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PPWR/ Recycling

Tear resistance (also folded edges), (temperature range - 40 up to + 120 °C)

Methods available: trapezoid, trouser, on request: FhG leaflet 6 part 9 (folded edges, trapezoide - extra charge!), Graves

In short — AI-generated

This test determines the force required to propagate a tear in flexible packaging materials. A specimen is prepared with a defined incision and pulled at a constant speed until it tears further, with testing possible across a temperature range from -40 °C to +120 °C.

The resulting tear resistance value indicates how robust a film is against further tearing once it has been damaged. This information helps developers select materials that prevent packaging failure during transport or handling, including the evaluation of critical areas like folded edges.

Text is AI-generated; based on test method data curated and verified by Innoform.

Test Method Group: Mechanical properties

Norms:

Required Sample Amount: Sample over total width of material, minimum length: 0,5 m

Standard Tests

tear strength- trapezoid

Specific Norm: DIN EN 17679

Quasistastic test method by using a tensile tester, suitable for characterisation of all rigid and soft plastic films up to 1 mm thickness. Not suitable for brittle materials. Can also be carried out in the thermal chamber.

tear strength -Graves

Specific Norm: DIN ISO 34-1

Quasistastic test method by using a tensile tester,particularly suitable for characterisation of elastomeric- films or - sheet up to 1 mm thickness. Not suitable for brittle materials. Can also be carried out in the thermal chamber.

tear strength DIN EN ISO 6383-1 (trouser test, sample width 50 mm)

Specific Norm: DIN EN ISO 6383-1

Quasistastic test method by using a tensile tester, suitable for characterisation of all rigid and soft plastic films up to 1 mm thickness. Not suitable for brittle materials. Can also be carried out in the thermal chamber.

tear strength of folded edges, trapezoid- method

Specific Norm: IVLV Merkblatt No. 6 Teil 9

Quasistatic test method by using a tensile tester, particularly suitable for characterisation of the resistance of folded edges of flexible films. Not suitable for brittle materials. Can also be carried out in the thermal chamber.

tear strength ASTM (trouser test, sample width 25 mm)

Specific Norm: ASTM D 1938

Quasistastic test method by using a tensile tester, suitable for characterisation of all rigid and soft plastic films up to 1 mm thickness. Not suitable for brittle materials. Can also be carried out in the thermal chamber.
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