Substrates GC/Bond/Coated problems: causes and fixes
11 Substrates GC/Bond/Coated problems in offset printing and finishing: symptoms, probable causes, step-by-step fixes and prevention.
Substrates GC/Bond/Coated · TPG-112
Lightweight bond: wrinkles, waves and unstable registration
Diagonal wrinkles, wandering registration, waviness after printing
Substrates GC/Bond/Coated · TPG-113
Gloss coated 2 sides: slow drying and set-off
Pile won't dry, set-off on both sides, blocking on work-and-back jobs
Substrates GC/Bond/Coated · TPG-115
Matte coated 2 sides: burnishing
Areas that 'polish' and turn shiny when rubbed: the matte defect par excellence; visible on boxes, covers and backs
Substrates GC/Bond/Coated · TPG-117
High grammages (coated 300+ g and boards): integral press setup
Feeder jams, variable registration, gripper marks, delivery curl, false doubles from the detector
Substrates GC/Bond/Coated · TPG-108
Different behavior of GC1 vs GC2 (choice and setup)
Same job prints differently when switching between GC1 and GC2; color or finishing complaints
Substrates GC/Bond/Coated · TPG-109
Mottling in solids on GC board
Cloudy, mottled solids, especially midtones and color masses on GC1/GC2
Substrates GC/Bond/Coated · TPG-110
Printing the uncoated back of GC2
Back-side text and images come out plugged, dull or with high gain
Substrates GC/Bond/Coated · TPG-111
Lightweight bond: show-through / strike-through
Print on one side visible or struck through to the other; illegible two-sided work
Substrates GC/Bond/Coated · TPG-114
Gloss coated: scratching and marking in handling and finishing
Glossy or dull scratches visible on dark solids when handling, folding or gathering
Substrates GC/Bond/Coated · TPG-116
Lightweight coated (70-90 g): waviness and wrinkles in the press
Waves across the sheet, tail-end wrinkles, delivery jams
Substrates GC/Bond/Coated · TPG-118
Grammage change mid-job or between reorders
Approved color doesn't match when restocking with another batch or grammage; different texture and shade