摘要
The water vapour resistance of clothing ensembles is not as commonly determined as dry thermal insulation. The measurement techniques are more complicated and the measurement values differ among laboratories. Due to complicated moisture transfer process through clothing ensemble, the moisture absorbed and evaporated varies in transient and steady state phases depending on properties, thickness of clothing, and environmental conditions. The purpose of this study was to measure moisture gain inside hygroscopic underwear, and hydrophobic and permeable outer wear as a function of time, to investigate mass loss from ＂skin＂ as well as from the manikin, to quantify evaporative heat loss and total heat loss from the manikin, and to determine water vaponr resistance of clothing. Manikin Tore was used by wearing wet ＂skin＂ to simulate sweating condition. Moisture content in the inner garment gain shows an exponential relation against time. Moisture in the outer permeable layer shows little gain. On the contrary, mass loss directly from the wet skin decreases exponentially. The mass loss from the manikin is relatively stable throughout three test phases. The evaporative heat loss is about 2/3 of the total heat loss from the sweating manikin. While measuring the evaporative resistance of clothing ensembles with hygroscopic inner garment and permeable outer garment, unlike to measure ensembles with impermeable outer layer, one hour measurement time is enough to get relatively stable results. The variation between the 1^rt hour and the 3^nd hour is less than 5%. The length of transient period and measurement time is dependent on the permeability, thickness of clothing ensembles and environmental conditions.
衣服整体的水蒸汽抵抗不是当通常作为干燥热屏蔽决定了。测量技术是更复杂的，测量价值在实验室之中不同。由于通过衣服整体的复杂潮湿转移过程，吸收并且蒸发的潮湿在取决于性质，衣服的厚度，和环境条件的短暂、稳定的州的阶段变化。这研究的 purpse 是在吸湿性的内衣内测量潮湿获得，并且恐水病、可渗透外部作为时间的功能穿，从“皮肤”以及从矮人调查集体损失，成为蒸气的热损失和总数从矮人加热损失确定，并且撕了决定 clothing.Manikin 的水蒸汽抵抗被穿湿“皮肤”模仿出汗的状况使用。在内部服装获得的潮湿内容对时间显示出一种指数的关系。在外部可渗透的层的潮湿显示出小获得。相反，集体损失直接指数地从湿皮肤减少。从矮人的集体损失在整个三个测试阶段是相对稳定的。成为蒸气的热损失关于从出汗的矮人的全部的热损失的 2/3。当与吸湿性的内部服装和可渗透的外部服装测量衣服整体的成为蒸气的抵抗时，对有透不过的外部层的措施整体不同，一小时测量时间是足够的得到相对稳定的结果。在第一小时和第三个小时之间的变化是不到 5% 。短暂时期和测量时间的长度依赖于渗透，衣服整体的厚度和环境条件。
