Leather Abrasion Testing Method – Martindale Abrasion Tester Method

Martindale Abrasion Tester, also known as Martindale Abrasion Tester, is mainly used to test the friction resistance of materials. It is generally used in the leather and textile industries. Martindale is used in the textile and leather industry. The test method of the abrasion tester is similar. Here, the engineer from the Standard Group (Hong Kong) Co., Ltd. explain to you the method of the Martindale abrasion tester for the leather abrasion test.

Test method for abrasion resistance of leather - Martindale method for abrasion resistance tester Basic principle:

Martindale Abrasion Tester is a test device manufactured according to the design principle of J.G. Martindale and in accordance with the specifications of the Wool Industry Research Association. It uses standard wool felt as the friction object to rub the tested items such as cloth, etc. Of course, the friction object can according to different test methodsand different requirements are changed from standard wool felt to other materials such as sandpaper to test the wear resistance of leather, gender or degree of depigmentation. The object under test is clamped on a cylinder, and a standard weight (determined according to the test method is pressed on the friction object, driven by the vertical and horizontal eccentric wheels to produce a Lissajous curve, the purpose is to achieve a multi- directional friction test For general footwear materials, the friction effect test during wear is usually performed by both dry and wet methods at the same time, to measure the impact of rain on the upper material of the shoe or the influence of sweat on the inner lining of the shoe.

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Test Method:
The Martindale Abrasion Tester can test a minimum of four samples at a time and can test up to nine samples at a time Each test position contains a protrusion Round base, this base has a flat ring,which can clamp friction objects, etc. The object under test is clamped on the cylinder and a load (weight) is added. If no weight is added, the weight of the flat plate is in friction. The pressure generated on the object , is about 0.1342Kg/cm2 or 13.16Kpa. Different test methods can choose different weights (weight) test stands. The test sample chair is driven by a flat plate to produce a Lissajous figure. The direction of movement, but the axis of each test sample seat is on the flat plate. For free rotation, a graphical sample of the measured object is clamped onto the fixture, and a specified weight is placed on it. After the clamp clamps the measured object, it rubs against the underlying stand. Materials (cloth, sandpaper, etc. determined by different test standards) make contact to produce a Lissajous figure. And produce a multidirectional Anytimes a Lissajous figure is completed, the counter jumps 16 times and the time is approximately 20 ± 1 second.

Martindale Abrasion Tester Test Operation Steps :
1. Turn on the power and turn on the power switch on the side of the instrument;
2. Check the positioning of the 3 bearing pulleys;
3 Set the desired speed;
a) Press the \"*\" key below the display to clear all individual counters;
b) Press \"0\" key to stop the operation of a particular counter;
c) Press the \"1\" key to count only the operation of a particular counter;
d) Press \"2\" to display data on a specific counter;
4. Place the sample and abrasive in the sample holder or on the sanding table according to the requirements of different method standards;
5. Press the green button to start the test;
6. Set the rotation After the song is completed, the machine beeps and lasts for 1 minh or press the red \"RST\" button to end the beep and return to the setting status;
7. If you perform the same action, you can directly press the green button; otherwise, reset the number of revolutions and press the green button to start running;
8. After the test is over, record the number of revolutions.

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