How to inspect a booklet label without opening every one

A booklet label does not have to be opened one by one, but the rule must be written: the cover and the thickness are inspected on every label, and the inside pages follow a stated sample.

One thick label

A booklet label does not have to be opened one by one, but the rule must be written: the cover and the thickness are inspected on every label, and the inside pages follow a stated sample. A wrong cover or a wrong page count comes back more often than a small dirt spot inside. Without a written sample, do not say the inside pages were inspected.

One thick label

Why it is judged this way

In the camera a thick label is an outline. One page more or one page less changes the outline and the thickness, and that is easier to do on the line than opening each one. If the customer requires every inside page to be inspected, that inspection is done before binding. After the booklet is made, a full inspection of the inside cannot be done.

What to compare

What you see What to call it What not to do
Thickness outside this job's range Stop and check the page count Call it normal thickness
Cover artwork is wrong A full inspection has to catch it Sample only one
No sample record for the inside pages Do not write that the inside was inspected Let a good cover stand in for it

At job change or when a roll is opened

  1. On the line, use thickness or outline to see the page count.
  2. Inspect the cover against the template on every label.
  3. Write the inside-page sample rate on the job ticket, and keep the booklet that was pulled.

Related reading

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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