Advantages of plastic packaging bottles in the field of packagin

China has had plastic bottles since ancient times. In the past, academic circles have always believed that plastics were very rare in ancient times, and only a few ruling classes could own and use them. However, recent research has found that the production and manufacture of ancient plastics is not difficult, but it is not easy to preserve, so it will be rare in later generations. Plastic bottles are traditional beverage packaging containers in China, and plastics are also a very valuable packaging material. 

In terms of packaging containers, the original packaging of the container is a glass bottle followed by a paper composite can, followed by a pet bottle, and now the rigid pet bottle is already the largest packaging material for carbonated and non-carbonated beverages, which was already in the United States in 1991. 26.5% of beverage packaging containers, glass bottles have dropped from 28.9% in 1981 to 19.5%, and aluminum cans accounted for 39%. And plastic bottles are growing at an annual rate of more than 3%. Plastics will continue to develop at a much faster rate than other packaging materials, which is inseparable from its packaging characteristics that cannot be replaced by other packaging materials.

Advantages of plastic packaging bottles in the field of packaging:
1. The plastic bottle has good barrier properties, can prevent the gas such as oxygen from invading the contents, and can prevent the volatile components of the contents from volatilizing in the atmosphere.
2. Plastic bottles can be used repeatedly, which can reduce packaging costs.
3. Plastics can easily change color and transparency.
4. The plastic bottle is safe and hygienic, has good corrosion resistance and acid corrosion resistance, and has the advantages of heat resistance, pressure resistance and washing resistance, and can be both high temperature sterilization and low temperature storage.