Leak detection on pouches

On a pouch packaging line, every undetected defect is a health risk, a product recall or a customer non-compliance. Machine vision inspects 100% of pouches at the end of the line (cap, pouch, gusset) without slowing down production.

What defects does machine vision detect on a pouch?

Cap

gourde_bouchon

3 contrôles

  • Broken capdetection of fragments or missing parts
  • Skewed capcheck of the application axis and angle
  • Improperly seated capcheck of seating and screwing depth

Pouch

gourde_poche

7 contrôles

  • Delaminationseparation of the layers of the multilayer film
  • Codingreading and validation of the QR code, Data Matrix and best-before date
  • Leakdetection of moisture traces or deformation under pressure
  • Residuepresence of material on the sealing areas
  • Edge-to-edgecheck of the alignment of the side seals
  • Side misalignmentdetection of an offset between the two faces of the pouch
  • Creasesinspection of the seal areas to detect any creasing of the film

Gusset

gourde_soufflet

3 contrôles

  • Gusset leakdetection of traces or abnormal deformation
  • Punctured gussetinspection of film integrity after forming
  • Deformed gussetcheck of the geometry and regularity of the fold

Looking for
integration advice?

Discover our standard solution for inspecting spouted pouches and stand-up pouches: cells, lighting, line speed and interfacing already proven in the field.

See the industry solution

Psycle partners

Compatible with the main pouch packaging machines

Psycle vision systems integrate with lines equipped with Gualapack, Volpak or Bossard machines, as well as with any equipment exposing DIO, PROFINET, EtherNet/IP or OPC UA signals.

GualapackVolpakBossard

Integration with the customer's MES or ERP (VIF, SAP and others) is supported natively.

DIOPROFINETEtherNet/IPOPC UA

Frequently asked questions about our vision solutions.

Go to the FAQ
Pouch

Can the inspection of each pouch be traced individually?

Yes, provided the pouch carries a readable identifier (QR code, Data Matrix, best-before date). The system reads the code, links the inspection result to the identifier and sends the information to the MES for complete unit-level traceability.

Pouch

Which defects are the hardest to detect on a food pouch?

Fine creases on transparent film, partial delamination and micro-leaks with no visible trace are the most demanding cases. They require low-angle or structured lighting and AI models trained on real defects, not just simulations.

Pouch

How can you identify the causes of leaks on the gusset?

By archiving unit-level inspection images and results, the system makes it possible to correlate a drift in defects with a change in a process parameter: sealing temperature, forming pressure, film batch. This is one of the key functions of PAQ, Psycle's quality monitoring platform, available in the Cloud hosted in France or On-Premises.

Pouch

How can you detect a gusset forming problem before it causes a string of rejects?

A gradual drift in forming is visible in the inspection data well before it reaches the reject threshold. The system raises an alert as soon as the distribution of measurements leaves the nominal range, so the machine settings can be adjusted in time.

Pouch

Can vision validate the performance of a new type of gusset from the start of series production?

This is one of the most common use cases. By configuring a recipe dedicated to the new format, the system collects inspection data from the very first batches and enables fast statistical validation, without waiting for feedback from the field.

Pouch

Can a pouch gusset be inspected at industrial speeds?

Yes. Vision systems operate in real time without creating a bottleneck on the line. The acquisition frequency is matched to the machine rate during the optical study phase; at Psycle, this step comes before any hardware procurement.

Pouch

How can you confirm that a seal is compliant?

Vision inspects the continuity, width and position of the seal on 100% of units. It raises an alert as soon as an incomplete, missing or out-of-tolerance seal is detected, without waiting for a sampling inspection.

psycle solutions

A defect on your pouch line must not reach the consumer.

Machine vision inspects the cap, pouch and gusset at production speed.