Excess ink retention to obtain desired strength
Increase the strength of the ink
The ink has high coating weight
Try reducing the film weight, it will reduce the coating weight
High Temperature & humidity
Maintain pressroom temp 20-30 deg C & Relative Humidity 50-60% to keep in control
Low gramage substrate
Reduce stack height to control gramage substrate
Spray powder used
Do not use spray powder for better results
Undercured
Clean UV lamp, Check output of UV lamp, Distance between application & curing must be reduced, Reduce speed
For more information, please contact us.