For food production companies, for more than 30 years, people have been exploring packaging materials and containers that can replace glass bottles and tins, and polyester film is the best material that can be used at present. It has the characteristics of light weight and can reduce the transportation cost. But not every kind of PET polyester film is suitable for food packaging.

In the early 1970s, acrylonitrile plastic containers took the lead in presenting in shopping malls. However, the US Food and Drug Administration (FDA) later withdrew its approval of the use of this container material in food. The main reason is that too much of a chemical substance in this packaging material will migrate to the contents of the packaging container. Polyvinyl chloride (PVC) plastic containers quickly become unexpected information because of environmental problems.

The presentation of PET film materials has made food packaging develop rapidly. The first company to use PET bottles to package cool drinks was Coca Cola Company of the United States. They replaced 1-liter glass bottles with 1.5-litre polyester bottles, which led to a 27% increase in retail sales. After that, the food and drink packaged in PET containers gradually became the "hot goods". The light weight and robustness of PET containers attract customers and are expected by shopping malls. PET materials also have the advantage of being able to form any shape (good applicability). Together, they can be processed into a color that suits everyone's hobby and can be printed with words and pictures.