【Scope of application】 The roller box pilling tester is used to test the degree of pilling of fabrics (especially wool knitted fabrics) without pressure. 【Related standards】 GB/T4802.3, ISO 12945.1, BS5811, JIS L1076, IWS TM152 【Test Mode】 Put the fabric sample on the sample tube, put it in a square wooden box lined with rubber cork with a specific friction coefficient, and roll it to the specified number of times. Compare it with the standard sample to assess the pilling level.