1. The product to be constructed must be straight. Handle uneven paper with "ruffled edge" and "tight edge" phenomena. Paper with "lotus edge" can be baked, and paper with "tight edge" can be hung to dry.
2. Be sure to wait for the blot to dry before coating, otherwise it will cause blistering or hair pulling.
3. Spray as little powder as possible during printing, otherwise it will cause emptying and bubbling at the powder pile. Before spraying the film, the powder should be disposed of. If the number of prints is large, the powder can be hung to remove the powder. If the number of prints is small, the powder can be wiped manually.
4. When laminating machine, pay attention to the direction of paper strands, especially thick paper, to reduce the phenomenon of curling caused by rolling and stretching.

        Temperature is the primary factor of pre-coating film, because the adhesive on the pre-coating film is hot-melt adhesive, the temperature determines the melting state of the hot-melt adhesive, and determines the hot-melt adhesive molecules to BOPP film, printed ink layer, paper, etc. Penetration and diffusion capacity. Although the increase of the coating temperature helps to increase the bonding strength, too high temperature will cause the film to shrink, the product surface will shine and blisters, and the product will wrinkle. According to practical experience, the temperature of the film should be controlled between 70 ~ 100 ℃.
        The surface of the paper of the laminating machine is not flat. Only under the appropriate pressure, the hot-melt adhesive in the molten state can completely cover the surface of the printed product, the laminating product is bright, and the bonding effect from the laminating machine is good. The pressure is small, and the bonding is not strong; the pressure is higher, which helps to improve the bonding force between the film and the paper product. However, if the pressure is too high, it is easy to wrinkle the product, and it is easy to damage and deform the surface of the rubber roller and reduce the service life of the rubber roller. As the pressure increases, the contact pressure between the rubber roller and the heating roller increases, which increases the load on the shaft head and bearing of the two rollers of the laminating machine, which increases the wear and aggravates the load on the transmission system. Too much pressure will affect the service life of the whole machine.

        Set one within 50 meters according to the continuation length of the automatic laminating machine, and it should be satisfied that the transition resistance on the laminating machine in the furthest point from the ground electrode does not exceed the requirement of 10 ohms. The ground resistance must not exceed 20 ohms. The ground electrode is buried at the highest point of the ground, and is not shallower than 50 cm above and below the ground. When filling, the new fill should be rammed.
        The vertical column of the automatic laminating machine is required to be vertical. The vertical error of each corner column shall not exceed 0.5%, and the neutral column shall not exceed 1%. The distance between the columns of the external laminating machine constructed in eight layers shall not exceed 2 meters. The vertical spacing is not more than 1.8 meters, and it is necessary to use the members to join together, tighten the bolts, and the longitudinal degree of the load-bearing bar must be supported on the cross bar.

        1. Professional multi-functional laminating machine, which can do a variety of tasks such as thermoplastic, cold lamination, low temperature cold lamination, hot lamination, etc., suitable for graphic mounting and binding and binding cover mounting;
        2.Adjust the pressure and height of the rubber roller on one side; internally heated double roller heating, intelligent constant temperature;
        3. Light touch operation button, free temperature setting, 9 speed adjustment, LED digital display;
        4. Heighten the upper and lower roll film holders to install large rolls of hot film to avoid the inconvenience caused by frequent roll film changes. The upper and lower roll films and the tension of the left and right sides of the roll film can be adjusted separately to ensure The coating effect of various materials;

        After the printed matter is covered with film, it can improve the grade of printed matter and automatic laminating machine. Generally, there are two types of film: one is dumb film and the other is bright film.
        Laminating is the process of covering the surface of printed products with polypropylene and other plastic films, and using adhesives to heat and pressure to bond them together. The coating process is divided into two types: pre-coated film and coating film. The pre-coated film is to pre-coat the adhesive on the plastic film, dry and wind it. Afterwards, in the case of an adhesive, the film can be coated by hot pressing. That is to say, the coating film is to use the adhesive at the same time when coating the film.
        The method of laminating is divided into "cold mounting" and "hot mounting". "Cold mounting" is to use the pressure of glue and cold mounting machine to bond the photo to the film and the backboard; while "hot mounting" is to mount the photo by the high temperature and high pressure of the hot mounting machine. In contrast, the cost of cold mounting is lower, but the effect of hot mounting is better, and the photo storage time is longer after mounting. The printed products covered with film are more beautiful, and the grade is also very high. Almost every printed product needs to be covered. In the printing industry, printing is almost separate from laminating factories, so it is more professional.
        One: There is a feeling of “haze” on a large area of ​​the picture
        1. Insufficient film pressure-adjust the pressure of the cold laminator;
        2. The two ends of the cold laminating machine are uneven-adjust the adjusting screws of the spacing of the cold laminating machine to achieve equal distance;
        3. Over-photographic paper --- The surface of photo paper is uneven, generally around 25 degrees, it will automatically disappear after being placed for 2-3 hours, the higher the temperature, the faster the disappearance;
        4. After the PP adhesive-A. If you touch the PP adhesive screen without a "rough" feeling, then proceed according to the above method; B. If you have a "rough" feeling, you need to change the PP adhesive;
        5. The viscosity of the glue is not good at low temperature --- A. Increase the temperature of the use environment. B. Replace the cold laminating film;