Rotary Crock Meter

Rotary Crockmeter, is used to evaluate the degree of material damage and surface color transfer after dry or wet abrasion, or to determine the colour fastness of textiles to dry or wet rubbing. It is mainly applied to shoe upper materials such as leather, plastic and textile. It can also be used to evaluate the fastness to rubbing of printed lettering on the surface of shoes. The principle of the test is to use a round wool felt (dry or wet) to press the sample with a fixed weight, and the wool felt is rotated to rub the sample. After a fixed number of rubbings, the degree of discoloration of the samples was evaluated by a standard gray card.