What a security-print customer expects from 100 percent inspection

The 100 percent inspection a security-print customer wants is usually that every piece is present, microtext or the security element is not missing, and numbers are not repeated or skipped. Catching large dirt spots is not that inspection. The number rule follows this job’s instruction.

A printed sheet with microtext

The 100 percent inspection a security-print customer wants is usually this: every piece is present, microtext or the security element is not missing, and numbers are not repeated or skipped. Catching large dirt spots is not the 100 percent inspection they asked for. The number rule follows the instruction for this job.

A printed sheet with microtext

Why it is judged this way

When microtext is smaller than the camera can resolve, write in the contract that it cannot be seen. Do not pretend it was inspected. Where it can be seen, there must be a sample with the element intentionally missing, to prove the alarm. Numbers are checked against the sequence rule. Looking at whether the characters resemble the master is not enough.

What to compare

What you see Call it Do not
A security element is missing Alarm Call dirt-catching a 100 percent inspection
A number is repeated or skipped Alarm by the rule Only compare the artwork
Resolution cannot see the microtext Write that in the capability Write “100 percent inspected” on the acceptance

Check at a job change or a new roll

  1. Confirm this job’s security elements are inside the field of view and the resolution.
  2. Make one sample with the element missing and confirm it alarms.
  3. Write the number rule and the starting number into the template record.

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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