1991 Volume 42 Issue 7 Pages 635-641
The purpose of this paper is to make clear the effects of multiple layers of clothing on thermal and water transport properties through wearing systems in a cold environment. The simulation tests by using THERMO LABO II were conducted under conditions approximating actual clothing usage. The wearing tests were also conducted using three female subjects.
The results are summarized as follows :
(1) The differences of thermal transport properties among different types of underwear did not play an important role in the total thermal transport properties of the wearing systems.
(2) The humidity within the clothing of the combinations of hydrophilic sweater/hydrophilic underwear was lower than that of the combinations of hydrophobic sweater/hydrophobic underwear.
(3) The wicking properties of the underwear had a considerable effect on the thermal and water transport property through the wearing systems.
(4) In the wearing tests, acrylic underwear, specially the combination of acrylic sweater, showed an earlier and steeper rise of humidity within the clothing during exercise, and a larger fall of temperature within the clothing and skin temperature after sweating.
(5) Cotton underwear also showed a larger fall of temperature within the clothing and skin temperature after sweating.
