EP0721748B1 - Application for viscous cosmetic products, particularly nail polish - Google Patents

Application for viscous cosmetic products, particularly nail polish Download PDF

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Publication number
EP0721748B1
EP0721748B1 EP96400056A EP96400056A EP0721748B1 EP 0721748 B1 EP0721748 B1 EP 0721748B1 EP 96400056 A EP96400056 A EP 96400056A EP 96400056 A EP96400056 A EP 96400056A EP 0721748 B1 EP0721748 B1 EP 0721748B1
Authority
EP
European Patent Office
Prior art keywords
applicator
cosmetic product
applicator member
wall
volume
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
EP96400056A
Other languages
German (de)
French (fr)
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EP0721748A1 (en
Inventor
Jean-Louis Gueret
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
LOreal SA
Original Assignee
LOreal SA
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Filing date
Publication date
Application filed by LOreal SA filed Critical LOreal SA
Publication of EP0721748A1 publication Critical patent/EP0721748A1/en
Application granted granted Critical
Publication of EP0721748B1 publication Critical patent/EP0721748B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B11/00—Brushes with reservoir or other means for applying substances, e.g. paints, pastes, water
    • A46B11/001—Brushes with reservoir or other means for applying substances, e.g. paints, pastes, water with integral reservoirs
    • A46B11/0017—Brushes with reservoir or other means for applying substances, e.g. paints, pastes, water with integral reservoirs with pre-pressurised reservoirs, e.g. aerosols
    • 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
    • A45D34/043—Appliances specially adapted for applying liquid, e.g. using roller or ball using a brush or the like movable within the container
    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B11/00—Brushes with reservoir or other means for applying substances, e.g. paints, pastes, water
    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B11/00—Brushes with reservoir or other means for applying substances, e.g. paints, pastes, water
    • A46B11/0072—Details

Definitions

  • the present invention relates to an applicator for viscous cosmetic products in particular for nail polish.
  • Such applicators are most often constituted by a bottle which contains the cosmetic product and the cap of which is provided a brush or other applicator member which, in the closed state, enters the bottle and is in contact with the cosmetic product of the bottle which prevents the thickening of the cosmetic product which is remained on the brush following the previous application.
  • Applicators of this type are very simple but they have the disadvantage that, during their use, there is a significant risk of the open bottle overturning, leaving drain the cosmetic product which damages the clothes of the user or objects nearby.
  • This second type of applicator facilitates the use of the cosmetic product but has the drawback that when closing of the plug, the applicator member has returned to the interior of the body with a significant amount of cosmetic product that has already started to dry and continue to do so while the cap is already applied on the body of the applicator due to the evaporation of the solvent in the closed volume which surrounds the applicator member.
  • the object of the present invention is to provide an applicator which solves the above mentioned problems.
  • the wall which allows the solvent to enter the volume which contains the organ applicator is a generally tubular body constituted by a porous material obtained for example by sintering, part of which can advantageously serve to form with the applicator member, the obturator between the part of the body of the applicator which contains the product cosmetic and the part of this body which, when closed, contains the applicator organ.
  • this porous wall is in contact by a of its faces with the cosmetic product or with the vapors of the solvent of the latter which are inside the body of the applicator, said solvent migrating through the porous wall to reach the part of the body of the applicator which surrounds the applicator member.
  • a porous wall instead of a porous wall, it is possible to use a generally cylindrical wall or frustoconical which surrounds the applicator member and which is provided with slots very small width or very small diameter holes which by capillarity prevent the passage of the cosmetic product while allowing the passage of the solvent.
  • the volume outside the wall provided with slots is connected to the part of the body of the applicator which contains the cosmetic product.
  • the shutter which prevents the cosmetic product contained in the part back of the applicator body to pass into the front part of the body of the applicator which surrounds the applicator member is constituted by a extra thickness located at the base of the applicator member, which cooperates with the porous or capillary wall which has just been described, so that that, given its viscosity, the cosmetic product cannot flow from the part of the body of the applicator where it is contained, towards the part of the body of the applicator which surrounds the applicator member.
  • the applicator member is extended rearward by a rod having a recess forming a drawer which, when the applicator is open and the applicator member is moved to its position of use, transfers a given volume of cosmetic product into the volume which is located in the front part of the applicator body, so that impregnate the applicator member.
  • the rod which supports the applicator member is hollow so that the wall outer of the rod can cooperate with part of the surface of the porous wall to oppose the passage of the cosmetic product from the body of the applicator where it is contained to the volume that contains the organ applicator while one can provoke from inside the rod the controlled impregnation of the applicator member with the product cosmetic.
  • the cosmetic product contained in the interior of the applicator has not been shown, because its position essentially depends on the position of the applicator and the agitation which was previously communicated to the latter.
  • the cosmetic product is therefore in volume 3 located at inside the rear part 1 of the applicator.
  • This volume 3 contains in known manner a metal ball 4 intended to serve as an agitator to allow homogenization of the cosmetic product when this is necessary.
  • a plug 5 which engages by a thread 6 on the part front 2 of the applicator body makes it possible to close the terminal orifice of the latter.
  • the applicator member is constituted by a brush 7 provided at its base of a bulge 8, the usefulness of which will be described later.
  • the brush 7 is supported by a rod 9 itself connected to a slide cruciform 10 whose other end supports a counterweight 11.
  • the shape of the slide can be different, for example square, rectangular or cylindrical.
  • the cross slide 10 slides in a shaped hole corresponding located in a socket 12 which, at its base 13, is returned secured to the rear part 1 of the body of the applicator by a means any such as by gluing.
  • Openings 14 made in the wall of the socket 12 allow free passage of the cosmetic product between volume 3 and volume 15 located inside the socket 12.
  • the rear 1 and front 2 parts of the applicator body are interconnected at 16 in a sealed manner, for example by collage.
  • the interior of the front part 2 of the body of the applicator a porous wall 17 which, towards the front, delimits a volume 18 in which is located the part before the brush 7.
  • This porous wall can be obtained for example by sintering, by agglomeration of fibers, or be constituted by a foam.
  • the wall porous 17 has a diameter 19 which is greater than the diameter of the bulge 8 which is located at the base of the brush 7.
  • Relative dimensions of bulge 8 and part 19 of the porous wall are such that the applicator can move freely between the closed position and the open position despite the viscosity of the cosmetic product, whereas the latter cannot substantially move from volumes 3 and 15 to volume 18 when the applicator is in the closed position, thus constituting a shutter for the cosmetic product.
  • This displacement can be carried out in the known manner, by shaking the applicator axially, the brush 7 being able to be brought either extended position, or retracted position, due to the inertia of the counterweight 11 to which it is connected.
  • the cosmetic product which is located around the rod 9 which has a diameter substantially smaller than those of the bulge 8 located at the base of the brush and the slide cruciform 10, is entrained inside the volume 18 where a dosed amount of cosmetic product also spreads.
  • the stop 10 a which is located at the front end of the cruciform slide 10 limits the rearward movement of the applicator member.
  • a new sudden movement of the applicator to the right causes a new exit of the brush 7, which is this time impregnated with cosmetic product which can then be applied by the user.
  • the volume 18 is delimited by a porous wall 17 whose rear part leads to volume 15 and is therefore in contact with the cosmetic product.
  • the brush 7 contains still a certain amount of cosmetic product whose viscosity has increased due to the beginning of evaporation of the solvent contained in the cosmetic product when applying the latter.
  • the wall 17 is permeable to solvent so that the latter which is contained in larger amount in the cosmetic product present in rooms 3 and 15 diffuses through the wall 17 to come into the volume 18 where it dissolved in the cosmetic composition which remained on the brush 7.
  • the porous wall 17 is replaced by a part 20 constituted by two walls 21 a and 21 b which delimit between them an annular volume 21 which is in communication with the volumes 15 and 3 which have been previously described.
  • the inner wall 21 b is provided with longitudinal slots 22 of small width which, by their size, allow the passage of the solvent contained in the cosmetic product but which prevent it from passing through them by capillary action.
  • the part 20 plays the same role as the wall porous 17 by ensuring the passage of the solvent from volumes 15 and 3 to the volume 18 in which the residual cosmetic product must not thicken, while preventing the cosmetic product that is kept in volumes 3 and 15 to enter volume 18.
  • FIG. 5 which is a sectional view along VV of FIG. 3, we find the plug 5, the front part 2 of the applicator, the walls 21 a and 21 b which delimit the annular volume 21.
  • the applicator member is constituted by a brush 7 supported by a rod 9a which is hollow and whose internal orifice 9b communicates the brush 7 with the volume 3 of the body 1 by by means of an enlarged part 23 which has a circular lip 24 on which a ball 25 is pushed back by a spring 26 to form a valve.
  • the volume 3 of the body is varied the applicator, constituting it in two mobile parts, one by compared to each other.
  • a counterweight 11 a in the form of a ring allows inertia to bring the brush 7 in or out.
  • the applicator member can be carried out other than in the form of a brush, for example using a porous organ or one provided with fine longitudinal grooves capable of retaining the cosmetic product by capillarity.
  • This organ applicator may also be for example made of foam or a material plastic sintered or obtained by flocking.
  • the invention can also be applied to a product applicator other than a cosmetic product but which would have the same viscosity and solvent characteristics.

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  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Coating Apparatus (AREA)
  • Closures For Containers (AREA)

Description

La présente invention est relative à un applicateur pour produits cosmétiques visqueux en particulier pour vernis à ongles.The present invention relates to an applicator for viscous cosmetic products in particular for nail polish.

On utilise, notamment pour les vernis à ongles, des produits cosmétiques visqueux qui sont généralement appliqués avec des pinceaux.We use, especially for nail polish, products viscous cosmetics that are usually applied with brushes.

De tels applicateurs sont le plus souvent constitués par un flacon qui contient le produit cosmétique et dont le bouchon est muni d'un pinceau ou d'un autre organe applicateur qui, à l'état fermé, pénètre dans le flacon et se trouve en contact avec le produit cosmétique du flacon ce qui évite l'épaississement du produit cosmétique qui est demeuré sur le pinceau à la suite de l'application précédente.Such applicators are most often constituted by a bottle which contains the cosmetic product and the cap of which is provided a brush or other applicator member which, in the closed state, enters the bottle and is in contact with the cosmetic product of the bottle which prevents the thickening of the cosmetic product which is remained on the brush following the previous application.

On sait en effet que de tels produits cosmétiques sont généralement constitués par des composés, colorés ou non, incorporés à des solvants de diverses natures éventuellement aqueux qui par leur évaporation provoquent le séchage et le durcissement du produit cosmétique.We know that such cosmetic products are generally constituted by compounds, colored or not, incorporated into solvents of various possibly aqueous natures which by their evaporation causes the product to dry and harden cosmetic.

Les applicateurs de ce type sont d'une grande simplicité mais ils présentent l'inconvénient que, lors de leur utilisation, il existe un risque non négligeable de voir le flacon ouvert se renverser en laissant s'écouler le produit cosmétique qui endommage les vêtements de l'utilisateur ou les objets qui se trouvent à proximité.Applicators of this type are very simple but they have the disadvantage that, during their use, there is a significant risk of the open bottle overturning, leaving drain the cosmetic product which damages the clothes of the user or objects nearby.

Pour éviter cet inconvénient, on a déjà proposé des applicateurs de type "stylo" conformement au préambule de la revendication 1. Un applicateur de ce type est décrit dans le document EP-A-0 630 597.To avoid this drawback, we have already proposed "pen" type applicators in accordance with the preamble of the claim 1. An applicator of this type is described in the document EP-A-0 630 597.

Ce second type d'applicateur facilite l'utilisation du produit cosmétique mais présente l'inconvénient que, lors de la fermeture du bouchon, l'organe applicateur est rentré à l'intérieur du corps avec une quantité non négligeable de produit cosmétique qui a déjà commencé à sécher et qui continue à le faire alors que le bouchon est déjà appliqué sur le corps de l'applicateur en raison de l'évaporation du solvant dans le volume fermé qui entoure l'organe applicateur.This second type of applicator facilitates the use of the cosmetic product but has the drawback that when closing of the plug, the applicator member has returned to the interior of the body with a significant amount of cosmetic product that has already started to dry and continue to do so while the cap is already applied on the body of the applicator due to the evaporation of the solvent in the closed volume which surrounds the applicator member.

Il se produit ainsi progressivement un dépôt de produit cosmétique solidifié ou fortement visqueux sur l'organe applicateur et dans la partie du corps de l'applicateur qui l'entoure, ce qui conduit à une utilisation de plus en plus difficile du produit cosmétique et à la perte d'une partie de ce dernier.This gradually produces a deposit of product solidified or highly viscous cosmetic on the applicator member and in the part of the applicator's body that surrounds it, which leads to an increasingly difficult use of the cosmetic product and the loss of part of it.

La présente invention a pour but de réaliser un applicateur qui résoud les problèmes ci dessus mentionnes.The object of the present invention is to provide an applicator which solves the above mentioned problems.

Conformément à l'invention, ce résultat est obtenu par l'utilisation de moyens decrits dans la partie charactérisante de la revendication 1. In accordance with the invention, this result is obtained by the use of means described in the section The characterizer of claim 1.

Conformément à un mode préféré de l'invention, la paroi qui permet au solvant de pénétrer dans le volume qui contient l'organe applicateur est un corps de forme générale tubulaire constitué par une matière poreuse obtenue par exemple par frittage, dont une partie peut avantageusement servir à former avec l'organe applicateur, l'obturateur entre la partie du corps de l'applicateur qui contient le produit cosmétique et la partie de ce corps qui, à l'état fermé, contient l'organe applicateur.According to a preferred embodiment of the invention, the wall which allows the solvent to enter the volume which contains the organ applicator is a generally tubular body constituted by a porous material obtained for example by sintering, part of which can advantageously serve to form with the applicator member, the obturator between the part of the body of the applicator which contains the product cosmetic and the part of this body which, when closed, contains the applicator organ.

Il en résulte que cette paroi poreuse est au contact par une de ses faces avec le produit cosmétique ou avec les vapeurs du solvant de ce dernier qui sont à l'intérieur du corps de l'applicateur, ledit solvant migrant à travers de la paroi poreuse pour parvenir dans la partie du corps de l'applicateur qui entoure l'organe applicateur.As a result, this porous wall is in contact by a of its faces with the cosmetic product or with the vapors of the solvent of the latter which are inside the body of the applicator, said solvent migrating through the porous wall to reach the part of the body of the applicator which surrounds the applicator member.

Lors du remplissage de l'applicateur avec le produit cosmétique, il peut être avantageux de saturer la paroi poreuse avec le solvant qui est utilisé dans le produit cosmétique.When filling the applicator with the product cosmetic, it may be advantageous to saturate the porous wall with the solvent which is used in the cosmetic product.

Dans une variante, au lieu d'une paroi poreuse, il est possible d'utiliser une paroi de forme générale cylindrique ou tronconique qui entoure l'organe applicateur et qui est munie de fentes de très faible largeur ou de trous de très faible diamètre qui par capillarité empêchent le passage du produit cosmétique tout en permettant le passage du solvant.Alternatively, instead of a porous wall, it is possible to use a generally cylindrical wall or frustoconical which surrounds the applicator member and which is provided with slots very small width or very small diameter holes which by capillarity prevent the passage of the cosmetic product while allowing the passage of the solvent.

Dans ce mode de réalisation, le volume extérieur à la paroi munie de fentes est relié à la partie du corps de l'applicateur qui contient le produit cosmétique.In this embodiment, the volume outside the wall provided with slots is connected to the part of the body of the applicator which contains the cosmetic product.

Selon un mode de réalisation préféré de l'invention, l'obturateur qui empêche le produit cosmétique contenu dans la partie arrière du corps de l'applicateur de passer dans la partie avant du corps de l'applicateur qui entoure l'organe applicateur, est constitué par une surépaisseur située à la base de l'organe applicateur, qui coopère avec la paroi poreuse ou capillaire qui vient d'être décrite, de manière à ce que, compte-tenu de sa viscosité, le produit cosmétique ne puisse pas s'écouler de la partie du corps de l'applicateur où il est contenu, vers la partie du corps de l'applicateur qui entoure l'organe applicateur.According to a preferred embodiment of the invention, the shutter which prevents the cosmetic product contained in the part back of the applicator body to pass into the front part of the body of the applicator which surrounds the applicator member, is constituted by a extra thickness located at the base of the applicator member, which cooperates with the porous or capillary wall which has just been described, so that that, given its viscosity, the cosmetic product cannot flow from the part of the body of the applicator where it is contained, towards the part of the body of the applicator which surrounds the applicator member.

Conformément à un mode de réalisation préféré de l'invention, l'organe applicateur est prolongé vers l'arrière par une tige présentant un évidement formant tiroir qui, lorsque l'applicateur est ouvert et que l'on déplace l'organe applicateur vers sa position d'utilisation, transfère un volume donné de produit cosmétique dans le volume qui est situé dans la partie avant du corps de l'applicateur, de manière à imprégner l'organe applicateur.In accordance with a preferred embodiment of the invention, the applicator member is extended rearward by a rod having a recess forming a drawer which, when the applicator is open and the applicator member is moved to its position of use, transfers a given volume of cosmetic product into the volume which is located in the front part of the applicator body, so that impregnate the applicator member.

Selon un autre mode de réalisation de l'invention, la tige qui soutient l'organe applicateur est creuse de sorte que la paroi extérieure de la tige peut coopérer avec une partie de la surface de la paroi poreuse pour s'opposer au passage du produit cosmétique du corps de l'applicateur où il est contenu vers le volume qui contient l'organe applicateur tandis que l'on peut provoquer par l'intérieur de la tige l'imprégnation contrôlée de l'organe applicateur avec le produit cosmétique.According to another embodiment of the invention, the rod which supports the applicator member is hollow so that the wall outer of the rod can cooperate with part of the surface of the porous wall to oppose the passage of the cosmetic product from the body of the applicator where it is contained to the volume that contains the organ applicator while one can provoke from inside the rod the controlled impregnation of the applicator member with the product cosmetic.

Dans le but de mieux faire comprendre l'invention, on va en décrire maintenant à titre d'illustration et sans aucun caractère limitatif deux modes de réalisation pris comme exemples et représentés sur le dessin annexé :

  • la figure 1 est une vue en coupe longitudinale d'un applicateur selon un premier mode de réalisation de l'invention, en position de non utilisation,
  • la figure 2 est une vue correspondant à la figure 1, après enlèvement du bouchon et en position d'utilisation,
  • la figure 3 représente une vue en coupe longitudinale d'un applicateur selon un deuxième mode de réalisation de l'invention,
  • la figure 4 est une coupe selon IV-IV de la figure 1,
  • la figure 5 est une vue en coupe selon V-V de la figure 3, et
  • la figure 6 est une vue en coupe longitudinale d'un applicateur selon un troisième mode de réalisation de l'invention.
In order to better understand the invention, we will now describe by way of illustration and without any limitation being two embodiments taken as examples and shown in the accompanying drawing:
  • FIG. 1 is a view in longitudinal section of an applicator according to a first embodiment of the invention, in the position of non-use,
  • FIG. 2 is a view corresponding to FIG. 1, after removing the plug and in the position of use,
  • FIG. 3 represents a view in longitudinal section of an applicator according to a second embodiment of the invention,
  • FIG. 4 is a section on IV-IV of FIG. 1,
  • FIG. 5 is a sectional view along VV of FIG. 3, and
  • Figure 6 is a longitudinal sectional view of an applicator according to a third embodiment of the invention.

Dans la description qui va suivre, on désigne l'extrémité de l'applicateur qui est obturé par le bouchon sous le terme de partie avant de l'applicateur, l'autre extrémité étant désignée sous le terme de partie arrière. In the description which follows, the end of the applicator which is closed by the cap under the term of front part of the applicator, the other end being referred to as rear part.

De plus, les dessins représentent l'applicateur en position horizontale, mais il est clair que lors de son utilisation, l'applicateur peut être disposé dans toutes les positions.In addition, the drawings show the applicator in position horizontal, but it is clear that when in use, the applicator can be placed in any position.

Pour cette raison, le produit cosmétique contenu à l'intérieur de l'applicateur n'a pas été représenté, car sa position dépend essentiellement de la position de l'applicateur et de l'agitation qui a été préalablement communiquée à ce dernier.For this reason, the cosmetic product contained in the interior of the applicator has not been shown, because its position essentially depends on the position of the applicator and the agitation which was previously communicated to the latter.

On a représenté sur les figures 1 et 2, un premier mode de réalisation de l'applicateur selon l'invention.There is shown in Figures 1 and 2, a first mode of realization of the applicator according to the invention.

On voit sur ces figures le corps d'un applicateur qui est constitué par une partie arrière 1 constituant le réservoir de produit cosmétique et par une partie avant 2 qui est munie à son extrémité d'une ouverture.We see in these figures the body of an applicator which is consisting of a rear part 1 constituting the product reservoir cosmetic and by a front part 2 which is provided at its end with a opening.

Le produit cosmétique se trouve donc dans le volume 3 situé à l'intérieur de la partie arrière 1 de l'applicateur. Ce volume 3 contient à la manière connue une bille métallique 4 destinée à servir d'agitateur pour permettre une homogénéisation du produit cosmétique lorsque cela est nécessaire.The cosmetic product is therefore in volume 3 located at inside the rear part 1 of the applicator. This volume 3 contains in known manner a metal ball 4 intended to serve as an agitator to allow homogenization of the cosmetic product when this is necessary.

Un bouchon 5 qui s'engage par un filetage 6 sur la partie avant 2 du corps de l'applicateur permet d'obturer l'orifice terminal de cette dernière.A plug 5 which engages by a thread 6 on the part front 2 of the applicator body makes it possible to close the terminal orifice of the latter.

L'organe applicateur est constitué par un pinceau 7 muni à sa base d'un renflement 8 dont l'utilité sera décrite ultérieurement. Le pinceau 7 est supporté par une tige 9 elle-même reliée à une glissière cruciforme 10 dont l'autre extrémité supporte un contrepoids 11.The applicator member is constituted by a brush 7 provided at its base of a bulge 8, the usefulness of which will be described later. The brush 7 is supported by a rod 9 itself connected to a slide cruciform 10 whose other end supports a counterweight 11.

Dans d'autres modes de réalisation, la forme de la glissière peut être différente, par exemple carrée, rectangulaire ou cylindrique.In other embodiments, the shape of the slide can be different, for example square, rectangular or cylindrical.

La glissière cruciforme 10 coulisse dans un orifice de forme correspondante située dans une douille 12 qui, à sa base 13, est rendue solidaire de la partie arrière 1 du corps de l'applicateur par un moyen quelconque tel que par collage.The cross slide 10 slides in a shaped hole corresponding located in a socket 12 which, at its base 13, is returned secured to the rear part 1 of the body of the applicator by a means any such as by gluing.

Des ouvertures 14 réalisées dans la paroi de la douille 12 permettent un libre passage du produit cosmétique entre le volume 3 et le volume 15 situé à l'intérieur de la douille 12.Openings 14 made in the wall of the socket 12 allow free passage of the cosmetic product between volume 3 and volume 15 located inside the socket 12.

Les parties arrière 1 et avant 2 du corps de l'applicateur sont reliées entre elles en 16 de manière étanche, par exemple par collage. The rear 1 and front 2 parts of the applicator body are interconnected at 16 in a sealed manner, for example by collage.

Conformément à l'invention, on a disposé à l'intérieur de la partie avant 2 du corps de l'applicateur, une paroi poreuse 17 qui, vers l'avant, délimite un volume 18 dans lequel se trouve située la partie avant du pinceau 7. Cette paroi poreuse peut être obtenue par exemple par frittage, par agglomération de fibres, ou être constituée par une mousse.In accordance with the invention, the interior of the front part 2 of the body of the applicator, a porous wall 17 which, towards the front, delimits a volume 18 in which is located the part before the brush 7. This porous wall can be obtained for example by sintering, by agglomeration of fibers, or be constituted by a foam.

Entre le volume 18 et le volume 15 de la douille 12, la paroi poreuse 17 présente un diamètre 19 qui est supérieur au diamètre du renflement 8 qui est situé à la base du pinceau 7.Between the volume 18 and the volume 15 of the socket 12, the wall porous 17 has a diameter 19 which is greater than the diameter of the bulge 8 which is located at the base of the brush 7.

Les dimensions relatives du renflement 8 et de la partie 19 de la paroi poreuse sont telles que l'applicateur peut se déplacer librement entre la position fermée et la position ouverte malgré la viscosité du produit cosmétique, alors que ce dernier ne peut pas sensiblement passer des volumes 3 et 15 vers le volume 18 lorsque l'applicateur est en position fermée, en constituant ainsi un obturateur pour le produit cosmétique.Relative dimensions of bulge 8 and part 19 of the porous wall are such that the applicator can move freely between the closed position and the open position despite the viscosity of the cosmetic product, whereas the latter cannot substantially move from volumes 3 and 15 to volume 18 when the applicator is in the closed position, thus constituting a shutter for the cosmetic product.

On retrouve sur la figure 4, une représentation de la glissière cruciforme 10 qui coulisse dans un orifice de forme correspondante pratiquée dans le fond de la douille 12.We find in Figure 4, a representation of the cross slide 10 which slides in a shaped hole corresponding practiced in the bottom of the socket 12.

On voit également sur la figure 4 comment de larges orifices 14 situés dans la partie cylindrique de la douille 12 permettent le libre passage du produit cosmétique du volume 3 vers le volume 15 qui est situé à l'intérieur de la douille 12.We also see in Figure 4 how large orifices 14 located in the cylindrical part of the socket 12 allow free passage of the cosmetic product from volume 3 to volume 15 which is located inside the socket 12.

On retrouve les différentes pièces qui viennent d'être décrites sur la figure 2 dans laquelle le bouchon 5 a été enlevé tandis que l'organe applicateur constitué par le pinceau 7 a été déplacé vers l'extérieur.We find the different pieces that have just been described in Figure 2 in which the plug 5 has been removed while that the applicator member constituted by the brush 7 has been moved towards outside.

Ce déplacement peut s'effectuer à la manière connue, en agitant axialement l'applicateur, le pinceau 7 pouvant être amené soit en position sortie, soit en position rentrée, en raison de l'inertie du contrepoids 11 auquel il est relié.This displacement can be carried out in the known manner, by shaking the applicator axially, the brush 7 being able to be brought either extended position, or retracted position, due to the inertia of the counterweight 11 to which it is connected.

On suppose que, dans le cas de la figure 1, l'applicateur est neuf et que le produit cosmétique se trouve en totalité à l'intérieur de la partie arrière 1 du corps de l'applicateur, c'est-à-dire dans les volumes 3 et 15.It is assumed that, in the case of FIG. 1, the applicator is new and that the cosmetic product is completely inside the rear part 1 of the body of the applicator, that is to say in the volumes 3 and 15.

Lorsqu'après avoir enlevé le bouchon 5, on déplace brusquement l'applicateur vers la droite, le pinceau 7 sort de la partie avant du corps 2 de l'applicateur comme représenté sur la figure 2 en raison de l'inertie du contrepoids 11.When, after removing the plug 5, we move suddenly the applicator to the right, the brush 7 comes out of the part front of the body 2 of the applicator as shown in Figure 2 in reason for the inertia of the counterweight 11.

Lors de ce mouvement, le produit cosmétique qui est situé autour de la tige 9 qui présente un diamètre sensiblement plus faible que ceux du renflement 8 situé à la base du pinceau et de la glissière cruciforme 10, se trouve entraíné à l'intérieur du volume 18 où une quantité dosée de produit cosmétique se répand aussi.During this movement, the cosmetic product which is located around the rod 9 which has a diameter substantially smaller than those of the bulge 8 located at the base of the brush and the slide cruciform 10, is entrained inside the volume 18 where a dosed amount of cosmetic product also spreads.

Si l'on déplace l'applicateur vers la gauche d'un mouvement brusque, l'inertie du contrepoids 11 provoque le passage du pinceau 7 dans la position de la figure 1 en l'amenant au contact de la composition cosmétique qui a été préalablement introduite dans le volume 18 comme cela vient d'être expliqué.If you move the applicator to the left with one movement abrupt, the inertia of the counterweight 11 causes the brush 7 to pass in the position of Figure 1 by bringing it into contact with the composition cosmetic which was previously introduced in volume 18 as this has just been explained.

La butée 10a qui est située à l'extrémité avant de la glissière cruciforme 10 limite le déplacement vers l'arrière de l'organe applicateur.The stop 10 a which is located at the front end of the cruciform slide 10 limits the rearward movement of the applicator member.

Un nouveau mouvement brusque de l'applicateur vers la droite provoque une nouvelle sortie du pinceau 7, qui est cette fois imprégné du produit cosmétique qui peut alors être appliqué par l'utilisateur.A new sudden movement of the applicator to the right causes a new exit of the brush 7, which is this time impregnated with cosmetic product which can then be applied by the user.

On comprend ainsi comment il est possible d'amener successivement sur le pinceau des quantités données de produit cosmétique au fur et à mesure des besoins.We thus understand how it is possible to bring successively on the brush of the given quantities of cosmetic product as needed.

Conformément à un mode de réalisation de l'invention, le volume 18 est délimité par une paroi poreuse 17 dont la partie arrière débouche sur le volume 15 et se trouve de ce fait au contact avec le produit cosmétique.In accordance with one embodiment of the invention, the volume 18 is delimited by a porous wall 17 whose rear part leads to volume 15 and is therefore in contact with the cosmetic product.

Lorsque l'application du produit cosmétique est terminée, on ramène le pinceau 7 à l'intérieur de la cavité 18 que l'on obture avec le bouchon 5.When the application of the cosmetic product is finished, we brings the brush 7 inside the cavity 18 which is closed with the cap 5.

Comme cela a été expliqué précédemment, le pinceau 7 contient encore une certaine quantité de produit cosmétique dont la viscosité a augmenté en raison d'un début d'évaporation du solvant que contient le produit cosmétique lors de l'application de ce dernier.As explained above, the brush 7 contains still a certain amount of cosmetic product whose viscosity has increased due to the beginning of evaporation of the solvent contained in the cosmetic product when applying the latter.

Mais conformément à l'invention, la paroi 17 est perméable au solvant de telle sorte que ce dernier qui est contenu en plus grande quantité dans le produit cosmétique présent dans les chambres 3 et 15 diffuse à travers la paroi 17 pour venir dans le volume 18 où il se dissout dans la composition cosmétique qui est restée sur le pinceau 7. But according to the invention, the wall 17 is permeable to solvent so that the latter which is contained in larger amount in the cosmetic product present in rooms 3 and 15 diffuses through the wall 17 to come into the volume 18 where it dissolved in the cosmetic composition which remained on the brush 7.

Cette dissolution empêche le produit cosmétique résiduel qui se trouve sur le pinceau 7 ou dans le volume 18, de durcir du fait qu'il se trouve en présence de son solvant exactement dans les mêmes conditions que le produit cosmétique qui se trouve dans les volumes 3 et 15.This dissolution prevents the residual cosmetic product which is on the brush 7 or in the volume 18, to harden because it is in the presence of its solvent under exactly the same conditions than the cosmetic product found in volumes 3 and 15.

L'équilibre entre le produit cosmétique et son solvant se rétablit ainsi dans la chambre 18 ce qui évite une accumulation de produit cosmétique fortement visqueux ou même solidifié, sur le pinceau 7 et sur la paroi du volume 18.The balance between the cosmetic product and its solvent is thus restores in chamber 18 which prevents an accumulation of highly viscous or even solidified cosmetic product, on the brush 7 and on the wall of volume 18.

Conformément à l'invention, il est avantageux de réaliser également le renflement 8 qui est à la base du pinceau 7 à l'aide d'une matière poreuse, qui, comme la paroi 17, laisse passer le solvant du produit cosmétique de manière à faciliter encore le passage dudit solvant vers le pinceau 7 et le volume 18.In accordance with the invention, it is advantageous to carry out also the bulge 8 which is at the base of the brush 7 using a porous material, which, like wall 17, lets the solvent through cosmetic product so as to further facilitate the passage of said solvent towards brush 7 and volume 18.

Dans le mode de réalisation de la figure 3, la paroi poreuse 17 est remplacée par une pièce 20 constituée par deux parois 21a et 21b qui délimitent entre elles un volume annulaire 21 qui est en communication avec les volumes 15 et 3 qui ont été précédemment décrits.In the embodiment of FIG. 3, the porous wall 17 is replaced by a part 20 constituted by two walls 21 a and 21 b which delimit between them an annular volume 21 which is in communication with the volumes 15 and 3 which have been previously described.

La paroi intérieure 21b est munie de fentes longitudinales 22 de faible largeur qui, par leur dimension, permettent le passage du solvant contenu dans le produit cosmétique mais qui empêchent que, par capillarité, ce dernier les traverse.The inner wall 21 b is provided with longitudinal slots 22 of small width which, by their size, allow the passage of the solvent contained in the cosmetic product but which prevent it from passing through them by capillary action.

On voit que la pièce 20 joue le même rôle que la paroi poreuse 17 en assurant le passage du solvant des volumes 15 et 3 vers le volume 18 dans lequel le produit cosmétique résiduel ne doit pas s'épaissir, tout en empêchant le produit cosmétique qui est conservé dans les volumes 3 et 15 de pénétrer dans le volume 18.We see that the part 20 plays the same role as the wall porous 17 by ensuring the passage of the solvent from volumes 15 and 3 to the volume 18 in which the residual cosmetic product must not thicken, while preventing the cosmetic product that is kept in volumes 3 and 15 to enter volume 18.

On retrouve sur la figure 5 qui est une vue en coupe selon V-V de la figure 3, le bouchon 5, la partie avant 2 de l'applicateur, les parois 21a et 21b qui délimitent le volume annulaire 21.In FIG. 5 which is a sectional view along VV of FIG. 3, we find the plug 5, the front part 2 of the applicator, the walls 21 a and 21 b which delimit the annular volume 21.

On y voit également les fentes de faibles épaisseurs 22 qui sont pratiquées dans la paroi 21b de manière à permettre le passage du solvant mais pas celui du produit cosmétique.We also see the thin slots 22 which are formed in the wall 21b so as to allow the passage of the solvent but not that of the cosmetic product.

Selon le troisième mode de réalisation de la figure 6, l'organe applicateur est constitué par un pinceau 7 supporté par une tige 9a qui est creuse et dont l'orifice intérieur 9b fait communiquer le pinceau 7 avec le volume 3 du corps 1 par l'intermédiaire d'une partie élargie 23 qui comporte une lèvre circulaire 24 sur laquelle vient prendre appui une bille 25 repoussée par un ressort 26 pour former une valve.According to the third embodiment of Figure 6, the applicator member is constituted by a brush 7 supported by a rod 9a which is hollow and whose internal orifice 9b communicates the brush 7 with the volume 3 of the body 1 by by means of an enlarged part 23 which has a circular lip 24 on which a ball 25 is pushed back by a spring 26 to form a valve.

On comprend dans ces conditions, que lorsque le bouchon 5 est enlevé, on peut, en écrasant légèrement le corps souple 1 de l'applicateur faire sortir le pinceau 7, repousser la bille 25 et alimenter le pinceau avec le produit cosmétique qui s'écoule dans l'orifice 9b de la tige 9.We understand under these conditions, that when the plug 5 is removed, we can, by slightly crushing the flexible body 1 of the applicator bring out the brush 7, push the ball 25 and feed the brush with the cosmetic product that flows in hole 9b of rod 9.

Dans une variante, on fait varier le volume 3 du corps de l'applicateur, en le constituant en deux parties mobiles l'une par rapport à l'autre.In a variant, the volume 3 of the body is varied the applicator, constituting it in two mobile parts, one by compared to each other.

Un contrepoids 11a en forme d'anneau permet par inertie de faire entrer ou sortir le pinceau 7.A counterweight 11 a in the form of a ring allows inertia to bring the brush 7 in or out.

On voit également sur la figure 6 comment la surface extérieure de la tige 9a coopère avec la surface 19 de la paroi poreuse 17 pour empêcher le produit cosmétique de s'écouler des volumes 3 et 15 vers le volume 18.Also shown in Figure 6 how the outer surface of the rod 9a cooperates with the surface 19 of the porous wall 17 to prevent the cosmetic product to flow volumes 3 and 15 to 18 volume.

Le transfert du solvant des volumes 15 et 3 vers le volume 18 n'implique pas que lors de ce transfert le solvant reste à l'état liquide ou à l'état gazeux. Cependant, compte-tenu de sa volatilité qui permet un séchage relativement rapide du produit cosmétique, le solvant traverse généralement la paroi sous forme de vapeur de manière à équilibrer sa tension de vapeur entre tous les volumes qui sont à l'intérieur du corps du récipient.Transfer of the solvent from volumes 15 and 3 to volume 18 does not imply that during this transfer the solvent remains in the liquid state or in the gaseous state. However, given its volatility which allows a relatively quick drying of the cosmetic product, the solvent passes through generally the wall in the form of vapor so as to balance its vapor pressure between all the volumes that are inside the body of the container.

Il est bien entendu que les modes de réalisation décrits ne présentent aucun caractère limitatif et qu'ils pourront recevoir toutes modifications désirables sans sortir pour cela du cadre de l'invention dont la caractéristique essentielle est constituée par la mise en communication du volume qui contient l'organe applicateur à l'état formé avec le volume qui contient le produit cosmétique de manière telle que ce dernier ne peut s'écouler vers le volume qui contient l'organe applicateur alors que son solvant peut passer de la partie de l'applicateur qui contient le produit cosmétique vers celle qui contient l'organe applicateur en empêchant ainsi que le produit cosmétique qui reste sur ou qui entoure l'organe applicateur s'épaississe et durcisse.It is understood that the embodiments described do not have no limiting nature and that they can receive all desirable modifications without departing from the scope of the invention whose essential characteristic is constituted by the implementation communication of the volume which contains the applicator member in the formed state with the volume that contains the cosmetic product in such a way that it the latter cannot flow to the volume that contains the organ applicator while its solvent can pass from the part of the applicator that contains the cosmetic product to the one that contains the applicator organ thereby preventing as well as the cosmetic product which remains on or around the applicator member thickens and hardens.

En particulier, il est clair que l'organe applicateur peut être réalisé autrement que sous la forme d'un pinceau, par exemple à l'aide d'un organe poreux ou muni de cannelures longitudinales fines capables de retenir le produit cosmétique par capillarité. Cet organe applicateur peut-être également par exemple en mousse ou en une matière plastique frittée ou encore obtenu par flocage.In particular, it is clear that the applicator member can be carried out other than in the form of a brush, for example using a porous organ or one provided with fine longitudinal grooves capable of retaining the cosmetic product by capillarity. This organ applicator may also be for example made of foam or a material plastic sintered or obtained by flocking.

De même, il est possible de réaliser différemment l'obturateur qui empêche à l'état fermé le produit cosmétique contenu à l'arrière du corps de l'applicateur de se déplacer pour venir dans le volume avant dans lequel se trouve l'organe applicateur.Likewise, it is possible to achieve differently the shutter which prevents the cosmetic product contained in the closed state the back of the applicator body to move to come into the front volume in which the applicator member is located.

Enfin, il va de soi que l'invention peut également être appliqué à un applicateur de produit autre qu'un produit cosmétique mais qui présenterait les mêmes caractéristiques de viscosité et de solvant.Finally, it goes without saying that the invention can also be applied to a product applicator other than a cosmetic product but which would have the same viscosity and solvent characteristics.

Claims (10)

  1. Applicator for a viscous cosmetic product such as a nail polish, of the type comprising an applicator body constituting a reservoir for the cosmetic product, this body containing an applicator member which can be moved between a closed position in which the applicator member is completely engaged inside the body, and an open position in which the applicator member projects from the body of the applicator which can be sealed by a cap when the applicator member is inside it, in the closed state a stopper prevents the cosmetic product contained in the part (1) of the body of the applicator which constitutes the reservoir (3) from being able, given its viscosity, to flow towards the part (2) of the body of the applicator which is sealed by the cap (5) and which contains the applicator member (7), the said applicator being characterized in that the part (1) of the body of the applicator which contains the cosmetic product is connected to the part (2) of the body of the applicator which is sealed by the cap (5) and which contains the applicator member (7) by a wall (17) which prevents cosmetic product from flowing but which allows the solvent contained in the cosmetic product to flow so that, in the closed position, this solvent can spread out in the volume (18) surrounding the applicator member (7) and oppose the hardening or increase in viscosity of the cosmetic product present on the applicator member (7) and/or on the wand and/or on the walls of the volume (18) surrounding it.
  2. Applicator according to Claim 1, characterized in that the wall (17) is arranged around the applicator member (7) in its retracted position.
  3. Applicator according to Claim 2, characterized in that the rear part of the wall (17), together with a bulge (8) integral with the applicator member (7), forms the stopper between the rear part (1) of the body of the applicator which contains the cosmetic product and the front part (2) of this body which, in the closed state, contains the applicator member (7).
  4. Applicator according to Claim 2, characterized in that the rear part of the wall (17), together with the surface of a wand (9a) integral with the applicator member (7), forms the stopper between the rear part of the body of the applicator which contains the cosmetic product and the front part (2) of this body which, in the closed state, contains the applicator member (7).
  5. Applicator according to any one of the preceding claims, characterized in that the wall (17) is a porous wall obtained, for example, by sintering or by an agglomeration of fibres.
  6. Applicator according to one of Claims 1 to 4, characterized in that the wall (17) consists of a solid wall (21b) with capillary slots (22) of very narrow width or with holes of very small diameter.
  7. Applicator according to any one of the preceding claims, characterized in that the applicator member (7) is extended by a wand which has a recess forming a slide valve so that when the applicator is opened and the applicator member (7) is moved into its position of use, a given volume of cosmetic product is transferred towards the volume (18) which lies close to the opening of the applicator so as to impregnate the applicator member (7).
  8. Applicator according to any one of Claims 1 to 6, characterized in that the applicator member is supported by a hollow wand 9a which, via a valve (24, 25, 26), allows the applicator member (7) to be supplied with cosmetic product by reducing the volume (3) of the body of the applicator, for example by deforming it.
  9. Applicator according to any one of Claims 3, 5, 6 or 7, characterized in that the bulge (8) situated at the base of the applicator member (7) is made of a porous material.
  10. Applicator according to any one of the preceding claims, characterized in that the applicator member is a brush (7).
EP96400056A 1995-01-11 1996-01-10 Application for viscous cosmetic products, particularly nail polish Expired - Lifetime EP0721748B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9500251A FR2729060A1 (en) 1995-01-11 1995-01-11 APPLICATOR FOR VISCOUS COSMETICS IN PARTICULAR FOR NAIL VARNISH
FR9500251 1995-01-11

Publications (2)

Publication Number Publication Date
EP0721748A1 EP0721748A1 (en) 1996-07-17
EP0721748B1 true EP0721748B1 (en) 1999-06-16

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EP96400056A Expired - Lifetime EP0721748B1 (en) 1995-01-11 1996-01-10 Application for viscous cosmetic products, particularly nail polish

Country Status (12)

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US (1) US5735623A (en)
EP (1) EP0721748B1 (en)
JP (1) JP2755934B2 (en)
CN (1) CN1066327C (en)
AR (1) AR000651A1 (en)
AT (1) ATE181217T1 (en)
BR (1) BR9600050A (en)
CA (1) CA2166580C (en)
DE (1) DE69602855T2 (en)
ES (1) ES2133903T3 (en)
FR (1) FR2729060A1 (en)
MX (1) MX9600163A (en)

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EP1702531A2 (en) 2005-03-15 2006-09-20 L'oreal Storing and applying device for a cosmetic product
US7467906B2 (en) 2005-03-15 2008-12-23 L'oreal Packaging and applicator device for a cosmetic composition

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FR2761959B1 (en) 1997-04-15 1999-05-21 Oreal PACKAGING AND APPLICATION ASSEMBLY OF A FLUID PRODUCT
US6530709B1 (en) 2000-11-30 2003-03-11 Pamela D. Washington Nail polish applicator
US7059796B2 (en) * 2002-04-17 2006-06-13 Avery Dennison Corporation Self-sealing retractable writing instrument
US20060273136A1 (en) * 2004-09-15 2006-12-07 Bachman Helmuth G Agitator for mixing hair coloring dye
FR2882506B1 (en) 2005-02-25 2007-05-18 Oreal MAKE-UP PROCESS USING A VIBRANT APPLICATOR
US7607852B2 (en) 2006-03-02 2009-10-27 Washington Pamela D Liquids applicator
FR2899075B1 (en) * 2006-03-31 2008-11-21 Oreal APPLICATOR AND DEVICE FOR PACKAGING AND APPLICATION.
KR100897854B1 (en) * 2007-09-12 2009-05-15 주식회사 케미코스 Tool for applying liquid cosmetic material
US8215858B2 (en) 2008-03-20 2012-07-10 Craig Carroll Toggling cosmetic lacquer dispenser and delivery
US8231295B2 (en) * 2008-03-27 2012-07-31 Steve Armstrong Toggling cosmetic lacquer dispenser and delivery
US8353637B2 (en) * 2009-02-24 2013-01-15 Craig Carroll Toggling cosmetic substance dispenser
US9642438B2 (en) * 2014-05-23 2017-05-09 Man Su Choi Cosmetic container
FR3035307B1 (en) * 2015-04-23 2018-10-26 Albea Services RECEPTACLE, IN PARTICULAR FLACONNETTE FOR RECEIVING A COSMETIC PRODUCT
ITUA20163271A1 (en) * 2016-05-09 2017-11-09 Giorgio Olivetti BRUSH APPLICATOR
CN106377048A (en) * 2016-11-30 2017-02-08 洽兴包装工业（中国）有限公司 Device for coating cosmetics
JP7118819B2 (en) 2017-10-23 2022-08-16 株式会社コーセー cosmetic applicator

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Publication number Priority date Publication date Assignee Title
EP1702531A2 (en) 2005-03-15 2006-09-20 L'oreal Storing and applying device for a cosmetic product
FR2883139A1 (en) 2005-03-15 2006-09-22 Oreal DEVICE FOR PACKAGING AND APPLYING A COSMETIC PRODUCT
US7467906B2 (en) 2005-03-15 2008-12-23 L'oreal Packaging and applicator device for a cosmetic composition

Also Published As

Publication number Publication date
DE69602855T2 (en) 2000-01-13
AR000651A1 (en) 1997-07-10
FR2729060A1 (en) 1996-07-12
MX9600163A (en) 1997-01-31
FR2729060B1 (en) 1997-02-14
JPH08224121A (en) 1996-09-03
CA2166580C (en) 2004-12-21
BR9600050A (en) 1998-01-21
EP0721748A1 (en) 1996-07-17
CN1134802A (en) 1996-11-06
CN1066327C (en) 2001-05-30
ATE181217T1 (en) 1999-07-15
US5735623A (en) 1998-04-07
ES2133903T3 (en) 1999-09-16
JP2755934B2 (en) 1998-05-25
CA2166580A1 (en) 1996-07-12
DE69602855D1 (en) 1999-07-22

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