ASTM F1571

Test Materials: ASTM F1571 specifies the use of printed samples, typically flexible packaging or labels, with a designated ink type to evaluate rub resistance. The sample must be conditioned at a specified temperature and humidity before testing.
Test Process: The ink rub test involves using a specified rub tester with a standardized abrasive pad. The sample is rubbed against the pad for a set number of cycles or until visible ink removal occurs. The number of rubs or cycles required before degradation indicates the rub resistance.
Test Result Interpretation: Test results are based on the degree of ink removal after the rub test. A higher number of rub cycles before visible damage indicates better rub resistance. Results are quantified according to predefined scales, such as loss of color or adhesion of ink.