight per unit area. Porous knits show light weight whilst milano, pintuck, rib stitches belong to the heaviest group. A positive correlation between weight and thickness was found and the same result was obtained for wale density and weight. Dimensional shrinkage of knitted fabrics was increased during repetitive wet cleaning and drying regardless of knit stitches. Especially, fabrics knitted with float, tuck, cable, and links & links stitches samples were contracted more than 15% in the first treatment whereas 2x1 rib stitch showed 1% shrinkage rate. Fisherman and milano stitches contracted in both course and wale direction with similar shrinkage rates. However, porous knits with float and tuck stitches shrank in course direction by 20% as well as cable samples contracted from 5% to 20% after repeated washing and drying. On the other hand, 30% and 15% contraction of wale direction occurred in orderly float and links & links stitches, respectively. Machine dried knits have a higher shrinkage rate than air-dried knits, but the drying method did not affect to the direction of contraction. In conclusion, variations of knit, tuck, and float stitches affect knit construction and dimensional stability from shrinkage in wet cleaning and drying of wool knitted fabrics.