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Characterization and synthesis of aqueous pink-red ceramic ink for digital inkjet printing

잉크젯 프린팅용 pink-red 수계 무기잉크의 제조 및 특성평가

  • Lee, Won-Jun (Icheon Branch, Korea Institute of Ceramic Engineering & Technology (KICET)) ;
  • Hwang, Hae-Jin (School of Material Science and Engineering, Inha University) ;
  • Han, Kyu-Sung (Icheon Branch, Korea Institute of Ceramic Engineering & Technology (KICET)) ;
  • Cho, Woo-Suk (Icheon Branch, Korea Institute of Ceramic Engineering & Technology (KICET)) ;
  • Kim, Jin-Ho (Icheon Branch, Korea Institute of Ceramic Engineering & Technology (KICET))
  • Received : 2015.01.26
  • Accepted : 2015.02.06
  • Published : 2015.02.28

Abstract

Ceramic ink-jet printing technology in art tiles, decorated tablewares and other porcelain products has many advantages of fast and precision printing of various images with high efficiency and low cost. For the application to ink-jet printing, ceramic ink requires a stable dispersibility with nano-sized pigments. In this paper, characteristics of pink-red aqueous ceramic ink for ink-jet printing was demonstrated. $CaCr_{0.1}Sn_{0.8}SiO_5$ pigment was synthesized using solid state reaction and deagglomerated using attrition milling. The aqueous ceramic ink contains 10 wt% of the obtained $CaCr_{0.1}Sn_{0.8}SiO_5$ nanopigment with 0.4 wt% of sodium dodecyl sulfate (SDS) as a dispersion agent. Viscosity of $CaCr_{0.1}Sn_{0.8}SiO_5$ aqueous ceramic ink was adjusted using 0.18 wt% of polyvinyl alcohol (PVA) for a suitable jetting from the nozzle. The prepared pink-red ceramic ink showed a good jetting property with formation of a single sphere-shaped droplet after $180{\mu}s$ without a tail and satellite droplet.

세라믹 잉크젯 기술은 아트타일, 장식용 도자기 등에 이용되고 있으며, 원료의 효율이 높고 낮은 제작비용으로 다양한 이미지를 빠르고 정확하게 인쇄할 수 있다는 장점을 가지고 있다. 잉크젯 프린팅 타일에 나노세라믹안료를 적용하기 위해서는 안정적인 잉크분산성 확보가 필수적이다. 본 논문에서는 잉크젯 인쇄용 수계 pink-red 세라믹잉크의 특성을 보여주고 있다. $CaCr_{0.1}Sn_{0.8}SiO_5$ 안료는 고상법을 이용하여 합성하였고, 잉크 토출 시 잉크젯 헤드의 노즐 막힘을 방지하기 위해 어트리션밀을 이용하여 분쇄한 안료를 사용 하였다. 수계 세라믹잉크 제조 시 $CaCr_{0.1}Sn_{0.8}SiO_5$ 나노안료의 농도는 10 wt%로 고정하였고, sodium dodecyl sulfate(SDS)를 0.4 wt% 첨가 하였을 때 최적의 분산성을 가지는 것을 확인할 수 있었다. 또한 수계 세라믹 잉크의 원활한 토출을 위해 polyvinyl alcohol(PVA)을 0.18 wt% 첨가하여 점도 조절을 하였다. 제조된 pinkred 세라믹 잉크는 토출 시 $180{\mu}s$ 이후 구형의 단일액적을 형성 하는 것을 확인할 수 있었다.

Keywords

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Cited by

  1. Optimization of Aqueous Nano Ceramic Ink and Printing Characterization for Digital Ink-Jet Printing vol.54, pp.6, 2017, https://doi.org/10.4191/kcers.2017.54.6.01