衣服環境における快適素材としてのイグサの利用

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The purpose of this study was to clarify the characteristics of an IGUSA mixed-spun fabric blouse in terms of its thermal responses and its amenity to heat-loading in women. An IGUSA mixed-spun material blouse was compared in terms of three conditions: fabric composed of 20% IGUSA blended with 80% cotton, 100% cotton, and nude. Eleven women were exposed to 43-degree moist heat loading for 30 min. Individual skin temperatures, local sweat rate (M_<sw>), core temperature (T_<core>), and inner-clothes temperature and humidity were measured throughout the experiment. Although the mean skin temperature (T^^-_<sk>) calculated based on individual skin temperatures beneath the IGUSA mixed-spun material blouse increased abruptly at early heat loading, it tended to be lower than the temperature under a 100% cotton blouse. M_<sw> under the IGUSA mixed-spun material blouse increased slowly and tended to be lower compared with that under the 100% cotton blouse during the later heat loading. During the recovery period following heat loading, both T^^-_<sk> and T_<core> under the IGUSA mixed-spun material blouse decreased slowly compared with those under the 100% cotton blouse, showing a significant difference between the IGUSA mixed-spun material blouse and the 100% cotton blouse during the later recovery period (p<0.05). The increases of inner-clothes temperature and humidity under the IGUSA mixed-spun material blouse were significantly greater than those under the 100% cotton blouse throughout the experiment, which could be attributed to the material's heat retention. These results suggest that IGUSA mixed-spun material could reduce the stress of the human body under thermal loading by allowing slower adjustment to inner-clothes temperature and humidity.
社団法人日本家政学会の論文
2008-04-15

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