Multi-filament bristles for toothbrushes

Details Multi-filament bristles for toothbrushes Multi-filament bristles for toothbrushes

A - Human Necessities

46

D

A46D 1/05 (2006.01)

Patent

CA 2645152

The invention relates to a bristle (1; 4; 7; 10; 13), in particular for toothbrushes, and to a corresponding production method, wherein the bristle, in the longitudinal direction, has at least two jointly extruded filaments (2, 3; 5, 6; 8, 9; 11, 12; 14, 15) made of different materials, wherein the cross-sectional area of at least one of the filaments (3; 5; 9; 11) decreases toward the free end of the bristle.

L'invention concerne un poil (1 ; 4 ; 7 ; 10 ; 13), notamment pour brosses à dents, ainsi qu'un procédé de fabrication correspondant, le poil présentant dans le sens longitudinal au moins deux filaments (2, 3 ; 5, 6 ; 8, 9 ; 11, 12 ; 14, 15) co-extrudés en des matériaux différents, la surface de la section transversale d'au moins l'un des filaments (3 ; 5 ; 9 ; 11) diminuant en direction de l'extrémité libre du poil.

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