Ceramic ink-jet printing has become a widespread technology in ceramic tile and ceramicware industries, due to its capability of manufacturing products on demand with various designs. Generally, thermally stable ceramic inks of digital primary colors(cyan, magenta, yellow, black) are required for ink-jet printing of full color image on ceramic tile. Here, we synthesized an aqueous glass-ceramic ink, which is free of Volatile organic compound(VOC) evolution, and investigated its inkjet printability. CoAl2O4 inorganic pigment and glass frit were dispersed in aqueous solution, and rheological behavior was optimized. The formulated glass-ceramic ink was suitably jetted as single sphere-shaped droplets without satellite drops. After ink-jet printing and firing processes, the printed glass-ceramic ink pattern on glazed ceramic tile was stably maintained without ink spreading phenomena and showed an improved scratch resistance.

• 권종우(한국세라믹기술원) | Jong-Woo Kwon (Icheon Branch, Korea Institute of Ceramic Engineering & Technology(KICET), Icheon 17303, Republic of Korea)
• 이종흔(고려대학교 신소재공학부) | Jong-Heun Lee (Department of Material Science and Engineering, Korea University, Seoul 02841, Republic of Korea)
• 황광택(한국세라믹기술원) | Kwang-Taek Hwang (Icheon Branch, Korea Institute of Ceramic Engineering & Technology(KICET), Icheon 17303, Republic of Korea)
• 김진호(한국세라믹기술원) | Jin-Ho Kim (Icheon Branch, Korea Institute of Ceramic Engineering & Technology(KICET), Icheon 17303, Republic of Korea)
• 한규성(한국세라믹기술원) | Kyu-Sung Han (Icheon Branch, Korea Institute of Ceramic Engineering & Technology(KICET), Icheon 17303, Republic of Korea) Corresponding author