In the DIN 53359 standard, which is a European standard, a test method is defined for determining the flexible cracking properties of artificial leather and similar sheet materials. Testing according to this standard allows the evaluation of the repeated bending behavior of products according to another European standard, DIN 16922 (Flexible sheet-like structures using DIN 16922 Plastic - Technological classification).
The DIN 53359 standard sets out the requirements for the conditioning and testing of all artificial leather and similar sheet materials under constant atmospheric conditions.
Flexible cracking has been a major cause of failure in rubber products for many years, and various test methods have been developed over the years. The accuracy of these test methods is defined as:
Faux leather and similar sheet materials need to be tested for the ability of the material to withstand repeated stretching without cracking. For example, the flexural strength of rubber materials is determined by a laboratory simulation in which samples are subjected to repeated flexing. This test method is practiced under accepted flexible degree, mode and speed standards.
Subjecting a material to deformation cycles changes its hardness quality and mechanical strength. For many artificial materials, even a small change in strength or hardness is crucial. The type of deterioration to which the material is subjected depends not only on the applied force, but also on environmental conditions and the geometric properties of the material. Parameters such as oxidation, ozone attack and thermal degradation are also taken into account in these tests. A logically reliable test method should be able to numerically identify these various factors that contribute to the deterioration of the material under test. In these tests, continuous motion or stretching is applied to test how much a material can bend or flex before it cracks.
Among the numerous test, measurement, analysis and evaluation studies it provides for businesses in various sectors, our organization also provides flexible cracking testing services of artificial leather and similar sheet materials, within the scope of DIN 53359 standard, with its trained and expert staff and advanced technological equipment.
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