Working principle of the laminating machine:

The working principle of the laminating machine is to first coat the adhesive on the plastic film through the roller coating device, and then soften the film by heating the hot pressing roller, and then press the printed matter coated with the substrate and the film to form a paper-plastic laminating product. The working principle of the ready-to-apply laminating machine is that the film coating is a process that uses the ready-to-apply laminating machine to apply the film immediately with the glue coating for paper-plastic composite. It is mainly composed of the film coating factory or processing workshop, which, according to the needs, will coat the plastic film on the roll with adhesive, and then dry (slightly) compound and press the paper film together to form a film coating product. That is, there are automatic and semi-automatic coating equipment with the same basic working principle; The process flow mainly includes unwinding → gluing and coating → drying → composite → slitting → finished product stacking. Working principle of precoating film laminating machine precoating film laminating machine is a special equipment that combines printed matter with precoated plastic film. Its main structure is composed of four parts: film unwinding, automatic input of printed matter, hot-press laminating and automatic winding. Compared with instant coating film laminating machine, it does not need adhesive coating and drying parts, so it is compact in structure, small in volume, low in cost, easy to operate, easy to use, and flexible in production efficient. The lamination of precoated film and paper printing can only be done by hot pressing. Suitable for all kinds of laminating machines, laminating machines and plastic sealing machines with hot pressing function. That is to say, the bridge-type composite laminating machine with glue wet laminating process can be fully used for precoating without any modification.