Method for producing bristles used to administer media,...

A - Human Necessities – 46 – D

Patent

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A46D 1/00 (2006.01)

Patent

CA 2405071

The invention relates to bristles used to administer media (6, 5, 52, 53) which are produced as follows: a filament which can be cut to form a bristle and which comprises (3) a core that co-determines the mechanical properties of said bristle is extruded. The bristle comprises recesses (4), positioned at a distance from one another, which radiate outwards from the centre of the core, open out onto the periphery of the filament and are filled externally with the medium. The recesses comprising said peripheral opening are configured in such a way that the medium is only dispensed under conditions which are in accordance with the requirements for use of the brush. Alternatively, the recesses can also have a greater open width and can be covered by a layer or a jacket (7). The invention also relates to a bristle and to brushware comprising bristles of this type.

L'invention concerne des poils utilisés pour appliquer des substances (6, 5, 52, 53), produits de la façon suivante: un filament qui peut être coupé pour former des poils et qui comprend un coeur (3) qui codétermine les propriétés mécaniques desdits poils est extrudé; et des évidements (4) sont formés, à une certaine distance l'un de l'autre, à partir du centre du coeur et de façon à déboucher sur la périphérie du filament, puis remplis avec une substance depuis l'extérieur. Ces évidements présentant une ouverture côté périphérie sont configurés de telle sorte que la substance n'est délivrée que dans des conditions régnant lors de l'utilisation, conforme aux prescriptions, desdits poils. Dans une variante, lesdits évidements présentent également une largeur d'ouverture plus grande et sont recouvertes d'une couche ou d'une enveloppe (7). L'invention concerne également des poils produits selon ce procédé et des articles pourvus de tels poils.

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