Non-slip polished floor covering

摘要

The highly polished surface of the floor covering (3) is made additionally slip resistant. It has friction values of greater than 0.40 between shoe sole and floor surface. The surface has a statistically spread out but irregular arrangement of indentations which are invisible to the naked eye but are lens-shaped, sharp-edged, as flat as possible in the form of micro craters with a suction pad type action. The indentations pref. have a diameter of 0.1 - 0.2 mm and a depth of 0.05 - 0.2 mm. With non-slip floor tiles of granite there are 100 to 250 indentations per square cm. The indentations are produced by impulse laser firing.