Blistering in heatset or strong drying
Medium severitySymptoms
Bubbles in high-coverage areas after the oven
Probable causes
- Internal paper moisture flashing to steam
- closed coating trapping the vapor
The Print Guy · 2026-10-05
Other problems in this category
Paper/Board · TPG-098
Paper curl
Curved sheets causing trouble at feeder and delivery
Paper/Board · TPG-099
Wavy edges
Waves along the pile edges; wrinkles and variable registration
Paper/Board · TPG-100
Tight edges
Stiff edges and domed center; corner wrinkles
Paper/Board · TPG-101
Paper dust and lint (linting)
White build-up on blankets and plate; constant small hickeys; frequent washes
Paper/Board · TPG-103
Caliper variation in board
Inconsistent creasing and die-cutting within one run; variable impression pressure
Paper/Board · TPG-104
Different whiteness or shade between batches
Same job looks different; client complains about color though the ink is identical