How to tell a streak from lookalikes on corrugated preprint
On corrugated preprint, split a streak from lookalikes: a lone spot does not pull into a line across the web. Until you can tell them apart, do not adjust the press for the wrong cause. A continuous light or dark line in one direction.
On corrugated preprint, split a streak from lookalikes: a lone spot does not pull into a line across the web. Until you can tell them apart, do not adjust the press for the wrong cause. A continuous light or dark line in one direction.
Name it wrong and you adjust the wrong place
A continuous light or dark line in one direction. If you call it something else, you skip this step: decide whether the direction is web travel or across the web, then check the blade or the roll. The barcode and the product name decide release. They do not decide what it is called.
How to tell them apart
| What you see | Closer to | How to separate |
|---|---|---|
| A continuous light or dark line in one direction. | Streak | Do not name it from one white spot |
| A lone spot does not pull into a line across the web. | Handle it as that other defect | Do not use the same adjustment |
| It sits on the barcode and the product name | Protect this area first | Do not ignore the location just to name it |
Confirm on the spot
- Look, or use a loupe: a continuous light or dark line in one direction.
- Rule it out: a lone spot does not pull into a line across the web.
- Judge web direction or cross direction first, then check the blade or the roll.
