Evaluation of the Wear Comfort of Outdoorwear by Skin Wettedness Analyses

Skin Wettedness 분석을 통한 아웃도어웨어의 착용 쾌적성 평가

  • Jeong, Jeong-Rim (Dept. of Clothing & Textiles, Kyungpook National University) ;
  • Kim, Hee-Eun (Dept. of Clothing & Textiles, Kyungpook National University, Center for Beautiful Aging, Kyungpook National University)
  • 정정림 (경북대학교 의류학과) ;
  • 김희은 (경북대학교 의류학과 경북대학교 장수생활과학연구소)
  • Received : 2009.07.21
  • Accepted : 2009.10.15
  • Published : 2009.12.31

Abstract

The purpose of this study is to analyze skin wettedness($w$) used as the rate index of thermal comfort, and to evaluate the wear comfort of outdoorwear. Skin wettedness is widely used to express the degree of thermal comfort. If skin wettedness exceeds a certain threshold, the body feels damp and discomfort. An experiment which consisted of rest(30 min), exercise(30 min) and recovery(20 min) periods was administered in a climate chamber with 10 healthy male participants. Two kinds of outdoorwears made of 100% cotton fabrics (Control) and specially engineered fabrics having feature of quick sweat absorbency and high speed drying fabric (Functional) were evaluated in the experiment. The condition of climate chamber was controlled according to the thermal insulation of 4 kinds of experimental ensembles(E1~E4). Total sweat loss, sweat loss absorbed into clothing and skin temperature were measured. Skin wettedness was calculated from the ratio of evaporative rate to the maximal evaporative capacity. Skin wettedness of 'Functional' was lower than 'Control' in the 3 kinds of ensembles(E1, E2, E4) because the materials of 'Functional' were composed of quick sweat absorbency and high speed drying fabrics, water vapour permeability and waterproof fabrics.

Keywords

References

  1. Amorim, F. T., Vimieiro-Gomes, A. C., Machado-Moreira, C. A., Magalhaes, F. C., Rosa, M. S., Prado, L. S., & Rodrigues, L. O. C. (2006). Is sweat rate during steady state exercise related to maximum oxygen uptake?. Journal of Thermal Biology, 31(6), 521-525 https://doi.org/10.1016/j.jtherbio.2006.05.006
  2. Atmaca, I., & Yigit, A. (2006). Predicting the effect of relative humidity on skin temperature and skin wettedness. Journal of Thermal Biology, 31(5), 442-452 https://doi.org/10.1016/j.jtherbio.2006.03.003
  3. Bouskill, L. M., Havenith, G., Kuklane, K., Parsons, K. C., & Withey, W. R. (2002). Relationship between clothing ventilation and thermal insulation. AIHA Journal, 63(3), 262-268 https://doi.org/10.1080/15428110208984712
  4. Candas, V., Libert, J. P., & Vogt, J. J. (1979). Human skin wettedness and evaporative efficiency of sweating. Journal of Applied Physiology, 46(3), 522-528
  5. Dubois, D., & Dubois, E. F (1916). A formula to estimate the approximate Surface area if height and weight be known. Archives of International Medicine, 17, 863-871
  6. Fukazawa, T., Lee, G., Matsuoka, T., Kano, K., & Tochihara, Y. (2004). Heat and water vapour transfer of protective clothing systems in a cold environment, measured with a newly developed sweating thermal manikin. European Journal of Applied Physiology, 92(6), 645-648 https://doi.org/10.1007/s00421-004-1124-3
  7. Gagge, A. P., Stolwijk, J. A., & Saltin, B. (1969). Comfort and thermal sensations and associated physiological responses during exercise at various ambient temperatures. Environmental Research, 2(3), 209-229 https://doi.org/10.1016/0013-9351(69)90037-1
  8. Hardy, J. D., & DuBois, E. F. (1938). The technic of measuring radiation and convection. Journal of Nutrition, 15(5), 461-475
  9. Havenith, G., Heus, R., & Lotents, W. A. (1990). Clothing ventilation, vapour resistance and permeability index: change due to posture, movement and wind. Ergonomics, 33(8), 989-1005 https://doi.org/10.1080/00140139008925308
  10. Havenith, G., Ueda, H., Sari, H., & Inoue, Y. (2003). Required clothing ventilation for different body regions in relation to local sweat rates. In R. Rossi (Ed.), Proceedings of 2nd European Conference on Protective Clothing, pp. 212-217
  11. Huang, J. (2006). Thermal parameters for assessing thermal properties of clothing. Journal of Thermal Biology, 31(6), 461-466 https://doi.org/10.1016/j.jtherbio.2006.03.001
  12. Lin, Z., & Deng, S. (2008). A study on the thermal comfort in sleeping environments in the subtropics-Developing a thermal comfort model for sleeping environments. Building and Environment, 43(1), 70-81 https://doi.org/10.1016/j.buildenv.2006.11.026
  13. Nishi, Y., & Gagge, A. P. (1977). Effective temperature scale for use in hypo- and hyperbaric environments. Aviation, Space and Environmental Medicine, 48(2), 97-107
  14. Tsutsumi, H., Tanabe, S., Harigaya, J., Iguchi, Y., & Nakamura, G. (2007). Effect of humidity on human comfort and productivity after step changes from warm and humid environment. Building and Environment, 42(12), 4034-4042 https://doi.org/10.1016/j.buildenv.2006.06.037
  15. Ueda, H., Inoue, Y., Matsudaira, M., Araki, T., & Havenith, G. (2006). Regional microclimate humidity of clothing during light work as a result of the interaction between local sweat production and ventilation. International Journal of Clothing Science and Technology, 18(4), 225-234 https://doi.org/10.1108/09556220610668473
  16. 田村照子. (2004). 衣の科シリズ -衣環境の科, 東京: 建帛社
  17. 立天文台 編. (2009). 理科年表(机上版 第82冊), 東京: 丸善株式社