Donut Dots

Donut Dots

Cell geomentry is inappropriate

Adjust cell geomet

Cell volume is excessive for high hold out substrate

Reduce cell volume on high hold out substrate

Film treatment is marginal

Check film for proper treatment

Foaming is occuring in the ink

Minimize ink freefall and avoid over agitation

Ink is drying too fast

Add small amount of slower drying solvents

Ink may be too tacky

Make the ink harder using an alternate resin

Ink viscosity is too high

Reduce ink viscosity and adjust for better flow out

Porosity in substrate is too high

Use lower porosity substrate or try adding wetting agents to the ink

Solvent balance is poor

Consult your DIC representative

Solvent (blend) is too polar, picking up moisture

Add easter and Aromatic Aliphatic Hydrocarbon

For more information, please contact us.

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