After the printing plate is printed for a long time, the roughened surface of the blank part may be gradually smoothed, resulting in:
(1) The dampness performance of the printing plate is reduced, and the supply of fountain solution must be increased to maintain the balance of water and ink.
(2) The moisture stored on the surface of the printing plate is reduced, and the colloid adsorbed on the surface of the printing plate is reduced. If the printing machine is temporarily stopped halfway during printing, it is easy to get dirty without wiping the glue in time, which brings great inconvenience to production. If the roughened surface wears more seriously. You must replace the printing plate.
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