Patent ID: 9066579
Filing Date: 2015-06-30
Classification: A46B,A46D,Y10S

Abstract:
1. A process for producing a toothbrush covered with bristles in an anchor-free manner, in which multiple tufts of bristles with cylindrical bristles and/or pointed bristles are introduced into respective receiving recesses of a mold of a bristle-providing machine, wherein force is applied to the later free ends of the bristles of the tufts of bristles by means of multiple profiled pins, which are guided in the receiving recesses, for the alignment of the bristles of the tufts of bristles, so that the bristles of the tuft of bristles are aligned by means of a respective end face of the profiled pins and, as a result, form the topography that complements the topography of the end face of the profiled pins, wherein the profiled pins have, on the end face that acts on the bristles, a discontinuous surface which forms multiple levels configured to provide that, after the anchor-free fastening of the bristles to the toothbrush, 5% to 25% of the bristles of each tuft of bristles have their higher free bristle ends standing up higher in relation to their lower free bristle ends at a distance between 0.5 mm and 5 mm, wherein the higher free bristle ends of said multiple tufts of bristles form a continuing contour that is alternately convex and concave across a profile of the toothbrush.