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EP1374723A1 - Product applicator, especially for cosmetics, and method of manufacturing such an applicator - Google Patents

Product applicator, especially for cosmetics, and method of manufacturing such an applicator Download PDF

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Publication number
EP1374723A1
EP1374723A1 EP03291388A EP03291388A EP1374723A1 EP 1374723 A1 EP1374723 A1 EP 1374723A1 EP 03291388 A EP03291388 A EP 03291388A EP 03291388 A EP03291388 A EP 03291388A EP 1374723 A1 EP1374723 A1 EP 1374723A1
Authority
EP
European Patent Office
Prior art keywords
fibers
curved portions
support
curvature
product
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.)
Granted
Application number
EP03291388A
Other languages
German (de)
French (fr)
Other versions
EP1374723B1 (en
Inventor
Guilhem Rousselet
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
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Application filed by LOreal SA filed Critical LOreal SA
Publication of EP1374723A1 publication Critical patent/EP1374723A1/en
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Publication of EP1374723B1 publication Critical patent/EP1374723B1/en
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Classifications

    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46D—MANUFACTURE OF BRUSHES
    • A46D1/00—Bristles; Selection of materials for bristles
    • A46D1/02—Bristles details
    • A46D1/0238—Bristles with non-round cross-section
    • 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
    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46D—MANUFACTURE OF BRUSHES
    • A46D1/00—Bristles; Selection of materials for bristles

Definitions

  • the present invention relates to a device for applying a product, especially cosmetic, in particular make-up and / or care.
  • the product can be applied to the skin, nails or keratin fibers, especially hair, eyelashes or eyebrows.
  • make-ups which can be filling, natural, curling, lengthening, or which result from a mixture between these different characteristics of based.
  • patent literature is teeming with patents describing devices whose object is to produce new makeup effects or allow the application of compositions having particular rheologies.
  • devices which are distinguished in these patents are described relative to each other by the density and / or the shape of their elements of application (generally fibers), by their profile, longitudinal and / or transverse, by the nature of the material constituting the support and / or the elements application, by the treatment to which all or part of the device may be subjected application, or by any other element of the packaging unit and application of which the application device is only a constituent part (for example, the wringer).
  • patent application FR-A-2 668 905 describes a process for obtaining a mascara brush consisting in, after twisting the brush and mow according to the desired profile, to heat the end of the fibers so as to melt them, and thus create small bulges under the fibers form of balls, resulting from the shrinkage of the polymeric material. After a such treatment, the fibers remain substantially straight.
  • US-A-5,161,554 describes a mascara brush of the twisted brush type, and the fibers of which are of variable section along their axis longitudinal.
  • the fibers can be zig-zag or wavy.
  • the fibers After treatment, in a conventional manner, the fibers are placed under form of a sheet introduced between the two strands of a U-shaped wire. are then twisted relative to each other, so as to configure the fibers in the form of a helical arrangement with several turns.
  • such a curvature is obtained by subjecting all or part of the application device for moderate heating, i.e. at a temperature higher than the glass transition temperature of the polymer forming said fibers that one wishes to bend, and lower than the melting temperature of said polymer in the case of a semi-crystalline polymer.
  • the heating time is adjusted according to the material, the diameter of the fibers, so as to obtain the desired curvature, without causing retraction of the material, suitable, as described in patent application FR-A-2 668 905 mentioned above, to cause a significant shortening of the fibers and to modify the cross section, in particular, at the end.
  • the significant curvature of the fibers allows, even in the event that the density of fibers, in particular by turns in the case of a mascara brush of the type twisted brush, is important, to substantially reduce the spaces between two successive turns, and create a clutter effect, thus preventing the makeup is not done in packs.
  • the curvature of the fibers contributes to the space out relative to each other, increasing the amount of product which can be retained between the fibers of the brush.
  • the autonomy of the brush is, this fact, much better.
  • said fibers have a substantially constant curvature from the support to the corresponding free end.
  • substantially constant we hears a variation in radius of curvature of up to 15% around a value average, and preferably at most 10% around said average value.
  • the application device can also be configured under in the form of an arrangement of hairs which are substantially parallel to each other others, and extending, like a toothbrush, perpendicular to a axis of said support.
  • Such applicators are generally intended to be used in combination with a product packaged in the form of a solid bread, moisten before use.
  • the average radius of curvature of the curved portions is preferably understood between 2 mm and 40 mm. Preferably, it is between 2 and 30 mm. Of more preferably, it is less than 20 mm, and more than 3 mm. Preferably still, the radius of curvature is between 3 mm and 10 mm.
  • said fibers are made of a thermoplastic material, in particular in polyamide, or in a thermoplastic elastomer.
  • the material thermoplastic can be 100% amorphous or semi-crystalline.
  • polyamides 6 such as those sold under the brand name Tynex®.
  • the diameter of the fibers can be between 6/100 th of mm and 35/100 th of mm, and preferably between 10/100 th of mm and 25/100 th of mm.
  • the application device comprises fibers or portions of fibers that are substantially straight.
  • it comprises a first group of curved portions having a first mean radius of curvature and a second group of curved portions having a second mean radius of curvature, distinct from the first.
  • the different radii of curvature of the first and second groups can result of the use of first and second types of fibers formed from materials different, including having different glass transition temperatures.
  • the different groups of curved portions can, when mixed with each other, participate in obtaining results of particular application, by especially when it comes to makeup. They can also, when they are separate from each other, be used for different areas of the region to treat.
  • the support consists of a twisted core, formed from two strands, particularly of wire, twisted relative to each other, the fibers being fixedly held between the two twisted strands and extending radially relative to the twisted core, the device being intended for the application of product on keratin fibers, in particular the eyelashes or the eyebrows.
  • the fibers are arranged in a helical arrangement, the number of fibers per turn being between 5 and 80, and preferably between 10 and 45.
  • the helical organization of the fibers may be more or less perceptible, or even completely imperceptible, on the surface of the applicator, depending on the degree fiber curvature.
  • the cross section of the application device may be circular, or polygonal, in particular triangular, square, or pentagonal. Other forms still can be considered.
  • the twisted core can be straight or curved.
  • the twisted core has a plurality of turns which can rise from left to the right when the brush is viewed from the front in a vertical position. In this case brush is called "left".
  • the twisted core has a plurality of turns rising from the right to left when the brush is viewed from the front in a vertical position.
  • the brush is qualified as "straight".
  • the different groups of curved portions can be implemented in places separate from the support.
  • first and second groups of curved portions can be offset the along a longitudinal axis of the support.
  • they are angularly offset around the twisted core.
  • the fibers are heated to a temperature significantly lower than the melting temperature of the material which constitutes them.
  • the heating of said fibers can be carried out by convection, in particular by immersion in a heated liquid, or by contact with hot air, or by radiation, especially infrared.
  • the heating is carried out by immersion of the fibers in water heated to about 100 ° C.
  • a temperature has proved satisfactory for polyamide 6 fibers with a glass transition temperature included between 50 ° C and 60 ° C, and whose melting temperature is of the order of 185 ° C.
  • the fibers can be immersed in said liquid for a period ranging from 4 to 25 seconds, and preferably 7 to 15 seconds.
  • the packaging and application assembly may also include a wringer intended to be crossed by the application device, at least during its extraction from the container, so as to dose the quantity of product present on, and between, the fibers.
  • FIG. 1 illustrates a conventional brush 50 of the brush type, such than commonly used for eyelash or eyebrow makeup.
  • the brush 50 comprises a twisted core 51 obtained from a folded wire in a U and between the branches of which, prior to the twisting movement, introduces a layer of bristles 52.
  • the bristles 52 are driven in a helical configuration formed by a succession of more or less spread turns.
  • the bristles 52 extend radially to the support and are substantially straight or at least have a radius of curvature large (greater than 60 mm).
  • a non-stacked portion of the twisted core 51 is mounted on a rod 53.
  • the end of the rod 53 opposite the brush 50 is generally connected to a element (not shown) forming both a gripping member for the brush 50, and closure element for the container with which the brush is associated.
  • FIG. 2 shows a brush 1 of the type of that of Figure 1, but conforms to the invention.
  • brush 1 is of the "left brush” type, the turns of the twisted core 3 rising from left to right when brush 1 is viewed from the front in position vertical.
  • a non-stacked part of the twisted core 3 is fixed to the end of a rod 4.
  • the twisted core 3 of the brush is straight and extends along an axis X corresponding to the axis of the rod 4.
  • the bristles 2 of the brush unlike the bristles 52 of the brush of the figure previous, are curved over their entire length.
  • the heat treatment to which the fibers are subjected causes a curvature of the latter which is substantially constant from the support up to their free end (s).
  • FIG 11 illustrates schematically the main stages of the manufacture of a brush 1 of the type of that of the figure 2.
  • a first step 200 the hairs are introduced, in the form of a sheet, between the two strands of a wire, which are then twisted. This results in a cylindrical bottle brush 201 of about 15 mm in diameter.
  • the brush 201 is then mowed (step 202) so as to give it a profile frustoconical specific to the desired application.
  • the resulting brush 203 is with a diameter, at its widest end, of approximately 7 to 8 mm.
  • the hairs of the brush 203 are substantially straight.
  • the brush 203 is immersed for about 8 seconds in water at 100 ° C.
  • Brush 1 resulting from the process which has just been described, has turns which are barely visible, due to the clutter effect generated by the orientation curves random hairs 2.
  • the bristles are of circular section. Their diameter is of the order of 13/100 th of mm. They are made of polyamide 6.
  • the brush includes 23 to 25 bristles per turn.
  • a cross section of the brush 1 perpendicular to the X axis is, as illustrated in FIG. 3A, of circular shape.
  • the section of the brush 1 is of section square cross.
  • the section of the brush 1 is of triangular shape.
  • the cross section of the bristles 2 can be of different shapes.
  • the bristles 2 are full and of circular section.
  • the bristles 2 are of section in the shape of a four-leaf clover.
  • the bristles 2 are of triangular section.
  • the bristles 2 are of section in the form of a grain of rice.
  • the bristles 2 are hollow and of annular section.
  • the bristles 2 are of C-shaped section.
  • the brush 1 may include bristles 2 of a single type of section, or bristles of different sections, mixed.
  • Portion 5 is used for applying the product to the eyelashes.
  • Portion 6 is used for the separation of eyelashes.
  • portion 5 is used for applying the product to the eyelashes.
  • Portion 6 is used for the separation of lashes.
  • the brush 1 according to the variant of FIG. 7 differs from the brush according to the Figure 2 in that the twisted core 3 is curved, the corresponding curvature substantially at the curvature of the eyelash implantation line on the eyelid.
  • the brush 1 according to the variant of FIG. 8 differs from the brush according to the Figure 2 in that it is of the "straight brush” type, the turns of the twisted core 3 amount from right to left when brush 1 is viewed from the front in position vertical.
  • the application device 81 is configured as a brush for applying varnish to the nails. It comprises a tuft of hairs 82 stapled to the end of a rod 83 of axis X.
  • the hairs 82 are oriented substantially parallel to the X axis (angle relative to the X axis less than 45 °).
  • the end of the rod 83 opposite the tuft of bristles 82 is connected to an element 84 forming both a gripping member for the brush 81 and a closure element for the container with which the brush is associated.
  • the curvature of the bristles 82 of the brush 81 is obtained in the same way as for the curvature of the bristles of the mascara brushes of the preceding figures, simply by submerging the brush 81, for ten seconds, in water at 100 ° C.
  • the assembly 100 includes a container 101 containing a supply of cosmetic product such as mascara and an applicator 110.
  • the applicator 110 comprises an application device 1, of the brush type twisted, fixed to one end of a rod 4 of axis X.
  • the other end of the rod 4 is integral with a gripping element 7 which also constitutes a cap for closing the container 101.
  • the container 101 comprises a wiping member 106 formed here by a cylindrical sleeve, one end of which ends in an annular, flexible lip, 107.
  • the application device 1 In the mounted position of the applicator 110 on the container 101, the application device 1 is located in its entirety between the wringing lip 107 and the bottom of the container.
  • Other types of wipers can be used, for example a block of open cell foam or semi open, axially crossed by a slot or passage, the edges of which delimit are substantially contiguous in the absence of constraint.
  • the user unscrews the cap formed by the member grip 7, and extracts the applicator 110 from the container 101.
  • the application device 1 is caused to pass through the wiper member 106, so as to dose the quantity of product distributed over the teeth or over the fur.
  • the movement of extraction of the applicator is of direction substantially longitudinal to the X axis.
  • the user puts the applicator back into the container, again passing the application device 1 through the wringing member 106.

Landscapes

  • Brushes (AREA)
  • Coating Apparatus (AREA)
  • Cosmetics (AREA)
  • Closures For Containers (AREA)

Abstract

The applicator has a head (1) consisting of a support (3) with bristles (2) made from polymer fibres, at least some of which have curved portions with a radius of curvature of between 2 and 40 mm, and preferably between 3 and 10 mm. The curved portions of the bristles are located in a random arrangement relative to one another. The applicator has a head (1) consisting of a support (3) with bristles (2) made from polymer fibres, at least some of which have curved portions with a radius of curvature of between 2 and 40 mm, and preferably between 3 and 10 mm. The curved portions of the bristles are located in a random arrangement relative to one another. The bristles have a preferably thickness of 0.010 to 0.025 mm, and the applicator head can have various cross-sectional shapes, e.g. circular or polygonal, especially square or triangular. The support is of twisted wire strands and can be straight or curved.

Description

La présente invention a trait à un dispositif pour l'application d'un produit, notamment cosmétique, en particulier de maquillage et/ou de soin. Le produit peut être à appliquer sur la peau, sur les ongles ou sur les fibres kératiniques, notamment les cheveux, les cils ou les sourcils.The present invention relates to a device for applying a product, especially cosmetic, in particular make-up and / or care. The product can be applied to the skin, nails or keratin fibers, especially hair, eyelashes or eyebrows.

Dans le domaine du maquillage, les cosméticiens sont sans cesse à la recherche de nouveaux effets.In the field of make-up, cosmeticians are constantly looking for new effects.

Cela est vrai en particulier dans le domaine des mascaras, où l'on cherche à obtenir des maquillages qui peuvent être chargeants, naturels, recourbants, allongeants, ou qui résultent d'un mixte entre ces différentes caractéristiques de base.This is particularly true in the field of mascaras, where we seek to obtain make-ups which can be filling, natural, curling, lengthening, or which result from a mixture between these different characteristics of based.

La recherche de nouveaux dispositifs d'application peut également être guidée par l'apparition de nouvelles compositions de maquillage, qui, en raison de leur rhéologie, ne peuvent pas être appliquées avec des applicateurs conventionnels.The search for new application devices can also be guided by the appearance of new makeup compositions, which, due to their rheology, cannot be applied with conventional applicators.

Ainsi, la littérature brevets fourmille de brevets décrivant des dispositifs dont l'objet est de produire de nouveaux effets de maquillage ou de permettre l'application de compositions ayant des rhéologies particulières.Thus, the patent literature is teeming with patents describing devices whose object is to produce new makeup effects or allow the application of compositions having particular rheologies.

A titre d'exemples, sont décrits dans ces brevets des dispositifs qui se distinguent les uns relativement aux autres par la densité et/ou la forme de leurs éléments d'application (généralement des fibres), par leur profil, longitudinal et/ou transversal, par la nature du matériau constituant le support et/ou les éléments d'application, par le traitement auquel peut être soumis tout ou partie du dispositif d'application, ou par tout autre élément de l'ensemble de conditionnement et d'application dont le dispositif d'application n'est qu'une partie constitutive (par exemple, l'essoreur).By way of examples, devices which are distinguished in these patents are described relative to each other by the density and / or the shape of their elements of application (generally fibers), by their profile, longitudinal and / or transverse, by the nature of the material constituting the support and / or the elements application, by the treatment to which all or part of the device may be subjected application, or by any other element of the packaging unit and application of which the application device is only a constituent part (for example, the wringer).

Ainsi, de manière plus spécifique, la demande de brevet FR-A-2 668 905 décrit un procédé d'obtention d'une brosse à mascara consistant à, après torsadage de la brosse et tonte selon le profil souhaité, à chauffer le bout des fibres de manière à les faire fondre, et à créer ainsi au bout des fibres des petits renflements sous forme de boules, résultant de la rétractation de la matière polymérique. Après un tel traitement, les fibres restent sensiblement rectilignes.Thus, more specifically, patent application FR-A-2 668 905 describes a process for obtaining a mascara brush consisting in, after twisting the brush and mow according to the desired profile, to heat the end of the fibers so as to melt them, and thus create small bulges under the fibers form of balls, resulting from the shrinkage of the polymeric material. After a such treatment, the fibers remain substantially straight.

Selon un autre exemple, le brevet US-A-5 161 554 décrit une brosse à mascara de type brosse torsadée, et dont les fibres sont de section variable selon leur axe longitudinal. Les fibres peuvent être en forme de zig-zag ou ondulées. Il en résulte des fibres présentant une alternance de courbures dans un sens, puis dans l'autre, avec un rayon de courbure évolutif entre un rayon maximum et un rayon minimum au niveau de chaque inversion de courbure.According to another example, US-A-5,161,554 describes a mascara brush of the twisted brush type, and the fibers of which are of variable section along their axis longitudinal. The fibers can be zig-zag or wavy. The result fibers with alternating curvatures in one direction, then in the other, with an evolving radius of curvature between a maximum radius and a radius minimum at each inversion of curvature.

Dans ce document, sont décrits un certain nombre d'opérations, notamment pendant l'extrusion des fibres, ou après extrusion, de manière à leur conférer le profil souhaité.In this document, a number of operations are described, in particular during the extrusion of the fibers, or after extrusion, so as to give them the desired profile.

Après traitement, de manière conventionnelle, les fibres sont disposées sous forme d'une nappe introduite entre les deux brins d'un fil de fer en U. Ces derniers sont ensuite torsadés l'un relativement à l'autre, de manière à configurer les fibres sous forme d'un arrangement hélicoïdal à plusieurs spires.After treatment, in a conventional manner, the fibers are placed under form of a sheet introduced between the two strands of a U-shaped wire. are then twisted relative to each other, so as to configure the fibers in the form of a helical arrangement with several turns.

A l'expérience, on s'aperçoit que :

  • i) lorsque les déformations sont générées pendant le processus d'extrusion des fibres, du fait du processus d'extrusion lui-même, elles sont forcément à rayon de courbure minimal important ; et
  • ii) lorsque les déformations résultent d'un traitement après extrusion elles sont également de rayon de courbure minimal important, faute de quoi, leur manipulation automatisée pour les mettre sous forme d'une nappe à disposer entre les deux brins du fil de fer en U, et en vue de torsader les deux brins du fil de fer, serait des plus problématiques.
    • Experience has shown that:
  • i) when the deformations are generated during the fiber extrusion process, due to the extrusion process itself, they are necessarily with a large minimum radius of curvature; and
  • ii) when the deformations result from a treatment after extrusion, they also have a large minimum radius of curvature, otherwise, their automated manipulation to put them in the form of a sheet to be placed between the two strands of the U-shaped wire , and in order to twist the two strands of wire, would be most problematic.

    • Il est connu également de réaliser des brosses à mascara par moulage. Le moule est conçu de sorte que l'extrémité libre des éléments d'application, qui, d'une manière générale sont rectilignes, se termine par une portion en forme de fourche, ou en forme de crochet. Du fait de l'obtention de ces portions d'extrémité par moulage, leurs orientations relatives sont prédéterminées. Les résultats en termes de maquillage sont décevants. En outre, il est nécessaire d'avoir un moule par type de maquillage recherché.It is also known to make mascara brushes by molding. The mold is designed so that the free end of the application elements, which generally are straight, ends with a fork-shaped portion, or hook-shaped. Due to the obtaining of these end portions by molding, their relative orientations are predetermined. The results in terms make-up are disappointing. In addition, it is necessary to have a mold per type of makeup sought.

    Il est connu en outre, pour des brosses à mascara, de meuler ou d'abraser les extrémités libres des fibres de manière à les éclater en de multiples brins. D'un tel traitement purement mécanique, peuvent résulter des portions de fibres de forme courbe. Ces portions courbes sont toutefois strictement localisées aux extrémités des fibres. En outre, les rayons de courbure obtenus descendent difficilement en dessous de 50 mm.It is also known, for mascara brushes, to grind or abrade the free ends of the fibers so as to split them into multiple strands. Of such purely mechanical treatment, may result from portions of shaped fibers curve. These curved portions are however strictly localized at the ends fibers. In addition, the radii of curvature obtained hardly descend in below 50 mm.

    Avec de tels rayons de courbure, les effets en termes de résultat maquillage, sont à peine perceptibles.With such radii of curvature, the effects in terms of makeup result are barely noticeable.

    Aussi, est-ce un des objets de la présente demande que de réaliser un dispositif d'application, en particulier pour un produit de maquillage et/ou de soin, résolvant en tout ou partie les problèmes discutés en référence aux dispositifs connus.Also, is it one of the objects of the present application to make a device of application, in particular for a makeup and / or care product, resolving all or part of the problems discussed with reference to known devices.

    C'est en particulier un objet de l'invention que de réaliser un dispositif d'application d'un produit de maquillage et/ou de soin, constituant une solution alternative en vue de l'obtention de certains effets maquillage, ou offrant la possibilité d'obtenir des maquillages différents des maquillages obtenus avec les dispositifs conventionnels.It is in particular an object of the invention to produce an application device a make-up and / or care product, constituting an alternative solution by view of obtaining certain makeup effects, or offering the possibility of obtaining make-up different from the make-up obtained with the devices conventional.

    C'est un autre objet de l'invention que de réaliser un dispositif économique à réaliser.It is another object of the invention to produce an economical device for achieve.

    C'est encore un autre objet de l'invention que de réaliser un procédé de fabrication d'un applicateur, en particulier pour un produit de soin et/ou de maquillage, et qui soit simple et économique à mettre en oeuvre sur un outil industriel.It is yet another object of the invention to carry out a manufacturing process an applicator, in particular for a care and / or makeup product, and which is simple and economical to implement on an industrial tool.

    D'autres objets encore apparaítront dans la description détaillée qui suit. Other objects will appear in the detailed description which follows.

    Selon l'invention, ces objets sont atteints en réalisant un dispositif pour l'application d'un produit, notamment de maquillage et/ou de soin, comprenant un arrangement de fibres polymériques ayant au moins une extrémité libre, lesdites fibres étant montées fixement sur un support et présentant, au moins pour certaines, au moins une portion courbe qui :

  • i) s'étend continûment depuis le support jusqu'à une (ou leur) extrémité libre, et
  • ii) est de rayon de courbure moyen inférieur à 45 mm, lesdites portions courbes étant orientées les unes relativement aux autres de manière aléatoire.
    • According to the invention, these objects are achieved by producing a device for applying a product, in particular make-up and / or care, comprising an arrangement of polymer fibers having at least one free end, said fibers being fixedly mounted on a support and having, at least for some, at least one curved portion which:
  • i) extends continuously from the support to one (or their) free end, and
  • ii) has an average radius of curvature less than 45 mm, said curved portions being oriented relative to one another in a random manner.

    • Par "continûment", on entend sans inversion du sens de la courbure entre le support et l'extrémité libre.By "continuously" means without inverting the direction of the curvature between the support and free end.

    De préférence, on obtient une telle courbure en soumettant tout ou partie du dispositif d'application à un chauffage modéré, c'est à dire à une température supérieure à la température de transition vitreuse du polymère formant lesdits fibres que l'on souhaite recourber, et inférieure à la température de fusion dudit polymère dans le cas d'un polymère semi-cristallin.Preferably, such a curvature is obtained by subjecting all or part of the application device for moderate heating, i.e. at a temperature higher than the glass transition temperature of the polymer forming said fibers that one wishes to bend, and lower than the melting temperature of said polymer in the case of a semi-crystalline polymer.

    La durée du chauffage est ajustée en fonction du matériau, du diamètre des fibres, de manière à obtenir la courbure souhaitée, et ce sans causer de rétractation de la matière, apte, comme décrit dans la demande de brevet FR-A-2 668 905 évoquée ci-avant, à engendrer un raccourcissement sensible des fibres et à en modifier la section transversale, en particulier, en bout.The heating time is adjusted according to the material, the diameter of the fibers, so as to obtain the desired curvature, without causing retraction of the material, suitable, as described in patent application FR-A-2 668 905 mentioned above, to cause a significant shortening of the fibers and to modify the cross section, in particular, at the end.

    Au dessus de la valeur limite d'environ 45 mm, les effets, notamment en termes d'effets maquillage, peuvent, en fonction notamment de la rhéologie du produit à appliquer, être jugés insuffisants.Above the limit value of around 45 mm, the effects, especially in terms makeup effects, may, depending in particular on the rheology of the product to apply, be deemed insufficient.

    La courbure importante des fibres permet, même dans l'hypothèse où la densité de fibres, en particulier par spire dans le cas d'une brosse à mascara de type brosse torsadée, est importante, de réduire de manière substantielle les espaces entre deux spires successives, et de créer un effet de fouillis, évitant ainsi que le maquillage ne se fasse par paquets.The significant curvature of the fibers allows, even in the event that the density of fibers, in particular by turns in the case of a mascara brush of the type twisted brush, is important, to substantially reduce the spaces between two successive turns, and create a clutter effect, thus preventing the makeup is not done in packs.

    En réalité, en jouant sur le rayon de courbure des fibres, en combinaison avec d'autres paramètres tels que la densité des fibres, leur diamètre, la forme de leur section transversale, ou la forme de la brosse, il est possible de passer d'un maquillage des plus naturels à un maquillage des plus chargeants, et/ou d'obtenir plus ou moins d'allongement et/ou de recourbement.In reality, by playing on the radius of curvature of the fibers, in combination with other parameters such as the density of the fibers, their diameter, the shape of their cross section, or the shape of the brush, it is possible to switch from one from the most natural make-up to the most filling make-up, and / or to obtain more or less elongation and / or bending.

    Du fait de cette courbure importante, il est possible en outre, dans le cas d'un applicateur destiné au maquillage, d'obtenir des maquillages nouveaux, relativement aux maquillages obtenus avec des applicateurs conventionnels, et ce, à compositions de maquillage identiques.Due to this significant curvature, it is also possible, in the case of a applicator intended for make-up, to obtain new make-ups, relative to the make-up obtained with conventional applicators, and this, with identical makeup compositions.

    Dans le cas d'un applicateur de vernis à ongles ou d'une composition de soin des ongles, configuré sous forme d'un pinceau, la courbure des fibres contribue à les espacer les unes relativement aux autres, augmentant ainsi la quantité de produit qui peut être retenue entre les fibres du pinceau. L'autonomie du pinceau est, de ce fait, bien meilleure.In the case of a nail polish applicator or a care composition for nails, configured as a brush, the curvature of the fibers contributes to the space out relative to each other, increasing the amount of product which can be retained between the fibers of the brush. The autonomy of the brush is, this fact, much better.

    En outre, du fait de cette configuration particulière de la (ou des) touffe(s) de fibres d'un tel pinceau, des effets marbrés peuvent être obtenus sur l'ongle.In addition, due to this particular configuration of the tuft (s) of fibers with such a brush, marbled effects can be obtained on the nail.

    De préférence, lesdites fibres sont de courbure sensiblement constante depuis le support jusqu'à l'extrémité libre correspondante. Par "sensiblement constante", on entend une variation de rayon de courbure d'au plus 15% autour d'une valeur moyenne, et de préférence, d'au plus 10% autour de ladite valeur moyenne.Preferably, said fibers have a substantially constant curvature from the support to the corresponding free end. By "substantially constant", we hears a variation in radius of curvature of up to 15% around a value average, and preferably at most 10% around said average value.

    Selon l'invention, le dispositif d'application peut également être configuré sous forme d'un arrangement de poils sensiblement parallèles les uns relativement aux autres, et s'étendant, à la manière d'une brosse à dents, perpendiculairement à un axe dudit support. De tels applicateurs sont généralement destinés à être utilisés en combinaison avec un produit conditionné sous forme d'un pain solide, à humecter avant utilisation. According to the invention, the application device can also be configured under in the form of an arrangement of hairs which are substantially parallel to each other others, and extending, like a toothbrush, perpendicular to a axis of said support. Such applicators are generally intended to be used in combination with a product packaged in the form of a solid bread, moisten before use.

    Le rayon de courbure moyen des portions courbes est compris de préférence entre 2 mm et 40 mm. De préférence, il est compris entre 2 et 30 mm. De préférence encore, il est inférieur à 20 mm, et supérieur à 3 mm. De préférence encore, le rayon de courbure est compris entre 3 mm et 10 mm.The average radius of curvature of the curved portions is preferably understood between 2 mm and 40 mm. Preferably, it is between 2 and 30 mm. Of more preferably, it is less than 20 mm, and more than 3 mm. Preferably still, the radius of curvature is between 3 mm and 10 mm.

    Avantageusement, lesdits fibres sont réalisées en un matériau thermoplastique, notamment en polyamide, ou en un élastomère thermoplastique. Le matériau thermoplastique peut être amorphe à 100% ou semi cristallin.Advantageously, said fibers are made of a thermoplastic material, in particular in polyamide, or in a thermoplastic elastomer. The material thermoplastic can be 100% amorphous or semi-crystalline.

    A titres d'exemples, on peut citer des polyamides 6 tels que ceux commercialisés sous la marque Tynex®.By way of examples, mention may be made of polyamides 6 such as those sold under the brand name Tynex®.

    Le diamètre des fibres peut être compris entre 6/100eme de mm et 35/100eme de mm, et, de préférence, entre 10/100eme de mm et 25/100eme de mm.The diameter of the fibers can be between 6/100 th of mm and 35/100 th of mm, and preferably between 10/100 th of mm and 25/100 th of mm.

    Selon un mode de réalisation particulier, le dispositif d'application comprend des fibres ou portions de fibres sensiblement rectilignes.According to a particular embodiment, the application device comprises fibers or portions of fibers that are substantially straight.

    Alternativement, il comprend un premier groupe de portions courbes ayant un premier rayon de courbure moyen et un second groupe de portions courbes ayant un second rayon de courbure moyen, distinct du premier.Alternatively, it comprises a first group of curved portions having a first mean radius of curvature and a second group of curved portions having a second mean radius of curvature, distinct from the first.

    Les différents rayons de courbure des premier et second groupes peuvent résulter de l'utilisation de premier et second types de fibres formées de matériaux différents, ayant notamment des température de transition vitreuse différentes.The different radii of curvature of the first and second groups can result of the use of first and second types of fibers formed from materials different, including having different glass transition temperatures.

    Toutefois, de telles différences peuvent également être obtenues avec des fibres formées de matériaux identiques. Dans ce cas de figure, plusieurs possibilités existent :

  • i) les conditions de traitement thermique auxquelles sont soumises les portions courbes des deux groupes sont différentes, en terme de température ou de durée de chauffage ; ou
  • ii) les portions courbes du premier groupe sont des portions de fibres dont le diamètre et/ou la forme sont différents du diamètre et/ou de la forme de fibres dont sont issues les portions courbes du second groupe.
    • However, such differences can also be obtained with fibers formed from identical materials. In this case, several possibilities exist:
  • i) the heat treatment conditions to which the curved portions of the two groups are subjected are different, in terms of temperature or heating time; or
  • ii) the curved portions of the first group are portions of fibers whose diameter and / or shape are different from the diameter and / or of the shape of fibers from which the curved portions of the second group originate.

    • Ainsi, on peut utiliser, seuls ou en mélanges, des poils pleins ou creux, de section circulaire, triangulaire, allongée, en forme de C, ou en forme de trèfle à quatre feuilles (quadrilobe). D'autres formes encore peuvent être utilisées.Thus, one can use, alone or in mixtures, full or hollow bristles, of section circular, triangular, elongated, C-shaped, or four-leaf clover leaves (quadrilobe). Still other forms can be used.

    Les différents groupes de portions courbes peuvent, lorsqu'ils sont en mélange les uns avec les autres, participer à l'obtention de résultats d'application particulier, en particulier lorsqu'il s'agit de maquillage. Ils peuvent également, lorsqu'ils sont séparés les uns des autres, être utilisés pour des zones différentes de la région à traiter.The different groups of curved portions can, when mixed with each other, participate in obtaining results of particular application, by especially when it comes to makeup. They can also, when they are separate from each other, be used for different areas of the region to treat.

    Avantageusement, le support est constitué d'une âme torsadée, formée à partir de deux brins, notamment de fil de fer, torsadés l'un relativement à l'autre, les fibres étant maintenues fixement entre les deux brins torsadés et s'étendant radialement relativement à l'âme torsadée, le dispositif étant destiné à l'application de produit sur les fibres kératiniques, notamment les cils ou les sourcils.Advantageously, the support consists of a twisted core, formed from two strands, particularly of wire, twisted relative to each other, the fibers being fixedly held between the two twisted strands and extending radially relative to the twisted core, the device being intended for the application of product on keratin fibers, in particular the eyelashes or the eyebrows.

    Avec un dispositif d'application selon ce mode de réalisation préférentiel, chaque fibre, maintenue sensiblement en son milieu par l'âme torsadée, comprend deux portions s'étendant chacune depuis le support jusqu'à une extrémité libre correspondante. Sur un tel applicateur, pourront être présentes :

  • i) des fibres dont les deux portions sont courbes, à courbures identiques ou différentes ;
  • ii) des fibres dont une portion est courbe et dont l'autre portion est rectiligne ; et, éventuellement
  • iii) en mélange avec des fibres de l'une et/ou l'autre des catégories i) et ii), des fibres dont les deux portions sont rectilignes.
    • With an application device according to this preferred embodiment, each fiber, held substantially in its middle by the twisted core, comprises two portions each extending from the support to a corresponding free end. On such an applicator, may be present:
  • i) fibers the two portions of which are curved, with identical or different curvatures;
  • ii) fibers of which one portion is curved and the other portion of which is straight; and eventually
  • iii) mixed with fibers of one and / or the other of categories i) and ii), fibers of which the two portions are rectilinear.

    • De préférence, les fibres sont arrangées selon un arrangement hélicoïdal, le nombre de fibres par spire étant compris entre 5 et 80, et de préférence, entre 10 et 45. L'organisation hélicoïdale des fibres peut être plus ou moins perceptible, voire totalement imperceptible, à la surface de l'applicateur, en fonction du degré de courbure des fibres.Preferably, the fibers are arranged in a helical arrangement, the number of fibers per turn being between 5 and 80, and preferably between 10 and 45. The helical organization of the fibers may be more or less perceptible, or even completely imperceptible, on the surface of the applicator, depending on the degree fiber curvature.

    La section transversale du dispositif d'application peut être circulaire, ou polygonale, notamment triangulaire, carrée, ou pentagonale. D'autres formes encore peuvent être envisagées.The cross section of the application device may be circular, or polygonal, in particular triangular, square, or pentagonal. Other forms still can be considered.

    L'âme torsadée peut être rectiligne ou courbe.The twisted core can be straight or curved.

    L'âme torsadée présente une pluralité de spires pouvant monter de la gauche vers la droite lorsque la brosse est vue de face en position verticale. Dans ce cas, la brosse est qualifiée de "gauche".The twisted core has a plurality of turns which can rise from left to the right when the brush is viewed from the front in a vertical position. In this case brush is called "left".

    Alternativement, l'âme torsadée présente une pluralité de spires montant de la droite vers la gauche lorsque la brosse est vue de face en position verticale. Dans ce cas, la brosse est qualifiée de "droite".Alternatively, the twisted core has a plurality of turns rising from the right to left when the brush is viewed from the front in a vertical position. In in this case, the brush is qualified as "straight".

    Dans le cas d'un applicateur à plusieurs groupes de portions courbes de différentes courbures, ces dernières peuvent être en mélange les unes avec les autres sur le support.In the case of an applicator with several groups of curved portions of different curvatures, these can be mixed with each other others on the support.

    Alternativement, les différents groupes de portions courbes peuvent être implantés en des endroits distincts du support.Alternatively, the different groups of curved portions can be implemented in places separate from the support.

    Ainsi, les premier et second groupes de portions courbes peuvent être décalés le long d'un axe longitudinal du support.Thus, the first and second groups of curved portions can be offset the along a longitudinal axis of the support.

    Alternativement, ils sont décalés angulairement autour de l'âme torsadée.Alternatively, they are angularly offset around the twisted core.

    Selon un autre aspect de l'invention, on réalise également un procédé de fabrication d'un dispositif pour l'application d'un produit, notamment de maquillage et/ou de soin, comprenant les étapes suivantes :

  • i) disposer fixement une pluralité de fibres polymériques sur un support, et
  • ii) après fixation des fibres au support, exposer au moins une partie des fibres à une température supérieure à la température de transition vitreuse du matériau polymérique qui les constitue, pendant une durée telle :
  • a) que lesdites fibres présentent au moins une portion courbe ; et que
  • b) la longueur desdites fibres soit sensiblement inchangée.
    • According to another aspect of the invention, there is also carried out a method for manufacturing a device for applying a product, in particular make-up and / or care, comprising the following steps:
  • i) fixedly placing a plurality of polymer fibers on a support, and
  • ii) after fixing the fibers to the support, exposing at least a portion of the fibers to a temperature higher than the glass transition temperature of the polymeric material which constitutes them, for a period such as:
  • a) that said fibers have at least one curved portion; and
  • b) the length of said fibers is substantially unchanged.

    • Dans le cas d'un matériau semi-cristallin, les fibres sont chauffées à une température sensiblement inférieure à la température de fusion du matériau qui les constitue.In the case of a semi-crystalline material, the fibers are heated to a temperature significantly lower than the melting temperature of the material which constitutes them.

    Le chauffage desdites fibres peut s'effectuer par convection, notamment par immersion dans un liquide chauffé, ou par mise en contact avec de l'air chaud, ou par rayonnement, notamment infrarouge.The heating of said fibers can be carried out by convection, in particular by immersion in a heated liquid, or by contact with hot air, or by radiation, especially infrared.

    De préférence, le chauffage s'effectue par immersion des fibres dans de l'eau chauffée à environ 100° C. Une telle température s'est avérée satisfaisante pour des fibres de polyamide 6 dont la température de transition vitreuse est comprise entre 50°C et 60°C, et dont la température de fusion est de l'ordre de 185°C.Preferably, the heating is carried out by immersion of the fibers in water heated to about 100 ° C. Such a temperature has proved satisfactory for polyamide 6 fibers with a glass transition temperature included between 50 ° C and 60 ° C, and whose melting temperature is of the order of 185 ° C.

    Les fibres peuvent être immergées dans ledit liquide pendant une durée allant de 4 à 25 secondes, et de préférence, de 7 à 15 secondes.The fibers can be immersed in said liquid for a period ranging from 4 to 25 seconds, and preferably 7 to 15 seconds.

    A titre purement indicatif, pour une brosse torsadée comportant des fibres de polyamide 6 dont le diamètre est de 13/100eme de mm, la courbure maximale est obtenue après 8 secondes de chauffage dans de l'eau à 100 °C.By way of indication only, for a twisted brush comprising polyamide 6 fibers whose diameter is 13/100 th of mm, the maximum curvature is obtained after 8 seconds of heating in water at 100 ° C.

    Selon encore un autre aspect, l'invention vise un ensemble de conditionnement et d'application d'un produit, notamment cosmétique, comprenant :

  • a) un réservoir contenant le produit à appliquer ; et
  • b) un dispositif d'application selon l'invention.
    • According to yet another aspect, the invention relates to a set for packaging and applying a product, in particular cosmetic, comprising:
  • a) a reservoir containing the product to be applied; and
  • b) an application device according to the invention.

    • L'ensemble de conditionnement et d'application peut comprendre en outre un essoreur destiné à être traversé par le dispositif d'application, au moins lors de son extraction du récipient, de manière à doser la quantité de produit présent sur, et entre, les fibres.The packaging and application assembly may also include a wringer intended to be crossed by the application device, at least during its extraction from the container, so as to dose the quantity of product present on, and between, the fibers.

    L'invention consiste, mises à part les dispositions exposées ci-dessus, en un certain nombre d'autres dispositions qui seront explicitées ci-après, à propos d'exemples de réalisation non limitatifs, décrits en référence aux figures annexées, parmi lesquelles :

    • la figure 1 représente un applicateur de type brosse torsadée, conforme à la technique antérieure à la présente invention ;
    • le figure 2 représente de façon schématique un dispositif d'application selon un premier mode de réalisation de l'invention ;
    • les figures 3A-3C illustrent de façon schématique différentes sections transversales d'un dispositif d'application selon la figure 2 ;
    • les figures 4A-4F illustrent différentes sections transversales de fibres pouvant être utilisées dans un dispositif d'application selon l'invention ;
    • la figure 5 représente de façon schématique un dispositif d'application selon un second mode de réalisation de l'invention ;
    • la figure 6 représente de façon schématique un dispositif d'application selon un troisième mode de réalisation de l'invention ;
    • la figure 7 représente de façon schématique un dispositif d'application selon un quatrième mode de réalisation de l'invention ;
    • la figure 8 représente de façon schématique un dispositif d'application selon un cinquième mode de réalisation de l'invention ;
    • la figure 9 représente de façon schématique un dispositif d'application selon un sixième mode de réalisation de l'invention ;
    • la figure 10 représente de façon schématique un ensemble de conditionnement et d'application utilisant un dispositif d'application selon l'invention ; et
    • la figure 11 représente de façon schématique les différentes étapes du procédé de fabrication selon un mode de réalisation de l'invention.
    The invention consists, apart from the arrangements set out above, of a certain number of other arrangements which will be explained below, with reference to nonlimiting exemplary embodiments, described with reference to the appended figures, among which:
    • FIG. 1 represents an applicator of the twisted brush type, in accordance with the technique prior to the present invention;
    • FIG. 2 schematically represents an application device according to a first embodiment of the invention;
    • Figures 3A-3C schematically illustrate different cross sections of an application device according to Figure 2;
    • FIGS. 4A-4F illustrate different cross sections of fibers which can be used in an application device according to the invention;
    • FIG. 5 schematically represents an application device according to a second embodiment of the invention;
    • FIG. 6 schematically represents an application device according to a third embodiment of the invention;
    • FIG. 7 schematically represents an application device according to a fourth embodiment of the invention;
    • FIG. 8 schematically represents an application device according to a fifth embodiment of the invention;
    • FIG. 9 schematically represents an application device according to a sixth embodiment of the invention;
    • FIG. 10 schematically represents a packaging and application assembly using an application device according to the invention; and
    • FIG. 11 schematically represents the different stages of the manufacturing process according to an embodiment of the invention.

    La figure 1 illustre une brosse conventionnelle 50 de type goupillon, telle qu'utilisée couramment pour le maquillage des cils ou des sourcils. FIG. 1 illustrates a conventional brush 50 of the brush type, such than commonly used for eyelash or eyebrow makeup.

    La brosse 50 comprend une âme torsadée 51 obtenue à partir d'un fil de fer replié en U et entre les branches duquel, préalablement au mouvement de torsadage, on introduit une nappe de poils 52. En réponse au mouvement de torsadage, les poils 52 sont entraínés dans une configuration hélicoïdale formée d'une succession de spires plus ou moins écartées. Les poils 52 s'étendent radialement au support et sont sensiblement rectilignes ou du moins, présentent un rayon de courbure important (supérieur à 60 mm).The brush 50 comprises a twisted core 51 obtained from a folded wire in a U and between the branches of which, prior to the twisting movement, introduces a layer of bristles 52. In response to the twisting movement, the bristles 52 are driven in a helical configuration formed by a succession of more or less spread turns. The bristles 52 extend radially to the support and are substantially straight or at least have a radius of curvature large (greater than 60 mm).

    Une portion non empoilée de l'âme torsadée 51 est montée sur une tige 53. L'extrémité de la tige 53 opposée à la brosse 50 est reliée généralement à un élément (non représenté) formant à la fois organe de préhension pour la brosse 50, et élément d'obturation pour le récipient auquel est associée la brosse.A non-stacked portion of the twisted core 51 is mounted on a rod 53. The end of the rod 53 opposite the brush 50 is generally connected to a element (not shown) forming both a gripping member for the brush 50, and closure element for the container with which the brush is associated.

    La figure 2 représente une brosse 1 du type de celle de la figure 1, mais conforme à l'invention.2 shows a brush 1 of the type of that of Figure 1, but conforms to the invention.

    Selon ce mode de réalisation, et de la même manière que celle 50 de la figure 1, la brosse 1 est du type "brosse gauche", les spires de l'âme torsadée 3 montant de la gauche vers la droite lorsque la brosse 1 est vue de face en position verticale.According to this embodiment, and in the same way as that 50 of FIG. 1, brush 1 is of the "left brush" type, the turns of the twisted core 3 rising from left to right when brush 1 is viewed from the front in position vertical.

    De la même manière que pour la brosse de la figure 1, une partie non empoilée de l'âme torsadée 3 est fixée à l'extrémité d'une tige 4. L'âme torsadée 3 de la brosse est rectiligne et s'étend selon un axe X correspondant à l'axe de la tige 4.In the same way as for the brush of FIG. 1, a non-stacked part of the twisted core 3 is fixed to the end of a rod 4. The twisted core 3 of the brush is straight and extends along an axis X corresponding to the axis of the rod 4.

    Les poils 2 de la brosse, à la différence des poils 52 de la brosse de la figure précédente, sont courbes sur toute leur longueur.The bristles 2 of the brush, unlike the bristles 52 of the brush of the figure previous, are curved over their entire length.

    Leur courbure moyenne, mesurée à l'aide d'un projecteur de profil avec un grossissement de 10, est de l'ordre de 3 à 10 mm. Le projecteur de profil utilisé est un projecteur de profil vendu sous la référence commerciale H562 par la Société HAUSER®. Their average curvature, measured using a profile projector with a magnification of 10, is of the order of 3 to 10 mm. The profile projector used is a profile projector sold under the commercial reference H562 by the Company HAUSER®.

    Bien que les courbures des fibres les unes relativement aux autres soient d'orientation aléatoire, on a observé que, dans un exemple de mise en oeuvre préférentielle, le traitement thermique auquel sont soumises les fibres cause une courbure de ces dernières qui est sensiblement constante depuis le support jusqu'à leur(s) extrémité(s) libre(s).Although the curvatures of the fibers relative to each other are of random orientation, it has been observed that, in an example of implementation preferential, the heat treatment to which the fibers are subjected causes a curvature of the latter which is substantially constant from the support up to their free end (s).

    La figure 11, à laquelle il est maintenant fait référence, illustre schématiquement les principales étapes de la fabrication d'une brosse 1 du type de celle de la figure 2.Figure 11, to which reference is now made, illustrates schematically the main stages of the manufacture of a brush 1 of the type of that of the figure 2.

    Dans une première étape, 200, les poils sont introduits, sous forme d'une nappe, entre les deux brins d'un fil de fer, lesquels sont ensuite torsadés. Il en résulte un goupillon cylindrique 201 d'environ 15 mm de diamètre.In a first step, 200, the hairs are introduced, in the form of a sheet, between the two strands of a wire, which are then twisted. This results in a cylindrical bottle brush 201 of about 15 mm in diameter.

    Le goupillon 201 est ensuite tondu (étape 202) de manière à lui conférer un profil tronconique propre à l'application recherchée. La brosse qui en résulte 203 est d'un diamètre, à son extrémité la plus large, d'environ 7 à 8 mm. Les poils de la brosse 203 sont sensiblement rectilignes.The brush 201 is then mowed (step 202) so as to give it a profile frustoconical specific to the desired application. The resulting brush 203 is with a diameter, at its widest end, of approximately 7 to 8 mm. The hairs of the brush 203 are substantially straight.

    Lors de l'étape suivante 204, la brosse 203 est immergée pendant environ 8 secondes dans de l'eau à 100° C.In the next step 204, the brush 203 is immersed for about 8 seconds in water at 100 ° C.

    Il en résulte une conformation du matériau polymérique, laquelle conformation cause une courbure sensible des fibres dont le rayon moyen est de l'ordre de 3 à 10 mm.This results in a conformation of the polymeric material, which conformation causes a significant curvature of the fibers whose average radius is of the order of 3 to 10 mm.

    La brosse 1, issue du procédé qui vient d'être décrit, présente des spires qui sont très peu visibles, du fait de l'effet de fouillis généré par les courbures d'orientations aléatoires de ses poils 2.Brush 1, resulting from the process which has just been described, has turns which are barely visible, due to the clutter effect generated by the orientation curves random hairs 2.

    Selon un mode de réalisation particulier, les poils sont de section circulaire. Leur diamètre est de l'ordre de 13/100eme de mm. Ils sont réalisés en polyamide 6.According to a particular embodiment, the bristles are of circular section. Their diameter is of the order of 13/100 th of mm. They are made of polyamide 6.

    La brosse comprend 23 à 25 poils par spire. The brush includes 23 to 25 bristles per turn.

    Une section transversale de la brosse 1 perpendiculairement à l'axe X est, comme illustré à la figure 3A, de forme circulaire.A cross section of the brush 1 perpendicular to the X axis is, as illustrated in FIG. 3A, of circular shape.

    Selon une variante illustrée à la figure 3B, la section de la brosse 1 est de section transversale carrée.According to a variant illustrated in FIG. 3B, the section of the brush 1 is of section square cross.

    Selon une autre variante illustrée à la figure 3C, la section de la brosse 1 est de forme triangulaire.According to another variant illustrated in FIG. 3C, the section of the brush 1 is of triangular shape.

    La section transversale des poils 2 peut être de différentes formes.The cross section of the bristles 2 can be of different shapes.

    A la figure 4A, les poils 2 sont pleins et de section circulaire.In FIG. 4A, the bristles 2 are full and of circular section.

    A la figure 4B, les poils 2 sont de section en forme de trèfle à quatre feuilles.In FIG. 4B, the bristles 2 are of section in the shape of a four-leaf clover.

    A la figure 4C, les poils 2 sont de section triangulaire.In FIG. 4C, the bristles 2 are of triangular section.

    A la figure 4D, les poils 2 sont de section en forme de grain de riz.In FIG. 4D, the bristles 2 are of section in the form of a grain of rice.

    A la figure 4E, les poils 2 sont creux et de section annulaire.In FIG. 4E, the bristles 2 are hollow and of annular section.

    A la figure 4F, les poils 2 sont de section en forme de C.In FIG. 4F, the bristles 2 are of C-shaped section.

    La brosse 1 peut comporter des poils 2 d'un seul type de section, ou des poils de différentes sections, en mélange.The brush 1 may include bristles 2 of a single type of section, or bristles of different sections, mixed.

    Dans la variante de la figure 5, seule la partie de la brosse 1 située d'un même côté de l'âme torsadée 3 à fait l'objet du traitement thermique de l'étape 204 de la figure 11.In the variant of Figure 5, only the part of the brush 1 located in the same side of the twisted core 3 was subjected to the heat treatment of step 204 of the figure 11.

    Il en résulte une brosse 1 qui, sur une portion 5 correspondant à 180° autour de l'âme torsadée 3 présente des portions de poils rectilignes, et qui sur le reste 6, présente des portions de poils courbes 2. Les portions 5 et 6 s'étendent chacune sur toute la longueur de la brosse 1This results in a brush 1 which, on a portion 5 corresponding to 180 ° around the twisted core 3 has portions of rectilinear bristles, and which on the rest 6, has curved bristle portions 2. The portions 5 and 6 each extend along the entire length of the brush 1

    La portion 5 est utilisée pour l'application du produit sur les cils. La portion 6 est utilisée pour la séparation des cils.Portion 5 is used for applying the product to the eyelashes. Portion 6 is used for the separation of eyelashes.

    Dans la variante de la figure 6, seule la moitié avant de la brosse 1, située à l'opposé de la tige 4, à fait l'objet du traitement thermique de l'étape 204 de la figure 11.In the variant of FIG. 6, only the front half of the brush 1, located at the opposite of rod 4, was subjected to the heat treatment of step 204 of the figure 11.

    Il en résulte une brosse 1 qui sur une première portion axiale 5, s'étendant sur sensiblement la moitié de la longueur de la brosse 1, présente des poils 2 rectilignes. Sur l'autre moitié axiale 6, les poils 2 sont courbes.This results in a brush 1 which on a first axial portion 5, extending over substantially half the length of the brush 1, has bristles 2 rectilinear. On the other axial half 6, the bristles 2 are curved.

    Comme pour le mode de réalisation précédent, la portion 5 est utilisée pour l'application du produit sur les cils. La portion 6 est utilisée pour la séparation des cils.As for the previous embodiment, the portion 5 is used for applying the product to the eyelashes. Portion 6 is used for the separation of lashes.

    La brosse 1 selon la variante de la figure 7 se distingue de la brosse selon la figure 2 en ce que l'âme torsadée 3 est courbe, la courbure correspondant sensiblement à la courbure de la ligne d'implantation des cils sur la paupière.The brush 1 according to the variant of FIG. 7 differs from the brush according to the Figure 2 in that the twisted core 3 is curved, the corresponding curvature substantially at the curvature of the eyelash implantation line on the eyelid.

    La brosse 1 selon la variante de la figure 8 se distingue de la brosse selon la figure 2 en ce qu'elle est du type "brosse droite", les spires de l'âme torsadée 3 montant de la droite vers la gauche lorsque la brosse 1 est vue de face en position verticale.The brush 1 according to the variant of FIG. 8 differs from the brush according to the Figure 2 in that it is of the "straight brush" type, the turns of the twisted core 3 amount from right to left when brush 1 is viewed from the front in position vertical.

    A nouveau, on obtient un maquillage différent du maquillage obtenu avec la brosse de la figure 2.Again, a makeup is obtained which is different from the makeup obtained with the brush of figure 2.

    Dans le mode de réalisation de la figure 9, le dispositif d'application 81 est configuré sous forme d'un pinceau destiné à l'application de vernis sur les ongles. Il comprend une touffe de poils 82 agrafée au bout d'une tige 83 d'axe X. Les poils 82 sont orientés de façon sensiblement parallèle à l'axe X (angle relativement à l'axe X inférieur à 45°).In the embodiment of FIG. 9, the application device 81 is configured as a brush for applying varnish to the nails. It comprises a tuft of hairs 82 stapled to the end of a rod 83 of axis X. The hairs 82 are oriented substantially parallel to the X axis (angle relative to the X axis less than 45 °).

    L'extrémité de la tige 83 opposée à la touffe de poils 82 est reliée à un élément 84 formant à la fois organe de préhension pour le pinceau 81, et élément d'obturation pour le récipient auquel est associé le pinceau.The end of the rod 83 opposite the tuft of bristles 82 is connected to an element 84 forming both a gripping member for the brush 81 and a closure element for the container with which the brush is associated.

    La courbure des poils 82 du pinceau 81 est obtenue de la même manière que pour la courbure des poils des brosses à mascara des figures précédentes, simplement en immergeant le pinceau 81, pendant une dizaine de secondes, dans de l'eau à 100 °C.The curvature of the bristles 82 of the brush 81 is obtained in the same way as for the curvature of the bristles of the mascara brushes of the preceding figures, simply by submerging the brush 81, for ten seconds, in water at 100 ° C.

    En raison de la courbure des poils 82, la rétention en produit du pinceau est plus importante que dans le cas de poils rectilignes. L'autonomie du pinceau s'en trouve améliorée d'autant.Due to the curvature of the bristles 82, the product retention of the brush is more important than in the case of straight hair. The autonomy of the brush finds improved by that much.

    A la figure 10, est représenté un ensemble de conditionnement et d'application 100, équipé d'un dispositif d'application 1 du type de ceux décrits précédemment en référence aux figures 2 à 8. L'ensemble 100 comporte un récipient 101 contenant une réserve de produit cosmétique tel que du mascara et un applicateur 110. L'applicateur 110 comprend un dispositif d'application 1, du type brosse torsadée, fixé à une extrémité d'une tige 4 d'axe X. L'autre extrémité de la tige 4 est solidaire d'un élément de préhension 7 qui constitue également un capuchon de fermeture du récipient 101. Le récipient 101 comporte un organe d'essorage 106 constitué ici par un manchon cylindrique dont une extrémité se termine par une lèvre annulaire, souple, 107. En position montée de l'applicateur 110 sur le récipient 101, le dispositif d'application 1 se trouve dans son intégralité entre la lèvre d'essorage 107 et le fond du récipient. D'autres types d'organes d'essorage peuvent être utilisés, par exemple un bloc de mousse à cellules ouvertes ou semi ouvertes, traversé axialement par une fente ou un passage, dont les bords qui la délimitent sont sensiblement jointifs en l'absence de contrainte.In Figure 10, is shown a set of packaging and application 100, fitted with an application device 1 of the type described above with reference to Figures 2 to 8. The assembly 100 includes a container 101 containing a supply of cosmetic product such as mascara and an applicator 110. The applicator 110 comprises an application device 1, of the brush type twisted, fixed to one end of a rod 4 of axis X. The other end of the rod 4 is integral with a gripping element 7 which also constitutes a cap for closing the container 101. The container 101 comprises a wiping member 106 formed here by a cylindrical sleeve, one end of which ends in an annular, flexible lip, 107. In the mounted position of the applicator 110 on the container 101, the application device 1 is located in its entirety between the wringing lip 107 and the bottom of the container. Other types of wipers can be used, for example a block of open cell foam or semi open, axially crossed by a slot or passage, the edges of which delimit are substantially contiguous in the absence of constraint.

    En vue d'utiliser l'applicateur, l'utilisatrice dévisse le capuchon formé par l'organe de préhension 7, et extrait l'applicateur 110 du récipient 101. Ce faisant, le dispositif d'application 1 est amené à passer au travers de l'organe d'essorage 106, de manière à doser la quantité de produit répartie sur les dents ou sur les poils. Le mouvement d'extraction de l'applicateur est de direction sensiblement longitudinale à l'axe X. Après usage, l'utilisatrice remet l'applicateur dans le récipient, en faisant à nouveau passer le dispositif d'application 1 au travers de l'organe d'essorage 106.In order to use the applicator, the user unscrews the cap formed by the member grip 7, and extracts the applicator 110 from the container 101. In doing so, the application device 1 is caused to pass through the wiper member 106, so as to dose the quantity of product distributed over the teeth or over the fur. The movement of extraction of the applicator is of direction substantially longitudinal to the X axis. After use, the user puts the applicator back into the container, again passing the application device 1 through the wringing member 106.

    Dans la description détaillée qui précède, il a été fait référence à des modes de réalisation préférés de l'invention. Il est évident que des variantes peuvent y être apportées sans s'écarter de l'esprit de l'invention telle que revendiquée ci-après.In the foregoing detailed description, reference has been made to modes of preferred embodiments of the invention. Obviously there may be variations made without departing from the spirit of the invention as claimed below.

    Claims (30)

    Dispositif (1, 81) pour l'application d'un produit, notamment de maquillage et/ou de soin, comprenant un arrangement de fibres polymériques (2, 82) à au moins une extrémité libre, lesdites fibres étant montées fixement sur un support (3, 83) et présentant, au moins pour certaines, au moins une portion courbe qui : i) s'étend continûment depuis le support jusqu'à une (ou leur) extrémité libre , et ii) est de rayon de courbure moyen inférieur à 45 mm,
    iesdites portions courbes étant orientées les unes relativement aux autres de manière aléatoire.         Device (1, 81) for applying a product, in particular make-up and / or care product, comprising an arrangement of polymer fibers (2, 82) at at least one free end, said fibers being fixedly mounted on a support (3, 83) and having, at least for some, at least one curved portion which: i) extends continuously from the support to one (or their) free end, and ii) has an average radius of curvature less than 45 mm,
    said curved portions being oriented relative to one another in a random manner.     Dispositif selon la revendication 1 caractérisé en ce que lesdites portions courbes sont de courbure sensiblement constante depuis le support jusqu'à l'extrémité libre correspondante.Device according to claim 1 characterized in that said curved portions are of substantially constant curvature from the support to the corresponding free end. Dispositif (1, 81) selon la revendication 1 ou 2 caractérisé en ce que le rayon de courbure moyen desdites portions courbes est compris entre 2 mm et 40 mm.Device (1, 81) according to claim 1 or 2 characterized in that the mean radius of curvature of said curved portions is between 2 mm and 40 mm. Dispositif (1, 81) selon la revendication 3 caractérisé en ce que le rayon de courbure moyen desdits portions courbes est compris entre 2 et 30 mm.Device (1, 81) according to claim 3 characterized in that the mean radius of curvature of said curved portions is between 2 and 30 mm. Dispositif (1, 81) selon la revendication 4 caractérisé en ce que le rayon de courbure moyen desdites portions courbes est compris entre 3 et 20 mm, et de préférence, entre 3 mm et 10 mm.Device (1, 81) according to claim 4 characterized in that the mean radius of curvature of said curved portions is between 3 and 20 mm, and preferably between 3 mm and 10 mm. Dispositif (1, 81) selon l'une quelconque des revendications 1 à 5 caractérisé en ce que lesdits fibres sont réalisées en un matériau thermoplastique, notamment en polyamide, ou en un élastomère thermoplastique.Device (1, 81) according to any one of Claims 1 to 5, characterized in that the said fibers are made of a thermoplastic material, in particular of polyamide, or of a thermoplastic elastomer. Dispositif (1, 81) selon l'une quelconque des revendications précédentes caractérisé en ce que le diamètre des fibres est compris entre 6/100eme de mm et 35/100eme de mm, et, de préférence, entre 10/100eme de mm et 25/100eme de mm. Device (1, 81) according to any preceding claim characterized in that the fiber diameter is between 6 / 100th mm and 35 hundredths of a millimeter, and preferably between 10 hundredths of a millimeter and 25/100 th of mm. Dispositif (1, 81) selon l'une quelconque des revendications qui précèdent caractérisé en ce qu'il comprend un premier groupe (6) de portions courbes , et un second groupe (5) de fibres ou de portions de fibres sensiblement rectilignes.Device (1, 81) according to any one of the preceding claims, characterized in that it comprises a first group (6) of curved portions, and a second group (5) of fibers or of substantially rectilinear fiber portions. Dispositif (1, 81) selon l'une quelconque des revendications 1 à 7 caractérisé en ce qu'il comprend un premier groupe de portions courbes ayant un premier rayon de courbure moyen et un second groupe de portions courbes ayant un second rayon de courbure moyen, distinct du premier.Device (1, 81) according to any one of Claims 1 to 7, characterized in that it comprises a first group of curved portions having a first mean radius of curvature and a second group of curved portions having a second mean radius of curvature , separate from the first. Dispositif (1, 81) selon la revendication 8 ou 9 caractérisé en ce que les premier et second groupes de portions courbes sont issus de fibres formées de matériaux différents, ayant notamment des températures de transition vitreuse différentes.Device (1, 81) according to claim 8 or 9 characterized in that the first and second groups of curved portions come from fibers formed from different materials, in particular having different glass transition temperatures. Dispositif (1, 81) selon la revendication 8 ou 9 caractérisé en ce que les premier et second groupes de portions courbes sont issus de fibres formées de matériaux identiques.Device (1, 81) according to claim 8 or 9 characterized in that the first and second groups of curved portions come from fibers formed from identical materials. Dispositif (1, 81) selon l'une quelconque des revendications 1 à 11 caractérisé en ce que les fibres (2) sont orientées transversalement à un axe longitudinal X du support.Device (1, 81) according to any one of claims 1 to 11 characterized in that the fibers (2) are oriented transversely to a longitudinal axis X of the support. Dispositif (1, 81) selon la revendication 12 caractérisé en ce que le support est constitué d'une âme torsadée (3), formée à partir de deux brins, notamment de fil de fer, torsadés l'un relativement à l'autre, les fibres (2) étant maintenues fixement entre les deux brins torsadés et s'étendant radialement relativement à l'âme torsadée (3), le dispositif étant destiné à l'application de produit sur les fibres kératiniques, notamment les cils ou les sourcils.Device (1, 81) according to claim 12 characterized in that the support consists of a twisted core (3), formed from two strands, in particular of iron wire, twisted relative to one another, the fibers (2) being fixedly held between the two twisted strands and extending radially relative to the twisted core (3), the device being intended for applying the product to keratin fibers, in particular the eyelashes or the eyebrows. Dispositif (1, 81) selon la revendication 13 caractérisé en ce que les fibres (2) sont arrangées selon un arrangement hélicoïdal, le nombre de fibres par spire étant compris entre 5 et 80, et de préférence, entre 10 et 45. Device (1, 81) according to claim 13 characterized in that the fibers (2) are arranged in a helical arrangement, the number of fibers per turn being between 5 and 80, and preferably between 10 and 45. Dispositif (1, 81) selon la revendication 13 ou 14 caractérisé en ce qu'une section transversale du dispositif d'application (1) est circulaire, ou polygonale, notamment triangulaire, carrée, ou pentagonale.Device (1, 81) according to claim 13 or 14 characterized in that a cross section of the application device (1) is circular, or polygonal, in particular triangular, square, or pentagonal. Dispositif (1, 81) selon l'une quelconque des revendications 13 à 15 caractérisé en ce que l'âme torsadée (3) est rectiligne.Device (1, 81) according to any one of claims 13 to 15 characterized in that the twisted core (3) is rectilinear. Dispositif (1, 81) selon l'une quelconque des revendications 13 à 15 caractérisé en ce que l'âme torsadée (3) est courbe.Device (1, 81) according to any one of claims 13 to 15 characterized in that the twisted core (3) is curved. Dispositif (1, 81) selon l'une quelconque des revendications 13 à 17 caractérisé en ce l'âme torsadée (3) présente une pluralité de spires montant de la gauche vers la droite lorsque le dispositif (1) est vu de face en position verticale.Device (1, 81) according to any one of Claims 13 to 17, characterized in that the twisted core (3) has a plurality of turns rising from left to right when the device (1) is seen from the front in position vertical. Dispositif (1, 81) selon l'une quelconque des revendications 13 à 17 caractérisé en ce l'âme torsadée (3) présente une pluralité de spires montant de la droite vers la gauche lorsque le dispositif (1) est vu de face en position verticale.Device (1, 81) according to any one of claims 13 to 17 characterized in that the twisted core (3) has a plurality of turns rising from right to left when the device (1) is seen from the front in position vertical. Dispositif (1, 81) selon l'une quelconque des revendications 13 à 19 et selon l'une quelconque des revendications 8 à 11 caractérisé en ce que les portions courbes du premier groupe sont en mélange sur le support avec les portions courbes du second groupe.Device (1, 81) according to any one of Claims 13 to 19 and according to any one of Claims 8 to 11 characterized in that the curved portions of the first group are mixed on the support with the curved portions of the second group . Dispositif (1, 81) selon l'une quelconque des revendications 13 à 19 et selon l'une quelconque des revendications 8 à 11 caractérisé en ce que les premier et second groupes (5, 6) sont séparés.Device (1, 81) according to any one of claims 13 to 19 and according to any one of claims 8 to 11 characterized in that the first and second groups (5, 6) are separate. Dispositif (1, 81) selon la revendication 21 caractérisé en ce que les premier et second groupes (5, 6) sont décalés le long d'un axe longitudinal du support.Device (1, 81) according to claim 21 characterized in that the first and second groups (5, 6) are offset along a longitudinal axis of the support. Dispositif (1, 81) selon la revendication 21 caractérisé en ce que les premier et second groupes (5, 6) sont décalés angulairement autour de l'âme torsadée. Device (1, 81) according to claim 21 characterized in that the first and second groups (5, 6) are angularly offset around the twisted core. Dispositif (1, 81) selon l'une quelconque des revendications 1 à 11 caractérisé en ce que les fibres (82) sont orientées sensiblement parallèlement à un axe longitudinal X du support.Device (1, 81) according to any one of claims 1 to 11 characterized in that the fibers (82) are oriented substantially parallel to a longitudinal axis X of the support. Procédé de fabrication d'un dispositif (1, 81) pour l'application d'un produit, notamment de maquillage et/ou de soin, comprenant les étapes suivantes : i) disposer fixement une pluralité de fibres polymériques (2, 82) sur un support (3, 83), et ii) après fixation des fibres au support, exposer au moins une partie des fibres (2, 82) à une température supérieure à la température de transition vitreuse du matériau polymérique qui les constitue, pendant une durée telle : a) que lesdites fibres (2, 82) présentent au moins une portion courbe ; et que b) la longueur desdites fibres (2, 82) soit sensiblement inchangée. Method for manufacturing a device (1, 81) for applying a product, in particular make-up and / or care, comprising the following steps: i) fixedly placing a plurality of polymer fibers (2, 82) on a support (3, 83), and ii) after fixing the fibers to the support, exposing at least a portion of the fibers (2, 82) to a temperature higher than the glass transition temperature of the polymeric material which constitutes them, for a period such as: a) that said fibers (2, 82) have at least one curved portion; and b) the length of said fibers (2, 82) is substantially unchanged. Procédé selon la revendication 25 caractérisé en ce que le chauffage desdites fibres (2, 82) s'effectue par convection, notamment par immersion dans un liquide chauffé, ou par mise en contact avec de l'air chaud, ou par rayonnement, notamment infrarouge.A method according to claim 25 characterized in that the heating of said fibers (2, 82) is carried out by convection, in particular by immersion in a heated liquid, or by contacting with hot air, or by radiation, in particular infrared . Procédé selon la revendication 26 caractérisé en ce que le chauffage s'effectue par immersion des fibres dans de l'eau chauffée à environ 100° C.A method according to claim 26 characterized in that the heating is carried out by immersion of the fibers in water heated to about 100 ° C. Procédé selon la revendication 27 caractérisé en ce que les fibres (2, 82) sont immergées dans ledit liquide pendant une durée allant de 4 à 25 secondes, et de préférence, de 7 à 15 secondes.A method according to claim 27 characterized in that the fibers (2,82) are immersed in said liquid for a period ranging from 4 to 25 seconds, and preferably from 7 to 15 seconds. Ensemble (100) de conditionnement et d'application d'un produit, notamment cosmétique, comprenant : a) un réservoir (101) contenant le produit à appliquer ; et b) un dispositif d'application (1, 81) selon l'une quelconque des revendications 1 à 24. Set (100) for packaging and applying a product, in particular a cosmetic, comprising: a) a reservoir (101) containing the product to be applied; and b) an application device (1, 81) according to any one of claims 1 to 24. Ensemble (100) selon la revendication 29 caractérisé en ce que le produit est un produit de maquillage et/ou de soin des fibres kératiniques, notamment des cils ou des sourcils.Assembly (100) according to claim 29 characterized in that the product is a product for making up and / or caring for keratin fibers, in particular the eyelashes or the eyebrows.
    EP03291388A 2002-06-20 2003-06-11 Product applicator, especially for cosmetics, and method of manufacturing such an applicator Revoked EP1374723B1 (en)

    Applications Claiming Priority (2)

    Application Number Priority Date Filing Date Title
    FR0207640 2002-06-20
    FR0207640A FR2841108B1 (en) 2002-06-20 2002-06-20 PRODUCT APPLICATOR, ESPECIALLY COSMETIC, AND METHOD FOR MANUFACTURING SUCH AN APPLICATOR

    Publications (2)

    Publication Number Publication Date
    EP1374723A1 true EP1374723A1 (en) 2004-01-02
    EP1374723B1 EP1374723B1 (en) 2007-10-03

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    EP03291388A Revoked EP1374723B1 (en) 2002-06-20 2003-06-11 Product applicator, especially for cosmetics, and method of manufacturing such an applicator

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    EP (1) EP1374723B1 (en)
    JP (1) JP4296394B2 (en)
    CN (1) CN1235530C (en)
    AT (1) ATE374543T1 (en)
    BR (1) BR0302237A (en)
    DE (1) DE60316626T2 (en)
    ES (1) ES2294249T3 (en)
    FR (1) FR2841108B1 (en)

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    CN102014691A (en) * 2008-05-06 2011-04-13 Elc管理有限责任公司 Cosmetic applicator assembly
    US7996947B2 (en) 2005-06-15 2011-08-16 L'oreal Brush and a packaging and applicator device including such a brush

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    FR2853528B1 (en) * 2003-04-11 2008-08-29 Oreal COSMETIC COMPOSITION COMPRISING AN AMORPHOUS FILMOGENIC POLYMER AND HAVING A PARTICULAR THERMAL PROFILE
    JP2009201818A (en) * 2008-02-28 2009-09-10 Tokyo Parts Kk Liquid applicator
    EP2533665A1 (en) * 2010-02-13 2012-12-19 The Procter & Gamble Company Package for applying a personal care product
    US8308383B2 (en) * 2010-03-26 2012-11-13 Elc Management, Llc Heated mascara applicator and suitable compositions
    CN102669930A (en) * 2011-03-17 2012-09-19 苏州洽兴塑胶有限公司 Novel lash curler

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    FR2668905A1 (en) 1990-11-13 1992-05-15 Oreal BRUSH FOR THE APPLICATION OF A COSMETIC PRODUCT IN PARTICULAR TO EYELASHES OR HAIR, AND METHOD FOR OBTAINING SUCH A BRUSH.
    US5357647A (en) * 1992-02-11 1994-10-25 L'oreal Brush for the application of nail varnish or a similar product
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    CN102014691A (en) * 2008-05-06 2011-04-13 Elc管理有限责任公司 Cosmetic applicator assembly

    Also Published As

    Publication number Publication date
    BR0302237A (en) 2004-09-08
    JP2004024871A (en) 2004-01-29
    CN1235530C (en) 2006-01-11
    DE60316626T2 (en) 2008-07-17
    ATE374543T1 (en) 2007-10-15
    ES2294249T3 (en) 2008-04-01
    CN1473528A (en) 2004-02-11
    FR2841108B1 (en) 2004-07-30
    JP4296394B2 (en) 2009-07-15
    DE60316626D1 (en) 2007-11-15
    FR2841108A1 (en) 2003-12-26
    EP1374723B1 (en) 2007-10-03

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