Testing of Cardboard and its Products

Burst Test

The Zwick Roell burst tester is an accessory of the testing machine for performance of the burst test.

2-Point Bending Test

The 2-point bending test unit from Zwick Roell covers two applications: calculation of bending stiffness and the determination of the folding behavior at an angle of 90º.

Creasing Strength

This bending rig is available for combined bending and creasing tests.

3-Point Bending Test

Possible applications for this method are tests on cardboard, paper based compounds or cores.

4-Point Bending Test

With the 4-point bending method dependable stiffness values are measured in the machine and cross direction.

Penetration Test

With the linear motion penetration test (LPET) the penetration pyramid is pressed through the specimen in an even movement.

undefined more

Internal Bond Test (Z-Direction Tensile Test)

For multi-layered materials (duplex paper, coated paper), the internal bond strength of the layers to one another is an important characteristic. It determines the further processability.

Coefficient of Friction

For the determination of the coefficient of friction, an important factor is the material of the two surfaces to be measured, „paper against paper", or „paper against other materials".

Laboratory Creasing

A testing machine can be used for the determination of creasing parameters according to DIN 55437.

Box Crush and Stacking Crush Tests

These tests are used to determine the strength and the stacking capabilities of corrugated board boxes.

undefined More