The Influence of Knitted Fabrics’ Structure on the Thermal and Moisture Management Properties

TLDR

The study aims to identify the most suitable knitted fabric for summer and winter sportswear by evaluating how Coolmax® and Outlast® yarns’ structure influences thermal and moisture management. Researchers examined knitted fabrics made from Coolmax® and Outlast® yarns, assessing how raw material type and structural parameters affect thermal resistance, conductivity, absorptivity, and vapor permeability. Results indicate that both raw material and structure affect thermal and moisture properties, with wicking dominated by structure, drying by material; Outlast® fabrics are preferable for warm climates due to lower thermal resistance and higher permeability, while Coolmax® structures excel in cold weather, guiding tailored sportswear design.

Abstract

This paper studies the influence of fabric's structure on the thermal and moisture management properties of knitted fabrics made of two types of yarns with thermo-regulating effect: Coolmax® and Outlast®. The main purpose of this study was the selection of the most adequate fabric, to be used in summer and winter sportswear. The results demonstrated that some properties, such as, thermal properties, diffusion ability, air and water vapor permeability are influenced by both raw material type and knitted structure parameters. Wicking ability is influenced to a greater extent by the knitted structure, while the drying ability is primarily determined by raw material and to a lesser extent by the knitted structure parameters. Outlast® fabrics are preferred candidates for warmer climate sportswear, particularly due to their lower thermal resistance, higher thermal conductivity and absorptivity, air and water vapor permeability. When considering sportswear for colder weather, Coolmax® based structures seem to be the best choice. These findings are an important tool in the design of a sportswear product tailored to the different body areas thermal and moisture management requirements.