The light color of the printing can be remedied by the following methods:
Cleaning the printing plate: Dirty surface of the printing plate will affect the normal transfer of ink, resulting in light printing color. Cleaning the plate can effectively solve this problem. First, wipe the plate clean, then rinse it with water, and wait for the plate to dry before printing.
Inspection Scraper : The scraper is responsible for scraping off the ink on the surface of the plate and passing it to the print. If the squeegee is aged or deformed, the ink will not be evenly transferred, resulting in too light printing color. At this time, the squeegee should be replaced to ensure the printing quality.
Check the ink disc: Too little ink in the ink disc or too many impurities attached to the ink disc will affect the printing effect. It is advisable to clean the ink tray regularly and keep the ink well stocked.
Adjust pressure and speed: When using a pad printing machine, pressure and speed are important factors in adjusting the color. If the pressure and speed are not balanced, it will cause the ink to be uneven, which in turn will affect the depth of the printed color. It is recommended to adjust the pressure and speed according to the actual situation to ensure the printing quality.
Ink replacement : The quality of the ink also affects the depth of the printed color. Using high-quality ink, and changing it regularly, can guarantee the quality of printing.
Refill the ink with new ink and adjust the ink viscosity : If there is too much solvent in the ink or the ink settles, it will cause the color to be too light. This can be solved by replenishing new ink and adjusting the ink viscosity.
Increase the printing pressure: Increasing the printing pressure can make the ink better transferred to the paper, thus deepening the printing color