EP0832577A1 - Powder applicator and process of manufacturing the same - Google Patents

Powder applicator and process of manufacturing the same Download PDF

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Publication number
EP0832577A1
EP0832577A1 EP97401863A EP97401863A EP0832577A1 EP 0832577 A1 EP0832577 A1 EP 0832577A1 EP 97401863 A EP97401863 A EP 97401863A EP 97401863 A EP97401863 A EP 97401863A EP 0832577 A1 EP0832577 A1 EP 0832577A1
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EP
European Patent Office
Prior art keywords
powder
product
applicator
support
mixture
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP97401863A
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German (de)
French (fr)
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EP0832577B1 (en
Inventor
Jean-Louis M. 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
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LOreal SA
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Publication date
Application filed by LOreal SA filed Critical LOreal SA
Publication of EP0832577A1 publication Critical patent/EP0832577A1/en
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Classifications

    • 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
    • A45D33/00—Containers or accessories specially adapted for handling powdery toiletry or cosmetic substances
    • A45D33/34—Powder-puffs, e.g. with installed container
    • 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
    • A45D40/00—Casings or accessories specially adapted for storing or handling solid or pasty toiletry or cosmetic substances, e.g. shaving soaps or lipsticks
    • A45D40/0087—Casings or accessories specially adapted for storing or handling solid or pasty toiletry or cosmetic substances, e.g. shaving soaps or lipsticks for samples
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S206/00—Special receptacle or package
    • Y10S206/823—Cosmetic, toilet, powder puff
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/23907—Pile or nap type surface or component
    • Y10T428/23943—Flock surface

Definitions

  • the invention relates to product applicators, in particular for the care and topical skin treatment, including make-up, skin, nails, hair and mucous membranes.
  • the invention relates in particular to an applicator for powder products, ready to use, easy to handle, single use and with an efficiency at least equivalent to that of traditional products.
  • the invention relates to an easy and economical device to produce, as well as a process for obtaining the applicator according to the invention.
  • the invention can be applied in particular as a tester or sample of cosmetic products, such as skincare or make-up powders (shades, eye shadows, blush, kohl, liner, dark circles or wrinkle eraser, etc.) or as sold products in doses, easy to transport.
  • a powder 12 of a cosmetic, dermatological or pharmaceutical, water-soluble or water-emulsifiable the two plates 11 being held together by at least one weld in the vicinity or on their periphery.
  • such a system is not entirely satisfactory in that it presents a restrained restitution of the powder through the meanders of the cells making up the foam.
  • a product applicator in powder characterized in that it comprises a support of which at least part of the surface is covered with a flocking composed of a mixture of fibers of coating and powder of said product to be applied.
  • the powder could be deposited on the support of the same way as the covering fibers, namely, advantageously, by electrostatic deposit.
  • the powder thus deposited is an integral part of the flocking covering the applicator. This reduces the cost of the applicator by depositing, one and the same step, both the coating fibers and the product to apply.
  • the powder on the applicator during transport is significantly improved.
  • the transfer of the powder, when it is applied to a surface to be treated is remarkable, thus achieving a homogeneous application.
  • the mixture comprises between 0.1 and 40% of powder of said product, and preferably between 5% and 20% powder.
  • the support may consist of a paper / textile material, plastic, elastomer, or cellular.
  • the fibers are fibers of nylon, cotton, rayon, polyamide, or polyester, or any mixture of these different categories.
  • the invention also relates to a method for manufacturing an applicator for powder product consisting in applying by flocking, on at least part of the surface of a support, a mixture of coating fibers and powder of said product to apply.
  • the product powder is a powder encapsulated with pigments.
  • a powder encapsulated with pigments By way of example, a polyethylene powder coated with polyurethane, and pigments, or a talcum powder coated with urea formaldehyde and pigments.
  • the powder can be porous and impregnated with agents making it electrostatic.
  • the powder can consist at least partly of a non-mineral powder of Rilsan® type (polyamide 11 powder) or Expansel®.
  • an assembly is also produced application of a powdered product characterized in that it comprises a applicator according to the invention.
  • Such an application assembly may include an applicator, one end of which carries an applicator member formed on a support, the other end forming gripping means, a cover being provided so as to enclose so waterproof at least said applicator member.
  • the applicator according to the invention was born from the observation that so surprisingly, a powder particle could be treated in the same way than a fiber (or hair) and be applied advantageously on a support by the same flocking technique.
  • FIG. 2a illustrates a sectional view longitudinal of a first embodiment of the applicator 1 according to the invention.
  • This mainly comprises a central core 2, acting as a support and may have different shapes, lengths, thicknesses.
  • the support is elongated, substantially tapered in one of its ends.
  • the support can be made of plastic, elastomeric material, cellular, sintered, textile / paper or any other suitable material. It features on at at least part of its surface, an area of application 6 of the product obtained according to the invention by flocking a mixture of fibers 3 and powder 4. As well as shown, the fibers are essentially oriented perpendicular to the surface of the support to which they adhere via a layer of glue 5.
  • the powder particles 4 are themselves deposited on the support during of the same flocking operation, 2. Most of the powder particles are located at the base of the fibers on the support, along which they can go up substantially to their end.
  • the fibers are chosen so to promote the attachment of the powder. For example, depending on the powder to load on the applicator, we will use nylon, rayon, polyamide fibers, polyester, etc., or any mixture of such fibers.
  • one end 7 of the support is bare of way to define a grip zone by a user, or attachment by any appropriate body.
  • the layout and size of the gripping / application is defined in an industrial process, for example, at using well known masking techniques.
  • the applicators according to the invention can also be mounted on a handle 30, or any other gripping means allowing its use to be favored.
  • the applicator may include a cover 31 capable of covering at least the portion containing the powder.
  • a cover advantageously appears under form of a sleeve closed at one of its ends, and the internal wall of which substantially matches the shape of the applicator.
  • the cover can then be mounted on the applicator, either by screwing, or by means of a cooperating annular bead with an annular groove on the applicator.
  • Sealing means 32 can be provided to allow a tight packaging of the product.
  • the powder may be of identical color to the color of the fibers of coating, or different color.
  • the mixture applied by flocking on the support comprises 0.1% to 40% powder, and preferably from 5% to 20% powder.
  • the powder particles have an average size of between 0.5 and 500 ⁇ m, and preferably between 10 ⁇ m and 100 ⁇ m.
  • Such a powder may contain active agents, fatty substances, super absorbents of humidity or fat.
  • the powder can consist of a dehydrated emulsion.
  • skincare powders shades, products like eye shadows, blush, etc.
  • Figure 2b shows a variant of the embodiment of Figure 2a and is distinguishes from the latter in that the hairs in which the powder have different lengths.
  • fibers of different natures and / or diameters thus making it possible to play on the smoothness of the application, on the quantity of powder loaded on the applicator, etc.
  • the localized loose powder essentially at the base of the hairs and along them can be applied to the desired surface.
  • Figures 3a-3c illustrate a preferred embodiment of the method according to the invention.
  • the support 2 is transported by a suitable mechanism 20 at a liquid adhesive bath 21, in which the application area of the applicator is soaked.
  • a suitable mechanism 20 for example, we use a monomer, acrylic, vinyl, water-based or solvent-based adhesive.
  • the adhesive coating of the support is carried out by spraying. (spraying).
  • the fiber / powder mixture is treated (electrically charged) with so that it can be applied electrostatically. According to the percentage of powder to be applied, just treat the fiber coating (flock), or both the powder and the flock.
  • the powder can be made suitable for loading electrostatically, for example by coating particles, binders, or pigments capable of being loaded.
  • the mixture obtained is kept under stirring by suitable stirring means, however adjusted so as not to significantly affect the electrostatic charge of the mixture.
  • the fiber / powder mixture 3, 4 is applied on the coated part of the support 2 by application of an electrostatic field.
  • the particles constituting the mixture are suspended in the air and are deposited on the impregnated surface of the applicator by electrostatic attraction. Thereby, in the majority of cases, these particles orient themselves in a substantially perpendicular to the impregnated surface.
  • an applicator can be packaged in thermoformed trays, with an opening seal, or in the form of individual sachets.
  • an applicator of substantially longitudinal shape of the feather type or mine
  • gripper devices criterium type

Abstract

An applicator (1), designed for once-only use, comprises a base layer (2) with at least part of its surface covered by flocking with a mixture of fibres (3) and the powder (4) to be applied, with the powder comprising 0.1 - 40 % of the mixture, and preferably 5-20%. The base layer of the applicator is made from a plastic or elastomer material, a textile/paper or cellular substance. The fibres are of nylon, cotton, rayon, polyamide or polyester, or a mixture of these in different lengths and diameters. Part of the base layer is left free of fibres for holding.

Description

L'invention concerne des applicateurs de produits, notamment, pour le soin et le traitement topique de la peau, y compris le maquillage, de la peau, des ongles, des cheveux et des muqueuses. L'invention vise en particulier un applicateur de produits en poudre, prêt à l'emploi, facile à manipuler, à usage unique et possédant une efficacité au moins équivalente à celle des produits traditionnels. En outre, l'invention vise un dispositif facile et économique à réaliser, ainsi qu'un procédé d'obtention de l'applicateur selon l'invention. L'invention peut être appliquée notamment comme testeur ou échantillon de produits cosmétiques, tels que des poudres de soin ou de maquillage (teintes, ombres à paupières, blush, kohl, liner, effaceur de cernes ou de rides, etc.) ou tels que des produits vendus en dose, faciles à transporter.The invention relates to product applicators, in particular for the care and topical skin treatment, including make-up, skin, nails, hair and mucous membranes. The invention relates in particular to an applicator for powder products, ready to use, easy to handle, single use and with an efficiency at least equivalent to that of traditional products. In addition, the invention relates to an easy and economical device to produce, as well as a process for obtaining the applicator according to the invention. The invention can be applied in particular as a tester or sample of cosmetic products, such as skincare or make-up powders (shades, eye shadows, blush, kohl, liner, dark circles or wrinkle eraser, etc.) or as sold products in doses, easy to transport.

Il est connu de réaliser des échantillons de produits cosmétiques notamment, à partir de bandes adhésives sur lesquelles on pulvérise le produit à tester. On connaít par ailleurs des testeurs que l'on a préalablement pressé sur de la poudre pour obtenir des échantillons prêts à l'emploi qui ne présentent qu'une seule face enduite. On connaít également des applicateurs comportant une âme comportant un revêtement par flocage sur lequel on compacte une poudre. Tous ces systèmes présentent principalement l'inconvénient de ne pas offrir une bonne tenue de la poudre sur son support lors du transport. Par ailleurs, lors de leur application sur la peau, le transfert est souvent inégal, réalisant ainsi un maquillage de qualité insuffisante. De même, le confort d'application laisse fortement à désirer.It is known to make samples of cosmetic products in particular, to from adhesive strips on which the product to be tested is sprayed. We also knows testers that were previously pressed on powder to obtain ready-to-use samples with only one side coated. There are also known applicators comprising a core comprising a coating by flocking on which a powder is compacted. All these systems have the main disadvantage of not offering good holding of the powder on its support during transport. Furthermore, during their application to the skin, the transfer is often uneven, thus achieving a makeup of insufficient quality. Similarly, the comfort of application leaves strongly to be desired.

La demande de brevet 95/11111 déposée le 27 septembre 1995 au nom de la demanderesse et intitulée « Houppette de mousse pour le soin et le traitement topique de la peau » décrit, ainsi qu'illustrée à la figure 1, une houppette de mousse pour le soin et le traitement topique de la peau, des ongles, des cheveux et des muqueuses, constituée de deux plaques de mousse 11, de taille et de contours sensiblement identiques, superposées bord à bord, entre lesquelles est encapsulée une poudre 12 d'un produit cosmétique, dermatologique ou pharmaceutique, hydrosoluble ou hydroémulsifiable, les deux plaques 11 étant maintenues solidaires par au moins une soudure au voisinage ou sur leur périphérie. Un tel système n'est cependant pas tout à fait satisfaisant en ce qu'il présente une restitution freinée de la poudre au travers des méandres des cellules constituant la mousse.Patent application 95/11111 filed on September 27, 1995 in the name of the Applicant and entitled "Powder puff for care and treatment topical of the skin ”describes, as illustrated in FIG. 1, a puff of foam for topical care and treatment of skin, nails, hair and mucous membranes, consisting of two foam plates 11, of size and substantially identical contours, superimposed edge to edge, between which is encapsulated a powder 12 of a cosmetic, dermatological or pharmaceutical, water-soluble or water-emulsifiable, the two plates 11 being held together by at least one weld in the vicinity or on their periphery. However, such a system is not entirely satisfactory in that it presents a restrained restitution of the powder through the meanders of the cells making up the foam.

Aussi, est-ce un des objets de la présente invention que de réaliser un applicateur de produit en poudre prêt à l'emploi, et ne présentant pas les inconvénients mentionnés ci-avant, et offrant en particulier une bonne tenue de la poudre sur l'applicateur lors de son transport, ainsi qu'un bon transfert de la poudre lors de son application sur une surface à traiter, réalisant ainsi une application homogène.It is therefore one of the objects of the present invention to produce a powder applicator ready to use, and not having the disadvantages mentioned above, and in particular offering good performance of the powder on the applicator during transport, as well as a good transfer of the powder when applied to a surface to be treated, thus achieving a homogeneous application.

D'autres objets de la présente invention apparaítront de manière détaillée dans la description qui suit.Other objects of the present invention will appear in detail in the description which follows.

Selon l'invention, ces objets sont atteints au moyen d'un applicateur de produit en poudre caractérisé en ce qu'il comprend un support dont au moins une partie de la surface est recouverte d'un flocage composé d'un mélange de fibres de revêtement et de poudre dudit produit à appliquer. En d'autres termes, selon l'invention, on a constaté que la poudre pouvait être déposée sur le support de la même manière que les fibres de revêtement, à savoir, avantageusement, par dépôt electrostatique. La poudre ainsi déposée fait partie intégrante du flocage recouvrant l'applicateur. On réduit ainsi le coût de l'applicateur, en déposant, en une seule et même étape, à la fois les fibres de revêtement et la poudre de produit à appliquer. Par ailleurs, en raison de ce mode d'application, la tenue de la poudre sur l'applicateur lors de son transport, est améliorée de façon sensible. Enfin, le transfert de la poudre, lors de son application sur une surface à traiter, est remarquable, réalisant ainsi une application homogène. According to the invention, these objects are achieved by means of a product applicator in powder characterized in that it comprises a support of which at least part of the surface is covered with a flocking composed of a mixture of fibers of coating and powder of said product to be applied. In other words, according to the invention, it was found that the powder could be deposited on the support of the same way as the covering fibers, namely, advantageously, by electrostatic deposit. The powder thus deposited is an integral part of the flocking covering the applicator. This reduces the cost of the applicator by depositing, one and the same step, both the coating fibers and the product to apply. Furthermore, due to this mode of application, the the powder on the applicator during transport is significantly improved. Finally, the transfer of the powder, when it is applied to a surface to be treated, is remarkable, thus achieving a homogeneous application.

A titre d'exemple, le mélange comporte entre 0,1 et 40 % de poudre dudit produit, et de préférence entre 5% et 20 % de poudre. Le support peut être constitué d'un matériau papier/textile, plastique, élastomère, ou alvéolaire.For example, the mixture comprises between 0.1 and 40% of powder of said product, and preferably between 5% and 20% powder. The support may consist of a paper / textile material, plastic, elastomer, or cellular.

Avantageusement, les fibres sont des fibres de Nylon, coton, rayonne, polyamide, ou polyester, ou tout mélange de ces différentes catégories.Advantageously, the fibers are fibers of nylon, cotton, rayon, polyamide, or polyester, or any mixture of these different categories.

L'invention concerne également un procédé pour fabriquer un applicateur de produit en poudre consistant à appliquer par flocage, sur au moins une partie de la surface d'un support, un mélange de fibres de revêtement et de poudre dudit produit à appliquer.The invention also relates to a method for manufacturing an applicator for powder product consisting in applying by flocking, on at least part of the surface of a support, a mixture of coating fibers and powder of said product to apply.

Avantageusement, l'application par flocage comprend les étapes suivantes :

  • a) dans des proportions données, mélanger la poudre de produit à appliquer avec des fibres de revêtement aptes à être appliquées électrostatiquement;
  • b) enduire au moins une partie de la surface du support d'un adhésif liquide;
  • c) par attraction électrostatique, déposer sur la surface du support ainsi enduite le mélange obtenu lors de l'étape a), les particules formant le mélange s'orientant ainsi de manière sensiblement perpendiculaire à la surface du support; et
  • d) faire passer le support ainsi recouvert au travers de moyens de séchage.
    • Advantageously, the application by flocking comprises the following steps:
  • a) in given proportions, mix the powder of product to be applied with coating fibers suitable for being applied electrostatically;
  • b) coating at least part of the surface of the support with a liquid adhesive;
  • c) by electrostatic attraction, deposit on the surface of the support thus coated the mixture obtained during step a), the particles forming the mixture thus orienting themselves substantially perpendicular to the surface of the support; and
  • d) passing the support thus covered through drying means.

    • Avantageusement, la poudre de produit est une poudre encapsulée de pigments. A titre d'exemple, on utilise une poudre de polyéthylène enrobée de polyuréthanne, et de pigments, ou une poudre de talc enrobée d'urée formol et de pigments. La poudre peut être poreuse et imprégnée d'agents la rendant électrostatique. A titre d'exemple encore, la poudre peut être constituée au moins en partie d'une poudre non minérale de type Rilsan® (poudre de polyamide 11) ou Expansel®. Advantageously, the product powder is a powder encapsulated with pigments. By way of example, a polyethylene powder coated with polyurethane, and pigments, or a talcum powder coated with urea formaldehyde and pigments. The powder can be porous and impregnated with agents making it electrostatic. As another example, the powder can consist at least partly of a non-mineral powder of Rilsan® type (polyamide 11 powder) or Expansel®.

    Selon un autre aspect de l'invention, on réalise également un ensemble d'application d'un produit en poudre caractérisé en ce qu'il comporte un applicateur selon l'invention.According to another aspect of the invention, an assembly is also produced application of a powdered product characterized in that it comprises a applicator according to the invention.

    Un tel ensemble d'application peut comprendre un applicateur dont une extrémité porte un organe d'application formé sur un support, l'autre extrémité formant des moyens de préhension, un capot étant prévu de manière à renfermer de manière étanche au moins ledit organe d'application.Such an application assembly may include an applicator, one end of which carries an applicator member formed on a support, the other end forming gripping means, a cover being provided so as to enclose so waterproof at least said applicator member.

    Dans la description détaillée qui suit, il sera fait référence aux dessins, parmi lesquels :

    • la figure 1 illustre de manière schématique un applicateur tel que décrit dans la demande de brevet français 95/11111;
    • les figure 2a - 2c représente différents modes de réalisation de l'applicateur selon l'invention;
    • les figures 3a-3c illustrent les principales étapes du procédé pour fabriquer les applicateurs selon l'invention.
    In the detailed description which follows, reference will be made to the drawings, among which:
    • Figure 1 schematically illustrates an applicator as described in French patent application 95/11111;
    • FIGS. 2a - 2c represent different embodiments of the applicator according to the invention;
    • Figures 3a-3c illustrate the main steps of the process for manufacturing the applicators according to the invention.

    L'applicateur selon l'invention est né de la constatation que de manière surprenante, une particule de poudre pouvait être traitée de la même manière qu'une fibre (ou poil) et être appliquée de manière avantageuse sur un support par la même technique de flocage.The applicator according to the invention was born from the observation that so surprisingly, a powder particle could be treated in the same way than a fiber (or hair) and be applied advantageously on a support by the same flocking technique.

    La figure 2a à laquelle il est maintenant fait référence, illustre une vue en coupe longitudinale d'un premier mode de réalisation de l'applicateur 1 selon l'invention. Celui-ci comprend principalement une âme centrale 2, faisant office de support et pouvant présenter différentes formes, longueurs, épaisseurs. Dans le mode de réalisation représenté, le support est de forme allongée, sensiblement effilé en l'une de ses extrémités. Le support peut être en matériau plastique, élastomère, alvéolaire, fritté, textile/papier ou tout autre matériau approprié. Il comporte sur au moins une partie de sa surface, une zone d'application 6 du produit obtenue selon l'invention par flocage d'un mélange de fibres 3 et de poudre 4. Ainsi que représentées, les fibres sont essentiellement orientées perpendiculairement à la surface du support auquel elles adhérent par l'intermédiaire d'une couche de colle 5. Les particules de poudre 4 sont elles-mêmes déposées sur le support lors de la même opération de flocage, 2. La majeur partie des particules de poudre se situe à la base des fibres sur le support, le long desquelles elles peuvent remonter sensiblement jusqu'à leur extrémité. Les fibres sont choisies de manière à favoriser l'accrochage de la poudre. A titre d'exemple, en fonction de la poudre à charger sur l'applicateur, on utilisera des fibres de Nylon, rayonne, polyamide, polyester, etc., ou n'importe quel mélange de telles fibres.Figure 2a to which reference is now made, illustrates a sectional view longitudinal of a first embodiment of the applicator 1 according to the invention. This mainly comprises a central core 2, acting as a support and may have different shapes, lengths, thicknesses. In the mode of shown embodiment, the support is elongated, substantially tapered in one of its ends. The support can be made of plastic, elastomeric material, cellular, sintered, textile / paper or any other suitable material. It features on at at least part of its surface, an area of application 6 of the product obtained according to the invention by flocking a mixture of fibers 3 and powder 4. As well as shown, the fibers are essentially oriented perpendicular to the surface of the support to which they adhere via a layer of glue 5. The powder particles 4 are themselves deposited on the support during of the same flocking operation, 2. Most of the powder particles are located at the base of the fibers on the support, along which they can go up substantially to their end. The fibers are chosen so to promote the attachment of the powder. For example, depending on the powder to load on the applicator, we will use nylon, rayon, polyamide fibers, polyester, etc., or any mixture of such fibers.

    Dans le mode de réalisation représenté, une extrémité 7 du support est nue de manière à définir une zone de préhension par une utilisatrice, ou d'accrochage par tout organe approprié. La disposition et la taille des zones de préhension/application est définie dans un processus industriel, par exemple, au moyen de techniques de masquage bien connues.In the embodiment shown, one end 7 of the support is bare of way to define a grip zone by a user, or attachment by any appropriate body. The layout and size of the gripping / application is defined in an industrial process, for example, at using well known masking techniques.

    Les applicateurs selon l'invention peuvent être également montés sur un manche 30, ou tout autre moyen de préhension permettant de favoriser son utilisation. De même, l'applicateur peut comporter un capot 31 apte à recouvrir au moins la portion contenant la poudre. Un tel capot se présente avantageusement sous forme d'un manchon fermé en l'une de ses extrémités, et dont la paroi interne épouse sensiblement la forme de l'applicateur. Le capot peut alors être monté sur l'applicateur, soit par vissage, soit au moyen d'un bourrelet annulaire coopérant avec une rainure annulaire ménagée sur l'applicateur. Des moyens d'étanchéité 32 peuvent être prévus pour permettre un conditionnement étanche du produit. De même, la poudre peut être de couleur identique à la couleur des fibres de revêtement, ou de couleur différente.The applicators according to the invention can also be mounted on a handle 30, or any other gripping means allowing its use to be favored. Of even, the applicator may include a cover 31 capable of covering at least the portion containing the powder. Such a cover advantageously appears under form of a sleeve closed at one of its ends, and the internal wall of which substantially matches the shape of the applicator. The cover can then be mounted on the applicator, either by screwing, or by means of a cooperating annular bead with an annular groove on the applicator. Sealing means 32 can be provided to allow a tight packaging of the product. Likewise, the powder may be of identical color to the color of the fibers of coating, or different color.

    Typiquement, le mélange appliqué par flocage sur le support comporte de 0,1 % à 40 % de poudre, et de préférence de 5 % à 20 % de poudre. A titre indicatif, les particules de poudre ont une taille moyenne comprise entre 0,5 et 500 µm , et de préférence entre 10 µm et 100 µm. Une telle poudre pourra comporter des actifs, des corps gras, des super absorbants d'humidité ou de gras. A titre d'exemple encore, la poudre peut être constituée d'une émulsion déshydratée. Dans le domaine cosmétique, on peut citer les poudres de soin, les teintes, les produits de type ombres à paupières, blush, etc..Typically, the mixture applied by flocking on the support comprises 0.1% to 40% powder, and preferably from 5% to 20% powder. As an indication, the powder particles have an average size of between 0.5 and 500 μm, and preferably between 10 µm and 100 µm. Such a powder may contain active agents, fatty substances, super absorbents of humidity or fat. For exemple still, the powder can consist of a dehydrated emulsion. In the cosmetic field, we can mention skincare powders, shades, products like eye shadows, blush, etc.

    La figure 2b représente une variante du mode de réalisation de la figure 2a et se distingue de cette dernière en ce que les poils dans lesquels est incorporée la poudre présentent différentes longueurs. De la même manière, on peut utiliser des fibres de natures et/ou diamètres différents, permettant ainsi de jouer sur la douceur de l'application, sur la quantité de poudre chargée sur l'applicateur, etc..Figure 2b shows a variant of the embodiment of Figure 2a and is distinguishes from the latter in that the hairs in which the powder have different lengths. In the same way, we can use fibers of different natures and / or diameters, thus making it possible to play on the smoothness of the application, on the quantity of powder loaded on the applicator, etc.

    Ainsi, lors de l'utilisation de l'applicateur selon l'invention, la poudre libre localisée essentiellement à la base des poils et le long de ceux-ci, peut être appliquée sur la surface voulue. Des essais ont montré que l'applicateur selon l'invention offre une remarquable tenue de la poudre sur l'applicateur lors de son transport ainsi qu'un meilleur transfert de la poudre sur la peau par application d'une légère pression.Thus, when using the applicator according to the invention, the localized loose powder essentially at the base of the hairs and along them, can be applied to the desired surface. Tests have shown that the applicator according to the invention offers a remarkable hold of the powder on the applicator during its transport as well than a better transfer of the powder to the skin by applying a light pressure.

    Les figures 3a-3c illustrent un mode de réalisation préféré du procédé selon l'invention. Dans une première étape, (figure 3a) le support 2 est transporté par un mécanisme approprié 20 au niveau d'un bain d'adhésif liquide 21, dans lequel est trempée la zone d'application de l'applicateur. A titre d'exemple, on utilise un adhésif monomère, acrylique, vinylique, à base aqueuse ou solvant. Alternativement, l'enduction en adhésif du support est réalisée par pulvérisation (pistoletage). Le mélange fibres/poudre est traité (chargé électriquement) de manière à pouvoir être appliqué électrostatiquement. Suivant le pourcentage de poudre à appliquer, on traitera juste le revêtement de fibres (floc), ou bien à la fois la poudre et le floc. La poudre peut être rendue apte à être chargée électrostatiquement, par exemple par enrobage de particules, liants, ou de pigments aptes à être chargés. Le mélange obtenu est maintenu sous agitation par des moyens d'agitation appropriés, ajustés cependant de manière à ne pas affecter de manière sensible la charge électrostatique du mélange.Figures 3a-3c illustrate a preferred embodiment of the method according to the invention. In a first step, (Figure 3a) the support 2 is transported by a suitable mechanism 20 at a liquid adhesive bath 21, in which the application area of the applicator is soaked. For example, we use a monomer, acrylic, vinyl, water-based or solvent-based adhesive. Alternatively, the adhesive coating of the support is carried out by spraying. (spraying). The fiber / powder mixture is treated (electrically charged) with so that it can be applied electrostatically. According to the percentage of powder to be applied, just treat the fiber coating (flock), or both the powder and the flock. The powder can be made suitable for loading electrostatically, for example by coating particles, binders, or pigments capable of being loaded. The mixture obtained is kept under stirring by suitable stirring means, however adjusted so as not to significantly affect the electrostatic charge of the mixture.

    Dans une seconde étape, (figure 3b), le mélange fibres/poudre 3, 4 est appliqué sur la partie enduite du support 2 par application d'un champ électrostatique. Les particules constituant le mélange sont en suspension dans l'air et sont déposées sur la surface imprégnée de l'applicateur par attraction électrostatique. De ce fait, dans la majorité des cas, ces particules s'orientent de façon sensiblement perpendiculaire à la surface imprégnée.In a second step (Figure 3b), the fiber / powder mixture 3, 4 is applied on the coated part of the support 2 by application of an electrostatic field. The particles constituting the mixture are suspended in the air and are deposited on the impregnated surface of the applicator by electrostatic attraction. Thereby, in the majority of cases, these particles orient themselves in a substantially perpendicular to the impregnated surface.

    Enfin, dans une troisième étape (figure 3c), on fait passer l'élément ainsi revêtu au travers de moyens de séchage 21 (une étuve par exemple). Dans le cas d'un adhésif monomère, le séchage permettra de polymériser l'adhésif. Avantageusement, après refroidissement, l'excès de particules (à la fois la poudre de produit et les fibres) est éliminé par aspiration.Finally, in a third step (Figure 3c), the element thus coated is passed through drying means 21 (an oven for example). In the case of a monomeric adhesive, drying will cure the adhesive. Advantageously, after cooling, the excess of particles (both the product powder and fibers) is removed by suction.

    Divers conditionnements peuvent être envisagés pour un tel applicateur. A titre d'exemple, il peut être conditionné dans des barquettes thermoformées, présentant une opercule d'ouverture, ou sous forme de sachets individuels. Dans le cas d'un applicateur de forme sensiblement longitudinale (du type plume ou mine) et dont une extrémité est réservée à la préhension, il est avantageux de prévoir des dispositifs à pinces (type critérium) pour saisir l'applicateur par sa partie non traitée. Ces types de conditionnements ne sont donnés qu'à titre indicatif. Il est évident que d'autres modes sont possibles, en fonction de la forme et de l'utilisation de l'applicateur.Various packaging can be envisaged for such an applicator. As for example, it can be packaged in thermoformed trays, with an opening seal, or in the form of individual sachets. In the case of an applicator of substantially longitudinal shape (of the feather type or mine) and one end of which is reserved for gripping, it is advantageous to provide gripper devices (criterium type) to grip the applicator by its untreated part. These types of packaging are only given as indicative. It is obvious that other modes are possible, depending on the form and the use of the applicator.

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

    Claims (22)

    Applicateur (1) de produit en poudre caractérisé en ce qu'il comprend un support (2) dont au moins une partie de la surface est recouverte d'un flocage constitué d'un mélange de fibres de revêtement (3) et de poudre (4) dudit produit à appliquer.Applicator (1) of powdered product characterized in that it comprises a support (2) of which at least part of the surface is covered with a flocking consisting of a mixture of coating fibers (3) and powder (4) of the product to be applied. Applicateur selon la revendication 1 caractérisé en ce que le mélange comporte entre 0,1 et 40 % de poudre dudit produit.Applicator according to claim 1 characterized in that the mixture contains between 0.1 and 40% powder of said product. Applicateur selon la revendication 2 caractérisé en ce que le mélange comporte entre 5 et 20 % de poudre dudit produit.Applicator according to claim 2 characterized in that the mixture contains between 5 and 20% powder of said product. Applicateur selon la revendication 1 ou 2 caractérisé en ce que le support (2) est constitué d'un matériau plastique, élastomère, textile/papier ou alvéolaire.Applicator according to claim 1 or 2 characterized in that the support (2) consists of a plastic, elastomeric material, textile / paper or cellular. Applicateur selon l'une quelconque des revendications 1 à 4 caractérisé en ce que les fibres (3) sont des fibres de Nylon, coton, rayonne, polyamide, ou polyester.Applicator according to any one of claims 1 to 4 characterized in that the fibers (3) are fibers of nylon, cotton, rayon, polyamide, or polyester. Applicateur selon l'une quelconque des revendication 1 à 5 caractérisé en ce que ledit mélange comporte des fibres (3) de longueur et /ou de nature et/ou de diamètre différents.Applicator according to any one of claims 1 to 5, characterized in that said mixture comprises fibers (3) of length and / or different nature and / or diameter. Applicateur selon l'une quelconque des revendications 1 à 6 caractérisé en ce que le support (2) présente une portion non floquée (7) afin de permettre la préhension ou l'accrochage dudit applicateur. Applicator according to any one of claims 1 to 6 characterized in that the support (2) has an unflocked portion (7) in order to allow the gripping or attachment of said applicator. Applicateur selon la revendication 7 caractérisé en ce qu'il comporte un capot (31) destiné à recouvrir au moins la portion floquée, des moyens d'étanchéité (32) assurant un conditionnement étanche du produit.Applicator according to claim 7 characterized in that it comprises a cover (31) intended to cover at least the flocked portion, means sealing (32) ensuring a tight packaging of the product. Applicateur selon l'une quelconque des revendications 1 à 8 caractérisé en ce que la taille moyenne des particules constituant la poudre (4) dudit produit est comprise entre 0,5 µm et 500 µm.Applicator according to any one of claims 1 to 8 characterized in that the average size of the particles constituting the powder (4) of said product is between 0.5 µm and 500 µm. Applicateur selon la revendication 9 caractérisé en ce que la taille moyenne des particules constituant la poudre (4) dudit produit est comprise entre 10 µm et 100 µm.Applicator according to claim 9 characterized in that the size average of the particles constituting the powder (4) of said product is between 10 µm and 100 µm. Applicateur selon l'une quelconque des revendications 1 à 10 caractérisé en ce que la poudre est de couleur identique ou différente de la couleur du revêtement.Applicator according to any one of claims 1 to 10 characterized in that the powder is the same color or different from the color of the coating. Applicateur selon l'une quelconque des revendications 1 à 11 caractérisé en ce que le produit est un fond de teint, du blush, un produit pour ombres à paupières, un effaceur de rides ou de cernes, un kohl, etc..Applicator according to any one of claims 1 to 11 characterized in that the product is a foundation, blush, a product for eye shadows, an eraser for wrinkles or dark circles, a kohl, etc. Applicateur selon l'une quelconque des revendications précédentes caractérisé en ce que le produit en poudre est constitué d'une poudre encapsulée de pigments.Applicator according to any one of the preceding claims characterized in that the powdered product consists of a powder encapsulated with pigments. Ensemble d'application (30, 31, 32) d'un produit en poudre caractérisé en ce qu'il comporte un applicateur selon l'une quelconque des revendications précédentes.Application set (30, 31, 32) of a powdered product characterized in that it includes an applicator according to any one of previous claims. Ensemble d'application selon la revendication 14 caractérisé en ce qu'il comprend un applicateur (1) dont une extrémité porte un organe d'application (6) formé sur un support (2), l'autre extrémité formant des moyens de préhension (30), un capot (31) étant prévu de manière à renfermer de manière étanche au moins ledit organe d'application.Application assembly according to claim 14 characterized in that it comprises an applicator (1), one end of which carries a member application (6) formed on a support (2), the other end forming gripping means (30), a cover (31) being provided so as to sealingly enclose at least said applicator member. Procédé pour fabriquer un applicateur de produit en poudre consistant à appliquer par flocage, sur au moins une partie de la surface d'un support (2), un mélange de fibres de revêtement (3) et de poudre (4) dudit produit à appliquer.Method for manufacturing a powdered product applicator comprising apply by flocking, on at least part of the surface of a support (2), a mixture of coating fibers (3) and powder (4) of said product to apply. Procédé selon la revendication 16 caractérisé en ce que l'application par flocage comprend les étapes suivantes : a) dans des proportions données, mélanger la poudre (4) de produit à appliquer avec des fibres de revêtement (3), les fibres de revêtement, et éventuellement la poudre, étant préalablement chargées électrostatiquement; b) enduire au moins une partie (6) de la surface du support d'un adhésif liquide (5); c) par attraction électrostatique, déposer sur la surface du support ainsi enduite le mélange obtenu lors de l'étape a), les particules formant le mélange s'orientant ainsi de manière sensiblement perpendiculaire à la surface du support; et d) faire passer le support (2) ainsi recouvert au travers de moyens de séchage (21). Method according to claim 16 characterized in that the application by flocking comprises the following steps: a) in given proportions, mix the powder (4) of product to be applied with coating fibers (3), the coating fibers, and optionally the powder, being previously electrostatically charged; b) coating at least part (6) of the surface of the support with a liquid adhesive (5); c) by electrostatic attraction, depositing on the surface of the support thus coated the mixture obtained during step a), the particles forming the mixture thus orienting themselves substantially perpendicular to the surface of the support; and d) passing the support (2) thus covered through drying means (21). Procédé selon la revendication 17 caractérisé en ce qu'il comprend en plus l'étape suivante: e) après refroidissement, éliminer l'excès de particules par aspiration. A method according to claim 17 characterized in that it further comprises the following step: e) after cooling, remove excess particles by suction. Procédé selon la revendication 17 ou 18 caractérisé en ce que l'enduction d'adhésif liquide est réalisée par trempage ou par pulvérisation. Method according to claim 17 or 18 characterized in that the coating of liquid adhesive is carried out by dipping or by spray. Procédé selon l'une quelconque des revendications 16 à 19 caractérisé en ce que le mélange comporte entre 0,1 % et 40 % de poudre (4) dudit produit.Method according to any one of claims 16 to 19 characterized in that the mixture comprises between 0.1% and 40% of powder (4) of said product. Procédé selon l'une quelconque des revendications 16 à 20 caractérisé en ce que le mélange comporte entre 5 % et 20 % de poudre (4) dudit produit.Method according to any one of claims 16 to 20 characterized in that the mixture comprises between 5% and 20% of powder (4) of said product. Procédé selon l'une quelconque des revendications 16 à 21 caractérisé en ce que ledit mélange comporte des fibres (3) de longueur et/ou de nature et/ou de diamètre différents.Method according to any one of claims 16 to 21 characterized in that said mixture comprises fibers (3) of length and / or different nature and / or diameter.
    EP97401863A 1996-09-02 1997-08-01 Powder applicator and process of manufacturing the same Expired - Lifetime EP0832577B1 (en)

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    FR9610689A FR2752695B1 (en) 1996-09-02 1996-09-02 POWDER APPLICATOR AND METHOD FOR MANUFACTURING THE APPLICATOR
    FR9610689 1996-09-02

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    JP (1) JP2954107B2 (en)
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    DE69700131T2 (en) 1999-07-01
    ES2131984T3 (en) 1999-08-01
    US6096382A (en) 2000-08-01
    EP0832577B1 (en) 1999-03-10
    FR2752695A1 (en) 1998-03-06
    CN1187328A (en) 1998-07-15
    BR9702814A (en) 1998-12-29
    AR009483A1 (en) 2000-04-26
    FR2752695B1 (en) 1998-10-16
    CA2213636A1 (en) 1998-03-02
    JP2954107B2 (en) 1999-09-27
    DE69700131D1 (en) 1999-04-15
    CA2213636C (en) 2000-02-01
    MX9706563A (en) 1998-07-31
    US6283664B1 (en) 2001-09-04
    CN1116842C (en) 2003-08-06
    JPH1085035A (en) 1998-04-07

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