Method for producing brushes

Abstract

The present invention relates to a method of producing brushes, especially toothbrushes, which comprise a brush body and at least one bristle bundle composed of a plurality of oriented bristle filaments, the method comprising the steps of introducing the bristle bundle into a channel which is formed on a moulding tool component, partially melting the bristle bundle at its fixing-side end so as to form an enlargement, closing the moulding tool and filling it with a flowable material. According to a first aspect of the present invention, the method is further developed in that at least a weakened length area of the bristle filaments, which is created when the bristle bundle is partially melted, is completely surrounded by the enlargement. According to a further aspect of the present invention, hot gas is used for forming the enlargement. The device for producing brushes, especially toothbrushes, which is suggested for executing the method in accordance with the present invention, comprises a moulding tool component which is a constituent part of a moulding tool and which is provided with at least one channel for holding a bristle bundle, and a mould filling device which communicates with the moulding tool component as well as a heating device which is associated with the moulding tool component and used for partially melting one end of the bristle bundle. In order to achieve short processing times, at least one hot-gas nozzle is provided which is directed towards the moulding tool component.

Dependencies are inferred from the claim text.