Chemical treatment method for surfaces of glass bottle

Abstract

The invention discloses a chemical treatment method for surfaces of a glass bottle. The method comprises the following steps: a chemical treatment agent is prepared from potassium chloride or oxalic acid and a siliceous inorganic substance according to a final concentration of potassium chloride / oxalic acid of 0.1 to 0.2 mol / L and a final mass concentration of the siliceous inorganic substance of 5% to 30% in the agent, wherein the siliceous inorganic substance is one or two or more of sodium silicate, potassium silicate, fluosilicic acid or silicic acid; a sodium precipitation atomization glass bottle is completely immersed in the chemical treatment agent with a temperature of 20 to 50 DEG C for 10s to 10min; and the glass bottle is washed 2 to 3 times with clear water. The method has the characteristics of simple process and high chemical stability of surfaces.

Description

technical field [0001] The invention relates to the field of chemical technology, in particular to a method for chemically treating the surface of a glass bottle. Background technique [0002] The production of glass bottles and jars is made by automatically weighing silica sand, alkali powder, lime, broken glass and other raw materials according to the formula and mixing them with a mixer to form a mixture, which is then prepared by physical and chemical processes such as high-temperature melting and molding. The production process and use characteristics of glass bottles and jars determine that the chemical stability of the surface is one of the main issues affecting the quality of their products. [0003] The surface chemical stability of glass bottles depends on the properties of the glass on the inner surface. Ordinary soda-lime glass packaging bottles are chemically treated on the inner surface to dealkalize the inner surface and form a new thin-layer glass packaging c...

AI Technical Summary

Problems solved by technology

The frosting treatment process is an early method to solve the chemical stability of the glass bottle surface, but this method has many manufacturing processes, increases the production cost, has little effect on improving the strength of the glass, and the released sulfide will also cause environmental pollution; Add such as B in the glass 2 o 3 , it will increase the production cost, thereby reducing the market competitiveness of the enterprise

[0005] For areas where the utilization rate of coal energy is high, sulfides and nitrides released after combustion are likely to cause acid rain, and the humidity is high, sodium ions in the thin layer area on the surface of ordinary glass bottles are easy to combine with H + Exchange, the phenomenon of sodium precipitation and atomization occurs, which reduces the transparency of the glass bottle and affects the appearance quality of the glass bottle and the quality of the contents.