Testing artificial leather and similar sheet materials; determination of the total elongation (statical elongation) and irreversible elongation
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Our testing laboratory performs testing according to German standard DIN 53360 using an accredited procedure. This standard describes a test method for determining the total elongation (static elongation) as well as the permanent elongation of artificial leather and similar coated or polymer-based sheet materials. The aim of the test is to evaluate the elongation and recovery behavior of flexible material systems, such as coated textiles or synthetic leather materials. These parameters are particularly important for applications in which materials are subjected to mechanical stress, tensile loads, or shape adaptation during use.
During the test, standardized specimens are taken from the sheet material to be examined and subjected to a defined static tensile load under controlled conditions. While the load is applied, the total elongation of the material is measured. After unloading the specimen, the permanent elongation or residual deformation remaining in the material after a defined relaxation period is determined. This allows both the elastic and the plastic components of the material’s deformation behavior to be quantified.