• Title/Summary/Keyword: silk screen

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Preparation and Screen Printing of Natural Dye Powders (천연염료 분말 제조 및 날염)

  • Nam, Sung-Woo;Kim, Ki-Tea
    • Textile Coloration and Finishing
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    • v.22 no.4
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    • pp.314-324
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    • 2010
  • The purpose of this study is to obtain the dyed-fabrics of the elaborate patterns using the natural dye powders extracted from Galla Rhois, Sophorae Flos Immaturus, Clove, Sappan Wood, Madder, Log Wood and Japanese Green Alder. Specific informations on the separation and powder-making of each colorant were disclosed. Appropriate printing paste preparation and printing conditions including the viscosity and mordant concentration in the printing paste were investigated. The dyeability and colorfastness of the screen-printed silk fabrics with the colorant powders were discussed in terms of practical applicability. The deodorization and antimicrobial activities of the silk fabrics screen-printed with natural dyes were also assessed.

Development of Build up Multilayer Board Rapid Manufacturing Process Using Screen Printing Technology (스크린인쇄 법을 이용한 Build-up다층인쇄회로기판의 쾌속제조공정 기술개발)

  • 조병희;정해도;정해원
    • Journal of the Microelectronics and Packaging Society
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    • v.6 no.4
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    • pp.15-22
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    • 1999
  • Generally, many equipments and a long lead time ale required to manufacture the build-up multilayer board through various processes such as etching, plating, drilling etc. Wet process is suitable for mass production, however it is not adequate for manufacturing prototype in developing stage. In this study, a silk screen printing technology is introduced to make a prototype build-up multilayer board. As for the material photo/thermal curable resin and conductive paste are used for forming dielectric and conductor. And conductive paste fills vias for interconnecting each layer, and also is used for circuit patterning by silk screen technology. Finally, the basic concept and the possibility of build-up multilayer board prototype is proposed and verified as a powerful approach, compared with the conventional processes.

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Humidity Sensitive Characteristics of CaTiO3 Thin Films (CaTiO3 박막의 감습특성)

  • Yook, Jae-Ho
    • The Transactions of the Korean Institute of Electrical Engineers P
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    • v.62 no.2
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    • pp.95-97
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    • 2013
  • $CaTiO_3$ thin films using silk screen printing technology were fabricated and their humidity sensitive characteristics have been investigated. The specimens were sintered at $1000^{\circ}C$, $1050^{\circ}C$, $1100^{\circ}C$ for 1 hour and the best humidity sensitivity was shown in the specimens sintered at $1000^{\circ}C$. The humidity sensitivity decreased with increasing measuring frequencies and was stable at different abient temperatures. Hysteresis of impedance variation with increasing and decreasing relative humidity were negligible.

Humidity Sensing Properties of 90[wt%] SnO2-10[wt%] TiO2 Ceramics (90[wt%] SnO2-10[wt%] TiO2 세라믹스의 습도감지특성)

  • You, Do-Hyun
    • The Transactions of The Korean Institute of Electrical Engineers
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    • v.63 no.9
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    • pp.1227-1232
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    • 2014
  • The purpose of this paper is to establish the optimum fabricating condition of specimens using silk screen printing, and to develop humidity sensor which has good humidity sensing properties. The specimens are fabricated under the condition of 90[wt%] $SnO_2$-10[wt%] $TiO_2$, and their microstructure, crystalline structure, humidity sensing properties are examined. From the microstructure analyses, porosity is best at 700[$^{\circ}C$]. From the crystalline structure analyses, intensity of peak becomes strong according to increasing heat treatment temperature. From the humidity sensing properties analyses, an overall results of capacitance changes, linearity and hysteresis for the specimens is best at 600[$^{\circ}C$] and 700[$^{\circ}C$]. Capacitance of specimens increases according to decreasing measurement frequency, and to increasing relative humidity.

Microwave Properties of Ag Conducting Paste with Various Preparation Conditions (Ag가 함유된 전도성 도료의 제조 조건에 따른 고주파 특성)

  • Park, Sang-Hoon;Kim, Jeong-Pyo;Seong, Won-Mo
    • Journal of the Korean Institute of Electrical and Electronic Material Engineers
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    • v.18 no.9
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    • pp.827-832
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    • 2005
  • Dual band internal antennas were fabricated with Ag conducting paste of various preparation conditions and different print thickness by silk screen print. We have investigated microwave properties were compared Ag conducting paste antenna with copperplate antenna at 800 MHz and 1,800 MHz. Gain of Ag conducting paste antenna was improved when preparation conditions were the single size Ag particle, using dry type resin and high Ag containing percent. However, it was lower than that of copperplate antenna within $0.1\~2.0dBi$ at 800MHz. In addition, it was improved at 800MHz when thickness of Ag conducting paste was printed more than skin depth but it was held after critical print thickness. On the other hand, it was reached level of copperplate antenna at 1,800MHz.

A Study on Fashion illustration Based on Pop Art Technique (패션 일러스트레이션에서 보여지는 팝 아트적 표현 특성에 관한 연구)

  • Kim, Mi-Hyun
    • Journal of the Korean Society of Clothing and Textiles
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    • v.32 no.4
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    • pp.659-668
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    • 2008
  • Today, Fashion illustration has been diversified in its usage and respotlighted in the significance of its artistry by artists' interpretation and subjective perspectives. The purpose of this study is to find out theoretical reestablishment of this extended expression sphere and possible expression coverage of Fashion illustration. First, based on the Fashion illustration works revealing expressive features of Pop Art, this study reviews major considerations of Fashion illustration, i.e. assemblage, silk screen and new possible perspectives respectively. Therefore, based on the reviews, this study seeks to deduce pop art characteristics of expression technique found in Fashion illustration. Expression modes of Pop Art are represented broadly by assemblage, silk screen and new perspectives. Based on corresponding case analysis, this study could come to find out the following expressive features of pop art revealed in Fashion illustration: First, it is found that contemporary Fashion illustration pursues unbounded expressions and unprecedented styles owing to material variety. Second, it is found that contemporary Fashion illustration tries to adopt new and experimental techniques including computer program. Third, it is found that Fashion illustration characterized mainly by expressive features of Pop Art shows and pioneer a wide variety of application spheres including commercials(ads), newspaper or magazine illustration and cartoon ads simply beyond designer's creative drawing. Furthermore, it is expected that Pop Art's expressive features shown in Fashion illustration will evolve through a fusion with various experimental techniques, and keep having cultural and artistic influence in the future as well.

Effects of the Rheological Properties of UV Cured Acrylic Pressure Sensitive Adhesive with Nano-particles on the Silk Screen Printing and Adhesion (실크 스크린 인쇄 및 점착력에 나노 입자가 포함된 UV 경화형 아크릴계 감압 점착제의 유변학적 특성)

  • Cho, Min-Jeong;Kang, Ho-Jong;Kim, Dong-Bok
    • Journal of Adhesion and Interface
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    • v.18 no.1
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    • pp.25-32
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    • 2017
  • For application to display module junction process, the silk screen printing based on UV curable acrylic pressure sensitive adhesive(PSA) with silica nano-particles and the rheological properties were studied to investigate the effect on printability and adhesion. The monomers for PSA were based on 2-ethylhexyl acrylate(2-EHA) and acrylic acid(AA) 93:7, butyl acylate(BA), 2-hydroxyethyl acrylate(2-HEA) and tetrahydrofurfuryl acrylate(THFA) were added. Additionally, hydrophobic and hydrophilic nano-particles AEROSIL R974 and AEROSIL 200 were added, respectively. When the ratio of nano-particle was used above 4 or 7 phr, G' and ${\eta}^*$ were increased significantly. When the ratio of AEROSIL 200 was used above 7 phr, the penetration property was decreased during the silk screen printing. We found that the adhesion was decreased with increasing the nano-particle content, and it was decreased in the case of the hydrophilic nano-particle AEROSIL 200.

A Study of Costumes lllustrated in the Ten folding screens on Queen Myong-hun's 70th Birthday Celebration(헌종왕후 칠순 진찬도병) and Described in the Prospectus of the Celebration Ceremony(신축진 찬의궤) (헌종왕후 칠순 신찬 10곡도병과 신축신찬의궤에 나타난 복식연구)

  • 유송옥
    • Journal of the Korean Society of Costume
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    • v.32
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    • pp.31-43
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    • 1997
  • The costumes on a royal ceremony and the changes thereafter during the Korea Empire(1897-1910) have been elucidated through the review on the paintings on Queen Myong-Hun's 70th birthday celebration and the prospectus of the ceremony. Queen Myong-Hyn wore ceremonial gown in deep blue with 51 embroidered phoenix on it. The deep blue color the royal color in the Korea Empire replaced former red color. Go-jong wore violet crown and ceremonial suit in gold color. Twenty one kinds of court dance were offered during the celebration ceremony. Costumes therein appear to have an order according to the role ofdancers. most female dancers(in 17 performances not else-where specified) wore a rather common cos-tume-flower cap outer silk garent in green hand veils in 5 colors silk skirt in red) embroidered silk belt in red and shoes in green. In Sun-you-ak two female lead dancers were red hat decorated with tiger whisker deep blue outer garment wide red belt silk boots in black bow and arrows on back and a sword and a whip in hands. In Choonaang-jon a fe-male solo dancer wore a silk outer garment in yellow silk skirt in red green lorum embroidered silk belt in red wrist band of gold embroidered red silk and 5 color hand veils. In Yon-wha-dae two young girl dancers wore lotus-form crown green outer garment wide pants in red silk red silk skirt red silk belt hand veils in jade color and silk shoes in deep red. In Moo-go 4 female dancers each wore long waist coat in blue red white and warm light green in addition to the above-mentioned common costume. In Gumkee-moo 4 female dancers wore hatlike wool helmet outer garment with narrow sleeve long silk waist coat in blue combat belt in deep blue silk and dance swords in both hands. In Youk-wha-dae 6 female dancers each wore a long waist cost in red deep blue violet pale pink green and jade color. Green color of outer garment in the above-mentioned common costume of female dancers appears intersting. Although the color was shown as yellow in the screen paintings actually it was green as evidenced by the prospectus of the celeebration ceremony.

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A Study of the Etched Animation Expression Techniques of Piotr Dumala (Piotr Dumala의 메조틴트 애니메이션에 나타난 동판화의 제작 기법 연구)

  • Jang, Seo-Woo;Kim, Jea-Woong
    • The Journal of the Korea Contents Association
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    • v.17 no.8
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    • pp.685-692
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    • 2017
  • Fine art production methods are frequently incorporated into animation production. The Printing Expression method is often employed among fine art production. There are three main techniques in Printing Expression: Silk Screen, Woodcut and Etching. Animations that use Silk Screen and Woodcut techniques are quite common. However, it is rare to find Etching techniques in animations. So with that being said, I would like to introduce etching animation through the work of Piotr Dumala; the well known Ink Etched film director. Also, I analyzed the characters: movement, unique texture and sensuous feeling; that only mezzotinted Etched-Animation expression technique can show. If we can expand methods on how to show our imagination through etching techniques, it can allow many directors to produce etched animation films in which they can express their imagination.