Skin models are used for determination of water and thermal resistance of fabrics. Measurement in these instruments starts with determination of water vapour resistance of a boundary layer above the sweating hotplate. In the second step, the hotplate is covered by the tested fabrics and the instrument measures WV resistance of the fabric and that of boundary layer. Afterwards, the difference between these measurements presents the required WV resistance of the measured fabric, provided that WV resistance of the boundary layer is in both measurements identical. However, fabric surface roughness may change WV resistance of the boundary layer in the second measurement. In the paper, the effect of the fabric surface on measurement precision is theoretically analyzed and experimentally verified by procedure, which provides same air surface friction during both steps of the measurement. Experiments confirmed certain but small effect of the fabric surface roughness on the measurement precision.
water vapour resistance textile fabric skin model measurement precision surface roughness
Technical University of Liberec
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Birincil Dil | İngilizce |
---|---|
Konular | Giyilebilir Malzemeler |
Bölüm | Makaleler |
Yazarlar | |
Proje Numarası | None |
Yayımlanma Tarihi | 30 Eylül 2021 |
Gönderilme Tarihi | 3 Ocak 2021 |
Kabul Tarihi | 1 Eylül 2021 |
Yayımlandığı Sayı | Yıl 2021 Cilt: 31 Sayı: 3 |