Color inconsistencies appear during press runs due to changes in viscosity

1. Changes in substrate
2. Additions to ink in press
3. Foam

Optimize color consistency by monitoring and controlling viscosity

1. Control substrate or adjust ink for stock
2. Monitor, measure and control all materials added to ink at press side
3. Add defoamer properly

Color inconsistencies appear between press runs due to changes in ink, substrate, run configurations, press conditions, suppliers, machine settings or speed

Optimize color consistency by monitoring, documenting and controlling critical variables of the printing process on each order thereby allowing reproducible print performance

Color inconsistencies appear between different press stations:

1. Differences in applied ink film thickness between print stations
2. Changes in ink, press conditions, plates, ink suppliers, operator measurement or machine settings

Optimize color consistency by:

1. Adjusting or formulation ink to correspond to various station configurations such as anilox volume, cell count and condition, metering types, pressures and conditions
2. Measure, document and understand differences, ensure that proper materials and procedures are used to minimize the effect of changes in the process

Color inconsistencies appear during press runs due to changes in pH

Optimize color consistency by monitoring and controlling ink pH (non-pH stable inks only)