Evaluation of the physical and mechanical properties of nonwoven interlinings, such as tensile strength, tear strength, abrasion resistance and wrinkle resistance, usually requires a series of professional test methods and standards. The following is an overview of the evaluation methods for
Non-woven Lining Manufacturers these properties:
Tensile Strength
Tensile strength is a measure of the ability of nonwoven interlinings to resist breaking when subjected to tensile forces. When evaluating, the tensile test method is often used, that is, the sample is cut into a specified size (such as 100mm×200mm), and the sample is stretched at a constant speed (such as 10mm/min to 50mm/min) using a tensile tester, and the maximum force value at break is recorded. This force value reflects the tensile strength of the nonwoven interlining. Relevant standards such as ISO 13934-1:1999(E) provide detailed test guidance.
Tear Strength
Tear strength evaluates the resistance of nonwoven interlinings to tearing forces. The tear test is to make the sample into a narrow strip, cut it in the center, and then tear it with force, and record the maximum load before tearing. This load is the tear strength, which reflects the tear strength of the nonwoven interlining. ISO 13937-1:2000(E) is one of the standards for tear tests.
Abrasion resistance
The abrasion resistance test evaluates the durability of nonwoven interlinings when subjected to friction. Common test methods include the Martindale abrasion test, which uses a specific instrument to rub the sample a certain number of times, and observes and compares the changes in the sample before and after friction, such as fuzzing and pilling. When evaluating abrasion resistance, you can refer to standards such as WSP20.5 and ISO 12945-2.
Wrinkle resistance
Wrinkle resistance evaluates the ability of nonwoven interlinings to restore flatness after being subjected to external forces. There are various methods for testing wrinkle resistance, including subjective evaluation methods and objective evaluation methods. The subjective evaluation method relies on human eye observation, while the objective evaluation method uses instruments to measure indicators such as the wrinkle recovery angle. Standards such as GB/T 3819 provide detailed test methods for the wrinkle recovery angle
to evaluate the physical and mechanical properties of non-woven interlinings, such as tensile strength, tear strength, abrasion resistance and wrinkle resistance, it is necessary to use professional equipment to test according to the corresponding test methods and standards, and to accurately record and analyze the test data. The evaluation of these properties is of great significance to the production quality control and product application of non-woven interlinings.
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