• Textile Coloration and Finishing
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• v.20 no.6
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• pp.82-86
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• 2008

Cooling function is definitely one of the most desirable attribute of clothing. In spite of the recent progress on phase changing material(PCM) research, the final products with sufficient amount of cooling capability have not yet to be developed in market. A new concept of cooling fabrics has been proposed by applying "Peltier effect" to textile materials. It occurs whenever electrical current flows through two dissimilar conductors; depending on the direction of current flow, the junction of the two conductors is absorbed or released heat. This effect has been tested on P-type and N-type conducting polymers. A P-type conductive polypyrrole coated fabric was synthesized by in-situ polymerization on plain weave PET to make conductive fabrics. And an N-type electrically conductive material was synthesized by treatment of MWNT and polyethyleneimine(PEI). A noticeable amount of temperature difference has been found on the fabrics.

• International Journal of Costume and Fashion
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• v.10 no.2
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• pp.61-71
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• 2010

The purpose of this study was first, to examine the causes for the recent acceleration in the increase of textile/apparel waste and the current practices for reducing waste in the global textile and apparel industry; and second, to explore the influence of sustainability and social responsibility on fashion trends. Extensive literature on sustainable apparel and sustainable and socially responsible practices by global textile and apparel firms was reviewed in conducting this research. First, an accelerated fashion diffosion speed due to fast fashion was focused on as a cause for the increase in textile/apparel waste whereas mass customization was focused on as a potential solution for reducing waste. Then, the influence of the social trend toward sustainability and social responsibility on fashion trends was discussed, particularly the trends toward green products and recycled fashion, the trend against using real for or leather, and minimum-fabric-waste fashion in design and product development. This study furthers consumers' understanding of sustainability and social responsibility related to fashion trends and hopefully increases their consciousness in becoming socially responsible consumers. This study will also contribute to better decision-making in apparel and textile firms to produce sustainable fashion products.

• Journal of Fashion Business
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• v.17 no.3
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• pp.85-98
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• 2013

Fabric industry has been developing enough to introduce diverse stretch materials to apparel market, so that tightly fitting leggings designs are taking over not only sports wear but also women's clothing. This study is aimed at developing prototype designs for leggings pants using stretch material that are appropriate for the lower part of body being functional, comfortable, and beautiful. As well, the study is intended to be of a reference in manufacturing such products. Some of the most popular leggings on the market in their kinds and materials were primarily selected to be tested in two ways: wear test and appearance test. Again, the test pants went through the same kinds of two tests, which turned out two designs. Finally, the test pants were treated to yield the most desirable prototype design. In conducting all these tests, some major defects causing discomfort and shortcomings of the leggings pants on the market were exposed and through the wear tests, the drawbacks were seen to be complemented in a big way. Thus, it is hopefully expected that this study will serve as a good reference for developing stretch pants.

• Geomechanics and Engineering
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• v.35 no.4
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• pp.437-447
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• 2023

The failures of tailing dams have caused irreparable damage to human lives, assets and environment and this has ultimately resulted in great economic, social and environmental challenges worldwide. Due to this, investigation into mechanical behaviour of tailings has received some attention. However, the knowledge and understanding of mechanics of behaviour in iron tailings is still limited. This study investigates the mechanics of iron tailings from Nigeria considering grading, effects of fabric resulting from different sample preparations and the possibility of non-convergent behaviour. This was achieved by conducting series of one-dimensional compression tests in conjunction with index, microstructural, chemical and mineralogical tests. The materials are predominantly poorly graded, non-clayey and non-plastic. The tailings are characterised by angular particles with no obvious particle aggregations and dominated by silicon, iron, aluminium, haematite and quartz. The compression paths do not converge and unique normal compression lines are not found and this is an important feature of the transitional mode of behaviour. The behaviour of these iron tailings therefore depends on initial specific volume. The preparation methods also have effect on the compression paths of the samples. The gradings of the samples have an influence on the degree of transitional behaviour but the preparation methods do affect the degree of convergence. The transitional mode of behaviour in these iron tailings investigated is very strong.

• Journal of the Korea Fashion and Costume Design Association
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• v.12 no.2
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• pp.131-138
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• 2010

The purposes of this study are for current manufacturing status of the formal knit slacks for the middle aged women. As for the methodology, five manufacturers specializing in formal knitwear brands were subjected to the study, to examine the current manufacturing status of the knit slacks for the middle aged women, by conducting interviews and questionnaire with patterner and designer. The questionnaire items are 20 ones including general questions on manufacturing of the knit slacks, questions on materials used in manufacturing, and on sewing. The results are as followings : First, as for the manufacturing structure of the knit slacks manufacturer, all manufacturers directly manufactured knit slacks in their own factory, and the manufacturing was comprised of 10% in woven slacks and 90% in knit slacks. Second, as for the type of yarn mostly used in fabric knitting for the knit slacks, wool was used mostly for F/W, and acrylic or Saint yarn for S/S. As for the types of knit, Milano rib stitch and Half Milano rib stitch were used for wool and acrylic knitting, and plain stitch was used for Saint yarn. As for the gauge, 12G and 14G were used, whereas 7G, 12G was used for Saint yarn. Repair requests of the knit slacks were mostly on the length of the pants, such as shortening hip circumference and crotch length, or widening waist and hip area. The study shows that the size of knit slacks did not fit the body type of customers.

• Journal of the Korean Society of Costume
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• v.66 no.3
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• pp.32-50
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• 2016

The purpose of this study is to reveal the process of enactment and revision, the contents of the police uniform system by the Government-General of Joseon, and to examine the relationship between the uniform system and the ruling policies of Imperialist Japan. The research methodology involved document research of official gazettes that published legislation on the police uniform system. Political background was referenced from various preceding studies. The research results are as follows. The Japanese invasion of Korea, in regards to the police, appeared as infiltrations through the three routes of consular police, temporary military police, and inside the Korean police. Each organization had different uniform systems, and after the installation of the Japanese police in 1907, the uniform system of high level officers of the Korea police was changed to the Japanese-style. After the installation of the Government-General of Joseon in 1910, a police uniform system was not enacted until 1918, with the exception being made for police officers due to the military police system. The 'Police Officer Uniform System of the Government-General of Joseon' enacted in 1918 stood out for its golden insignia on solidly colored fabric, which effectively indicated rank, as well as the Japanese flag pattern and the cherry blossom pattern, which symbolized imperialist Japan, on the cap badge and insignia. The 1918 uniform system had many differences from the Japanese system of the time in terms of design, perhaps due to the political autonomy of the governor-general. The 1918 uniform system was completely revised in 1932. This uniform system was modified in various ways. The system was almost identical to the Japanese system at that time. This is the result of Japan's intent to dominate Korea, which involved assimilating Korea into Japan with the purpose of conducting a full-fledged invasion of the continent after the Manchurian Incident.

• Journal of the Korea Fashion and Costume Design Association
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• v.25 no.3
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• pp.113-125
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• 2023

The COVID-19 pandemic has led to the normalization of mask-wearing worldwide, and young children are particularly vulnerable to respiratory diseases. Children's masks come in various sizes and shapes, causing confusion among consumers who struggle to find products that can accommodate their child's unique physical conditions. This research aims to analyze the shape and dimensions of health masks designed for young children. A total of 67 mask varieties were collected, and 58 were subjected to analysis. The masks were found to have two primary shapes: foldable and beak-like, with sizes categorized as small and extra-small. The majority of masks were manufactured in Korea, and the size labeling systems varied among manufacturers. The mask materials were non-woven fabric or polypropylene, and there was diversity in terms of the adjustable earbands and the use of additional accessories. The dimensions of the masks varied depending on their shape, with significant differences in the weight and the length of the wire holes. Subsequent research should focus on conducting wearability evaluations to verify the dimensional suitability of commercially available children's health masks based on shape and size. Additionally, this study aims to provide foundational data that can assist in the development of children's masks with size ranges that differentiate them from adult masks and cater to specific age groups.

• Fire Science and Engineering
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• v.34 no.1
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• pp.11-17
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• 2020

As performance-based design (PBD) has a direct impact on evacuation safety assessments, designing fire scenarios based on real fire tests is essential. To improve the reliability of the PBD for fire safety in multiplexes, information on fire behavior, such as heat release rate (HRR) and fire spread rate, are provided in this study by conducting a standard fabric flammability test. To this end, several chairs were arranged in a pattern that resembled a theater-style seating. The peak HRR and heating value per unit mass for each chair ranged from 415 kW to 988 kW and 15.2 MJ/kg to 23.8 MJ/kg, respectively. The heating values per unit mass of the new and old chairs were 23.6 MJ/kg and 16.7 MJ/kg, respectively. As the quantity of plastic and cushioning materials in the new chairs was more than that of the old ones, the new chairs were more vulnerable to fire hazards. Furthermore, when the chairs were arranged in a line, the fire spread rate was observed to be 0.39-0.42 m/min, regardless of the ignition location. Finally, a fire growth curve showing the peak HRR and fire spread rate was also demonstrated.

• Science of Emotion and Sensibility
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• v.24 no.2
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• pp.81-92
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• 2021

In this study, we investigated the effects of five EMS lumbar back pressure belts produced on an anatomical basis on lumbar spine stabilization. Five core muscles were selected, including the urinal, vertebral column, endotracheal, external abdominal, and large back muscles, and patterns were designed using a conductive fabric considering the appropriate muscle shape and pain-causing points. We experimented with four motions to examine the effects of different EMS abdominal compression belts on lumbar spine stabilization. Five healthy men in their 20s were selected. The selection conditions include no back pain history for the past three months, no restricted movements through pre-inspection, and the muscular strength of the body should belong to the normal grade. Using SLR, the sequence of experimental actions was chosen from the following but not limited to left-hand, body-hand, and back-line forces. Resting between movements lasted for 2 min, and the experiments were conducted after wearing the EMS abdominal pressure belt. Electrical stimulation was applied for 10 min to increase blood flow and muscle activation. The statistics of the experimental results were analyzed for specific differences by conducting the Wilcoxon and Friedman tests with nonparametric tests. The ranking results of each pattern were successfully assessed in the order of 5, 4, 3, 1, 2 for the five patterns, and we could identify slightly more significant results for experimental behavior associated with each muscle movement. Patterns produced based on anatomy showed differentiated effects when electric stimulation was applied to each muscle in different shapes, which could improve the stabilization of the lumbar spine in everyday life or training to the public. Based on these results, subsequent research would focus on developing smart healthcare clothing that is practical in daily life by employing different anatomical mechanisms, depending on the back pain, to utilize trunk-type tights.

• Conservation Science in Museum
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• v.27
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• pp.39-56
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• 2022

The purpose of this project was to improve the stability of a pair of leather socks for use on snowy days in the collection of the National Museum of Korea (Namsan1567) by conducting conservation treatment and restoring the socks to their original form for use in research and exhibition. Leather socks are referred to in ancient documents with names combining the word "mal" for socks with a term indicating their material (e.g., pimal, meaning leather socks; nokpimal, meaning deer leather socks; jangpimal, meaning roe deer leather socks, or lipimal, meaning racoon dog leather socks) and are mentioned mostly in connection with Jeju Island. Related documents include the Seungjeongwon ilgi (Daily Record of the Grand Secretariat), Injaeilnok (Diary of Injae Jo Geukseon), and Hamel's Journal and a Description of the Kingdom of Joseon. Extant examples of ancient leather socks display the same form as beoseon (traditional Korean socks) and are made of either leather or a combination of leather and fabric. It is likely that such leather socks were worn on Jeju Island to protect the feet from the cold. A condition survey of the leather socks was first conducted to establish a plan for their conservation treatment. Since the socks were in rather poor condition, it was decided to identify their original form through an investigation of relics and pertinent previous studies. The socks were cleaned in consideration of results of the condition survey, and the missing parts around the necks of the socks were reinforced in a reversible manner using counting stitches with cloth dyed to match the original color. Since the bottoms of the socks had lost much of their original form due to deterioration and disintegration in the leather, supports were made and inserted inside the socks to help retain their shape. Through these processes, the structure and characteristics of the socks and the techniques used in their production could be analyzed, their condition was stabilized, and their original form was recovered.