Seam
Inspect the meeting point, gap, overlap or edge alignment where visible.
Multiple label faces and cylindrical coverage
Front, back and wraparound label inspection
Confirm that every required label is present, correctly paired, positioned and aligned across flat, oval, round and shaped containers.
✓ Paired-label verification✓ Gap and overlap checks✓ Multi-camera coverage
How are front, back and wraparound labels inspected?
The camera arrangement follows the label surfaces and product orientation. Oriented flat or oval packs may use opposed views for front-and-back labels. Round containers with wraparound labels need multi-view, controlled-rotation or another full-surface method when the seam, overlap, artwork or codes may appear anywhere around the circumference.
| Label arrangement | Checks commonly required | Coverage consideration |
|---|---|---|
| Front and back | Both present, correct pair, height, skew, gap and artwork identity | Product normally needs a controlled orientation or opposed views |
| Wraparound | Presence, seam, overlap, edge alignment, artwork and variable print | A single view cannot see the hidden circumference |
| Neck plus body | Neck label presence and orientation matched to body label | Different heights or angles may require separate views |
| Promotional or multi-layer | Additional label present and applied in the permitted region | Feature may move or sit over reflective artwork |
Paired-label assurance
Check identity and relative placement together
A front label and a back label can each be present but still be the wrong pair or positioned incorrectly relative to one another.
- Front and back labels present on the same pack
- Correct artwork variants paired to the product recipe
- Vertical height, rotation and skew tolerances
- Distance or angular gap between two labels
- Barcode, date or batch print on either face
- Reject tracking after multiple camera decisions
Wraparound coverage
Define which part of the circumference matters
“360-degree inspection” can mean label presence around the pack, complete artwork inspection, a seam check or full code coverage. Each scope drives a different resolution and camera layout.
Artwork
Verify the approved graphics and critical regions around the label.
Codes
Ensure the required code surface is seen at adequate pixels and contrast.
Integrity
Find defined folds, tears, bubbles or lifted areas within proven limits.
Practical answers
Front, back and wraparound questions
Can one camera inspect front and back labels?
Only if both surfaces can be presented to that camera. Most front-and-back applications use separate views or a controlled product rotation.
Can the system tell if the front and back labels are mismatched?
Yes, when each label has a stable visible artwork, text or code feature that can be compared with the active product recipe.
Can the wraparound seam and overlap be measured?
Often yes, when the seam region is visible at sufficient resolution and the product presentation allows consistent coverage.
Can neck labels be checked with body labels?
Yes. Separate or angled views may be needed to inspect the neck label and confirm it is paired correctly with the body label.
Application review
Request a project reviewSend the complete label layout and container range
Include every label face, pack orientation, critical artwork or code, position tolerance, speed and realistic failure sample.