Pack opening
Variable-angle peel (opening force)
ZwickRoell · sample grip made to MTC specifications, with tilting table
We measure how easily the pack opens: the force with which the lid comes off the tray. The tray sits on a tilting table with a sliding carriage that follows the pack, so the peel point stays on the pulling axis and the chosen angle does not change during the test. The sample grip was made by ZwickRoell to MTC specifications; the rest of the machine is standard. You choose the angle that reproduces how the consumer opens the pack.
ISO 29862
Foto 05 - ZwickRoell peel - BarrierLab
- Date
- 26 October 2026 (date received)
- Location
- BarrierLab laboratory, TRC Park, Jucu de Sus
- GPS coordinates
- 46.877579, 23.785723
- Instrument
- ZwickRoell, variable-angle peel fixture
- Camera
- Unknown
- Editing
- Cropped to 4:3 and downsized
- AI editing
- Yes, edited with the help of AI
- Original file
- PHOTO-2026-10-26-14-30-38 (4).jpg
Foto 05 - ZwickRoell peel - BarrierLab
What we measure
- —Tray opening force (N): peak at release and average force over the peel
- —Seal uniformity along the whole peel
- —Adjustable peel angle, 0–180°, constant during the test
- —Comparison of easy-peel lids
Where it is used
Trays with heat-sealed lids, topseal and easy-peel packs; checking ease of opening before launch.
Test data
| Sample needed | Tray film and lidding film, 30 cm wide; the quantity is agreed with the laboratory |
| Conditioning | Min. 24 h in the laboratory, at controlled temperature |
| Turnaround | 5 working days |
| Deliverable | Test report (RO / EN) |
Indicative values — confirmed with the quotation.
Request this test