• Journal of the Korean Chemical Society
• /
• v.31 no.3
• /
• pp.287-291
• /
• 1987

The composite mole fraction of monomers in PVA-PVFAc copolymer could be calculated from the analysis of trifluoroacetyl group by the pyrolysis gas chromatography without breaking of C-F bonds in polymer. A linearity between trifluoroacetyl peak areas in pyrogram and sample weights was obtained within the range below 3mg. The data of trifluoroacetyl contents derived from gas chromatogram of copolymers with various D.S. were in good agreement with results by the Specific Ionmeter.

• Journal of the Korean Home Economics Association
• /
• v.43 no.5 s.207
• /
• pp.249-265
• /
• 2005

Creative application in elaborate techniques can not only make design constructs productive but also can widen designers' figurative perspectives. There are many techniques applied in fashion design such as folds, patchworks, embroidery, dyeing, industrial treatment, etc. In particular, folds play a significant part in enlightening clothes uniqueness in contemporary fashion design. The primary purpose of this study was to make new suggestion for the production of high value-added fashion goods by reviewing and synthesizing fold expressions. Diverse fold designs were retrieved through a comprehensive literature review on topic-related books, fashion dictionaries, and fashion encyclopedias. Significant cases of fashion designs using folds were retrieved from fashion magazines uploaded from 2000. There are three types of folds applied in fashion design. (1) The folds by needlework like tucks, smocking, shirring, and trimming type folds(ruffle, frill, flounce, and ruche). (2) The folds by chemical or mechanical treatment like permanent pleats and crinkle. (3) The folds of formative dress like drape. From a comprehensive review of the folds design cases after 2000, the following characteristics of folds design were identified: (1) a highlighted role in the whole, (2) mixture and deformation of techniques and materials, (3) 3-D surface effect, (4) creation of a unique figurative beauty, and (5) expression of diverse fashion image.

• Journal of the Korean Society of Clothing and Textiles
• /
• v.21 no.7
• /
• pp.1236-1246
• /
• 1997

본 연구는 1960년대 미국의 청년층에 의해 일어난 반문화적인 현상으로 인식되어온 동양문화의 도입, 특히, 인도문화가 청년문화 전반에 끼친 영향과 더 나아가 이러한 환경변화가 미국대학복식에 미친 영향을 알아보고자 하였다. 1960년대 미국청년문화에 나타난 인도 문화의 영향은 철학, 종교 대중음악 등 다방면에서 보여졌으며, 또한 복식의 형태에도 반영되었다. 복식학자들에 의한 단편적인 추론에만 그쳤던 이러한 복식의 현상을 본 연구는 문헌조사에 의한 객관적이고 과학적인 연구방법을 이용하여 입증하고자 시도하였다. Washington, D.C.와 San Francisco/Berkeley 지역에 위치한 7개의 대학교에서 1960년 부터 1975년 사이에 발행한 대학신문에서 연구자료를 수집하여, 체계적인 자료수집 및 분석을 위한 연구방법으로 사회과학분야에서 주로 사용되어 온 Content Analysis Method를 이용하였다. Content Analysis Method는 예비연구(preliminary study)의 결과를 기초로 인도 복식의 영향을 받은 미국대학복식의 형태를 크게 의복(clothes), 장신구(accessories), 직물(fabrics) 등의 3개 category로 분류하여, 다시 13개의 subcategory(kurta, midriff top, Nehru jacket/suit, Indian shirt/blouse/smock/dress, sari, Indian jewelry, Indian sandal, Indian urn, Indian bedspread. Indian embroidery, Indian print, madras, tie-dye)로 세분하였다. 복식의 형태에 의한 분류외에도, 대학신문의 광고나 기사에 실린 내용을 인도복식이 미친 엮향의 정보를 알아보기 위하여 Attribution information을 3 category(originated, attributed, connotated)로 분류하여 조사하였다. 더불어, 같은 문헌에 나타난 인도에서 도입된 4개의 주된 종교(Transcendental Meditation, Hare Krishna, Yoga. Divine Light Mission)의 빈도도 조사하였다. 본 연구의 결과는 13개의 가인도복식스타일(Indian style)의 Frequency(빈도), Attribution, Duration(기간)의 내응을 포함하는 표로 요약되었다. 또한, 연도별로 Indian style이 나타난 빈도의 Duration(기간)의 내용을 포함하는 표로 요약되었다. 또한, 연도별로 Indian style이 나타난 빈도의 합계와 연도를 축으로 하는 막대그래프를 작성하고 이 그래프에 Attribution Category의 내용도 함께 볼 수 있도록 정리하였다. 대학복식에 나타난 인도의 영향은 여성복식과 남성복식에 있어서 서로 유사점과 차이점이 보이는데, 인도의 영향이 여성복식에 있어서 그 빈도가 더 높고, 종류가 더 다양함을 볼 수 있다. 여성복식에 있어서는 12가지의 다양한 인도복식스타일이 나타났으며, 그중 가장 많이 보이는 스타일은 Indian Shirt/Blouse/Smock/ Dress이며, 그 뒤를 이어 Madras, Indian lowery등을 볼 수 있다. 남성복식애 나타난 7가지의 스타일 중에는 Madras가 가장 빈도가 높으며 그외의 스타일들은 그 빈도가 매우 낮음을 볼 수 있다. 인도의 영향의 정도 (Attribution Categories) 있어서는 여성과 남성복식 모두에 있어서 인도에서 직접 수입된(originated) item이 각각 전체의 90%와 81%를 차지하여, 인도복식의 영향은 받았으나 미국내에서 제작된(attributed and connotated) item 보다 휠씬 더 많은 수를 보였다. 인도복식스타일이 가장 많이 보여지는 시기(Peak period)는 여성과 남성복식에 있어 모두 1968년에서 1971년 사이로 공통점을 보였다. 이러한 결과는 미국 청년 문화에 전반적으로 나타났던 반문화적 현상과 동일한 시기로서, 이는 사회 현상이 복식에도 반영되고 있음을 알 수 있다. 또한 같은 시기의 대학신문에 나타난 인도에서 도입된 4 개의 종교 역시 1960년대 후반 부터 그 빈도가 증가하여 1970년에 리고의 빈도가나타낭으로서 앞의 결과를 뒷받침해 주고 있다. 본 연구에서는 Washington,D.C.와 San Francisco/Berkeley 지역의 대학신문만을 연구자료로 사용하였으나 앞으로는 새로운 연구 자료의 발굴과 연구대상을 타 지역으로 확대시키므로서 미국내 전체의 청년복식에 대한 이해를 증가시킬 수 있을 것이다.

• Korean Journal of Human Ecology
• /
• v.23 no.4
• /
• pp.665-680
• /
• 2014

The purpose of this study was to develop the construction process of orthopedic compression garments (OCG) for balancing of the left and right lumbar muscle power and strength to prevent low back pain. One male subject having low back pain was involved for investigating of the lumbar muscle power. EMG (Telemyo DTS2, Noraxon, U.S.A) was measured with/ without 3 types of waist assistant belt around the waist area of the subject. Based on the electromyogram value of left and right body, OCG were constructed as follows. Firstly, stretchable t-shirts type with supportive waist belt was selected for the convenience of wearing and laundering the OCG. The design lines of the front and back waist parts were created depending on the anatomy of the torso. Secondly, 3D pattern was developed using 3D Clo, RapidForm XOR, 2C-AN, and Yuka CAD program to increase the fit of the OCG. Finally, stretchable power-net was layered as linings in two ways, a single lining and double layered linings, and evaluated measuring lumbar muscle EMG by five subjects with low back pain. As the results, they were effective to balance the left and right lumbar muscle power and strength. Also the OCG with the double layered power-net lining was superior to the one layered lining in terms of fit and comfort.

• Journal of the Korea Fashion and Costume Design Association
• /
• v.17 no.4
• /
• pp.55-66
• /
• 2015

The objective of this study is to propose a method by which movement fitness can be evaluated using a three-dimensional virtual garment simulation program. To this end, five types of jean pants for men were evaluated on the program by setting the avatars to make particular movements to examine the level of pressure on each body part. To verify whether the clothing pressure measurement produces valid and reliable results, virtual garment simulation program was utilized. The results indicated that there were significant differences in the levels of pressure on body parts depending on the type of test garment and motion. In addition, the clothing pressure measurement results were in line with the appearance evaluation results suggested by a previous study. Based on this set of results, the nomological validity of the clothing pressure measurement program used in this study was verified. Moreover, we employed an appearance evaluation along with the clothing pressure measurement to verify the reliability of the program; there was a high correlation between clothing pressure measurements and appearance evaluation measurements, indicating that measuring clothing pressures may well compensate for the limitations of appearance evaluation. We expect the results of this study to make valuable contributions in facilitating the digitalization of the fashion industry. Furthermore, this study also is significant in that it has suggested 3D virtual fitting programs as a solution to the long-criticized problem related to the evaluation of movement fitness in existing virtual garment simulation programs.

• Journal of the Korea Fashion and Costume Design Association
• /
• v.19 no.4
• /
• pp.93-104
• /
• 2017

This study is a basic study to develop shoe last design technology to enhance and revitalize the competitiveness of the handmade shoes. In-depth interviews were conducted with four manufacturers in Seongsu-dong to identify the production status and design technology of shoe lasts. The result of the research is as follows. Firstly, shoe lasts for adults are produced at intervals of 5mm between 245mm-285mm for men's shoes, and between 220-260mm for women's shoes. The production rate of women's shoes was high in the order of general type, boot type, and sandal type while men's shoes mainly produce general type. Secondly, the master last size and ball girth rating for men's and women's shoes were analyzed to EE-EEE grade at 260mm and D grade at 235mm. The length of the master last for men's shoes is 276-290mm, the heel width is 60-65mm, the ball width is 88-90mm, the ball girth is 250mm, and the waist girth is 248mm. The length of the master shoe last for women's shoes is 236-245 mm, the heel width is 50-55mm, the ball width is 78-80mm, the ball girth is 211~213mm, and the waist girth is 213~215mm. Thirdly, the last grading deviation is 5mm in length, the heel width is 0.5mm, the ball girth is 3.5mm, and the ball with is 1.2mm. The ball girth dimensions of Oxford type, slip-on type, and sneakers type are made at 250mm, 248mm, and 245mm for men's shoes. For women's shoes, the ball girth dimensions of pump type, loafer & boot type, and sandal type are made at 211~213mm, 214~215mm, and 211mm. Fourthly, t+he construction of the automation system is insufficient and almost completely depends on manual production.

• Science of Emotion and Sensibility
• /
• v.9 no.1
• /
• pp.39-48
• /
• 2006

This study was carried out to investigate sound sensation of Korean traditional silk fabrics with similar sound pressure levels (SPL) and to identify secondary physical factors excluding SPL which determine sound sensation of the fabrics. Sounds of the silk fabrics tended to be perceived differently from one another as for some of sensation such as clearness ant roughness. They were felt more strongly in aspects of loudness, roughness, and highness than of softness, sharpness, clearness, and pleasantness. Subjective clearness, roughness, and highness were significantly correlated with some of sound parameters including roughness(z), ${\Delta}L,\;and\;{\Delta}f$. Especially, both of clearness and roughness which were varied among the fabrics were found as determined by ${\Delta}L$. This result means that ${\Delta}L$ as well as roughness(z) and ${\Delta}f$ could be utilized secondary to SPL in order to satisfy some of human sensibility for sound from traditional silk fabrics without variation of physical loudness.

• Textile Coloration and Finishing
• /
• v.18 no.6 s.91
• /
• pp.57-62
• /
• 2006

The functional non-woven fabrics have been applied in various industry fields, such as clothing, hygiene, environment, medical and so forth. The functional non-woven fabrics for wet tissue were manufactured by meltblown and wet tissue finishing processes. The wet tissue was contained the various composition substances such as Benzalkonium Chloride(0.2292g), lodo-2-propynyl Butyl carbamate(0.0069g) and 5-Chloro-2-Methyl-Isothiazolin -3-one, 2-Methyl-Isothiazolin-3-one (0.0034g) with purified water (999.76g). In this study, the functional wet tissue based on meltblown nonwovens has been applied in dairy cattle for prevention on cow mastitis. Mastitis is the most costly disease results in lost milk production, decreased milk quality, milk discard, early culling of cows, drug costs and labor costs in dairy cattle. Therefore, this study was investigated to evaluate clinical effect of the functional wet tissue in mastitis control. The results, after experiment the functional wet tissue used group, demonstrated that the infection rate, cure rate and mean somatic cell count(SCC) were significantly decreased as compared to the control group.

• The Research Journal of the Costume Culture
• /
• v.8 no.1
• /
• pp.30-39
• /
• 2000

The purpose of this study were to 1) identify types and levels of production environments, 2) classify apparel manufacturers based on production environments and 3) investigate relationship between characteristics of apparel manufacturers and production environment. Apparel manufacturer's characteristics included product line and the number of employees. For this study, the questionnaires were administered to 215 apparel manufacturers in seoul and Kyung-gi region from Feb. to Mar. 1998. Employing a sample of 201, data were analyzed by factor analysis, descriptive statistics, cluster analysis, cluster analysis, discriminant Analysis, and multivariate analysis of variance. The following are the results of this study : 1. The production environment was identified as three types such as complexity of product environment, uncertainty of demand/supply environment and uncertainty of worker environment. 2. Based on three types of the production environment, apparel manufacturers were classified into stable group, uncertain group and complicated group. 3. With respect to product line, men's wear manufacturers were lied the most high complexity of product environment, casual wear and knit wear were lied the most frequently uncertainty of worker environment. With respect to the number employees, apparel manufacturers comprising 50∼99 employees were lied the most high complexity of product environment, while those comprising 100∼299 employees the most high demand/supply environment.

• Journal of the Microelectronics and Packaging Society
• /
• v.30 no.3
• /
• pp.20-34
• /
• 2023

Single or multi-layered two-dimensional (2D) materials, with thicknesses in the order of a few nanometers, have garnered substantial attention across diverse research domains owing to their distinct properties, including electrical conductivity, flexibility, and optical transparency. These materials are frequently subjected to repetitive mechanical actions in applications like electronic skin (E-Skin) and smart textiles. Moreover, they are often exposed to external factors like temperature, humidity, and pressure, which can lead to a deterioration in component durability and lifespan. Consequently, significant research efforts are directed towards developing self-healing properties in these components. Notably, recent investigations have revealed promising outcomes in the field of self-healing composite materials, with Ti₃Ci₂Ti_x MXene being a prominent component among the myriad of available 2D materials. In this paper, we aim to introduce various synthesis methods and characteristics of Ti₃Ci₂Ti_x MXene, followed by an exploration of self-healing application technologies based on Ti₃Ci₂Ti_x MXene.