Work Piling

Ink becomes waterlogged.  This causes the pigment to separate due to insufficient viscosity and tack

Run less fountain solution on press.  Have ink checked for emulsification characteristics

Rollers are wrong durometer; rollers are improperly set; blanket is underpacked or badly conditioned

Use proper rollers and blankets; check roller settings and blanket packing, or clean and condition

Ink has improper dispersion or grind

Check ink dispersion.  Check ink viscosity.  Consult your Sun Chemical representative

Ink is unstable

Consult your Sun Chemical representative

Fountain solution pH and/or conductivity is incorrect

Check and adjust to supplier recommendations

Ink roller train surface temperatures are incorrect

Adjust roller surface temperatures to recommended values.  Check roller settings

Ink lacks sufficient lubrication or is unstable

Consult your Sun Chemical representative

Dry ink that has not fully transferred from the blanket to the paper can begin to build up, producing a relief image.  This is caused by inadequate blanket cylinder pressure and/or plate or blanket packing

Check blanket cylinder pressure and/or plate and blanket packing