Protecting ring i.e. scraper ring, for fitting or pressing on upper edge of dye can or adhesive can, has circular groove at side of ring, where inner dimension of ring is smaller than dimension of opening of can

摘要

The ring (1) has a circular groove at a side of the ring, where outer dimension of the ring is larger than dimension of a dye can or an adhesive can. Inner dimension of the ring is smaller than dimension of an opening of the dye can or adhesive can (4). The ring is made of metal or plastic and contains a nano coating, so the ring comprises a lotus effect. The ring lies at an upper can edge (3) in a form-fit manner. The ring comprises the inner dimension of 65 mm to 85 mm and outer dimension of 95 mm to 115 mm. The ring is pressed on the upper can edge.