2024 Volume 75 Issue 8 Pages 403-415
In this study, three types of 36 GG bare jersey were knitted to achieve the same basis weight as closely as possible, and four types of underwear samples with varying moisture absorbency and waviness index Wa, indicating the unevenness of the knitted fabric on the skin side and the outer surface, were produced.
Young men conducted hearing evaluations and measurements of the garment’s internal environment in a hot environment (Environment I) and a thermo-neutral environment (Environment II). The relationship between the results of the wearing test and the sample characteristics is discussed and summarized below as a guideline for the design of desirable knitted fabrics for summer undershirts.
1) Based on the results of the wearing evaluation, the sensation of wearing the undershirt was summarized into two factors: Skin contact factor and Thermal factor.
We found that the Skin contact factor and the Thermal factor contributed to the overall rating in Environment I, and the Skin contact factor in Environment II. In addition, the ability to discriminate skin contact was observed to be easier in Environment II than in Environment I.
2) For comfort in wearing summer undershirts, both skin contact and heat-moisture transfer must be considered.
To improve skin contact, reducing the waviness index Wa, which indicates surface unevenness, is desirable. For better heat and moisture transfer, increasing air permeability is desirable.
