男士针织内衣热性能的测量与分析

Measurement and analysis on thermal properties of men's knitted underwears

为探明服装内空气层体积对男士针织内衣热性能的影响,并比较发热内衣与普通纯棉内衣热性能的差异,使用站立式暖体出汗假人分别对男士发热内衣及纯棉内衣的热阻与湿阻进行了测量,分别建立了2种内衣的空气体积与热阻和湿阻之间的多项回归模型。结果表明:在所测内衣尺码范围内,发热内衣的热阻和湿阻均逐渐增大,但二者的增加率均先增大后减小;而普通纯棉针织内衣的热阻和湿阻则先增大,达到一定值后逐渐减小;通过比较发现普通纯棉针织内衣的热阻和湿阻均高于相应尺码的发热内衣,但其透湿指数则小于相应尺码的发热内衣,说明发热内衣的热舒适性优于普通纯棉针织内衣。

To research influence of air volume under clothing on thermal properties of men＇s underwear,a standing sweating fabric manikin was used to measure the thermal insulation and the evaporative resistance of body heat underwear and regular cotton underwear,and the thermal comforts of the both were compared. Two polynomial regression equations were established separately to predict the thermal insulation and the evaporative resistance from air gap volumes. The results proved that the thermal insulation and the evaporative resistance of the body heat underwear gradually increase with the underwear size within the measurement range,but the increase rates of the both increase first and then decrease,while the thermal insulation and the evaporative resistance of the regular underwear increases first and then decrease when reaching a certain value. Further study shows the thermal insulation and the evaporative resistance of regular underwear is higher than those of the body heat underwear of the same size,but the moisture permeability index of the regular underwear is smaller than that of the body heat underwear,which shows the thermal comfort of the body heat underwear is better.