The Cleaning Problem Of Flat Screen Printing Machine

  •   When it comes to Stenter, I believe everyone knows it better. Its printing products can be seen everywhere in our lives, so the cleaning of the pad printer is very important. If it is not clean, it will affect the print quality and shorten the service life. The editor below will explain to you some matters needing attention in the cleaning process of the pad printer.
    1. Template pollution
    The main cause of template contamination is improper ink control, resulting in dry ink remaining in the mesh.
    Cleaning method: When using solvent-based ink or water-based ink, the reason is that the ink is too thin or too thick. The above changes should not occur when the toner is adjusted. When using ultraviolet curing ink, try to avoid the screen from being exposed to ultraviolet rays. Lights and sunlight.
    2. Graphic printing position
    When there is dirt or dry ink on the graphic printing part, it must be decontaminated.
    Cleaning method: After stopping the printing machine, lift the net frame and rub the bottom of the template with an emery cloth soaked in solvent, being careful not to apply excessive force. Vigorous friction will destroy the graphical interface of the latex layer, or even wipe off the latex layer, which will damage the machine.
    3. Pollutants on ink or printed materials
    In order to make the mesh work normally, you should also pay attention to cleaning up the dirt on the ink or substrate. Due to the pollutants adsorbed in the air by static electricity and poor storage conditions, it will pollute the surface of the substrate.
    Cleaning method: solve by improving storage conditions and process control. In addition, the use of electrostatic precipitators and printing material decontamination devices can also prevent the transfer of dust from the surface of the pad printer to the mesh.
    4. Ink control and printing speed control
    Ink control problems and improper printing speed control can cause uneven ink supply and cause the mesh under the ink to dry quickly. The last cause of ink drying is improper setting or wear of the squeegee. When printing fine images, the ink plate at the edge of the squeegee needs to be deformed or worn during normal use, and the clarity of the surrounding image will be reduced accordingly. This situation indicates that the ink may not pass the grid correctly. If this problem cannot be solved in time, the ink will dry out and stick to the mesh.
    Cleaning method: Rotate the squeegee regularly to extend the service life of the edge of the squeegee, or replace the squeegee with a new one before the printing quality of the pad printer has not deteriorated. In this way, the quality of the Flat Screen Printing Machine during printing can be well improved. Good question.
    When the pad printing machine is cleaned, the above matters and methods must be paid attention to, so as to ensure the better use of the machine and the smooth completion of production.