What a pharmaceutical label inspection must prove
A pharmaceutical label inspection has to prove three things: the required batch number and expiry are present, the barcode is not printed damaged, and regulator...
Applications
Inspection requirements for labels, flexible packaging, folding cartons, pharma and security printing.
How folding-carton inspection differs from a label web
A folding carton is one sheet at a time. A label web is continuous. A carton is judged on the gripper edge, the cut line, and front and back. A web is judged on...
Which defects matter most on a flexible-packaging web
On flexible packaging the defects that matter most are dirt and pinholes in the heat-seal zone, the barcode, and missing or wrong text that would mislead. A sma...
How to inspect a shrink sleeve without stretching the measurement
Measure the print and the barcode of a shrink sleeve while it is still flat, before it shrinks. Do not measure the size after it is on the bottle. Shrink pulls...
What to change when the substrate is metallised film
After the substrate changes to metallised film, light straight on easily turns the aluminium face into a white sheet. Fine type and pinholes both disappear. Cha...
How to inspect cold foil and hot foil in the same pass
Cold foil and hot foil can be seen in the same pass, but in two regions. Cold foil is judged on whether the pattern transferred into place. Hot foil is also jud...
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...
How to check a leaflet that is not on a web
A leaflet that is not on a web is checked sheet by sheet or stack by stack. A walk around the press is not that check. A sheet has no metres. The record uses a...
Which register matters on a label with a clear window
On a label with a clear window, the register that matters is the artwork against the window, not only the crosshair between colours. The crosshair can be right...
What to check on a wrap-around label before the bottle
On a wrap-around label, check the artwork, the barcode, and the leading and trailing seam on the flat unwind, before the bottle. If the artwork does not meet at...
What a corrugated preprint still has to catch
A corrugated preprint still has to catch the barcode, a wrong large product name, and a whole missing print block. Flute texture is not dirt. The board is wide,...
How to inspect a short-run digital label that changes every roll
A short-run digital label that changes every roll cannot be covered by one fixed template. Variable numbers and barcodes are checked against a rule. Only the ar...