Usage: Gravure printing ink, planographic offset printing ink etc Sanmu CC-OT is a Nano-active calcium carbonate after special surface treatment,applicable in the industry of high standard printing ink. This product is the main paint in the printing ink, well dispersed and good transparency to improve the brightness and covering performance. It also has excellent absorbency and high dryness, suitable for high speed printing. The feature indicators such as concentration of printing ink color and the ink features can be adjusted to also decrease the cost of printing ink.