1. Circular Track Fabric Pilling Test

According to the specified method and test parameters, use a nylon brush and abrasive, or abrasive alone, to cause the fabric to rub and pill. The fabric is then compared to a sample photo under specified lighting conditions to assess the pilling grade.

Testing equipment: Circular Track Pilling Tester, abrasive, foam plastic spacer, sample cutting tool, standard sample photo (5-grade scale), and rating box.

During measurement, the friction body can evenly abrade the fabric surface in multiple directions, following either a straight or elliptical trajectory. Therefore, the resulting pilling is similar to the pilling that occurs when the fabric is actually worn (e.g., on sleeves, elbows, knees, etc.). This method is applicable to all types of textile fabrics.

2. Martindale Fabric Pilling Test

A sample mounted on the abrasive head is rubbed against the fabric abrasive on the abrasive table a specified number of times under a specified pressure. The pilling grade is assessed by comparing the sample to a photograph under specified lighting conditions.

Testing equipment: Martindale abrasion tester, woven felt, sample spacer, punch, standard photograph, and rating box.

This method is suitable for most fabrics, but is particularly effective for wool fabrics.

3. Pilling Box Method Fabric Pilling Test

According to the specified method and test parameters, a fabric sample is placed on a polyurethane plastic tube and rolled in a rotating square wooden box lined with plastic cork. The pilling grade is assessed by comparing the sample with a photograph under specified lighting conditions.

Testing equipment: a pilling box tester, polyurethane plastic tube, sample punch, sewing machine, tape, standard sample, and rating box.

The pilling produced by this test method is similar to the pilling effect experienced during actual clothing, but the test time is longer.

This method is suitable for most fabrics, but is particularly suitable for wool knitted fabrics.

4. Sample Pilling Grade Example

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