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      1. NEW&EVENT
        NEWS
        How to solve the printing defect of double sided printing machine? Daily maintenance method
        2021-5-5 10:27:36

        Our company is a company integrating R & D, design and production of double-sided offset printing machine. We have rich experience. Today, we will introduce the daily cleaning methods of double-sided offset printing machine in detail.

        ? 1. Clean the surface of double-sided offset printer regularly every day, including cleaning and wiping oil and ink in the body meter, removing waste paper and sundries in the machine, and keeping the equipment excellent performance and corrosion free.

        ? 2. Wipe the surface oil and paper powder of the machine as often as possible to reduce friction of each machine and avoid some blockage caused by the exposure of the machine parts in the air.

        ? 3. As an important part of double-sided offset press, please wipe the drum regularly to keep the surface of the roller clean, especially the press drum.

        ? 4. The surface cleaning and testing of the air pump and motor of the machine shall be carried out, and the heat dissipation shall be well treated. Avoid the machine from working and working normally due to poor heat dissipation.

        In addition, in the ordinary cleaning work, some parts and components shall be inspected by the way to see if there is any problem of oil holes, oil circuit, oil filling equipment and parts, and whether the screws are loose, and the double-sided offset printing machine shall be refueled and maintained in time.

        How to solve the printing defect of double sided printing machine? Daily maintenance method

        The common printing defects of two color offset printing machine are: plate fouling, reverse printing, water pattern, block plate, anti sticking, etc. What should we do if these problems arise?


        ?   1. Version pollution:

        Phenomenon: the non graphic part of the plate drum leaves ink that the scraper is not cleaned by the scraper, and it is transferred to the film during printing, and becomes a stain.

        ? solutions

        ?? 1) reduce printing speed;

        ?? 2) adjust the angle of the blade to make it steeper;

               3) reduce the viscosity of ink;

               4) Adjust the solvent to improve the drying speed of ink;

        ?? 5) check whether the scraper is installed straight and the pressure is even.

        ? 2. Reverse printing

        Phenomenon: the ink of the previous color is printed back to the later one.

        ? solutions

        ? 1) reduce the pressure of the press drum;

        ? 2) improve the adhesion of the previous one color ink, and improve the drying speed of the ink;

        ? 3) decrease the viscosity of the first color

        ? 3. Water grain

             Phenomenon: ink is uneven printing transfer pattern.



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