Pre-coated film is a process in which a plastic film is pre-adhesiveted, rewound, and then hot-pressed onto printed paper. The substrate is primarily biaxially oriented polypropylene (BOPP) film or polyester (PET) film, and the adhesive is either a hot melt adhesive or a low-temperature organic polymer resin. This process is simple to operate, requiring no adhesive preparation or drying during lamination. It is characterized by being pollution-free, highly efficient, producing high transparency of the finished product, and reducing the generation of volatile organic compounds (VOCs).
The product enhances the gloss and durability of printed materials and is widely used in book covers, food packaging, pharmaceutical packaging, and luxury goods packaging, and is expanding into specialized applications such as building insulation and electronic insulation. Pre-coated film technology originated in the late 1980s and is currently gradually replacing instant coating technology globally. Industry standards include QB/T 2889-2007 Biaxially Oriented Polypropylene (BOPP) Pre-coated Film.
