Is the release paper on the back of wallpaper poisonous?

The release film is non-toxic, harmless, tasteless, high in tensile strength, good in stiffness, flame-resistant, non-cracking, not easy to be damaged, excellent in electrical and optical properties, good in oxygen and moisture resistance, cold-resistant (-70 degrees), heat-resistant (+200 degrees), corrosion-resistant and stable in shrinkage. Uses of release film: Release film is mainly used for electrical, insulation, packaging, magnetic containers, films, video tapes, floppy disks, films, videos and entertainment software. It is widely used, such as foil film, aluminized film, printed film, packaging film, packaging material, composite material, laser anti-counterfeiting composite film, drawing paper, electrical insulation material, capacitor and so on.