What is the softness and hardness of the original PET film?

PET original film is a common plastic film, and its hardness has a crucial influence on its use effect. The hardness of the original PET film is mainly related to the following factors.

First of all, the softness and hardness of the original PET film is related to the choice of its raw material. The original PET film is usually made of polyester resin, and the hardness and softness of polyester resin depend on its molecular weight, crystallinity, polycondensation degree, etc. Therefore, by choosing different raw materials, PET original films with different hardness and softness can be obtained.

Secondly, the softness and hardness of the original PET film are related to its processing technology. The processing process of PET original film includes extrusion, stretching, calendering, coating and other links, and the process parameters of each link will affect the softness and hardness of PET original film. For example, the stretching ratio, temperature, speed and other parameters in the stretching process will affect the hardness and softness of the original PET film.

Finally, the hardness of the original PET film is also related to its use environment. PET raw film is usually used to make food packaging, medical supplies, electronic product casings, etc. It needs to have different hardness and softness to meet different needs in different use environments.

To sum up, the hardness of PET original film depends on many factors such as raw material selection, processing technology and use environment. Through reasonable selection and manipulation of these factors, PET original film suitable for different occasions can be obtained.