FABLE ·
Weak seam or peeling at an edge
Check whether both inner faces are heat-sealable, whether the bag is fully seated and whether residue is present. Let samples cool consistently before comparison. If only the ends are weak, check support and seating at the ends first. A weak seal can have more than one cause.
Scorched film, holes or shrinkage
Stop the trial if the material is damaged. Confirm the film type, setting and cycle against the instructions. On a rotary job, compare the affected area with the start, stop or slow sections of the pass. Do not touch hot parts; use the manufacturer’s procedure for inspection and service.
Wrinkles, channels or inconsistent output
Compare flat and folded sections and confirm the bag is held without pulling the seam. Compare the first and later specimens under the actual work pace. If a defect repeats in the same location on different bags, ask the supplier to check alignment or wear before ordering replacement equipment.
- • Photograph the defect and mark its position on the seam
- • Record material lot, settings, operation and cooling conditions
- • Separate visible defects from measured strength or leak results
FABLE models to compare
PFS Series · Hand Impulse Sealers · Specification sheet (PDF)
FDR Series · Handheld Jaw Sealers · Specification sheet (PDF)
Technical references
Machine dimensions and formats refer to FABLE specifications. These references describe testing principles, not certification of any FABLE machine or packaging process.
Related sealing guides
Heat Sealing Gusseted Bags and Thick Fold Transitions
Discuss your bag and application
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