How to split a wrinkle on food flexible packaging from a lookalike
On food flexible packaging, split a wrinkle this way: a doctor-blade line is straight, and it sits in the same place on every impression in the machine direction. Until you can tell them apart, do not adjust the press for the wrong cause.
On food flexible packaging, split a wrinkle this way: a doctor-blade line is straight, and it sits in the same place on every impression in the machine direction. Until you can tell them apart, do not adjust the press for the wrong cause.
Name it wrong and you adjust the wrong place
A slanted or straight crease, and the ink breaks on the crease. Call it something else and you skip this step: check tension, alignment, and the idler rolls first. Do not add impression. The ingredient list and the heat-seal area decide whether it can go. They do not decide what you call it.
How to split them
| What you see | Closer to | How you split them |
|---|---|---|
| A slanted or straight crease, and the ink breaks on the crease. | a wrinkle | Naming it off a single white spot |
| A doctor-blade line is straight, and it sits in the same place on every impression in the machine direction. | Treat it as that other defect | Using the same adjustment |
| It sits on the ingredient list and the heat-seal area | Hold this area first | Ignoring the position just to give it a name |
Confirm it on the spot
- Look, by eye or with a loupe: A slanted or straight crease, and the ink breaks on the crease.
- Rule out: A doctor-blade line is straight, and it sits in the same place on every impression in the machine direction.
- Check tension, alignment, and the idler rolls first. Do not add impression.
