15-micron laser-etched, silver PET transfer film is used for anti-counterfeiting and decorative purposes on cigarette packaging.

15-micron laser-etched, silver PET transfer film is used for anti-counterfeiting and decorative purposes on cigarette packaging.

The application of primer coating to PET film is a crucial process that solves adhesion problems through a combination of chemical and physical mechanisms. Its core value lies in improving adhesion and process compatibility, supporting the high-quality application of PET in printing, packaging, electronics, optics, and other fields.

Core Process: Base film pretreatment → Graphic/metal layer processing → Composite transfer → Peeling and recycling → Post-processing
Base film and release layer: PET (high temperature resistance, precise positioning) or BOPP (low cost) is selected as the base film, and a release layer (silicone oil type) is coated to facilitate subsequent peeling;
Holographic molding: Holographic/laser microstructures are molded on the release layer at high temperature and pressure (130–150℃) to form anti-counterfeiting textures;
Vacuum aluminum plating: An ultra-thin aluminum layer (approximately 40–60nm) is vacuum-deposited on the molded surface to enhance the metallic feel and reflectivity. Local aluminum plating can also be used to create a镂空 (hollowed-out) effect;
Coating adhesive layer: A transfer adhesive (mainly water-based environmentally friendly adhesive) is coated on the aluminum-plated surface to ensure strong adhesion to the base paper;
Composite and transfer: The transfer film is laminated and pressed onto the cigarette pack base paper (mainly 200–230g white cardboard);
Peeling off the base film: After curing, the PET/BOPP base film is peeled off (recyclable), and the aluminum layer and holographic pattern are permanently transferred to the cardboard surface;
Post-processing: The transferred cardboard undergoes offset printing, hot stamping, die-cutting, and creasing to produce the finished cigarette label.

Other material clear or laser pet with primer coating ,pls contacting us.