When to stop for edge wave on a cosmetics carton
Stop when the wave pushes type or a barcode out of tolerance. If it hits the brand mark or a brand-color solid, that piece cannot go. If there is no chart, do not invent millimeters.
Edge wave on a cosmetics carton means stop when the wave pushes type or a barcode out of tolerance. If it hits the brand mark or a brand-color solid, that piece cannot go. The sheet edge waves, and local register and wrinkles move with it.
First see whether a critical spot is hit
The sheet edge waves, and local register and wrinkles move with it. A shift across the whole sheet is a side-lay problem, not the sheet edge. On a cosmetics carton the critical spots are the brand mark and a brand-color solid. If a decorative area has no dirt-spot chart, do not write a millimeter number on the spot.
What to compare
| What you see | Call | Do not |
|---|---|---|
| The sheet edge waves, and local register and wrinkles move with it | Stop when the wave pushes type or a barcode out of tolerance | Add ink or pressure just because you see it |
| Lands on the brand mark or a brand-color solid | This piece cannot go | Wait for the next step to find it |
| Only on decoration and there is no chart | Keep a sample and have it checked | Write your own millimeters |
Do this first this round
- See if it is edge wave: the sheet edge waves, and local register and wrinkles move with it.
- Air the paper or check humidity first. Do not only add pressure.
- Write down the paper lot and how long the pile sat.
