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

The Korea Association of Crystal Growth (한국결정성장학회)
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Synthesis and characterization of thermally stable pink-red inorganic pigment for digital color

디지털 컬러용 pink-red 고온발색 무기안료의 합성 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) ;
  • Kim, Jin-Ho (Icheon Branch, Korea Institute of Ceramic Engineering & Technology (KICET)) ;
  • Cho, Woo-Suk (Icheon Branch, Korea Institute of Ceramic Engineering & Technology (KICET)) ;
  • Han, Kyu-Sung (Icheon Branch, Korea Institute of Ceramic Engineering & Technology (KICET))
  • 이원준 (한국세라믹기술원 이천분원) ;
  • 황해진 (인하대학교 신소재공학부) ;
  • 김진호 (한국세라믹기술원 이천분원) ;
  • 조우석 (한국세라믹기술원 이천분원) ;
  • 한규성 (한국세라믹기술원 이천분원)
  • Received : 2014.06.30
  • Accepted : 2014.07.18
  • Published : 2014.08.31
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Abstract

Digital ink-jet printing system has many advantages such as fast and fine printing of various images, high efficiency and low cost process. Generally digital ink-jet printing requires ceramic pigments of cyan, magenta, yellow and black with thermal and glaze stability above $1000^{\circ}C$ for the application of porcelain product design. In this study, pink-red colored $CaO-SnO_2-Cr_2O_3-SiO_2$ pigment was synthesized using solid state reaction. The synthesis conditions of $Ca(Cr,Sn)SiO_5$ pigment such as annealing temperature, amount of mineralizer and non-stoichiometric composition were optimized. Crystal structure and morphology of the obtained $Ca(Cr,Sn)SiO_5$ pigment were analyzed using XRD, SEM, PSA, FT-IR and effect of Cr substitution on the pigment color was analyzed using Uv-vis. spectrophotometer and CIE $L^*a^*b^*$ measurement.

최근 각광받고 있는 디지털 프린팅을 이용한 디자인 기법은 세밀한 표현과 다양한 이미지 구현이 가능하고, 원료의 낭비가 적어 효율성이 높은 장점을 가지고 있다. 디지털 프린팅 공정에서는 cyan, magenta, yellow, black이 기본적인 디지털 4원색으로 사용되며, 도자제품에 적용되는 세라믹 안료의 경우 $1000^{\circ}C$ 이상의 고온 소성이 가능하도록 우수한 열적, 유약 안정성과 발색 특성이 요구된다. 본 연구에서는 고상합성법을 이용하여 $CaO-SnO_2-Cr_2O_3-SiO_2$ 조성의 pink-red 고온발색 무기안료를 합성하였다. $Ca(Sn,Cr)SiO_5$ 세라믹 안료의 합성 조건에 따른 물성을 XRD, SEM, PSA, FT-IR를 이용하여 분석하였고, Cr 치환량 변화가 $Ca(Sn,Cr)SiO_5$ 무기 안료의 발색 거동에 미치는 영향을 Uv-vis.와 CIE 표색계 값($L^*a^*b^*$)을 기준으로 한 색도측정을 통해 관찰하였다.

Keywords

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