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Advantages of glass packaging

How are glass packaging bottles made? 

First, the mold must be designed, determined, and manufactured. Quartz sand is the main raw material of glass, and other auxiliary materials are added to melt into liquid at high temperature. Then, the glass bottle is formed by injection into a mold, cooling, cutting, and tempering. Glass bottles usually have hard markings and are also made of mold shapes. Glass bottles can be divided into three types according to their manufacturing methods: manual blowing, mechanical blowing and extrusion molding. Glass bottles can be divided into the following types according to their composition: soda glass, lead glass and borosilicate glass.

The main raw materials of glass bottles are natural ore, quartz stone, caustic soda, limestone and so on. Glass bottles have high transparency and corrosion resistance, and will not change the properties of the material when in contact with most chemicals. The manufacturing process is simple, the shape is free and changeable, the hardness is large, heat-resistant, clean, easy to clean, and has the characteristics of being reusable. As packaging materials, glass bottles are mainly used for food, oil, wine, beverages, condiments, cosmetics and liquid chemical products. They are widely used. However, glass bottles also have their disadvantages, such as large weight, high transportation and storage costs, and poor impact resistance.

The advantages of glass packaging materials

1. The glass material has good barrier properties, which can well prevent the intrusion of oxygen and other gases into the contents, and at the same time prevent the volatile components of the contents from volatilizing into the atmosphere;

2. The glass bottle can be reused, which can reduce packaging costs.

3. Glass is easy to change color and transparency.

4. The glass bottle is safe and hygienic, has good corrosion resistance and acid corrosion resistance, and is suitable for packaging acidic substances.

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