EP1070462B1 - Applicator for liquid, pasty or powdered products comprising twisted bristles and package provided therewith - Google Patents

Applicator for liquid, pasty or powdered products comprising twisted bristles and package provided therewith Download PDF

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Publication number
EP1070462B1
EP1070462B1 EP00401918A EP00401918A EP1070462B1 EP 1070462 B1 EP1070462 B1 EP 1070462B1 EP 00401918 A EP00401918 A EP 00401918A EP 00401918 A EP00401918 A EP 00401918A EP 1070462 B1 EP1070462 B1 EP 1070462B1
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EP
European Patent Office
Prior art keywords
bristles
applicator
section
cross
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.)
Expired - Lifetime
Application number
EP00401918A
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German (de)
French (fr)
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EP1070462A1 (en
Inventor
Jean-Louis H. Gueret
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LOreal SA
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LOreal SA
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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
    • A45—HAND OR TRAVELLING ARTICLES
    • A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
    • A45D34/00—Containers or accessories specially adapted for handling liquid toiletry or cosmetic substances, e.g. perfumes
    • A45D34/04—Appliances specially adapted for applying liquid, e.g. using roller or ball
    • A45D34/042—Appliances specially adapted for applying liquid, e.g. using roller or ball using a brush or the like
    • A45D34/045—Appliances specially adapted for applying liquid, e.g. using roller or ball using a brush or the like connected to the cap of the container
    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46D—MANUFACTURE OF BRUSHES
    • A46D1/00—Bristles; Selection of materials for bristles
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00—Formation of filaments, threads, or the like
    • D01D5/253—Formation of filaments, threads, or the like with a non-circular cross section; Spinnerette packs therefor
    • 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 an application device provided with a plurality of bristles, for the application of a liquid to pasty or powdery consistency product, especially cosmetic or dermatological, on a surface such as the skin and its integuments, as well as an application set containing said product and equipped of such an application device.
  • the assembly targeted by the present invention is of the type comprising a reservoir containing the product and provided with an open end to which is attached, removable manner, a plug acting as a gripping element.
  • the plug is secured to an applicator member, generally via of a rod, so that the application member, in the closed position of the assembly, plunges continuously into said product.
  • the reservoir is intended, in particular to contain a makeup product or a dermatological product, and more particularly a mascara, a lipstick liquid, an eyeliner, a "blush” type powder or a nail polish, or a hair or dermatological treatment product.
  • a dose of this product is taken using such an applicator, and applied to the surface to be treated.
  • an applicator in the form of a mascara brush consisting of bristles each having on the surface at least one straight capillary groove extending rectilinearly over their entire length.
  • the capillary grooves constitute mascara reserve sites, allowing the application, a quick and effective transfer of mascara on the eyelashes, with a view to homogeneous makeup.
  • a mascara applicator for eyelashes having a profile handle substantially flat, and carrying an application member, said application member being composed of a plurality of bristles, implanted on a first end of handle, in an arrangement perpendicular to a plane passing through the handle.
  • the hairs may have a cross section (or cross section) cruciform, or semicircular shape or an "S",.
  • S semicircular shape
  • the document WO 97/10374 describes a process for manufacturing fibers twisted non-circular section, obtained by twisting around their axis central from a monofilament of non-cylindrical section of revolution.
  • This document refers to oval or polygonal section fibers or mono-filaments having a core provided with at least one helically extending rib around of the filament core. Such fibers are twisted after extrusion.
  • This document describes the use of these fibers for different kinds of brushes abrasive or cleaning, or for toothbrushes, hairbrushes, as well as for the application of cosmetics.
  • the object of the invention is to provide an applicator having, in particular after spin, a large supply of product.
  • the plaintiff discovered that, by the combination of hairs having a helical profile levogyre and bristles with a dextrorotatory helical profile could be obtained an applicator having a product autonomy substantially greater than the autonomy of a conventional applicator of the same type.
  • bristles having a helical profile “Levorotatory” means hair with a surface that forms at least one pattern progressing helically about a longitudinal axis of said bristles, with a direction of rotation opposite to the direction of rotation of the hands of a watch, said helical pattern being viewed from the axis of said bristles.
  • bristles having a helical profile "dextrorotatory” mean bristles whose surface forms at least one helically advancing pattern about a longitudinal axis of said bristles, with a direction of rotation identical to sense of rotation of the hands of a clock, said helical pattern being seen from the axis of said bristles.
  • the invention also aims at a controlled application of the product, irrespective of the zone of the bristles constituting the applicator member, placed in contact with the support treat.
  • Such an application is suitable, in particular, for the makeup of the eyelashes or eyebrows, lips, skin or nails, or to a hair treatment or dermatology.
  • the object of the invention is also to provide an applicator which remains simple and economical manufacturing, and practical use. Otherwise, when the product to be applied is relatively fluid, the object of the invention is to better control the flow velocity of the product during application.
  • another object of the invention consists of a brush of mascara with more mascara-charged hairs than a conventional brush, while being able to give a very regular makeup eyelashes.
  • a mascara brush matches the shape of all the eyelashes of an eyelid.
  • a brush allows a cladding more homogeneous and complete of the entire surface of each eyelash. So when the user applies the brush on the eyelashes, it charges the base of the eyelashes in mascara over the entire width of the eyelid. Then, turning the brush around its central axis, it successively releases the mascara loaded into the profiles of bristles over the entire surface of each eyelash, while painting and separating them.
  • Such a brush makes it possible to obtain a makeup that is both loaded, regular, lengthening and curling.
  • Another object of the invention is a brush for the application of a varnish on the nails and having controlled flow properties, while by presenting a very important product retention capacity.
  • all or part of the hairs of said first and / or second groups has a cross section having at least one edge progressing helically around a longitudinal axis of said bristles.
  • the cross-section may be of polygonal shape, in particular square, triangular or rectangular.
  • all or part of the hairs of said first and / or second groups has a cross-section having at least one recessed portion progressing helically around a longitudinal axis of said bristles.
  • the cross section may be cruciform in shape; trilobe; tetralobe; oval hollow; hollow cylindrical; hollow rectangular; polygonal, polygonal hollow; in the form of "8", "C", “S”, “E”, “F”, "H”, "I”, "L”, “N”, “W”, “V”, “T”, “Y”; of star shape or crescent shape.
  • the recessed portion is formed on the surface of the fur. It is possible, also, that the recessed portion is formed inside hairs.
  • all or part of the hairs of said first and / or second groups can have a cross-section having at least one progressing rib of helically around a longitudinal axis of said bristles.
  • the proportion of the number of hairs of the first group in relation to the number of hairs of the second group can vary between 2% and 98%.
  • the application member comprises at least one tuft consisting of said bristles, the bristles being oriented substantially in parallel, one end of the tuft being attached to the gripping element by through a rod.
  • the application organ is formed by a single tuft of hair, it is possible to obtain a particularly suitable application device the application of nail polish, such as a nail polish brush.
  • a said applicator member may also be shaped as a "blush" brush, allowing the application of a powder on the face or brush eyeliner.
  • the application member is solidary of a free end of a support, said applicator member being disposed in a plane of said support and oriented transversely to a longitudinal axis of the support.
  • said bristles are oriented, in a manner substantially radial on the applicator member, with respect to a central core.
  • the application device can be used as a brush of mascara or as a hair dye applicator on the hair.
  • such a core is formed by the winding of two branches of a wire so as to tighten the bristles between the rolled branches of blade.
  • the soul defines an axis coinciding with the axis of the application device.
  • the application device may have variable external shapes, so its profile, formed by the ends of the bristles, can be adjusted to the needs, according to the nature of the product to be applied and the morphology of the support. This profile can be obtained, for example by mowing hair with a mower.
  • the device application may comprise a mixture of hairs of a first length and hair of a second length, greater than the first.
  • bristles of the application devices covered by the invention can be of any type: with tapered or rounded ends, shaped like fork or pinhead, or have undergone all kinds of known treatments by the skilled person. These hairs can be wavy in a plane or shaped spiral stretched.
  • section of the bristles it can be registered, advantageously, in a circle with a diameter of between about 6/100 th of mm and about 30/100 th of mm.
  • the length of the bristles can be between about 2 mm and about 25 mm.
  • the length of a hair is defined by the distance between its two free ends.
  • the bristles may be made, for example, of polyethylene, polypropylene, ethylene / propylene copolymer, of polyamide, of polyester, of polyvinyl, teflon, polyethylene terephthalate or elastomer thermoplastic.
  • the helicoidal profile of the bristles has a pitch between 1 mm and 20 mm, and preferably between 1.5 mm and 10 mm, or between 2 mm and 9 mm.
  • the groove (rib) has a depth (height) so that the ratio between the depth (height) of the groove (rib) and the diameter of the circle in which the sections of the bristles are written is between 1/10 and 9/10.
  • the depth of the groove can be between 2/100 th of mm and 8/100 th of mm.
  • the invention also relates to an application set comprising a container intended to contain the product to be applied, capable of being taken with the aid of a application device as defined above.
  • a wiper member in order to ensure a correct dosage of the product and its homogeneous distribution on the application organ, in some cases a wiper member may be provided, advantageously situated in the vicinity of the open end of the tank.
  • a wiper member is intended to dose the quantity of product taken by the application body, and to distribute it regular.
  • a wiper member is made of a material elastomer, possibly made of foam, and has a passage adapted to be traversed by the applicator member and, if appropriate, by a portion of a rod connecting the applicator member to the gripping member.
  • Said passage of the organ de-spinning may comprise at least one squeezing lip, open or contiguous. In particular when the application member is carried by a flat shank, this passage may be in the form of at least one slot extending over a portion substantial section of the wiper member.
  • the applicator 3 comprises a cap 3a capable of being fixed by screwing on the neck 21 of the reservoir and serving as a gripping element.
  • the collar 21 has an external thread 22, able to cooperate with a thread complementary 3b made on the lower portion of the inner surface of the cap 3a.
  • the plug 3a has a generally elongated cylindrical shape, allowing easy handling.
  • the cap 3a is provided with a central rod 5 emerging from the plug 3a. This rod 5 has a lower end 5a on which is fixed, for example by gluing or casing, an application member 4.
  • the neck 21 of the bottle has a free circular edge 23 defining an opening 10.
  • a wring member 8 formed of a material elastically deformable.
  • the wiper member is in the form of a glove finger whose bottom is turned towards the tank 2. The bottom is open, to form a circular spin lip, suitable for the extraction of the applicator 6 out of the tank, first squeeze the stem, then remove all excess of product, on the organ of application. In storage position, the organ spin is crossed by the rod 5.
  • the applicator member 4 shown in FIG. 1 is a brush for applying mascara to the eyelashes, comprising an elongated core 4a formed by twisting two branches of a wire which has been folded into a U. 4a core is fixed by force fitting into the end 5a of the rod 5.
  • a multitude of bristles 9 is implanted radially between the son of the core 4a. When the branches of the wire are twisted, the bristles are tightened and held between the helical turns of the core 4a.
  • the magnifying glass A shows two types of triangular and square section hairs, the triangular section hair having a levorotatory helical profile P 7 and the square section hairs having a dextrorotatory helical profile R 20 .
  • Soul 4a can be central. In this case, it defines an axis coinciding with the axis X of the brush. It can also be eccentric with respect to the circle, in which hairs are inscribed.
  • the bristles 9, made of synthetic fibers and optionally flocked, are chosen from the hairs previously defined, and illustrated, in a nonlimiting manner, in FIGS. 4 to 25.
  • the brush 4 can have a mixture of bristles of different types (different diameters, shapes, sections, elasticities, materials).
  • the brush may have any known external shape, obtained for example in cutting the ends of the hairs 9 with a lawn mower.
  • the brush according to the invention can be heavily loaded with mascara.
  • the base of the eyelashes itself loads strongly with mascara.
  • the eyelashes continue to be in contact with the brush over their entire length and continue to load while curving.
  • the hairs start to comb the lashes.
  • eyelashes are supported by the hairs in an area of the helical profile, of variable orientation depending on the degree of interpenetration of the eyelashes in the brush.
  • the product is distributed over all the circumference and along the length of each eyelash. In other words, when the make-up operation, the micro-reservoirs that constitute the throats change position relative to the eyelash to be treated, ensuring autonomy significantly improved, as well as a homogeneous coating of the eyelash.
  • each eyelash is loaded homogeneously, as well along its entire length only on its entire periphery. There is no difference in makeup between the eyelashes end of the eyelid and those in the middle. Eyelashes are perfectly separated from each other, elongated and bent.
  • FIG 2 one can see a set of application generally designated by reference 101, having a reservoir 102 having a longitudinal axis X symmetry, and an applicator 106 provided with a grip sleeve 103.
  • the reservoir 102 advantageously made of glass, contains a liquid product V or viscous to apply, which can be for example, a varnish composition to nails.
  • the reservoir 102 comprises a neck 121 defining an opening 110.
  • neck 121 has a thread 122, adapted to cooperate with a thread complementary practice inside the sleeve 103.
  • the sleeve 103 also comprises an application member 104 which, in the case, is formed of a brush, consisting of a tuft of hairs 109 substantially parallel, fixed to the free end 105a of a rod 105. The other end of the rod is secured to the sleeve 103.
  • These hairs 109 consist of a mixture of laevorotatory and dextrorotatory hairs, such as previously defined.
  • the hairs are more particularly chosen by the hairs shown in Figures 4 to 25.
  • the brush remains well charged and has a good power of retention of the varnish, even after several passages of spin, without training of drops.
  • the nail polish is deposited with a speed flow rate both reduced, and substantially constant.
  • the layer of varnish obtained is more regular, and the drying of the varnish takes place significantly faster.
  • a mascara brush 206 which differs from that represented in FIG. 1 by the fact that its rod 205 is substantially flat. She has at its free end 205a a width close to that of a set 204 of hairs 209, formed in the plane of the rod 205, substantially perpendicular to an axis of the applicator 206.
  • the bristles 209 used are of the same type than those described with reference to Figures 1 and 2.
  • the other end of the rod 205 is fixed in a gripping sleeve 203.
  • the mascara brush 206 is part of a make-up set 201 comprising a reservoir 202 containing a product M, surmounted by a wiper element 222.
  • the wiper element is provided with a neck 210 on which can be fixed the sleeve 203.
  • the wiper member further comprises a shoulder 223, on which is mounted a squeezing member 208.
  • the organ of spin is formed by an elastomer or foam membrane, having a slot 211, able to be crossed, when removing the applicator 206, by at least a portion of the rod 205 and by the assembly 204 of the bristles 209.
  • the implantation plan of the bristles 209 can be inclined with respect to the passing plane by the rod 205.
  • the brush loaded with mascara passes through the wiper 211. This squeezes the outer face of the hair, the helicoidal profiles of the hairs holding a large reserve of product.
  • the spin is carried out "Random", that is, the distribution of the product in the helical profiles is such as micro-product reserves are present on each hair at a different level. These micro-reserves are able to ensure a very homogeneous product on the support to be treated.
  • Figures 4 to 25 illustrate particularly preferred hair configurations for producing the applicators 6, 106, 206 described above.
  • Each of these figures represents a pair of hairs of the same section in a lévogyre configuration and dextrogyra. It is understood that any type of levorotatory hair can be mixed with any type of dextrorotary hair.
  • Ribs or ridges The helical grooves are indicated by the reference N, the helical grooves being indicated by the reference G.
  • Figure 4 shows a perspective view of two bristles whose section S 4 has the shape of a "T".
  • Figure 5 shows a perspective view of two bristles whose section S 5 has the shape of an "I".
  • Figure 6 shows a perspective view of two bristles whose section S 6 has the shape of a "Y".
  • Figure 7 shows a perspective view of two bristles whose section S 7 has the shape of a triangle.
  • Figure 8 shows a perspective view of two bristles whose section S 8 has the shape of a "C".
  • Figure 9 shows a perspective view of two bristles whose section S 9 has the shape of an "L".
  • Figure 10 shows a perspective view of two bristles whose section S 10 has the shape of an "H".
  • Figure 11 shows a perspective view of two bristles whose section S 11 has the shape of a "W".
  • Figure 12 shows a perspective view of two bristles whose section S 12 has the shape of an "E".
  • Figure 13 shows a perspective view of two bristles whose section S 13 has the shape of a crescent.
  • Figure 14 shows a perspective view of two bristles whose section S 14 has a hollow oval shape.
  • Figure 15 shows a perspective view of two bristles whose section S 15 has a hollow rectangular shape.
  • Figure 16 shows a perspective view of two bristles whose section S 16 has the shape of an "S".
  • FIG. 17 shows a perspective view of two bristles whose section S 17 has the shape of a square with ridges N.
  • Figure 18 shows a perspective view of two bristles whose section S 18 has the shape of a flattened rectangle.
  • Figure 19 shows a perspective view of two bristles whose section S 19 has a tetratobe shape.
  • Figure 20 shows a perspective view of two bristles whose section S 20 has the shape of a square.
  • Figure 21 shows a perspective view of two bristles whose section S 21 has the shape of an "X".
  • FIG. 22 shows a perspective view of two bristles whose section S 22 has the shape of a circle provided with a cord N.
  • FIG. 23 shows a perspective view of two bristles whose section S 23 is in the form of a circle provided with two opposite N-beads.
  • Figure 24 shows a perspective view of two bristles whose section S 24 has the shape of a "8".
  • Figure 25 shows a perspective view of two bristles whose section S 25 has the shape of a star.
  • bristles with a helical profile can be obtained by extrusion of a material thermoplastic through a nozzle having a suitable profile, and then twisted by twisting hot, right or left around their axis, according to the pitch and twist direction of the desired helical profile.
  • the section of the bristles above is in a circle whose diameter is between 6/100 th mm and 30/100 th mm.
  • PA6 PA6 / 6, PA11, PA6 / 10, PA6 / 12
  • polyester polyethylene
  • polypropylene polypropylene
  • ethylene / propylene copolymer polyvinyl chloride
  • teflon polyethylene terephthalate or thermoplastic elastomer.
  • agents promoting their sliding such as graphite, bisulphide molybdenum or teflon.
  • the bristles used according to the present invention can be obtained by a process similar to that described in WO 97/10374 to which it was made reference previously.
  • the applicators of the present invention may comprise a hair mixture twisted levorotatory and dextrorotatory of different types, as defined previously. These hairs can be mixed, also with non-hair twisted of any type, known in the state of the art.
  • non-cylindrical section hairs with a levogyre helical profile and dextrorotor, twisted along their axis can significantly increase the product retention, especially in interstices formed between fur.
  • mixture of helical profile hair may comprise, in in addition, a quantity of non-twisted hairs, of section well known in the art prior.
  • non-twisted hairs can be solid or hollow, for example hollow cylindrical.

Description

L'invention concerne un dispositif d'application, pourvu d'une pluralité de poils, pour l'application d'un produit de consistance liquide à pâteuse ou pulvérulente, notamment cosmétique ou dermatologique, sur une surface telle que la peau et ses phanères, ainsi qu'un ensemble d'application contenant ledit produit et équipé d'un tel dispositif d'application.The invention relates to an application device provided with a plurality of bristles, for the application of a liquid to pasty or powdery consistency product, especially cosmetic or dermatological, on a surface such as the skin and its integuments, as well as an application set containing said product and equipped of such an application device.

L'ensemble visé par la présente invention est du type comprenant un réservoir renfermant le produit et pourvu d'une extrémité ouverte sur laquelle est fixé, de manière amovible, un bouchon faisant office d'élément de préhension. Le bouchon est solidaire d'un organe d'application, généralement par l'intermédiaire d'une tige, de sorte que l'organe d'application, en position fermée de l'ensemble, plonge en permanence dans ledit produit.The assembly targeted by the present invention is of the type comprising a reservoir containing the product and provided with an open end to which is attached, removable manner, a plug acting as a gripping element. The plug is secured to an applicator member, generally via of a rod, so that the application member, in the closed position of the assembly, plunges continuously into said product.

Le réservoir est destiné, notamment à contenir un produit de maquillage ou un produit dermatologique, et plus particulièrement un mascara, un rouge à lèvres liquide, un eye-liner, une poudre du type « blush » ou un vernis à ongles, ou bien un produit de traitement capillaire ou dermatologique. Une dose de ce produit est prélevée à l'aide d'un tel applicateur, et appliquée sur la surface à traiter.The reservoir is intended, in particular to contain a makeup product or a dermatological product, and more particularly a mascara, a lipstick liquid, an eyeliner, a "blush" type powder or a nail polish, or a hair or dermatological treatment product. A dose of this product is taken using such an applicator, and applied to the surface to be treated.

De nombreux applicateurs de ce type ont été proposés dans le passé, dans le but d'appliquer du mascara sur les cils, du vernis sur les ongles, de la poudre sur les joues ou de la teinture sur les cheveux.Many applicators of this type have been proposed in the past for the purpose to apply mascara on the eyelashes, polish on the nails, powder on the cheeks or dye on the hair.

Ainsi, on connaít par le document FR-A-2 607 372, au nom de la demanderesse, un applicateur sous forme d'une brosse de mascara, constituée de poils présentant chacun, en surface, au moins une rainure capillaire rectiligne s'étendant de manière rectiligne sur toute leur longueur. Les rainures capillaires constituent des emplacements de réserves de mascara, permettant à l'application, un transfert rapide et efficace du mascara sur les cils, en vue d'un maquillage homogène.Thus, it is known from document FR-A-2 607 372, in the name of the applicant, an applicator in the form of a mascara brush, consisting of bristles each having on the surface at least one straight capillary groove extending rectilinearly over their entire length. The capillary grooves constitute mascara reserve sites, allowing the application, a quick and effective transfer of mascara on the eyelashes, with a view to homogeneous makeup.

Par le document FR-A-2 759 872, également au nom de la demanderesse, on connaít un applicateur de mascara pour les cils, comportant un manche de profil sensiblement plat, et portant un organe d'application, ledit organe d'application étant constitué d'une pluralité de poils, implantés sur une première extrémité du manche, selon un arrangement perpendiculaire à un plan passant par le manche. Les poils peuvent présenter une section droite (ou section transversale) cruciforme, ou de forme en demi-cercle ou un « S »,. Ainsi, les poils présentent en surface une ou respectivement deux gorges droites.By document FR-A-2 759 872, also in the name of the applicant, know a mascara applicator for eyelashes, having a profile handle substantially flat, and carrying an application member, said application member being composed of a plurality of bristles, implanted on a first end of handle, in an arrangement perpendicular to a plane passing through the handle. The hairs may have a cross section (or cross section) cruciform, or semicircular shape or an "S",. Thus, the hairs present in surface one or respectively two straight grooves.

En outre, par le document FR-A-2 687 055, également au nom de la demanderesse, on connaít un applicateur de vernis à ongles présentant une touffe composée de deux types de poils, lesquels poils peuvent présenter au moins une rainure capillaire longitudinale.In addition, by document FR-A-2 687 055, also in the name of applicant, we know a nail polish applicator with a tuft composed of two types of hair, which hair may present at less a longitudinal capillary groove.

Par ailleurs, le document WO 97/10374 décrit un procédé de fabrication de fibres torsadées de section non circulaire, obtenues par torsion autour de leur axe central à partir d'un mono-filament de section non cylindrique de révolution. Ce document cite des fibres de section ovale ou polygonale ou des mono-filaments présentant un noyau pourvu d'au moins une nervure s'étendant en hélice autour du noyau du filament. De telles fibres sont torsadées après extrusion. Ce document décrit l'utilisation de ces fibres pour différentes sortes de brosses abrasives ou de nettoyage, ou bien pour les brosses à dents, à cheveux, ainsi que pour l'application de produits cosmétiques.Furthermore, the document WO 97/10374 describes a process for manufacturing fibers twisted non-circular section, obtained by twisting around their axis central from a monofilament of non-cylindrical section of revolution. This document refers to oval or polygonal section fibers or mono-filaments having a core provided with at least one helically extending rib around of the filament core. Such fibers are twisted after extrusion. This document describes the use of these fibers for different kinds of brushes abrasive or cleaning, or for toothbrushes, hairbrushes, as well as for the application of cosmetics.

Bien que ces applicateurs de l'art antérieur donnent des résultats globalement satisfaisants, il est apparu souhaitable de disposer d'un applicateur permettant d'obtenir un maquillage à la fois très chargé et très homogène, dont l'autonomie est supérieure à celle des applicateurs connus. En effet, les applicateurs cités ci-dessus peuvent présenter l'inconvénient de perdre une bonne partie de leur charge en produit, notamment lorsque l'organe d'application est soumis à une opération d'essorage préalable à l'application. Cet effet est d'autant plus sensible que les gorges ou rainures capillaires des poils sont raclées tout le long lors de cette opération d'essorage.Although these applicators of the prior art give results globally satisfactory, it appeared desirable to have an applicator to obtain a makeup both very loaded and very homogeneous, whose autonomy is superior to that of known applicators. Indeed, the applicators mentioned above may have the disadvantage of losing a good deal of their product load, in particular when the application body is subject to a spinning operation prior to application. This effect is even more sensitive that the grooves or hair grooves of the hairs are scraped all the way through this spinning operation.

Aussi, l'invention a pour but de fournir un applicateur disposant, notamment après essorage, d'une réserve importante de produit. En effet, la demanderesse a découvert que, par la combinaison de poils présentant un profil hélicoïdal lévogyre et de poils présentant un profil hélicoïdal dextrogyre, on pouvait obtenir un applicateur ayant une autonomie en produit sensiblement supérieure à l'autonomie d'un applicateur classique du même type.Also, the object of the invention is to provide an applicator having, in particular after spin, a large supply of product. Indeed, the plaintiff discovered that, by the combination of hairs having a helical profile levogyre and bristles with a dextrorotatory helical profile could be obtained an applicator having a product autonomy substantially greater than the autonomy of a conventional applicator of the same type.

Au sens de la présente demande, des poils présentant un profil hélicoïdal « lévogyre », s'entendent de poils dont la surface forme au moins un motif progressant de façon hélicoïdale autour d'un axe longitudinal desdits poils, avec un sens de rotation opposé au sens de rotation des aiguilles d'une montre, ledit motif hélicoïdal étant vu depuis l'axe desdits poils.For the purposes of the present application, bristles having a helical profile "Levorotatory" means hair with a surface that forms at least one pattern progressing helically about a longitudinal axis of said bristles, with a direction of rotation opposite to the direction of rotation of the hands of a watch, said helical pattern being viewed from the axis of said bristles.

De même, des poils présentant un profil hélicoïdal « dextrogyre », s'entendent de poils dont la surface forme au moins un motif progressant de façon hélicoïdale autour d'un axe longitudinal desdits poils, avec un sens de rotation identique au sens de rotation des aiguilles d'une montre, ledit motif hélicoïdal étant vu depuis l'axe desdits poils.Similarly, bristles having a helical profile "dextrorotatory", mean bristles whose surface forms at least one helically advancing pattern about a longitudinal axis of said bristles, with a direction of rotation identical to sense of rotation of the hands of a clock, said helical pattern being seen from the axis of said bristles.

L'invention vise, en outre, une application contrôlée du produit, quelle que soit la zone des poils constituant l'organe d'application, mise en contact avec le support à traiter. Une telle application est adaptée, notamment, au maquillage des cils ou sourcils, des lèvres, de la peau ou des ongles, ou à un traitement capillaire ou dermatologique.The invention also aims at a controlled application of the product, irrespective of the zone of the bristles constituting the applicator member, placed in contact with the support treat. Such an application is suitable, in particular, for the makeup of the eyelashes or eyebrows, lips, skin or nails, or to a hair treatment or dermatology.

L'invention a pour but, également, de fournir un applicateur qui reste d'une fabrication simple et économique, et d'une utilisation pratique. Par ailleurs, lorsque le produit à appliquer est relativement fluide, l'invention a pour but de mieux maítriser la vitesse d'écoulement du produit lors de l'application. The object of the invention is also to provide an applicator which remains simple and economical manufacturing, and practical use. Otherwise, when the product to be applied is relatively fluid, the object of the invention is to better control the flow velocity of the product during application.

Plus particulièrement, un autre objet de l'invention consiste en une brosse de mascara comportant des poils plus chargés en mascara qu'une brosse classique, tout en étant apte à conférer un maquillage très régulier aux cils.More particularly, another object of the invention consists of a brush of mascara with more mascara-charged hairs than a conventional brush, while being able to give a very regular makeup eyelashes.

La demanderesse a constaté, par ailleurs, que l'intersection des cils avec un mélange de poils à profils hélicoïdaux lévogyre et dextrogyre, dont est pourvue une brosse de mascara, épouse la forme de l'ensemble des cils d'une paupière. Contrairement aux brosses de l'art antérieur, une telle brosse permet un gainage plus homogène et complet de la surface entière de chaque cil. Ainsi, lorsque l'utilisatrice applique la brosse sur les cils, elle charge la base des cils en mascara sur toute la largeur de la paupière. Ensuite, en faisant tourner la brosse autour de son axe central, elle libère successivement le mascara chargé dans les profils des poils sur toute la surface de chaque cil, tout en les peignant et en les séparant. Une telle brosse permet d'obtenir un maquillage à la fois chargé, régulier, allongeant et recourbant.The plaintiff has found, moreover, that the intersection of the eyelashes with a a mixture of bristles with helical profiles levorotatory and dextrorotary, of which is provided a mascara brush, matches the shape of all the eyelashes of an eyelid. Unlike brushes of the prior art, such a brush allows a cladding more homogeneous and complete of the entire surface of each eyelash. So when the user applies the brush on the eyelashes, it charges the base of the eyelashes in mascara over the entire width of the eyelid. Then, turning the brush around its central axis, it successively releases the mascara loaded into the profiles of bristles over the entire surface of each eyelash, while painting and separating them. Such a brush makes it possible to obtain a makeup that is both loaded, regular, lengthening and curling.

Un autre objet encore de l'invention consiste en un pinceau pour l'application d'un vernis sur les ongles et présentant des propriétés d'écoulement contrôlées, tout en présentant un pouvoir de rétention en produit très important.Another object of the invention is a brush for the application of a varnish on the nails and having controlled flow properties, while by presenting a very important product retention capacity.

Aussi, la présente invention a pour objet un dispositif pour l'application d'un produit, notamment cosmétique ou dermatologique, comportant :

  • un élément de préhension et un organe d'application, solidaire dudit élément de préhension, ledit organe d'application comprenant un arrangement de poils, ledit arrangement étant formé par un mélange d'au moins deux groupes de poils de type différent, caractérisé en ce ledit premier groupe, sur au moins une portion de la longueur des poils, présente au moins un profil hélicoïdal lévogyre, et en ce que ledit second groupe de poils présente, sur au moins une portion de la longueur des poils, au moins un profil dextrogyre.
Also, the subject of the present invention is a device for applying a product, in particular a cosmetic or dermatological product, comprising:
  • a gripping member and an applicator member, integral with said gripping member, said applicator member comprising a bristle arrangement, said arrangement being formed by a mixture of at least two groups of bristles of different types, characterized in that said first group, on at least a portion of the length of the bristles, has at least one levorotatory helical profile, and in that said second group of bristles has, on at least a portion of the length of the bristles, at least one dextrorotatory profile .

Selon un mode de réalisation, tout ou partie des poils desdits premier et/ou second groupes présente une section transversale ayant au moins une arête progressant de manière hélicoïdale autour d'un axe longitudinal desdits poils. According to one embodiment, all or part of the hairs of said first and / or second groups has a cross section having at least one edge progressing helically around a longitudinal axis of said bristles.

Dans ce cas, la section transversale peut être de forme polygonale, notamment carrée, triangulaire ou rectangulaire.In this case, the cross-section may be of polygonal shape, in particular square, triangular or rectangular.

Selon un autre mode de réalisation, tout ou partie des poils desdits premier et/ou second groupes présente une section transversale ayant au moins une portion en creux progressant de manière hélicoïdale autour d'un axe longitudinal desdits poils. Dans ce cas, la section transversale peut être de forme cruciforme ; trilobe ; tetralobe ; ovale creuse ; cylindrique creuse ; rectangulaire creuse ; polygonale, polygonale creuse ; en forme de « 8 », de « C », de « S », de « E », de « F », de « H », de « I », de « L », de « N », de « W », de « V », de « T », de « Y »; de forme d'étoile ou de forme de croissant.According to another embodiment, all or part of the hairs of said first and / or second groups has a cross-section having at least one recessed portion progressing helically around a longitudinal axis of said bristles. In this case, the cross section may be cruciform in shape; trilobe; tetralobe; oval hollow; hollow cylindrical; hollow rectangular; polygonal, polygonal hollow; in the form of "8", "C", "S", "E", "F", "H", "I", "L", "N", "W", "V", "T", "Y"; of star shape or crescent shape.

Selon une première possibilité, la portion en creux est formée sur la surface des poils. Il est possible, également, que la portion en creux est formée à l'intérieur des poils.According to a first possibility, the recessed portion is formed on the surface of the fur. It is possible, also, that the recessed portion is formed inside hairs.

Alternativement, tout ou partie des poils desdits premier et/ou second groupes peut présenter une section transversale ayant au moins une nervure progressant de manière hélicoïdale autour d'un axe longitudinal desdits poils.Alternatively, all or part of the hairs of said first and / or second groups can have a cross-section having at least one progressing rib of helically around a longitudinal axis of said bristles.

La proportion du nombre de poils du premier groupe par rapport au nombre de poils du second groupe peut varier entre 2 % et 98 %.The proportion of the number of hairs of the first group in relation to the number of hairs of the second group can vary between 2% and 98%.

Selon un mode de réalisation, l'organe d'application comporte au moins une touffe constituée desdits poils, les poils étant orientés sensiblement parallèlement, une extrémité de la touffe étant fixée sur l'élément de préhension par l'intermédiaire d'une tige. Lorsqu'un l'organe d'application est formé par une seule touffe de poils, on peut obtenir un dispositif d'application particulièrement adapté à l'application d'un vernis sur les ongles, tel qu'un pinceau de vernis à ongles. Un tel organe d'application peut également être conformé en pinceau « blush », permettant l'application d'une poudre sur le visage ou en pinceau eye-liner. According to one embodiment, the application member comprises at least one tuft consisting of said bristles, the bristles being oriented substantially in parallel, one end of the tuft being attached to the gripping element by through a rod. When the application organ is formed by a single tuft of hair, it is possible to obtain a particularly suitable application device the application of nail polish, such as a nail polish brush. A said applicator member may also be shaped as a "blush" brush, allowing the application of a powder on the face or brush eyeliner.

Selon une disposition particulière de l'invention, l'organe d'application est solidaire d'une extrémité libre d'un support, ledit organe d'application étant disposé dans un plan dudit support et orienté transversalement à un axe longitudinal du support. Une telle disposition peut être adoptée, avantageusement, pour un dispositif d'application de mascara sur les cils.According to a particular embodiment of the invention, the application member is solidary of a free end of a support, said applicator member being disposed in a plane of said support and oriented transversely to a longitudinal axis of the support. Such a provision may be adopted, advantageously, for a mascara application device on the eyelashes.

Selon un mode de réalisation, lesdits poils sont orientés, de manière sensiblement radiale sur l'organe d'application, par rapport à une âme centrale. Dans ce cas, le dispositif d'application peut être utilisé en tant que brosse de mascara ou comme applicateur de teinture capillaire sur les cheveux.According to one embodiment, said bristles are oriented, in a manner substantially radial on the applicator member, with respect to a central core. In this case, the application device can be used as a brush of mascara or as a hair dye applicator on the hair.

Avantageusement, une telle âme est formée par l'enroulement de deux branches d'un fil métallique de manière à serrer les poils entre les branches enroulées de l'âme. Dans ce cas, on obtient un brosse du type « goupillon ». De préférence, l'âme définit un axe confondu avec l'axe du dispositif d'application.Advantageously, such a core is formed by the winding of two branches of a wire so as to tighten the bristles between the rolled branches of blade. In this case, we obtain a brush type "bottle brush". Preferably, the soul defines an axis coinciding with the axis of the application device.

Le dispositif d'application peut présenter des formes extérieures variables, Ainsi, son profil, formé par les extrémités des poils, peut être ajusté aux besoins, selon la nature du produit à appliquer et la morphologie du support. Ce profil peut être obtenu, par exemple par tonte des poils à l'aide d'une tondeuse. Le dispositif d'application peut comporter un mélange de poils d'une première longueur et de poils d'une seconde longueur, supérieure à la première.The application device may have variable external shapes, so its profile, formed by the ends of the bristles, can be adjusted to the needs, according to the nature of the product to be applied and the morphology of the support. This profile can be obtained, for example by mowing hair with a mower. The device application may comprise a mixture of hairs of a first length and hair of a second length, greater than the first.

En outre, tout ou partie des poils des dispositifs d'application visés par l'invention peuvent être de toute type : à extrémités effilées ou arrondies, en forme de fourchette ou de tête d'épingle, ou avoir subi toutes sortes de traitements connus par l'homme du métier. Ces poils peuvent être ondulés dans un plan ou conformés en spirale étirée.In addition, all or part of the bristles of the application devices covered by the invention can be of any type: with tapered or rounded ends, shaped like fork or pinhead, or have undergone all kinds of known treatments by the skilled person. These hairs can be wavy in a plane or shaped spiral stretched.

En ce qui, concerne la section des poils, celle-ci peut s'inscrire, avantageusement, dans un cercle de diamètre compris entre environ 6/100ème de mm et environ 30/100ème de mm. Regarding the section of the bristles, it can be registered, advantageously, in a circle with a diameter of between about 6/100 th of mm and about 30/100 th of mm.

En fonction de la nature de l'organe d'application ainsi que celle du produit à appliquer, la longueur des poils peut être comprise, entre environ 2 mm et environ 25 mm. Dans la cas d'une brosse du type « goupillon », la longueur d'un poil est définie par la distance entre ses deux extrémités libres.Depending on the nature of the application organ and the nature of the product to apply, the length of the bristles can be between about 2 mm and about 25 mm. In the case of a brush type "brush", the length of a hair is defined by the distance between its two free ends.

Les poils peuvent être réalisés, par exemple, en polyéthylène, en polypropène, en copolymère éthylène/propylène, en polyamide, en polyester, en chlorure de polyvinyle, en téflon, en polyéthylène téréphthalate ou en élastomère thermoplastique.The bristles may be made, for example, of polyethylene, polypropylene, ethylene / propylene copolymer, of polyamide, of polyester, of polyvinyl, teflon, polyethylene terephthalate or elastomer thermoplastic.

De façon avantageuse, le profil hélicoïdal des poils présente un pas compris entre 1 mm et 20 mm, et de préférence entre 1,5 mm et 10 mm, ou encore entre 2mm et 9 mm.Advantageously, the helicoidal profile of the bristles has a pitch between 1 mm and 20 mm, and preferably between 1.5 mm and 10 mm, or between 2 mm and 9 mm.

Lorsque ledit profil est réalisé sous forme d'une gorge ou d'une nervure, de manière avantageuse, la gorge (nervure) présente une profondeur (hauteur) de sorte que le rapport entre la profondeur (hauteur) de la gorge (nervure) et le diamètre du cercle dans lequel sont inscrites les sections des poils soit compris entre 1/10 et 9/10. A titre purement indicatif, la profondeur de la gorge peut être comprise entre 2/100ème de mm et 8/100ème de mm.When said profile is made in the form of a groove or a rib, advantageously, the groove (rib) has a depth (height) so that the ratio between the depth (height) of the groove (rib) and the diameter of the circle in which the sections of the bristles are written is between 1/10 and 9/10. For information only, the depth of the groove can be between 2/100 th of mm and 8/100 th of mm.

L'invention se rapporte également à un ensemble d'application comportant un réservoir destiné à contenir le produit à appliquer, apte à être prélevé à l'aide d'un dispositif d'application tel que défini précédemment.The invention also relates to an application set comprising a container intended to contain the product to be applied, capable of being taken with the aid of a application device as defined above.

Dans un tel ensemble d'application, pour pouvoir assurer un dosage correct du produit et sa répartition homogène sur l'organe d'application, dans certains cas, un organe d'essorage peut être prévu, situé avantageusement au voisinage de l'extrémité ouverte du réservoir. Un tel organe d'essorage est destiné à doser la quantité de produit prélevée par l'organe d'application, et à le répartir, de manière régulière. De préférence, un tel organe d'essorage est constitué d'un matériau élastomérique, réalisé éventuellement en mousse, et présente un passage apte à être traversé par l'organe d'application et, le cas échéant, par une portion de tige reliant l'organe d'application à l'élément de préhension. Ledit passage de l'organe d'essorage peut comporter au moins une lèvre d'essorage, ouverte ou jointive. Notamment lorsque l'organe d'application est porte par une tige plate, ce passage peut se présenter, sous forme d'au moins une fente s'étendant sur une partie substantielle de la section de l'organe d'essorage.In such an application set, in order to ensure a correct dosage of the product and its homogeneous distribution on the application organ, in some cases a wiper member may be provided, advantageously situated in the vicinity of the open end of the tank. Such a wiper member is intended to dose the quantity of product taken by the application body, and to distribute it regular. Preferably, such a wiper member is made of a material elastomer, possibly made of foam, and has a passage adapted to be traversed by the applicator member and, if appropriate, by a portion of a rod connecting the applicator member to the gripping member. Said passage of the organ de-spinning may comprise at least one squeezing lip, open or contiguous. In particular when the application member is carried by a flat shank, this passage may be in the form of at least one slot extending over a portion substantial section of the wiper member.

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

Sur ces dessins :

  • la figure 1 représente une vue en coupe axiale d'un ensemble d'application de mascara, selon un premier mode de réalisation de l'invention ;
  • la figure 2 représente une vue en coupe axiale d'un ensemble d'application de vernis à ongles, selon un second mode de réalisation de l'invention ;
  • la figure 3 représente une vue en coupe axiale d'un autre ensemble d'application de mascara, selon un autre mode de réalisation de l'invention ;
  • les figures 4 à 25 illustrent, une vue en perspective, de poils lévogyres et dextrogyres, utilisables pour la réalisation des ensembles d'application des figures 1 à 3.
On these drawings:
  • Figure 1 shows an axial sectional view of a mascara application set, according to a first embodiment of the invention;
  • FIG. 2 represents an axial sectional view of a nail polish application set, according to a second embodiment of the invention;
  • Figure 3 shows an axial sectional view of another set of mascara application, according to another embodiment of the invention;
  • FIGS. 4 to 25 illustrate a perspective view of levogyric and dextrorotatory bristles that can be used for producing the application assemblies of FIGS. 1 to 3.

En référence à la figure 1, on voit un ensemble d'application de mascara 1, d'axe central X, pour l'application d'un produit M contenu dans un réservoir cylindrique 2 et équipé d'un applicateur 3. L'applicateur 3 comporte un bouchon 3a apte à être fixé, par vissage, sur le col 21 du réservoir et servant d'élément de préhension. Le col 21 comporte un filetage externe 22, apte à coopérer avec un filetage complémentaire 3b réalisé sur la portion inférieure de la surface interne du bouchon 3a. Le bouchon 3a présente une forme générale cylindrique allongée, permettant une prise en main aisée. Le bouchon 3a est pourvu d'une tige centrale 5 émergeant du bouchon 3a. Cette tige 5 présente une extrémité inférieure 5a sur laquelle est fixé, par exemple par collage ou emboítage, un organe d'application 4.With reference to FIG. 1, we can see a set of mascara application 1, of axis central X, for the application of a product M contained in a cylindrical tank 2 and equipped with an applicator 3. The applicator 3 comprises a cap 3a capable of being fixed by screwing on the neck 21 of the reservoir and serving as a gripping element. The collar 21 has an external thread 22, able to cooperate with a thread complementary 3b made on the lower portion of the inner surface of the cap 3a. The plug 3a has a generally elongated cylindrical shape, allowing easy handling. The cap 3a is provided with a central rod 5 emerging from the plug 3a. This rod 5 has a lower end 5a on which is fixed, for example by gluing or casing, an application member 4.

Le col 21 du flacon présente un bord circulaire libre 23 définissant une ouverture 10. Dans cette ouverture est monté un organe d'essorage 8, formé d'un matériau élastiquement déformable. L'organe d'essorage se présente sous la forme d'un doigt de gant dont le fond est tourné vers le réservoir 2. Le fond est ouvert, de manière à former une lèvre d'essorage circulaire, apte lors de l'extraction de l'applicateur 6 hors du réservoir, à essorer d'abord la tige, puis à enlever tout excès de produit, sur l'organe d'application. En position de stockage, l'organe d'essorage est traversé par la tige 5.The neck 21 of the bottle has a free circular edge 23 defining an opening 10. In this opening is mounted a wring member 8, formed of a material elastically deformable. The wiper member is in the form of a glove finger whose bottom is turned towards the tank 2. The bottom is open, to form a circular spin lip, suitable for the extraction of the applicator 6 out of the tank, first squeeze the stem, then remove all excess of product, on the organ of application. In storage position, the organ spin is crossed by the rod 5.

L'organe d'application 4 montré sur la figure 1 est une brosse pour l'application de mascara sur les cils, comprenant une âme 4a allongée, formée par torsade de deux branches d'un fil métallique qui a été replié en U. L'âme 4a est fixée par emmanchement à force dans l'extrémité 5a de la tige 5. Une multitude de poils 9 est implantée radialement entre les fils de l'âme 4a. Lorsque les branches du fil sont torsadées, les poils sont serrés et maintenus entre les spires en hélice de l'âme 4a. La loupe A montre deux types de poils de section triangulaire et carrée, le poil de section triangulaire comportant un profil hélicoïdal lévogyre P7 et le poil de section carrée comportant un profil hélicoïdal dextrogyre R20.The applicator member 4 shown in FIG. 1 is a brush for applying mascara to the eyelashes, comprising an elongated core 4a formed by twisting two branches of a wire which has been folded into a U. 4a core is fixed by force fitting into the end 5a of the rod 5. A multitude of bristles 9 is implanted radially between the son of the core 4a. When the branches of the wire are twisted, the bristles are tightened and held between the helical turns of the core 4a. The magnifying glass A shows two types of triangular and square section hairs, the triangular section hair having a levorotatory helical profile P 7 and the square section hairs having a dextrorotatory helical profile R 20 .

L'âme 4a peut être centrale. Dans ce cas, elle définit un axe confondu avec l'axe X de la brosse. Elle peut également être excentrée par rapport au cercle, dans lequel les poils sont inscrits. Les poils 9, réalisés en fibres synthétiques et éventuellement floqués, sont choisis parmi les poils précédemment définis, et illustrés, de manière non limitative, sur les figures 4 à 25. La brosse 4 peut comporter un mélange de poils de différents types (différents diamètres, formes, sections, élasticités, matériaux).Soul 4a can be central. In this case, it defines an axis coinciding with the axis X of the brush. It can also be eccentric with respect to the circle, in which hairs are inscribed. The bristles 9, made of synthetic fibers and optionally flocked, are chosen from the hairs previously defined, and illustrated, in a nonlimiting manner, in FIGS. 4 to 25. The brush 4 can have a mixture of bristles of different types (different diameters, shapes, sections, elasticities, materials).

La brosse peut présenter toute forme extérieure connue, obtenue, par exemple en coupant les extrémités des poils 9 à l'aide d'une tondeuse. The brush may have any known external shape, obtained for example in cutting the ends of the hairs 9 with a lawn mower.

La brosse conforme à l'invention peut être fortement chargée en mascara. A son contact, la base des cils se charge elle-même fortement en mascara. Lorsque l'utilisatrice fait tourner la brosse 1 sur elle-même, les cils continuent à être en contact avec la brosse sur toute leur longueur et continuent à se charger tout en se courbant. Les poils commencent à peigner les cils. Lorsque l'utilisatrice continue de faire tourner la brosse sur elle-même, les cils sont pris en charge par les poils dans une zone du profil en hélice, d'orientation variable en fonction du degré d'interpénétration des cils dans la brosse. Le produit est ainsi reparti sur tout le pourtour et sur toute la longueur de chaque cil. En d'autres termes, lors de l'opération de maquillage, les micro-réservoirs que constituent les gorges changent de position par rapport au cil à traiter, assurant une autonomie sensiblement améliorée, ainsi qu'une enduction homogène du cil.The brush according to the invention can be heavily loaded with mascara. To his contact, the base of the eyelashes itself loads strongly with mascara. When the user turns the brush 1 on itself, the eyelashes continue to be in contact with the brush over their entire length and continue to load while curving. The hairs start to comb the lashes. When the user continues to turn the brush on itself, eyelashes are supported by the hairs in an area of the helical profile, of variable orientation depending on the degree of interpenetration of the eyelashes in the brush. The product is distributed over all the circumference and along the length of each eyelash. In other words, when the make-up operation, the micro-reservoirs that constitute the throats change position relative to the eyelash to be treated, ensuring autonomy significantly improved, as well as a homogeneous coating of the eyelash.

Ainsi, chaque cil est chargé de façon homogène, aussi bien sur toute sa longueur que sur tout son pourtour. lil n'y a pas de différence de maquillage entre les cils d'extrémité de la paupière et ceux du milieu. Les cils sont parfaitement séparés les uns des autres, allongés et recourbés.Thus, each eyelash is loaded homogeneously, as well along its entire length only on its entire periphery. There is no difference in makeup between the eyelashes end of the eyelid and those in the middle. Eyelashes are perfectly separated from each other, elongated and bent.

Sur la figure 2, on peut voir un ensemble d'application désigné de façon générale par la référence 101, comportant un réservoir 102, présentant un axe longitudinal X de symétrie, et un applicateur 106 muni d'un manchon de préhension 103. Le réservoir 102, réalisé avantageusement en verre, contient un produit V liquide ou visqueux à appliquer, qui peut être par exemple, une composition de vernis à ongles.In Figure 2, one can see a set of application generally designated by reference 101, having a reservoir 102 having a longitudinal axis X symmetry, and an applicator 106 provided with a grip sleeve 103. The reservoir 102, advantageously made of glass, contains a liquid product V or viscous to apply, which can be for example, a varnish composition to nails.

Le réservoir 102 comprend un goulot 121 définissant une ouverture 110. Le goulot 121 comporte un filetage 122, apte à coopérer avec un filetage complémentaire pratiqué à l'intérieur du manchon 103.The reservoir 102 comprises a neck 121 defining an opening 110. neck 121 has a thread 122, adapted to cooperate with a thread complementary practice inside the sleeve 103.

Le manchon 103 comporte également un organe d'application 104 qui, dans le cas présent, est formé d'un pinceau, constitué d'une touffe de poils 109 sensiblement parallèles, fixée à l'extrémité libre 105a d'une tige 105. L'autre extrémité de la tige est solidaire du manchon 103.The sleeve 103 also comprises an application member 104 which, in the case, is formed of a brush, consisting of a tuft of hairs 109 substantially parallel, fixed to the free end 105a of a rod 105. The other end of the rod is secured to the sleeve 103.

Lorsque l'ensemble d'application est fermé par vissage du manchon 103 sur le réservoir 102, la touffe 104 de poils 109 trempe dans le produit V. Ces poils 109 sont constitués d'un mélange de poils à profil lévogyre et dextrogyre, tels que définis précédemment. Les poils sont plus particulièrement choisis par les poils montrés sur les figures 4 à 25.When the application assembly is closed by screwing the sleeve 103 onto the reservoir 102, the tuft 104 of bristles 109 dipped in the product V. These hairs 109 consist of a mixture of laevorotatory and dextrorotatory hairs, such as previously defined. The hairs are more particularly chosen by the hairs shown in Figures 4 to 25.

Lorsque l'utilisateur souhaite appliquer du produit 3, il dévisse le capuchon et extrait le pinceau hors du réservoir. Le pinceau comporte alors, le plus souvent, un excès de produit. Pour essorer le pinceau, l'utilisateur l'essuie contre le bord libre du col 121.When the user wishes to apply product 3, he unscrews the cap and pull the brush off the tank. The brush then, most often, an excess of product. To spin the brush, the user wipes it against the edge free of the collar 121.

Il est à noter que le pinceau reste bien chargé et présente un bon pouvoir de rétention du vernis, même après plusieurs passages d'essorage, sans formation de gouttes. Le dépôt du vernis sur l'ongle s'effectue avec une vitesse d'écoulement à la fois réduite, et sensiblement constante. La couche de vernis obtenue est plus régulière, et le séchage du vernis s'effectue de manière sensiblement plus rapide.It should be noted that the brush remains well charged and has a good power of retention of the varnish, even after several passages of spin, without training of drops. The nail polish is deposited with a speed flow rate both reduced, and substantially constant. The layer of varnish obtained is more regular, and the drying of the varnish takes place significantly faster.

Sur la figure 3 on voit une brosse à mascara 206, qui se différencie de celle représentée à la figure 1 par le fait que sa tige 205 est sensiblement plate. Elle présente à son extrémité libre 205a une largeur voisine de celle d'un ensemble 204 de poils 209, formé dans le plan de la tige 205, de manière sensiblement perpendiculaire à un axe de l'applicateur 206. Les poils 209 utilisés sont du même type que ceux décrits en références aux figures 1 et 2. L'autre extrémité de la tige 205 est fixée dans un manchon de préhension 203.In Figure 3 we see a mascara brush 206, which differs from that represented in FIG. 1 by the fact that its rod 205 is substantially flat. She has at its free end 205a a width close to that of a set 204 of hairs 209, formed in the plane of the rod 205, substantially perpendicular to an axis of the applicator 206. The bristles 209 used are of the same type than those described with reference to Figures 1 and 2. The other end of the rod 205 is fixed in a gripping sleeve 203.

La brosse à mascara 206 fait partie d'un ensemble de maquillage 201 comportant un réservoir 202 contenant un produit M, surmonté d'un élément porte-essoreur 222. L'élément porte-essoreur est pourvu d'un col 210 sur lequel peut être fixé le manchon 203. L'élément porte-essoreur comporte en outre un épaulement 223, sur lequel est monté un organe d'essorage 208. Dans le cas présent, l'organe d'essorage est formé par une membrane en élastomère ou en mousse, présentant une fente 211, apte à être traversée, lors du retrait de l'applicateur 206, par une portion au moins de la tige 205 et par l'ensemble 204 des poils 209. Le plan d'implantation des poils 209 peut être incliné par rapport au plan passant par la tige 205.The mascara brush 206 is part of a make-up set 201 comprising a reservoir 202 containing a product M, surmounted by a wiper element 222. The wiper element is provided with a neck 210 on which can be fixed the sleeve 203. The wiper member further comprises a shoulder 223, on which is mounted a squeezing member 208. In this case, the organ of spin is formed by an elastomer or foam membrane, having a slot 211, able to be crossed, when removing the applicator 206, by at least a portion of the rod 205 and by the assembly 204 of the bristles 209. The implantation plan of the bristles 209 can be inclined with respect to the passing plane by the rod 205.

Lorsque l'on extrait l'applicateur 206 hors du réservoir, la brosse chargée de mascara passe à travers l'essoreur 211. Celui-ci essore la face externe des poils, les profils hélicoïdaux des poils retenant une réserve important de produit.When the applicator 206 is removed from the reservoir, the brush loaded with mascara passes through the wiper 211. This squeezes the outer face of the hair, the helicoidal profiles of the hairs holding a large reserve of product.

Lorsque les applicateurs visés par l'invention sont soumis à une opération d'essorage, avant application du produit, l'essorage est effectué de manière « random », c'est-à-dire la répartition du produit dans les profils hélicoïdaux est telle que des micro-réserves de produit sont présentes sur chaque poil à un niveau différent. Ces micro-réserves sont aptes à assurer une répartition très homogène du produit sur le support à traiter.When the applicators covered by the invention are subjected to an operation before the product is applied, the spin is carried out "Random", that is, the distribution of the product in the helical profiles is such as micro-product reserves are present on each hair at a different level. These micro-reserves are able to ensure a very homogeneous product on the support to be treated.

Les figures 4 à 25 illustrent des configurations de poils particulièrement préférées pour la réalisation des applicateurs 6, 106, 206 décrits ci-dessus. Chacune de ces figures représente une paire de poils de même section en configuration lévogyre et dextrogyre. Il est bien entendu que n'importe quel type de poil lévogyre peut être mélangé avec n'importe quel type de poil dextrogyre. Les nervures ou arêtes hélicoïdales sont indiquées par la référence N, les gorges hélicoïdales étant indiquées par la référence G.Figures 4 to 25 illustrate particularly preferred hair configurations for producing the applicators 6, 106, 206 described above. Each of these figures represents a pair of hairs of the same section in a lévogyre configuration and dextrogyra. It is understood that any type of levorotatory hair can be mixed with any type of dextrorotary hair. Ribs or ridges The helical grooves are indicated by the reference N, the helical grooves being indicated by the reference G.

Ainsi, la figure 4 montre une vue en perspective deux poils dont la section S4 a la forme d'un « T ».Thus, Figure 4 shows a perspective view of two bristles whose section S 4 has the shape of a "T".

La figure 5 montre une vue en perspective de deux poils dont la section S5 a la forme d'un « I ». Figure 5 shows a perspective view of two bristles whose section S 5 has the shape of an "I".

La figure 6 montre une vue en perspective de deux poils dont la section S6 a la forme d'un « Y ».Figure 6 shows a perspective view of two bristles whose section S 6 has the shape of a "Y".

La figure 7 montre une vue en perspective de deux poils dont la section S7 a la forme d'un triangle.Figure 7 shows a perspective view of two bristles whose section S 7 has the shape of a triangle.

La figure 8 montre une vue en perspective de deux poils dont la section S8 a la forme d'un « C ».Figure 8 shows a perspective view of two bristles whose section S 8 has the shape of a "C".

La figure 9 montre une vue en perspective de deux poils dont la section S9 a la forme d'un « L ».Figure 9 shows a perspective view of two bristles whose section S 9 has the shape of an "L".

La figure 10 montre une vue en perspective de deux poils dont la section S10 a la forme d'un « H ».Figure 10 shows a perspective view of two bristles whose section S 10 has the shape of an "H".

La figure 11 montre une vue en perspective de deux poils dont la section S11 a la forme d'un « W ».Figure 11 shows a perspective view of two bristles whose section S 11 has the shape of a "W".

La figure 12 montre une vue en perspective de deux poils dont la section S12 a la forme d'un « E ».Figure 12 shows a perspective view of two bristles whose section S 12 has the shape of an "E".

La figure 13 montre une vue en perspective de deux poils dont la section S13 a la forme d'un croissant.Figure 13 shows a perspective view of two bristles whose section S 13 has the shape of a crescent.

La figure 14 montre une vue en perspective de deux poils dont la section S14 a une forme ovale creuse.Figure 14 shows a perspective view of two bristles whose section S 14 has a hollow oval shape.

La figure 15 montre une vue en perspective de deux poils dont la section S15 a une forme rectangulaire creuse. Figure 15 shows a perspective view of two bristles whose section S 15 has a hollow rectangular shape.

La figure 16 montre une vue en perspective de deux poils dont la section S16 a la forme d'un « S ».Figure 16 shows a perspective view of two bristles whose section S 16 has the shape of an "S".

La figure 17 montre une vue en perspective de deux poils dont la section S17 a la forme d'un carré à crêtes N.FIG. 17 shows a perspective view of two bristles whose section S 17 has the shape of a square with ridges N.

La figure 18 montre une vue en perspective de deux poils dont la section S18 a la forme d'un rectangle aplati.Figure 18 shows a perspective view of two bristles whose section S 18 has the shape of a flattened rectangle.

La figure 19 montre une vue en perspective de deux poils dont la section S19 a une forme tetratobe.Figure 19 shows a perspective view of two bristles whose section S 19 has a tetratobe shape.

La figure 20 montre une vue en perspective de deux poils dont la section S20 a la forme d'un carré.Figure 20 shows a perspective view of two bristles whose section S 20 has the shape of a square.

La figure 21 montre une vue en perspective de deux poils dont la section S21 a la forme d'un « X ».Figure 21 shows a perspective view of two bristles whose section S 21 has the shape of an "X".

La figure 22 montre une vue en perspective de deux poils dont la section S22 a la forme d'un cercle pourvu d'un cordon N.FIG. 22 shows a perspective view of two bristles whose section S 22 has the shape of a circle provided with a cord N.

La figure 23 montre une vue en perspective de deux poils dont la section S23 a la forme d'un cercle pourvu de deux cordons N opposés.FIG. 23 shows a perspective view of two bristles whose section S 23 is in the form of a circle provided with two opposite N-beads.

La figure 24 montre une vue en perspective de deux poils dont la section S24 a la forme d'un « 8 ».Figure 24 shows a perspective view of two bristles whose section S 24 has the shape of a "8".

La figure 25 montre une vue en perspective de deux poils dont la section S25 a la forme d'une étoile.Figure 25 shows a perspective view of two bristles whose section S 25 has the shape of a star.

Ces poils à profil hélicoïdal peuvent être obtenus par extrusion d'un matériau thermoplastique au travers une buse présentant un profil approprié, puis torsadés par torsion à chaud, à droite ou à gauche autour de leur axe, selon le pas et le sens de torsion du profil hélicoïdal souhaité.These bristles with a helical profile can be obtained by extrusion of a material thermoplastic through a nozzle having a suitable profile, and then twisted by twisting hot, right or left around their axis, according to the pitch and twist direction of the desired helical profile.

Avantageusement, la section des poils ci-dessus s'inscrit dans un cercle dont le diamètre est compris entre 6/100ème mm et 30/100ème mm.Advantageously, the section of the bristles above is in a circle whose diameter is between 6/100 th mm and 30/100 th mm.

Ils peuvent être réalisés en polyamide (PA6, PA6/6, PA11, PA6/10, PA6/12), en polyester, en polyéthylène, en polypropylène, en copolymère éthylène/propylène, en chlorure de polyvinyle, en téflon, en polyéthylène téréphthalate ou en élastomère thermoplastique. Le cas échéant, on peut incorporer dans ces matériaux des agents favorisant leur glissement, tel que le graphite, le bisulfure de molybdène ou le téflon.They may be made of polyamide (PA6, PA6 / 6, PA11, PA6 / 10, PA6 / 12), polyester, polyethylene, polypropylene, ethylene / propylene copolymer, polyvinyl chloride, teflon, polyethylene terephthalate or thermoplastic elastomer. Where appropriate, one can incorporate in these materials of agents promoting their sliding, such as graphite, bisulphide molybdenum or teflon.

Les poils utilisés selon la présente invention peuvent obtenus par un procédé similaire à celui décrit dans le document WO 97/10374 auquel il a été fait référence précédemment.The bristles used according to the present invention can be obtained by a process similar to that described in WO 97/10374 to which it was made reference previously.

Les applicateurs de la présente invention peuvent comporter un mélange de poils torsadés lévogyre et dextrogyre de différents types, tels que définis précédemment. Ces poils peuvent être mélangés, également avec des poils non torsadés de tout type, connus dans l'état de la technique.The applicators of the present invention may comprise a hair mixture twisted levorotatory and dextrorotatory of different types, as defined previously. These hairs can be mixed, also with non-hair twisted of any type, known in the state of the art.

La combinaison de poils de section non cylindrique et à profil hélicoïdal lévogyre et dextrogyre, torsadés suivant leur axe, permet d'augmenter considérablement le pouvoir de rétention en produit, notamment dans les interstices formés entre les poils.The combination of non-cylindrical section hairs with a levogyre helical profile and dextrorotor, twisted along their axis, can significantly increase the product retention, especially in interstices formed between fur.

Il est bien entendu que le mélange de poils à profil hélicoïdal peut comporter, en outre, une quantité de poils non torsadés, de section bien connue dans l'art antérieur. A titre d'exemple, on peut citer les sections circulaire, polygonale, plate, trilobe, tetralobe, en »L », en « C », en « U », etc.. Ces poils non torsadés peuvent être pleins ou creux, par exemple cylindrique creux. It is understood that the mixture of helical profile hair may comprise, in in addition, a quantity of non-twisted hairs, of section well known in the art prior. By way of example, mention may be made of circular, polygonal, flat, trilobe, tetralobe, "L", "C", "U", etc. These non-twisted hairs can be solid or hollow, for example hollow cylindrical.

Dans la description détaillée qui précède, il a été fait référence à plusieurs modes de réalisation préférés de l'invention. Il est évident que des variantes peuvent y être apportées sans s'écarter de l'invention telle que revendiquée ci-après.In the above detailed description, reference has been made to several modes preferred embodiment of the invention. It is obvious that variants can to be made without departing from the invention as claimed hereinafter.

Claims (27)

  1. Device (6, 106, 206) for applying a product (M, V), particularly a cosmetic product, and comprising:
    an element (3, 103, 203) for grasping and an applicator member (4, 104, 204), secured to the said element for grasping, the said applicator member comprising an arrangement of bristles (9, 109, 209), the said arrangement being formed of a mixture of at least two groups of bristles of different type,
    characterized in that the said first group, over at least a portion of the length of the bristles, has at least one left-handed helical profile (P4-P26), and in that the said second group of bristles has, over at least a portion of the length of the bristles, at least one right-handed profile (R4-R26).
  2. Device (6, 106, 206) according to Claim 1, characterized in that all or some of the bristles of the said first and/or second groups have a cross section which has at least one ridge progressing in a helix about a longitudinal axis of the said bristles.
  3. Device (6, 106, 206) according to Claim 2, characterized in that the cross section is of polygonal, particularly square, triangular or rectangular, shape.
  4. Device (6, 106, 206) according to Claim 1 or 2, characterized in that all or some of the said first and/or second groups have a cross section which has at least one hollow portion progressing in a helix about a longitudinal axis of the said bristles.
  5. Device (6, 106, 206) according to Claim 4, characterized in that the cross section is in the shape of a cross, a trefoil, a quatrefoil, a hollow oval, a hollow cylinder, a hollow rectangle, a polygon, a hollow polygon, a figure 8, a·C, an S, an E, an F, an H, an I, an L, an N, a W, a V, a T, a Y, a star or a crescent.
  6. Device (6, 106, 206) according to Claim 4 or 5, characterized in that the hollow portion is formed on the surface of the said bristles.
  7. Device (6, 106, 206) according to Claim 4, characterized in that the hollow portion is formed inside the said bristles.
  8. Device (6, 106, 206) according to any one of Claims 1 to 7, characterized in that all or some of the said first and/or second groups have a cross section having at least one rib progressing in a helix about a longitudinal axis of the said bristles.
  9. Device (106) according to any one of Claims 1 to 8, characterized in that it comprises at least one tuft (104) consisting of the said bristles (109), the bristles being oriented roughly in parallel, one end of the tuft being fixed to the element (103) for grasping, by means of a wand (105).
  10. Device (6) according to any one of Claims 1 to 8, characterized in that the said applicator member (204) is secured by a free end to a support (205), the 'said applicator member (204) being arranged in a plane of the said support and oriented transversely with respect to an axis (X) of the support (205).
  11. Device (6) according to Claim 10, characterized in that the said bristles (109, 209) are oriented approximately parallel to the axis (X).
  12. Device (6) according to any one of Claims 1 to 8, characterized in that the said bristles are oriented, approximately radially, with respect to a core (4a) of the applicator member.
  13. Device according to Claim 12, characterized in that the core (4a) is formed by twisting together two branches of a metal wire (3) and in that the bristles (9) are trapped between the twisted-together branches of the core.
  14. Device (6) according to Claims 10 to 13, characterized in that it constitutes a mascara brush.
  15. Device according to any one of Claims 12 to 14, characterized in that the core (4a) defines an axis coincident with the central axis (X) of the applicator member (4).
  16. Device according to any one of the preceding claims, characterized in that it comprises a mixture of bristles of a first length and bristles of a second length, greater than the first.
  17. Device according to any one of the preceding claims, characterized in that all or some of the bristles of the applicator member have rounded, tapered, forked or pinhead ends.
  18. Device according to any one of the preceding claims, characterized in that the helical profile (G, N) has a pitch ranging between 1 mm and 20 mm, and preferably between 1.5 mm and 10 mm, and more specifically between 2 mm and 9 mm.
  19. Device according to any one of the preceding claims, characterized in that the cross section of the bristles lies inside a circle of a diameter ranging between about 6/100ths of an mm and about 30/100ths of an mm.
  20. Device according to Claim 19, characterized in that the groove (rib) has a depth (height) such that the ratio between the depth (height) of the groove (rib) and the diameter of the circle inside which the cross sections of the bristles lie is between 1/10 and 9/10.
  21. Device according to any one of the preceding claims, characterized in that the length of the bristles is between about 2 mm and about 25 mm.
  22. Device according to any one of the preceding claims, characterized in that the bristles (9, 109, 209) are made of polyethylene, polypropene, ethylene/propylene copolymer, polyamide, polyester, polyvinyl chloride, teflon, polyethylene terephthalate or thermoplastic elastomer.
  23. Applicator assembly (1, 101, 201) comprising a reservoir (2, 102, 202) intended to contain a product (M, V) which can be withdrawn using an applicator device (6, 106, 206), characterized in that the said applicator device is one according to any one of the preceding claims.
  24. Applicator assembly (1, 201) according to Claim 23, characterized in that the reservoir has an opening (10, 210), a wringing-out member (8, 208) being arranged near the opening (10, 210) through which the said applicator member (4, 204) can pass, and capable of metering out an amount of product (M) withdrawn using the said applicator member and/or of wringing out a wand (5, 205) connecting the applicator member (4, 204) to the element (3, 203) for grasping.
  25. Applicator assembly (1) according to Claim 24, characterized in that the wringing-out member (8, 208) is made of an elastomeric material, possibly a foam, and has at least one passage (11, 211) through which the said applicator member can pass.
  26. Applicator assembly (1) according to Claim 25, characterized in that the wringing-out member (208) has at least one slit (211) extending across a substantial part of the cross section of the wringing-out member.
  27. Use of an applicator assembly (1, 101, 201) according to any one of Claims 23 to 26, for applying a make-up product (M, V), particularly one for eyelashes or nails.
EP00401918A 1999-07-22 2000-07-04 Applicator for liquid, pasty or powdered products comprising twisted bristles and package provided therewith Expired - Lifetime EP1070462B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9909527 1999-07-22
FR9909527A FR2796531B1 (en) 1999-07-22 1999-07-22 LIQUID, PASTY OR POWDER APPLICATOR COMPRISING TWISTED FIBERS, AND APPLICATION ASSEMBLY THUS EQUIPPED

Publications (2)

Publication Number Publication Date
EP1070462A1 EP1070462A1 (en) 2001-01-24
EP1070462B1 true EP1070462B1 (en) 2003-11-26

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US (1) US6280113B1 (en)
EP (1) EP1070462B1 (en)
JP (1) JP3482383B2 (en)
CN (1) CN1156239C (en)
AR (1) AR024895A1 (en)
AT (1) ATE254864T1 (en)
BR (1) BR0003441B1 (en)
CA (1) CA2314435C (en)
DE (1) DE60006745T2 (en)
ES (1) ES2211472T3 (en)
FR (1) FR2796531B1 (en)
MX (1) MXPA00007038A (en)

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CN1156239C (en) 2004-07-07
DE60006745T2 (en) 2004-09-30
AR024895A1 (en) 2002-10-30
DE60006745D1 (en) 2004-01-08
MXPA00007038A (en) 2002-06-04
BR0003441B1 (en) 2008-11-18
US6280113B1 (en) 2001-08-28
CN1290504A (en) 2001-04-11
JP2001061544A (en) 2001-03-13
EP1070462A1 (en) 2001-01-24
BR0003441A (en) 2001-03-13
ATE254864T1 (en) 2003-12-15
FR2796531B1 (en) 2001-09-28
CA2314435C (en) 2004-11-23
ES2211472T3 (en) 2004-07-16
CA2314435A1 (en) 2001-01-22
FR2796531A1 (en) 2001-01-26

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