Martindale abrasion tester of Fabric Wear Resistance

The abrasion resistance tester refers to the wear resistance between the fabric or the fabric and other substances in the repeated friction process. Test methods for textile wear resistance include planar abrasive, curved abrasive, folded abrasive and composite wear. The Martindale is a planar wear method, which is widely used in testing clothing and home textiles, wear resistance of decorative fabrics and furniture.

★ 5 forms of fabric wear damage

In actual use, due to the difference in wear, the structure of the yarn and the fabric and the structure of the fabric are different, and therefore the mechanism of wear damage is different, and the following points are in the form of damage.

1 During the friction, the fibers are constantly colliding, and the fiber fragments are broken due to fatigue damage, resulting in yarn breakage.

2 fibers are pulled out of the fabric, resulting in loose yarn / fabric structure. After repeated operation, the fibers may be pulled out, resulting in thinning and decomposition of yarns and fabrics.

3 The fibers are cut and broken, resulting in yarn breakage.

4 Fiber surface wear, fragments fall off from the surface of the fiber.

5 Friction produces high temperatures, resulting in melting or plastic deformation of fibers. Affect the structure and mechanical properties of the fibers.

★ Three aspects of the Martindale Delphology test fabric wear resistance

Martindale abrasion tester is applied to wear-resistant needle fabrics, woolen fabrics, artificial leather, synthetic leather, etc. at a certain pressure. It is applied in the form of planar wear, generally analyzed and evaluates from three aspects: the measurement of sample breakdown, measurement of mass loss and changes in appearance.

Martindale Wear and Standby Tester

The measurement of sample decomposition under a certain load, the sample was friction in the plane of the Lissajous curve and the total amount of friction, and the wear resistance of the fabric when the sample was broken.

Determination of mass loss Under a certain load, the sample in the fixture and the abrasive friction on the Lissajous surface, and after the sample is friction, wear resistance is determined by the mass difference before and after the rubbing fastness tester.

Appearance Change Evaluate the circular sample to withstand the specified load and rubbed with the abrasive medium (standard fabric) in the translational movement of Lissajous graphics. The evaluation of fabric wear resistance is determined by the evaluation of appearance.

Textile wear resistance test procedure: Martindale Charm

Sample decomposition assay

This method is suitable for all textile fabrics, but not suitable for fabrics with low wear life.

1 abrasive selection. Different standard abrasives are selected depending on the characteristics of the sample.

No coated fabric: woven flat fabric.

Coating fabric: No. 600 waterproof sandpaper.

Abrasives are separated from the sheep felt with the abrasive table. After testing, check the surface of the felt, if stains or wear, please replace it.

2 sampling method. At least 3 pieces, the woven fabric should contain different warp yarns and weft yarns. For jacquard or fancy tissues, each of the features of the complete tissue should be included, and each portion can be sampled separately when the complete tissue or pattern is large.

3 Selection of jig liners. Determine the quality of the specimen unit area, remember to be A. If A ≥ 500g / m2, if a <500g / m does not require foam pad 2, a foam pad is added to the sample clamp and replaced after each test.

4 Total effective quality of the friction load, including mounting brackets and load weight. According to the technical specifications provided by TESTEX TF 210 Martindale and the starting test machine, the weight of the mounting bracket: (2500 ± 500) g, loading weight: (395 ± 7) g, (595 ± 7) g.

According to the sample use and fabric characteristics, three corresponding total effective quality is selected for the friction load.

4.1 (795 ± 7) G: Woven fabric for overalls, indoor decoration, bedding, technical fabrics.

4.2 (595 ± 7) G: Woven fabric for clothing and household textiles, excluding indoor decor and bedding, excluding coating fabrics.

4.3 (198 ± 2) g: Used for clothing coating fabrics.

5 abrasive replacement interval

Standard wool fabric: 50,000 cycles; standard waterproof sandpaper: 6,000 cycles.

6 check interval

Estimating the number of frictional times when the test piece reaches the breakdown, on which the number of friction is set as the inspection interval, observe the wear state of the surface of the test piece.

7 measurement results

It is determined that the total friction of each sample is broken as a wear count.

In the three methods of testing the wear resistance of the Martindale, the common method is that the sample breakdown was measured, the error was small, the test results were intuitive, and the wear resistance of different fabrics was easily used for clothing and decorative fabrics. Quality loss measurement method and appearance change test results are more complicated, but it can reflect the wear resistance of the sample in different friction stages, which has a strong use of the use of the fabric in the textile testing equipment manufacturers of enterprises or research units.