• Title/Summary/Keyword: Textile Material

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The Synthesis of New Leuco Squarylium Dyes

  • Park, Soo-Youl;Jun, Kun;Shin, Seung-Rim;Shin, Jong-Il
    • Textile Coloration and Finishing
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    • v.19 no.5
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    • pp.24-29
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    • 2007
  • It is well known that certain classes of dye are reducible to stable colorless leuco compounds, which can be oxidized in air back to the colored species. We now reported that bis(4-dialkylaminophenyl)squaraine dyes are readily reduced in solution by borohydride to give alkali soluble leuco compound, which exists in the 3-hydroxy 2,4-bis(4-dialkylaminophenyl)cyclobuten-one. New alkylamine leuco compounds were synthesized by the reaction of leuco chloro-squaraine with alkylamine derivatives. The leuco compounds are easily isolated and can be air oxidized back to the squaraine dyes. These dyes have many technical application. e.g. in xerography, solar cell, optical recording material, redox indicators, and enzyme assays.

History of Korean Starch Industry (한국의 녹말 산업 발달사)

  • Park, Yeon-Sung
    • Food Science and Industry
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    • v.51 no.1
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    • pp.45-60
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    • 2018
  • The starch industry in Korea had been based on sweet potato and potato for long time to produce starches which were used for mainly starch noodle such as cellophane noodle. Because of the poor storage stability, high price, and fluctuation of production by year and year of potatoes, the raw material for the production of starch had been changed to corn in 1970s. Along with this, the mass production system had been established, which enabled the production of various starch-related products including modified starches for food, textile, paper, and other industrial uses, starch sweetners, high fructose corn syrup, and gelatinized starch. In this paper, a brief background of corn industry in Korea has been described. The production of starch from corn has been emphasized and the future of corn industry in relation with GMO has been suggested.

A new constitutive model to predict effective elastic properties of plain weave fabric composites

  • Mazaheri, Amir H.;Taheri-behrooz, Fathollah
    • Structural Engineering and Mechanics
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    • v.77 no.5
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    • pp.651-659
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    • 2021
  • In this study, a new constitutive model has been developed to predict the elastic behavior of plain weave textile composites, using the finite element (FE) method. The geometric conditions and basic assumptions of this model are based on the basics of a continuum theory developed for the plane curved composites. In this model, the mechanical properties of the weave region and pure matrix region is calculated separately and then imported for the FE analysis. This new constitutive model is used to implement the mechanical properties of weave region in the representative volume element (RVE). The constitutive relations are implemented as user-material subroutine code (UMAT) in ABAQUS® FE software. The results of FE analysis have been compared with experimental results and other data available in the literature. These comparisons confirmed the capability of the presented model for the prediction of effective elastic properties of plain weave fabric composites.

Experimental investigation on tensile testing of natural raw fibres using an improved single fibre test method

  • Ravi Kumar;Shaik M. Subhani;Bonda A.G. Yuvaraju
    • Steel and Composite Structures
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    • v.53 no.4
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    • pp.481-490
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    • 2024
  • In the modern era, the world is grappling with unprecedented challenges posed by environmental pollution. International agencies are urging scientists and material engineers to seek out green materials and structures as solutions to this problem. Composites derived from renewable sources, such as plant-based and vegetable fibres, are increasingly being utilized in the interior composite components of automobiles, aircraft, and building construction. This work introduces an improved Single Fibre Tensile Test (SFTT) for natural fibres, which are often irregular in shape and non-uniform along their length. Conventional methods, which determine the fibre cross-section by measuring the diameter using optical microscopy, yield inaccurate properties with large standard deviations (SD). The proposed new SFTT method, based on standards set by the American Society of Textile Manufacturing, provides a more accurate assessment of the mechanical performance of fibres. Using this approach, the tensile strength of various single fibres, yarns, and fabrics was measured with an SD of less than 8%.

A Study on Black Leather Jacket in Youth Sub-Culture (청년하위문화에 나타난 Black Leather Jacket 연구)

  • Kim Ji-Seon;Yum Hae-Jung
    • Journal of the Korean Society of Costume
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    • v.55 no.2 s.92
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    • pp.92-104
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    • 2005
  • This study aimed to reveal the concept and background of emergence of black leather jacket that began appearing in full-scale among youth sub-culture from 1950's, and to research its styles and aesthetic features on the basis of that. The researcher has intended to a theoretical frame to recreate black leather jacket which has been developing in youth sub-culture style as a resource of new design in modern fashion trend through this study There are 5 styles of black leather jacket in youth sub-culture after 1950's. Firstly, biker style black leather jacket showed ruined war heroes substituting for military uniform. Secondly, rocker style black leather jacket brought the conversion in definition of masculinity. Thirdly, greaser style black leather jacket showed the beauty of uncleanness expressing resistance and violence with tattered dirty materials and excessive metal ornaments. Fourthly, headbanger style black leather jacket was prominent in various and compound decoration due to combination of rocker and hippie features. fifthly, punk style black leather jacket was influenced greatly by Sex Pistols. There are broadly three ecstatic features oi black leather jacket among youth sub-culture. With regard to displaying terrorism, black leather jacket displayed threatening aspects with black color, formative beauty of inverted triangle, additional decoration, and animal & brutal feelings. Paradoxical trophyism showed Nihilism, disorder, and resistance through black color that symbolize bad luck and unstability, trophyism with bad flavor, tattered material effect, and destructive message painting. Masculine eroticism appeared in accordance with pursuing after pleasure and masculine sexuality through exposure of buttocks and focused penis due to jacket's short length, and fetish of black.

A Study on the Allegory in LadyGaGa's Fashion Style(Part 2) - Focused on Music Video - (LadyGaGa의 패션스타일에 나타난 알레고리 연구(제2보) - 뮤직비디오를 중심으로 -)

  • Kim, Hyang-Ja;Kwon, Mi-Jeong
    • The Korean Fashion and Textile Research Journal
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    • v.14 no.5
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    • pp.701-712
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    • 2012
  • This study examines the various expressions and immanent value of fashion and beauty style based on Craig Owens's Allegory theory. I analyzed four application elements of Borrow, Site Specificity, Accumulation of Strategy, and Hybridization in? Ladygaga's Music Videos. The results are as follows. 'Borrow' presents a kitsch style and playful Pop-art style, transformation of gender from Mini Mouse body suit, telephone headpiece, and can hair. 'Site specificity' presents the temporarity of fashion material through rebirth, aging, natural extinction from the chain over the black jump suit, crime scene tape, and skull-face makeup with masculine style. 'Accumulation of strategy' presents a futuristic chic fashion style from a layered style, retrospective fashion, repetition and duplication in Music Videos. It shows the physical beauty of an Asian warrior style in Poker Face. 'Hybridization' present Cyborg feminism and 'Will of Power' from iPOD LCD glasses and Pyro-Bra. The Pyro-Bra represents how the female body can be used as a weapon in the outfits of Lady Gaga. In addition, Immanent value is as follows. Textual interaction with high art is accomplished through a combination of contemporary social and cultural significance to understand the cultural code and to extend the value. Combined with high culture, popular music genre is accomplished through musical appreciation by a woman in fashion styling and sensual pleasures of the body as a tool to express a sublime advantage. Fashion style is accomplished by overcoming a self-transcendent body image representation. The way in which mutual coupling dismantling, destruction, and uncertainty is to re-launch the static, with a pluralistic context of Textuality.

A Study on Latin American Style Expressed in Modern Fashion (현대 패션에 나타난 라틴 아메리칸 스타일)

  • Ham, Youn-Ja
    • The Korean Fashion and Textile Research Journal
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    • v.14 no.5
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    • pp.749-757
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    • 2012
  • The purpose of this study is to consider the characteristics of Latin American style expressed in modern fashion. Latin American fashion has been overlooked the influences, scope and diversity of dress within this world culture region. So, this study aim to unravel the history and significance of Latin American fashion. As for the research methodology, to classify types of the Latin American fashion style theoretical study and content analysis for Vogue magazine has been undertaken. In this study, the term of Latin American fashion style refers to the dress of common characteristics involving Latin American culture. To inquire into the characteristics of the types, various cases has been searched through books, internet, and designer's collections. The results of this study can be summarized as followings. The major types of Latin American fashion style are Indio-ethnic style, tropical-exotic style, and latin-romantic style. First, Indio-ethnic style has been involving traditional costumes and patterns which are originated in ancient Mexico and Peru. Second, tropical-exotic style has been involving bright color, tropical fruit and African flower pattern, various textures, and relaxed silhouette which are inspired by free and easy culture in Brazil and the Caribbean. Third, latin-romantic style has been involving the mix of Latin American tradition and romantic detail such as see-through material, lace, ruffle, spanish flower motif. In conclusion, Latin American style on contemporary fashion is based on interest to cannibalize folk theme, technique, icons and exotic others.

Texture mapping of 3D game graphics - characteristics of hand painted texture (3D게임그래픽의 텍스쳐 매핑-손맵의 특징)

  • Sohn, Jong-Nam;Han, Tae-Woo
    • Journal of Digital Convergence
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    • v.13 no.11
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    • pp.331-336
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    • 2015
  • The texture mapping used for the low-polygon models is one of the important workflows in the graphical representation of the 3D game. Only one hand painted texture is mapped on the surface of the 3D model and represents the color of the material and visual sense of touching by itself in that process. In the 3D game graphics, it is very important to visualize the textile sensation such as protruding and denting. It can be interpreted by the Gestalt Law to recognize a plane as a 3D sense of volume. Moreover, the concept of Affordance is necessary to recognize and perceive the textile sensation. It means visual recognizing of that relationship in the learning process. In this paper, The questionnaire survey targeting 3D game graphic designers is carried out. By analyzing the survey results, we suggest the important characteristic in the process of making hand painted texture.

Shoes Purchasing Behavior and Wearing Satisfaction Related with Lifestyle of High School Girls (여고생의 라이프스타일에 따른 신발 구매 행동과 착용만족도)

  • Lee, So-Hyoung;Lee, Ji-Yeon;Park, Myung-Ja
    • Journal of the Korea Fashion and Costume Design Association
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    • v.12 no.2
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    • pp.75-90
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    • 2010
  • Teenagers are considered as one of important consumer groups by marketers because of their high purchasing power and impulsive purchasing propensity. Especially high school girls are most significant purchasing group of them. The purpose of this study is to investigate the effect of high school girls' lifestyle on shoes purchasing behavior and shoes wearing satisfaction. This study surveyed 428 high school girls in Seoul and Chonbuk area. Data were statistically analyzed using SAS 9.1.3 for Window. Major statistical methods are factor analysis, Cronbach's αα coefficient, cluster analysis, frequency analysis, Chi-square test, multiple regression analysis, ANOVA and Duncan test. The shoes purchasing behavior is significantly different according to students' lifestyle. Activity-pursuing group's major shoes purchasing factor is practical use and fashion & scholar-pursuing group's major shoes purchasing factors are fashion and brand. Relationship between lifestyle and shoes purchasing pattern is as follows. Activity-pursuing group and fashion & scholar-pursuing group purchased shoes more frequently than family-pursuing group. Fashion & scholar-pursuing-group purchased shoes for the harmony of suit and shoes. As for wearing satisfaction, design is the primary factor and price was the least significant factor in sports shoes, while durability is the primary factor and material is the least significant factor for the casual shoes.

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Analysis of the Fit and Pattern Size of Ready-to-wear Slim-fit Jeans for Upper Grade Elementary School Girls (학령 후기 여아의 기성복 청바지 맞음새 및 패턴치수 분석)

  • Kim, Hea suk;Lee, Jeong yim
    • The Korean Fashion and Textile Research Journal
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    • v.22 no.3
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    • pp.357-367
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    • 2020
  • This study collected the basic data required to develop a slim-fit jeans pattern for upper grade elementary school girls. First, a fit evaluation was made by selecting five slim-fit jeans of ready-to-wear brands. Subjects were four girls aged 11-12 with an average body size that evaluated the appearance and motion functionality of five brands of jeans. Five experts also evaluated their appearance. Second, pattern sizes were analyzed and compared with the average size of upper grade elementary school girls by measuring the pattern sizes of five brands jeans. As a result, Brand A received a high score in appearance and motion functionality. Brand E scored high with Brand A in appearance, while Brand E had the lowest score in motion functionality. For most of the five brand jeans, (+) ease was added to include a wide range of body sizes for upper grade elementary school girls, but the hip circumference, thigh circumference, and knee circumference of Brand E jeans were smaller than the average size of girls. The (-) ease was applied to make the figure look slim, which resulted in a high appearance score. However, since Brand E received a low score in the motion functionality, it could be seen that the (-) ease was not suitable for subjects although the material was stretchable. The result of this study will be used to develop a slim-fit jeans pattern suitable for upper grade elementary school girls.