Preparation and Properties of Ceramic Ink Slurry with High Stability for Inkjet Printing of Ceramic Tiles
Water-borne ink-jet printing technology is an innovative method to fabricate a glaze layer on the surface of ceramic tiles,and the stability of the water-borne ceramic ink slurry is a key factor in deciding its printing performance.A series of modified ceramic ink slurry for inkjet printing of ceramic tiles was prepared by the dispersion method using unmodified ceramic ink slurry purchased from the market.The effects of type,content and other factors of dispersants on the long-term suspension stability,viscosity and surface tension of ceramic ink slurry were studied.The results show that compared with the unmodified ceramic ink slurry,the ceramic ink slurry with addition of 3 wt％PAAS has good viscosity(52.42 mPa· s)and surface tension(68.3 mN/m),which can meet the requirements of inkjet printing.In addition,the PAAS modified slurry showed no adverse characteristics of hard precipitation in the 30-day static settlement process and showed higher suspension stability,which was attributed to the formation of double charge between the dispersant PAAS and the plasma surface and the stability of electrostatic steric hindrance by relying on long molecular chains.The relevant results of this study have guiding significance for the development of a novel ceramic ink slurry with high stability for ceramic tile surfaces.
NETL
NSTL
万方数据
维普
