Method of manufacturing of brushes, in particular, tooth brushes

A method of manufacturing brushes including a head portion having a plurality of openings, into which a respective plurality of bristle bundles is inserted, and a recess defining a back surface of the head portion, said method comprising the steps of:

• injection molding a brush body, together with the brush head, in a first mold having means for forming the plurality of openings in the brush head for receiving the respective plurality of the bristle bundles, and means for forming the brush head recess;
• inserting into the plurality of openings in the brush head the respective plurality of finished bristle bundles, and fusing the ends of the bristle bundles projecting from the back surface of the brush head at a bristle insertion station located separately from the first mold;
• and
• thereafter, filling the brush head recess with a plastic material in a second mold.