It is used to test the degree of damage and decolorization of dyed shoe uppers and inner lining leather after friction. It is divided into two friction methods, dry temperature.Under the specified pressure, use the specified wool felt to perform a reciprocating friction test on a surface of the leather, test the specified number of times, compare the color changes of the wool felt surface and the leather surface with a gray sample card, determine the grade, and record Any visible changes or damage to the leather surface.
SATRA TM177, SATRA TM173, BS1006:UK-LG，IUF450 SLF450， DIN53339， EN344:5.16.EN20344:7.3
