How to tell fade-along-the-roll apart on corrugated preprint
On corrugated preprint, tell fade-along-the-roll apart like this: local mottling does not lighten the whole form together. Until you can tell them apart, do not adjust the press for the wrong cause. The whole form gets lighter together, and it shows more as the run goes on.
On corrugated preprint, tell fade-along-the-roll apart like this: local mottling does not lighten the whole form together. Until you can tell them apart, do not adjust the press for the wrong cause. The whole form gets lighter together, and it shows more as the run goes on.
Name it wrong and you adjust the wrong place
The whole form gets lighter together, and it shows more as the run goes on. If you treat it as another defect, you skip this step: check the ink pan, the circulation, and anilox plugging first, and do not edit the file first. On corrugated preprint the barcode and the product name decide whether it ships. They do not decide what it is called.
How to tell them apart
| What you see | Closer to | How you separate them |
|---|---|---|
| The whole form gets lighter together, and it shows more as the run goes on. | Fade along the roll | Naming it from one white spot |
| Local mottling does not lighten the whole form together. | Handle it as that other defect | Using the same adjustment |
| The spot sits on the barcode or the product name | Hold this area first | Ignoring the position just to name it |
Confirm it on the spot
- Look by eye or with a loupe: the whole form gets lighter together, and it shows more as the run goes on.
- Rule it out: local mottling does not lighten the whole form together.
- Check the ink pan, the circulation, and anilox plugging first. Do not edit the file first.
