What is The Difference Between Release Paper and Release Film?
There are significant differences between release film and release paper. Release film is used to coat organic silicon release agents on the surface of environmentally friendly PET, PE, and OPP films, thereby exhibiting extremely light and stable release force on various organic pressure sensitive adhesives.
Different organic pressure-sensitive adhesives, such as Hot-melt adhesive, acrylic adhesive and rubber system pressure-sensitive adhesive, require different release force of release film. Products with different viscosities need to be isolated. Adjust the force accordingly to obtain a very light and stable release force during stripping.
The classification of release membranes can be divided into different substrates:
PE release film, PET release film, OPP release film, composite release film (i.e. the substrate is a composite material of two or more materials), etc.
According to the release force, it can be divided into:
Light peel off type peel off film, medium peel off type peel off film, heavy peel off type peel off film. Also known as silicone paper, anti stick paper. It mainly serves to isolate sticky objects such as adhesive tape, and usually needs to be peeled off and discarded during use. Nowadays, Z is widely used as a carrier for adhesive tape or rubber products. Of course, the application in the food, medical, and health industries will not be described in detail here.
Classification of release paper:
The classification of release paper can be divided into plastic and non plastic release paper. It can also be classified based on release agents, organic silicon, and non organic silicon release paper. There is plastic isolation paper because the isolation agent has a certain degree of permeability. If there are no obstacles, the release agent will penetrate the paper, leading to poor curing and excessive use of the release agent (which is too expensive).
Therefore, paper needs to be coated with plastic (commonly referred to as lamination). In China, polyethylene (PE) particles are usually used for lamination.
