Glass bottle production process mainly includes: ① raw material pre-processing. The massive raw materials (quartz sand, soda ash, limestone, feldspar, etc.) are crushed, the wet raw materials are dried, and the iron-containing raw materials are treated with iron removal to ensure the quality of the glass. ② Preparation of compound materials. ③ Melting system. The glass compound is heated at high temperature (1550~1600 degrees) in the pool kiln or pool furnace to form a uniform, bubble-free liquid glass that meets the molding requirements. ④ Forming. The liquid glass is put into the mold to make the glass products of the required shape, such as plates, various utensils, etc. ⑤ Heat treatment. Through annealing, quenching and other processes, eliminate or produce the internal stress of the glass, phase separation or crystallization, and change the structural state of the glass.

Glass packaging materials and containers have many advantages: 1, glass materials have good barrier properties, can well prevent oxygen and other gases from invading the internal contents, and can prevent the volatile components of the internal contents from volatilizing to the atmosphere;

2, glass bottles can be used repeatedly, can reduce packaging costs;

3, the glass can easily change the color and transparency;

4, glass bottles are safe and sanitary, have good corrosion resistance and acid corrosion resistance, suitable for acidic substances (such as vegetable juice drinks, etc.) packaging;

5, in addition, because the glass bottle is suitable for the production of automatic filling production line, the development of domestic glass bottle automatic filling technology and equipment is also more mature, and the use of glass bottles to pack fruit and vegetable juice drinks has certain production advantages in China.