• 한국인쇄학회지
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• 제29권2호
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• pp.83-92
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• 2011

A inorganic powder EL lamp was made by screen printing technique with phosphor ink and dielectric ink. The thickness change of a phosphor ink layer and a dielectric ink layer were not influenced on dielectric content, but rely on phosphor size and vehicle. Once finishing screen printing technique with phosphor ink and dielectric ink, and its surface has been printed again before not drying of phosphor ink and dielectric ink. Then phosphor ink and dielectric ink were not transferred. The electric capacity of inorganic powder EL lamp was more influenced on dielectric content than the thickness of dielectric ink layer, and it was more dependent on the thickness of phosphor ink layer than the thickness of dielectric ink layer.

• 한국인쇄학회지
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• 제29권2호
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• pp.33-44
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• 2011

The inorganic powder EL lamp was made by screen printing technique with a phosphor ink and a dielectric ink. The thickness of a phosphor ink layer and a dielectric ink layer is $35{\mu}m$ and $54{\mu}m$ respectively. A increasing ratio of the luminance of inorganic powder EL lamp to be a 1P1PD-phosphor ink layer in which increased voltage at constant frequency is higher 12% than when increased frequency at constant voltage. It is higher 57% than when increased frequency at constant voltage that the rate of increase of the luminance of inorganic powder EL lamp to be a 2PD-phosphor ink layer in which increased voltage at constant frequency. Finally, when increased voltage at constant frequency, a increasing ratio of the luminance of inorganic powder EL lamp to be a 2PD-phosphor ink layer is higher about 40% than that to be a 1P1PD-phosphor ink layer.

• 펄프종이기술
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• 제34권3호
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• pp.53-58
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• 2002

This paper was performed to investigate the effect of pore structure on ink residual behavior. To prepare different coating structures as substrates against inks, fine, medium and coarse calcium carbonate were used in the coating color. It is well known ink properties can affect to print qualities. After printing on the coated paper, ink layer can consider as third structure addition to paper and coating layer. To compare effect of ink properties on the surface structure and print qualities, several properties of ink were also adopted as raw material. Particle size of pigment effect on gloss evaluation of coated paper increased with calendering. It was shown that ink transfer rate increased as surface of the sample was smooth. The ink contained low viscosity resin evaluated more print gloss. Finer pigment particle size, smaller pore size and higher porosity. Pore volume of coated paper was slightly decreased with printing as the coating was prepared with the finest particle size. However, it founded that ink resin could not affect on pore volume and distribution of printed paper

• 한국식품영양학회지
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• 제20권3호
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• pp.311-316
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• 2007

This study was performed to develop a functional yellow layer cake with added cuttlefish ink, by evaluating its physiochemical properties and sensory qualities. Viscosity tended to increase, and height decrease, with the addition of cuttlefish ink. The sensory evaluation revealed the addition of cuttlefish ink in the cake. Specifically, at the 0.3% level color, flavor, and gumminess were enhanced. The brightness(L) of the crumb was highest in the in the control group, at 72.76, and decreased with increasing amounts of cuttlefish ink. The crust of the yellow layer cake was highest in the control group. Furthermore, redness(a) of the crumb was lowest in the control group. but for the crust, it was highest in the control group at crust. Yellowness(b) decreased with increasing amounts of cuttlefish ink for both the crumb and crust. The hardness, cohesiveness, gumminess, and chewiness of the yellow layer cake was highest in the control group.

• Journal of Ceramic Processing Research
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• 제18권11호
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• pp.810-814
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• 2017

Proton exchange membrane fuel cells (PEMFCs) are some of the most efficient electrochemical energy sources for transportation applications because of their clean, green, and high efficiency characteristics. The optimization of catalyst layer morphology is considered a feasible approach to achieve high performance of PEMFC membrane electrode assembly (MEA). In this work, we studied the effect of the solvent on the catalyst layer of PEMFC MEAs fabricated using the electrostatic spray deposition method. The catalyst ink comprised of Pt/C, a Nafion ionomer, and a solvent. Two types of solvent were used: isopropyl alcohol (IPA) and dimethylformamide (DMF). Compared with the catalyst layer prepared using IPA-based ink, the catalyst layer prepared with DMF-based ink had a dense structure because the DMF dispersed the Pt/C-Nafion agglomerates smaller and more homogeneously. The size distribution of the agglomerates in catalyst ink was confirmed through Dynamic Light Scattering (DLS) and the microstructure of the catalyst layer was compared using field emission scanning electron microscopy (FE-SEM). In addition, the electrochemical investigation was performed to evaluate the solvent effect on the fuel cell performance. The catalyst layer prepared with DMF-based ink significantly enhanced the cell performance (1.2 A cm-2 at 0.5 V) compared with that fabricated using IPA-based ink (0.5 A cm-2 at 0.5 V) due to the better dispersion and uniform agglomeration on the catalyst layer.

• 한국결정성장학회지
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• 제30권5호
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• pp.174-182
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• 2020

최근 잉크젯 프린팅 기술을 이용한 인쇄전자 분야가 차세대 기술로서 각광받고 있으며, 복수의 프린트 헤드(head)로부터 다양한 잉크 형태의 소재를 정밀하게 출력하여 적층할 수 있는 3D 프린팅 기술에 관한 연구가 활발하게 진행되고 있다. 본 연구에서는 잉크젯 3D 프린팅 기술을 이용하여 광경화성 실리카 잉크와 PVP가 첨가된 나노 구리 잉크로 절연층과 전도층의 복합구조체를 제작하였다. 프린팅 구동 조건과 잉크의 유변학적 거동을 최적화하여 정밀한 광경화 실리카 절연층을 적층 제조하였으며, 절연층의 저항은 2.43 × 10¹³ Ω·cm의 값을 나타내었다. 광경화 실리카 절연층 위에는 액적 간격 제어를 통하여 나노 구리 전도층을 프린팅하였다. PVP 첨가 나노 구리 잉크의 소결은 IPL 광소결 공정을 이용하였으며, 어닐링 온도와 인가 전압 변화에 따른 전기적, 기계적 특성을 확인하였다. 100℃ 어닐링 온도와 700 V IPL 광소결 조건에서 PVP가 첨가된 나노 구리 전도층의 저항은 29 μΩ·cm으로 매우 낮으며, 광경화 실리카 절연층과의 접착력은 매우 우수한 것으로 확인하였다.

• 한국정보디스플레이학회:학술대회논문집
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• 한국정보디스플레이학회 2003년도 International Meeting on Information Display
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• pp.775-777
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• 2003

Several methods are available for the fabrication of electrode pattern for the plasma display panel(PDP) including screen printing and photolithographic method. Piezo type ink-jet printing method is considered to the method of choice for electrode patterning in manufacturing of PDP. Both silver ink and absorbent layer paste formulation were developed for ink-jet printing of electrode pattern. The ink-jet printing of silver electrode with preformed absorbent layer was especially suitable for the patterning of address electrode for high resolution PDP.

• 한국정보디스플레이학회:학술대회논문집
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• 한국정보디스플레이학회 2007년도 7th International Meeting on Information Display 제7권1호
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• pp.875-877
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• 2007

Zinc tin oxide (ZTO) sol-gel solution was synthesized for ink-jet printable semiconducting ink. Bottom-contact type TFT was produced by printing the ZTO layer between the source and drain electrodes. The transistor involving the ink-jet printed ZTO had the $mobility\;{\sim}\;0.01\;cm^2V^{-1}s^{-1}$. We demonstrated the direct-writing of semiconducting oxide for solution processed TFT fabrication.

• 펄프종이기술
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• 제33권2호
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• pp.41-48
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• 2001

This paper was made to evaluate the effect of the type of latex for coating on the printability by investigating the structure of pore such as the pore fraction, the number of pores, pore size and distribution of coated paper. The coated structure is mainly depend on the results of interaction between pigment and binder. It means that the structure of pore formed is chiefly affected by the type of latex. This physical properties of pore have a close relation with ink set-off associated with the drying rate, the speed of penetration of ink into base paper and printing gloss. Therefore it was necessary to find out the relationship between pore structure and the performance of printability by modifying the type of latex to vary the pore structure of coated paper. Acrylic latex was superior to S/B latex in the sedimentation volume, compressibility, smoothness, pore fraction and its number, the weight of transferred ink onto the coated paper and ink repellance. In contrast, water retention and ink setting were not good. in the comparison of anionic and amphoteric latex, amphoteric latex showed better performance in the thickness, smoothness, pore fraction and its number, pore size, the weight of ink transmitted and K&N ink receptivity, etc.

• 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.