Vacuum laminating machine has experienced a history of about 20 years in China. It can make all kinds of paper with color printing increase the strength after being laminated by the vacuum laminating machine, and the sense of thickness and texture will occur, which will enhance the "temperament" of the color printing paper, and use this to make various bags, packaging boxes, book covers , Samples and other products. However, the general automatic laminating method uses the method of automatic laminating with glue, such as the use of solvent-based glue, water glue and hot melt adhesive (pre-coated on the film and hot pressing), etc., but the automatic laminating without glue is different. herein.
        First of all, it does not choose the conventional biaxially oriented polypropylene film (OPP), but selects the high-pressure polyethylene blow molding as the main material of the PE film, that is because of its readily available hot melt and plasticity. However, PE film is a kind of material with weak van der Waals force. The waxy additive composition makes a weak interface layer appear on the surface. Therefore, in the hot melt at a lower temperature, its adhesion to paper is also smaller, so this makes this unmodified skill of little value. But when we stop the special strong treatment on one side of the PE film in the future, this scene will be greatly changed. When we use a fully automatic laminating machine to hot-melt PE film on color printing paper, its peel strength has been significantly improved. It can withstand rubbing without foaming, withstand temperature detection of -20 ℃ ～ 120 ℃, withstand rolling, cutting, etc. Suppose we put a layer of auxiliary materials between the hot roller and the PE film to work together. The product and auxiliary materials come out of the machine together, and the products are removed from the auxiliary materials, and waste occurs. Because of the different auxiliary materials, the same PE film can be used to make a variety of fully automatic laminating products such as optical film, matte film, and laser film. And from the visual effect, it is almost inseparable from the OPP automatic laminating with glue.
        Vacuum laminating machines are categorized with different materials and laminating skills that the equipment ends according to the temperature and use of the original materials used.
        Cold mounting: The method of mounting the protective film on the surface of the image by cold pressing at normal temperature is called cold mounting, during which there are single-sided mounting and double-sided mounting, and there are also manual and self-exposed film mounting in the operating method. The cold mounting technique has the characteristics of simple operation, good effect, and low cost. It is widely used in the post-production of advertising light boxes, engineering drawings and wedding photography.

         Vacuum laminating machine hot lamination: The mounting method of special hot film on equipment heated to a certain temperature (about 100-180 ° C) is called hot lamination, which can be divided into single-sided hot lamination and double-sided hot lamination. Its light permeability and water resistance are good, and its hardness is strong, which is suitable for the post-production of advertising images in other occasions. However, hot mounting equipment and consumables are more expensive, messy in operation, large in energy consumption, and expensive. Use a special automatic laminating machine to vacuum the film and draw it, and set it at a certain temperature to finish the laminating. Its operation method is messy, the cost is large and the picture specification is subject to certain restrictions, but the mounting quality is very high. The picture has a strong texture and is suitable for photos.