INVESTIGATION OF THE EFFECT OF APPAREL FABRICS STRUCTURE ON AIR PERMEABILITY AND THERMAL COMFORT PROPERTIES

Fabric structure has a major effect on air permeability and thermal comfort properties of apparel fabrics. Air permeability and thermal comfort properties of apparel depend on fabric structural properties such as weave type, fabric thickness, weight, yarn density and cover factor. Thermal conductivity, thermal diffusivity, thermal absorptivity, thermal resistance and air permeability should be measured to test thermal comfort properties of fabrics.The purpose of this study is to investigate the effect of the apparel fabrics structure on air permeability and thermal comfort properties. For this reason, air permeability and thermal comfort properties of viscose / polyester blended woven fabrics of different structures which are widely used in apparel have been examined. According to the results, a negative correlation was observed between weight, thickness, cover factor and air permeability of the fabrics. A positive correlation was observed between weight, thickness, cover factor and thermal conductivity of the fabric samples. A positive correlation was observed between weight, cover factor and thermal absorptivity of the fabric samples. Also positive correlations were observed between thickness- thermal resistance and thickness- thermal diffusivity of the fabric samples.

Giysilik Kumaşların Yapısının Hava Geçirgenliği ve Termal Konfor Özellikleri Üzerine Etkisinin İncelenmesi

Kumaş yapısı, giysilik kumaşların hava geçirgenliği ve termal konfor özellikleri üzerinde önemli etkiye sahiptir. Hava geçirgenliği ve termal konfor özellikleri örgü tipi, kumaş kalınlığı, gramaj, sıklık ve örtme faktörü gibi kumaş yapısal özelliklerine bağlıdır. Termal iletkenlik, termal yayılma, termal absorptivite, termal direnç ve hava geçirgenliği kumaşların termal konfor özelliklerini test etmek için ölçülmelidir. Bu çalışmanın amacı, giysilik kumaşların yapısının hava geçirgenliği ve termal konfor özellikleri üzerine etkisini incelemektir. Bu sebeple, giysilerde çok kullanılan farklı yapılardaki viskon/polyester karışımlı dokuma kumaşların hava geçirgenliği ve termal konfor özellikleri incelenmiştir. Sonuçlara göre, kumaşların gramaj, kalınlık, örtme faktörü ile hava geçirgenlik değerleri arasında negatif korelasyon elde edilmiştir. Kumaşların gramaj, kalınlık, örtme faktörü ve termal iletkenlik değerleri arasında pozitif korelasyon bulunmaktadır. Kumaşların gramaj, örtme faktörü ve termal yayılma değerleri arasında pozitif korelasyon bulunmaktadır. Aynı zamanda, kumaşların kalınlık ile termal absorptivite ve termal direnç değerleri arasında da pozitif korelasyon bulunmaktadır.

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