The effect of the laminating machine itself directly affects the quality of the printed matter and directly affects the interests of customers.
        The heating laminator melts the glue by heating, and then adheres the film to the printed matter by pressurization. The curling of the single-sided lamination has always been a headache. Especially for small lamination machines, then the heating lamination machine alone What causes curling of the facial mask?
        After many times using a small pre-coating hot laminating machine to test the printing of various materials, we found that the single-sided lamination curled, generally curled in the direction of the film, and could not be kept flat, wrinkled. If the mark is serious, it will automatically curl into a cylindrical shape, which will affect the effect of the subsequent process. The main reasons for single-sided film curling:
        1. The coated paper is too thin; although the current laminating machine is suitable for laminating paper prints of a variety of materials, the thinner the paper, the easier it is to deform and curl
        2. The paper has much water content and high humidity; the paper is loose and flat. Laminating machine should also pay attention to the direction of the paper strands, especially thick paper, to reduce the phenomenon of paper curling caused by rolling and stretching.
        3. When hot laminating, the pressure is too high, the temperature is too high, and the time is too long. The current working temperature and working speed of the heating laminating machine can be adjusted freely. When laminating various printed materials, it should be selected and set according to different materials. Temperature and speed.

        Product quality standard of hot laminating machine: the surface is clean, flat, no blur, good finish, no wrinkle, no foam, no paper-plastic separation, no powder foil marks. The degree of drying is appropriate, and there is no phenomenon of sticking the surface film or paper. Handle the relationship between paper, plastic film and the temperature, pressure and time when passing through the hot pressing mechanism during the laminating process. Pay attention to adjust the temperature, mechanical pressure and mechanical speed of the heat roller to avoid blistering and paper during laminating Problems such as poor plastic adhesion.