The effect of laminating directly affects the quality of the printed matter and directly affects the interests of customers.

  The pre-coating film laminating machine melts the glue by heating, and then adheres the film to the printed matter by pressing. The single-sided film curling of the small pre-coating hot laminating machine has always been a headache, so hot What is the reason for the single-sided film curling of the laminating machine?

  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. The pressure during lamination is high, the temperature is too high, and the time is too long. The current working temperature and working speed of the hot laminating machine can be adjusted freely. For the lamination of various printed products, the temperature should be selected and set according to different materials. And speed.

  The quality standard of film-coated products: the surface is clean, flat, not blurry, good finish, no wrinkles, 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.

   Aiming at the problem that the single-sided lamination of the ordinary small thermal laminating machine is easy to curl and affects the effect of the subsequent process, the newly designed anti-curling laminating machine of the Century Gold Figure after-printing equipment can effectively help customers improve the quality of the lamination and prevent gravity stretching. Roll design, anti-curling function, different gears can be selected according to different thicknesses of media, to ensure the smoothness of the product after lamination, greatly improve the grade of laminating products; the overall adjustment of the pressure and height of the rubber roller on one side; all kinds of paper It can guarantee perfect operation; the upper and lower film rolls and the tension of the left and right sides of the film rolls can be adjusted separately to adapt to different media, different film materials, and different equipment prints, which can achieve the best film effect.