The film of this pre-coating film laminating machine is formed at one time, and the consumables used have been coated with glue. When the film is coated, the glue is melted by heating, and then the film is adhered to the printed matter by pressing. This kind of film coating equipment is cheap, simple to operate, and does not generate harmful gases during operation. It is a trend in the development of film coating. In today's society that is increasingly environmentally friendly, I believe that this technology will one day replace the pre-coated pre-coated film and become The main laminating technology in the domestic printing industry.
        Because the water-based glue can dissolve the powder sprayed on the surface of the printed matter, when the snowflakes appear on the coated product, it feels incomprehensible. In fact, the reason is very simple. The water-based glue itself is also limited by the solubility. If the print powder is too large, the excess part cannot be When completely dissolved by the glue, a large area of snowflakes will appear.
        There are three ways to solve this situation:
        1. Coordinate the upper and lower processes to minimize the amount of powder sprayed during printing;
        2. The amount of glue should be properly increased to increase the ability of the glue to dissolve the powder;
        3. Clean the suspended powder on the surface of the printed matter before laminating
        Since the water-based coating adhesive dries quickly, if it does not flow at rest, it will dry into a rubber skin and become a solid block. If it is attached to the glue roller or pressure roller, it will cause the local glue to be too small, or the local pressure will be too large when applying pressure. Therefore, keep the glue roller and pressure roller clean during the lamination process.

        If there is too much dust in the surrounding environment, there is dry rubber and cut film fragments in the glue, the coated product will have snowflakes, so you should pay attention to the environmental hygiene. If you don’t use the glue, you should pour it back into the glue bucket to seal it, or take Filtering method before glue.