Thermo-physiological Comfort Assessment of Bi-layer Knitted Structures 


Vol. 27,  No. 3, pp. 1559-1567, Mar.  2026
10.1007/s12221-025-01297-1


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  Abstract

This study investigates the thermo-physiological comfort behavior of bi-layer knitted fabrics composed of bamboo viscose, micro-polyester, and spun polyester yarns arranged in varied face–back layer configurations. Six bi-layer samples were developed and evaluated for air permeability, water vapor permeability (Ret), thermal conductivity, and thermal resistivity using standard instruments, such as Alambeta and Permetest. The results revealed that fiber composition and layer orientation significantly influence heat and moisture transfer characteristics. Fabrics with bamboo as the outer layer and micro-polyester as the inner layer exhibited optimal comfort performance, demonstrating low thermal conductivity, high thermal resistivity, and excellent moisture vapor permeability. Micro-polyester layers enhanced breathability, while bamboo fibers contributed to insulation and moisture management. The findings highlight the importance of selecting appropriate fiber combinations and structural configurations for designing high-performance sportswear that maintains thermal balance and comfort under varying physiological and environmental conditions.

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  Cite this article

[IEEE Style]

C. Hemachalaeswari and S. K. S. Kumar, "Thermo-physiological Comfort Assessment of Bi-layer Knitted Structures," Fibers and Polymers, vol. 27, no. 3, pp. 1559-1567, 2026. DOI: 10.1007/s12221-025-01297-1.

[ACM Style]

C. Hemachalaeswari and S. Kubera Sampath Kumar. 2026. Thermo-physiological Comfort Assessment of Bi-layer Knitted Structures. Fibers and Polymers, 27, 3, (2026), 1559-1567. DOI: 10.1007/s12221-025-01297-1.

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