Surface is not ink or lacquer receptive.
Treat substrate if treatable, but do not over-treat; change to recommended ink type; and/or coating primer if possible.
______________________________________________________________________
Ink is not drying properly.
Add faster drying solvents and/or increase air and heat delivery. Thin inks if possible.
______________________________________________________________________
Ink is brittle due to insufficient amount of plasticizer.
Add small amount of plasticizer.
______________________________________________________________________
Ink choice is improper for substrate.
Reformulate ink for specific substrate.
______________________________________________________________________
Ink viscosity is too high.
Reduce ink viscosity to proper level.
______________________________________________________________________
Web temperature is too low for substrate and ink.
Increase web temperature to adequate level for substrate and ink.
______________________________________________________________________
Re-worked ink has an out-of-balance pigment to vehicle ratio.
Remake ink or refresh ink with fresh pigment and resin.
*The solutions provided from the troubleshooting guide are general in nature, please contact your sales or technical representative to discuss specific issues.
Sun Chemical offers a broad portfolio of inks, coatings, color software and brand color management for flexographic printing.
Learn About Sun Chemical's Solutions for Flexographic Printing