To prevent anilox rollers from accumulating ink in their cells, it is important to follow good maintenance practices and to use appropriate cleaning methods. Here are some tips to prevent ink buildup:
- Regular cleaning: Clean the anilox roller regularly using a proper cleaning solution that is suitable for the ink type and roller material. It is recommended to clean the roller after each printing job or at least once a day if the press is running continuously.
- Inspection: Inspect the anilox roller before and after each print job for any signs of ink buildup, and take immediate action to clean the roller if necessary. Use a microscope or a magnifying glass to check the condition of the cells.
- Avoid using harsh chemicals: Use a cleaning solution that is recommended by the anilox roller manufacturer and avoid using harsh chemicals that can damage the roller surface or cell structure.
- Adjust ink viscosity: Ensure that the ink viscosity is appropriate for the anilox roller cell volume and line screen. Ink that is too thick or too thin can cause ink buildup or insufficient ink transfer.
- Use proper doctor blade pressure: Adjust the doctor blade pressure to ensure that the blade is in contact with the anilox roller without causing excessive wear or damage to the roller. Improper doctor blade pressure can cause ink buildup in the cells.
- Use appropriate ink volume: Ensure that the ink volume is appropriate for the anilox roller and the substrate. Excessive ink can cause buildup in the cells, while insufficient ink can result in poor print quality.
By following these practices, you can help prevent ink buildup in the anilox roller cells and ensure consistent print quality.
