The laminating machine in the laminating machine is to coat a plastic film with an adhesive, and combine it with the printed matter with paper as the substrate, press the blanket cylinder and the heating cylinder, and form a paper-plastic product. The coated printed matter has an extra layer of thin and transparent plastic film on the surface, which makes the surface smoother and brighter, which not only improves the gloss and fastness of the printed matter, and prolongs the service life of the printed matter, but the plastic film is also waterproof, Anti-fouling, abrasion resistance, folding resistance, chemical corrosion resistance and other protective functions. If a transparent bright film is used for laminating, the printed pictures and texts of the laminating products will be more vivid and three-dimensional, which is especially suitable for the packaging of green food and other commodities, which can arouse people's appreciation of beauty and arouse appetite. More can drive people's consumption.
        Classification of laminating machine:
        1. Thermal laminating machine
        A. Existing coating type laminating machine:
        The operation of this type of equipment includes three parts: gluing, drying, and hot pressing. The operation requirements are relatively high. The advantage is that the quality of the finished product is reliable. Its fatal disadvantage is that it will produce gas that affects human health during processing. Therefore, this technology is currently in Europe and America It has been completely banned in developed countries, but due to the low cost of this kind of coating consumables, it is currently widely used in large and medium-sized traditional printing plants in China.
        B. Pre-coating film laminating machine:

        This kind of machine lamination is a one-time molding, and the consumables used have been coated with glue. When laminating, the glue is melted by heating, and then the film is bonded to the printed matter by pressure. This kind of laminating equipment is cheap, simple to operate, and does not generate harmful gases during operation. It is a trend in the development of laminating. In today’s society that is increasingly focusing on environmental protection, it is believed that this technology will one day replace the existing pre-coated film and become The main laminating technology in the domestic printing industry. The disadvantage is that this kind of technology is not very mature in China, and there are still some problems to be solved, such as: single-sided film curling (currently there are single-sided anti-curling machines, but the price is higher), printed matter with silicone oil Difficult to coat etc. At present, it is widely used in short-run printing and digital fast printing industries.