Military Sampling-Acceptable Quality Levels -Printed Labels

Ask or answer questions related to the flexo pressroom environment

Moderator: Frank Burgos

Military Sampling-Acceptable Quality Levels -Printed Labels

Postby Katherine » Mon Feb 18, 2019 2:18 pm

Hi everyone-
We supply high quality printed labels for consumer products. Over the past several years we have had to agree very exact specifications and tolerances for most of our highest revenue earning accounts, as they have implemented AQLs for acceptance/rejection of all their incoming raw materials.

On an incoming stock basis, more and more of our customers take a number of samples, based on the overall print run quantity - so if the print run is 500,000 labels they would take 1250 labels from multiple cartons/rolls and conduct detailed inspections for print defects prior to accepting the labels into inventory for use.

We are now having a customer ask us to implement their AQL inspection process - and be prepared to reject an order of over 500,000 labels if we find print defects totalling over 22 incidents.

Can any of you advise what types of sampling methods and final approval processes you use that I may be able to refer to as a viable option to this suggestion?

Thank you!
Katherine
 
Posts: 29
Joined: Tue Oct 14, 2014 1:32 pm

Re: Military Sampling-Acceptable Quality Levels -Printed Lab

Postby Print Vet » Wed Feb 20, 2019 5:28 pm

Hi Katherine,
Depending upon the complexity of your labels and the tolerances for what your customer would consider a rejectable defect, in your position I would be looking at 100% defect detection in an automated web inspection system. We currently have an AVT system installed on one of our slitter-rewinders that does an excellent job of inspecting and identifying print, diecut and registration defects. It's not an inexpensive solution, but it would be invaluable when working within extreme quality tolerances.
Print Vet
 
Posts: 1
Joined: Wed Feb 06, 2019 1:54 pm

Re: Military Sampling-Acceptable Quality Levels -Printed Lab

Postby Katherine » Fri Feb 22, 2019 12:09 pm

Print Vet - thank you. I fully agree :)

We have an AVT system on one press and two CEI inspection units here with AVT Work Flow that we use for as many as our critical jobs as we can, but due to shipping deadlines and overall volumes of critical labels, we can not inspect everything on these units. We do have long term plans to invest in more, but as you say, it's not an inexpensive solution.

So we may have a percentage of our work getting 100% automatic inspection; but we are still having to do a fairly large percentage of our inspection using strobe lights/visual systems. And a critical customer requesting a written sampling plan for visual inspections.
Katherine
 
Posts: 29
Joined: Tue Oct 14, 2014 1:32 pm


Return to Pressroom

Who is online

Users browsing this forum: No registered users and 2 guests