The ability to peel off dimensionally stable or rigid packaging depends on material combinations, machine parameters, and on sealed seam and tear-off geometries. The most important value is the cracking force, but the regularity of the sealing is also significant. Peel forces can be tested with a special peel test kit.
The peel test kit is designed to test the sealed seams of packaging by peeling the lid or sealing material from dimensionally stable or rigid packaging. It has a variable gripping unit to fix the blister packaging. During the test, up to 90% of the lid is peeled off. The screw clamp has a maximum opening width of 2 mm and is suitable for gripping forces up to 300 N.
Testing of sealed seams of peelable packaging by peeling off the lid or sealing material from dimensionally stable or rigid packaging (for example, single blister packs for contact lenses). The tensile strength of the adhesive bond between the film and the plastic blisters is measured.
The test kit is equipped with holding-down devices to hold the film in position. A spring clamp is used to peel off the sealing material,
where up to 90% of the lid is peeled off.
This test kit tests the push-out force of blister contents such as tablets and other medical products. Pushed-out remains fall out of the pack via the ejection chute in the compression platen. A laser pointer illuminates the die position above the specimen before the push-out test, facilitating specimen alignment. The spherical laser pointer die can also be used for positioning specimens from other push-out tests. The stainless steel compression die is designed for a maximum force of 30 N.