Incorporating Variable Porosity into the Determination of Effective Permeability in Interchanging Double Cloth Woven
Ana Kalazić1, Tea Badrov1, Ivana Schwarz1
1Department of Textile Design and Management, Faculty of Textile Technology Zagreb, University of Zagreb, Prilaz baruna Filipovića 28a, 10000 Zagreb, Croatia.
Abstract:
Woven fabrics are widely used for thermal protection due to their porosity, which provides thermal insulation and breathability. This research focuses on investigating the influential parameters in the thermal protective properties of layer interchanging double cloth, including the woven structure and varying yarn fineness. The properties affecting the protective properties and comfort of multilayered woven fabrics include the fabric thickness, fabric porosity, and air permeability. Darcy's law is applicable for determining the effective air permeability of woven fabrics. By understanding and controlling fabric porosity, it becomes possible to develop thermal protective clothing that combines improved comfort, cost-efficiency, and effectiveness. This study represents a novel approach for the clarification of airflow permeability behavior in complex structures of elastic multilayer woven fabrics using Darcy's law. This innovative approach expands the understanding of permeability in fabrics beyond single-layer fabrics with vertical pores or 3D fabrics used in resin injection processes.
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