Guillotine/Cutting problems: causes and fixes
6 Guillotine/Cutting problems in offset printing and finishing: symptoms, probable causes, step-by-step fixes and prevention.
Guillotine/Cutting · TPG-182
Variable measurements between cuts
The same measure yields different sizes on successive cuts
Guillotine/Cutting · TPG-183
Dragged or torn cut (dull blade)
Rough cut edge, top sheets dragged, measure pulled toward the blade
Guillotine/Cutting · TPG-184
Coated or laminated sheets welding at the cut
Pile comes out fused along the cut edge; sheets won't separate
Guillotine/Cutting · TPG-186
Off-square cutting at the guillotine itself
Cut sheets not at right angles; error accumulating over successive cuts
Guillotine/Cutting · TPG-187
Laminate or UV chipping at the cut edge
Flakes or white micro-cracks along the cut on laminated stock
Guillotine/Cutting · TPG-185
Clamp marks on the print
Rectangular imprint visible on the top sheets of every lift
Other categories
Binding (hotmelt/PUR) (8)Blankets (7)Die-cutting/Cracking (12)Feeder/Delivery (9)Folder-gluer (18)Folding (12)Fountain solution (10)Gathering/Stitching/Gluing (10)Grippers/Sheet travel (8)High rulings/Stochastic (12)Hot foil (7)Ink (material) (12)Inking calibration (6)Lamination (5)Metallized (9)Offset – Ink/Water (14)Offset – Mechanical/Paper (12)Paper/Board (10)Plates (CTP) (7)Polyboard/Corona (14)Prepress (10)Pressroom climate (5)Rollers (7)Stripping (8)Substrates GC/Bond/Coated (11)Three-knife trimmer (8)UV coating (7)Water-based coating (8)Wire/Spiral binding (7)