• Title/Summary/Keyword: damage of textiles

Search Result 96, Processing Time 0.022 seconds

The Characteristics of Junk Art Design in Modern Hairstyle and Clothing (현대 헤어스타일과 의상에 나타난 Junk Art적 디자인의 특성)

  • Lee, Su-In
    • Korean Journal of Human Ecology
    • /
    • v.8 no.3
    • /
    • pp.525-534
    • /
    • 1999
  • The purpose of this study is to analize in the focus on junk art the relation between hairstyle and dress, and fine art which is one of the driving force of fashion change. The method of this study is to take into theoretically consideration junk art in the trend of art and to take into documental concideration the trend of junk art reflected on hairsyyle and dress. The results are as following. First, there's a trait of poverty. This means using something deserted in our life and expands a new expression world which introduces a new, poor beauty, refusing a existent, rich and arranged one. Second, there's a trait of machinery. In Junk Art, according to the appearance of the beauty of machines, it creates and introduces a mechanic aesthetics as a new- formative art by using industrial by-product. Third, there's a trait of nature. By Junk Art, there appears a trial to restore nature which has been neglected under the name of developing science technology. This expresses natural junk factor by emphasizing the nature itself using natural by-products. The Junk Art has influence on hairstyle and clothing and expands the expression world by some new ways and recognition about the benefaction and the damage of modern civilization.

  • PDF

Analysis of the Gain Characteristic in LLCC Resonant Converter for Plasma Power Supply (플라즈마 전원장치용 LLCC 공진컨버터의 이득 특성 분석)

  • Kwon, Min-Jun;Kim, Tae-Hun;Lee, Woo-Cheol
    • The Transactions of The Korean Institute of Electrical Engineers
    • /
    • v.65 no.12
    • /
    • pp.1992-1999
    • /
    • 2016
  • The plasma process is applied to various industrial fields such as high-tech IT industry, textiles and medical. Therefore, there is increasing interest in the plasma power supply, and demand for power devices of high efficiency and high power density is increased. Plasma power supply for process must solve the arc problem, when the plasma is unstable. The output capacitor is closely related to the arc problem. If the output capacitor is smaller, the damage from the arc problem is reduced. However, the small value of the output capacitor affects the operating characteristics of the power supply. In this paper, a LLC resonant converter is adopted, because it can achieve high efficiency and power density in the plasma DC power supply. However, due to the small value of the output capacitor, the converter is operated as a LLCC resonant converter. Therefore, a gain characteristic of LLCC resonant converter is analyzed by using the FHA (First Harmonic Approximation) in plasma power supply. Simulation and experimental results are presented to verify the characteristic analysis of LLCC Resonant Converter.

A Study on the Alkaline Degradation Properties of Silk Fabrics for Costume Heritage Restoration (유물 복원을 위한 실크 직물의 알칼리에 의한 열화 특성 연구)

  • Jeon Cho-Hyun;Kwon Young-Suk;Lee Sang-Joon;Cho Hyun-Hok
    • Textile Coloration and Finishing
    • /
    • v.17 no.4 s.83
    • /
    • pp.41-47
    • /
    • 2005
  • Costume heritages of an excavated silk fabrics should be preserved without damage. In order to artificially restore the excavated silk fabrics, alkaline aqueous solution, as a simulated corpse, and two kinds of silk fabrics were used. Two kinds of silk fabrics were treated by aqueous alkaline solution according to strength retention value(100, 80, 60, 40, 20$\%$). The fine structure and physical properties of alkaline treated silk fabrics were investigated with various techniques such as wide-angle X-ray diffraction, tensile test, weight loss, shrinkage, SEM. and yellowness. As the alkaline treatment time increased tensile strength of silk fabrics decreased. However, weight loss and shrinkage slightly increased. The diffraction intensity of $\beta-form$ crystal declined and $\alpha-form$ crystal diffraction intensity disappeared with the treatment.

The Preservation Treatment of Unlined Silk Jeogori Found at the Wooden Munsudongja Buddha Statue in the Sangwon Temple (상원사목조문수동자좌상 복장 명주홑저고리의 보존처리)

  • Kwon, Young-Suk;Baek, Young-Mee
    • Fashion & Textile Research Journal
    • /
    • v.8 no.6
    • /
    • pp.634-638
    • /
    • 2006
  • The significance of this study is the demonstration of a new method of preservation procedure for national-treasure-class cultural-assets by examining the characteristics of the Jeogori relic, presumed to be that of King SeJo, and validating the preservation process. This Jergori as well as the wooden Munsu-donja Buddha statue from which they were found are designated as national treasure. The Jeogori relic is made of light silk and dimensions mark 77 cm in length, 67 cm in width, and 94 cm in sleeve length. It is a typical Jeogori worn in the Chosun Dynasty. Preservation procedure was in the following order: Removing dust and pollutants by vacuum, washing, removing creases, reinforcing the clothes, settling at paulownia backboard, and packing. Storage and exhibition of remains was executed with as minimal folding as possible, and microbiological damage prevention was performed by dyeing antibacterial treatment with eugenol onto supporting cloth. The relic, conservatively treated in accordance with the above procedure, is currently kept at the storage facility of the citadel Museum in the Woljeong Temple. It is displayed annually to the general public for approximately two weeks.

Conservation of Textiles and Costumes of Cheonngyeongunju (a princess)(II) (청연군주묘(淸衍郡主墓) 출토복식(出土服飾)의 보존(II))

  • Kim, Jooyoung;Lee, Jihyun;Park, Seungwon
    • Conservation Science in Museum
    • /
    • v.11
    • /
    • pp.17-30
    • /
    • 2010
  • Here is an introduction of the conservation process and storing method of 26 garments for exhibition among the excavated garments of Cheonngyeongunju(a princess) preserved in the National Museum of Korea. Before processing, the artifacts were investigated to find out the type of material and the damaged parts, and then surface and wet cleaning were conducted. After that, it were dried and fixed while held by hand for stability of the artifacts. When stored, the artifact was folded minimally in large parts to prevent damage and placed in a neutral box with buffers in between.

A Study on the Washing and Satisfaction of Newborn Clothing - Focused on Innerwear - (신생아복 세탁 실태 및 만족도에 관한 연구 -배냇저고리 중심으로-)

  • Roh, Eui Kyung
    • Fashion & Textile Research Journal
    • /
    • v.21 no.2
    • /
    • pp.237-243
    • /
    • 2019
  • This study analyzed satisfaction with and washing of newborn clothing (especially the innerwear washing behaviors) which are considered to be the most basic items among newborn clothing.The survey was conducted on mothers with children under 24 months old. Using an average of 6.7 innerwear items that were changed average 2.3 times a day with baby formula and breast milk representing the main contaminants. When washing clothes for a newborn, respondents were mainly concerned with: rinsing residual detergent, removing stains and contaminants, and sterilization and disinfection. Items were washed by a laundry label to prevent clothes damage. A baby-friendly or environmentally-friendly detergent was used to wash before being worn after purchase was separated and washed in various washing courses of the washing machine every day, boiled, rinsed an average 3.6 times, and dried mainly in the sun. Environmentally friendly cotton (59.5%) and organic cotton (41.6%) products were mainly used; however, items were washed separately from regular laundry. Respondents were satisfied with methods of washing. Consumers are concerned about washing because they think that washing affects a newborn's health. Therefore, it is necessary to provide consumers with appropriate information on washing and establish regulations for the use of harmful substances in newborn clothing and detergents.

Fabrication of Electrospun Juniperus Chinensis Extracts loaded PVA Nanofibers (향나무 추출물을 함유하는 PVA 나노섬유 제조)

  • Kim, Jeong-Hwa;Lee, Jung-Soon
    • Science of Emotion and Sensibility
    • /
    • v.19 no.2
    • /
    • pp.35-42
    • /
    • 2016
  • Electrospinning is a simple and effective process for producing nanofiber with diameter range from nanometers to micrometers which have high specific surface area. Hence, medicated nanofibers can be readily fabricated using a solution containing a mixture of a plant-extracts and a polymer. It has proved that Juniperus Chinensis can be effectively used for the prevention of UV and SLS-induced advers skin reaction such as radical production, inflammation and skin cell damage. It also found that Juniperus Chinensis has efficient ingredient of antifungal activity and house dust mite repellent effect. The fabrication of PVA nanofibers containing Juniperus Chinensis extracts by electrospinning has been studied. PVA/Juniperus Chinensis extracts composite nanofibers were produced at different Juniperus Chinensis concentrations (0.25, 0.5, 1.5 wt. %). The parameters of electrospinning including polymer contents, voltage and tip-to-collector distance (TCD) were optimized for fabrication process. The study show that 12 wt. % PVA, 10kV applied voltage and TCD 10~20 cm are the best condition to obtain uniform PVA/Juniperus Chinensis extracts composite nanofibers. Morphologies of the electrospun composite nanofiber were observed by using a field emission scanning electron microscope. It has been found that the average diameters of fibers increased by the adding of Juniperus Chinensis extracts. As the results, PVA/Juniperus Chinensis extracts composite nanofibers having a diameter in the range from 310~360 nm were successfully prepared via an electrospinning.

A Study on the Present Condition and Improvement of Cultural Heritage Management in Seoul - Based on the Results of Regular Surveys (2016~2018) - (서울특별시 지정문화재 관리 현황 진단 및 개선방안 연구 - 정기조사(2016~2018) 결과를 중심으로 -)

  • Cho, Hong-seok;Suh, Hyun-jung;Kim, Ye-rin;Kim, Dong-cheon
    • Korean Journal of Heritage: History & Science
    • /
    • v.52 no.2
    • /
    • pp.80-105
    • /
    • 2019
  • With the increasing complexity and irregularity of disaster types, the need for cultural asset preservation and management from a proactive perspective has increased as a number of cultural properties have been destroyed and damaged by various natural and humanistic factors. In consideration of these circumstances, the Cultural Heritage Administration enacted an Act in December 2005 to enforce the regular commission of surveys for the systematic preservation and management of cultural assets, and through a recent revision of this Act, the investigation cycle has been reduced from five to three years, and the object of regular inspections has been expanded to cover registered cultural properties. According to the ordinance, a periodic survey of city- or province-designated heritage is to be carried out mainly by metropolitan and provincial governments. The Seoul Metropolitan Government prepared a legal basis for commissioning regular surveys under the Seoul Special City Cultural Properties Protection Ordinance 2008 and, in recognition of the importance of preventive management due to the large number of cultural assets located in the city center and the high demand for visits, conducted regular surveys of the entire city-designated cultural assets from 2016 to 2018. Upon the first survey being completed, it was considered necessary to review the policy effectiveness of the system and to conduct a comprehensive review of the results of the regular surveys that had been carried out to enhance the management of cultural assets. Therefore, the present study examined the comprehensive management status of the cultural assets designated by the Seoul Metropolitan Government for three years (2016-2018), assessing the performance and identifying limitations. Additionally, ways to improve it were sought, and a DB establishment plan for the establishment of an integrated management system under the auspices of the Seoul Metropolitan Government was proposed. Specifically, survey forms were administered under the Guidelines for the Operation of Periodic Surveys of National Designated Cultural Assets; however, the types of survey forms were reclassified and further subdivided in consideration of the characteristics of the designated cultural assets, and manuals were developed for consistent and specific information technologies in respect of the scope and manner of the survey. Based on this analysis, it was confirmed that 401 cases (77.0%) out of 521 cases were generally well preserved; however, 102 cases (19.6%) were found to require special measures such as attention, precision diagnosis, and repair. Meanwhile, there were 18 cases (3.4%) of unsurveyed cultural assets. These were inaccessible to the investigation at this time due to reasons such as unknown location or closure to the public. Regarding the specific types of cultural assets, among a total of 171 cultural real estate properties, 63 cases (36.8%) of structural damage were caused by the failure and elimination of members, and 73 cases (42.7%) of surface area damage were the result of biological damage. Almost all plants and geological earth and scenic spots were well preserved. In the case of movable cultural assets, 25 cases (7.1%) among 350 cases were found to have changed location, and structural damage and surface area damage was found according to specific material properties, excluding ceramics. In particular, papers, textiles, and leather goods, with material properties that are vulnerable to damage, were found to have greater damage than those of other materials because they were owned and managed by individuals and temples. Thus, it has been confirmed that more proactive management is needed. Accordingly, an action plan for the comprehensive preservation and management status check shall be developed according to management status and urgency, and the project promotion plan and the focus management target should be selected and managed first. In particular, concerning movable cultural assets, there have been some cases in which new locations have gone unreported after changes in ownership (management); therefore, a new system is required to strengthen the obligation to report changes in ownership (management) or location. Based on the current status diagnosis and improvement measures, it is expected that the foundation of a proactive and efficient cultural asset management system can be realized through the establishment of an effective mid- to long-term database of the integrated management system pursued by the Seoul Metropolitan Government.

Konjac Glucomannan Derived Carbon Aerogels for Multifunctional Applications

  • Lian, Jie;Li, Jiwei;Wang, Liang;Cheng, Ru;Tian, Xiuquan;Li, Xue;Zhou, Jian;Duan, Tao;Zhu, Wenkun
    • Nano
    • /
    • v.13 no.10
    • /
    • pp.1850113.1-1850113.11
    • /
    • 2018
  • Environmental and energy issues have always been a hot topic of global research. Oil leakage has caused great damage to the environment, affecting a wide area and it is difficult to clean up. In most cases, carbon-based adsorbents are typically utilized to remove oil spills because of their economic benefits and high adsorbent efficiency. At the same time, its excellent material properties can also be used for the preparation of supercapacitors. In this paper, the carbon aerogels were prepared by the one-step method. The prepared materials endowed a 3D network structure with a huge number of micropores and mesoporous, and the material is light-weight, stable, hydrophobic and has affinity for oil (17.02 g/g) to the KGM carbon aerogel. Through the physicchemical characterization, the KGM carbon aerogel shows specific surface area is $689m^2/g$, high water contact angle ($136.64^{\circ}$) and excellent reusability (more than 15 cycle times). In addition, we also discussed the electrochemical properties of the material and obtained the specific electrical capacity of 139 F/g under the condition of 1 A/g.

The Conservation Treatment for the Important Folklore Materials-Clothes (중요민속자료(복식)의 보존처리)

  • Han, Sung-Hee;Lee, Kyu-Shik
    • 보존과학연구
    • /
    • s.14
    • /
    • pp.94-108
    • /
    • 1993
  • The cultural properties of cloth are of animal orgin (silk), or of vegetable orgin(cotton, hemp, ramie). As clothes are of an orginic material, they were subjected to damage by chemical, phisigical or biological factors, viz, moulds insects, lights, humidity and temperature changes, etc. And these factors promote that clothes generally result from various types of deterioration. In 1992, We were performed the conservation treatments for total 9 pieces of cloth, such as 3 pieces of General PAK SHIN-RYONG(Important Folklore Material No.110) 3 pieces of Madam Jung(Important Folklore Material No.115) and 1 piece of King Se-jo(Important Folklore Material No.219). The procedure of the conservation treatment for clothes describe the following below. 1) The washing and dry-cleaning to remove the contaminated substances from cloth was used 0.2% stearyl potassium soap solution and the mixture solution compound of n-Hexane, C6H14. and n-Decane, C10H22. And after the washing and dry-cleaning, the dry of clothes was carried out in a warm condition. These steps were repeated in 2 times over for each cloth. 2) The repair of clothes was attached the similar textiles to stronger fabric linings by needlework.3) The reprodution was made for cloth of King Se-jo to equalize the type, color, quality and skill of materials. 4) After these above procedures, all clothes fumigated to prevent the biodeterioration by using the mixed gas of methyl bromide and ethylene oxide as insecticide and fungicide. 5) Finally for the purpose to keep in a safety long-term condition, the treated clothes sealed with Biaxially Oriented Polyvinylacohol Film(BO-PVA film) and Helium, purity 99.999%, filled up in sealed BO-PVA film bag.

  • PDF