Journal of the Korean Crystal Growth and Crystal Technology (한국결정성장학회지)

The Korea Association of Crystal Growth (한국결정성장학회)
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Thermal and chemical stability evaluation of white ceramic pigment for digital inkjet printing

디지털 잉크젯 프린팅용 흰색 세라믹 안료의 고온 및 화학적 안정성 평가

  • Kwon, Jong-Woo (Icheon Branch, Korea Institute of Ceramic Engineering & Technology (KICET)) ;
  • Lee, Ji-Hyeon (Icheon Branch, Korea Institute of Ceramic Engineering & Technology (KICET)) ;
  • Lee, Jong-Heun (School of Material Science and Engineering, Korea University) ;
  • Hwang, Kwang-Taek (Icheon Branch, Korea Institute of Ceramic Engineering & Technology (KICET)) ;
  • Kim, Jin-Ho (Icheon Branch, Korea Institute of Ceramic Engineering & Technology (KICET)) ;
  • Han, Kyu-Sung (Icheon Branch, Korea Institute of Ceramic Engineering & Technology (KICET))
  • 권종우 (한국세라믹기술원, 이천분원) ;
  • 이지현 (한국세라믹기술원, 이천분원) ;
  • 이종흔 (고려대학교 신소재공학부) ;
  • 황광택 (한국세라믹기술원, 이천분원) ;
  • 김진호 (한국세라믹기술원, 이천분원) ;
  • 한규성 (한국세라믹기술원, 이천분원)
  • Received : 2016.09.30
  • Accepted : 2016.10.20
  • Published : 2016.10.31
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Abstract

Ceramic pigments, which show good thermal and chemical stabilities, have been applied for various industry with development of digital printing technology. Ceramic inkjet printing has advantages of high efficiency of ink usage and eco-friendly process. Thus, the interest of the ceramic pigments with various function and color including CMYK (cyan, magenta, yellow, black) digital primary color is increasing. Here, we investigated the thermal and chemical stabilities of white ceramic pigment for digital inkjet printing process. The microstructure and crystal structure of MgO, $Al_2O_3$, $MgAl_2O_4$, $CeO_2$ were analyzed, and the stability with glaze were evaluated. In order to evaluate the applicability for digital inkjet printing, the chemical stability of white ceramic pigments at high temperature was investigated by characterization of the mixed color properties with CMYK ceramic pigments after firing process.

고온 및 화학적 안정성이 높은 세라믹 안료는 타 소재 대비 우수한 내구성을 가지며, 최근 잉크젯 프린팅 기술의 발전과 함께 산업적인 응용영역이 점점 확대되고 있다. 세라믹 잉크젯 프린팅 공정은 다양한 이미지를 인쇄 가능하고 높은 효율성을 가지는 친환경 공정이라는 장점으로 인해 다양한 분야에 적용이 시도되고 있어, 디지털 4원색인 CMYK(cyan, magenta, yellow, black) 세라믹 안료를 비롯하여 다양한 색상 및 기능성을 가지는 세라믹 안료에 대한 관심이 커지고 있다. 본 연구에서는 세라믹 잉크젯 프린팅에 적합한 white 세라믹 안료를 선정하기 위해 고온에서의 화학적 안정성 및 혼합 발색 거동에 대해 연구하였다. MgO, $Al_2O_3$, $MgAl_2O_4$, $CeO_2$ 조성의 세라믹 안료가 가지는 미세구조 및 결정구조를 분석하고 유약과의 반응성을 평가하였다. 또한 세라믹 잉크젯 프린팅에서 요구되는 고온 안정성을 평가하기 위해 CMYK 발색 세라믹 안료와 혼합한 뒤 열처리 공정을 거쳐 색상 혼합에 따른 화학적 안정성을 CIE $L^*a^*b^*$ 측정을 통해 분석하여 디지털 프린팅 공정으로의 적용가능성을 평가하였다.

Keywords

References

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