Journal of Textile Research ›› 2022, Vol. 43 ›› Issue (09): 182-187.doi: 10.13475/j.fzxb.20210805506

• Apparel Engineering • Previous Articles     Next Articles

Distribution characteristics of local skin moisture sensitivity of human in thermal environment

LI Ningning1, ZHANG Zhaohua1,2(), XU Suhong1, ZHENG Ziyi1, LI Xiaoyu1   

  1. 1. College of Fashion and Design, Donghua University, Shanghai 200051, China
    2. Key Laboratory of High Performance Fibers & Products, Ministry of Education, Donghua University, Shanghai 201620, China
  • Received:2021-08-12 Revised:2022-06-06 Online:2022-09-15 Published:2022-09-26
  • Contact: ZHANG Zhaohua E-mail:zhangzhaohua@dhu.edu.cn

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Abstract:

In order to study the distribution characteristics of local skin moisture sensitivity of human under thermal environment and the relationship between objective physical humidity and human subjective moisture feeling, the body fitted one-piece experimental clothes were made of elastic knitted fabric for tests in the artificial climate cabin (the temperature is (30±1) ℃ and the relative humidity is (35±1)%). Six female subjects wore the experimental clothes and walked on the treadmill at the speed of 5 km/h. The objective physiological data and subjective evaluation data of the subjects were recorded during the experiment. The results indicated that the moisture sensitivity of human skin has some local distribution characteristics in the thermal environment. The high sensitivity areas were the upper forehead, chest and lower back, the medium sensitivity areas were upper arm, anterior abdomen, upper back, forearm and buttocks, and the low sensitivity areas were calves and thighs. The experiment confirmed that the skin humidity perception increased with the increase of physical humidity, and there was a positive correlation between humidity perception and physical humidity.

Key words: moisture sensitivity, clothing comfortability, perception of wetness, physical humidity, elastic knitted fabric

CLC Number: 

  • TS941.16

Tab.1

Basic performance parameters of experimental fabrics"

面密度/
(g·m-2)		 透气率/
(mm·s-1)		 透湿率/
(g·m-2·d-1)		 弹性回复率/%
纵向 横向
142 161.61 1 180.67 89.17 92.62

Fig.1

Clothing style. (a) Front; (b) Back"

Fig.2

Body testing parts. (a) Front;(b) Back"

Tab.2

Meaning of local wet sensation scale"

标尺刻度 含义 解释
0 非常干 非常干燥
1 干 皮肤感觉微干、紧绷
2 几乎不湿 皮肤不紧绷也不湿润
3 微湿 皮肤刚感觉有潮湿感
4 较湿 有潮湿感并出现汗珠
5 很湿 有大量汗珠,但不成股
6 非常湿 有成股汗珠形成,大汗淋漓

Fig.3

Average skin temperature"

Fig.4

Average skin humidity"

Tab.3

Sweat output and sweat evaporation"

受试者编号 总出汗量/kg 汗液蒸发量/kg 汗液蒸发效率/%
1 0.430 0 0.347 0 80.70
2 0.356 0 0.338 0 94.94
3 0.385 0 0.368 0 95.58
4 0.383 0 0.373 0 97.39
5 0.342 0 0.335 0 97.95
6 0.288 0 0.281 0 97.57
平均值 0.364 0±0.047 9 0.340 3±0.032 9 94.02±6.63

Tab.4

Frequency of wet feeling evaluation of local parts of subjects at time line"

身体部位 不同时刻湿感觉频数/次
0 min 5 min 10 min 15 min 20 min 25 min 30 min 35 min 40 min 45 min 50 min
上额 0 0 0 3 5 5 5 6 6 6 6
上臂 0 1 1 2 4 4 4 6 6 6 6
小臂 0 0 0 1 2 3 3 4 6 6 6
前胸 1 1 1 4 4 4 6 6 6 6 6
前腹 0 0 0 2 3 3 3 3 3 4 4
大腿 0 0 0 1 2 2 2 3 3 3 3
小腿 0 0 0 0 0 2 3 3 3 4 4
上背 0 0 0 1 3 6 6 6 6 6 6
下背 1 2 2 3 4 5 6 6 6 6 6
臀部 0 0 0 1 1 3 4 4 4 4 5

Fig.5

Percentage of wet feeling evaluation subject in local skin"

Fig.6

Scatter plot of physical wetness and subjective wetness sensation in local skin"

Fig.7

Correlation of physical wetness and subjective wetness sensation in local skin"

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