布の接触冷温感測度としての初期熱流束最大値 (q_max) について

被服材料の熱伝導持性に関する基礎的研究 (第3報)

抄録

In this study, in the first place, the validity of the initial maximum value of heat flux, q_max, as an objective measure of warm/cool feeling when human skin touches on fabrics is confirmed by sensory test. Nextly, relations between q_max and basic mechanical properties for many kinds of fabrics of six uses are examined. As a result, fairly high correlations between q_max and thickness, weight, compressive properties are obtained.
Experiments to obtain q_max are carried out for various fabrics which differ in type of fiber, yarn structure and fabric structure under standard condition and wet condition. From the results of fabrics which have almost the same fabric construction and vary in fiber material, it is found that the behaviours of moisture regain vs. q_max are divided into three groups. It is remarkable that q_max of linen is higher and that of wool is lower. The warm feeling of wool and the cool feeling of linen can be explained from these results. However, the dependence of the behaviour of q_max of wet fabrics on fabric and yarn structures is not so strong as in the case of thermal conductivity reported in the previous paper.