• The Korean Journal of Community Living Science
• /
• v.17 no.4
• /
• pp.49-56
• /
• 2006

The purpose of this study was to evaluate the thermal and subjective comfort of various pesticide-proof clothes made from different material. Seven male adults took part in the study, conducted in a climate-chamber controlled with an ambient temperature of $30^{\circ}C$ and a relative humidity of 60%RH. The thermal and subjective responses of subjects wearing pesticide-proof clothing made of Goretex(coating treatment), polyester (water-repellent treatment), non-woven(coating) and nylon(coating) were measured. The main results were summarized as follows: (1) Change of rectal temperature and clothing microclimate were inhibited more effectively in pesticide-proof clothing made of Goretex, polyester and non-woven than nylon materials. (2) Mean skin temperature at the end of the experiment was significantly higher in subjects who wore nylon than non-woven and Goretex, and was lowest in those with pesticide-proof clothing made of polyester. (3) Change of heart rate was significantly lower in subjects with Goretex and polyester clothiing than those with non-woven, and in those with nylon, it was highest. (4) Subjective comfort was greater in subjects with Goretex, polyester and nonwoven clothing than nylon, except for thermal sensation. Thermal sensation was greater in order of polyester, Goretex, non-woven and nylon. Thus, it was concluded that pesticide-proof clothing made of Goretex, polyester and non-woven material could reduce thermal stress during the spraying of pesticides in summer.

• Journal of the Korean Society of Clothing and Textiles
• /
• v.37 no.1
• /
• pp.64-75
• /
• 2013

This study suggests basic data on optimum thermal insulation for spring wear through an investigation of subjective thermal sensation, self-health image and actual wearing conditions. A survey of university students using a self-administered questionnaire was conducted to collect data on subjective thermal sensation, self-health image, wearing conditions, demographics and physical characteristics. The variable of wearing conditions was measured as the response to the clothing they were wearing. Garment items (26 types for males and 41 types for females) were suggested and the items worn by the students were converted into the thermal insulation values for clothing. The main results are as follows. As for the body type perception, males perceived themselves as not fat while females perceived themselves as not thin. As for the health perception, males perceived themselves healthier than females. As for the climate adaptability perception, females were more sensitive to cold than males. The average thermal insulation of clothing was 0.97clo (0.34-1.95clo) with higher insulation for males than females. Students were more sensitive to the cold when their BMI was lower, their body surface area per body weight was larger, and the more they perceived themselves as not healthy. There was a significant correlation between the self-health image of sensitiveness to cold and the thermal insulation of clothing. The results were synthetically discussed in terms of environmental physiology.

• Fashion & Textile Research Journal
• /
• v.1 no.1
• /
• pp.43-49
• /
• 1999

This study conducted 4 different kinds of underwear materials, which were A (Cotton 100%), B (Wool 100%), C (Cotton/Wool, 50/50%) and D (Acrylic/Cotton, 50/50%) and were done in a climate chamber under cold ambient $10{\pm}1^{\circ}C$, $40{\pm}5%RH$ by 6 male subjects who were in good health. Physiological parameters such as rectal and local skin temperature(forehead, forearm, hand, trunk, thigh, leg, foot, back and chest), heart rate, body weight loss, clothing microclimate, blood lactic acid concentration, and wearing sensation were measured. Started with a 15-min rest period, 15-min of exercise 1 (the condition of 4.5 mile/hr walking speed equivalent to with 8.5 Kcal energy consumption on the treadmill) period, 15-min rest period, exercise 2 (after 3minutes warming-up at 3.0. 3.7, 4.5. 5.2. 6.0, 6.7 mile/hr) until exhaustion period, and final 15-min of recovery period were performed. The results were as follows: The lowest mean skin temperature was acrylic/cotton in order of wool > cotton/wool > cotton > acrylic/cotton (F=13. 79. p<0.00l). Most of all skin temperature by parts of body had turned out in sequence of temperature wool > cotton/wool > acrylic/cotton > cotton. Fore arm part showed highest temperature about $32.43^{\circ}C$ on wool and had a tendency approximately $1.8^{\circ}C$ higher than cotton which had the lowest temperature, and had the biggest difference among garments in terms of skin temperature. The back temperature within clothing showed about $2^{\circ}C$ higher than the chest temperature within clothing. but the back humidity within clothing showed about 4~12% higher than the chest humidity within clothing. Body weight loss by each garment was this sequence; cotton > acrylic/cotton > wool > cotton/wool.

• Journal of Fashion Business
• /
• v.3 no.2
• /
• pp.49-58
• /
• 1999

The purpose of this study is to investigate a variety of the Indian costume of the Central-South America and to examine the relation and symbolization of each Indian culture arrd costume. A study's method is to be examined through literatues related to the culture and history of Central-South America Indian, photos and references related to costume. The results are as follows. First, an analysis of Indian male of Central-South America reveals that costume types are different according to cultural areas. Second, an analysis Indian female of Central-South America reveals tlrat costume types are differerrt according to cultural areas. Third, a study on colors and patterns of Indian costume and personal ornament in Meso-America culture area reveals that they were influenced on the Maya and Aztec Civilizations. Fourth, a study on colors and patterns of Indian costume and personal ornament in Andes cultural area reveals that they were influenced on the Inca Civilization. Fifth, a type of ponchos is commonly revealed in Meso America and Andes cultural areas because of particular climate. Sixth, a study on Tropical costume types reveals that they are very different from those of Meso-America and Andes culture areas due to its climate and terrain conditions.

• Journal of the Korean Society of Clothing and Textiles
• /
• v.36 no.4
• /
• pp.371-381
• /
• 2012

This study investigates quantitative wear training effects and involved 15 participants from a previous study (part 1) in May to September 2009. Before wear training, the subjects' rectal temperature, skin temperature, heart rate, blood pressure and local sweating were measured for 1 hour in a climate chamber ($39{\pm}1^{\circ}C$, $65{\pm}5%RH$, 0.3m/s) to evaluate heat tolerance. Subsequently, the subjects were divided into 3 groups that consisted of 5 participants. Group N (control-group) dressed the participants so that they felt comfortable (or cool). Group W and MW where participants underwent regular wear training for 10 weeks (5 days a week a total of 50 times). The intensity of the wear training for the participants of group MW was stronger than that for group W. A heat-tolerance experiment was performed after wear training. The results were as follows: 1. The participants of groups W and MW felt more comfortable after wear training than before wear training in the case of warmer $T_{cl}$. However, no significant differences were observed before and after wear training for group N. 2. The heat tolerance of the participants of groups W and MW was higher after wear training than before wear training. However, no significant difference was noted in this regard for group N. 3. The results showed the wear training effect (based on quantitative guidelines). The results show that the predicted optimal temperature inside clothing can enhance heat tolerance.

• Science of Emotion and Sensibility
• /
• v.18 no.3
• /
• pp.93-106
• /
• 2015

In accordance with escalating demands for advanced technology products, the smart clothing that includes embedded ICT technology have expanded into fields of daily life. As a result of this trend, interest in smart clothing with digitally controllable heating has rapidly grown and the market for smart heated clothing has also expanded. Increasing of prospect in smart heated clothing market, the effectiveness and thermal sensation research of the location on the pad attached is insufficient. This study was conducted to find the optimal location of heated clothing via experimental research on changes in skin temperature and subjective thermal sensation when heating pads were placed on different areas of the body. For this experiment, the subjects consisted of 10 males in their 20's of standard physique. The skin temperature at 11 different areas of the body, rectal temperature, and subjective thermal sensation were taken at different stages (before testing, after a 20 minute rest period, 20 minute treatment period, and after a 40 minute recovery period) in an artificial-climate chamber at $-5^{\circ}C$. As a result, the optimal location for heating pads in smart clothing was estimated and suggested.

• Fashion & Textile Research Journal
• /
• v.13 no.5
• /
• pp.752-758
• /
• 2011

In this paper, experiments to develop working clothes and evaluated, including the current and material-improved working clothes in relation to physiological functionality measurement. Experiments were conducted on subjects after wearing working clothes in an climate chamber, and the thermo-physiological response, such as human body temperature, micro-climate within the clothes, blood pressure, heart rate were measured. In this manner, the physiological functionality of improved working clothes was compared with that of current working clothes and evaluated. The summary of obtained results is as follows: For physiological functionality evaluation through material-improved working clothes, P working clothes showed significantly lower rectal temperature than C working clothes. For mean skin temperature, P's skin temperature was significantly higher than C's in the second half of the experiment. P working clothes's temperature around the thighs in Micro climate was significantly lower than that of the C working clothes. Also, humidity within the clothes showed similar trends. During the exercise period, C working clothes showed higher blood pressure than P, but P showed higher heart rates than C. Also, the oxygen uptake amount was higher in C than P during the exercise period, it explains that the energy consumption amount of P working clothes was smaller than that of C working clothes. Of the subjective evaluation, for temperature sensation, workers wearing P working clothes felt cooler. For humidity, C working clothes showed more humidity. For comfort, P working clothes were better, and for sense of fatigue, workers felt less tired wearing P working clothes. From results above, we can see that physiological functionality improved in the material-improved working clothes in the working clothes for construction site workers. The improvement of working clothes through functionality improvements not only will provide personal pleasantness to constriction site workers, but will also generate efficiency and productivity improvements at construction sites. All in all, the continuous study of functionality improvements in working clothes taking into consideration the human body's physiological responses is required.

• Fashion & Textile Research Journal
• /
• v.2 no.5
• /
• pp.416-422
• /
• 2000

In this study, to find out the physiological reaction of the human body and the sensation of comfort when people are wearing sportswear which is made of waterproof breathable fabrics under general environmental conditions (temperature : $20{\pm}1^{\circ}C$, humidity : $60{\pm}5%RH$, air current : 0.1 m/sec) and rainy environmental conditions (temperature : $20{\pm}1^{\circ}C$, humidity : $60{\pm}5%RH$, air current : 0.1 m/sec, rainfall : 250 1/hr), we made an experiment with sportswear in an artificial climate chamber and studied the thermal physiological response and subjective sensation. Mean skin temperature of the subjects was low and had a big range of fluctuation in rainy environmental conditions of two condition. Temperature started to increase at the beginning of the exercise, reached the maximum at the 2nd level of the exercise and then started to decline. Rectal temperature showed a slighter increase and bigger range of fluctuation in general conditions than in rainy conditions. Except clothing micro climate in rainy conditions, temperature and humidity and their range of fluctuation around back were higher than those around chest. Humidity was high and had wide range of fluctuation in general conditions. Heart rate was 4.4 beats/min higher in general conditions. In subjective test on rainy conditions, the feeling of discomfort increased due to the raindrops fallen on the skin. Unlike that in general conditions, cold sensation increased and humidity sensation reached to the peak after the exercise. In wearing sportswear made of shape memory breathable waterproof fabric, controlling function over a small amount of heat and water was distinctive while it turned out to be not so comfortable over a large amount of heat and water. Through this, the limitation of shape memory breathable waterproof fabric was recognised.

• Journal of the Korean Society of Clothing and Textiles
• /
• v.21 no.2
• /
• pp.314-324
• /
• 1997

The purpose of this study was to evaluate the thermoregulatory response level on the heat and cold tolerance with investigating monthly changes of skin temperature in Koreans and to obtain the basal information for standard amount of clothing weight, indoor climate and working condition. Forty eight subjects in 5 age groups (6~11, 12~19, 20~44, 45~64, 65~76 years old) with both sexs were taken from Seoul and Kyunggi probince. All subjects were measured skin temperature, mean skin temperature, Total clothing weight in neutral condition in each month from June 1994 to May 1995. The results obtained are summarized as follows: 1. Skin temperature of all subjects was low on February, March and April, and was high on June, July and August. Temperatures of the torso (forehead and abdomen) and the lower limbs (leg and foot) were remarkably different. In general, most of skin temperatures except of hand, thigh and foot were higher in males. 2. Mean skin temperature was 0.5'c higher in males than female with ranging 32.5~34.5$^{\circ}C$ in males and 32.1~34.1$^{\circ}C$ in females. Also, mean skin temperature of 6~11 age group were higher than that of 45~ 64 age group in both sexs.

• Journal of the Korean Society of Costume
• /
• v.51 no.8
• /
• pp.141-157
• /
• 2001

It has been since 15 century when Ainu realized themselves as a race. Their folk culture had been formed with the effect of East-northern Asia and cultural exchange with Japanese through the northern trade during 17 -18 centuries. It can be ascertained from the typical festival food and clothing. clothing style and the ornaments of Ainu people. The basics of Ainu people are composed of an unfolding clothes which men and women had wort in one-piece style even though they had lived in the northernmost cold climate. Atousi is their typical clothing which had been made of the grass fiber. Ainu people had imported the old cotton clothes from the trading with the mainland roughly in the late E-do (late 18 century). Ainu's clothing is divided broadly into Aiusi and Moreu pattern. Ainu people had decorated their back, shoulder, collar, burial clothes, waist and hem by changing and mixing them. These are the expression of their desire to prevent themselves from the wicked plot or the devil. There is no similar Ainu patterns or skill in Kimono, while it is known to be rather related to the area of Amur River, Sakhalin, and the distant Mongolia. Therefore, the traditional pattern of Ainu should be the continental conception which had been skilfully shaped through the trading with the north adding the series of Ainu People.