What is the frosting process of glass bottles?

There are many manufacturing processes for glass bottles. Some manufacturers will use frosting process in order to make glass bottles more beautiful. What is the frosting process?

Introduction to frosting technology of glass bottles:

Frosting is a decorative method in which a certain area of glass colored glaze powder is adhered to the glass in process. After baking at a high temperature of 580 ~ 600 ℃, the glass colored glaze coating melts on the glass surface and shows a different color from the main body of the glass. Adhering glass colored glaze powder can be painted with a row pen or roller. Through silk screen printing, the hollow pattern of frosted surface can be obtained.

 The method is as follows: on the surface of glass products, a layer of pattern pattern formed by flux inhibitor is screen printed. After the printed pattern is air dried, it can be frosted. Then after high-temperature baking, the frosted surface without pattern will melt on the glass surface, while the sand surface covered on the pattern cannot be melted on the glass surface due to the action of flux inhibitor in the place of silk screen printing pattern. After baking, the transparent floor space pattern will appear through the translucent sand surface, forming a special decorative effect. Frosted screen printing flux inhibitor is composed of iron oxide, talc powder and clay. It is ground by ball mill with a fineness of 350 mesh. It is mixed with adhesive before screen printing.