1. It is caused by uneven concentration of corrosive agent or uneven treatment time. If the corrosive agent concentration is too high or the treatment time is too long, it will cause the lines to become thinner, while if the concentration is too low or the treatment time is too short, the lines will become thicker. Therefore, when making pad printing steel plates, it is necessary to control the concentration and processing time of corrosive agents to ensure that the thickness of the lines is uniform.
2. There is a small amount of oily dirt that has not been cleaned, and it is recommended to clean it before making
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