The NM-1 ink printing abrasion resistance tester of Guangzhou Shounuo Scientific Instrument Co., Ltd. is a testing machine used to detect the ink abrasion resistance of ink printed matter. According to the friction load of international standards, paper, cardboard, leather and other sample printed matter are rubbed back and forth against each other at a specified speed to test the ink adhesion. The ink is judged by measuring the reduction in density (or reduction in coating thickness) before and after friction. The wear resistance of the layer (or coating).