Gravure ink common printing failure solution - overflow

12. Overflow

Symptoms: Spots occur in the full-print portion of the ink, and ink overflows from the line portion.
Cause: The viscosity of the ink is too low.
Approach:
(1) When the viscosity is too low, add a new ink or add a modifier with a resin to increase the viscosity.
(2) Improve printing speed.
(3) Change the squeegee angle and use an acute squeegee.
(4) When the pattern is too deep, shallow patterns are used (dark tone standard is 30-50 microns).

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