Patent ID: 7475691

Claim:
A mascara brush, comprising a plurality of bristles ( 2 ) which stand out radially and are held between two intertwisted wires, tips of the bristles having varying lengths in such a way that envelope sections ( 5 , 6 ) formed by the bristle tips are put into practice which, seen in a circumferential direction (P), lie radially further outwards and radially further inwards, wherein, the lengths along the circumferential direction (P) of the envelope sections ( 5 ) formed by longer bristles ( 2 a ) are shorter than those of the envelope sections ( 6 ) formed by shorter bristles ( 2 b ); wherein the envelope sections ( 5 , 6 ) are convex; wherein the lengths of the longer bristles are all of the same length in a cross section of the brush; and wherein the envelope sections of the longer bristles each form a ridge extending parallel and continuously to said intertwisted wires which is limited by a first edge and a second edge each of which is parallel to said intertwisted wires; wherein, the width of the first and second edges respectively extend down radially toward said intertwisted wires from outer ends of the first and second edges engaged at a top surface of the ridge to inner ends of the first and second edges engaged at the top surface of a corresponding envelope of shorter bristles, wherein the width of the first edge is greater than that of the second edge, and wherein the length of all the shorter bristles ( 2 b ) increase progressively outward along the circumferential direction (arrow P) between the inner end of the first edge of one ridge of the longer bristles and the inner end of the second edge of another ridge of the longer bristles and wherein the first edge and the second edge lie on a radius of curvature of the associated envelope sections ( 6 ).