Glaze, photovoltaic backboard glass and preparation method of photovoltaic backboard glass

The invention belongs to the technical field of printing ink, and discloses glaze, photovoltaic backboard glass and a preparation method of the photovoltaic backboard glass. Wherein the glaze comprises water-based varnish, a pigment filler and a glass flux; the thermal expansion coefficient of the glass flux at 30-300 DEG C is 70 * 10 -80 * 10 /K. The preparation method of the glaze comprises the following steps: mixing and dispersing the water-based varnish, the pigment filler and the glass flux to obtain mixed slurry; and grinding the mixed slurry until the fineness is less than 10 microns to obtain the glaze. The invention further provides photovoltaic backboard glass which comprises backboard glass and a glaze layer arranged on the surface of the backboard glass, and the glaze layer is formed by printing the glaze on the surface of the backboard glass. The photovoltaic backboard glass has excellent impact resistance. 本发明属于油墨技术领域，公开了一种釉料、光伏背板玻璃及其制备方法。其中，该釉料包括水性调墨油、颜填料、玻璃熔剂；玻璃熔剂在30～300℃的热膨胀系数为70×1