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EP0842620B1 - Brush for application of a cosmetic product and a make-up device with such a brush. - Google Patents

Brush for application of a cosmetic product and a make-up device with such a brush. Download PDF

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Publication number
EP0842620B1
EP0842620B1 EP97402501A EP97402501A EP0842620B1 EP 0842620 B1 EP0842620 B1 EP 0842620B1 EP 97402501 A EP97402501 A EP 97402501A EP 97402501 A EP97402501 A EP 97402501A EP 0842620 B1 EP0842620 B1 EP 0842620B1
Authority
EP
European Patent Office
Prior art keywords
brush
axis
core
section
cross
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
Application number
EP97402501A
Other languages
German (de)
French (fr)
Other versions
EP0842620A1 (en
Inventor
Jean-Louis H. Gueret
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
LOreal SA
Original Assignee
LOreal SA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by LOreal SA filed Critical LOreal SA
Publication of EP0842620A1 publication Critical patent/EP0842620A1/en
Application granted granted Critical
Publication of EP0842620B1 publication Critical patent/EP0842620B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B9/00—Arrangements of the bristles in the brush body
    • A46B9/02—Position or arrangement of bristles in relation to surface of the brush body, e.g. inclined, in rows, in groups
    • A46B9/028—Bristle profile, the end of the bristle defining a surface other than a single plane or deviating from a simple geometric form, e.g. cylinder, sphere or cone
    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B9/00—Arrangements of the bristles in the brush body
    • A46B9/02—Position or arrangement of bristles in relation to surface of the brush body, e.g. inclined, in rows, in groups
    • A46B9/021—Position or arrangement of bristles in relation to surface of the brush body, e.g. inclined, in rows, in groups arranged like in cosmetics brushes, e.g. mascara, nail polish, eye shadow
    • 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 brush, in particular a brush for applying a product.
  • cosmetic on keratin fibers in particular for applying mascara to the eyelashes or a dye on the hair, as well as a makeup device comprising this brush, the brush having a curved core.
  • a brush for applying a cosmetic product comprises a elongated core formed by the helical winding of two branches of a metal wire, which was folded into a U before the branches were twisted, hairs implanted radially in this core and clamped between these coiled branches.
  • Such brushes can be of various shapes and include cutouts.
  • brushes having the shape of a torus fragment these brushes being obtained by the torsional arc of the core of a cylindrical brush.
  • Such brushes have a convex face, a concave face and two substantially flat.
  • Such brushes are not very easy to handle: in fact, if the user does turn the rod of such a brush between its fingers around its axis, to apply a product on the eyelashes for example, it must constantly correct the distance of the brush eyelashes. It is difficult with these brushes, to make up the corner of the eye without burrs on the eyelids and the wing of the nose.
  • it has been found that such a brush charges the eyelashes. smoothing and separating them little. Brushes obtained by the arc twist of circle of the core of a cylindrical-conical brush have the same drawbacks.
  • the invention aims to provide a brush which remains simple and economical to apply and practical to use.
  • the Applicant unexpectedly discovered new brushes for applying a cosmetic product, which when used to apply a mascara on the eyelashes make it possible to obtain a very separate, very curled, very elongated with a product distributed over the entire length of the eyelash. These brushes are also very easy to handle and make it possible to easily make up the corner of the eye.
  • the subject of the invention is a brush comprising a rod defining an axis (X-X) main ; a core comprising first and second ends, the first end being integral with the rod; hairs implanted radially in this core, the end of the bristles defining the envelope surface of the brush, this surface envelope having first and second ends and having, over at least part of its length, a cross section of elongated shape along one more axis long length (Z-Z), characterized in that the core describes a curve (C) in a plane of curvature (P) and that the longest axis (Z-Z) is parallel to the plane of curvature (P).
  • the cross section of the envelope surface is understood to mean a section of the surface envelope in a plane perpendicular to the core.
  • the curve (C) is substantially circular.
  • the part of the brush is finding in the concavity of the curve (C) forms a first side called comb.
  • the part of the brush on the opposite side also forms a comb.
  • the brush according to the invention has two wide and flat surfaces.
  • the side located in the hollow of the brush is very close by its shape to the contour of the eyelashes.
  • it has long bristles and therefore very flexible and these bristles converge. he can so take care of the eyelashes over the entire width of the eyelid, lengthen them and bend.
  • This comb having a high density of hairs, it promotes the bending of the eyelash.
  • the opposite side also forms a comb but less dense, more airy, because its hairs diverge. This second side can therefore more easily comb the eyelashes and spread the product. over their entire length.
  • the two sides are narrow with respect to the faces of the brush. They can therefore penetrate the eyelashes to separate them over their entire length.
  • the distance between the two faces being smaller than the width of the brush, the latter can be easily slipped into the corner of the eye to make up the eyelashes, without smearing around the corner of the eye.
  • the two sides of the brush which have shorter bristles, and therefore less flexible, that the sides, and which are wider, allow to apply the product on the eyelashes very effectively.
  • the core is central with respect to each cross section.
  • the cross section has at least two sides along the longest axis (Z-Z), these sides being substantially parallel to the axis (Z-Z).
  • the cross section has at least two sides along the longest axis (Z-Z), these sides being convex.
  • the sides of the section cross have two ends, the width of the section along the axis (Y-Y), perpendicular to the longest axis (Z-Z), to one of these ends or to these two ends being substantially zero.
  • the cross section has at least two sides along the axis (Y-Y), axis perpendicular to the axis of greatest length (Z-Z), these sides being convex in shape.
  • the cross section has a maximum width (D) along the axis of greatest length (ZZ) and a maximum width (d) along the axis (YY), D and d verifying the relationship: D> 1.5d
  • D and d verify the relation: D> 2d
  • the greatest length D can vary along the core.
  • brushes are preferred whose surface envelope has a cross section elongated over at least 50% and preferably 75%, of its length.
  • the brushes according to the invention are provided so that for each cross section, the axis of greatest length and the axis of greatest width are perpendicular.
  • the ends of the core are aligned on the X-X axis.
  • steps (i) and (ii) are carried out so that the core is central with respect to the faces of the straight clipped brush.
  • the starting brush is mowed so that the surface envelope has a cross section elongated over at least 50%, and preferably 75% of its length.
  • step (iii) is carried out so as to impart to the core a main torsion substantially in an arc.
  • the bristles of the brushes according to the invention can be of any kind: bristles different lengths, different diameters or different sections and materials different, hairs with tapered ends, fork or pin head shape, or having undergone any kind of treatment known to those skilled in the art.
  • the brush according to the invention comprises an alternation of rows of short hairs and long hairs, only long hairs being taken into account to define the brush shell surface.
  • Such a variant of the invention makes it possible to accentuate the loading the eyelash with product by the brush of the invention.
  • the starting brush has been ground before undergoing the process according to the invention, so that it comprises long, scattered hairs, which are not not taken into account to define the envelope surface of the starting brush.
  • the helical winding of the two branches of the metallic wire forming the core can be planned with a step to the right, as is usually expected in the manufacture of makeup brushes, or step left, as taught by demand FR-A-2701198.
  • the branches of the soul is twisted by turning to the left to form turns which turn in direction of clock around the core when one progresses from the rod towards the end of the brush.
  • the invention also relates to a makeup device comprising a reservoir for mascara and a mascara applicator as described above.
  • the flexibility of the hairs and the flexibility of the core can be adjusted so as to promote or to counter the spin of the brush.
  • Figures 1, 1A, 2A and 3A are perspective views of brushes that can be used to make a brush according to the invention.
  • Figures 1B, 2B and 3B are perspective views of brushes respectively according to 1A, 2A and 3A which have been mowed according to step (ii) of the method according to the invention.
  • Figures 1C, 2C and 3C are sections along the IC-IC, IIC-11C and IIIC-IIIC planes of the brushes shown respectively in Figures 1B, 2B and 3B.
  • FIGS. 1D, 2D and 3D are perspective views of brushes according to the invention, manufactured according to the method according to the invention, respectively from brushes shown in Figures 1A, 2A and 3A.
  • Figure 4 is a sectional view of a device for making up the eyes.
  • the brush 100 shown in Figures 1 and 1A has a straight rod 101 defining a main axis X-X.
  • a relatively flexible core 102 defining the length of the brush, this soul (which we have represented in these figures although it is inside the brush) elongated, formed by helically winding two branches of a wire 103 which was folded into a U before the branches were twisted.
  • the axis of the soul 102 coincides with the main axis X-X.
  • Bristles 104 are implanted radially between the branches of the wire 103. When the branches of the wire 103 are twisted, the hairs are tightened and held between the helical turns of the core 102.
  • the ends of the bristles 104 define the surface 105 of the brush: it is a convex surface of revolution which has the shaped like a rugby ball and the ends of which consist of two sections straight: disc 106.a, center 108.a and disc 106.b center 108.b.
  • FIG. 1A Using a clipper, two substantially flat parallel faces are cut from the brush of FIG. 1A over almost the entire length (measured along the axis XX) of the brush. In FIG. 1A is shown the intersection ( ⁇ 1 ) of the surface 105 of the brush with the mowing plane. This gives a clipped brush shown in Figures 1B and 1C.
  • the brush shown in FIGS. 1B and 1C has two faces 119 parallel between them and parallel to the X-X axis. These two faces are equidistant from the core 112. The distance between the two faces is d. The two faces are connected by rounded edges 120. On the area where the faces 119 were cut, the sections of the following brush a plane perpendicular to X-X consist of curves 115c, represented on the Figure 1C, substantially rectangular, of great length D along the axis of plus greater length Z-Z and greater width d measured along the axis of greater width Y-Y with D> 1.5d. The two faces do not extend to the ends 117a and 117b of the brush. At these ends, the sections 116a, 116b of the brush are circular.
  • the curve 115c is symmetrical with respect to the axes of greater length Z-Z and wider Y-Y.
  • the core is printed 112, using an appropriate tool, for example by pressing it longitudinally around a metal cylinder, a first twist in the plane parallel to faces 119, between sections 116.a and 116.b, so that the core has a forms substantially in an arc, then a second twist, in the same plane, between the end 111.1 of the rod and the center 118.a of the end section of the brush, so as to align the center 118.b of the other end of the brush on the main axis X-X like the first end 118.a.
  • the brush of Figure 1D has substantially the shape of a sickle; the core 122 describes a curve C 1 , substantially in an arc. However, its ends 128.a and 128.b are aligned on the main axis XX.
  • the brush has two faces 129a, 129b. These two faces are connected by rounded edges 120.
  • the surface 125 of the brush is generated by a series of curves 115c, as shown in FIG. 1C, evolving along the core 122; these curves are substantially rectangular, with axes of greater length (ZZ) parallel to each other.
  • the brush is generated by circular curves.
  • FIG. 2A is distinguished from FIG. 1A by the fact that the surface 205 of the brush departure has the shape of a truncated cone.
  • FIG. 2A over the entire length (measured along the axis X-X) of the brush.
  • FIG. 2B and 2C We get a mowed brush shown in Figures 2B and 2C.
  • the brush shown in FIGS. 2B and 2C has two rounded faces 219 and intersecting. These two faces are symmetrical with respect to the web 212. The distance between the vertices of the two faces is d. d is substantially constant from one end of the brush to another. The two faces are connected by edges 220 ending in edges 220a.
  • the sections of the brush in a plane perpendicular to X-X are consisting of curves 215c, shown in Figure 2C, having substantially the shape with one eye, of great length D along the axis of greatest length Z-Z and more large width d measured along the axis of greatest width Y-Y.
  • D has been growing for a first end 216b to a second end 216a with D> 2d on the curve 215c shown in Figure 2C.
  • the two mowed faces extend to the sections ends 216a and 216b of the brush.
  • Curve 215c is symmetrical with respect to axes of greater length Z-Z and greater width Y-Y.
  • the core is printed 212, using an appropriate tool, for example by pressing it longitudinally around a metal cylinder, a first twist in the plane parallel to axis Z-Z and passing through rod 211, between sections 216.a and 216.b, such so that the soul has a shape substantially in an arc, then a second twist, in the same plane, between the end 211.1 of the rod and the center 218.a of the section end of the brush, so as to align the center 218.b of the other end of the brush on the main axis X-X like the first end 218.a.
  • the brush of Figure 2D has substantially the shape of a sickle; the core 222 describes a curve C 2 , substantially in an arc. However, its ends 228.a and 228.b are aligned on the main axis XX.
  • the surface 225 of the brush comprises two faces 229a, 229b. These two faces are connected by two substantially circular edges 230a, 230b.
  • the surface 225 of the brush is generated by a series of curves 215c, as shown in FIG. 2C, evolving along the core 222; these curves have substantially the shape of an eye, of axes of greater length (ZZ) parallel to each other.
  • FIG. 3A differs from FIG. 1A by the fact that the intersection ( ⁇ 3 ) of a cross section, here the end section 306b, of the surface 305 of the brush, with the cutting plane, has the shaped like a drop.
  • the brush shown in FIGS. 3B and 3C has two rounded faces 319 and intersecting. These two faces are symmetrical with respect to the plane passing through the core 312 and including the longest axis Z-Z. The distance between the vertices of the two faces is d. d is substantially constant from one end of the brush to the other. The two faces are connected by edges: 320a rounded and 320b at the edge.
  • the sections of the brush along a plane perpendicular to X-X consist of curves 315c, shown in Figure 3C, having substantially the shape of a drop, of large length D along the axis of greatest length Z-Z and greatest width d measured along the axis of greatest width Y-Y.
  • the largest width d is not central with respect to the greatest length D.
  • D is constant along the axis of the core with D> 2d on the curve 315c represented in FIG. 3C. Both sides trimmed extend to the end sections 316a and 316b of the brush.
  • the curve 315c is symmetrical with respect to the axis of greatest length Z-Z but not by relative to the axis of greatest width Y-Y.
  • the core is printed 312, using an appropriate tool, for example by pressing it longitudinally around a metal cylinder, a first twist in the plane parallel to axis Z-Z and passing through rod 311, between sections 316.a and 316.b, such so that the soul has a shape substantially in an arc, then a second twist, in the same plane, between the end 311.1 of the rod and the center 318.a of the section end of the brush, so as to align the center 318.b of the other end of the brush on the main axis X-X like the first end 318.a.
  • the brush of Figure 3D has substantially the shape of a sickle; the core 322 describes a curve C 3 , substantially in an arc. However, its ends 328.a and 228.b are aligned on the main axis XX.
  • the surface 325 of the brush comprises two faces 329. These two faces are connected by an edge 330b and a rounded edge 330a, substantially circular.
  • the surface 325 of the brush is generated by a series of curves 315c, as shown in FIG. 3C, evolving along the core 322; these curves have substantially the shape of a drop, of axes of greater length (ZZ) parallel to each other and parallel to the plane of curvature.
  • starting brushes in the shape of a rugby ball and a truncated shape but we can also use a starting brush having a shape chosen from: a cylinder, a double cone assembled by the bases of the two cones of identical size, a fish as described for example in the French patent application published under the number FR-A-2730910, a peanut, a shell, a tear.
  • the device for making up the eyes shown in FIG. 4 comprises a cylindrical tank 420, which has a threaded neck 424, surmounted by a seal seal 425 and which is filled with a mascara 415.
  • the reservoir 420 has in its neck of a wiper 421, maintaining the wiper in position in the neck being ensured thanks to a bead 426 which cooperates with the shoulder separating the neck from the reservoir 420 proper.
  • the wiper 421 is made, in a known manner, of a material flexible and elastic.
  • An applicator is intended to cooperate with the reservoir 420. This applicator consists of a gripping means 423 which supports the member application 430, comprising a rod 422 and an application member 401, identical to those shown in Figures 1D or 2D.
  • the gripping means 423 has the form of a cap and has a thread 423a which cooperates with the thread 424a of the neck of the tank.
  • the sealed closure of the reservoir 420 is obtained by screwing the means of gripping 423 on the neck 424 of the tank provided with its seal 425.
  • the applicator member 430 When the applicator member 430 is extracted from the reservoir, the applicator member having the shape of a brush loaded with mascara passes through the wringer 421. It wrings the bristles of the back of the brush more prominently than the bristles of the hollow of the brush. The bristles on the sides of the brush are very wrung out.
  • the brush When applied to the eyelashes, the brush loads the eyelashes with product from both sides, then she spreads the product, lengthens and curls the eyelash by its back and hollow faces, it comb by its sides.
  • the hairs on the sides being very long compared to the rest of the hairs of the brush, the bristles of the hollow of the brush having a shape capable of marrying the contour of the eyelid and the comb being thin, the eyelashes are very well taken in charge during combing which is very effective.
  • the brush according to the invention offers the advantage of being very easy to use, of making up all of the eyelid hairs without burrs, to allow a very elongated, very curled makeup and very separate.

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Description

L'invention est relative à une brosse, en particulier une brosse pour appliquer un produit cosmétique sur les fibres kératiniques, notamment pour appliquer du mascara sur les cils ou une teinture sur les cheveux, ainsi qu'à un dispositif de maquillage comportant cette brosse, la brosse ayant une âme courbe.The invention relates to a brush, in particular a brush for applying a product. cosmetic on keratin fibers, in particular for applying mascara to the eyelashes or a dye on the hair, as well as a makeup device comprising this brush, the brush having a curved core.

Habituellement, une brosse pour l'application d'un produit cosmétique comprend une âme allongée formée par l'enroulement en hélice de deux branches d'un fil métallique, qui a été replié en U avant que les branches ne soient torsadées, des poils implantés radialement dans cette âme et serrés entre ces branches enroulées. De telles brosses peuvent être de formes variées et comporter des découpes.Usually, a brush for applying a cosmetic product comprises a elongated core formed by the helical winding of two branches of a metal wire, which was folded into a U before the branches were twisted, hairs implanted radially in this core and clamped between these coiled branches. Such brushes can be of various shapes and include cutouts.

Dans le cas où ces brosses sont utilisées pour appliquer un mascara sur les cils, de telles formes et de telles découpes sont prévues pour permettre l'obtention d'un maquillage plus ou moins chargé, un allongement et un recourbement plus ou moins important des cils.In the event that these brushes are used to apply mascara to the eyelashes, such shapes and such cuts are provided to allow obtaining a more or less loaded make-up, more or less elongation and bending important eyelashes.

Le document US-A-5 357 987 décrit une brosse selon le préambule de la revendication 1.US-A-5,357,987 describes a brush according to the preamble of claim 1.

On connaít des brosses ayant la forme d'un fragment de tore, ces brosses étant obtenues par la torsion en arc de cercle de l'âme d'une brosse cylindrique. De telles brosses présentent une face convexe, une face concave et deux faces sensiblement planes. De telles brosses sont d'une manipulation peu aisée : en effet, si l'utilisateur fait tourner entre ses doigts la tige d'une telle brosse autour de son axe, pour appliquer un produit sur les cils par exemple, il doit en permanence rectifier la distance de la brosse aux cils. Il est difficile avec ces brosses, de maquiller le coin de l'oeil sans bavures sur la paupières et l'aile du nez. En outre, on a constaté qu'une telle brosse chargeait les cils en les lissant et en les séparant peu. Des brosses obtenues par la torsion en arc de cercle de l'âme d'une brosse cylindro-cônique présentent les mêmes inconvénients.We know brushes having the shape of a torus fragment, these brushes being obtained by the torsional arc of the core of a cylindrical brush. Such brushes have a convex face, a concave face and two substantially flat. Such brushes are not very easy to handle: in fact, if the user does turn the rod of such a brush between its fingers around its axis, to apply a product on the eyelashes for example, it must constantly correct the distance of the brush eyelashes. It is difficult with these brushes, to make up the corner of the eye without burrs on the eyelids and the wing of the nose. In addition, it has been found that such a brush charges the eyelashes. smoothing and separating them little. Brushes obtained by the arc twist of circle of the core of a cylindrical-conical brush have the same drawbacks.

Il est apparu donc souhaitable de disposer de brosses permettant une bonne prise en charge des cils par la brosse pour assurer un bon lissage du produit et une bonne séparation des cils. L'invention a pour but également de fournir une brosse qui reste d'application simple et économique et d'une utilisation pratique.It therefore appeared desirable to have brushes allowing good grip. load of the eyelashes by the brush to ensure a good smoothing of the product and a good separation of eyelashes. The invention also aims to provide a brush which remains simple and economical to apply and practical to use.

La demanderesse a découvert de façon inattendue de nouvelles brosses pour l'application d'un produit cosmétique, qui, lorsqu'elles sont employées pour appliquer un mascara sur les cils permettent d'obtenir un maquillage très séparé, très recourbé, très allongé avec un produit réparti sur toute la longueur du cil. Ces brosses sont par ailleurs d'une manipulation très facile et permettent de maquiller facilement le coin de l'oeil.The Applicant unexpectedly discovered new brushes for applying a cosmetic product, which when used to apply a mascara on the eyelashes make it possible to obtain a very separate, very curled, very elongated with a product distributed over the entire length of the eyelash. These brushes are also very easy to handle and make it possible to easily make up the corner of the eye.

L'invention a pour objet une brosse comprenant une tige définissant un axe (X-X) principal ; une âme comportant une première et une seconde extrémités, la première extrémité étant solidaire de la tige ; des poils implantés radialement dans cette âme, l'extrémité des poils définissant la surface enveloppe de la brosse, cette surface enveloppe comportant une première et une seconde extrémités et présentant, sur au moins une partie de sa longueur, une section transversale de forme allongée selon un axe de plus grande longueur (Z-Z), caractérisée en ce que l'âme décrit une courbe (C) dans un plan de courbure (P) et que l'axe de plus grande longueur (Z-Z) est parallèle au plan de courbure (P). The subject of the invention is a brush comprising a rod defining an axis (X-X) main ; a core comprising first and second ends, the first end being integral with the rod; hairs implanted radially in this core, the end of the bristles defining the envelope surface of the brush, this surface envelope having first and second ends and having, over at least part of its length, a cross section of elongated shape along one more axis long length (Z-Z), characterized in that the core describes a curve (C) in a plane of curvature (P) and that the longest axis (Z-Z) is parallel to the plane of curvature (P).

On entend par section transversale de la surface enveloppe une section de la surface enveloppe suivant un plan perpendiculaire à l'âme.The cross section of the envelope surface is understood to mean a section of the surface envelope in a plane perpendicular to the core.

Préférentiellement, la courbe (C) est sensiblement circulaire. La partie de la brosse se trouvant dans la concavité de la courbe (C) forme un premier côté appelé peigne. La partie de la brosse se trouvant du côté opposé forme également un peigne.Preferably, the curve (C) is substantially circular. The part of the brush is finding in the concavity of the curve (C) forms a first side called comb. The part of the brush on the opposite side also forms a comb.

Les sections transversales de la surface enveloppe de la brosse étant allongées, suivant l'axe de plus grande longueur, dans le sens parallèle au plan (P) de torsion de l'âme, la brosse selon l'invention présente deux faces larges et applaties.The cross sections of the envelope surface of the brush being elongated, according to the axis of greatest length, in the direction parallel to the plane (P) of torsion of the core, the brush according to the invention has two wide and flat surfaces.

Le côté situé dans le creux de la brosse est très proche par sa forme du contour des cils. En outre, il comporte des poils longs et donc très souples et ces poils convergent. Il peut donc prendre en charge les cils sur toute la largeur de la paupière, les allonger et les recourber. Ce peigne présentant un forte densité de poils, il favorise le recourbement du cil. Le côté opposé forme aussi un peigne mais moins dense, plus aéré, car ses poils divergent. Ce second côté peut donc plus facilement peigner les cils et étaler le produit sur toute leur longueur. Les deux côtés sont étroits par rapport aux faces de la brosse. Ils peuvent donc bien pénétrer dans les cils pour les séparer sur toute leur longueur.The side located in the hollow of the brush is very close by its shape to the contour of the eyelashes. In addition, it has long bristles and therefore very flexible and these bristles converge. he can so take care of the eyelashes over the entire width of the eyelid, lengthen them and bend. This comb having a high density of hairs, it promotes the bending of the eyelash. The opposite side also forms a comb but less dense, more airy, because its hairs diverge. This second side can therefore more easily comb the eyelashes and spread the product. over their entire length. The two sides are narrow with respect to the faces of the brush. They can therefore penetrate the eyelashes to separate them over their entire length.

La distance entre les deux faces étant plus petite que la largeur de la brosse, celle-ci peut se glisser facilement dans le coin de l'oeil pour maquiller les cils, sans bavures autour du coin de l'oeil.The distance between the two faces being smaller than the width of the brush, the latter can be easily slipped into the corner of the eye to make up the eyelashes, without smearing around the corner of the eye.

Les deux faces de la brosse, qui comportent des poils plus courts, et donc moins souples, que les côtés, et qui sont plus larges, permettent d'appliquer le produit sur les cils de façon très efficace.The two sides of the brush, which have shorter bristles, and therefore less flexible, that the sides, and which are wider, allow to apply the product on the eyelashes very effectively.

Les caractéristiques très accentuées et nettement différentes des faces et des côtés confèrent à cette brosse un comportement dynamique surprenant : lorsque l'utilisateur fait tourner la brosse entre ses doigts, les cils sont alternativement chargés et recourbés puis peignés avec une intensité inhabituelle.The very accentuated and markedly different characteristics of the faces and sides give this brush a surprising dynamic behavior: when the user rotates the brush between his fingers, the eyelashes are alternately charged and curled then combed with unusual intensity.

De préférence, l'âme est centrale par rapport à chaque section transversale.Preferably, the core is central with respect to each cross section.

Selon une première variante de l'invention, on peut prévoir que la section transversale présente au moins deux côtés selon l'axe de plus grande longueur (Z-Z), ces côtés étant sensiblement parallèles à l'axe (Z-Z).According to a first variant of the invention, it can be provided that the cross section has at least two sides along the longest axis (Z-Z), these sides being substantially parallel to the axis (Z-Z).

Selon une seconde variante de l'invention, on peut prévoir que la section transversale présente au moins deux côtés selon l'axe de plus grande longueur (Z-Z), ces côtés étant de forme convexe. Selon cette variante, on peut prévoir que les côtés de la section transversale présentent deux extrémités, la largeur de la section selon l'axe (Y-Y), perpendiculaire à l'axe de plus grande longueur (Z-Z), à l'une de ces extrémités ou à ces deux extrémités étant sensiblement nulle.According to a second variant of the invention, it can be provided that the cross section has at least two sides along the longest axis (Z-Z), these sides being convex. According to this variant, it can be provided that the sides of the section cross have two ends, the width of the section along the axis (Y-Y), perpendicular to the longest axis (Z-Z), to one of these ends or to these two ends being substantially zero.

Quelle que soit la variante de l'invention, on préfère que la section transversale présente au moins deux côtés selon l'axe (Y-Y), axe perpendiculaire à l'axe de plus grande longueur (Z-Z), ces côtés étant de forme convexe. Whatever the variant of the invention, it is preferred that the cross section has at least two sides along the axis (Y-Y), axis perpendicular to the axis of greatest length (Z-Z), these sides being convex in shape.

Avantageusement, la section transversale présente une largeur maximale (D) suivant l'axe de plus grande longueur (Z-Z) et une largeur maximale (d) suivant l'axe (Y-Y), D et d vérifiant la relation : D>1,5d Advantageously, the cross section has a maximum width (D) along the axis of greatest length (ZZ) and a maximum width (d) along the axis (YY), D and d verifying the relationship: D> 1.5d

Encore plus préférentiellement, D et d vérifient la relation : D>2d Even more preferably, D and d verify the relation: D> 2d

La plus grande longueur D peut varier le long de l'âme. Afin d'accentuer les caractéristiques de maquillage décrites ci-dessus, on préfère des brosses dont la surface enveloppe présente une section transversale allongée sur au moins 50% et préférentiellement 75%, de sa longueur.The greatest length D can vary along the core. In order to accentuate the makeup characteristics described above, brushes are preferred whose surface envelope has a cross section elongated over at least 50% and preferably 75%, of its length.

Avantageusement, les brosses selon l'invention sont prévues de telle sorte que pour chaque section transversale, l'axe de plus grande longueur et l'axe de plus grande largeur sont perpendiculaires.Advantageously, the brushes according to the invention are provided so that for each cross section, the axis of greatest length and the axis of greatest width are perpendicular.

Pour une plus grande facilité de manipulation, on prévoit de préférence que les extrêmités de l'âme sont alignées sur l'axe X-X.For greater ease of handling, it is preferably provided that the ends of the core are aligned on the X-X axis.

L'invention a également pour objet un procédé de fabrication d'une brosse telle que décrite ci-dessus, comprenant les étapes suivantes :

  • (i) réaliser une brosse de départ comportant une tige définissant un axe principal (X-X), une âme comportant une première et une seconde extrémités, la première extrémité étant solidaire de cette tige, l'âme étant droite et dans l'alignement de la tige, des poils étant implantés radialement dans cette âme, l'extrémité des poils définissant une surface enveloppe de la brosse de départ,
  • (ii) tondre les poils de la brosse de départ de manière à ce que la surface enveloppe de la brosse présente sur au moins une partie de sa longueur, une section transversale de forme allongée selon un axe de plus grande longueur (Z-Z),
  • (iii) imprimer à l'âme une torsion principale dans le plan parallèle à l'axe de plus grande longueur (Z-Z) et passant par la tige.
    • The invention also relates to a method of manufacturing a brush as described above, comprising the following steps:
  • (i) make a starting brush comprising a rod defining a main axis (XX), a core comprising first and second ends, the first end being integral with this rod, the core being straight and in alignment with the stem, bristles being implanted radially in this core, the end of the bristles defining an envelope surface of the starting brush,
  • (ii) trimming the bristles of the starting brush so that the envelope surface of the brush has, over at least part of its length, a cross section of elongated shape along an axis of greatest length (ZZ),
  • (iii) impart to the core a main torsion in the plane parallel to the axis of greatest length (ZZ) and passing through the rod.

    • De préférence, dans une quatrième étape :

  • (iv) on imprime une torsion secondaire à l'extrémité de l'âme qui est solidaire de la tige afin d'aligner la seconde extrémité de l'âme sur l'axe principal (X-X).
    • Preferably, in a fourth step:
  • (iv) a secondary torsion is printed at the end of the core which is integral with the rod in order to align the second end of the core on the main axis (XX).

    • Préférentiellement, on procède aux étapes (i) et (ii) de façon à ce que l'âme soit centrale par rapport aux faces de la brosse tondue droite.Preferably, steps (i) and (ii) are carried out so that the core is central with respect to the faces of the straight clipped brush.

    Préférentiellement, la brosse de départ est tondue de façon à ce que la surface enveloppe présente une section transversale allongée sur au moins 50%, et préférentiellement 75% de sa longueur.Preferably, the starting brush is mowed so that the surface envelope has a cross section elongated over at least 50%, and preferably 75% of its length.

    Selon un mode préféré de réalisation de l'invention on procède à l'étape (iii) de façon à imprimer à l'âme une torsion principale sensiblement en arc de cercle. According to a preferred embodiment of the invention, step (iii) is carried out so as to impart to the core a main torsion substantially in an arc.

    En outre, les poils des brosses selon l'invention peuvent être de toute espèce : poils de longueurs différentes, de diamètres différents ou de sections différentes et de matières différentes, poils à extrémités effilées, en forme de fourchette ou de tête d'épingle, ou ayant subi toute sorte de traitement connu de l'homme du métier.In addition, the bristles of the brushes according to the invention can be of any kind: bristles different lengths, different diameters or different sections and materials different, hairs with tapered ends, fork or pin head shape, or having undergone any kind of treatment known to those skilled in the art.

    On peut prévoir que la brosse selon l'invention comporte une alternance de rangées de poils courts et de poils longs, les poils longs étant seuls pris en compte pour définir la surface enveloppe de la brosse. Une telle variante de l'invention permet d'accentuer le chargement du cil en produit par la brosse de l'invention.It can be provided that the brush according to the invention comprises an alternation of rows of short hairs and long hairs, only long hairs being taken into account to define the brush shell surface. Such a variant of the invention makes it possible to accentuate the loading the eyelash with product by the brush of the invention.

    On peut également prévoir que la brosse de départ ait été meulée avant de subir le procédé selon l'invention, de sorte qu'elle comporte des poils longs épars, qui ne sont pas pris en compte pour définir la surface enveloppe de la brosse de départ.It can also be provided that the starting brush has been ground before undergoing the process according to the invention, so that it comprises long, scattered hairs, which are not not taken into account to define the envelope surface of the starting brush.

    L'enroulement en hélice des deux branches du fil métallique formant l'âme peut être prévu avec un pas à droite, comme cela est habituellement prévu dans la fabrication de brosses de maquillage, ou un pas à gauche, comme cela est enseigné par la demande de brevet FR-A-2701198. Pour fabriquer une brosse à pas à gauche, les branches de l'âme sont torsadées en tournant à gauche pour former des spires qui tournent en sens d'horloge autour de l'âme quand on progresse de la tige vers l'extrémité de la brosse.The helical winding of the two branches of the metallic wire forming the core can be planned with a step to the right, as is usually expected in the manufacture of makeup brushes, or step left, as taught by demand FR-A-2701198. To make a left-hand brush, the branches of the soul is twisted by turning to the left to form turns which turn in direction of clock around the core when one progresses from the rod towards the end of the brush.

    L'invention a également pour objet un dispositif de maquillage comprenant un réservoir à mascara et un organe d'application de mascara tel que décrit ci-dessus.The invention also relates to a makeup device comprising a reservoir for mascara and a mascara applicator as described above.

    En raison de sa forme particulière, lorsque la brosse passe à travers un essoreur, ses côtés sont très bien essorés, tandis que ses faces le sont moins. En particulier, les côtés et les faces sont essorés de façon non symétrique en raison de leur courbure. Cette particularité permet à l'utilisateur, en utilisant l'une ou l'autre des faces, de réaliser un maquillage variable en charge et en intensité sur toute la longueur de la paupière.Due to its special shape, when the brush passes through a wringer, its sides are very well wrung out, while its faces are less wrung out. In particular, the sides and the faces are wrung asymmetrically due to their curvature. This particularity allows the user, using one or other of the faces, to produce a variable make-up in charge and intensity over the entire length of the eyelid.

    On peut ajuster la souplesse des poils et la souplesse de l'âme de façon à favoriser ou à contrarier l'essorage de la brosse.The flexibility of the hairs and the flexibility of the core can be adjusted so as to promote or to counter the spin of the brush.

    Afin de mieux faire comprendre l'objet de l'invention, on va décrire ci-après, à titre d'exemple, plusieurs brosses répondant aux caractéristiques de cette invention.In order to better understand the object of the invention, we will describe below, by way of for example, several brushes meeting the characteristics of this invention.

    Les figures 1, 1A, 2A et 3A sont des vues en perspective de brosses pouvant être utilisées pour fabriquer une brosse selon l'invention.Figures 1, 1A, 2A and 3A are perspective views of brushes that can be used to make a brush according to the invention.

    Les figures 1B, 2B et 3B sont des vues en perspective de brosses respectivement selon 1A, 2A et 3A qui ont été tondues suivant l'étape (ii) du procédé selon l'invention.Figures 1B, 2B and 3B are perspective views of brushes respectively according to 1A, 2A and 3A which have been mowed according to step (ii) of the method according to the invention.

    Les figures 1C, 2C et 3C sont des coupes suivant les plans IC-IC, IIC-llC et IIIC-IIIC des brosses représentées respectivement sur les figures 1B, 2B et 3B.Figures 1C, 2C and 3C are sections along the IC-IC, IIC-11C and IIIC-IIIC planes of the brushes shown respectively in Figures 1B, 2B and 3B.

    Les figures 1D, 2D et 3D sont des vues en perspective de brosses selon l'invention, fabriquées suivant le procédé selon l'invention, respectivement à partir des brosses représentées sur les figures 1A, 2A et 3A.FIGS. 1D, 2D and 3D are perspective views of brushes according to the invention, manufactured according to the method according to the invention, respectively from brushes shown in Figures 1A, 2A and 3A.

    La figure 4 est une vue en coupe d'un dispositif pour le maquillage des yeux. Figure 4 is a sectional view of a device for making up the eyes.

    La brosse 100 représentée sur les figures 1 et 1A comporte une tige droite 101 définissant un axe principal X-X. A l'extrémité 101.1 de cette tige 101 est fixée, par emmanchement à force, une âme relativement flexible 102, définissant la longueur de la brosse, cette âme(que l'on a représenté sur ces figures bien qu'elle soit à l'intérieur de la brosse) allongée, formée par l'enroulement en hélice de deux branches d'un fil métallique 103 qui a été replié en U avant que les branches ne soient torsadées. L'axe de l'âme 102 est confondu avec l'axe principal X-X. Des poils 104 sont implantés radialement entre les branches du fil 103. Lorsque les branches du fil 103 sont torsadées, les poils sont serrés et maintenus entre les spires en hélice de l'âme 102. Les extrémités des poils 104 définissent la surface 105 de la brosse : c'est une surface de révolution convexe qui a la forme d'un ballon de rugby et dont les extrémités sont constituées par deux sections droites : le disque 106.a, de centre 108.a et le disque 106.b de centre 108.b.The brush 100 shown in Figures 1 and 1A has a straight rod 101 defining a main axis X-X. At the end 101.1 of this rod 101 is fixed, by press fitting, a relatively flexible core 102, defining the length of the brush, this soul (which we have represented in these figures although it is inside the brush) elongated, formed by helically winding two branches of a wire 103 which was folded into a U before the branches were twisted. The axis of the soul 102 coincides with the main axis X-X. Bristles 104 are implanted radially between the branches of the wire 103. When the branches of the wire 103 are twisted, the hairs are tightened and held between the helical turns of the core 102. The ends of the bristles 104 define the surface 105 of the brush: it is a convex surface of revolution which has the shaped like a rugby ball and the ends of which consist of two sections straight: disc 106.a, center 108.a and disc 106.b center 108.b.

    A l'aide d'une tondeuse, on découpe deux faces parallèles sensiblement planes dans la brosse de la figure 1A sur presque toute la longueur (mesurée selon l'axe X-X) de la brosse. Sur la figure 1A est représentée l'intersection (γ1) de la surface 105 de la brosse avec le plan de tonte. On obtient une brosse tondue représentée sur les figures 1B et 1C.Using a clipper, two substantially flat parallel faces are cut from the brush of FIG. 1A over almost the entire length (measured along the axis XX) of the brush. In FIG. 1A is shown the intersection (γ 1 ) of the surface 105 of the brush with the mowing plane. This gives a clipped brush shown in Figures 1B and 1C.

    Pour les éléments des figures 1B et 1C communs avec la figure 1A, les références des figures 1B et 1C sont les mêmes que celles de la figure 1A augmentées de 10.For the elements of FIGS. 1B and 1C common with FIG. 1A, the references of Figures 1B and 1C are the same as those in Figure 1A increased by 10.

    La brosse représentée sur les figures 1B et 1C comporte deux faces 119 parallèles entre elles et parallèles à l'axe X-X. Ces deux faces sont équidistantes de l'âme 112. La distance entre les deux faces est d. Les deux faces sont reliées par des bords arrondis 120. Sur la zone où ont été découpées les faces 119, les sections de la brosse suivant un plan perpendiculaire à X-X sont constituées de courbes 115c, représentées sur la figure 1C, sensiblement rectangulaires, de grande longueur D suivant l'axe de plus grande longueur Z-Z et de plus grande largeur d mesurée suivant l'axe de plus grande largeur Y-Y avec D>1,5d. Les deux faces ne s'étendent pas jusqu'aux extrémités 117a et 117b de la brosse. A ces extrémités, les sections 116a, 116b de la brosse sont circulaires. La courbe 115c est symétrique par rapport aux axes de plus grande longueur Z-Z et de plus grande largeur Y-Y.The brush shown in FIGS. 1B and 1C has two faces 119 parallel between them and parallel to the X-X axis. These two faces are equidistant from the core 112. The distance between the two faces is d. The two faces are connected by rounded edges 120. On the area where the faces 119 were cut, the sections of the following brush a plane perpendicular to X-X consist of curves 115c, represented on the Figure 1C, substantially rectangular, of great length D along the axis of plus greater length Z-Z and greater width d measured along the axis of greater width Y-Y with D> 1.5d. The two faces do not extend to the ends 117a and 117b of the brush. At these ends, the sections 116a, 116b of the brush are circular. The curve 115c is symmetrical with respect to the axes of greater length Z-Z and wider Y-Y.

    On imprime à l'âme 112, à l'aide d'un outil approprié, par exemple en la pressant longitudinalement autour d'un cylindre métallique, une première torsion dans le plan parallèle aux faces 119, entre les sections 116.a et 116.b, de telle sorte que l'âme ait une forme sensiblement en arc de cercle, puis une seconde torsion, dans le même plan, entre l'extrémité 111.1 de la tige et le centre 118.a de la section d'extrémité de la brosse, de façon à aligner le centre 118.b de l'autre extrémité de la brosse sur l'axe principal X-X comme la première extrémité 118.a.The core is printed 112, using an appropriate tool, for example by pressing it longitudinally around a metal cylinder, a first twist in the plane parallel to faces 119, between sections 116.a and 116.b, so that the core has a forms substantially in an arc, then a second twist, in the same plane, between the end 111.1 of the rod and the center 118.a of the end section of the brush, so as to align the center 118.b of the other end of the brush on the main axis X-X like the first end 118.a.

    Par cette opération on obtient une brosse 120 selon l'invention représentée sur la figure 1D. Sur cette figure, les références affectées à des éléments analogues à ceux des figures 1 B et 1 C sont celles des figures 1B et 1 C augmentées de 10.By this operation, a brush 120 according to the invention shown in the figure is obtained. 1D. In this figure, the references assigned to elements similar to those of Figures 1 B and 1 C are those of Figures 1B and 1 C increased by 10.

    La brosse de la figure 1D a sensiblement la forme d'une faucille ; l'âme 122 décrit une courbe C1, sensiblement en arc de cercle. Toutefois, ses extrémités 128.a et 128.b sont alignées sur l'axe principal X-X. La brosse comprend deux faces 129a, 129b. Ces deux faces sont reliées par des bords arrondis 120. La surface 125 de la brosse est engendrée par une série de courbes 115c, telles que représentées sur la figure 1C, évoluant le long de l'âme 122 ; ces courbes sont sensiblement rectangulaires, d'axes de plus grande longueur (Z-Z) parallèles entre eux. A ses extrémités 127a, 127b, la brosse est engendrée par des courbes circulaires.The brush of Figure 1D has substantially the shape of a sickle; the core 122 describes a curve C 1 , substantially in an arc. However, its ends 128.a and 128.b are aligned on the main axis XX. The brush has two faces 129a, 129b. These two faces are connected by rounded edges 120. The surface 125 of the brush is generated by a series of curves 115c, as shown in FIG. 1C, evolving along the core 122; these curves are substantially rectangular, with axes of greater length (ZZ) parallel to each other. At its ends 127a, 127b, the brush is generated by circular curves.

    La figure 2A se distingue de la figure 1A par le fait que la surface 205 de la brosse de départ a la forme d'un tronc de cône.FIG. 2A is distinguished from FIG. 1A by the fact that the surface 205 of the brush departure has the shape of a truncated cone.

    A l'aide d'une tondeuse, on découpe deux faces arrondies, sécantes, dans la brosse de la figure 2A sur toute la longueur (mesurée selon l'axe X-X) de la brosse. On obtient une brosse tondue représentée sur les figures 2B et 2C.Using a clipper, cut two rounded, intersecting faces from the brush. FIG. 2A over the entire length (measured along the axis X-X) of the brush. We get a mowed brush shown in Figures 2B and 2C.

    Pour les éléments des figures 2B et 2C communs avec la figure 2A, les références des figures 2B et 2C sont les mêmes que celles de la figure 2A augmentées de 10.For the elements of FIGS. 2B and 2C common with FIG. 2A, the references of Figures 2B and 2C are the same as those in Figure 2A increased by 10.

    La brosse représentée sur les figures 2B et 2C comporte deux faces 219 arrondies et sécantes. Ces deux faces sont symétriques par rapport à l'âme 212. La distance entre les sommets des deux faces est d. d est sensiblement constante d'une extrémité de la brosse à l'autre. Les deux faces sont reliées par des bords 220 se terminant par des arêtes 220a. Les sections de la brosse suivant un plan perpendiculaire à X-X sont constituées de courbes 215c, représentées sur la figure 2C, ayant sensiblement la forme d'un oeil, de grande longueur D suivant l'axe de plus grande longueur Z-Z et de plus grande largeur d mesurée suivant l'axe de plus grande largeur Y-Y. D croít depuis une première extrémité 216b jusqu'à une seconde extrémité 216a avec D>2d sur la courbe 215c représentée sur la figure 2C. Les deux faces tondues s'étendent jusqu'aux sections d'extrémités 216a et 216b de la brosse. La courbe 215c est symétrique par rapport aux axes de plus grande longueur Z-Z et de plus grande largeur Y-Y.The brush shown in FIGS. 2B and 2C has two rounded faces 219 and intersecting. These two faces are symmetrical with respect to the web 212. The distance between the vertices of the two faces is d. d is substantially constant from one end of the brush to another. The two faces are connected by edges 220 ending in edges 220a. The sections of the brush in a plane perpendicular to X-X are consisting of curves 215c, shown in Figure 2C, having substantially the shape with one eye, of great length D along the axis of greatest length Z-Z and more large width d measured along the axis of greatest width Y-Y. D has been growing for a first end 216b to a second end 216a with D> 2d on the curve 215c shown in Figure 2C. The two mowed faces extend to the sections ends 216a and 216b of the brush. Curve 215c is symmetrical with respect to axes of greater length Z-Z and greater width Y-Y.

    On imprime à l'âme 212, à l'aide d'un outil approprié, par exemple en la pressant longitudinalement autour d'un cylindre métallique, une première torsion dans le plan parallèle à l'axe Z-Z et passant par la tige 211, entre les sections 216.a et 216.b, de telle sorte que l'âme ait une forme sensiblement en arc de cercle, puis une seconde torsion, dans le même plan, entre l'extrémité 211.1 de la tige et le centre 218.a de la section d'extrémité de la brosse, de façon à aligner le centre 218.b de l'autre extrémité de la brosse sur l'axe principal X-X comme la première extrémité 218.a.The core is printed 212, using an appropriate tool, for example by pressing it longitudinally around a metal cylinder, a first twist in the plane parallel to axis Z-Z and passing through rod 211, between sections 216.a and 216.b, such so that the soul has a shape substantially in an arc, then a second twist, in the same plane, between the end 211.1 of the rod and the center 218.a of the section end of the brush, so as to align the center 218.b of the other end of the brush on the main axis X-X like the first end 218.a.

    Par cette opération on obtient une brosse 200 selon l'invention représentée sur la figure 2D. Sur cette figure, les références affectées à des éléments analogues à ceux des figures 2B et 2C sont celles des figures 2B et 2C augmentées de 10.By this operation, a brush 200 according to the invention shown in the figure is obtained. 2D. In this figure, the references assigned to elements similar to those of Figures 2B and 2C are those of Figures 2B and 2C increased by 10.

    La brosse de la figure 2D a sensiblement la forme d'une faucille; l'âme 222 décrit une courbe C2, sensiblement en arc de cercle. Toutefois, ses extrémités 228.a et 228.b sont alignées sur l'axe principal X-X. La surface 225 de la brosse comprend deux faces 229a, 229b. Ces deux faces sont reliées par deux arêtes sensiblement circulaires 230a, 230b. La surface 225 de la brosse est engendrée par une série de courbes 215c, telles que représentées sur la figure 2C, évoluant le long de l'âme 222 ; ces courbes ont sensiblement la forme d'un oeil, d'axes de plus grande longueur (Z-Z) parallèles entre eux.The brush of Figure 2D has substantially the shape of a sickle; the core 222 describes a curve C 2 , substantially in an arc. However, its ends 228.a and 228.b are aligned on the main axis XX. The surface 225 of the brush comprises two faces 229a, 229b. These two faces are connected by two substantially circular edges 230a, 230b. The surface 225 of the brush is generated by a series of curves 215c, as shown in FIG. 2C, evolving along the core 222; these curves have substantially the shape of an eye, of axes of greater length (ZZ) parallel to each other.

    Pour les éléments de la figure 3A communs avec la figure 1A, les références affectées à des éléments analogues à ceux de la figure 1A sont celles de la figure 1A augmentées de 200. For the elements of Figure 3A common with Figure 1A, the references assigned to elements similar to those of FIG. 1A are those of FIG. 1A increased of 200.

    La figure 3A se distingue de la figure 1A par le fait que l'intersection (γ3) d'une section transversale, ici la section d'extrémité 306b, de la surface 305 de la brosse, avec le plan de tonte, a la forme d'une goutte.FIG. 3A differs from FIG. 1A by the fact that the intersection (γ 3 ) of a cross section, here the end section 306b, of the surface 305 of the brush, with the cutting plane, has the shaped like a drop.

    A l'aide d'une tondeuse, on découpe deux faces arrondies, sécantes, dans la brosse de la figure 3A sur toute la longueur (mesurée selon l'axe X-X) de la brosse suivant la courbe (γ3). On obtient une brosse tondue représentée sur les figures 3B et 3C.Using a clipper, two rounded, intersecting faces are cut from the brush of FIG. 3A over the entire length (measured along the axis XX) of the brush along the curve (γ 3 ). This gives a clipped brush shown in Figures 3B and 3C.

    Pour les éléments des figures 3B et 3C communs avec la figure 3A, les références des figures 3B et 3C sont les mêmes que celles de la figure 3A augmentées de 10.For the elements of FIGS. 3B and 3C common with FIG. 3A, the references of Figures 3B and 3C are the same as those in Figure 3A increased by 10.

    La brosse représentée sur les figures 3B et 3C comporte deux faces 319 arrondies et sécantes. Ces deux faces sont symétriques par rapport au plan passant par l'âme 312 et comprenant l'axe de plus grande longueur Z-Z. La distance entre les sommets des deux faces est d. d est sensiblement constante d'une extrémité de la brosse à l'autre. Les deux faces sont reliées par des bords : 320a arrondi et 320b en arête. Les sections de la brosse suivant un plan perpendiculaire à X-X sont constituées de courbes 315c, représentées sur la figure 3C, ayant sensiblement la forme d'une goutte, de grande longueur D suivant l'axe de plus grande longueur Z-Z et de plus grande largeur d mesurée suivant l'axe de plus grande largeur Y-Y. La plus grande largeur d n'est pas centrale par rapport à la plus grande longueur D. D est constante le long de l'axe de l'âme avec D>2d sur la courbe 315c représentée sur la figure 3C. Les deux faces tondues s'étendent jusqu'aux sections d'extrémités 316a et 316b de la brosse. La courbe 315c est symétrique par rapport à l'axe de plus grande longueur Z-Z mais pas par rapport à l'axe de plus grande largeur Y-Y.The brush shown in FIGS. 3B and 3C has two rounded faces 319 and intersecting. These two faces are symmetrical with respect to the plane passing through the core 312 and including the longest axis Z-Z. The distance between the vertices of the two faces is d. d is substantially constant from one end of the brush to the other. The two faces are connected by edges: 320a rounded and 320b at the edge. The sections of the brush along a plane perpendicular to X-X consist of curves 315c, shown in Figure 3C, having substantially the shape of a drop, of large length D along the axis of greatest length Z-Z and greatest width d measured along the axis of greatest width Y-Y. The largest width d is not central with respect to the greatest length D. D is constant along the axis of the core with D> 2d on the curve 315c represented in FIG. 3C. Both sides trimmed extend to the end sections 316a and 316b of the brush. The curve 315c is symmetrical with respect to the axis of greatest length Z-Z but not by relative to the axis of greatest width Y-Y.

    On imprime à l'âme 312, à l'aide d'un outil approprié, par exemple en la pressant longitudinalement autour d'un cylindre métallique, une première torsion dans le plan parallèle à l'axe Z-Z et passant par la tige 311, entre les sections 316.a et 316.b, de telle sorte que l'âme ait une forme sensiblement en arc de cercle, puis une seconde torsion, dans le même plan, entre l'extrémité 311.1 de la tige et le centre 318.a de la section d'extrémité de la brosse, de façon à aligner le centre 318.b de l'autre extrémité de la brosse sur l'axe principal X-X comme la première extrémité 318.a.The core is printed 312, using an appropriate tool, for example by pressing it longitudinally around a metal cylinder, a first twist in the plane parallel to axis Z-Z and passing through rod 311, between sections 316.a and 316.b, such so that the soul has a shape substantially in an arc, then a second twist, in the same plane, between the end 311.1 of the rod and the center 318.a of the section end of the brush, so as to align the center 318.b of the other end of the brush on the main axis X-X like the first end 318.a.

    Par cette opération on obtient une brosse 300 selon l'invention représentée sur la figure 3D. Sur cette figure, les références affectées à des éléments analogues à ceux des figures 3B et 3C sont celles des figures 3B et 3C augmentées de 10.By this operation, a brush 300 according to the invention shown in the figure is obtained. 3D. In this figure, the references assigned to elements similar to those of Figures 3B and 3C are those of Figures 3B and 3C increased by 10.

    La brosse de la figure 3D a sensiblement la forme d'une faucille; l'âme 322 décrit une courbe C3, sensiblement en arc de cercle. Toutefois, ses extrémités 328.a et 228.b sont alignées sur l'axe principal X-X. La surface 325 de la brosse comprend deux faces 329. Ces deux faces sont reliées par une arête 330b et un bord 330a arrondi, sensiblement circulaires. La surface 325 de la brosse est engendrée par une série de courbes 315c, telles que représentées sur la figure 3C, évoluant le long de l'âme 322 ; ces courbes ont sensiblement la forme d'une goutte, d'axes de plus grande longueur (Z-Z) parallèles entre eux et parallèles au plan de courbure.The brush of Figure 3D has substantially the shape of a sickle; the core 322 describes a curve C 3 , substantially in an arc. However, its ends 328.a and 228.b are aligned on the main axis XX. The surface 325 of the brush comprises two faces 329. These two faces are connected by an edge 330b and a rounded edge 330a, substantially circular. The surface 325 of the brush is generated by a series of curves 315c, as shown in FIG. 3C, evolving along the core 322; these curves have substantially the shape of a drop, of axes of greater length (ZZ) parallel to each other and parallel to the plane of curvature.

    Dans les trois modes de réalisation de l'invention décrits ci-dessus on a employé des brosses de départ ayant la forme d'un ballon de rugby et une forme tronçonique, mais on peut également utiliser une brosse de départ ayant une forme choisie parmi : un cylindre, un double cône assemblé par les bases des deux cônes de taille identique, un poisson comme décrit par exemple dans la demande de brevet français publiée sous le numéro FR-A-2730910 , une cacahuète, un obus, une larme.In the three embodiments of the invention described above, starting brushes in the shape of a rugby ball and a truncated shape, but we can also use a starting brush having a shape chosen from: a cylinder, a double cone assembled by the bases of the two cones of identical size, a fish as described for example in the French patent application published under the number FR-A-2730910, a peanut, a shell, a tear.

    Le dispositif pour le maquillage des yeux représenté sur la figure 4 comprend un réservoir cylindrique 420, qui comporte un goulot 424, fileté, surmonté d'un joint d'étanchéité 425 et qui est rempli d'un mascara 415. Le réservoir 420 comporte dans son goulot un essoreur 421, le maintien en position de l'essoreur dans le goulot étant assuré grâce à un bourrelet 426 qui coopère avec l'épaulement séparant le goulot du réservoir 420 proprement dit. L'essoreur 421 est constitué, de façon connue, en une matière souple et élastique. Un applicateur est destiné à coopérer avec le réservoir 420. Cet applicateur est constitué d'un moyen de préhension 423 qui supporte l'organe d'application 430, comprenant une tige 422 et un organe d'application 401, identiques à ceux représentés sur les figures 1D ou 2D. Le moyen de préhension 423 a la forme d'un capuchon et comporte un filetage 423a qui coopère avec le filetage 424a du goulot du réservoir. L'obturation étanche du réservoir 420 est obtenue en vissant le moyen de préhension 423 sur le goulot 424 du réservoir muni de son joint 425.The device for making up the eyes shown in FIG. 4 comprises a cylindrical tank 420, which has a threaded neck 424, surmounted by a seal seal 425 and which is filled with a mascara 415. The reservoir 420 has in its neck of a wiper 421, maintaining the wiper in position in the neck being ensured thanks to a bead 426 which cooperates with the shoulder separating the neck from the reservoir 420 proper. The wiper 421 is made, in a known manner, of a material flexible and elastic. An applicator is intended to cooperate with the reservoir 420. This applicator consists of a gripping means 423 which supports the member application 430, comprising a rod 422 and an application member 401, identical to those shown in Figures 1D or 2D. The gripping means 423 has the form of a cap and has a thread 423a which cooperates with the thread 424a of the neck of the tank. The sealed closure of the reservoir 420 is obtained by screwing the means of gripping 423 on the neck 424 of the tank provided with its seal 425.

    Lorsque l'on extrait l'organe d'application 430 du réservoir, l'organe applicateur ayant la forme d'une brosse chargée de mascara passe à travers l'essoreur 421. Celui-ci essore les poils du dos de la brosse de façon plus importante que les poils du creux de la brosse. Les poils des côtés de la brosse sont très essorés.When the applicator member 430 is extracted from the reservoir, the applicator member having the shape of a brush loaded with mascara passes through the wringer 421. It wrings the bristles of the back of the brush more prominently than the bristles of the hollow of the brush. The bristles on the sides of the brush are very wrung out.

    A l'application sur les cils, la brosse charge les cils en produit par ses deux faces, puis elle étale le produit, allonge et recourbe le cil par ses faces de dos et de creux, elle peigne par ses côtés. Les poils des côtés étant très longs par rapport au reste des poils de la brosse, les poils du creux de la brosse ayant une forme susceptible d'épouser le contour de la paupière et le peigne étant de faible épaisseur, les cils sont très bien pris en charge au cours du peignage qui est très efficace.When applied to the eyelashes, the brush loads the eyelashes with product from both sides, then she spreads the product, lengthens and curls the eyelash by its back and hollow faces, it comb by its sides. The hairs on the sides being very long compared to the rest of the hairs of the brush, the bristles of the hollow of the brush having a shape capable of marrying the contour of the eyelid and the comb being thin, the eyelashes are very well taken in charge during combing which is very effective.

    Par rapport aux brosses globalement convexes connues de l'art antérieur, la brosse selon l'invention offre l'avantage d'être très facile à utiliser, de maquiller l'intégralité des poils de la paupière sans bavures, de permettre un maquillage très allongé, très recourbé et très séparé.Compared to the generally convex brushes known from the prior art, the brush according to the invention offers the advantage of being very easy to use, of making up all of the eyelid hairs without burrs, to allow a very elongated, very curled makeup and very separate.

    Claims (19)

    1. Brush comprising a straight wand defining a major axis (X-X); a flexible core (122; 222; 322) comprising a first end and a second end, the first end being secured to the wand; bristles inserted radially into this core, the end of the bristles defining an envelope surface (125; 225; 325) of the brush, this envelope surface comprising a first end and a second end and having, over at least part of its length, a cross section (115c; 215c; 315c) of elongate shape in the direction of an axis of greatest length (Z-Z), the brush being characterized in that the core describes a curve (C1, C2, C3) in a plane of curvature (P) and in that the axis of greatest length (Z-Z) is parallel to the plane of curvature (P).
    2. Brush according to the preceding claim, characterized in that the cross section (115.c) has at least two sides (119) in the direction of the axis of greatest length (Z-Z), these sides being more or less parallel to the axis (Z-Z).
    3. Brush according to Claim 1, characterized in that the cross section (215.c; 315c) has at least two sides (219; 319) in the direction of the axis of greatest length (Z-Z), these sides having a convex shape.
    4. Brush according to Claim 3, characterized in that the sides (319) of the cross section (315c) have two ends (320a; 320b), the width of the section (315.c) in the direction of the axis (Y-Y) perpendicular to the axis of greatest length (Z-Z) at one of these ends (320b) being substantially zero.
    5. Brush according to Claim 4, characterized in that the sides (219) of the cross section (215c) have two ends (220a), the width of the section (215.c) in the direction of the axis (Y-Y) perpendicular to the axis of greatest length (Z-Z) at these ends being substantially zero.
    6. Brush according to any one of the preceding claims, characterized in that the cross section (115.c; 215.c; 315c) has at least two sides (120; 220; 320a; 320b) in the direction of the axis (Y-Y), this axis being perpendicular to the axis of greatest length (Z-Z), these sides having a convex shape.
    7. Brush according to any one of the preceding claims, characterized in that the cross section has a maximum width (D) in the direction of the axis of greatest length (Z-Z) and a maximum width (d) in the direction of the axis (Y-Y), D and d satisfying the relationship: D > 1.5d
    8. Brush according to the preceding claim, characterized in that D and d satisfy the relationship: D > 2d
    9. Brush according to any one of the preceding claims, characterized in that its envelope surface has an elongate cross section over at least 50% of its length.
    10. Brush according to the preceding claim, characterized in that its envelope surface has an elongate section over at least 75% of its length.
    11. Brush according to any one of the preceding claims, characterized in that the cross section of the envelope surface (125) is substantially circular at the ends (127a; 127b) of this envelope surface.
    12. Brush according to any one of the preceding claims, characterized in that the curve (C1, C2; C3) is substantially in the shape of an arc of a circle.
    13. Brush according to any one of the preceding claims, characterized in that the ends (128a; 128b; 228a; 228b; 328a; 328b) of the core (122; 222; 322) are aligned with the axis (X-X).
    14. Method of manufacturing a brush according to any one of the preceding claims, the method comprising the following steps:
      (i) producing a starting brush comprising a straight wand (101; 201; 301) defining a major axis (X-X), a flexible core (102; 202; 302) comprising a first end and a second end, the first end being secured to this wand, the core being straight and aligned with the wand, bristles (104; 204; 304) being inserted radially into this core, the end of the bristles defining an envelope surface (105; 205; 305) of the starting brush,
      (ii) trimming the bristles of the starting brush in such a way that the envelope surface (115, 215; 315) of the brush over at least part of its length has a cross section (115c; 215c; 315c) of elongate shape in the direction of an axis of greatest length (Z-Z),
      (iii) giving the core a main twist in the plane parallel to the axis of greatest length (Z-Z) and passing through the wand.
    15. Method according to the preceding claim, characterized in that it comprises a fourth step:
      (iv) giving a secondary twist to that end of the core which is secured to the wand so as to align the second end (118b; 218b; 318b) of the core with the main axis (X-X).
    16. Method according to either one of Claims 14 and 15, characterized in that the envelope surface (105; 205; 305) of the starting brush is axisymmetric.
    17. Method according to any one of Claims 14 to 16, characterized in that the envelope surface (105; 205; 305) of the starting brush is chosen from: a cylinder, a part of a cone, a rugby ball, a buoy, a fish, a peanut, an obus and a teardrop.
    18. Method according to any one of Claims 13 to 16, characterized in that the surface (105; 205; 305) of the starting brush is convex.
    19. Make-up device comprising a mascara reservoir (420) and a mascara-applicator member (430), characterized in that the applicator member is one according to any one of Claims 1 to 13.
    EP97402501A 1996-11-13 1997-10-22 Brush for application of a cosmetic product and a make-up device with such a brush. Expired - Lifetime EP0842620B1 (en)

    Applications Claiming Priority (2)

    Application Number Priority Date Filing Date Title
    FR9613819A FR2755593B1 (en) 1996-11-13 1996-11-13 BRUSH FOR THE APPLICATION OF A COSMETIC PRODUCT AND MAKE-UP DEVICE COMPRISING SAME
    FR9613819 1996-11-13

    Publications (2)

    Publication Number Publication Date
    EP0842620A1 EP0842620A1 (en) 1998-05-20
    EP0842620B1 true EP0842620B1 (en) 2001-12-05

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    Family Applications (1)

    Application Number Title Priority Date Filing Date
    EP97402501A Expired - Lifetime EP0842620B1 (en) 1996-11-13 1997-10-22 Brush for application of a cosmetic product and a make-up device with such a brush.

    Country Status (9)

    Country Link
    US (1) US5934292A (en)
    EP (1) EP0842620B1 (en)
    JP (1) JPH10151023A (en)
    CN (1) CN1099856C (en)
    AR (1) AR009414A1 (en)
    CA (1) CA2218936C (en)
    DE (1) DE69708825T2 (en)
    ES (1) ES2169337T3 (en)
    FR (1) FR2755593B1 (en)

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    Also Published As

    Publication number Publication date
    FR2755593A1 (en) 1998-05-15
    ES2169337T3 (en) 2002-07-01
    CA2218936A1 (en) 1998-05-13
    JPH10151023A (en) 1998-06-09
    MX9708750A (en) 1998-09-30
    DE69708825T2 (en) 2002-04-18
    CN1099856C (en) 2003-01-29
    FR2755593B1 (en) 1999-01-08
    EP0842620A1 (en) 1998-05-20
    US5934292A (en) 1999-08-10
    CA2218936C (en) 2001-01-23
    CN1191706A (en) 1998-09-02
    AR009414A1 (en) 2000-04-12
    DE69708825D1 (en) 2002-01-17

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