What Material Is Stretch Film Made Of?

With the development of the times, stretch film has begun to be used in more and more industries, and stretch film makes our life or work more convenient. So what is stretch film? We all know that stretch film is a translucent, glossy, soft film material, stretch film has good chemical stability, heat sealability, water resistance and moisture resistance.

Since stretch film has such a powerful effect, what material is stretch film made of? , what are its characteristics? Let's take a look!

Stretch film is made of polyethylene terephthalate as raw material, made of thick sheet by extrusion method, and then biaxially stretched. It is a colorless transparent, glossy stretch film with excellent mechanical properties, high rigidity, hardness and toughness, puncture resistance, friction resistance, high temperature and low temperature resistance. Chemical resistance, oil resistance, air tightness and fragrance retention are good, and it is one of the commonly used substrates for permeatable composite stretch film. However, the price of polyester stretch film is higher, the general thickness is 12μm, commonly used as the outer material of cooking packaging, and the printability is better.