When to stop for ink crawl on corrugated preprint
On corrugated preprint, stop if the ink crawl breaks a solid or the type. If it hits a barcode or the large product name, that sheet cannot go. The ink film pulls into beads and will not lay flat.
On corrugated preprint, stop if the ink crawl breaks a solid or the type. If it hits a barcode or the large product name, that sheet cannot go. The ink film pulls into beads and will not lay flat.
First see whether it hits a critical spot
The ink film pulls into beads and will not lay flat. A pinhole is a small hole that shows the stock. Crawl is the ink gathering itself into beads. On corrugated preprint, the critical spot is the barcode or the large product name. If the decoration has no hickey chart, do not invent a millimetre number on the spot.
Side by side
| What you see | Call | Do not |
|---|---|---|
| The ink film pulls into beads and will not lay flat. | Stop if the crawl breaks a solid or the type. | Add ink or add impression just because you see it |
| It lands on a barcode or the large product name | This one cannot go | Wait for a later station to find it |
| Only on the decoration, and there is no hickey chart | Keep a sample and confirm | Write your own millimetre number |
Do this on this turn
- Confirm it is ink crawl: The ink film pulls into beads and will not lay flat.
- Check surface tension and viscosity first. Do not add impression to force it flat.
- Log the material batch and the viscosity.
