Abstract
It has been demonstrated that none of the existing testing methods for abrasion resistance is suitable for the testing of low basis weight (areal weight) polypropylene nonwovens in the range of 15 g/m2 to 25 g/m2. Thus, a novel test method has been developed in which the samples are scanned after certain intervals of abrasion cycles on the Martindale abrasion tester using a standard flatbed scanner. From the greyscale images generated, the total pill area and the number of pills can be determined automatically using a simple image evaluation procedure that was optimized in this study. It was possible to objectively determine the influence of pressure, basis weight, test speed and number of test cycles, as well as the influence of aging of the silicone rubber abradant, which is typically used as an abradant to imitate the contact of nonwovens with human skin.
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