EP1199956A1 - Article for applying a topical composition and method for preparing same - Google Patents

Article for applying a topical composition and method for preparing same

Info

Publication number
EP1199956A1
EP1199956A1 EP00949661A EP00949661A EP1199956A1 EP 1199956 A1 EP1199956 A1 EP 1199956A1 EP 00949661 A EP00949661 A EP 00949661A EP 00949661 A EP00949661 A EP 00949661A EP 1199956 A1 EP1199956 A1 EP 1199956A1
Authority
EP
European Patent Office
Prior art keywords
article according
topical composition
article
layer
composition
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.)
Withdrawn
Application number
EP00949661A
Other languages
German (de)
French (fr)
Inventor
Jean-Claude Le Joliff
Isabelle Baumont
Samira Karkoubi
Sabine Forterre
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.)
Bourjois SAS
Original Assignee
Bourjois SAS
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from FR9908952A external-priority patent/FR2795928B1/en
Application filed by Bourjois SAS filed Critical Bourjois SAS
Publication of EP1199956A1 publication Critical patent/EP1199956A1/en
Withdrawn legal-status Critical Current

Links

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
    • 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
    • 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
    • A45D37/00—Sachet pads specially adapted for liquid toiletry or cosmetic substances

Definitions

  • the subject of the present invention is an article allowing the application of a topical composition, in particular a cosmetic or pharmaceutical composition, as well as a process for the preparation of such an article.
  • compositions intended for topical application that is to say compositions intended for application to the skin and the mucous membranes
  • Cosmetic or pharmaceutical compositions intended for topical application are usually sold in packages of the tube or jar type.
  • the user must take a fraction of it which he applies with his fingers on the cutaneous area or the mucous membrane concerned. But, in this way, the user gets his hands dirty on contact with the topical composition which, in certain cases, may also have an unpleasant feel.
  • textile supports impregnated with a topical composition have been proposed, intended to be directly applied to the skin. However, these textile supports only partially avoid contact between the topical composition and the user's hand.
  • the invention therefore consists of an article for the application of a cosmetic or pharmaceutical topical composition, characterized in that it comprises an upper layer permeable to the topical composition, a lower layer impermeable to the topical composition comprising a textile material, the two layers being superimposed edge to edge and held integral by welding of their periphery so as to delimit a space in which is housed at least one capsule containing the topical composition.
  • an article in accordance with the invention makes it possible to deliver a selected dose of the topical composition and to keep it protected from air, thus giving it great stability.
  • FIG. 1 represents an article according to the invention, comprising several capsules containing a topical, cosmetic or pharmaceutical composition, in perspective with a skinned part.
  • An article according to the invention usually has an upper layer also comprising a textile material
  • the textile material which can be used both for the lower layer and for the upper layer is generally chosen so as to give the user a pleasant and soft feeling on contact with the skin.
  • non-abrasive materials are preferred.
  • the textile material can be a woven fabric or, preferably, a non-woven fabric.
  • the textile material can also consist of individual textile fibers arranged on a adequate support, these fibers being able to give the pleasant and soft feeling required.
  • Mention may be made, as woven or non-woven textile materials, of: "natural products, such as natural silk or cellulose such as cotton or wood pulp,
  • polyolefins such as polyethylene, polypropylene or copolymers of ethylene and propylene
  • polyesters such as copolymers derived from acetic acid such as polyvinyl acetate
  • polyamides such as nylon, polyurethanes
  • the fibers constituting these woven or nonwoven materials, or said individualized fibers may be solid, hollow, porous, multi-lamellar or be in the form of two-component fibers such as polyester / viscose or polyester / polyamide fibers.
  • the textile materials of the lower and upper layers may be hot-melt or thermoplastic.
  • Some of the materials described above have these qualities, in particular polyolefins such as polyethylene. This indeed makes it possible to easily perform, in particular on an industrial scale, the welding between these two layers according to methods which are described below.
  • the lower layer and the upper layer may consist entirely of at least one textile material, such as those described above.
  • At least one of the lower and upper layers may consist of a multilayer structure, comprising at least two sublayers.
  • the lower layer may comprise an external underlayer, made of a permeable textile material, pleasant to the touch, as well as an internal underlayer, impermeable with respect to the topical composition.
  • This impermeable internal sublayer may consist of a film of a polymeric material, for example a polyolefin film such as polyethylene, polypropylene or copolymers of ethylene and propylene.
  • the lower and upper layers may each consist of a multilayer structure whose internal sublayers, facing each other, are each made of a hot-melt or thermoplastic material as described above to allow the production of a weld according to methods as described below.
  • the external sub-layers, with which the user comes into contact can be made of a material chosen for its pleasant side, soft to the touch, and not necessarily having qualities suitable for ensuring a good weld.
  • These multilayer structures can be obtained by methods well known to those skilled in the art, such as laminating or calendering.
  • At least the bottom layer comprises a textile material.
  • a textile material promotes the user to take hold of the article according to the invention, which promotes good application of the topical composition to the skin. This is more particularly important when the topical composition is applied to the face where it should be carefully and precisely spread, especially in the folds of the face.
  • the textile material with pleasant contact, makes the product acceptable to the user, particularly demanding when it is a cosmetic or pharmaceutical product.
  • a material is permeable with respect to a topical composition when the latter can pass through the pores of this material.
  • the woven or non-woven textile material used can have a grammage of between 20 and 250 g / m 2 , preferably between 100 and 180 g / m 2 (standard ISO 9073-1).
  • An article according to the invention may comprise only a single capsule containing the topical composition. However, generally, several small capsules are used, each comprising a fraction of the topical composition. These small capsules generally have an average diameter of between 0.5 and 5 mm, preferably between 1 and 2.5 mm.
  • the envelope of these capsules can consist of a hydrophilic colloid such as albumin, alginates, casein, pectins, starch, gelatin or cellulose derivatives such as ethyl cellulose, nitrocellulose, l cellulose acetate, shellac, polyacrylic acid, polymethacrylic acid, polysaccharides, polyvinyl derivatives, polycarbonate or polystyrene.
  • Gelatin is a preferred constituent of the capsule shell. The gelatin can in particular be porcine, bovine, ovine or fish gelatin.
  • the degree of encapsulation that is to say, the weight ratio between the topical composition contained in each capsule and the total weight of the capsule is usually between 80 and 99%.
  • the capsules in order to release the composition which they contain, must be breakable by simple folding of the article in accordance with the invention and pressure by hand. According to another advantage of the invention, the user, when he breaks the capsules through said layers, feels a pleasant sensation.
  • the quantity of capsules per article according to the invention is chosen according to the dose of topical composition desired and the rate of encapsulation.
  • the dose of topical composition is itself a function of the nature and the destination of this composition.
  • the preparation of these capsules is, in itself, well known to those skilled in the art.
  • the capsules can be prepared by coacervation, by means of a coacervating agent.
  • AT as coacervating agent there may be mentioned aqueous solutions of electrolytes which contain organic and / or inorganic salts such as, for example, alkali metal, alkaline earth metal or ammonium salts, salts with organic or inorganic anions such as sulfates, polyphosphates, acetate and formate.
  • Sodium hexametaphosphate is a particularly suitable coacervating agent.
  • the capsules obtained by this method can be fragile, especially when they are extracted from the reaction medium where they are formed.
  • a crosslinking agent such as glutaraldehyde or formaldehyde can be added to said reaction medium.
  • the topical composition is usually in liquid, pasty, semi-pasty or gel form. It can consist of a cosmetic composition, in particular a make-up product, a skin care product, a hygiene or skin cleansing product.
  • the makeup product may in particular consist of a foundation.
  • the skin hygiene or cleaning product can consist of a makeup remover.
  • the topical composition can also consist of a perfume in the form of an essential oil, a hydroalcoholic solution, or even an emulsion.
  • the topical composition may also consist of a pharmaceutical composition, in particular a dermopharmaceutical or ophthalmic product. These topical compositions are known in themselves and include active principles and / or conventional excipients.
  • An article according to the invention usually has a thickness of between 5 and 20 mm. It can be rectangular, triangular square or circular. The longest diameter or side of such an article is usually between 1 and 10 cm.
  • the thickness of each of said upper and lower layers may be between 0.5 and 4 mm, preferably between 1 and 3 mm.
  • the single FIGURE represents an article 1 according to the invention, comprising an impermeable lower layer 2 consisting of an external sublayer 3 of natural non-woven cellulose and an internal sublayer 4 consisting of a polyethylene film, on which capsules are placed 5 containing a topical composition, as well as a permeable upper layer 6 made of a nonwoven fabric consisting of an inner underlay 7 of polyester and an outer under coat 8 based on a mixture of 30% by weight polyester fiber and 70% by weight of viscose fibers.
  • the upper and lower layers are connected edge to edge by a weld 9.
  • the capsules of the article according to the invention can be broken by folding it and pressing it with the fingers, so that the topical composition, thus activated, migrates through the permeable upper layer.
  • This topical composition can then advantageously be applied and spread over the skin using the textile material constituting the upper layer, without it coming into contact with the user's hand or fingers.
  • the capsule (s) comprising the topical composition are deposited on the internal surface of one of the upper layer and the lower layer constituting said article. Then the other layer edge to edge is superimposed with the layer on which the capsule (s) have been deposited and the two layers are welded together, edge to edge, at their periphery.
  • Welding can be carried out by heating, by ultrasound, by bonding, by high frequency wave or by mechanical compression. When the welding is carried out by heating, ultrasound or high frequency wave, it is required that the lower and upper layers are, at least at their periphery, made of a hot-melt or thermoplastic material.
  • An article in accordance with the invention can be packaged in an envelope made of plastic material or a two-layer material comprising an external metallic face, for example aluminum, and an internal plastic face, which can contain one or more of said articles.
  • an envelope made of plastic material or a two-layer material comprising an external metallic face, for example aluminum, and an internal plastic face, which can contain one or more of said articles.
  • Example 1 Article comprising an encapsulated foundation
  • An anhydrous foundation was prepared having the following composition: - Caprilic / capric triglyceride 19.5 g
  • the pH of the reaction medium was adjusted with 1 N citric acid so as to lower it to a value of 4-5.
  • the heating was turned off and returned to room temperature with stirring for about 1 hour 30 minutes.
  • the temperature was further lowered to about 15 ° C with ice, then 10 ml of 1.5% glutaraldehyde was added and allowed to act for 2 hours with stirring; this duration corresponds to the crosslinking time and allows the capsules to solidify.
  • a very fine silica spatula was added to prevent the capsules from sticking together. It was left to settle, then it was filtered and the capsules were rinsed with distilled water.
  • the capsules were stored in water containing 0.5% preservative.
  • Examples 2 to 4 relate to articles in accordance with the invention, comprising various cosmetic compositions. These articles were prepared according to the method described in example 1. They differ from the article according to example 1 only in the very nature of the topical composition, the only one explained in these examples 2 to 4.
  • Example 2 Article comprising a conventional encapsulated foundation A classic foundation was prepared having the following composition:
  • Example 3 Article comprising a formula of an encapsulated oil-in-water emulsion
  • Carbopol ETD 2020 1 (acrylic polymer) 0.25%
  • a water-in-oil emulsion formula having the following composition was prepared:

Abstract

The invention concerns an article for applying a topical composition comprising an upper layer (6) permeable to the topical composition, a lower layer (2) impermeable to the topical composition, the two layers being superposed edge to edge and maintained integral by a weld at their periphery, and at least a capsule (5) containing said topical composition. The invention also concerns a method for preparing such an article.

Description

Article pour l'application d'une composition topique et son procédé de préparation. Article for the application of a topical composition and its preparation process.
La présente invention a pour objet un article permettant l'application d'une composition topique, en particulier une composition cosmétique ou pharmaceutique, ainsi qu'un procédé de préparation d'un tel article.The subject of the present invention is an article allowing the application of a topical composition, in particular a cosmetic or pharmaceutical composition, as well as a process for the preparation of such an article.
Les compositions cosmétiques ou pharmaceutiques destinées à une application topique, c'est-à-dire des compositions destinées à être appliquées sur la peau et les muqueuses, sont habituellement commercialisées dans des conditionnements du type tubes ou pots. L'utilisateur doit en prélever une fraction qu'il applique avec ses doigts sur la zone cutanée ou la muqueuse concernée. Mais, de cette façon, l'utilisateur se salit les mains au contact de la composition topique qui, dans certains cas, peut en outre présenter un toucher désagréable. Pour éviter ces inconvénients, on a proposé des supports textiles imprégnés d'une composition topique, destinés à être directement appliqués sur la peau. Toutefois, ces supports textiles n'évitent que partiellement le contact entre la composition topique et la main de l'utilisateur.Cosmetic or pharmaceutical compositions intended for topical application, that is to say compositions intended for application to the skin and the mucous membranes, are usually sold in packages of the tube or jar type. The user must take a fraction of it which he applies with his fingers on the cutaneous area or the mucous membrane concerned. But, in this way, the user gets his hands dirty on contact with the topical composition which, in certain cases, may also have an unpleasant feel. To avoid these drawbacks, textile supports impregnated with a topical composition have been proposed, intended to be directly applied to the skin. However, these textile supports only partially avoid contact between the topical composition and the user's hand.
Par ailleurs, les utilisateurs recherchent de plus en plus, notamment dans le domaine des soins et traitement de la peau, des produits à usage unique, faciles à transporter, prêts à l'emploi et d'utilisation commode.In addition, users are increasingly looking, especially in the field of skin care and treatment, for single-use products which are easy to transport, ready to use and convenient to use.
Il a déjà été proposé par le brevet EP 0 764 409 d'insérer des produits cosmétiques sous forme de poudre, de gel solide ou de pain, dans une houppette de mousse constituée d'au moins une plaque de mousse, munie d'une soudure charnière. Le produit cosmétique est activé par imprégnation de la plaque de mousse par une solution ou une émulsion, pour être ensuite appliqué sur la peau.It has already been proposed by patent EP 0 764 409 to insert cosmetic products in the form of powder, solid gel or bread, in a foam puff consisting of at least one foam plate, provided with a weld hinge. The cosmetic product is activated by impregnating the foam plate with a solution or an emulsion, to then be applied to the skin.
Toutefois, ce type de conditionnement ne convient que pour des produits qui peuvent se présenter sous une forme solide. Mais surtout, il ne s'agit pas là d'un véritable produit prêt à l'emploi, d'utilisation simple, puisqu'il nécessite l'imprégnation préalable de la mousse pour activer le produit cosmétique, par un liquide. Par ailleurs, le produit cosmétique, une fois activé, est destiné à s'écouler par tous les pores de la mousse. De ce fait, les mains de l'utilisateur entrent inévitablement en contact avec le produit cosmétique activé. La demanderesse a alors cherché à mettre au point un article pour conditionner et appliquer des compositions topiques utiles en cosmétique ou en pharmacie, obviant les inconvénients mentionnés ci-dessus, qui soit tout à la fois simple d'utilisation, facile à transporter, d'usage unique et qui permette d'éviter le contact entre les doigts de l'utilisateur et la composition.However, this type of packaging is only suitable for products which may be in a solid form. But above all, this is not a real ready-to-use product, simple to use, since it requires the prior impregnation of the foam to activate the cosmetic product, with a liquid. Furthermore, the cosmetic product, once activated, is intended to flow through all the pores of the foam. Therefore, the user's hands inevitably come into contact with the activated cosmetic product. The Applicant then sought to develop an article for packaging and applying topical compositions useful in cosmetics or in pharmacies, overcoming the drawbacks mentioned above, which is at the same time simple to use, easy to transport, single use and which avoids contact between the user's fingers and the composition.
L'invention consiste alors en un article pour l'application d'une composition topique cosmétique ou pharmaceutique caractérisé en ce qu'il comporte une couche supérieure perméable à la composition topique, une couche inférieure imperméable à la composition topique comprenant un matériau textile, les deux couches étant superposées bord à bord et maintenues solidaires par soudure de leur périphérie de sorte à délimiter un espace dans lequel est logé au moins une capsule contenant la composition topique.The invention therefore consists of an article for the application of a cosmetic or pharmaceutical topical composition, characterized in that it comprises an upper layer permeable to the topical composition, a lower layer impermeable to the topical composition comprising a textile material, the two layers being superimposed edge to edge and held integral by welding of their periphery so as to delimit a space in which is housed at least one capsule containing the topical composition.
Outre les avantages cités plus haut, un article conforme à l'invention permet de délivrer une dose choisie de la composition topique et de maintenir celle-ci à l'abri de l'air, lui conférant ainsi une grande stabilité.In addition to the advantages mentioned above, an article in accordance with the invention makes it possible to deliver a selected dose of the topical composition and to keep it protected from air, thus giving it great stability.
D'autres avantages des articles conformes à l'invention apparaîtront à la lecture de la description détaillée qui suit et de la figure unique.Other advantages of the articles in accordance with the invention will appear on reading the detailed description which follows and the single figure.
La figure 1 représente un article selon l'invention, comprenant plusieurs capsules contenant une composition topique, cosmétique ou pharmaceutique, en perspective avec une partie écorchée. Un article conforme à l'invention présente habituellement une couche supérieure comprenant, elle aussi, un matériau textileFIG. 1 represents an article according to the invention, comprising several capsules containing a topical, cosmetic or pharmaceutical composition, in perspective with a skinned part. An article according to the invention usually has an upper layer also comprising a textile material
Le matériau textile que l'on peut utiliser aussi bien pour la couche inférieure que pour la couche supérieure est généralement choisi de sorte à conférer à l'utilisateur une sensation agréable et douce au contact de la peau. Bien entendu, on préfère des matériaux non abrasifs. Le matériau textile peut être un textile tissé ou, de préférence, un textile non tissé. Le matériau textile peut aussi consister en des fibres textiles individualisées disposées sur un support adéquat, ces fibres étant à même de conférer la sensation agréable et douce requise.The textile material which can be used both for the lower layer and for the upper layer is generally chosen so as to give the user a pleasant and soft feeling on contact with the skin. Of course, non-abrasive materials are preferred. The textile material can be a woven fabric or, preferably, a non-woven fabric. The textile material can also consist of individual textile fibers arranged on a adequate support, these fibers being able to give the pleasant and soft feeling required.
A titre de matériaux textiles tissés ou non tissés, on peut citer ceux à base : « de produits naturels, comme la soie ou la cellulose naturelle telle le coton ou la pâte de bois,Mention may be made, as woven or non-woven textile materials, of: "natural products, such as natural silk or cellulose such as cotton or wood pulp,
• de produits artificiels comme la cellulose régénérée telle la viscose ou la viscose haute ténacité,• artificial products such as regenerated cellulose such as viscose or high tenacity viscose,
• de produits synthétiques comme les polyoléfines tels le polyéthylène, le polypropylène ou des copolymères d'éthylène et de propylène, les polyesters tels les copolymères dérivés de l'acide acétique comme le polyacétate de vinyle, les polyamides tels le nylon, les polyuréthanes,• synthetic products such as polyolefins such as polyethylene, polypropylene or copolymers of ethylene and propylene, polyesters such as copolymers derived from acetic acid such as polyvinyl acetate, polyamides such as nylon, polyurethanes,
• de mélanges de deux ou plusieurs des produits décrits ci- dessus, en particulier des mélanges à base de fibres de viscose et de fibres de polyester. Les fibres constituant ces matériaux tissés ou non tissés, ou lesdites fibres individualisées, peuvent être pleines, creuses, poreuses, multi- lamellaires ou se présenter sous forme de fibres bi-composants comme des fibres polyester / viscose ou polyester / polyamide.• mixtures of two or more of the products described above, in particular mixtures based on viscose fibers and polyester fibers. The fibers constituting these woven or nonwoven materials, or said individualized fibers, may be solid, hollow, porous, multi-lamellar or be in the form of two-component fibers such as polyester / viscose or polyester / polyamide fibers.
Il peut être avantageux que les matériaux textiles des couches inférieure et supérieure soient thermofusibles ou thermoplastiques. Certains des matériaux décrits ci-dessus présentent ces qualités, en particulier les polyoléfines comme le polyéthylène. Ceci permet en effet de réaliser facilement, notamment à l'échelle industrielle, la soudure entre ces deux couches selon des procédés qui sont décrits ci-après.It may be advantageous for the textile materials of the lower and upper layers to be hot-melt or thermoplastic. Some of the materials described above have these qualities, in particular polyolefins such as polyethylene. This indeed makes it possible to easily perform, in particular on an industrial scale, the welding between these two layers according to methods which are described below.
La couche inférieure et la couche supérieure peuvent être constituées intégralement d'au moins un matériau textile, tel ceux décrits plus haut. L'une au moins d'entre la couche inférieure et supérieure peut être constituée d'une structure multicouche, comprenant au moins deux sous- couches. Une telle structure multicouche peut présenter plusieurs avantages. Ainsi, la couche inférieure peut comprendre une sous-couche externe, en un matériau textile perméable, agréable au toucher, ainsi qu'une sous-couche interne, imperméable vis-à-vis de la composition topique. Cette sous-couche interne imperméable peut être constituée d'un film en un matériau polymère, par exemple un film en polyoléfine comme le polyéthylène, le polypropylène ou des copolymères d'éthylène et de propylène.The lower layer and the upper layer may consist entirely of at least one textile material, such as those described above. At least one of the lower and upper layers may consist of a multilayer structure, comprising at least two sublayers. Such a multilayer structure can have several advantages. Thus, the lower layer may comprise an external underlayer, made of a permeable textile material, pleasant to the touch, as well as an internal underlayer, impermeable with respect to the topical composition. This impermeable internal sublayer may consist of a film of a polymeric material, for example a polyolefin film such as polyethylene, polypropylene or copolymers of ethylene and propylene.
En outre, les couches inférieure et supérieure peuvent être chacune constituée d'une structure multicouche dont les sous-couches internes, se faisant face, sont chacune en un matériau thermofusible ou thermoplastique tel que décrit plus haut pour permettre la réalisation d'une soudure selon des procédés tels que décrits ci-après. Ainsi, les sous-couches externes, avec lesquelles l'utilisateur entre en contact, peuvent être constituées d'un matériau choisi pour son côté agréable, doux au toucher, et ne présentant pas nécessairement des qualités propres à assurer une bonne soudure. Ces structures multicouches peuvent être obtenues par des procédés bien connus de l'homme du métier, comme le contre collage ou le calandrage.In addition, the lower and upper layers may each consist of a multilayer structure whose internal sublayers, facing each other, are each made of a hot-melt or thermoplastic material as described above to allow the production of a weld according to methods as described below. Thus, the external sub-layers, with which the user comes into contact, can be made of a material chosen for its pleasant side, soft to the touch, and not necessarily having qualities suitable for ensuring a good weld. These multilayer structures can be obtained by methods well known to those skilled in the art, such as laminating or calendering.
Il est important qu'au moins la couche inférieure comprenne un matériau textile. En effet, un tel matériau favorise la prise en main de l'article conforme à l'invention par l'utilisateur, ce qui favorise une bonne application de la composition topique sur la peau. Cela est plus particulièrement important encore quand la composition topique est appliquée sur le visage où il convient qu'elle soit soigneusement et précisément étalée, notamment dans les plis du visage. En outre, le matériau textile, de contact agréable, rend le produit acceptable à l'utilisateur, particulièrement exigeant lorsqu'il s'agit de produit cosmétique ou pharmaceutique.It is important that at least the bottom layer comprises a textile material. Indeed, such a material promotes the user to take hold of the article according to the invention, which promotes good application of the topical composition to the skin. This is more particularly important when the topical composition is applied to the face where it should be carefully and precisely spread, especially in the folds of the face. In addition, the textile material, with pleasant contact, makes the product acceptable to the user, particularly demanding when it is a cosmetic or pharmaceutical product.
Au sens de la présente invention, un matériau est perméable vis- à-vis d'une composition topique quand cette dernière peut passer au travers des pores de ce matériau. Le matériau textile tissé ou non tissé mis en œuvre peut présenter un grammage compris entre 20 et 250 g/m2, de préférence entre 100 et 180 g/m2 (norme ISO 9073-1 ).Within the meaning of the present invention, a material is permeable with respect to a topical composition when the latter can pass through the pores of this material. The woven or non-woven textile material used can have a grammage of between 20 and 250 g / m 2 , preferably between 100 and 180 g / m 2 (standard ISO 9073-1).
Un article selon l'invention peut ne comprendre qu'une seule capsule contenant la composition topique. Toutefois, généralement, on met en œuvre plusieurs capsules de petite taille, comprenant chacune une fraction de la composition topique. Ces capsules de petites tailles présentent généralement un diamètre moyen compris entre 0,5 et 5 mm, de préférence entre 1 et 2,5 mm. L'enveloppe de ces capsules peut être constituée d'un colloïde hydrophile comme l'albumine, les alginates, la caséine, les pectines, l'amidon, la gélatine ou de dérivés de la cellulose comme l'éthyl cellulose, la nitrocellulose, l'acétate de cellulose, de shellac, d'acide polyacrylique, d'acide polyméthacrylique, de polysaccharides, de dérivés polyvinyliques, de polycarbonate ou de polystyrène. La gélatine est un constituant préféré de l'enveloppe des capsules. La gélatine peut être notamment de la gélatine porcine, bovine, ovine ou de poisson.An article according to the invention may comprise only a single capsule containing the topical composition. However, generally, several small capsules are used, each comprising a fraction of the topical composition. These small capsules generally have an average diameter of between 0.5 and 5 mm, preferably between 1 and 2.5 mm. The envelope of these capsules can consist of a hydrophilic colloid such as albumin, alginates, casein, pectins, starch, gelatin or cellulose derivatives such as ethyl cellulose, nitrocellulose, l cellulose acetate, shellac, polyacrylic acid, polymethacrylic acid, polysaccharides, polyvinyl derivatives, polycarbonate or polystyrene. Gelatin is a preferred constituent of the capsule shell. The gelatin can in particular be porcine, bovine, ovine or fish gelatin.
Le taux d'encapsulation, c'est à dire, le rapport pondéral entre la composition topique contenue dans chaque capsule et le poids total de la capsule est habituellement compris entre 80 et 99 %. Les capsules, en vue de libérer la composition qu'elles contiennent, doivent être cassables par simple pliage de l'article conforme à l'invention et pression de la main. Selon un autre avantage de l'invention, l'utilisateur, lorsqu'il casse les capsules au travers desdites couches, ressent une sensation agréable.The degree of encapsulation, that is to say, the weight ratio between the topical composition contained in each capsule and the total weight of the capsule is usually between 80 and 99%. The capsules, in order to release the composition which they contain, must be breakable by simple folding of the article in accordance with the invention and pressure by hand. According to another advantage of the invention, the user, when he breaks the capsules through said layers, feels a pleasant sensation.
La quantité de capsules par article selon l'invention est choisie en fonction de la dose de composition topique désirée et du taux d'encapsulation. La dose de composition topique est elle-même fonction de la nature et de la destination de cette composition.The quantity of capsules per article according to the invention is chosen according to the dose of topical composition desired and the rate of encapsulation. The dose of topical composition is itself a function of the nature and the destination of this composition.
La préparation de ces capsules est, en elle-même, bien connue de l'homme du métier. A cet égard, on pourra se référer, par exemple, aux brevets US 3.691.090, US 5.051.304 ou US 4.752.496, dont l'enseignement est intégré à la présente description. Plus particulièrement, les capsules peuvent être préparées par coacervation, au moyen d'un agent coacervant. A titre d'agent coacervant on peut citer des solutions aqueuses d'électrolytes qui contiennent des sels organiques et/ou inorganiques comme, par exemple des sels de métaux alcalins, alcalino-terreux ou l'ammonium, des sels à anions organiques ou inorganiques tels que les sulfates, les polyphosphates, l'acétate et le formate. L'hexamétaphosphate de sodium est un agent coacervant convenant plus particulièrement. Les capsules obtenues par cette méthode peuvent être fragiles, notamment au moment de leur extraction hors du milieu réactionnel où elles sont formées. Afin de les rendre moins fragiles et diminuer leur solubilité, on peut ajouter audit milieu réactionnel un agent réticulant comme le glutaraldéhyde ou le formaldéhyde.The preparation of these capsules is, in itself, well known to those skilled in the art. In this regard, reference may be made, for example, to patents US 3,691,090, US 5,051,304 or US 4,752,496, the teaching of which is integrated into the present description. More particularly, the capsules can be prepared by coacervation, by means of a coacervating agent. AT as coacervating agent, there may be mentioned aqueous solutions of electrolytes which contain organic and / or inorganic salts such as, for example, alkali metal, alkaline earth metal or ammonium salts, salts with organic or inorganic anions such as sulfates, polyphosphates, acetate and formate. Sodium hexametaphosphate is a particularly suitable coacervating agent. The capsules obtained by this method can be fragile, especially when they are extracted from the reaction medium where they are formed. In order to make them less fragile and reduce their solubility, a crosslinking agent such as glutaraldehyde or formaldehyde can be added to said reaction medium.
La composition topique se présente habituellement sous forme liquide, pâteuse, semi-pâteuse ou de gel. Elle peut consister en une composition cosmétique, en particulier un produit de maquillage, un produit de soin de la peau, un produit d'hygiène ou de nettoyage de la peau. Le produit de maquillage peut notamment consister en un fond de teint. Le produit d'hygiène ou de nettoyage de la peau peut consister en un démaquillant. La composition topique peut encore consister en un parfum sous forme d'une huile essentielle, d'une solution hydroalcoolique, voire d'une émulsion. La composition topique peut également consister en une composition pharmaceutique, en particulier un produit dermopharmaceutique ou ophtalmique.. Ces compositions topiques sont connues en elles-mêmes et comprennent des principes actifs et/ou des excipients conventionnels.The topical composition is usually in liquid, pasty, semi-pasty or gel form. It can consist of a cosmetic composition, in particular a make-up product, a skin care product, a hygiene or skin cleansing product. The makeup product may in particular consist of a foundation. The skin hygiene or cleaning product can consist of a makeup remover. The topical composition can also consist of a perfume in the form of an essential oil, a hydroalcoholic solution, or even an emulsion. The topical composition may also consist of a pharmaceutical composition, in particular a dermopharmaceutical or ophthalmic product. These topical compositions are known in themselves and include active principles and / or conventional excipients.
Un article conforme à l'invention présente habituellement une épaisseur comprise entre 5 et 20 mm. Il peut être de forme rectangulaire, triangulaire carrée ou circulaire. Le diamètre ou côté le plus long d'un tel article est habituellement compris entre 1 et 10 cm. L'épaisseur de chacune desdites couches supérieure et inférieure peut être comprise entre 0,5 et 4 mm, de préférence entre 1 et 3 mm.An article according to the invention usually has a thickness of between 5 and 20 mm. It can be rectangular, triangular square or circular. The longest diameter or side of such an article is usually between 1 and 10 cm. The thickness of each of said upper and lower layers may be between 0.5 and 4 mm, preferably between 1 and 3 mm.
La figure unique représente un article 1 selon l'invention, comprenant une couche inférieure 2 imperméable constituée d'une sous- couche externe 3 en cellulose naturelle non-tissée et d'une sous-couche interne 4 constituée d'un film en polyéthylène, sur laquelle sont déposées des capsules 5 contenant une composition topique, ainsi qu'une couche supérieure perméable 6 en un textile non tissé constituée d'une sous-couche interne 7 en polyester et d'une sous-couche externe 8 à base d'un mélange de 30% en poids de fibre de polyester et de 70% en poids de fibres de viscose. Les couches supérieure et inférieure sont reliées bord à bord par une soudure 9.The single FIGURE represents an article 1 according to the invention, comprising an impermeable lower layer 2 consisting of an external sublayer 3 of natural non-woven cellulose and an internal sublayer 4 consisting of a polyethylene film, on which capsules are placed 5 containing a topical composition, as well as a permeable upper layer 6 made of a nonwoven fabric consisting of an inner underlay 7 of polyester and an outer under coat 8 based on a mixture of 30% by weight polyester fiber and 70% by weight of viscose fibers. The upper and lower layers are connected edge to edge by a weld 9.
En vue de son utilisation, on peut casser les capsules de l'article conforme à l'invention en le pliant et en le pressant avec les doigts, pour que la composition topique, ainsi activée, migre au travers de la couche supérieure perméable. On peut alors avantageusement appliquer cette composition topique et l'étaler sur la peau à l'aide du matériau textile constitutif de la couche supérieure, sans qu'elle n'entre au contact de la main ou des doigts de l'utilisateur.In view of its use, the capsules of the article according to the invention can be broken by folding it and pressing it with the fingers, so that the topical composition, thus activated, migrates through the permeable upper layer. This topical composition can then advantageously be applied and spread over the skin using the textile material constituting the upper layer, without it coming into contact with the user's hand or fingers.
Selon un autre aspect de l'invention, celle-ci consiste en un procédé de préparation d'un article tel que défini plus haut. Selon ce procédé, on dépose la (ou les) capsule(s) comprenant la composition topique sur la surface interne de l'une d'entre la couche supérieure et la couche inférieure constitutives dudit article. Puis on superpose l'autre couche bord à bord avec celle sur laquelle on a déposé la (ou les) capsule(s) et on soude les deux couches entre-elles, bord à bord, au niveau de leur périphérie. La soudure peut être réalisée par chauffage, par ultrasons, par collage, par onde à haute fréquence ou par compression mécanique. Lorsque la soudure est réalisée par chauffage, par ultrasons ou par onde à haute fréquence, il est requis que les couches inférieures et supérieures soient, au moins au niveau de leur périphérie, constituée d'un matériau thermofusible ou thermoplastique.According to another aspect of the invention, it consists of a process for preparing an article as defined above. According to this method, the capsule (s) comprising the topical composition are deposited on the internal surface of one of the upper layer and the lower layer constituting said article. Then the other layer edge to edge is superimposed with the layer on which the capsule (s) have been deposited and the two layers are welded together, edge to edge, at their periphery. Welding can be carried out by heating, by ultrasound, by bonding, by high frequency wave or by mechanical compression. When the welding is carried out by heating, ultrasound or high frequency wave, it is required that the lower and upper layers are, at least at their periphery, made of a hot-melt or thermoplastic material.
Un article conforme à l'invention peut être conditionné dans une enveloppe en matériau plastique ou en un matériau bi-couche comprenant une face externe métallique, par exemple en aluminium, et une face interne plastique, pouvant contenir un ou plusieurs desdits articles. Les exemples qui suivent ont pour objet d'illustrer la présente invention. Exemple 1 : Article comportant un fond de teint encapsuléAn article in accordance with the invention can be packaged in an envelope made of plastic material or a two-layer material comprising an external metallic face, for example aluminum, and an internal plastic face, which can contain one or more of said articles. The following examples are intended to illustrate the present invention. Example 1: Article comprising an encapsulated foundation
a) On a préparé un fond de teint anhydre ayant la composition suivante : - Triglycéride caprilique/caprique 19,5 ga) An anhydrous foundation was prepared having the following composition: - Caprilic / capric triglyceride 19.5 g
- Palmitate éthyl-2 hexyl 11 g- Palmitate ethyl-2 hexyl 11 g
- Cétostéaryl octanoate 19,5 g- Ketostearyl octanoate 19.5 g
- Huile de coco hydrogénée 5 g- Hydrogenated coconut oil 5 g
- Phénoxyéthanol 1 ,45 g - Octyl méthoxycinnamate 1 g- Phenoxyethanol 1.45 g - Octyl methoxycinnamate 1 g
- Palmitate d'ascorbyl 0,2 g- Ascorbyl palmitate 0.2 g
- EDTA poudre 0,05 g- EDTA powder 0.05 g
- Diméthyl distéaryl ammonium bentonite 0,3 g- Dimethyl distearyl ammonium bentonite 0.3 g
- Silice 5 g - Mica 4 g- Silica 5 g - Mica 4 g
- Talc micronisé 20 moos 2 g- Micronized talc 20 moos 2 g
- Nylon 12 6 g- Nylon 12 6 g
- Pigments 25 g- Pigments 25 g
b) Encapsulation du fond de teint : dans un bêcher de 600 ml on a dissout 5 g de gélatine porcine dans 130 g d'eau, on a laissé gonfler et on a porté le mélange à 55°C (température maintenue constante durant toute l'opération au moyen d'un bain- marie), sous une agitation de 220 tr/min. . L'agitation a été maintenue constante de manière à obtenir des capsules de 1000 μm de diamètre en moyenne. On a ajouté 25 ml du fond de teint anhydre préchauffé à 55°C et on a émulsionné pendant 2 minutes. On a ajouté 20 ml à d'hexamétaphosphate de sodium à 0,5% dissous dans 90 ml d'eau distillée et préchauffée à 55°C.b) Encapsulation of the foundation: in a 600 ml beaker, 5 g of porcine gelatin were dissolved in 130 g of water, the mixture was allowed to swell and the mixture was brought to 55 ° C. (temperature kept constant throughout (operation by means of a water bath), with stirring at 220 rpm. . The stirring was kept constant so as to obtain capsules with an average diameter of 1000 μm. 25 ml of anhydrous foundation, preheated to 55 ° C, was added and emulsified for 2 minutes. 20 ml was added to 0.5% sodium hexametaphosphate dissolved in 90 ml of distilled water and preheated to 55 ° C.
On a ajusté le pH du milieu réactionnel avec de l'acide citrique 1 N de manière à l'abaisser jusqu'à une valeur de 4-5. On a vérifié au microscope que la coacervation a bien lieu. On a coupé le chauffage et on est revenu à la température ambiante sous agitation pendant 1 H30 environ. On a continué à abaisser la température jusqu'à 15°C environ avec de la glace, puis on a ajouté 10 ml de glutaraldéhyde à 1 ,5% et on a laissé agir pendant 2 heures sous agitation ; cette durée correspond au temps de réticulation et permet de solidifier les capsules. On a ajouté une spatule de silice très fine afin d'éviter que les capsules ne collent entre elles. On a laissé décanter, puis on a filtré et on a rincé les capsules avec de l'eau distillée. On a conservé les capsules dans de l'eau contenant 0,5% d'agent conservateur.The pH of the reaction medium was adjusted with 1 N citric acid so as to lower it to a value of 4-5. We have checked under the microscope that the coacervation takes place. The heating was turned off and returned to room temperature with stirring for about 1 hour 30 minutes. The temperature was further lowered to about 15 ° C with ice, then 10 ml of 1.5% glutaraldehyde was added and allowed to act for 2 hours with stirring; this duration corresponds to the crosslinking time and allows the capsules to solidify. A very fine silica spatula was added to prevent the capsules from sticking together. It was left to settle, then it was filtered and the capsules were rinsed with distilled water. The capsules were stored in water containing 0.5% preservative.
c) Préparation de l'article comportant un fond de teint encapsulé :c) Preparation of the article comprising an encapsulated foundation:
On a déposé 4 g des capsules préparées selon le procédé ci- dessus, sur la sous-couche interne, en polyester non tissée, d'une couche perméable comprenant également une sous-couche externe constituée d'un matériau textile non tissé à base d'un mélange comprenant 30% en poids de fibres polyester et 70% en poids de fibres de viscose. Puis on a déposé sur cette couche, bord à bord, une couche imperméable comprenant une sous- couche interne constituée d'un film en polyéthylène et d'une sous-couche externe en cellulose naturelle non tissée.4 g of the capsules prepared according to the above process were deposited on the internal non-woven polyester undercoat with a permeable layer also comprising an external undercoat made of a non-woven textile material based on 'A mixture comprising 30% by weight of polyester fibers and 70% by weight of viscose fibers. Then, on this layer, edge to edge, an impermeable layer was deposited comprising an inner sublayer consisting of a polyethylene film and an outer sublayer of nonwoven natural cellulose.
On a ensuite procédé à la soudure entre les périphéries des deux couches par ultrasons. On a ainsi obtenu un article conforme à l'invention qui permet, par simple pliage et pression, d'activer les capsules, suite à quoi le fond de teint migre au travers de la couche perméable pour arriver au contact de la peau.The welding was then carried out between the peripheries of the two layers by ultrasound. An article according to the invention was thus obtained which allows, by simple folding and pressure, to activate the capsules, after which the foundation migrates through the permeable layer to arrive in contact with the skin.
Les exemples 2 à 4 concernent des articles conformes à l'invention, comportant des compositions cosmétiques diverses. Ces articles ont été préparés selon le procédé décrit dans l'exemple 1. Ils ne diffèrent de l'article selon l'exemple 1 que par la nature même de la composition topique, seule explicitée dans ces exemples 2 à 4.Examples 2 to 4 relate to articles in accordance with the invention, comprising various cosmetic compositions. These articles were prepared according to the method described in example 1. They differ from the article according to example 1 only in the very nature of the topical composition, the only one explained in these examples 2 to 4.
Exemple 2 : Article comportant un fond de teint classique encapsulé On a préparé un fond de teint classique ayant la composition suivante :Example 2: Article comprising a conventional encapsulated foundation A classic foundation was prepared having the following composition:
PEG-8-beeswax 8%PEG-8-beeswax 8%
Huile de vaseline 10%Vaseline oil 10%
Diperlagonate de propylène glycol (DPPG) 8%Propylene glycol dipiperlagonate (DPPG) 8%
Alcool cétylique 1 ,5%Cetyl alcohol 1.5%
Isostéarate d'isostéaryl 2% 0 Acide stéarique 2%Isostearyl isostearate 2% 0 Stearic acid 2%
Pigment broyé 6%Crushed pigment 6%
Eau qsp 100Water qs 100
Exemple 3 : Article comportant une formule d'une émulsion huile dans eau encapsuléeExample 3: Article comprising a formula of an encapsulated oil-in-water emulsion
On a préparé une formule d'une émulsion huile dans eau ayant la composition suivante :A formula of an oil-in-water emulsion having the following composition was prepared:
Huile de vaseline 25%Vaseline oil 25%
Alcool stéarylique (20E) 3,4%Stearyl alcohol (20E) 3.4%
Alcool stéarylique (21 OE) 1 ,6%Stearyl alcohol (21 EO) 1.6%
Triethanolamine 0,25%0.25% triethanolamine
Carbopol ETD 2020 1(polymère acrylique) 0,25%Carbopol ETD 2020 1 (acrylic polymer) 0.25%
Phénoxy-2-éthnol 0,4%Phenoxy-2-ethnol 0.4%
Propylène glycol 4% Eau qsp 100Propylene glycol 4% Water qs 100
1 Commercialisé par la société Goodrich Exemple 4 : Article comportant une formule d'émulsion eau dans huile 1 Marketed by Goodrich Example 4: Article comprising a water-in-oil emulsion formula
On a préparé une formule d'émulsion eau dans huile ayant la composition suivante :A water-in-oil emulsion formula having the following composition was prepared:
Triglycérides caprylique caprique 19,5%Caprylic caprylic triglycerides 19.5%
Alcool stéarylique polypropoxylé 7,5% PEG-30 dipolyhydroxystearate 4%Polypropoxylated stearyl alcohol 7.5% PEG-30 dipolyhydroxystearate 4%
Huile vaseline 5%Vaseline oil 5%
Parsol MCS 2(2-Ethylhexyl-methoxycinnamate) 1 %Parsol MCS 2 (2-Ethylhexyl-methoxycinnamate) 1%
Oxynex LM 3 (antioxydant) 0,2% Phenoxyéthanol 1 %Oxynex LM 3 (antioxidant) 0.2% Phenoxyethanol 1%
NaCI 1 %NaCI 1%
Eau qsp 100Water qs 100
2 commercialisé par la société Givaudan 3 commercialisé par la société Merck 2 marketed by Givaudan 3 marketed by Merck

Claims

REVENDICATIONS
1. Article pour l'application d'une composition topique cosmétique ou pharmaceutique, caractérisé en ce qu'il comporte :1. Article for the application of a cosmetic or pharmaceutical topical composition, characterized in that it comprises:
(i) une couche supérieure perméable à la composition topique,(i) an upper layer permeable to the topical composition,
(ii) une couche inférieure, comprenant un matériau textile, imperméable à la composition topique, les deux couches étant superposées bord à bord et maintenues solidaires par soudure de leur périphérie de sorte à délimiter un espace dans lequel est logé au moins une capsule contenant la composition topique.(ii) a lower layer, comprising a textile material, impermeable to the topical composition, the two layers being superimposed edge to edge and held together by welding of their periphery so as to delimit a space in which is housed at least one capsule containing the topical composition.
2. Article selon la revendication 1 , caractérisé en ce que la couche supérieure comprend un matériau textile.2. Article according to claim 1, characterized in that the upper layer comprises a textile material.
3. Article selon l'une des revendications 1 et 2, caractérisé en ce que la couche inférieure et la couche supérieure comprennent chacune un matériau textile non tissé.3. Article according to one of claims 1 and 2, characterized in that the lower layer and the upper layer each comprise a non-woven textile material.
4. Article selon l'une des revendications 1 à 3, caractérisé en ce que la couche inférieure est constituée d'une structure multi-couches comprenant une sous-couche interne imperméable et une sous-couche externe en un matériau textile.4. Article according to one of claims 1 to 3, characterized in that the lower layer consists of a multi-layer structure comprising an impermeable inner sublayer and an outer sublayer of a textile material.
5. Article selon la revendication 4, caractérisé en ce que la sous- couche interne imperméable est constituée d'un film en un matériau polymère, de préférence le polyéthylène.5. Article according to claim 4, characterized in that the impermeable inner sub-layer consists of a film of a polymeric material, preferably polyethylene.
6. Article selon l'une des revendications 4 et 5, caractérisé en ce que la sous-couche externe est en cellulose.6. Article according to one of claims 4 and 5, characterized in that the outer sub-layer is made of cellulose.
7. Article selon l'une des revendications 1 à 6, caractérisé en ce que la composition topique est liquide, pâteuse ou semi-pâteuse ou sous forme de gel.7. Article according to one of claims 1 to 6, characterized in that the topical composition is liquid, pasty or semi-pasty or in the form of gel.
8. Article selon l'une des revendications 1 à 7, caractérisé en ce que la composition topique est une composition cosmétique.8. Article according to one of claims 1 to 7, characterized in that the topical composition is a cosmetic composition.
9. Article selon l'une des revendications 1 à 7, caractérisé en ce que la composition topique est une composition pharmaceutique, en particulier dermatologique ou ophtalmologique. 9. Article according to one of claims 1 to 7, characterized in that the topical composition is a pharmaceutical composition, in particular dermatological or ophthalmological.
10. Article selon la revendication 8, caractérisé en ce que la composition cosmétique est un produit de maquillage, un produit de soin de la peau, d'hygiène ou de nettoyage de la peau.10. Article according to claim 8, characterized in that the cosmetic composition is a make-up product, a product for skin care, hygiene or skin cleansing.
11. Article selon la revendication 10, caractérisé en ce que le produit de maquillage est un fond de teint.11. Article according to claim 10, characterized in that the makeup product is a foundation.
12. Article selon la revendication 10, caractérisé en ce que le produit d'hygiène ou de nettoyage de la peau est un démaquillant.12. Article according to claim 10, characterized in that the hygiene or skin cleaning product is a makeup remover.
13. Article selon l'une des revendications 1 à 12, caractérisé en ce qu'il comprend plusieurs capsules, le diamètre moyen de chacune de ces capsules étant compris entre 0,5 et 5 mm.13. Article according to one of claims 1 to 12, characterized in that it comprises several capsules, the average diameter of each of these capsules being between 0.5 and 5 mm.
14. Article selon l'une des revendications 1 à 13, caractérisé en ce que l'enveloppe de la capsule est constituée d'un colloïde hydrophile14. Article according to one of claims 1 to 13, characterized in that the envelope of the capsule consists of a hydrophilic colloid
15. Article selon la revendication 14, caractérisé en ce que l'enveloppe de la capsule est constituée de gélatine. 15. Article according to claim 14, characterized in that the envelope of the capsule consists of gelatin.
16. Procédé de préparation d'un article selon l'une des revendications 1 à 15, caractérisé en ce que l'on dépose une ou plusieurs capsules comprenant une composition topique sur la surface interne de l'une d'entre la couche supérieure et la couche inférieure, puis on superpose l'autre couche bord à bord et on soude les deux couches entre elles au niveau de leur périphérie.16. Method for preparing an article according to one of claims 1 to 15, characterized in that one or more capsules comprising a topical composition are deposited on the internal surface of one of the upper layer and the lower layer, then the other layer is superimposed edge to edge and the two layers are welded together at their periphery.
17. Procédé selon la revendication 16, caractérisé en ce que la soudure est réalisée par chauffage, par ultra sons, par collage, par ondes à haute fréquence ou par compression mécanique.17. The method of claim 16, characterized in that the welding is carried out by heating, by ultrasound, by bonding, by high frequency waves or by mechanical compression.
18. Utilisation d'un article selon l'une des revendication 1 à 15 pour l'application sur la peau d'une composition topique cosmétique. 18. Use of an article according to one of claims 1 to 15 for the application to the skin of a topical cosmetic composition.
EP00949661A 1999-07-09 2000-07-06 Article for applying a topical composition and method for preparing same Withdrawn EP1199956A1 (en)

Applications Claiming Priority (5)

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US502464 1990-03-30
FR9908952 1999-07-09
FR9908952A FR2795928B1 (en) 1999-07-09 1999-07-09 ARTICLE FOR THE APPLICATION OF A TOPICAL COMPOSITION AND ITS PREPARATION METHOD
US50246400A 2000-02-11 2000-02-11
PCT/FR2000/001953 WO2001003538A1 (en) 1999-07-09 2000-07-06 Article for applying a topical composition and method for preparing same

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KR20020096039A (en) 2002-12-28

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