Why is the cake box made of PET material?

There are two kinds of cake boxes commonly used: paper and pet. Among them, pet transparent cake boxes have sprung up in recent years. Why is the cake box made of pet and what are its advantages? Now let's have a look!

First of all, PET material has high transparency, can block ultraviolet rays and good luster. The cake box made with it can directly see the beautiful cake inside, which makes the cake more attractive and increases the overall beauty of the cake box. Secondly, pet has many advantages. For example, it has good hygiene and can be directly used in food packaging; Resistant to oil, fat, enoic acid, dilute alkali and most solvents; It has good mechanical properties, the impact strength is 3 ~ 5 times that of other films, and has good folding resistance; Low gas and water vapor permeability, good gas, water, oil and odor resistance; It can be used for a long time in the temperature range of 55-60 ℃, and can be used for a short time Resistant to 65 ℃ high temperature, can be used It can withstand - 70 ℃ low temperature, and has little effect on its mechanical properties at high and low temperature.