• Title/Summary/Keyword: sewing conditions

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A Study on the Adhesive Condition of the Nonwoven Fabrics in Sewing of the Leather (피혁봉재에 있어서 부직포 접착심지의 접착방법에 관한 연구)

  • Kim Young Ja
    • Journal of the Korean Society of Clothing and Textiles
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    • v.5 no.2
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    • pp.35-40
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    • 1981
  • This study aims at finding appropriate adhesive conditions with special regard the material of 'fusible padding cloth inter ling' was frequently used for leather. As for leather material, pig suede, sheep suede were selected and drum dyed, cow split, napa have also been used. Mixed spinning non-woven fabric (polyester $50\%$, nylon $50\%$) were used as for padding cloth. Experimental appearance has been observed under the following adhesive conditions: Temperature of press were devided four levers; $120^{\circ}C$, $130^{\circ}C$, $140^{\circ}C$, $150^{\circ}C$, respectively. Adhesive time has been limited 5, 10, 15 second each. And the pressure has been conditioned as $0.2kg/cm^2$ continuously. After all this experiment, it was discovered that the material which had long contact with low temperature conditions has similar adhesive power to material that has short contact with high temperature conditions. There is a great difference according to the leather's dying process, the finishing method of the cloth, and the part of leather surface. The best condition for suede are $140^{\circ}C$, $150^{\circ}C$, at 10 seconds. and for D/D, NAPA, $130^{\circ}C$, at 10 seconds. Although the conditions of $150^{\circ}C$, at 15 seconds was possible for split, the process time can be shortened according to the increase of temperature.

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A Study on Fabric Adhesive Interlining(3) (직물접착심지에 관한 연구(3))

  • Cho, Cha
    • Journal of the Korean Home Economics Association
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    • v.35 no.1
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    • pp.257-262
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    • 1997
  • In this thesis considering the problems shown in the usage of interlining of clothes and in the process of sewing the breaking away strength which is meant by adhesion is analysed by experimennt in which Polyamide content is dealed with at the 5 level to raise the adhesive strength by using the one-sided non woven adhesive interlining made in this country as the samples. After examing the optimum in the process of Cotton and polyester fabrics and adhered fabrics practical for blouse and jacket and analysing the breaking away strength the wanted property of matter and the change with the repeated laundry We reach at the following results. 1. The adhesive strength of the two adhered fabrics were strongly appeared in order of cotton>polyester. 2. The order of the breaking away strength by the interlinings of adhesive fabrics was A5> A4> A3> A2> A1. 3. The breaking away strength of the two adhered fabrics was weakened by the repeated laundry and the breaking away phenomena were fewer under the most suitable conditions than the various conditions.

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Evaluation of Dyeing Properties of Modified Polypropylene Fibers by Electron Beam Irradiation (전자선조사에 의한 폴리프로필렌 섬유의 개질 및 염기성염료의 염착특성)

  • Kim, Hong-Je;Bae, Jin-Seok
    • Textile Coloration and Finishing
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    • v.21 no.1
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    • pp.46-52
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    • 2009
  • Dyeing properties of hydrophobic polypropylene fibers using cationic dyes were investigated to improve dyeability by electron beam irradiation and sulfonic acid incorporation. The color strength of irradiated polypropylene fibers was examined according to the dyeing conditions including pH of dyebath, absorbed doses, and introduction of functional group to fiber substrate. The best dyeing result was obtained when sulfonic acid group incorporated polypropylene fibers after electron beam irradiation were dyed with cationic dyes at alkaline conditions and 30$\sim$75kGy irradiation ranges.

A Study On Design And Pattern Development For The Uniform Of Female Middle-School Students (국내 여중생을 위한 교복 디자인 및 패턴 개발)

  • Han, Wooshin;Choi, Jeongwook
    • Journal of Fashion Business
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    • v.22 no.4
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    • pp.1-19
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    • 2018
  • Unlike other ready-made suits, which are normalized based on aspects like, designs, materials, sewing methods, has to be worn for three years, designing and pattern development of school uniform depends greatly on satisfaction and appearance. Furthermore, school uniform is of importance as many teenagers spend most of their time at school. In the present work, an attempt has been made to suggest ideal school uniform for female middle school students based on their actual uniform conditions and design preferences, so that the demands of artistic aspect, and the requirements of a suitable uniform for a female teenager can be fulfilled. Initially, a survey about the actual wearing condition was held to figure out the actual uniform conditions and design preferences. Based on the result of the survey, two types of school uniform were made with different patterns. Finally, the most ideal school uniform for female middle school students was suggested based on the experiment involving a few aspects such as suitability and functionality. It is conjectured that school uniform survey and investigation, could provide useful information to the school uniform business market.

A Study on the Conditions of Apparel Products of Stretch Material (II) (스트레치소재(素材) 의류제품(衣類製品)의 생산실태(生産實態) 연구(硏究)(II))

  • Park, Jin-Young;Sohn, Hee-Soon
    • Journal of Fashion Business
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    • v.2 no.2
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    • pp.77-84
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    • 1998
  • As a result of surveying the process for sewing, the problems involving the outlook of sewn apparels were error off the standard dimensions and uneven sizes, which verifies the need for urgent technological guidance and development. On the other hand, the majority of the businesses were operating their sewing machines at the speed of 2,000 rpm or higher. Such a conventional working method may not well reflect the properties of the stretch fabrics, causing poorer quality products. Moreover, most of the businesses were using the ball-point needles which should be replaced with appropriate ones for stretch fabric. The types of feed dog which were used most were Drop feed, Union feed, Confound feed, Differential feed in their oder. Anyway, the automatized dog should urgently replace these inefficient ones for stretch fabric. Meanwhile, the types of presser foot which were used most were Plain foot, Teflon foot, Roller foot, Ring foot in their order, which also necessitates their replacement which Teflon foot. 2. As a result of surveying the process for finishing and inspection, while the causes scores less than 3 points, those due to pressers scored more than 3 points. This results suggests that a technological guidance is needed for the pressing work. Lastly, the causes of defect due to poor outlook attributable to such notions as button or zipper and those due to the uneven sizes scored more than 3 points, which suggests that the entire of needle works should be reformed through scientific research and technological guidance.

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Analysis of Flexible Media Behavior by Dynamic Elastica (Dynamic Elastica에 의한 유연매체의 거동해석)

  • Hong, Sung-Kwon;Jee, Jung-Geun;Jang, Yong-Hoon;Park, No-Cheol;Park, Young-Pil
    • Proceedings of the Korean Society for Noise and Vibration Engineering Conference
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    • 2004.11a
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    • pp.600-605
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    • 2004
  • In many machines handling lightweight and flexible media such as magnetic tape drives, xerographic copiers and sewing machines, the media must transit an open space. It is important to predict the static and dynamic behavior of the sheets with a high degree of reliability. The nonlinear theory of the dynamic elastica has often been used to a nonlinear dynamic deflection model. In this paper, the governing equation is derived and simulated by the finite differential method. The parametric cubic curve is applied for defining the guide shape. The dynamic contact conditions suggested by Klarbring is used to predict the direction of the flexible media according to the initial velocity and the friction coefficient. The analysis is also compared to the conventional model, showing that after contacting a $45^{\circ}$ wall, the directions of flexible media of two models are different.

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Textbooks and Textiles: Fashion in East Asia, 1920-1945

  • Yi, Jaeyoon
    • International Journal of Costume and Fashion
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    • v.15 no.1
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    • pp.87-101
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    • 2015
  • From the 1920s to 1945, East Asia experienced radical social change with the introduction of new fashion styles, and new ways of thinking, from the West. The emergence of a new generation of "new women" educated in modern schools was part of this phenomenon, and functioned as a trend-setting influence in East Asian society. In schools, education in dressmaking, sewing, and home economics were important parts of female education. Adopting a new fashion style is, by necessity, accompanied by the new technology of dressmaking. Given that ready-made clothing was not generally available, dressmaking education also served to introduce a new material culture. In Korea and Taiwan under Japanese colonization, the greater part of school curricula and textbooks mirrored those in Japan, which enabled these countries to develop and adopt transnational styles as well as local styles. This research explores the transition of women's fashion in East Asia in modern and colonial conditions from the 1920s to the 1940s by analysing curricula and textbooks on dressmaking in comparison with the prevailing styles in each region. This is expected to suggest the impact of modernity in East Asia and the transnational styles of fashion in colonial Korea and Taiwan, as well as Japan, developed within the local culture. Colonial conditions are also discussed in terms of their impact and limitations in the transition of styles.

A Study on the Actual Conditions of Living Room Lighting in Daegu and Gyeongbuk Districts (대구·경북 지역 거실 조명 실태조사)

  • Jo, Young-Mi;An, Ok-Hee;Kim, Hyun-Jin
    • Journal of the Korean housing association
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    • v.23 no.3
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    • pp.13-20
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    • 2012
  • This research study was conducted to determine the actual conditions of living room lighting in Daegu and Gyeongbuk districts. For this study, 112 households were surveyed. The results of this study are as follows: Firstly, fluorescent light was used as the general illumination of living rooms, and the ratio of not using local sources of illumination was high. Secondly, the standard illuminance was found to be 221. The illuminance was the value that satisfied the activities for togetherness and entertainment, but did not reach the illuminance necessary for other activities, such as reading, make-up, and sewing. In addition, the uniformity of brightness used as a measure of uniformity in examining the results was normal. Thirdly, both the brightness and the satisfaction of lighting in the living room space were indicated to be normal. In addition, in regard to housing lighting, 'stability', and 'brightness of lighting' were indicated as important considerations and 'brightness of lighting', 'shadow' and 'management of lighting' were indicated as problem areas.

A Study on Present State of Technical Designers' Work Responsibilities and Training Conditions -Targeting Technical Designers Working for Clothing Vendors and Agents- (테크니컬 디자이너의 업무 및 교육 실태에 관한 연구 -벤더(Vendor)와 에이전트(Agent) 테크니컬 디자이너를 대상으로-)

  • Lee, Eun-Young;Choi, Hei-Sun;Do, Wol-Hee
    • Journal of the Korean Society of Clothing and Textiles
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    • v.37 no.3
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    • pp.292-305
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    • 2013
  • This study reported present state of clothing technical designers' work duties and working conditions, so as to suggest effective ways to develop professional training methods for them. Technical designers working for vendors and agents were surveyed as they represent the majority of technical designers in Korean clothing industries. Survey participants were 62 technical designers working for 6 clothing vendors and 2 clothing agents, and the survey closely inspected their work qualifications, duties and responsibilities, working conditions and training conditions. Survey was conducted from June $27^{th}$ to July $17^{th}$, 2012. The questionnaire examined frequency analysis and multiple response analysis using SPSS 19.0 Windows after investigating documents and work fields through personal experiences and interviews from technical designers for data collection and analysis. A chi-square test analyzed the preferred type of fitting for technical designers of vendors and agents. The results showed that 32.3% of those surveyed have more than 7 years of work experience and the highest level of education is predominantly a bachelor's degree (57 people, 91.9%). Among the work responsibilities, respondents did sample measuring more than four times a day. Also, the results showed that technical designers needed to qualify: first 'Fitting Technic', second 'Pattern Correction Capability', and third 'English Skills to Communicate with Buyers'; subsequently, education on several technics (such as measuring, grading, and fitting) were required for the job. Current technical designers answered that they need more various work-related education. However, the analyzed results showed that pre work-related training was insufficient. The data shows that technical designers require re-education in 'Pattern Correction Method' (61.3%) and 'Sewing Education' (64.5%).

Literary Therapeutics of Brownian Motion in Hwang Jin-yi's Sijo (황진이 시조에 나타나는 브라운운동의 문학치료학)

  • Park, In-Kwa
    • The Journal of the Convergence on Culture Technology
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    • v.4 no.3
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    • pp.159-163
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    • 2018
  • This study describes Brownian motion of human narrative in physiological perspective. The purpose of this study is to investigate how these functions appear in literary works and to apply them to the practice of literary therapy in the future. Hwang Jin-yi's sijo is the first to cut off the longing. Then, It fold that longing and keep it. Finally, It is to unfold those longing. In this folded and unfolded movement, this Sijo is vibrated. This is the Brownian motion of Sijo. In this, the Sijo completes endless love. Using the Brownian motion of these literary feelings, it seems that literary therapy can form conditions of human physiological healing.