Toothbrush

A - Human Necessities – 46 – D

Patent

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Details

A46D 1/05 (2006.01) A46B 3/06 (2006.01) A46B 5/00 (2006.01) A46D 1/00 (2006.01) A46D 1/055 (2006.01)

Patent

CA 2596685

A toothbrush which comprises a brush main body (10) made of a synthetic resin and having a bristle base (12) and bristles (2) made of a thermoplastic resin which have been fusion-bonded to the bristle base to constitute a bristled part, wherein the bristles (2) constituting the bristled part at least partly comprise: tapered bristles which are bristles having split free ends, the split free ends having been tapered beforehand; tapered bristles which have a sectional shape having a core-sheath structure or sea-island structure; or tapered bristles in each of which a core bristle comprising a core or island part has been formed beforehand so as to be exposed at the free end. The toothbrush has excellent suitability for bristle insertion into narrow parts, e.g., the gaps between neighboring teeth and gaps between the teeth and the gums. It is highly effective in removing dental plaque and cleaning the teeth. It is highly easy to use in the oral cavity. It further has a highly attractive appearance.

L'invention concerne une brosse à dents comportant un corps principal (10) fait d'une résine synthétique, pourvu d'une base porte-poils (12) et de poils (2) constitués d'une résine thermoplastique et collés par fusion à la base porte-poils, lesdits poils (2) comprenant au moins pour partie : des poils biseautés présentant des extrémités fendues, les extrémités fendues ayant été biseautées par avance ; des poils biseautés dont la section droite présente une structure de type noyau-gaine ou une structure en îlot ; ou des poils biseautés dans chacun desquels le noyau central ou îlot a été pré-formé afin d'être dénudé près de l'extrémité du poil. La brosse à dents est particulièrement bien adaptée pour l'insertion des poils dans des endroits étroits ou difficiles d'accès comme les espaces interdentaires et les espaces entre dents et gencives. Elle est très efficace pour éliminer la plaque dentaire et nettoyer les dents et très commode à utiliser dans la cavité buccale. La brosse possède en outre un aspect très plaisant.

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