What's difference between release paper and release film

What's difference between release paper and release film

Here is release paper and release film's construction:

release paper:

release film:

From the above picture, we can see a release agent is coated on the respective side of the base material. A barrier layer is pre-coated for release paper in order to prevent release agent soaking into the base paper. 

We take advantage of manufacturing from the base paper, release papers and films, and even adhesive materials by own productions as total technology, which enables to produce right release property to meet customer’s requirement. Representative compositions and features are explained here.

PET release liners resist heat better and are tougher than release papers, and therefore, many heavy-duty applications rely on them for increased support. Release Paper liners are one of the most cost-effective liner solutions available. They provide a wide range of adhesion strength, from low adhesion for sticker rolls and display racks to high adhesion for home and vehicle insulation.