The principle of the fabric pilling test is to simulate the friction experienced by a fabric in actual use, causing the surface fibers to break, fuzz, and further entangle into balls, thereby evaluating its anti-pilling performance. The specific analysis is as follows:
Testing Process
Friction: Under the action of friction, the surface fibers of the fabric are affected by mechanical force, causing them to break or loosen.
Fuzzing Stage: After the fibers break or loosen, fuzz is formed, protruding from the fabric surface.
Pilling Stage: As friction continues, the fuzz becomes entangled, forming small spherical structures, i.e., pills.
Testing Objective
To quantitatively evaluate the degree of fuzzing and pilling during the friction process, and determine its anti-pilling performance. This is of great significance for predicting the durability and appearance retention of fabrics in actual wear or use.
Testing Method
Circular Trajectory Method: The sample is rubbed against a nylon brush or abrasive along a circular trajectory to simulate localized wear during daily wear.
Martindale Method: The sample is rubbed against the same fabric or wool abrasive along a circular Lissajous trajectory to simulate long-term wear.
Rolling Box Method: The sample is placed on a polyurethane tube and randomly tumbled inside a cork-lined wooden box to simulate friction between fabrics.
Random Tumbling Method: The sample is randomly tumbled and rubbed in a cylindrical test chamber lined with cork and filled with a small amount of gray short cotton.
Testing Evaluation
Under specified lighting conditions, the rubbed samples are compared with standard photographs, and the pilling and fuzzing levels are assessed according to a certain rating standard (e.g., a 5-level scale, with 5 being the best and 1 the worst).
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