When to stop for picking on corrugated preprint

On corrugated preprint, stop if picking tears the sheet surface. Light linting follows the sample. If it hits a barcode or the large product name, that sheet cannot go. The solid edge lifts paper fiber and shows a white edge.

Picking on corrugated preprint

On corrugated preprint, stop if picking tears the sheet surface. Light linting follows the sample. If it hits a barcode or the large product name, that sheet cannot go. The solid edge lifts paper fiber and shows a white edge.

Picking on corrugated preprint

First see whether it hits a critical spot

The solid edge lifts paper fiber and shows a white edge. A void is ink that never landed. The sheet surface is still whole. On corrugated preprint, the critical spot is the barcode or the large product name. If the decoration has no hickey chart, do not invent a millimetre number on the spot.

Side by side

What you see Call Do not
The solid edge lifts paper fiber and shows a white edge. Stop if the sheet surface is torn. Light linting follows the sample. Add ink or add impression just because you see it
It lands on a barcode or the large product name This one cannot go Wait for a later station to find it
Only on the decoration, and there is no hickey chart Keep a sample and confirm Write your own millimetre number

Do this on this turn

  1. Confirm it is picking: The solid edge lifts paper fiber and shows a white edge.
  2. Drop viscosity and pressure first. Do not add ink.
  3. Log the paper batch, the viscosity, and the pressure.

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Written by

Editorial Team

Print quality & inspection specialists

We write about print quality inspection from the production floor: defects we have seen, standards we work against and equipment we have evaluated.

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