| 摘要 |
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, said method comprising the steps of introducing said bristle bundle into a channel, which is formed on a moulding tool component, partially melting said 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 according to the generic clause 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, it is suggested that hot gas should be 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 cannel for holding a bristle bundle, and a mould filling means which communicates with the moulding tool component as well as a heating means 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 when forming an enlargement, said device is, in accordance with the present invention, characterized in that the heating means comprises at least one hot-gas nozzle which is directed towards the moulding tool component.
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