• Title/Summary/Keyword: Weaving Process

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A Study on Traditional Clothing Habit of West Africans (남아프리카 전통 복식문화 고찰 I)

  • 황춘섭
    • Journal of the Korean Society of Costume
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    • v.18
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    • pp.97-110
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    • 1992
  • West African's traditional looms, weaving and raw materials, structural patterning, dyeing and basic forms of dress were examines in the present study in order to deepen the appreciation of the cultural heritage of West Africa, and to make a contribution to the policy planning for export market developing The research method employed was the analysis f written materials. The study was limited to the traditional clothing habit which is preserved and practicing by them at the present day and the origin and the process of the historical development of those are not included in the scope of the present study. Followings are the results of the study: (1) They have vertical single-heddle loom horizontal or ground single-heddle loom, and double-heddle loom. The width of the cloth produced on the single-heddle loom varies about 38.5cm to 123cm and double-heddle looms all produced on the single-heddle looms all produced narrow strips of cloth varying in width from about 1.3cm to 75cm, although the average is about 10-20cm. (2) Despite the relative simplicity of the llom technology a remarkable variety of textiles are produced. (3) The most popular decorative technique in West African compound weaves is extra-weft patterning which is produced on both single-heddle and double-heddle loom by men and women weavers. Other forms of secondary patterning on textiles in West Africa are dyeing, applique, patchwork and embroidery. (4) Two basic forms of dress have spread throughout West Africa, the poncho (bpibpi) and the wrapper. Some versions of these basic forms are supplemented by western inspired trousers, shirts and blouses coupled with accessories usually complete their traditional outfits. They have a great variety of basic poncho, like as Khasa, Gandura, Tuareg-poncho, Babariga, Rigas (agba-da), Grand-boubou, Afteck, Tagua, buba, Danshike etc. Although West Africa has long been in contact with the peoples of the Nile region as well as the Maghreb and Sahara, both the boubou styles and the wrapper styles appear to have developed with a minimum of outside influence. African Islam was the principal agent for the diffusion of the boubou styles.

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Study on the Structure and the Physical Properties of Synthetic Fibers Treated with Organic Solvents (V) -The Shrinkage Behavior and Property Change of Woven Fabric Composed of Nylon 6 Filaments by Formic Acid Treatment- (용제처리에 의한 합성섬유의 구조와 물성에 관한 연구(V) -Formic Acid 처리에 의한 Nylon 6 Filament 직물의 수축거동 및 성질변화-)

  • Lee, Yang-Hun;Park, Suk-Chul
    • Textile Coloration and Finishing
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    • v.1 no.1
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    • pp.54-62
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    • 1989
  • The woven fabric composed of nylon 6 filaments was treated with aqueous solutions (20, 30, 40, 50, 60%) of formic acid at 3$0^{\circ}C$ for 10 minutes under unrestrained condition, and the shrinkage behavior and some kinds of properties were examined. The shrinkages of the constituent yarns and fabric were increased with formic acid concentration, but they were lower than that of the original filaments because of fabric-structural factors. And the shrinkage of the warp was lower than that of the weft because of the residual stress from weaving process. By the restraint forces such as fabric-structural factors and residual stress, the constituent filaments were damaged partially at 60% of formic acid concentration and the degree of damage on the warp was greater than on the weft. And though the fabric count were increased overall, the spacing between the warps was decreased prior to the weft and eliminated nearly at 60% of formic acid concentration. The thickness, tensile strength, elongation, and handle value of fabric were increased overall with formic acid concentration excepting that the tensile strength for both the warp and weft directions and the elongation for the warp direction were decreased instead by the damage of yarns. But the crease recovery was decreased except the case of the weft direction at 60% of formic acid concentration.

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A Design of XAS4B for Adding Function in BPEL using Aspect-Oriented Programming (관점지향 프로그래밍 기법을 이용한 BPEL 기능 추가를 위한 XAS4B 엔진 설계)

  • Kwak, Donggyu;Choi, Jaeyoung
    • Journal of IKEEE
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    • v.17 no.4
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    • pp.525-530
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    • 2013
  • The BPEL is standard of workflow. A domain experts not familiar with programming languages and he can write workflow. But he need new function without BPEL. We must develop or modify a BPEL engine for new functions. This method is expensive. In this paper, We propose the XAS4B documents that extend the XML schema. And We describe method that can process new function in BPEL using Aspect-Oriented Programming. AOP can cross-cut concern adding to core concern using weaving without modification. We use an existing B2J (BPEL to JAVA) engine that is transfer a BPEL's document to a JAVA program and B2J execute a JAVA program. This system adding new functions to BPEL's flow using AOP. In this system, A JAVA program is core concern and a program of new function is cross-cut concern. And this system weave a JAVA program made in B2J and a program of new function. This method provide abstract grammar for new functions. And domain experts can easily write new function is a BPEL Document and reuse new function using abstract grammar.

The Effect of Pile Length on the Handle and Physical Properties of Velvet (Velvet의 pile 길이가 촉감 및 물리적 특성에 미치는 영향)

  • 장정애;류덕환
    • Journal of the Korean Society of Clothing and Textiles
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    • v.19 no.3
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    • pp.471-482
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    • 1995
  • Using the acetate velvet and viscose velvet whose pile lengths were sheared as 1.45, 1.55, 1 65, 1.75, 1.85, 1.90mm under the condition equating the weaving process of ground fabric, the conclusions were as follows through the results of the sensory assessments estimated by women students in our university and the physical properties, H. V and T. H. V obtained by KES-F system. 1. In the sensory assessments estimated by the method of paired comparison and ranking of samples, the longer pile length was, the more the hand values of smoothness, softness, thickness, heaviness increased on the whole. 2. The H V. and T. H. V. measured by KES-F system were as follows; Kohi increased to pile length 1.85mm and then decreased a little at 1.90mm. hummer increased as pile length was longer. Fukurami increased to pile length 1.75mm and then decreased gradually as pile length was longer. Total hand value increased gradually from 1. 45mm to 1.85mm, had the top value at 1.85mm, and then decreased a little at 1.90mm. 3. In the results of summarizing $\ulcorner$the physical properties correlated closely with the H. V obtained by sensory assessments$\lrcorner$ and tithe Physical properties correlated closely with the H. V. and T. H. V obtained by KES-F systems, it showed that all the sensory properties correlated closely with compressive energy, flexural rigidity, thickness, weight and pile ratio in the former and that the physical properties correlated closely with each H V and T. H. V were different in the latter. 4. It showed that factor 1 was related to compressive energy, thickness, weight, pile ratio, factor 2 was related to recovery energy, compressive resilience, compressive index, and factor 3 was related to compressive recovery ratio in the result of factor analysis. 5. In the multiple repression analysis, the expressions of all sensory properties had compressive ratio, frictional coefficient in the regression expressions of $\ulcorner$H. V. obtained by sensory assessments$\lrcorner$, while the expressions of each H. V. and different physical properties in the regression expressions of $\ulcorner$H. V. obtained by KES-F system$\lrcorner$.

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A Bibliographical Research on Textbooks of Missionary Schools in Korea during the Opening Period (한국 개화기 기독교학교 교과서의 서지학적 연구)

  • Kim Bong-Hee
    • Journal of the Korean Society for Library and Information Science
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    • v.23
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    • pp.63-106
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    • 1992
  • The opening period of Korea was the period of modernisation amidst the conflicts between conservative and progressive sections with penetration of Western powers after 1876. With the opening modernisation accompanied modernisation of education. Missionary schools established by protestant missionaries played a crucial role in educational modernisation in the period of opening. In this article, the process of educational modernisation and the ways in which the ideas of democracy and equality were taught in the earliest schools, Paejae, Ewha, Kyoungsin and Chungsin are analysed through the method of bibliographical investigation of the textbooks used by these schools. No textbook prior to 1900 was found and in general there were no textbooks such as we know today. Usually English reading material and the Bible were the main teaching materials. Teachers kept their own copies of hand-written texts which were translated versions of American textbook. Since the same teacher taught in a number of schools, they shared same curriculum. In the early period, English Bible was taught so that English and the Bible lessons were not separated but gradually history and geography were added. Teaching of Hangul, and Korean history were added to encourage the sense of national identity and patriotism. In the case of Chungsin, for biology class, pupils were sent to Che-jung-won to learn human physiology, chemistry and physics, which shows an emphasis on science education. Vocational education was carried out; in the case of Paejae, a printing workshop was set up enabling students to earn some money at the same time as learning. Also in Kyungsin, skills of woodwork and basket weaving were stressed. Ewha also held a bazaar of the work made in sewing classes. Establishment of missionary schools brought about a great contribution in modernising Korean society and the Christian spiritual education of these schools lay the foundation for building democracy in Korea.

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Fabrication and Characterization of 3D Woven Textile Reinforced Thermoplastic Composites (3차원 직조형 열가소성수지 복합재료 제조 및 특성화)

  • 홍순곤;변준형;이상관
    • Composites Research
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    • v.16 no.2
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    • pp.33-40
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    • 2003
  • In order to overcome one of the most pronounced shortcomings of conventional laminated composites, such as the low damage tolerance due to delamination, the thermoplastic materials and 3D (three-dimensional) preforms have been utilized in the manufacture of composite materials. From the newly developed process termed as the co-braiding, hybrid yarns of the thermoplastic fibers (PEEK) and reinforcing fibers (carbon) have been fabricated. In order to further enhance the delamination suppression, through thickness fibers have been introduced by way of 3D weaving technique in the fabrication of textile preforms. The preforms have been thermoformed to make composite materials. Complete impregnation of the PEEK into the carbon fiber bundles has been confirmed. For the comparison of mechanical performance of 3D woven composites, quasi-isotropic laminates using APC-2/AS4 tapes have been fabricated. Tensile and compressive properties of both the composites have been determined. Furthermore. the open hole, impact and CAI(Compression After Impact) tests were also carried out to assess the applicability of 3D woven textile reinforced thermoplastic composites in aerospace structures.

Research on Mechanical Properties and Characteristics of Hybrid Composites for Boat (보트에 적용되는 하이브리드 복합재에 대한 기계적 특성 연구)

  • Cho, Je-Hyoung;Kim, Sung-Hoon;Yoon, Sung-Won;Ha, Jong-Rok;Kim, Myung-Hyun
    • Journal of Welding and Joining
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    • v.34 no.2
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    • pp.22-29
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    • 2016
  • Recently, Application of composite materials are increased in transport area for weight reduction. Also, Related technical developments have been implemented actively at domestic and abroad. In particular, The carbon fiber has high strength and ultra light property higher than stainless steel, aluminum, GFRP as Eco-friendly material. Carbon fiber contribute to improving the environmental effect such as fuel saving, expansion of loadage, reducing the exhaustion of carbon dioxide through the weight reduction of transport area. In addition, The carbon fiber is applied to the ship in the area of race yacht, luxury cruise boat as weight reduction and high added-value materials, but there is limited application for general boat because price of carbon fiber is very expensive. For the weight reduction of general boat hull, being used as structure materials, glass fiber and carbon fiber are applied to hull with form of hybrid composite materials, but application of domestic and research for development are incomlete. In this study, An evaluations of mechanical strength property and fatigue strength are performed on composite materials by hybrid weaving of glass fiber and carbon fiber and composite materials forming method by hybrid forming.

Environment Deterioration Characteristics of Polypropylene / Glass Fiber Composites under Moisture Absorption Environment (흡습 환경 하의 폴리프로필렌/유리 섬유 강화 복합재료의 환경 열화 특성)

  • Kim, Yun-Hae;Park, Chang-Wook;Jung, Gyung-Seok;Shin, Seok-Jin
    • Journal of Ocean Engineering and Technology
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    • v.30 no.6
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    • pp.520-525
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    • 2016
  • In this study, a mixture of polypropylene fibers and glass fibers were used to weave polypropylene/glass fiber-reinforced composite panels with characteristics such as highly elongated short fibers, high ductility, anti-fouling, and hydrophobicity as a result of a directional property. Mechanical and environmental tests were carried out with specimens fabricated with this composite panel, and its applicability to shipbuilding and ocean leisure industries was evaluated through a comparison with existing glass fiber-reinforced composite materials. The results of this experiment verified the excellence of the polypropylene/glass-mixed woven fiber-reinforced composite material compared to the existing glass fiber-reinforced composite material. However, the forming process needs to be changed to improve the weak interfacial bonding, and the properties of the composite material itself could be improved through mixed weaving with other fibers after development. Maximizing of the advantages of the polypropylene fibers and overcoming their shortcomings will improve their applicability to the shipbuilding, ocean leisure, and other industries, and increase the value of polypropylene fibers in the composite material market.

The Effect of Partnership Formation Factors on Partnership Outcomes in Textile Industries in Daegu and Gyeongbuk (대구·경북지역 섬유업체의 파트너십 형성요인이 성과에 미치는 영향)

  • Kim, Ji-Mi;Kim, Mun-Young
    • Fashion & Textile Research Journal
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    • v.13 no.3
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    • pp.373-381
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    • 2011
  • This study focused on investigating factors of partnership formation for transactional enterprises on supply chain to form a transactional relationship centering around textile industry in Daegu and Gyeongbuk. The study also investigated the effect of the factors of partnership formation for mutual cooperation among textile manufacturers in Daegu and Gyeongbuk on partnership outcomes, and finally provided basic information that help enterprises form efficient partnership relationships with related manufacturers. The sample of the study was manufacturers of yarn, dyeing, weaving, process and fabrics in Daegu and Gyeongbuk that are registered on Korea Federation of Textile Industries. The total of 81 responses were used for data analyses, and factor analyses, regression analyses, and ANOVA were utilized appling SPSS 14.0 Package. The results of the research were as follows: First, among partnership formation factors mutual confidence was highly related to presentation of exclusive technological information, efforts to keep relationships between enterprises, presentation of information, and transactions between reliable enterprises that were formed despite of any losses. Second, it was also important that enterprises exchange and communicate their business goals with partners by having common goals. Third, it was also important that problems and damages were informed to and were shared with transaction companies. If conflicts between enterprises occurred, they can be smoothly solved based on the partnership formation. Fourth, enterprises form partnerships with transaction companies by considering their operation abilities. Fifth, transactions with enterprises which are mutually reliable and have superior technology and information contributed a lot to economic outcome. Lastly, the study revealed that among partnership formation factors mutual confidence to transaction companies influenced outcome of mutual confidence profit creation, outcome of technology & information efficiency were closely related to the ability to solve generated problem, and an important factor of the outcome of technology & information profit creation was communication.

A Study on Tricot Textile Design Process using Tricot CAD Program (CAD 프로그램을 활용한 트리코트 텍스타일 디자인 개발 프로세스 연구)

  • Choi, Kyoungme;Kim, Jongjun
    • Journal of Fashion Business
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    • v.19 no.5
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    • pp.1-16
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    • 2015
  • The appearances and geometry structures of knitted fabrics have important effects on their functions as textile fabrics. Structural design of the woven fabric, prior to the manufacturing processes in the weaving mill, often leads to a similar predictable appearance in the final outcome with the corresponding weave design. The increase of the employment of elastic textile yarns in knitting fabrics for comfort stretch or outdoor sports wear knit products has, however, resulted in difficulties in predicting the final appearance of the knit structure design. Due to the stretchability and exceptional recovery behavior of the elastic yarns such as polyurethane elastomeric yarns, the appearance of the final product often differs from the initial knit design. At textile CAD program for preparing tricot knit designs has been employed in this study to predict the two dimensional appearance of the design. The similarities between the designs and corresponding knit products seem to be acceptable for the two-dimensional textile CAD program in this study. However, when elastomeric yarns are partially employed in the polyester filament tricot product, a considerable amount of departure from the design is apparent due to the constriction and/or deformation of property differences in the elastomeric yarns and polyester filament yarns. Therefore, another purpose of this study is to measure the departure of the final tricot product from the initial tricot design, especially in the case employing elastomeric yarns in the knit structure together with regular polyester filament yarns. For measuring the three-dimensional departure, a 3D scanning system has been used for the mesh reconstruction of the fabric specimen. Hopefully, the result from this study will be used as a guide to modify and improve the current textile CAD program proposed for the two-dimensional simulation of the tricot.