• Journal of the Korean Society of Clothing and Textiles
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• v.31 no.9_10
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• pp.1408-1417
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• 2007

In Korea, to deal with the housing needs of the elderly, the government operates free nursing homes and residential homes. And to deal with the needs for daily necessities, imported products or products for the disabled have been supplied for the elderly. The government has recognized the importance of silver industry in this rapidly aging society and has established strategies to vitalize industries related to seniors to deal with the seniors' need for food, clothing, and shelter. This study examined the necessity of nursing home gowns, and the development of nursing home gowns that are environmentally friendly, beautiful and functional for the new silver generation. For this study, literature review and Internet search were conducted regarding the status of silver fashion, necessity of nursing home gowns, emergence of new silver generation and change in lifestyle, and value and utilization of natural dye and traditional patterns. To produce nursing home gowns, fabric was dyed using fermented indigo dying, and 3 styles of nursing home gowns for each gender were designed in consideration of seasons. Lastly, these gowns were evaluated by fashion experts, medical personnel, hospital gown and silver wear experts, and natural dye experts. The results showed that the traditional Korean designs developed in this study were excellent and the fermented indigo dye was appropriate for the nursing home gowns. The development of nursing home gowns in this study will be utilized as basic material for the development of silver wear and nursing home gowns to improve the quality of life for the seniors.

• Proceedings of the Korean Society of Tribologists and Lubrication Engineers Conference
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• 2001.11a
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• pp.27-34
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• 2001

A new functionally gradient metal coating method using an atomic mixing technique was developed. In this work the effect of silver atomic mixing on the tribological characteristics of silver$.$ films. has been investigated experimentally. Atomic mixing was implemented by using the, bombardment .of accelerated Ar ions during the thermal evaporation coating process of silver films. Experiments were performed in dry conditions using a ball-on-disk test rig at a load range of 19.6 mN - 17.64 N and a sliding velocity of 20 mm/sec. Results showed that the life of functionally gradient silver coating was enhanced about 100 times more than that of thermally evaporated silver coating and 2 times more than that of IBAD silver coating. The functionally gradient. film also showed low friction and wear compared to those of the evaporated silver and

• Journal of the Korean Society of Costume
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• v.61 no.1
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• pp.47-57
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• 2011

This study is aimed at presenting the information on tailor-made clothes products which could positively relieve the psychological anxiety of the aged and enhance their living independence, and also at the development of clothes designs which could help them enjoy their healthy and activities. Based on the survey, the study conducted the research and analysis on the wearing practices, problems, and improvements for the clothes for the aged and found out their favorite clothes designs and colors. Based on the findings, the clothes models were recruited that reflect the physical features of silver-generation women and assist them with their joint protection. Moreover, the emphases were placed on the convenience of dressing or undressing, and the current fashion of development of clothes. The number of the clothes models developed were 11 for one pants suit, two skirt suits, one knit wear, one training wear, and one bolero.

• Tribology and Lubricants
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• v.17 no.6
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• pp.417-426
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• 2001

The effect of silver particle introduction on the rolling friction of AISI 52100 steel pairs has been investigated. Experiments ware performed in dry conditions using a thrust bearing-type rolling test rig at a load range of 12-960 N and a sliding velocity range of 8-785 mm/sec with pure (99.99%) silver particles. Results showed that introduced silver particles formed transfer layers, which protected the virgin bearing surfaces and resulted in the low lolling friction. By changing the quantity of silver particles, transitions in the rolling friction were found. Results also showed that the variations in normal load and rolling speed also affected the rolling friction behavior. Analyses of SEM and EPMA showed that the formation the transfer layer was mainly governed by the silver particle quantity, normal load and rolling speed, and this resulted in the different behavior of rolling friction. In this study, it was found that the low and stable rolling friction was resulted from the, shakedown phenomena occurred at the silver transfer layer.

• Fashion & Textile Research Journal
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• v.4 no.3
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• pp.254-260
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• 2002

The purpose of this study is to grasp the actual condition toward the clothing of senior males' and perception of male's formal wear companies for silver market through a survey targeting senior males and clothing companies. The survey was conducted targeting 196 senior males and chief-patterners of 7 companies' 10 brands. The questionnaire distributed to senior males was consisted of 22 items regarding the perception and satisfaction on clothes. And 12 items concerning the perception of senior male clothing brands and the size system was developed for clothing companies. The results of the study are as follows. The study revealed that most senior males perceived that brand clothing for them was necessary. More than half of the respondents were not satisfied with ready-made clothes. And many senior males prefer ready-made clothing when they purchase their clothes. For these reasons, senior males apparel market might be promising. Currently, the perception of male's formal wear companies on the need of brand was high. However, considering that brand launching might be difficult to be realized soon I presume that size spectrum based on body size of senior males is necessary which reflect their physical characteristics and activities.

• Journal of Fashion Business
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• v.2 no.3
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• pp.137-156
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• 1998

In this study, the researcher studied the historical background, and the traditional culture about dress and ornament of Yunnan Province of China, The results of the study are as follows. 1. Dress and personal ornaments of the Va peoples vary with the locality. Their traditional dress and adornment is characterized by those in the Ximeng area. Men usually wear black or dark blue collarless jackets and black and dark blue loose and short bagged trousers with folding waist. Women usually wear close-fitting sleeveless pullover blouses with V-shaped necks and straight skirts with patterns of red and black cross stripes. 2. Jingpo men have changed to wear shirts with button down the front and trousers. They also entwine white turbans with red bobbles on both ends, and carry diagonally long knives, firelocks and red woolen figured satchels on their shoulders. Women usually wear black velvet blouses with silver bowl-shaped ornaments and chains around collars and on the fronts. They also wear red straight skirts with overlapped slit on the right, waistbands and waist hoops made of rattan and bamboo. 3. The Naxi nationality has a long history and excellent traditional culture. In modern times, women like to wear red, blue or purple laced blouses, long double-layered pleated skirts, waistbands and embroidered shoes. They wear their hair in buns with either hats or kerchiefs over them. While working or going out, they put on their "seven-star" capes made of sheepskin and embroidered with two big circles and seven small ones, while is a symbol of their frog totem. 4. The dress and adorment of the Jinuo people is simple, elegant and has its own unique characteristics. Men usually wear white buttonless shirts with round necks and an opening on the front, knee-length bagged trousers and legging. They wear cloth turbans, earrings and also put small bamboo or silver pipes in the holes of their earlobes. Women wear short buttonless blouses with round necks and seven coloured stripes and thin tight-fitting or embroidered triangular underwear. 5. The dress and ardorment of the Benglong (De' ang) nationality has its own strong national colour. Most of the men wear jackets with buttons arranged diagonally on the front, loose, short trousers and black or white turbans. Some young men like to wear eardrops and silver necklaces. Women's dress and adornment differs according to various branches. For example, the women of the Bielie and Liang branches have their hair shaved and wear black turbans. They use large square silver tablets as buttons and wear blue or black blouses with buttons down the front. 6. Oai men usually wear trousers, white or blue cloth turbans and round-necked shirts with buttons down the front or arranged diagonally on the front. Women usually wear long straight skirt and blouses. But dress and adornment varies in regions. 7. The Bai nationality dress and adornment has unique national style. The dress fabrics are mainly cotton cloth, silk and velvet. Men usually wear red velvet vests over white shirts with buttons down the front or black velvet vests over light blue shirts. They also wear white of blue turbans and carry satchels with beautiful embroidered designs over their shoulders. Women usually wear red velvet vests over white blouses, or black vests over light-coloured blouses.

• Proceedings of the Korean Society of Tribologists and Lubrication Engineers Conference
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• 2002.05a
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• pp.45-52
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• 2002

The tribological role of mass transfer layer was studied with silver coatings under various ranges of load and sliding speed. Silver coating was performed with a functionally gradient coating method. Tests were performed in dry sliding conditions, using a ball-on-disk contact configuration, at the load of 0.0196-17.64 N and the sliding speed of 20-1,000 mm/s in ambient air. Optical microscope and EPMA analyses showed that contact surfaces were covered with the mass transfer layers of agglomerated wear particles depending upon the contact conditions, and they greatly influenced the tribological characteristics of the surfaces. However, the formation of mass transfer layer was suppressed as the sliding speed increased, and above a critical sliding speed, no mass transfer layer was able to form. For building up a general framework of tribological behavior of the coated silver films, all test data were summarized on a map whose axes are contact pressure and sliding speed.

• Tribology and Lubricants
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• v.34 no.6
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• pp.318-324
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• 2018

This study aims to visualize the friction and wear behaviors of metal coatings in real time. The main mechanism of wear is identified by observing all the processes in which wear occurs. The friction coefficients of the moments are monitored to confirm the relationship between the friction and wear characteristics of the coating. Thin Ag coatings, which are several hundred nanometers in thickness, are prepared by depositing Ag atoms on silicon substrates through a sputtering method. A pin-on-disk-type tribo-tester is installed inside a scanning electron microscope (SEM) to evaluate the friction and wear characteristics of the Ag coating. A fine diamond pin is brought into contact with the Ag coating surface, and a load of 20 mN is applied. The contact pressure is calculated to be approximately 15 GPa. The moments of wear caused by the sliding motion are visualized, and the changes in the friction characteristics according to each step of wear generation are monitored. The Ag coating can be confirmed to exhibit a wear phenomenon by gradually peeling off the surface of the coating on observing the friction and wear characteristics of the coating in real time inside the SEM. This can be explained by a typical plowing-type wear mechanism.

• Journal of Korean Society of Occupational and Environmental Hygiene
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• v.26 no.3
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• pp.367-376
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• 2016

Objectives: The production and use of nanoparticles have been increased. In 2014 Workplace Survey Results, 335 companies produce and treat nanoparticls. However, lack of data on nano-toxicity and a method for risk management and regulation on nanoparticles and the standard test method are not sufficient. Protective equipment selection guidelines for nanoparticles are not established. It is required to carry out respirator efficiency test against nanoparticles. This study was performed to evaluate filtration efficiency and manikin-based total inward leakage of particle filtering mask using in Korean country challenged with silver nanoparticles. Methods: We investigated filtration efficiency and total inward leakage of 7 respirator with silver nanoparticle. Results: The geometric mean diameters of Silver nanoparticles were 30 nm and number concentration were about $10^6{\sharp}/cm^3$. Filtration efficiency of six of the seven particle filtering masks was more than 98% and one particle filtering masks filtration efficiency was 94.9%. The filtration efficiency of particle filtering masks to 20 nm silver nanoparticels was highest. Artificial breathing machine with manikin based total inward leakage were 7.6% ~ 42.3%. Conclusions: The results of this study nano-silver filter efficiency was high but the total inward leakage was higher than filter penetration. Therefore, education on how to wear a respirator should be demanded. Especially for workers handling nanoparticles and toxic material, user seal checking and fit test must be performed.

• Textile Coloration and Finishing
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• v.23 no.1
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• pp.43-50
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• 2011

Electrically conductive yarn coated with silver particles are widely used to make smart wear but recent studies on smart fabrics are focused on measuring method of electrical characteristics and improving technologies of its electric properties. Also durability of conductive yarn with environmental change was also important work to make smart fabric. We compared resistance changes of silver coated conductive yarns under various physical and chemical conditions such as repeated strain, heat exposure and pH for basic informations on smart wear manufacturing process. And we deduct that repeated strain among the physical conditions was most effective factors on yarn resistance change and the low resistance change was observed with increasing the number of filaments in identical yarn fineness.