Working principle of laminating machine
First, apply the adhesive to the plastic film by a roller coating device, and heat it by a hot press roller to soften the film, and then press the printed matter coated with the primer and the film to form a film-in-one film product. The working principle of the double-coated laminating machine, that is, the coating is a process of using the instant-coating laminating machine to immediately stick the film with the glue to carry out the paper-plastic composite process. It mainly consists of a coating film processing plant or a processing workshop. The roll plastic film is coated with an adhesive as required, dried (slightly) compounded, and pressed together to form a film product. That is, there are two types of film coating equipment: automatic and semi-automatic. The basic working principles are the same; the process flow mainly includes unwinding → gluing and coating → drying → compounding → slitting → finished product accumulation. Working principle of pre-coated laminating machine Pre-coated laminating machine is a special equipment for compounding printed matter with pre-coated plastic film. The main structure is composed of film unwinding, automatic input of printed matter, hot pressing compound, and automatic rewinding. Part of the composition, compared with the instant coating laminating machine, does not require the coating and drying of the adhesive agent, so the structure is compact, small in size, low in cost, easy to operate, ready to use, start-up, large production flexibility and high efficiency . The compounding of the pre-coated film and the paper printed matter only needs to be hot pressed. It is suitable for all kinds of laminating machines, laminating machines and plastic sealing machines with hot pressing function. The bridge-type compound laminating machine of the glue-on-wet composite process does not require any modification, and can be completely coated with pre-coated film.
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