Glossary Hub

Doctor Blade

Definition

A metering blade that scrapes excess ink off an anilox roll, leaving ink only in the engraved cells.

Applications

  • Chambered doctor blade systems
  • High-coverage white
  • Fine process printing

Benefits

  • Stabilizes ink volume
  • Reduces spitting/streaks
  • Improves dot consistency

Industry Examples

  • Medical: improved barcode/UDI legibility on device packaging.
  • Industrial: consistent dense blacks for strong contrast on bulk wraps.
  • Electronics: ensures consistent conductive ink laydown for printed static-dissipative layers in specialty ESD films.

FAQ

Q: What causes blade lines?

A: Wear, debris, or incorrect blade angle/pressure.

Q: How often replace blades?

A: Based on wear and print quality; preventive schedules reduce downtime.

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