The invention relates to a preparation method for a
ceramic medium printing
sizing agent and belongs to the technical field of printing
sizing agents. According to the invention, air bubbles with larger diameters are eliminated through slow mechanical stirring and then a de-
foaming agent is used for replacing the bubble walls of the air bubbles, so that the air bubbles with small diameters in thesizing agent are merged into the air bubbles with larger diameters; the pressure in the air bubbles is increased in the manner of vacuumizing and then the air bubbles are separated from the
sizing agent and are broken, so that the de-foaming effect can be achieved; when the liquid
evaporation pressure is ignored, the interfacial energy of
solid-
liquid interface is equivalent to the interfacial energy of
solid surface according to young's equation, and the
wetting property between water and
powder can be promoted in the manner of increasing the interfacial energy of
ceramic powder surface, so that the purpose of reducing air bubbles can be achieved; in the cooling stage of the preparation process of modified ceramics, the interfacial energy of ceramics can be increased by increasing the
cooling speed of the ceramics, so that the air bubbles can be reduced. The
ceramic medium printing sizing agent prepared according to the invention has the characteristics of excellent
wetting property and few air bubbles, the production equipment is common and the
raw material cost is low.