Creasing matrix unglued or worn
Medium severitySymptoms
Creases losing definition during the run; cracking appearing suddenly
Probable causes
- Self-adhesive matrix badly applied or expired
- solvent cleaning softening the adhesive
The Print Guy · 2026-10-05
Other problems in this category
Die-cutting/Cracking · TPG-163
Incomplete cutting (won't release)
Blanks don't separate from the skeleton; must be forced
Die-cutting/Cracking · TPG-164
Burrs or fuzzy cutting
Rough edges, loose fibers along the cut
Die-cutting/Cracking · TPG-168
Embossing marking the front
The relief deforms or marks neighboring printed areas
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Poor stripping of internal cutouts
Windows and holes staying attached to the blanks
Die-cutting/Cracking · TPG-172
Inconsistent kiss-cut on self-adhesives
Cut goes through the liner or doesn't cut the face stock
Die-cutting/Cracking · TPG-162
Crease cracking on board
Board or print cracks when folded along the crease line; broken fibers visible