• 대한기계학회논문집 C: 기술과 교육
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• 제1권2호
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• pp.187-192
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• 2013

노즐을 이용한 인쇄 기법은 주로 전자 소자의 봉지를 위한 접착제의 인쇄분야에 적용되어 왔다. 노즐 인쇄를 통한 기능성 물질의 필름 형성은 커다란 도전이 될 수 있다. 본 논문에서는 노즐을 이용한 유기 잉크의 인쇄 특성을 실험을 통하여 알아보았다. 본 연구의 노즐 인쇄 실험에서 패턴을 형성하기 위한 잉크는 유기 발광 물질인 TAPC를 사용하였다. 인쇄된 패턴 폭은 잉크 공급 유량의 증가와 기판의 온도의 상승에 따라 증가하였다. 또한 인쇄된 패턴은 건조 후 커피링 형상을 나타내었다.

• 한국정보디스플레이학회:학술대회논문집
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• 한국정보디스플레이학회 2009년도 9th International Meeting on Information Display
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• pp.910-913
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• 2009

This paper examines attaching speed, detaching speed and contact time which affected in the ink transfer ratio and presents the best conditions for fabrication process of electrodes with Ag-ink using microcontact printing method. In conclusion, it shows the best printing characteristic by two conditions. One of condition is the attaching speed have to within less than 1mm/s and the detaching speed is high velocity as 1000mm/s and the contact time is taken about the minimum time when inking process. Another condition is the attaching speed have to within more than 100mm/s and the detaching speed have to within less than 1mm/s and the contact time is longer than 30second when the printing process. As using these condition and the stamp sized 5cm${\times}$5cm, it was possible for printing equally until $30{\mu}m$ of width. The printed thickness of a electrode was about 300 to 500 nm, the surface roughness was about dozens nm under 50 nm.

• ETRI Journal
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• 제42권2호
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• pp.272-281
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• 2020

Three-dimensional (3D) selfie services, one of the major 3D printing services, print 3D models of an individual's face via scanning. However, most of these services require expensive full-color supporting 3D printers. The high cost of such printers poses a challenge in launching a variety of 3D printing application services. This paper presents a stencil-based 3D facial relief creation method employing a low-cost RGBD sensor and a 3D printer. Stencil-based 3D facial relief is an artwork in which some parts are holes, similar to that in a stencil, and other parts stand out, as in a relief. The proposed method creates a new type of relief by combining the existing stencil techniques and relief techniques. As a result, the 3D printed product resembles a two-colored object rather than a one-colored object even when a monochrome 3D printer is used. Unlike existing personalization-based 3D printing services, the proposed method enables the printing and delivery of products to customers in a short period of time. Experimental results reveal that, compared to existing 3D selfie products printed by monochrome 3D printers, our products have a higher degree of similarity and are more profitable.

• 제어로봇시스템학회논문지
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• 제15권9호
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• pp.894-898
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• 2009

In a post printing section of roll to roll printing systems, scratch problem is the major defects. The functional qualities such as conductivity, mobility could deteriorate because of the scratch defect. In general, the scratch of the printed pattern on the flexible substrate was induced from a contact between rolls and printed pattern in the post printing section. In this paper, for non-contacting transfer of a moving web, a mathematical tension model has been developed considering strain due to air floatation and the proposed mode has been validated by numerical simulation. Additionally, the correlation between floatation height and speed compensation to control the tension and register are investigated. On the basis of the proposed model, a guide line of speed control in R2R printing system is presented to guarantee the non-contact between rolls and R2R printed pattern on the flexible substrate.

• 한국정밀공학회:학술대회논문집
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• 한국정밀공학회 2012년도 추계학술대회 논문집
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• pp.97-98
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• 2012

• 한국인쇄학회지
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• 제12권1호
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• pp.43-55
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• 1994

To investigate relations between Grain-shape of plate and Dot-Gain in the lithography, Printing plates were made by Mechanical Grain, Brush Grain and Electrolytic Grain method.Fine multi-grain by electrolytic method of them resulted in less Dot-grain on the paper, more damping water on the none image part of printing plate.

• 한국정보디스플레이학회:학술대회논문집
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• 한국정보디스플레이학회 2007년도 7th International Meeting on Information Display 제7권2호
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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.

• 한국정보디스플레이학회:학술대회논문집
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• 한국정보디스플레이학회 2008년도 International Meeting on Information Display
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• pp.179-181
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• 2008

Major display equipment suppliers introduced equipment using inkjets for manufacturing steps such as printing polyimide alignment layers and color filters. This paper discusses how inkjets can be used in the development of flexible displays and materials printing systems designed to meet the challenges of fluids and process development.

• 한국의상디자인학회지
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• 제8권3호
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• pp.129-143
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• 2006

This study is to review the printed cotton textile industry of Europe in 17th-l8th century, and specially investigate the development of the Toile do Jouy, printed French fabrics around the 18th century. Generally, the Toile de Jouy has two different meanings. The first meaning is the popular printed cotton textiles producted by wood block printing, copper plate printing and roller printing techniques at Jouy on Joas factory in France, around 18th century. The second meaning is the monochromatic upholstery fabrics printed by copper plate. Actually, this monochromatic printed textiles were the most popular printed cotton fabrics with large scale scenic designs with people, trees, birds, buildings, mythical heroes, protagonists of novel and country scenes of shepherds, sheep and other animals manufactured by Jouy on Joas factory. Main issue of this paper is to propose features of pattern, color and classify types of patterns expressed on the Toile de Jouy fabrics according to printing techniques such as wood block printing, copper plate printing and copper roller printing. And this study is also to analyze on origins of the variety of names called the printed cotton textiles in those days. The results of this study can help to understand the knowledge of printed cotton textiles in Europe and be effectively applied to develop printed fabric design in the textile industry.

• 청정기술
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• 제9권3호
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• pp.107-113
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• 2003

인쇄 및 출판 산업의 발전으로 인쇄공정에서는 다량의 유독성 폐기물 및 폐수등이 발생한다. 인쇄공정에서 필수적으로 사용되는 각종 환경오염물질에 대한 규제가 강화되고 있기에 환경친화형 청정기술 개발이 필요하며 또한 인쇄업계의 적극적인 환경대응책이 필요한 시점이다. 따라서 본 연구에서는 인쇄폐수에 대한 정밀여과, 한외여과, 역삼투 등의 막분리 시스템의 효용성을 검토하고 공정을 개선할 수 있는 기본 자료를 도출하여 처리수의 재이용 방안을 모색하고 공정의 최적화를 도모하고자 하였다. 그 결과 U/F System의 운전압력은 $2kg/cm^2$이 적당하였으며, U/F처리수는 탁도 3NTU 이하로서 인쇄공정 현장에서 기계세척수로 사용가능할 것으로 판단되었다.