Martindale test method for abrasion resistance of textiles

This method is based on the ASTM D4966 test method for textile abrasion resistance in the Martindale test method as the standard to introduce the test method.

ASTM D4966 Textile Abrasion Resistance Test (Martindale Method)

1. Scope

1-1 This standard is measured by Martindale Abrasion Tester For the abrasion resistance of textiles, this standard applies to all textiles, but for pile fabrics, when the pile height reaches 2mm, it may be more difficult to test with this method.

1-2 This method uses the inch-pound system as the standard unit, and the SI system can also be used as an auxiliary unit.

1-3 This standard does not introduce security. However, it is hoped that some management documents related to safety and hygiene will have to be prepared before this standard is applied.

1-4 Other common wear test methods are: ASTM D3884, ASTM D3885 ASTM D3886, ASTM D4157, ASTM D4158, AATCC 93.

2. Principle

Abrasion test refers to rubbing the sample along the path of a geometric figure under the known pressure and friction mode. The figure is first a straight line and then widen and widen to form an ellipse shape, then narrowed again, finally forming a straight line in the opposite direction of the original straight line. The sample is repeatedly rubbed along the above trajectory up to the specified number of cycles. 11-3 describes different methods to evaluate wear resistance.

3. Terminology

1) Abrasion resistance: the loss of some parts of the raw material due to friction with another surface.

2) Wear cycle: The number of movement circles required to complete a complete geometric figure in the Martindale wear tester.

3) Cycle: In Martindale clothing, a full Lissajous curve must move 16 graphs.

4) Lissajous fighours: a geometric figure, which is a straight line at first, then slowly widens to become an ellipse, then narrows again and finally becomes a straight line again. The whole cycle takes 16 circles.

5) Circle: The outer two gears of the Martindale Wear Tester rotate in one circle.

6) Standard atmospheric pressure for textile preconditioning: the relative humidity is 10-25% and the temperature should not exceed 50°C.

7) Standard atmospheric pressure for controlling the humidity of textiles: The standard environment for testing textiles should be a relative humidity of 65 ± 2% and a temperature of 21 ± 1°C.

4. Instruments and raw materials

1) Standard wear-resistant cloth: plain weave, hybrid worsted fabric, the specifications are as follows:2) Standard wool felt, cloth weight 22 ± 1.5 OZ/Yd2, thickness 3 ± 0.3 mm.

3) Sponge foam pad: thickness 3 ± 0.3mm, density 29 ~ 31 kg/m3, the hardness is 38.23~47.22 lbs.

4) Sample cutter, the diameters of the cut samples are 38mm and 140mm respectively.

5) AATCC color-changing gray card.

Source artag: Standard Group (Hong Kong) Co., Ltd.

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