Nicoat

Problem: Blocking, picking, or offsetting occurs

 

Solutions:

Wrong Formula Coating Being Used

• Consult Nicoat.

Too Much/Little Coating Being Used

• Check manufacturer's information on coater set-up.
• Check viscosity.
• Check estimated coating coverage.

Coating Drying Too Slowly

• Check with coating and dryer manufacturers on speeding up drying process. Also review solutions for coating drying too slowly.

Coating Has Not Dried Completely

• Allow as much time as possible between printing on first and second sides or between printing and finishing.

Inks Have Not Completely Cured

• Check with ink manufacturer.
• Use spray powder as necessary.

Pile Temperature Is Too High

• Reduce pile temperature without reducing the dryness of coating in load. If possible, increase hot air temperature, movement, and evacuation.
• Improve air evacuation by exhausting immediately after coating application, both at the sheet source and after sheet is delivered in the load.
• Run smaller loads.
• Break and fan the loads.

Ink Colors, Formulation Or Colors Tend To Promote Blocking, Picking, Offsetting

• Verify that ink is formulated correctly and sequence is correct.
• Use slightly more spray powder.

Improper Fountain Solution

• Check with fountain solution manufacturer.