Testing of Paper for Corrugated Board Production

Burst Test

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

Tear Test

By using a tear test, this gives paper processors an estimated value of the future behavior of the end product.

Crush tests

Corrugating Medium Test, Flat Crush Test (FCT), Edge Crush Test (ECT) and Ring Crush Test (RCT) are the main crush tests.

Strip Crush Test

The paper’s characteristic „compressive strength" can be determined by the strip crush test with high accuracy.

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.

Water absorbtion to Cobb

Water absorbtion of raw paper is determined with the Cobb Test.

Tensile Tests

Tensile tests inform about a number of characteristics: stiffness, modulus, tensile strength, tearing length and energy absorbtion.