Production Process of Release Film

Production Process of Release Film

PET release film is also referred to as heat transfer film, stripping film, separator film, slip film, thinner paper, silicone film, anti-adhesive film, silicone release paper, silicon paper and mask film. It mainly serves as a carrier for vacuum aluminum plating. The process involves placing PET film in a vacuum aluminum plating machine. After aluminum deposition, the film is glued and laminated with paper. The PET film is then stripped off, and the aluminum layer transfers onto the cardboard surface via adhesive force to form aluminized cardboard.

Manufacturing flow of aluminized cardboard: PET base film → release layer → color layer → aluminum plated layer → adhesive layer → transfer onto cardboard.