The handle joint
Where a ribbon, a rope or a cut-out meets the bag
- Test
- A calibrated push-pull gauge, bag body clamped, the gauge on the handle loop or the die-cut perimeter, pulled smoothly vertical to the proof load.
- Target
- 2× the expected maximum load, or a 10 kgf static hold for 60 seconds
- Failure
- A torn corner on a cut-out; a bonded ribbon separating with under 80% of the fibre torn, which points at the adhesive and not at the ribbon; or a patch pulling out whole.
- Recorded
- Peak force and failure mode both, because where it fails decides whether the joint is re-engineered or the batch is reworked.





























