The Martindale abrasion tester can be used to test the abrasion resistance and pilling performance of knitted fabrics, woolen fabrics, artificial leather, synthetic leather, etc. under pressure.

Abrasion resistance test: The circular fabric sample is fixed on the grinding table, and the friction test is conducted with the friction head fixed with a standard friction cloth. There are three assessment methods: determination of sample damage, determination of mass loss, and assessment of appearance changes. Pilling and pilling test: simulate the pilling that occurs during normal wearing. Under slight pressure, rub the sample mounted on the sample clamp and the fabric on the grinding table against each other in a certain geometric pattern, and then grind the Compare and rate the sample with the standard sample. According to the type of the sample being tested, it can be simply divided into: knitted pilling evaluation sample photos, woven fabric pilling evaluation sample photos. It is divided into five levels according to the pilling situation: 5-no pilling; 4-slight pilling; 3-moderate pilling; 2-severe pilling; 1-very severe pilling.

Test operation process: 1. The sample is prepared in a standard environment, laid flat and without stretching for a period of time according to different standards. For example, 24h (GB/T 480 2.2-1997), 16h (EN ISO 12947-4:1998); 2. Sample selection: Cut a sample from different parts of the entire fabric, and the sample must be representative. If it is a fancy fabric, the sample should include all different textures and colors presented on the cloth; 3. Remove the load and load shaft from the tester; 4. Remove the top plate and test fixture; 5. Sample device : Loosen the fixing ring on the test fixture, remove the sample pressing piece, and place the sample into the base of the test fixture. When the fabric being tested is not larger than 500g/m2, a piece of polyester foam should be placed between the sample and the metal plug of the specimen clamp. If the fabric is larger than 500g/m2, there is no need to put a piece of polyester foam between the fabric and the composite fabric. The specimens on each specimen clamp should be subject to the same tension; 6. Installation of wool felt and friction cloth: Place the felt and abrasive on the grinding table, place the weight on the abrasive, then put on the pressure ring, and rotate Tighten the nut so that the pressure ring fixes the abrasive on the grinding table; 7. Place the grinding head on the abrasive to apply pressure; 8. Place the test fixture containing the sample face down on the base fixture, and adjust the circle of the test fixture Align the load shaft with the shaped groove so that the load shaft is inserted into the circular groove of the test fixture; 9. Set the number of times according to the standard, start the switch, and start testing. After reaching the set number of times, it will automatically stop and remove the sample. , compare the standard sample photos in the rating box.

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