• 한국의류학회지
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• 제30권2호
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• pp.296-305
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• 2006

This study evaluate the effect of laundering on the deformation of knitted spandex/cotton fabrics compared with that of knitted cotton fabrics. Commercial knitted spandex/cotton and knitted cotton fabrics for T-shits were laundered in a drum-type washing machine and dried in a tumble dryer. Wale spirality, shrinkage, elastic recovery and surface contour of knitted fabrics were investigated under different laundering conditions: washing temperature, presoaking time and washing cycles. Knitted spandex/cotton fabrics had a lower angle of spirality than knitted cotton fabrics. After the first washing cycle, the angles of spirality of all the fabrics had decreased greatly. Knitted cotton fabric of low density deformed more than that of higher density. Knitted spandex/cotton. fabric of low density shrank less, because of the greater extension given during heat-set. Permanent elongation length at the 80$\%$ extension was longer than at the 50$\%$ extension, and the knitted spandex/cotton fabric which was expanded greatly during heat-set had a lower elastic recovery rate. The surface appearance of the knitted spandex/cotton fabrics was worsl~ than that of the knitted cotton fabrics before laundering and after repeated laundering, because of the much protruded cotton fibers from the yarns.

• 한국의류산업학회지
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• 제20권1호
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• pp.93-100
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• 2018

This study comparatively analyzed the changes in the dimensional stability and the mechanical properties of stretch knit fabrics associated with washings conditions in order to determine the most appropriate washing method. Polyester and spandex knit fabrics were washed 25 cycles with nine washing condition profiles that controled detergent, hardness. temperature and RPM. The knit fabrics with repeated washings were evaluated by dimensional stability and measured by the KES-FB system. Polyester and spandex fibers have good chemical resistance. However, the changes in the dimensional stability and the mechanical properties were observed in washed knit fabrics. After repeated washings, the knit fabrics washed in an alkali or neutral detergent had good dimensional stability compared with the knit fabric washed in functional detergent. The washed knit fabrics were extended, stiff, rough, and had a smaller volume. The changes were the result of the rearrange of polyester fibers which twisted around spandex core and chemical interactions involving the detergent and the physical and mechanical forces of washing. Especially, using an alkali detergent resulted in increased stiffness and roughness of the knit fabric. In conclusion, the washing in water with low hardness and a neutral detergent can minimize the changes in dimensional stability and mechanical properties of polyester and spandex knit fabric.

• 한국의류학회지
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• 제26권10호
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• pp.1467-1477
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• 2002

This study was investigated physical properties of stretch fabrics by KES-FB system to show suitable basic data to making skirts of excellent capacity and develop more organized basic skirt pattern by fitness evaluation. 1. The results of T. H. V.(Total Hand Value) were as followa: In the kind of blending fiber, cotton/spandex was more excellent than nylon/spandex and polyester/spandex, in the direction of stretch, one-way(weft inserted polyurethan yarn) polyester/spandex and cotton/spandex were higher than two-way(warp and wet inserted polyurethan yarn) polyester/spandes and cotton/spandex, two-way nylon/spandex was higher than one-way nylon/spandex. 2. The results of calculating the variance between sample stretch fabrics and Japanese s/s women's suit fabrics after standardizing were as follows: Stretch fabrics has 2 range of tensile, bending, shearing, compression, surface, thickness and weight as compared with Jpanese s/s women's suit fabrics. In the tensile property, one-way stretch fabrics were almost the same with Japanese s/s women's suit fabrics, only two-way polyester/spandex had+1～+2 range. In the bending, shear property, there was no difference between sample fabrics and Japanese s/s women's suit fabrics 3. In the total fitness of the skirt, nylon/spandex is the best in the fabrics and one-way stretch fabric is better than two-way strethch fabric.

• 한국섬유공학회:학술대회논문집
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• 한국섬유공학회 2003년도 가을 학술발표회 논문집
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• pp.289-290
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• 2003

본 연구는 폴리에스터-나일론 파워 네트 원단의 건열특성을 다룬 것이다. 이 건열특성은 스판덱스(spandex)의 특성에 크게 영향을 받는다. 스판덱스는 통상 활용할 수 있는 신도가 500~600 %에 이른다는 성질 때문에 섬유제품에 많이 응용되고 있다 이는 탄성이 양호하여 스타킹용, 수영복용 등으로 많이 활용하고 있다. 또한 스판덱스는 마모와 마찰강도가 고무보다 우수하고 탄성이 아주 좋고 리 쓰인다. (중략)

• 한국의류학회지
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• 제41권6호
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• pp.1098-1108
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• 2017

This paper investigated stretchability with fabric mechanical properties of one-way and two-way stretch fabrics. For this purpose, 1-way and 2-way woven fabrics were prepared using 150d PET/spandex covered yarns with different thermal treatment according to 4 kinds of wet thermal machines subsequently, fabric mechanical properties were measured and compared with regular PET fabrics. In addition, the garment formability of stretch fabrics was predicted and compared to regular fabrics according to wet thermal treatment. The weft stretchability of 2-way stretch fabric was about 10% higher than the 1-way stretch fabric. The compressibility of the stretch fabrics was 1.5 times higher than regular fabrics. The compressibility of stretch fabrics treated with CPB and rope type wet thermal machine showed higher values than other types of wet thermal machines. The bending rigidity of 2-way stretch fabric was lower than 1-way stretch fabric. Shear rigidity of 2-way stretch fabric was higher than 1-way and regular fabrics. Garment formability of 2-way stretch fabric was higher than regular and one-way stretch fabrics. Garment formability of 2-way stretch fabrics treated with wet thermal conditions under low tension showed the highest values.

• 감성과학
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• 제26권4호
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• pp.41-50
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• 2023

본 연구는 EMG(electromyography) 텍스타일 전극 개발을 목적으로 레이어 수의 디자인 및 원단을 다르게 하여 성능 및 신호 획득 안정성을 평가한다. 레이징 및 프레스 공정을 통하여 텍스타일 전극을 제조하며 Layer-0, Layer-1, Layer-2로 레이어 유무 및 수에 따른 결과를 분석했다. 이에 레이어 유무에 따라서는 근활성 측정에 영향을, 수가 많을수록 높은 성능이 나타남을 확인할 수 있었다. Layer-2 구조로 통일하여 5가지의 원단(네오프렌, 스판덱스 쿠션, 폴리에스테르 100%, 나일론 스판덱스, 광목 캔버스)으로 전극을 제조해 실험해 보았다. 성능적인 면에서, 원단의 중량이 높은 나일론 스판덱스가 높은 성능을 보였으며, 스판쿠션 텍스타일 전극이 근활성도 수득에 높은 안정성을 보였다. 이에 위 연구는 레이어에 따른 성능 연관성과 전극-피부사이의 닿는 면적 간의 관계 등을 고찰하여 슬리브 전체의 의복압을 늘리는 대신 특정 센서 측정 부위에만 높은 압력을 가함으로 차후 연구에서 레이어의 수 및 물성에 따른 전극의 공학적 설계 가능성을 제시한 의의가 있다.

• 한국섬유공학회:학술대회논문집
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• 한국섬유공학회 2001년도 가을 학술발표회 논문집
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• pp.314-315
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• 2001

전기 전도성 고분자는 폴리 아세틸렌을 적절한 electron withdrawing group이나 electron donating group을 이용하여 도핑하면 전도도의 증가를 가져온다는 보고 이래로 활발하게 연구되어져 왔다. 그 중에서 폴리피롤은 높은 전도도와 산화안정성, 인체에 무해한 특성 때문에 여러 분야에 응용되고 있으며 분자전자장치나 고체 배터리의 전극, 축전기의 고체 전해질, 전자파 차폐 재료, ion센서, 위장막의 제조 등의 용도전개 잠재력이 무궁하다. (중략)

• 한국의류학회지
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• 제41권3호
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• pp.458-467
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• 2017

There is increased interest in clothes dryers and garments made of spandex-blend woven fabrics; however, there is limited information available for the laundering and drying these clothes. This study investigates the effects of washing and drying on shrinkage, skewness, and wrinkle for woven fabrics with and without spandex. When spandex with good elastic recovery was blended, the deformed shape from washing and drying improved skewness and wrinkle by easily returning to its original shape. However, these properties had a negative effect on shrinkage in terms of length and area change. When the influence of clothes maintenance was classified, the drying process had the biggest influence of 58%, followed by spinning-rinsingwashing. Tumble drying, in which the fabric is exposed to mechanical force and heat for a long period, had more negative effects on the dimensional stability than line drying. The spandex blend had the effect of preventing skewness and wrinkle in garments, but it was also shown to accelerate shrinkage by garment maintenance cycles. It was important to control drying in order to reduce shrinkage during the maintenance process; consequently, this had the greatest influence on the dimensional stability of fabrics. Therefore, line drying was more advantageous for spandex-blend fabrics than tumble drying in terms of management for shrinkage, skewness, and wrinkle.

• Fibers and Polymers
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• 제7권1호
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• pp.51-56
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• 2006

Power net fabric is one of the highly extensible two-way fabrics. Power net structure shows special characteristics in the wearing of final functional clothes. This research evaluated effects of treatment temperature on proportional extensibility and shrinkage ratio of spandex at a given wale length. As treatment temperature increased, extensibility increased proportionally to the standard length of the sample and the shrinkage ratio in the direction of course and wale increased. The pulling-out length increased proportionally to the standard length of the sample. However it was affected by the effect of treatment time and temperature due to the thermal properties of spandex filament yarn.

• 한국의류학회지
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• 제29권12호
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• pp.1619-1626
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• 2005

탄성직물의 내구성은 탄성직물에 포함된 스판덱스사의 성질변화가 큰 영향을 미친다. 그러므로 본 연구에서는 세탁조건이 스판덱스사의 길이, 강도와 신도, $300\%$신장 후의 영구탄성 변화에 미치는 영향을 조사하였다. 시료로는 굵기가 다른 스판덱스사와 heat-set 시 신장률이 다른 편성물을 가정용 드림세탁기에서 세탁온도, 세탁 전 침지시간과 세탁휫수를 달리하여 세탁한 후, 편성물로부터 스판덱스사를 분리하여 기계적 성질을 측정하였다 스판덱스사의 길이는 세탁온도가 높아지거나, $40\%$에서 세탁휫수가 증가하면 계속 감소하였으나 세탁 전 침지시간에 따른 영향은 비교적 적었다 섬유가 가늘수록 길이 수축률이 크며 세척 조건변화에 따른 수축률이 크게 증가하였다. 스판덱스사의 강도와 신도는 반복 세척 시의 감소가 뚜렷하였으며, heat-set 시에는 강도와 신도도 크게 감소하였고, heat-set 시에 가해준 신장률이 클수록 감소가 더 컸다. 한편 스판덱스사의 영구변형률은 세탁온도가 높으며, 침지시간이 길고, 세탁횟수가 많을 때 현저히 높았다. 대체적으로 굵은 스판덱스사의 영구변형률이 크며, 140D는 30회 세척 후에 $28.0\%$의 영구변형 이 일어났다. Heat-set로 스판덱스사의 영구변형은 늘어나며, heat-set 시에 신장률이 큰 스판덱스사의 영구변형이 더 많았다. DSC 열분석 곡선에서 스판덱스 섬유는 반복 세탁과 heat-set여부와 관계없이 동일한 융해온도를 나타내었으며, 이로부터 스판덱스 섬유의 hard segment분자쇄 길이는 세탁 또는 heat-set후에도 변화가 없는 것으로 보여진다.