The leather color fastness tester is specifically designed to evaluate the rubbing or abrasion resistance of leather materials. This test helps determine the performance and durability of the leather in terms of color transfer or fading when subjected to rubbing or friction.

Here's how the leather color fastness tester works:

1. Sample Preparation: Cut a specific size or shape of the leather material to be tested. The sample should be free from any surface imperfections or coatings.

2. Mounting the Sample: Securely attach the leather sample to the rotating drum of the color fastness tester. The sample is usually affixed using clamps or adhesives, ensuring that the surface to be tested is exposed and accessible.

3. Rubbing Procedure: The rotating drum, equipped with a rubbing finger or abrasive cloth, moves back and forth over the surface of the leather sample. The rubbing finger or cloth applies a controlled amount of pressure on the leather. The number of rubs applied and the pressure exerted can be adjusted according to the test requirements or standards.

4. Evaluation: After the rubbing process, the leather sample is examined for any color transfer or change. This can be visually assessed by comparing the rubbed area with an original reference or using a color assessment instrument. The degree of color transfer or change is evaluated and rated based on the established color fastness standards.

5. Analysis and Reporting: The test results are analyzed and recorded, indicating the level of color fastness achieved by the leather material. The information gathered from the test can be used to determine the suitability of the leather for various applications and to compare different leather samples or formulations.

By subjecting the leather sample to controlled rubbing, the color fastness tester simulates the wear and tear that the leather may encounter in real-world usage. This helps manufacturers and designers assess the quality and performance of the leather, enabling them to make informed decisions about its use in various products and applications.