PUR And Film Lamination Line

The PUR coating and laminating line is primarily used for high-strength lamination of various functional films (such as decorative films, protective films, and functional films) onto various substrates (metal, plastic, and wood). The PUR coating and laminating line utilizes polyurethane reactive hot melt adhesive (PUR), which forms an irreversible cross-linking structure upon moisture curing, providing bond strength and durability far exceeding that of conventional hot melt adhesives. This line can handle a wide range of substrate and film combinations, including metal, plastic, wood, and glass, meeting the lamination needs of diverse industries. The laminated surface is smooth, bubble-free, and has a clear texture, perfectly preserving the original effects and functionality of the decorative film.

A precision metering system heats and melts solid PUR adhesive pellets into a liquid state. A slot-type coating head or roller coating device applies the adhesive to the substrate surface with precise thickness and uniformity. The pre-treated decorative or functional film is laminated to the coated substrate using a precision alignment device under the control of a tension control system. The laminating rollers apply appropriate pressure and temperature to ensure a perfect, bubble-free, and wrinkle-free bond between the film and substrate.