Impact of Fiber Cross-Section Geometry on Thermal Comfort Characteristics of Knitted Fabrics
Aachen-Dresden-Denkendorf International Textile Conference 2025, Aachen, Almanya, 27 - 28 Kasım 2025, ss.12, (Tam Metin Bildiri)
- Yayın Türü: Bildiri / Tam Metin Bildiri
- Basıldığı Şehir: Aachen
- Basıldığı Ülke: Almanya
- Sayfa Sayıları: ss.12
- Açık Arşiv Koleksiyonu: AVESİS Açık Erişim Koleksiyonu
- Marmara Üniversitesi Adresli: Evet
Özet
In this study, the thermal comfort performances of double-layer knitted fabrics made of polyester with varying yarn structures and cross-sectional geometries were comparatively evaluated. A total of six fabric samples were investigated. These fabrics
were produced using FDY (Fully Drawn Yarn) and air-jet textured yarns, and the yarn cross-sections were categorized into three types: oval (round), G-shaped, and W- shaped. The primary objective of this study was to determine the effects of these structural differences on key thermal comfort parameters, specifically thermal resistance (heat retention capacity) and water vapor resistance (breathability). Accordingly, the thermal resistance of the fabrics was measured using a togmeter device. The TOG value is a critical indicator that reflects a textile material’s ability to retain body heat and insulate against external environmental conditions. Additionally, the water vapor resistance of the fabrics was assessed to evaluate the extent to which perspiration vapor could pass through the fabric surface, thereby determining the moisture management capacity of the samples. These parameters provide insight into the performance potential of the fabrics, particularly for applications in winter clothing, sportswear, and technical textiles. The findings revealed that yarn type and cross-sectional shape significantly influence both thermal resistance and breathability characteristics of the knitted fabrics. Structural variations were found to play a key role in optimizing fabric performance in terms of wearer comfort. This study highlights the importance of considering structural parameters in the design and development of fabrics aimed at enhancing thermal comfort in end-use applications.