• Title, Summary, Keyword: ink-jet printing

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A Study on the Optimization of Inkjet Proofing for High Quality Offset Color Printing (고품질 오프셋 컬러인쇄를 위한 잉크젯 방식 교정인쇄에 최적화에 관한 연구)

  • Kim, Sung-Su;Kang, Sang-Hoon
    • Journal of the Korean Printing Society
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    • v.24 no.2
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    • pp.69-78
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    • 2006
  • Proofing is one of the inspection operations of printing and can be considered a process control step. The three main kinds of proofs are press proofs, photomechanical proofs, and digital proofs. Photomechanical and digital proofs are also generally refered to as "off-press" proofs. Off-press color proofs are more economical than press proofs. Digital proofs offer fast production time along with a much lower cost per page. Hard-copy digital proofs can be output using thermal transfer printers, ink jet printers, and color laser copiers, as well as dye sublimation and electrophotographic technology. Ink jet method is commonly using because of the reasonal price. But ink jet system is difficult to reproduce an exact color proof. This research was carried out for the purpose of optimization of ink jet color proofing, using two kinds of ink jet printers with 6 colors (C, M, Y, K, mC, mM) and 4 colors (C, M, Y, K) system.

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Simple Tools for Ink Jet Printing of Functional Fluids

  • Schoeppler, Martin W.;Creagh, Linda T.
    • 한국정보디스플레이학회:학술대회논문집
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    • pp.1657-1659
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    • 2006
  • Success in moving ink jets into newer areas such as printing on to-be-defined flexible substrates or developing new functional fluids requires both process and fluid research and engineering. Today, leading-edge concepts are slow to be explored because of the expense and complexity of commercially available ink jet deposition systems, time and resources required to specify and acquire commercial ink jet systems and the expertise required to operate commercial ink jet systems.

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Cu Line Fabricated with Inkjet Printing Technology for Printed Circuit Board (잉크젯 인쇄 기술을 이용한 인쇄회로기판용 나노구리배선 개발)

  • Seo, Shang-Hoon;Lee, Ro-Woon;Yun, Kwan-Soo;Joung, Jae-Woo;Lee, Hee-Jo;Yook, Jong-Gwan
    • Proceedings of the KSME Conference
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    • pp.1806-1809
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    • 2008
  • Study that form micro pattern by direct ink jet printing method is getting attention recently. Direct ink jet printing spout fine droplet including nano metal particle by force or air pressure. There is reason which ink jet printing method is profitable especially in a various micro-patterning technology. It can embody patterns directly without complex process such as mask manufacture or screen-printing for existent lithography. In this study, research of a technology that ejects fine droplet form of Pico liter and forms metal micro pattern was carried with inkjet head of piezoelectricity drive system. Droplet established pattern while ejecting consecutively and move on the surface at the fixed speed. Patterns formed in ink are mixed with organic solvent and polymer that act as binder. So added thermal hardening process after evaporate organic solvent at isothermal after printing. I executed high frequency special quality estimation of CPW transmission line to confirm electrical property of manufactured circuit board. We tried a large area printing to confirm application possibility of an ink jet technology.

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Ink-Jet Printing of Conductive Silver Inks for Flexible Display Devices

  • Kim, Dong-Jo;Park, Jung-Ho;Jeong, Sun-Ho;Moon, Joo-Ho
    • 한국정보디스플레이학회:학술대회논문집
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    • pp.1491-1494
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    • 2005
  • We have studied ink-jet printing method for patterning conductive line on flexible plastic substrates. Synthesized silver nano-particles of ${\sim}$20nm were used for the conductive ink and the printed patterns exhibit a smooth line whose linewidth is below 100 ${\mu}m$. This ink-jet printing technique can be applied to flexible displays and electronics.

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Improvement of Dispersion Stability of Ink-jet Ink for Polyester Fiber (폴리에스터용 잉크젯 잉크의 분산안정성 개선에 관한 연구)

  • 최재홍;지병철;서인석
    • Textile Coloration and Finishing
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    • v.15 no.5
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    • pp.321-326
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    • 2003
  • In order for disperse dye based ink to be fitted with the critical requirements of ink jet printing, this study was undertaken to investigate the effects of 6 different dispersants on the milling efficiency of insoluble dye particles and dispersion stability of the final ink. It was found that a polystyrene dispersant with high molecular weight exerted relatively better dispersion stability which may be associated with its steric stabilization effect in the ink solution.

Ink Jets as Display Manufacturing Tools

  • Schoeppler, Martin.W.
    • 한국정보디스플레이학회:학술대회논문집
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    • pp.1719-1721
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    • 2007
  • Major display equipment suppliers have introduced equipment using ink jets for manufacturing steps such as printing the polyimide alignment layer and printing color filters. This paper will discuss the status of ink jets as precision deposition tools and the new technology being introduced for ink jet manufacturing.

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Fabrication of Thin Film Transistors based on Sol-Gel Derived Oxide Semiconductor Layers by Ink-Jet Printing Technology

  • Mun, Ju-Ho;Kim, Dong-Jo;Song, Geun-Gyu;Jeong, Yeong-Min;Gu, Chang-Yeong
    • Proceedings of the Materials Research Society of Korea Conference
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    • pp.16.1-16.1
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    • 2009
  • We have fabricated solution processed oxide semiconductor active layer for thin film transistors (TFTs). The oxide semiconductor layers were prepared by ink-jet printing the sol-gel precursor solution based on doped-ZnO. Inorganic ZnO-based thin films have drawn significant attention as an active channel layer for TFTs applications alternative to conventional Si-based materials and organic semiconducting materials, due to their wide energy band gap, optical transparency, high mobility, and better stability. However, in spite of such excellent device performances, the fabrication methods of ZnO related oxide active layer involve high cost vacuum processes such as sputtering and pulsed laser deposition. Herein we introduced the ink-jet printing technology to prepare the active layers of oxide semiconductor. Stable sol-gel precursor solutions were obtained by controlling the composition of precursor as well as solvents and stabilizers, and their influences on electrical performance of the transistors were demonstrated by measuring electrical parameters such as off-current, on-current, mobility, and threshold voltage. Microstructure and thermal behavior of the doped ZnO films were investigated by SEM, XRD, and TG/DTA. Furthermore, we studied the influence of the ink-jet printing conditions such as substrate temperature and surface treatment on the microstructure of the ink-jet printed active layers and electrical performance. The mobility value of the device with optimized condition was about 0.1-1.0 $cm^2/Vs$ and the on/off current ratio was about $10^6$. Our investigations demonstrate the feasibility of the ink-jet printed oxide TFTs toward successful application to cost-effective and mass-producible displays.

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Fabrication of Flexible Inorganic/Organic Hybrid Thin-Film Transistors by All Ink-Jet Printed Components on Plastic Substrate

  • Kim, Dong-Jo;Lee, Seong-Hui;Moon, Joo-Ho
    • 한국정보디스플레이학회:학술대회논문집
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    • pp.1463-1465
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    • 2008
  • We report all-ink-jet printed inorganic/organic hybrid TFTs on plastic substrates. We have investigated the optimal printing conditions to make uniform patterned layers of gate electrode, dielectrics, source/drain electrodes, and semiconductor as a coplanar type TFT in a successive manner. All ink-jet printed devices have good mechanical flexibility and current modulation characteristic even when bent.

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Printability of digital color ceramic ink on glazed surface of ink-jet printed ceramic tile (디지털 프린팅용 세라믹 잉크의 유약표면 인쇄적성 및 특성평가)

  • Kim, Jin-Ho;Hwang, Kwang-Taek;Cho, Woo-Seok;Han, Kyu-Sung
    • Journal of the Korean Crystal Growth and Crystal Technology
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    • v.27 no.5
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    • pp.256-262
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    • 2017
  • Digital ink-jet printing technology using ceramic ink, which is thermally stable at high temperature above $1000^{\circ}C$, has an advantage of eco-friendly process applicable to manufacturing products with an excellent durability and various designs. Recently, replacement from conventional manufacturing process to digital process using ink-jet printing technique has been significantly accelerated in ceramic tile industry. In this study, we investigated ink-jet printability of ceramic ink on ceramic tile. Cyan, magenta, yellow, black ceramic inks, which are digital primary color of ink-jet printing, were printed on glazed surface of ceramic tiles, and their printabilities were comparatively analyzed. High temperature sintering process is generally required for manufacturing ceramic products, thus effect of sintering process on printed pattern of ceramic ink was also investigated by analyzing ink penetration depth and ink dot area.