Nano calcium carbonate is also known as ultrafine calcium carbonate [1]. The name of the standard is ultrafine calcium carbonate. The most mature industry for the application of nano calcium carbonate is the plastic industry, which is mainly used in high-grade plastic products. It can improve the rheology of plastic masterbatches and improve their formability. Used as plastic filler has the effect of toughening and reinforcing, improving the flexural strength and flexural elastic modulus of plastics, heat distortion temperature and dimensional stability, while also giving plastics heat hysteresis. Nano calcium carbonate is used in ink products to show excellent dispersion and transparency and excellent gloss, as well as excellent ink absorption and high dryness. Nano calcium carbonate is used as an ink filler in resin ink, which has good stability and high gloss, and does not affect the drying performance of printing ink. Strong adaptability and other advantages.