생분해성 PLA 소재로 만든 일회용 축산작업복의 쾌적성 평가 (Evaluation on the Thermal Properties of Bio-degradable PLA Disposable Coveralls for Livestock Industry Workers)

서지정보

· 발행기관 : 한국생활환경학회
· 수록지 정보 : 한국생활환경학회지 / 18권 / 5호 / 562 ~ 569페이지
· 저자명 : 이효현, 황경숙, 김도희, 권주연, 이경숙, 채혜선, 김효철

초록

Livestock farmers have been working with loss of efficiency and threatening health for heat stress. Nevertheless,work clothes for them have not been developed yet in terms of alleviation of heat stress. The purpose of this study was to develop working clothes that was eco-friendly and could alleviate heat stress of stock farming workers.
The developed clothes were a biodegradable fabric made from PLA. The design was the same as the market product (disposable, coverall type). The fabric test results showed that developed work wear fabric had proper safety (water resistance, water-vapor resistance, Surface wetting resistance). The physiological (rectal temperature, skin temperature,heart rate, clothing microclimate, total weight loss) responses and subjective responses (thermal sensation, humidity sensation, comfort) of human subjects (Male 4, 26.5±0.6 yr, 75.3±6.3 kg, 176.6±4.1 cm, 1.893±0.079 m^2, BMI 24.1±2.1) were measured in the climate camber (28±1oC, 50±5%RH). The rectal temperature, skin temperature, heart rate and clothing microclimate were significantly lower in new working clothes than market product. The subjects felt less humid in developed clothes (p < .01). There were no significant differences in thermal sensation and comfort by working clothes fabric types, although subjects felt hotter and less comfortable while wearing in market product. The results suggest that the PLA work wear is more effective in reducing heat stress than the other and the developed garment can contribute to save environment.

영어초록

Livestock farmers have been working with loss of efficiency and threatening health for heat stress. Nevertheless,work clothes for them have not been developed yet in terms of alleviation of heat stress. The purpose of this study was to develop working clothes that was eco-friendly and could alleviate heat stress of stock farming workers.
The developed clothes were a biodegradable fabric made from PLA. The design was the same as the market product (disposable, coverall type). The fabric test results showed that developed work wear fabric had proper safety (water resistance, water-vapor resistance, Surface wetting resistance). The physiological (rectal temperature, skin temperature,heart rate, clothing microclimate, total weight loss) responses and subjective responses (thermal sensation, humidity sensation, comfort) of human subjects (Male 4, 26.5±0.6 yr, 75.3±6.3 kg, 176.6±4.1 cm, 1.893±0.079 m^2, BMI 24.1±2.1) were measured in the climate camber (28±1oC, 50±5%RH). The rectal temperature, skin temperature, heart rate and clothing microclimate were significantly lower in new working clothes than market product. The subjects felt less humid in developed clothes (p < .01). There were no significant differences in thermal sensation and comfort by working clothes fabric types, although subjects felt hotter and less comfortable while wearing in market product. The results suggest that the PLA work wear is more effective in reducing heat stress than the other and the developed garment can contribute to save environment.

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