This study was conducted to examine the effect of relative humidity and air space in knitted
fabrics on heat transfer, by means of the Thermo Labo II type, measuring thermal conductivity (λ) thermal insulation value(TIV) and initial maximum heat flux(qmax) for ten kinds of knitted fabrics.The experimental results were analysed statistically to relate thermal properties to relative humidity, air space, moisture/air transport properties, and so on.
1. The TIV of knitted fabrics for underwear showed that the smaller the bulk density and the
thicker the air space, the better the thermal insulation, regardless of materials, an increase of about 150% was observed in TIV of about 8mm of air space.
1.下着の編地の断熱値(TIV)は、素材に関係なく、かさ密度が小さく空気スペースが厚いほど断熱性が良くなることがわかった。空気スペースの約8mmの断熱値(TIV)において150%の断熱性が向上が観測された。
1. 下着のニット布地のTIVは、容積の密度が小さく空間が厚いほど、材質に関係なく熱の絶縁が高くなった。8ミリほどの空間でのTIVは、150パーセントの増量がみられた。