Fashion & Textile Research Journal (한국의류산업학회지)

The Society of Fashion and Textile Industry (한국의류산업학회)
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Effects of Relative Humidity and Fiber Properties on the Moisture Permeability of Multilayer Fabric Systems

환경 및 섬유 특성이 멀티레이어 직물시스템의 투습성에 미치는 영향

  • Suhyun Lee (Dept. of Fashion Design, Jeonbok National University) ;
  • Sohyun Park (Division of Human Ecology, Korea National Open Uvniversity)
  • 이수현 (전북대학교 의류학과) ;
  • 박소현 (한국방송통신대학교 생활과학부)
  • Received : 2023.01.20
  • Accepted : 2023.02.13
  • Published : 2023.02.28
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Abstract

This study aimed to determine the effects of relative humidity and fiber properties on the moisture permeability of multilayer systems by measuring water vapor transmission in the overlapping condition of various fabrics. The results confirmed that the property of the fabric in contact with the humid environment affects the moisture permeability. If the layer facing the humid environment is hydrophobic and the layer facing the dry environment is superhydrophobic, water vapor transmission increases by up to 17.8% compared to the opposite conditions. Comparing the correction values of the water vapor transmission reflecting the thickness of the specimen under the multilayer condition showed that permeability was higher when the hydrophilic or hydrophobic layer was facing the humid environment. The opposite was true from the "push-pull" effect of absorption mechanism. In the case of moisture permeability, the more hydrophilic the surface facing the humid environment, the more permeable that water vapor diffuses and passes through. It was concluded that the "pull-push" effect, in which water vapor diffuses widely through the hydrophilic facing a humid environment and then passes through the hydrophobic layer, contributes to the improvement of permeability. Permeability differed according to the multilayer overlapping condition. When the relative humidity was high, the "pull-push" effect was insignificant. This is caused by water droplets absorption after the partial migration of water due to condensation. These results suggest that the overlapping conditions and properties of fabrics should vary depending on heavy sweating or not.

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