Research On Clothing Thermal And Moisture Comfort Based On Sweating Fabric Thermal Manikin

With the improvement of life quality, people not only require the appearance of clothing,but also the clothing comfort when they choose clothing. For example, clothing requires warmfunction as well as lighter and thinner, or protective function under harsh climate. Based onsweating fabric thermal manikin "Walter", the thermal and moisture comfort of winter warmwear, membrane compound jackets and vests incorporated with phase change materials (PCM)are studied in this paper.Firstly, in the ambient condition of temperature at10℃2℃and relative humidity at50%8%, based on sweating fabric thermal manikin "Walter", thermal and moisture comfortof nine winter warm wear filled with different materials was measured. The result showed thatwarm wear filled with down has better warmth retention property than those filled with hollowfiber, while warm wear filled with down has good moisture permeability property. The warmthretention property and moisture permeability property of the warm wear varies among the hollowfibers with the different structure. The impermeability index of warm wear filled with the hollowfiber, which has porous in cross section and groove in longitudinal section, is highest. It not onlyhas similar warmth retention property to down coat, but also has better moisture permeabilityproperty. With the increase of the weight of filling material, the warm wear has higher thermalinsulation and better moisture permeability, but the increasing rate of thermal insulation isdifferent among the filling materials. The thermal insulation of warm wear filled with the hollowfiber, which has porous in cross section and groove in longitudinal section, has lower increasingrate. That is to say, this kind of warm wear with light weight filling has better warmth retentionproperty.Secondly, based on sweating fabric thermal manikin "Walter", thermal and moisturecomfort of two advanced membrane compound jackets was studied under two ambientconditions of temperature at10℃2℃, relative humidity at50%±8%, and temperature at 5℃2℃, relative humidity at65%±8%in this paper.. The experimental result revealed thatjacket which coated with PU has higher thermal insulation, lower moisture resistance and higherimpermeability index than jacket which coated with sputtering metal in the same ambientconditions. In the same dressing conditions, the higher ambient temperature, the higher thermalinsulation, lower moisture resistance and higher impermeability index the jacket has.Thirdly, in the ambient condition of temperature at10℃2℃and relative humidity at65%8%, based on sweating fabric thermal manikin "Walter", thermal and moisture comfortof vests incorporated with three different phase change materials was studied in this paper. Theexperimental result indicated that traditional evaluation thermal insulation index do notadequately reflect the influence of PCM on thermal and moisture comfort of clothing correctly,because there are so many factors affecting the thermal insulation of vests incorporated withPCM. With incorporated with phase change material, the moisture resistance of clothing increase,while the thermal insulation vary considerably during60minutes, but the average of thermalinsulation change little. The temperature of four sensors on the torso of thermal manikin changea lot, and obviously the average torso temperature increase. The highest torso temperature, thetime reached the highest temperature and the torso temperature after stabilization all depend onthe phase change temperature of PCM.