The Rub Resistance Tester is a specialized device for evaluating the rub resistance of ink layers on decorative printed paper products. It uses a sector rubbing method to rub the test ink specimen, with the number of rubs read directly from a counter. Based on the number of rubs and the degree of wear, the rub resistance of the ink is evaluated. The instrument has a rubbing speed of 54 rubs/min, with three selectable loads: 250g, 500g, and 1000g. The test specimen size is 100×200mm, and the rubbing paper size is 50×220mm. The equipment is easy to operate, with a digital counter that can preset the number of rubs and stops automatically when the set value is reached. Overall dimensions are 260×230×365mm, and the weight is approximately 20kg. This instrument is an essential verification tool for printing plants, ink manufacturers, and ink research departments, providing reliable data for ink formulation optimization and print quality evaluation.