Effects of fabric air permeability, open apertures and fit on clothing ventilation in some body regions during light work

轻度工作期间织物透气性、开孔和合身性对某些身体区域服装通风的影响

基本信息

批准号：
16500498
负责人：
UEDA Hiroyuki
金额：
$ 2.05万
依托单位：
Osaka Shin-Ai College
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (C)
财政年份：
2004
资助国家：
日本
起止时间：
2004 至 2005
项目状态：
已结题

项目摘要

Wearer comfort decreases when the humidity in the clothing microclimate increases. Our research demonstrated an inverse relationship between the ventilation rate of the clothing microclimate and its vapor concentration for various sweat rates, demonstrating the importance of ventilation through fabrics and apertures of the clothing in order to keep the wearer comfortable.Furthermore, the air exchange rate was measured in some body regions using a trial measuring system, and the effects of fabric air permeability, open apertures and fit (tight/loose) of clothes on clothing ventilation were examined under four conditions : standing and walking, with and without air movement. The results indicated that clothing ventilation is modified by wind and body movement and that clothing ventilation was increased in the back, upper arms and legs region by the improvement of fabric air permeability, in the upper and lower limbs by a loose fit, and in the trunk and upper limbs region by openings at neck, skirt, and wrist cuffs.An evaluation method was proposed for the design of clothes with efficient ventilation, which uses the calculation of "required ventilation" : the ideal amount of ventilation by which all sweat produced in a certain body region could be removed from the skin to the outside of the clothes, hence keeping skin humidity low and maintaining comfort. For this purpose knowledge of regional sweat rates in different work situations is required, which is impractical to determine. Therefore we deduced equations describing regional sweat rate as fraction of whole body sweat rate from a series of results of 30-minute exercise tests. The regional sweat rate for calculating required ventilation can easily be obtained by means of these formulas when the total sweat rate is estimated according to overall weight loss during exercise.

服装小气候的湿度增加时，佩戴者的舒适性会降低。我们的研究表明，服装微气候的通风速率与各种汗液的蒸气浓度之间存在反比关系，证明了通过织物和衣服的通风的重要性，以使佩戴者保持舒适，以保持佩戴者的舒适性。在四个条件下检查了通风：站立和步行，有和没有空气移动。结果表明，服装通风是通过风能和身体运动来改变的，并且通过改善织物空气通透性，上肢和下肢，在颈部和下肢区域中，通过改善织物的空气渗透性，在脖子，裙子，裙子，裙子和腕式评估方法中，在上肢和上肢区域中增加了衣服通风，在上肢和下肢中增加了。可以从皮肤到衣服外部去除某个体内所有汗液的理想通风量，从而使皮肤湿度保持较低并保持舒适度。为此，需要在不同的工作情况下进行区域汗水率的知识，这是不切实际的。因此，我们推导了将区域汗水描述为从30分钟运动测试的一系列结果中描述区域汗液率的一部分。当根据运动过程中的总体体重减轻估算总汗液时，可以通过这些公式可以轻松获得计算所需通风的区域汗水速率。