When dry-back shows on corrugated preprint, what do you move first
When dry-back shows on corrugated preprint, measure again after it is dry. Do not use the wet reading as the final colour. Change only this one thing. Look again in the same place after you change it. The colour just printed and the colour after drying are not the same. After drying it is usually darker or duller.
When dry-back shows on corrugated preprint, measure again after it is dry. Do not use the wet reading as the final colour. Change only this one thing. Look again in the same place after you change it. The colour just printed and the colour after drying are not the same. After drying it is usually darker or duller.
Move one thing first
Stop if the dry reading is outside the tolerance. A passing wet reading does not count. If it has already hit a barcode or the large product name, stop first, then adjust. Do not try it while the press keeps running. A colour change during the run changed on the press. It did not wait until it was dry.
Order
| Do this first | Do not do this first | Why |
|---|---|---|
| Measure again after it is dry. Do not use the wet reading as the final colour. | Change ink, pressure, and speed at the same time | Change three things at once and you will not know which one worked |
| It has already landed on a barcode or the large product name | Try it while the job keeps running | Scrap keeps going |
| Log whether the reading was wet or dry, and the time between them. | Only say you already adjusted it | The next shift cannot pick it up |
Leave this behind
- Measure again after it is dry. Do not use the wet reading as the final colour.
- In the same place, confirm whether the dry-back has eased.
- Log whether the reading was wet or dry, and the time between them.
