EP0611170B1 - Mascara brush and method of manufacture - Google Patents

Mascara brush and method of manufacture Download PDF

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Publication number
EP0611170B1
EP0611170B1 EP94400003A EP94400003A EP0611170B1 EP 0611170 B1 EP0611170 B1 EP 0611170B1 EP 94400003 A EP94400003 A EP 94400003A EP 94400003 A EP94400003 A EP 94400003A EP 0611170 B1 EP0611170 B1 EP 0611170B1
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EP
European Patent Office
Prior art keywords
brush
core
branches
bristles
twisted
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
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EP94400003A
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German (de)
French (fr)
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EP0611170A1 (en
Inventor
Jean-Louis Gueret
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LOreal SA
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LOreal SA
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    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46D—MANUFACTURE OF BRUSHES
    • A46D3/00—Preparing, i.e. Manufacturing brush bodies
    • A46D3/04—Machines for inserting or fixing bristles in bodies
    • A46D3/05—Machines for inserting or fixing bristles in bodies for fixing the bristles between wires, tapes, or the like
    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B3/00—Brushes characterised by the way in which the bristles are fixed or joined in or on the brush body or carrier
    • A46B3/18—Brushes characterised by the way in which the bristles are fixed or joined in or on the brush body or carrier the bristles being fixed on or between belts or wires
    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B2200/00—Brushes characterized by their functions, uses or applications
    • A46B2200/10—For human or animal care
    • A46B2200/1046—Brush used for applying cosmetics
    • A46B2200/1053—Cosmetics applicator specifically for mascara

Definitions

  • the invention relates to a make-up brush, in particular for applying mascara to the eyelashes, of the kind which have a core formed from a metal wire curved in a U shape and the branches of which are twisted to trap them. radial hairs, the core being fixed to the end of a rod.
  • a brush of this type is shown, for example, by FR-A-2,663,826.
  • the brush is generally placed in a container containing the mascara, this container being provided with a neck equipped with a wringer crossed by the brush. It is desirable that the spin can be carried out with a lower resistance, ensuring better smoothing of the product along the bristles.
  • the invention aims, above all, to provide a makeup brush, in particular for applying mascara to the eyelashes, which no longer has, or to a lesser degree, the drawbacks mentioned above.
  • a makeup brush of the kind defined above is characterized in that the branches of the core are twisted by turning to the left to form turns which, seen along the axis of the core from the end fixed in the rod, rotate clockwise around the axis of the core when one advances from the rod towards the end of the brush, while the bristles of the brush form helical sheets rising from left to straight in an area between the core and an observer who holds in front of him the substantially vertical brush with its tip facing upwards.
  • the angle of inclination of the plies of bristles relative to the axis is approximately 35 °.
  • the rod carrying the core comprises, at its end remote from the core, a plug provided with a thread for screwing onto the neck of a container containing the mascara, this neck being equipped with a wringer crossed by the brush when removed from container; according to the invention, the branches of the brush core are twisted to form turns turning in the same direction as the thread of the plug.
  • the direction of screwing of the stopper relative to the container is the clockwise direction, and the branches of the core are twisted so that the turns turn in clockwise direction around the axis of the core when one progresses from the part of the core fixed in the rod towards the free end of the core.
  • the invention also relates to a method of manufacturing a makeup brush, method according to which after having folded a metal wire into a U, and after having placed bristles between the branches of the U, the branches of the U are twisted by making turn the curved part of the U counterclockwise relative to the free ends of the branches.
  • the direction of rotation of the brush and the direction of rotation of a clipper are reversed, relative to the usual direction of rotation.
  • Figure 1 of these drawings is a diagram illustrating the makeup of the eyelashes with a brush according to the prior art.
  • Figure 2 is a diagram, similar to that of Figure 1, illustrating makeup with a brush according to the invention.
  • Figures 3 and 4 are diagrams illustrating the manufacturing phases of the core of a brush according to the invention.
  • Figure 5 is a diagram illustrating the size of the bristles of the brush.
  • FIG. 6 is a schematic view along the line VI-VI of FIG. 5.
  • Figure 7 is a schematic section illustrating the start of the exit of a brush, according to the invention, from its mascara container.
  • Figure 8 illustrates the passage of the brush according to the invention through the wiper.
  • FIG. 9 is a diagram of an alternative embodiment of the brush.
  • FIG. 1 of the drawings one can see a diagram illustrating a makeup operation with a brush 100 of the prior art, carried by a rod 101.
  • the eyelid P of the right eye is seen from above.
  • the user holds the rod 101 with the right hand, forming an angle A between the axis of the rod and a parallel L to the average transverse line of the two eyes.
  • the angle A in practice, is of the order of 10 to 15 °.
  • the bristles 102 form helical layers 103 which, for an observer holding the brush 100 in front of him, vertically, with its end facing upwards, rise from right to left in the zone between observer and the axis of the brush.
  • eyelashes C are practically aligned with the layers 103 of bristles of the brush. This results in deposits of mascara packets on the eyelashes without their being separated by brushing. The resulting makeup needs to be improved.
  • a mascara brush 1 comprises a core 2 formed from a metal wire f bent in a U in a conventional manner as illustrated in FIG. 3, the bristles 3 being arranged between the branches 4 , 5 of the U, substantially perpendicular to the plane of these branches 4 and 5. Said branches 4 and 5 are then twisted by rotating to the left, that is to say in the opposite direction of the clock, the curved end of the U with respect to the free ends of the branches. This torsional movement is illustrated by an arrow g in FIG. 3.
  • the mean angle of inclination B of the sheets S with respect to the axis of the core 2 depends on the pitch of the turns of the core 2.
  • the eyelashes C appear transversely to the layers of bristles, which has the effect to apply the makeup product more evenly, and above all to separate the eyelashes C from the start.
  • the eyelashes C are found substantially at 70 ° across the layers S, for an angle B of approximately 35 °.
  • a mower 7 is used, for example of frustoconical shape, with an axis parallel to that of the core, but turned in the opposite direction.
  • the brush 1 and the mower 7 are rotated about their respective axes. Due to the reversal of the direction of the turns, compared to a conventional brush, the brush and the clipper are rotated in an opposite direction to that adopted for the size of a conventional brush.
  • the brush 1 generally comprises, at the end of the rod 6 remote from the core 2, a plug 8 (see FIGS. 7 and 8) provided with an internal thread 9 for screwing onto the external thread 10 of the neck 11 d 'a container R containing the mascara.
  • This neck 11 is equipped, internally, with a wiper 12 generally constituted by a sort of washer made of flexible material, in particular of elastomeric material; the diameter of the internal orifice of the wiper 12 is only slightly greater than that of the rod 6 so that the crossing of this wiper 12 takes place with a certain resistance developed by the bristles 3 which must bend at least partially.
  • the turns of the core 2 of the brush and the plies S of bristles rotate around the axis of the rod 6 in the same direction as the internal thread 9 of the plug 8 and that the external thread 10 of the neck 11.
  • the plies S of the brush 1 rotate in the same direction as the thread 9, the crossing of the wiper 12 by the plies S, driven in a rotation movement in the opposite direction of the clock, corresponds to an unscrewing of the brush 1 vis-à-vis the wiper 12, which reduces the resistance offered by the bristles 3 during the passage of the wiper 12.
  • the bristles 3 of the brush which are less resistant to the wringer, create less vacuum, therefore less plunging during extraction.
  • the product is better distributed along the hairs and these smooth the product better along the eyelashes C.
  • the pitch of the turns of the core 2 can be chosen to be different from the pitch of the thread 9, in order to modulate the spin through the wiper 12.
  • FIG. 9 illustrates a slightly different form of brush produced with bristles of larger cross section and the number of which per coil is reduced.
  • the brush may include an eccentric core.
  • the brush could have a mixture of bristles of different sections.
  • the bristles may have longitudinal capillary grooves or grooves.
  • the bristles can be tubular.
  • the cross section of the bristles 3 can have different shapes: circular, oval, multi-lobed, rectangular, flat, etc.
  • the ends of the bristles may be jagged or have a bulge.
  • the bristles can be formed from a mixture of relatively rigid bristles and more flexible bristles.
  • the bristles of large diameter may be longer or shorter than those of smaller diameter.
  • the bristles consist of a conventional thermoplastic material such as polyamides, polyesters, polyether-block amides or polytetrafluoroethylene. These thermoplastic materials may contain additives which modify the wettability of these bristles or their sliding characteristics. These additives are chosen from molybdenum sulfide, boron nitride or the product sold under the brand name "Teflon", fullerenes, graphite, talc, or the like.

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Brushes (AREA)

Description

L'invention est relative à une brosse de maquillage, en particulier pour appliquer du mascara sur les cils, du genre de celles qui comportent une âme formée à partir d'un fil métallique recourbé en U et dont les branches sont torsadées pour emprisonner entre elles des poils radiaux, l'âme étant fixée au bout d'une tige.The invention relates to a make-up brush, in particular for applying mascara to the eyelashes, of the kind which have a core formed from a metal wire curved in a U shape and the branches of which are twisted to trap them. radial hairs, the core being fixed to the end of a rod.

Une brosse de ce type est montrée, par exemple, par FR-A-2 663 826.A brush of this type is shown, for example, by FR-A-2,663,826.

Lors d'un maquillage, l'utilisatrice maintient la tige de la brosse en formant un angle non nul par rapport à la ligne transversale moyenne des deux yeux. Il en résulte qu'avec les brosses classiques, connues à ce jour, il arrive fréquemment à l'utilisatrice de présenter des poils de la brosse dans l'alignement des cils et de déposer des paquets de mascara, sans séparer les cils. Le maquillage obtenu demande donc à être amélioré.During makeup, the user maintains the brush rod at a non-zero angle relative to the average transverse line of the two eyes. It follows that with conventional brushes, known to date, it frequently happens to the user to present bristles of the brush in alignment with the eyelashes and to deposit packs of mascara, without separating the eyelashes. The makeup obtained therefore needs to be improved.

En outre, la brosse est généralement placée dans un récipient contenant le mascara, ce récipient étant muni d'un goulot équipé d'un essoreur traversé par la brosse. Il est souhaitable que l'essorage puisse s'effectuer avec une résistance plus réduite, assurant un meilleur lissage du produit le long des poils.In addition, the brush is generally placed in a container containing the mascara, this container being provided with a neck equipped with a wringer crossed by the brush. It is desirable that the spin can be carried out with a lower resistance, ensuring better smoothing of the product along the bristles.

L'invention a pour but, surtout, de fournir une brosse de maquillage, en particulier pour appliquer du mascara sur les cils, qui ne présente plus, ou à un degré moindre, les inconvénients rappelés ci-dessus.The invention aims, above all, to provide a makeup brush, in particular for applying mascara to the eyelashes, which no longer has, or to a lesser degree, the drawbacks mentioned above.

Selon l'invention, une brosse de maquillage du genre défini précédemment, est caractérisée par le fait que les branches de l'âme sont torsadées en tournant à gauche pour former des spires qui, vues suivant l'axe de l'âme depuis l'extrémité fixée dans la tige, tournent en sens d'horloge autour de l'axe de l'âme quand on progresse de la tige vers l'extrémité de la brosse, tandis que les poils de la brosse forment des nappes hélicoïdales montant de gauche à droite dans une zone située entre l'âme et un observateur qui tient devant lui la brosse sensiblement verticale avec sa pointe tournée vers le haut.According to the invention, a makeup brush of the kind defined above, is characterized in that the branches of the core are twisted by turning to the left to form turns which, seen along the axis of the core from the end fixed in the rod, rotate clockwise around the axis of the core when one advances from the rod towards the end of the brush, while the bristles of the brush form helical sheets rising from left to straight in an area between the core and an observer who holds in front of him the substantially vertical brush with its tip facing upwards.

De préférence, l'angle d'inclinaison des nappes de poils par rapport à l'axe est d'environ 35°.Preferably, the angle of inclination of the plies of bristles relative to the axis is approximately 35 °.

Généralement, la tige portant l'âme comporte, à son extrémité éloignée de l'âme, un bouchon muni d'un filetage pour vissage sur le goulot d'un récipient contenant le mascara, ce goulot étant équipé d'un essoreur traversé par la brosse lorsqu'elle est retirée du récipient ; selon l'invention, les branches de l'âme de la brosse sont torsadées pour former des spires tournant dans le même sens que le filetage du bouchon.Generally, the rod carrying the core comprises, at its end remote from the core, a plug provided with a thread for screwing onto the neck of a container containing the mascara, this neck being equipped with a wringer crossed by the brush when removed from container; according to the invention, the branches of the brush core are twisted to form turns turning in the same direction as the thread of the plug.

Pratiquement, le sens de vissage du bouchon relativement au récipient est le sens d'horloge, et les branches de l'âme sont torsadées de manière que les spires tournent en sens d'horloge autour de l'axe de l'âme quand on progresse de la partie de l'âme fixée dans la tige vers l'extrémité libre de l'âme.Practically, the direction of screwing of the stopper relative to the container is the clockwise direction, and the branches of the core are twisted so that the turns turn in clockwise direction around the axis of the core when one progresses from the part of the core fixed in the rod towards the free end of the core.

Ainsi, le mouvement de rotation assurant le dévissage du bouchon relativement au goulot a lieu dans le même sens que le mouvement de rotation qui provoque le dévissage de la brosse relativement à l'essoreur.Thus, the rotational movement ensuring the unscrewing of the plug relative to the neck takes place in the same direction as the rotational movement which causes the unscrewing of the brush relative to the wiper.

L'invention est également relative à un procédé de fabrication d'une brosse de maquillage, procédé selon lequel après avoir replié en U un fil métallique, et après avoir placé des poils entre les branches du U, on torsade les branches du U en faisant tourner en sens contraire d'horloge la partie recourbée du U relativement aux extrémités libres des branches.The invention also relates to a method of manufacturing a makeup brush, method according to which after having folded a metal wire into a U, and after having placed bristles between the branches of the U, the branches of the U are twisted by making turn the curved part of the U counterclockwise relative to the free ends of the branches.

Pour la mise en forme des poils de la brosse, on inverse le sens de rotation de la brosse et le sens de rotation d'une tondeuse, par rapport au sens de rotation habituel.For shaping the bristles of the brush, the direction of rotation of the brush and the direction of rotation of a clipper are reversed, relative to the usual direction of rotation.

L'invention consiste, mises à part les dispositions exposées ci-dessus, en un certain nombre d'autres dispositions dont il sera plus explicitement question ci-après à propos d'exemples de réalisation décrits avec référence aux dessins ci-annexés, mais qui ne sont nullement limitatifs.The invention consists, apart from the arrangements set out above, of a certain number of other arrangements which will be more explicitly discussed below in connection with embodiments described with reference to the attached drawings, but which are in no way limiting.

La figure 1 de ces dessins, est un schéma illustrant le maquillage des cils avec une brosse conforme à l'art antérieur.Figure 1 of these drawings is a diagram illustrating the makeup of the eyelashes with a brush according to the prior art.

La figure 2 est un schéma, semblable à celui de la figure 1, illustrant le maquillage avec une brosse conforme à l'invention.Figure 2 is a diagram, similar to that of Figure 1, illustrating makeup with a brush according to the invention.

Les figures 3 et 4 sont des schémas illustrant des phases de fabrication de l'âme d'une brosse selon l'invention.Figures 3 and 4 are diagrams illustrating the manufacturing phases of the core of a brush according to the invention.

La figure 5 est un schéma illustrant la taille des poils de la brosse.Figure 5 is a diagram illustrating the size of the bristles of the brush.

La figure 6 est une vue schématique selon la ligne VI-VI de la figure 5.FIG. 6 is a schematic view along the line VI-VI of FIG. 5.

La figure 7 est une coupe schématique illustrant le début de la sortie d'une brosse, selon l'invention, à partir de son récipient à mascara.Figure 7 is a schematic section illustrating the start of the exit of a brush, according to the invention, from its mascara container.

La figure 8 illustre le passage de la brosse selon l'invention à travers l'essoreur.Figure 8 illustrates the passage of the brush according to the invention through the wiper.

La figure 9, enfin, est un schéma d'une variante de réalisation de la brosse.Figure 9, finally, is a diagram of an alternative embodiment of the brush.

En se reportant à la figure 1 des dessins, on peut voir un schéma illustrant une opération de maquillage avec une brosse 100 de l'art antérieur, portée par une tige 101. La paupière P de l'oeil droit est vue de dessus. L'utilisatrice tient de la main droite la tige 101 en formant un angle A entre l'axe de la tige et une parallèle L à la ligne transversale moyenne des deux yeux. L'angle A, dans la pratique, est de l'ordre de 10 à 15°. Dans la brosse classique 100, les poils 102 forment des nappes 103 en hélice, qui, pour un observateur tenant la brosse 100 devant lui, verticalement, avec son extrémité tournée vers le haut, montent de droite à gauche dans la zone comprise entre l'observateur et l'axe de la brosse.Referring to Figure 1 of the drawings, one can see a diagram illustrating a makeup operation with a brush 100 of the prior art, carried by a rod 101. The eyelid P of the right eye is seen from above. The user holds the rod 101 with the right hand, forming an angle A between the axis of the rod and a parallel L to the average transverse line of the two eyes. The angle A, in practice, is of the order of 10 to 15 °. In the conventional brush 100, the bristles 102 form helical layers 103 which, for an observer holding the brush 100 in front of him, vertically, with its end facing upwards, rise from right to left in the zone between observer and the axis of the brush.

Avec une telle disposition, comme visible sur la figure 1, des cils C sont pratiquement alignés avec les nappes 103 de poils de la brosse. Il en résulte des dépôts de paquets de mascara sur les cils sans que ceux-ci soient séparés par un brossage. Le maquillage résultant demande à être amélioré.With such an arrangement, as visible in FIG. 1, eyelashes C are practically aligned with the layers 103 of bristles of the brush. This results in deposits of mascara packets on the eyelashes without their being separated by brushing. The resulting makeup needs to be improved.

Pour cela, selon l'invention, une brosse 1 à mascara comporte une âme 2 formée à partir d'un fil métallique f recourbé en U d'une manière classique comme illustré sur la figure 3, les poils 3 étant disposés entre les branches 4, 5 du U, sensiblement perpendiculairement au plan de ces branches 4 et 5. Lesdites branches 4 et 5 sont ensuite torsadées en faisant tourner à gauche, c'est-à-dire dans le sens contraire d'horloge, l'extrémité recourbée du U par rapport aux extrémités libres des branches. Ce mouvement de torsion est illustré par une flèche g sur la figure 3.For this, according to the invention, a mascara brush 1 comprises a core 2 formed from a metal wire f bent in a U in a conventional manner as illustrated in FIG. 3, the bristles 3 being arranged between the branches 4 , 5 of the U, substantially perpendicular to the plane of these branches 4 and 5. Said branches 4 and 5 are then twisted by rotating to the left, that is to say in the opposite direction of the clock, the curved end of the U with respect to the free ends of the branches. This torsional movement is illustrated by an arrow g in FIG. 3.

Pour bien montrer les spires obtenues, on a représenté, sur la figure 4, les branches 4, 5 torsadées partiellement, les spires n'étant pas encore sensiblement jointives. Lorsque l'âme est terminée, comme illustré sur la figure 2, les spires sont pratiquement jointives serrant entre elles les poils 3.To clearly show the turns obtained, there is shown in Figure 4, the branches 4, 5 partially twisted, the turns are not yet substantially contiguous. When the core is finished, as illustrated in FIG. 2, the turns are practically contiguous, pressing the bristles 3 together.

Il apparaît d'après les figures 2 et 4 que les spires de l'âme 2, vues suivant l'axe X depuis les extrémités libres des branches 4, 5 destinées à être fixées dans la tige, tournent en sens d'horloge autour de l'axe X de l'âme quand on progresse de l'extrémité libre des branches 4, 5, vers l'extrémité opposée de l'âme. Les poils 3 de la brosse forment des nappes hélicoïdales S montant de gauche à droite dans une zone située entre l'âme et un observateur qui tient devant lui la brosse sensiblement verticale avec sa pointe tournée vers le haut. Pour bien illustrer ce sens de montée des nappes S, celles qui sont situées en avant du plan du dessin ont été représentées en traits pleins, tandis que celles qui sont situées en arrière du plan ont été représentées en tirets.It appears from Figures 2 and 4 that the turns of the core 2, seen along the axis X from the free ends of the branches 4, 5 intended to be fixed in the rod, rotate clockwise around the axis X of the core when one progresses from the free end of the branches 4, 5, towards the opposite end of the core. The bristles 3 of the brush form helical sheets S rising from left to right in an area between the core and an observer who holds the substantially vertical brush in front of him with his tip facing upwards. To illustrate this direction of rise of the layers S, those which are located in front of the drawing plane have been shown in solid lines, while those which are located behind the plane have been shown in dashes.

L'angle moyen d'inclinaison B des nappes S par rapport à l'axe de l'âme 2 dépend du pas des spires de l'âme 2.The mean angle of inclination B of the sheets S with respect to the axis of the core 2 depends on the pitch of the turns of the core 2.

Avec une brosse 1 conforme à l'invention, dont les spires sont inversées par rapport à une brosse classique, lors du maquillage, comme illustré sur la figure 2, les cils C se présentent transversalement aux nappes S de poils, ce qui a pour effet de déposer le produit de maquillage de façon plus homogène, et surtout de séparer les cils C dès le départ. Avec le même angle A d'environ 15°, les cils C se retrouvent sensiblement à 70° en travers des nappes S, pour un angle B d'environ 35°.With a brush 1 in accordance with the invention, the turns of which are reversed with respect to a conventional brush, during makeup, as illustrated in FIG. 2, the eyelashes C appear transversely to the layers of bristles, which has the effect to apply the makeup product more evenly, and above all to separate the eyelashes C from the start. With the same angle A of approximately 15 °, the eyelashes C are found substantially at 70 ° across the layers S, for an angle B of approximately 35 °.

Les poils 3, lorsqu'ils sont placés entre les branches 4, 5 du U, comme illustré sur la figure 3, ont généralement la même longueur et leurs extrémités sont alignées, le milieu des poils se trouvant sensiblement sur l'axe de l'âme. Il en résulte qu'après torsion des branches 4, 5 la surface enveloppe des extrémités des poils est une surface cylindrique, de révolution autour de l'axe X de l'âme. Généralement, on donne à la brosse 1 une forme différente de la forme cylindrique, par exemple une forme tronconique effilée vers l'extrémité éloignée de la tige.The bristles 3, when placed between the branches 4, 5 of the U, as illustrated in FIG. 3, generally have the same length and their ends are aligned, the middle of the bristles being substantially on the axis of the soul. It follows that after twisting of the branches 4, 5 the envelope surface of the ends of the bristles is a cylindrical surface, of revolution around the axis X of the core. Generally, the brush 1 is given a shape different from the cylindrical shape, for example a frustoconical shape tapered towards the end remote from the rod.

Pour cela, on utilise une tondeuse 7, par exemple de forme tronconique, d'axe parallèle à celui de l'âme, mais tourné en sens opposé. Lors de l'opération de coupe, on fait tourner la brosse 1 et la tondeuse 7 autour de leur axe respectif. Du fait de l'inversion du sens des spires, par rapport à une brosse classique, la brosse et la tondeuse sont mises en rotation dans un sens inverse de celui adopté pour la taille d'une brosse classique.For this, a mower 7 is used, for example of frustoconical shape, with an axis parallel to that of the core, but turned in the opposite direction. During the cutting operation, the brush 1 and the mower 7 are rotated about their respective axes. Due to the reversal of the direction of the turns, compared to a conventional brush, the brush and the clipper are rotated in an opposite direction to that adopted for the size of a conventional brush.

La brosse 1 comporte, généralement, à l'extrémité de la tige 6 éloignée de l'âme 2, un bouchon 8 (voir figures 7 et 8) muni d'un filetage interne 9 pour vissage sur le filetage externe 10 du goulot 11 d'un récipient R contenant le mascara. Ce goulot 11 est équipé, intérieurement, d'un essoreur 12 généralement constitué par une sorte de rondelle en matière souple, notamment en matière élastomère ; le diamètre de l'orifice interne de l'essoreur 12 n'est que légèrement supérieur à celui de la tige 6 de sorte que la traversée de cet essoreur 12 a lieu avec une certaine résistance développée par les poils 3 qui doivent se plier au moins partiellement.The brush 1 generally comprises, at the end of the rod 6 remote from the core 2, a plug 8 (see FIGS. 7 and 8) provided with an internal thread 9 for screwing onto the external thread 10 of the neck 11 d 'a container R containing the mascara. This neck 11 is equipped, internally, with a wiper 12 generally constituted by a sort of washer made of flexible material, in particular of elastomeric material; the diameter of the internal orifice of the wiper 12 is only slightly greater than that of the rod 6 so that the crossing of this wiper 12 takes place with a certain resistance developed by the bristles 3 which must bend at least partially.

Selon l'invention, les spires de l'âme 2 de la brosse et les nappes S de poils tournent autour de l'axe de la tige 6 dans le même sens que le filetage interne 9 du bouchon 8 et que le filetage externe 10 du goulot 11.According to the invention, the turns of the core 2 of the brush and the plies S of bristles rotate around the axis of the rod 6 in the same direction as the internal thread 9 of the plug 8 and that the external thread 10 of the neck 11.

Lors de l'extraction de la brosse 1 du récipient R, l'utilisatrice exerce tout d'abord un mouvement de rotation sur le bouchon 8 pour le dévisser du goulot 11. Ce mouvement de rotation s'effectue en sens contraire d'horloge. Lorsque le bouchon 8 est dévissé, l'utilisatrice termine l'extraction en exerçant un mouvement de translation. Dans la pratique, ce mouvement de translation s'accompagne d'un mouvement de rotation dans le même sens que celui qui a provoqué le dévissage du bouchon 8.During the extraction of the brush 1 from the container R, the user first of all exerts a rotational movement on the plug 8 to unscrew it from the neck 11. This rotational movement takes place in the opposite direction of the clock. When the cap 8 is unscrewed, the user completes the extraction by exerting a translational movement. In practice, this translational movement is accompanied by a rotational movement in the same direction as that which caused the unscrewing of the plug 8.

Du fait que les nappes S de la brosse 1 tournent dans le même sens que le filetage 9, le franchissement de l'essoreur 12 par les nappes S, animées d'un mouvement de rotation en sens contraire d'horloge, correspond à un dévissage de la brosse 1 vis-à-vis de l'essoreur 12, ce qui réduit la résistance offerte par les poils 3 lors du passage de l'essoreur 12.Because the plies S of the brush 1 rotate in the same direction as the thread 9, the crossing of the wiper 12 by the plies S, driven in a rotation movement in the opposite direction of the clock, corresponds to an unscrewing of the brush 1 vis-à-vis the wiper 12, which reduces the resistance offered by the bristles 3 during the passage of the wiper 12.

Les poils 3 de la brosse résistant moins à l'essoreur créent moins de dépression, donc moins de pistonnage lors de l'extraction. Le produit est mieux réparti le long des poils et ceux-ci lissent mieux le produit le long des cils C.The bristles 3 of the brush, which are less resistant to the wringer, create less vacuum, therefore less plunging during extraction. The product is better distributed along the hairs and these smooth the product better along the eyelashes C.

Le pas des spires de l'âme 2 peut être choisi différent du pas du filetage 9, pour moduler l'essorage à travers l'essoreur 12.The pitch of the turns of the core 2 can be chosen to be different from the pitch of the thread 9, in order to modulate the spin through the wiper 12.

De nombreuses variantes de réalisation de la brosse 1 sont possibles. La figure 9 illustre une forme légèrement différente de brosse réalisée avec des poils de plus forte section et dont le nombre par spire est réduit. La brosse peut comporter une âme excentrée.Many variants of the brush 1 are possible. FIG. 9 illustrates a slightly different form of brush produced with bristles of larger cross section and the number of which per coil is reduced. The brush may include an eccentric core.

La brosse pourrait comporter un mélange de poils de sections différentes. Les poils peuvent comporter des rainures ou cannelures capillaires longitudinales. Les poils peuvent être tubulaires.The brush could have a mixture of bristles of different sections. The bristles may have longitudinal capillary grooves or grooves. The bristles can be tubular.

La section transversale des poils 3 peut avoir des formes différentes : circulaire, ovale, multilobée, rectangulaire, plate, etc...The cross section of the bristles 3 can have different shapes: circular, oval, multi-lobed, rectangular, flat, etc.

Les extrémités des poils peuvent être déchiquetées ou comporter un renflement. Les poils peuvent être formés d'un mélange de poils relativement rigides et de poils plus souples.The ends of the bristles may be jagged or have a bulge. The bristles can be formed from a mixture of relatively rigid bristles and more flexible bristles.

Dans le cas d'un mélange de poils de diamètre différent, les poils de gros diamètre peuvent être plus longs ou plus courts que ceux de diamètre plus réduit. Les poils sont constitués d'une matière thermoplastique classique comme les polyamides, les polyesters, les polyéther-bloc-amides ou le polytetrafluoroéthylène. Ces matières thermoplastiques peuvent contenir des additifs modifiant la mouillabilité de ces poils ou leurs caractéristiques de glissement. Ces additifs sont choisis parmi le sulfure de molybdène, le nitrure de bore ou le produit commercialisé sous la marque "Teflon", les fullérènes, le graphite, le talc, ou matières analogues.In the case of a mixture of bristles of different diameter, the bristles of large diameter may be longer or shorter than those of smaller diameter. The bristles consist of a conventional thermoplastic material such as polyamides, polyesters, polyether-block amides or polytetrafluoroethylene. These thermoplastic materials may contain additives which modify the wettability of these bristles or their sliding characteristics. These additives are chosen from molybdenum sulfide, boron nitride or the product sold under the brand name "Teflon", fullerenes, graphite, talc, or the like.

Claims (5)

  1. Make-up brush, particularly for applying mascara to the eyelashes, including a core formed from a metal wire bent into a U and the branches of which are twisted to trap radial bristles between them, the core being fixed to the end of a wand, characterized in that the branches (4, 5) of the core (2) are twisted, turning to the left, to form turns which, viewed along the axis (X) from that end of the core which is fixed in the wand, (6) turn in the clockwise direction about the axis of the core when progressing from the wand (6) towards the end of the brush, whereas the bristles (3) of the brush form helical layers (S) rising from left to right in the area located between the core (2) and an observer who holds the substantially vertical brush (1) in front of him/her with its tip pointing upwards.
  2. Brush according to Claim 1, characterized in that the angle of inclination (B) of the layers of bristles (S) with respect to the axis (X) of the brush is approximately 35°.
  3. Brush according to Claim 1 or 2, in which the wand (6) carrying the core includes, at its other end, distant from the core, a stopper (8) provided with a screw thread (9) for screwing onto the neck (11) of a container (R) containing the mascara, this neck (11) being equipped with a wringing device (12) through which the brush passes when it is withdrawn from the container, characterized in that the branches (4, 5) of the core (2) of the brush are twisted to form turns turning in the same direction as the screw thread (9) of the stopper.
  4. Brush according to Claim 3, for which the direction of screwing of the stopper (8) relative to the container (11) is the clockwise direction, characterized in that the branches (4, 5) of the core (2) are twisted so that the turns turn in the clockwise direction about the axis (X) of the core, when progressing from that part of the core which is fixed in the wand towards the free end of the core.
  5. Method for manufacturing a make-up brush, particularly for applying mascara to the eyelashes, according to which method, after having folded a metal wire (f) over into a U and after having placed bristles (3) between the branches (4, 5) of the U, the branches of the U are twisted, characterized in that, to twist the branches, the bent part of the U is turned in the anticlockwise direction (g) relative to the free ends of the branches (4, 5).
EP94400003A 1993-02-08 1994-01-03 Mascara brush and method of manufacture Expired - Lifetime EP0611170B1 (en)

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Application Number Priority Date Filing Date Title
FR9301344A FR2701198B1 (en) 1993-02-08 1993-02-08 Make-up brush and method of manufacturing such a brush.
FR9301344 1993-02-08

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EP0611170A1 EP0611170A1 (en) 1994-08-17
EP0611170B1 true EP0611170B1 (en) 1997-05-14

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EP (1) EP0611170B1 (en)
JP (1) JP2819233B2 (en)
DE (1) DE69403100T2 (en)
ES (1) ES2101450T3 (en)
FR (1) FR2701198B1 (en)

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US7476044B2 (en) 2004-02-06 2009-01-13 L'oreal Packaging and applicator device including a wiper member
US7820151B2 (en) 2004-02-13 2010-10-26 L'oreal S.A. Composition for coating keratin fibers, comprising at least one tacky wax and fibers

Also Published As

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JPH06237818A (en) 1994-08-30
US20010001029A1 (en) 2001-05-10
US6309123B2 (en) 2001-10-30
ES2101450T3 (en) 1997-07-01
JP2819233B2 (en) 1998-10-30
US20010001027A1 (en) 2001-05-10
US6325562B2 (en) 2001-12-04
US20010001632A1 (en) 2001-05-24
FR2701198A1 (en) 1994-08-12
US6099183A (en) 2000-08-08
US20010002227A1 (en) 2001-05-31
DE69403100T2 (en) 1998-01-02
US6331086B2 (en) 2001-12-18
FR2701198B1 (en) 1995-04-21
US6227735B1 (en) 2001-05-08
US6296411B2 (en) 2001-10-02
US20010001028A1 (en) 2001-05-10
US6299370B2 (en) 2001-10-09
US6305862B2 (en) 2001-10-23
DE69403100D1 (en) 1997-06-19
EP0611170A1 (en) 1994-08-17
US6345923B2 (en) 2002-02-12
US20010009629A1 (en) 2001-07-26
US6299371B1 (en) 2001-10-09
US20010008598A1 (en) 2001-07-19

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