EP1382536B1 - Device for the extemporaneous mixture of at least two products - Google Patents

Device for the extemporaneous mixture of at least two products Download PDF

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Publication number
EP1382536B1
EP1382536B1 EP03291530A EP03291530A EP1382536B1 EP 1382536 B1 EP1382536 B1 EP 1382536B1 EP 03291530 A EP03291530 A EP 03291530A EP 03291530 A EP03291530 A EP 03291530A EP 1382536 B1 EP1382536 B1 EP 1382536B1
Authority
EP
European Patent Office
Prior art keywords
compartment
product
overpressure
dividing member
compartments
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP03291530A
Other languages
German (de)
French (fr)
Other versions
EP1382536A1 (en
Inventor
Vincent De Laforcade
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
LOreal SA
Original Assignee
LOreal SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from FR0208915A external-priority patent/FR2843100A1/en
Application filed by LOreal SA filed Critical LOreal SA
Publication of EP1382536A1 publication Critical patent/EP1382536A1/en
Application granted granted Critical
Publication of EP1382536B1 publication Critical patent/EP1382536B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
    • B65D81/32—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents for packaging two or more different materials which must be maintained separate prior to use in admixture
    • B65D81/3205—Separate rigid or semi-rigid containers joined to each other at their external surfaces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
    • B65D81/32—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents for packaging two or more different materials which must be maintained separate prior to use in admixture
    • B65D81/3205—Separate rigid or semi-rigid containers joined to each other at their external surfaces
    • B65D81/3211—Separate rigid or semi-rigid containers joined to each other at their external surfaces coaxially and provided with means facilitating admixture

Definitions

  • the present invention relates to a device for packaging at least one cosmetic product.
  • the invention is aimed in particular at a device for the extemporaneous mixing of at least two products in order to produce a composition, in particular a cosmetic composition, as used for example in the field of hair dyeing.
  • the device may in particular be of the type comprising a container containing the product, the distribution of the latter being obtainable in response to a pressure exerted on the walls of the container, or by means of a manually operated pump equipping the device.
  • devices of this type it may be desirable, especially with certain products having a high propensity to dry or oxidize in contact with air, to ensure the sealing of the device dispensing orifice. so that any residual product located in the ducts located upstream of the dispensing orifice is kept out of the air.
  • the preparation of a large number of dyeing compositions involves the extemporaneous mixing of two (or even three) products (a dye, an oxidant, optionally a perfume) which, for reasons of of stability must be kept apart from each other until the moment of use of the coloring composition.
  • At least one of the products may be in the form of a powder.
  • each of the products to be mixed is packaged in a packaging of its own, in particular in the form of a tube or a bag.
  • the consumer pours the contents of one of the packages into the other, or the contents of the two packages in a third, within which the mixture is made.
  • EP 0 606 429 discloses a two-chamber mixing system insulated by a first rubber piston which, in response to a pressure exerted by a second piston, is pushed from a first position in which it isolates the two products to a single position. second position in which it delimits, in combination with an inner surface of a throttling zone separating the two chambers, a passage capable of allowing the two products to come into contact with one another.
  • the device is defined by the features of claim 1 divided into two parts with respect to the prior art according to US-A-2002/0 066 750.
  • fluids hydroaulic or liquid or "pneumatic” (air).
  • the passage may be a passage located upstream of an outlet of the device, which passage, outside the product distribution phases, must be kept closed as tightly as possible, to prevent any residual product located upstream of the outlet orifice does not dry or oxidize on contact with air.
  • the passage may be a passage formed between two compartments formed by the device.
  • the device delimits a first compartment containing a first product, and a second compartment, adapted to be disposed at least partly above the first, and containing a second product, a first separation member being adapted to pass from a first position in which it isolates the first product of the second to a second position in which the first product is brought into contact with the second, the device being configured so that the passage of the first separation member from the first to the second position results, at the sensible balance of pressures between the first and second compartments, a volume reduction, especially multidirectional, said first separation member in response to an overpressure generated within one and / or the other of said first and second compartments.
  • the separation member is such that it ensures the physical separation of the two products. On the other hand, it must allow the balance of pressures to be made.
  • at least the product contained in the second compartment and which, when the second compartment is above the first compartment, rests on the separating member, is preferably in the form of a powder.
  • the other product can be in particular in liquid form.
  • a low overpressure is sufficient to cause the passage of the latter from the first to the second position.
  • the volume reduction is reflected at least by a reduction of the surface of the first separation member, transversely to a longitudinal axis of the device, and this over its entire axial height.
  • the separating member in the first position, the separating member is sufficiently large diameter to hold in place by slight tightening, despite the weight of the second product disposed above.
  • the separating member compresses in all directions, in particular radially to its axis. As a result, it is no longer clamping, and, under the effect of its weight, added to the weight of the second product, it falls with it into the first container. The two products are then in contact with each other.
  • the pressure exerted on the separating member being substantially uniform over its entire outer surface, there is also a slight decrease in the axial height of the separating member. In the latter case, the volume reduction is multidirectional.
  • the separating member is made of a material capable of shrinking under the effect of this overpressure, it is therefore able to reduce volume.
  • the overpressure is generated in the first compartment when the latter is below the second, the level of first product in the first compartment being such that the passage from the first to the second position takes place before the first product comes into contact with said first separation member.
  • the pressure exerted on the separating member is pneumatic.
  • the overpressure can be exerted on the compartment disposed above the other.
  • the product contained in the compartment above is a liquid, of density greater than the density of the material forming the separating member, then, in response to the overpressure, the separating member decreases in volume, and is no longer held in the position where it isolates the two compartments. It then rises to the surface of the liquid as it mixes with the product contained in the other compartment.
  • the pressure exerted on the separation member is hydraulic.
  • the first separation member is constituted at least in part by an element formed of an elastically compressible material in response to said overpressure, and at least a portion of the outer surface is impermeable.
  • waterproof is meant to be impermeable to the pressurizing fluid, in particular to air.
  • the material is a closed-cell foam material. It may be in particular a polyethylene foam, polyester or polyurethane.
  • said first separating member floats on the surface of the mixture.
  • the separation member does not disturb the distribution of the mixture.
  • the first separating member is preferably disposed inside a passage formed between the first and second compartments and is, prior to said overpressure, maintained in said first position, by partial compression in at least one direction transverse to said passage, in contact with an inner surface delimiting said passage. Despite this slight compression of the separation member, the air can pass between the lateral surface of the separating member and the inner surface of the passage, thus allowing the achievement of pressure equilibrium.
  • the pressure of the first compartment and the second compartment are substantially identical and each in excess pressure relative to the initial pressure of these compartments.
  • the separating member disposed between these two compartments is in fact compressed in at least two opposite directions, for example the pressure is at least applied to two opposite sides of this member coming into contact with the inner surface of the passage
  • At least one of the walls delimiting one and / or the other of said first and second compartments is elastically deformable so as to be able to generate said overpressure in response to a pressure exerted, laterally or axially, on said resiliently deformable wall.
  • At least a portion of one and / or the other of said first and second compartments may form a bellows.
  • the pressure to exert is axial.
  • the compartment inside which the overpressure is generated is delimited by a container with elastically compressible walls.
  • the pressure to be exerted is transverse to the axis.
  • the first compartment is delimited by a first container, the second compartment being delimited by a second container, adapted to be mounted on the first, in particular by screwing or snapping.
  • the second container then has an opening which, when said first separator member is in the first position, is isolated from the second product by said first separator member.
  • said opening prior to mounting the second container on the first, is closed removably by means of closure, in particular in the form of a plug, in particular screwed.
  • Means are provided for, prior to mounting the second container on the first, maintain in a fixed position said first member separation.
  • the cap As long as the cap is in place on the second container, it axially immobilizes the separating member. Once the cap is removed, when positioning the second container above the first, the second product is retained within the second container by the separating member.
  • the second compartment is delimited by an element forming an applicator tip for mixing said products.
  • the second compartment is able to communicate with a dispensing orifice which, prior to mixing, is closed by a closure member, in particular in the form of a self-breaking element.
  • the device forms a third compartment adapted to be disposed at least partly above the second and containing a third product, said first, second and third products being isolated in pairs by said first separation member. and by a second separating member, said first and second separating members being adapted to pass each of a first position in which they isolate two by two said first, second and third products, at a second position in which the three products are brought into contact with each other, the passage of the first and second separating member from the first position to the second resulting, the sensible balance of pressures between the compartments they respectively separate, a volume reduction multidirectional of said first and second separation member in response to an overpressure generated within one and or the other of said first, second and third compartments.
  • the mixture is made by positioning the device so that the second compartment is above the first, the third, above the second, and pressurizing the first.
  • the second and third products may be packaged separately from each other, in the same container, in particular in an applicator tip.
  • the (or) product (s) contained in the (or) compartment (s) other (s) than that inside which is generated said overpressure is (are) in powder form.
  • the first product may be an oxidant in liquid form.
  • the second product may be a dye in the form of a powder.
  • the third product may be a perfume composition, in the form of a powder as well.
  • the present application relates to a device for the extemporaneous mixing of at least two products, the device forming a first compartment containing a first product and a second compartment, adapted to be arranged at least partly above the first, and containing a second product, a separating member being adapted to move from a first position in which it isolates the first product from the second to a second position in which the first product is brought into contact with the second, the device being configured to so that the passage of the separating member from the first position to the second results from an overpressure generated in one or the other of said first and second compartments, characterized in that said separating member, when its passage from the first position to the second, moves towards the compartment inside which the overpressure is generated.
  • the device according to the invention can be used for producing a mixture intended to form a cosmetic composition, in particular for hair dyeing.
  • the device 1 shown in Figures 1 and 2 comprises a container 2, one end terminates in a bottom 3. A portion 4 of the body of the container, adjacent to the bottom 3, is configured as a bellows.
  • the container 2 delimits a housing 9 intended to contain a coloring oxidant in liquid form.
  • the end of the container opposite the bottom 3 ends with a threaded neck 5 delimiting an opening 6.
  • the container 2 is obtained by extrusion blow molding of polyethylene or polypropylene.
  • the container 2 In the storage and / or transport position of the device 1, the container 2 is closed by a plug 7 whose inner surface has a thread capable of cooperating with the thread of the neck 5.
  • the plug 7 comprises a skirt tightness 8.
  • the device 1 also comprises an applicator tip 10.
  • the applicator tip 10 consists of a hollow element of elongated shape, a portion 11 of which is of progressively decreasing cross-section towards a small section opening 19, closed by a self-breaking endpiece 40.
  • the applicator tip 10 In the vicinity of its end opposite to the self-breaking end 40, the applicator tip 10 comprises a first cylindrical portion 13, of greater diameter than the largest diameter of the portion 11, and separated from the latter by a shoulder 14.
  • the applicator tip 10 On the side of the first cylindrical portion 13, opposite the portion 11, the applicator tip 10 forms a second cylindrical portion 15 of internal diameter greater than the internal diameter of the first cylindrical portion 13. A free edge of the cylindrical portion 15 defines a opening 45 for the applicator tip 10.
  • the second cylindrical portion 15 is separated from the first 13 by a shoulder 16.
  • the inner surface of the second cylindrical portion 15 comprises a screw thread 17.
  • a sealing skirt 18, extending axially from the shoulder 16, is formed in the direction of the end of the tip 10, opposite the self-breaking tip 40.
  • the applicator tip 10 is obtained by injection of a rigid thermoplastic material, such as a polyamide, a polystyrene, a polycarbonate, a polypropylene, an acrylobutadiene styrene (ABS), or a polystyrene acrylonitrile (SAN).
  • a rigid thermoplastic material such as a polyamide, a polystyrene, a polycarbonate, a polypropylene, an acrylobutadiene styrene (ABS), or a polystyrene acrylonitrile (SAN).
  • a block of closed-cell polyurethane foam 20 is disposed inside the cylindrical portion 13.
  • the foam block 20 is of height substantially identical to that of the cylindrical portion 13. The insertion movement of the foam block inside the nozzle 10 is limited by the presence of the shoulder 14, against which abuts a surface 21 of the block of foam 20.
  • the diameter at rest of the foam block 20 is slightly greater than the internal diameter of the cylindrical portion 13 so as to be slightly compressed laterally within the cylindrical portion 13. The degree of compression is sufficient to allow the foam block 20 to hold itself inside the cylindrical portion 13 despite the weight of powder in the portion 11 of the applicator tip 10.
  • an outer surface has a thread 31 adapted to cooperate with the thread 17 of the tip 10.
  • a transverse wall 32 of plug 30 is arranged to come into substantial contact with the surface 22 of the foam block opposite the surface 21.
  • An outer wall 33 concentric with the annular wall on which the thread 31 is formed, allows the cap 30 to be handled.
  • the receptacle 2 has been stripped of its plug 7.
  • the tip 10 has been stripped of its plug 30.
  • the foam block 20 holds by slight compression inside the cylindrical portion 13 of the nozzle 10, and this, despite the weight of the powder which, therefore, is retained inside the housing 12.
  • the two products are mixed inside the container 2.
  • the foam block 20 floats on the surface of the mixture.
  • the mixture can be homogenized by stirring the device 1 adequately.
  • the mixture is conventionally applied to the hair by means of the bellows portion 4 to precipitate the exit of the mixture via the opening 19.
  • the compartment 9 is pressurized in response to a pressure exerted transversely on the deformable walls of the receptacle 2.
  • the overpressure is exerted substantially uniformly on the the entire outer surface of the foam blocks 20 and 50.
  • These are compressed in a multidirectional manner. This results in particular a reduction in their outer diameter, sufficient so that they are no longer retained within their respective cylindrical portions 13 and 41. They then fall under the effect of their weight, added to the weight of powder contained respectively in dwellings 12 and 43.
  • the three products are mixed inside the housing 9.
  • the foam blocks 20 and 50 float on the surface of the mixture.
  • the mixture can be homogenized by stirring the device 1 adequately.
  • the mixture is conventionally applied to the hair by compressing the deformable body of the container 2 to precipitate the exit of the mixture via the opening 19.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Package Specialized In Special Use (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Packages (AREA)
  • Closures For Containers (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Cosmetics (AREA)
  • Details Of Rigid Or Semi-Rigid Containers (AREA)

Abstract

The applicator unit (1), to blend together ingredients for the preparation of a cosmetic products, has at least one chamber (9,12) to hold the ingredients e.g. as a liquid and a powder. A body (20), at least partially with elastic compression, is within a passage formed by the structure. The walls (2,3) of the lower container can be squeezed by hand to develop an internal pressure to force the fluid into the passage and displace the elastic body to pass into the second container, and be delivered out of the unit through the applicator (10).

Description

La présente invention a trait à un dispositif de conditionnement d'au moins un produit cosmétique. L'invention vise en particulier un dispositif pour le mélange extemporané d'au moins deux produits en vue de réaliser une composition, notamment cosmétique, telle qu'utilisée par exemple dans le domaine de la coloration capillaire.The present invention relates to a device for packaging at least one cosmetic product. The invention is aimed in particular at a device for the extemporaneous mixing of at least two products in order to produce a composition, in particular a cosmetic composition, as used for example in the field of hair dyeing.

D'autres applications toutefois peuvent être envisagées. Le dispositif peut en particulier être du type comportant un récipient contenant le produit, la distribution de ce dernier pouvant être obtenue en réponse à une pression exercée sur les parois du récipient, ou au moyen d'une pompe à actionnement manuel équipant le dispositif. Avec des dispositifs de ce type, il peut être souhaitable, notamment avec certains produits ayant une forte propension à sécher ou à s'oxyder au contact de l'air, de s'assurer de la fermeture étanche de l'orifice de distribution du dispositif de sorte que tout produit résiduel situé dans les conduits situés en amont de l'orifice de distribution soit maintenu à l'abri de l'air.Other applications however can be envisaged. The device may in particular be of the type comprising a container containing the product, the distribution of the latter being obtainable in response to a pressure exerted on the walls of the container, or by means of a manually operated pump equipping the device. With devices of this type, it may be desirable, especially with certain products having a high propensity to dry or oxidize in contact with air, to ensure the sealing of the device dispensing orifice. so that any residual product located in the ducts located upstream of the dispensing orifice is kept out of the air.

Dans d'autres domaines, tels que celui de la coloration capillaire, la préparation de bon nombre de compositions de coloration implique le mélange extemporané de deux (voire trois) produits (un colorant, un oxydant, éventuellement un parfum) qui, pour des raisons de stabilité doivent être maintenus à l'écart l'un de l'autre jusqu'au moment de l'utilisation de la composition de coloration. L'un au moins des produits peut être sous forme d'une poudre.In other fields, such as that of hair dyeing, the preparation of a large number of dyeing compositions involves the extemporaneous mixing of two (or even three) products (a dye, an oxidant, optionally a perfume) which, for reasons of of stability must be kept apart from each other until the moment of use of the coloring composition. At least one of the products may be in the form of a powder.

Ces dernières années ont vu, dans le domaine de la coloration capillaire, l'apparition de dispositifs de mélange, permettant, de manière plus ou moins automatique, le conditionnement séparé de deux produits, et leur mélange extemporané au moment de l'utilisation de la composition de coloration. A titre purement illustratif, un dispositif de ce type est décrit dans la demande de brevet FR-A-2 708 913.In recent years have seen, in the field of hair coloring, the appearance of mixing devices, allowing, more or less automatically, the separate packaging of two products, and their extemporaneous mixture at the time of use of the coloring composition. For purely illustrative purposes, a device of this type is described in patent application FR-A-2 708 913.

De tels systèmes sont coûteux et souvent parfois compliqués à réaliser. Les étanchéités entre les deux compartiments contenant chacun des produits, est parfois difficile à réaliser. En outre, il est parfois difficile de trouver des matériaux, compatibles avec les composés à conditionner, en raison de la forte agressivité d'au moins certains de ces derniers.Such systems are expensive and often sometimes complicated to achieve. The seals between the two compartments containing each product, is sometimes difficult to achieve. In addition, it is sometimes difficult to find materials, compatible with the compounds to be packaged, due to the high aggressiveness of at least some of these.

Il existe également des systèmes d'un fonctionnement plus "manuel" dans lesquels chacun des produits à mélanger est conditionné dans un conditionnement qui lui est propre, notamment sous forme d'un tube ou d'un sachet. En vue de la réalisation du mélange, le consommateur verse le contenu de l'un des conditionnements dans l'autre, ou le contenu des deux conditionnements dans un troisième, à l'intérieur duquel le mélange est réalisé.There are also systems of a more "manual" operation in which each of the products to be mixed is packaged in a packaging of its own, in particular in the form of a tube or a bag. In order to achieve mixing, the consumer pours the contents of one of the packages into the other, or the contents of the two packages in a third, within which the mixture is made.

Toutes ces opérations sont fastidieuses. Le risque est grand de se salir lors de la manipulation des produits. Le risque est grand également pour que le consommateur ne respecte pas le bon dosage et soit tenté d'utilisé les quantités nécessaires à une seule application pour deux ou plusieurs applications. Il en résulte alors une coloration des cheveux qui n'est pas conforme à celle attendue.All these operations are tedious. The risk is great to get dirty when handling products. The risk is also great for the consumer does not respect the correct dosage and is tempted to use the quantities needed for a single application for two or more applications. This results in hair coloring that does not conform to that expected.

Le brevet EP 0 606 429 décrit un système de mélange à deux chambres isolées par un premier piston en caoutchouc qui, en réponse à une pression exercée par un second piston, est poussé d'une première position dans laquelle il isole les deux produits vers une seconde position dans laquelle il délimite, en combinaison avec une surface interne d'une zone d'étranglement séparant les deux chambres, un passage apte à permettre la mise en contact des deux produits.EP 0 606 429 discloses a two-chamber mixing system insulated by a first rubber piston which, in response to a pressure exerted by a second piston, is pushed from a first position in which it isolates the two products to a single position. second position in which it delimits, in combination with an inner surface of a throttling zone separating the two chambers, a passage capable of allowing the two products to come into contact with one another.

Les inconvénients d'une telle structure sont nombreux. Ainsi, elle est difficilement adaptée au mélange de produits non liquides, en particulier sous forme de poudres. Elle est limitée à la préparation de petits volumes. Son fonctionnement n'est pas des plus confortables, en partioulier en raison de la pression importante àexercer pour forcer le piston en caoutchouc à se déformer et s'engager dans une portion dont la section transversale est de forme différente de la forme du piston.The disadvantages of such a structure are numerous. Thus, it is difficult to adapt to the mixture of non-liquid products, in particular in the form of powders. It is limited to the preparation of small volumes. Its operation is not very comfortable, in particular because of the great pressure to exert to force the rubber piston to deform and engage in a portion whose cross section is shaped differently from the shape of the piston.

Aussi, est-ce un des objets de la présente invention que de réaliser un dispositif de conditionnement, en particulier pour le mélange extemporané d'au moins deux produits, qui résolve en tout ou partie les problèmes évoqués ci-avant en référence aux systèmes conventionnels discutés ci-avant.Also, is it an object of the present invention to provide a packaging device, in particular for extemporaneous mixing of at least two products, which solves all or part of the problems mentioned above with reference to the conventional systems discussed above.

C'est en particulier un objet de l'invention que de réaliser un tel dispositif qui soit simple à utiliser et qui puisse être produit à faible coût de revient.It is particularly an object of the invention to provide such a device which is simple to use and can be produced at low cost.

C'est un autre objet de l'invention que de réaliser un tel dispositif qui limite les risques de mauvaise utilisation, et qui de ce fait, réduit les risques d'obtenir un mélange dont les propriétés ne sont pas conformes à ce qui est attendu.It is another object of the invention to provide such a device which limits the risks of misuse, and which thereby reduces the risks of obtaining a mixture whose properties do not conform to what is expected. .

D'autres objets encore apparaîtront dans la description détaillée qui suit.Still other objects will appear in the following detailed description.

Selon l'invention, le dispositif est défini par les caractéristiques de la revendication 1 divisée en deux parties à l'égard de l'art antérieur selon le document US-A-2002/0 066 750.According to the invention, the device is defined by the features of claim 1 divided into two parts with respect to the prior art according to US-A-2002/0 066 750.

Par "fluidique", on entend "hydraulique" (liquide) ou "pneumatique" (air).By "fluidics" is meant "hydraulic" (liquid) or "pneumatic" (air).

Le passage peut être un passage situé en amont d'un orifice de sortie du dispositif, lequel passage, en dehors des phases de distribution du produit, doit être maintenu fermé de manière aussi étanche que possible, afin d'éviter que tout produit résiduel situé en amont de l'orifice de sortie ne sèche ou ne s'oxyde au contact de l'air.The passage may be a passage located upstream of an outlet of the device, which passage, outside the product distribution phases, must be kept closed as tightly as possible, to prevent any residual product located upstream of the outlet orifice does not dry or oxidize on contact with air.

Alternativement, le passage peut être un passage formé entre deux compartiments formés par le dispositif. Selon cette variante, le dispositif délimite un premier compartiment contenant un premier produit, et un second compartiment, apte à être disposé au moins en partie au dessus du premier, et contenant un second produit, un premier organe de séparation étant apte à passer d'une première position dans laquelle il isole le premier produit du second à une seconde position dans laquelle le premier produit est mis en contact avec le second, le dispositif étant configuré de manière à ce que le passage du premier organe de séparation de la première à la seconde position résulte, à l'équilibre sensible des pressions entre les premier et second compartiments, d'une réduction de volume, notamment multidirectionnelle, dudit premier organe de séparation en réponse à une surpression générée à l'intérieur de l'un et/ou l'autre desdits premier et second compartiments.Alternatively, the passage may be a passage formed between two compartments formed by the device. According to this variant, the device delimits a first compartment containing a first product, and a second compartment, adapted to be disposed at least partly above the first, and containing a second product, a first separation member being adapted to pass from a first position in which it isolates the first product of the second to a second position in which the first product is brought into contact with the second, the device being configured so that the passage of the first separation member from the first to the second position results, at the sensible balance of pressures between the first and second compartments, a volume reduction, especially multidirectional, said first separation member in response to an overpressure generated within one and / or the other of said first and second compartments.

Ainsi, l'organe de séparation est tel, qu'il assure la séparation physique des deux produits. En revanche, il doit permettre à l'équilibre des pressions de se faire.Thus, the separation member is such that it ensures the physical separation of the two products. On the other hand, it must allow the balance of pressures to be made.

Dans la pratique, plus le niveau d'étanchéité requis pour assurer la séparation physique des deux produits est faible, plus la surpression à engendrer sera faible, et plus le fonctionnement sera confortable. Pour cette raison, au moins le produit contenu dans le second compartiment et qui, lorsque le second compartiment est au dessus du premier, repose sur l'organe de séparation, est de préférence sous forme d'une poudre. L'autre produit peut être notamment sous forme liquide.In practice, the lower the level of tightness required to ensure the physical separation of the two products, the lower the overpressure to be generated, and the more the operation will be comfortable. For this reason, at least the product contained in the second compartment and which, when the second compartment is above the first compartment, rests on the separating member, is preferably in the form of a powder. The other product can be in particular in liquid form.

Du fait de cette configuration du dispositif, la réalisation du mélange est extrêmement simple à mettre en oeuvre.Due to this configuration of the device, the mixing is extremely simple to implement.

En particulier, la pression fluidique s'exerçant de manière sensiblement uniforme sur toute la surface libre de l'organe de séparation, une faible surpression suffit à provoquer le passage de ce dernier de la première à la seconde position.In particular, the fluid pressure exerting substantially uniformly over the entire free surface of the separating member, a low overpressure is sufficient to cause the passage of the latter from the first to the second position.

Tel n'est pas le cas dans les systèmes du type de celui décrit en référence au brevet EP 0 606 429, et dans lesquels, le bouchon de séparation est forcé à se déplacer en réponse à une pression exercée de manière unilatérale, la pression étant en outre transmise via le produit situé entre le bouchon de séparation et le piston pousseur. Une telle pression s'exerçant sur le produit, pris en sandwich entre le bouchon et le piston, peut être néfaste au produit, en particulier lorsqu'il s'agit d'une poudre.This is not the case in systems of the type of that described with reference to patent EP 0 606 429, and in which the separating plug is forced to move in response to a pressure exerted unilaterally, the pressure being further transmitted via the product located between the separation cap and the pusher piston. Such pressure exerted on the product, sandwiched between the cap and the piston, can be detrimental to the product, especially when it is a powder.

De préférence, la réduction de volume se traduit au moins par une réduction de la surface du premier organe de séparation, transversalement à un axe longitudinal du dispositif, et ce sur toute sa hauteur axiale. Ainsi, dans la première position, l'organe de séparation est de suffisamment grand diamètre pour tenir en place par léger serrage, en dépit du poids du second produit disposé au dessus. En réponse à la pression s'exerçant de manière multidirectionnelle, l'organe de séparation se comprime dans toutes les directions, en particulier radialement à son axe. De ce fait, il n'est plus serrant, et, sous l'effet de son poids, ajouté au poids du second produit, il tombe avec ce dernier dans le premier récipient. Les deux produits sont alors au contact l'un de l'autre.Preferably, the volume reduction is reflected at least by a reduction of the surface of the first separation member, transversely to a longitudinal axis of the device, and this over its entire axial height. Thus, in the first position, the separating member is sufficiently large diameter to hold in place by slight tightening, despite the weight of the second product disposed above. In response to the pressure exerted in a multidirectional manner, the separating member compresses in all directions, in particular radially to its axis. As a result, it is no longer clamping, and, under the effect of its weight, added to the weight of the second product, it falls with it into the first container. The two products are then in contact with each other.

Dans le cas d'un organe de séparation de section transversale circulaire, une réduction de diamètre de quelques 10emes de mm suffit à l'obtention du résultat.In the case of a separator of circular cross section, a diameter reduction of some 10 ems mm suffices to obtain the result.

Dans la pratique, la pression qui s'exerce sur l'organe de séparation étant sensiblement uniforme sur toute sa surface extérieure, on observe également une légère diminution de la hauteur axiale de l'organe de séparation. Dans ce dernier cas, la réduction de volume est multidirectionnelle. L'organe de séparation est réalisé dans un matériau apte à se rétracter sous l'effet de cette surpression, il est donc apte à réduire de volume.In practice, the pressure exerted on the separating member being substantially uniform over its entire outer surface, there is also a slight decrease in the axial height of the separating member. In the latter case, the volume reduction is multidirectional. The separating member is made of a material capable of shrinking under the effect of this overpressure, it is therefore able to reduce volume.

De préférence, la surpression est générée dans le premier compartiment lorsque ce dernier est en dessous du second, le niveau de premier produit dans le premier compartiment étant tel que le passage de la première à la seconde position s'opère avant que le premier produit ne vienne au contact dudit premier organe de séparation. La pression qui s'exerce sur l'organe de séparation est pneumatique.Preferably, the overpressure is generated in the first compartment when the latter is below the second, the level of first product in the first compartment being such that the passage from the first to the second position takes place before the first product comes into contact with said first separation member. The pressure exerted on the separating member is pneumatic.

Alternativement, la surpression peut être exercée sur le compartiment disposé au dessus de l'autre. Dans l'hypothèse où le produit contenu dans le compartiment du dessus est un liquide, de densité supérieure à la densité du matériau formant l'organe de séparation, alors, en réponse à la surpression, l'organe de séparation diminue de volume, et n'est plus retenu dans la position où il isole les deux compartiments. Il remonte alors à la surface du liquide au fur et à mesure que celui-ci se mélange avec le produit contenu dans l'autre compartiment. Dans ce cas de figure, la pression qui s'exerce sur l'organe de séparation est hydraulique.Alternatively, the overpressure can be exerted on the compartment disposed above the other. Assuming that the product contained in the compartment above is a liquid, of density greater than the density of the material forming the separating member, then, in response to the overpressure, the separating member decreases in volume, and is no longer held in the position where it isolates the two compartments. It then rises to the surface of the liquid as it mixes with the product contained in the other compartment. In this case, the pressure exerted on the separation member is hydraulic.

Préférentiellement, le premier organe de séparation est constitué au moins pour partie d'un élément formé d'un matériau compressible élastiquement en réponse à ladite surpression, et dont au moins une partie de la surface externe est imperméable. Par "imperméable", on entend imperméable au fluide pressuriseur, en particulier à l'air.Preferably, the first separation member is constituted at least in part by an element formed of an elastically compressible material in response to said overpressure, and at least a portion of the outer surface is impermeable. By "waterproof" is meant to be impermeable to the pressurizing fluid, in particular to air.

De préférence encore, le matériau est un matériau alvéolaire à cellules fermées. Il peut s'agir notamment d'une mousse de polyéthylène, de polyester ou de polyuréthane.More preferably, the material is a closed-cell foam material. It may be in particular a polyethylene foam, polyester or polyurethane.

De préférence, dans la deuxième position, ledit premier organe de séparation flotte à la surface du mélange. Ainsi, l'organe de séparation ne perturbe pas la distribution du mélange.Preferably, in the second position, said first separating member floats on the surface of the mixture. Thus, the separation member does not disturb the distribution of the mixture.

Comme indiqué précédemment, le premier organe de séparation est de préférence disposé à l'intérieur d'un passage formé entre les premier et second compartiments et est, préalablement à ladite surpression, maintenu dans ladite première position, par compression partielle selon au moins une direction transversale audit passage, au contact d'une surface interne délimitant ledit passage. En dépit de cette légère compression de l'organe de séparation, l'air peut passer entre la surface latérale de l'organe de séparation et la surface interne du passage, autorisant ainsi la réalisation de l'équilibre des pressions.As indicated above, the first separating member is preferably disposed inside a passage formed between the first and second compartments and is, prior to said overpressure, maintained in said first position, by partial compression in at least one direction transverse to said passage, in contact with an inner surface delimiting said passage. Despite this slight compression of the separation member, the air can pass between the lateral surface of the separating member and the inner surface of the passage, thus allowing the achievement of pressure equilibrium.

A l'équilibre des pressions, la pression du premier compartiment et du deuxième compartiment, sont sensiblement identiques et chacune en surpression relativement à la pression initiale de ces compartiments. L'organe de séparation disposé entre ces deux compartiments est de fait comprimé dans au moins deux directions opposées, par exemple la pression est au moins appliquée sur deux faces opposées de cet organe venant au contact de la surface interne du passageAt the pressure equilibrium, the pressure of the first compartment and the second compartment are substantially identical and each in excess pressure relative to the initial pressure of these compartments. The separating member disposed between these two compartments is in fact compressed in at least two opposite directions, for example the pressure is at least applied to two opposite sides of this member coming into contact with the inner surface of the passage

Selon un mode de réalisation préféré, l'une au moins des parois délimitant l'un et/ou l'autre desdits premier et second compartiments est déformable élastiquement de manière à pouvoir générer ladite surpression en réponse à une pression exercée, latéralement ou axialement, sur ladite paroi déformable élastiquement.According to a preferred embodiment, at least one of the walls delimiting one and / or the other of said first and second compartments is elastically deformable so as to be able to generate said overpressure in response to a pressure exerted, laterally or axially, on said resiliently deformable wall.

De manière plus spécifique, au moins une partie de l'un et/ou l'autre desdits premier et second compartiments peut former un soufflet. Dans ce cas, la pression à exercer est axiale.More specifically, at least a portion of one and / or the other of said first and second compartments may form a bellows. In this case, the pressure to exert is axial.

Alternativement, le compartiment à l'intérieur duquel est générée la surpression est délimité par un récipient à parois compressibles élastiquement. Dans ce cas, la pression à exercer est transversale à l'axe.Alternatively, the compartment inside which the overpressure is generated is delimited by a container with elastically compressible walls. In this case, the pressure to be exerted is transverse to the axis.

Selon un mode de réalisation spécifique, le premier compartiment est délimité par un premier récipient, le second compartiment étant délimité par un second récipient, apte à être monté sur le premier, notamment par vissage ou encliquetage.According to a specific embodiment, the first compartment is delimited by a first container, the second compartment being delimited by a second container, adapted to be mounted on the first, in particular by screwing or snapping.

Le second récipient comporte alors une ouverture qui, lorsque ledit premier organe de séparation est dans la première position, est isolée du second produit par ledit premier organe de séparation.The second container then has an opening which, when said first separator member is in the first position, is isolated from the second product by said first separator member.

Avantageusement, ladite ouverture, préalablement au montage du second récipient sur le premier, est obturée de manière amovible par moyen de fermeture, notamment sous forme d'un bouchon, en particulier vissé.Advantageously, said opening, prior to mounting the second container on the first, is closed removably by means of closure, in particular in the form of a plug, in particular screwed.

Des moyens sont prévus pour, préalablement au montage du second récipient sur le premier, maintenir à position fixe ledit premier organe de séparation.Means are provided for, prior to mounting the second container on the first, maintain in a fixed position said first member separation.

De tels moyens d'immobilisation peuvent être constitués :

  • i) d'une part, une portion du bouchon ; et
  • ii) d'autre part, d'une butée axiale située du côté du premier organe de séparation opposé au bouchon.
Such immobilization means may consist of:
  • i) a portion of the plug; and
  • ii) on the other hand, an axial stop located on the side of the first separator member opposite the stopper.

Ainsi, tant que le bouchon est en place sur le second récipient, il immobilise axialement l'organe de séparation. Une fois le bouchon enlevé, lors du positionnement du second récipient au dessus du premier, le second produit est retenu à l'intérieur du second récipient par l'organe de séparation.Thus, as long as the cap is in place on the second container, it axially immobilizes the separating member. Once the cap is removed, when positioning the second container above the first, the second product is retained within the second container by the separating member.

Avantageusement, le second compartiment est délimité par un élément formant un embout d'application pour le mélange desdits produits.Advantageously, the second compartment is delimited by an element forming an applicator tip for mixing said products.

De préférence, le second compartiment est apte à communiquer avec un orifice de distribution qui, préalablement au mélange, est obturé par un organe de fermeture, notamment sous forme d'un élément auto-cassable.Preferably, the second compartment is able to communicate with a dispensing orifice which, prior to mixing, is closed by a closure member, in particular in the form of a self-breaking element.

Selon un autre mode de réalisation, le dispositif forme un troisième compartiment apte à être disposé au moins en partie au dessus du deuxième et contenant un troisième produit, lesdits premier, second, et troisième produits étant isolés deux à deux par ledit premier organe de séparation et par un second organe de séparation, lesdits premier et second organes de séparation étant aptes à passer chacun d'une première position dans laquelle ils isolent deux à deux lesdits premier, second, et troisième produits, à une seconde position dans laquelle les trois produits sont mis au contact les uns avec les autres, le passage des premier et second organe de séparation de la première position à la seconde résultant, à l'équilibre sensible des pressions entre les compartiments qu'ils séparent respectivement, d'une réduction de volume multidirectionnelle desdits premier et second organe de séparation en réponse à une surpression générée à l'intérieur de l'un et/ou l'autre desdits premier, second, et troisième compartiments.According to another embodiment, the device forms a third compartment adapted to be disposed at least partly above the second and containing a third product, said first, second and third products being isolated in pairs by said first separation member. and by a second separating member, said first and second separating members being adapted to pass each of a first position in which they isolate two by two said first, second and third products, at a second position in which the three products are brought into contact with each other, the passage of the first and second separating member from the first position to the second resulting, the sensible balance of pressures between the compartments they respectively separate, a volume reduction multidirectional of said first and second separation member in response to an overpressure generated within one and or the other of said first, second and third compartments.

De préférence, le mélange est réalisé en positionnant le dispositif de sorte que le deuxième compartiment soit au dessus du premier, le troisième, au dessus du second, et en pressurisant le premier.Preferably, the mixture is made by positioning the device so that the second compartment is above the first, the third, above the second, and pressurizing the first.

Les deuxième et troisième produits peuvent être conditionnés de manière séparée l'un de l'autre, dans le même récipient, en particulier dans un embout applicateur.The second and third products may be packaged separately from each other, in the same container, in particular in an applicator tip.

Avantageusement, le (ou les) produit(s) contenu(s) dans le (ou les) compartiment(s) autre(s) que celui à l'intérieur duquel est générée ladite surpression, est (sont) sous forme pulvérulente. Ainsi, le premier produit peut être un oxydant sous forme liquide. Le second produit peut être un colorant sous forme d'une poudre. Le troisième produit peut être une composition parfumante, sous forme d'une poudre également.Advantageously, the (or) product (s) contained in the (or) compartment (s) other (s) than that inside which is generated said overpressure, is (are) in powder form. Thus, the first product may be an oxidant in liquid form. The second product may be a dye in the form of a powder. The third product may be a perfume composition, in the form of a powder as well.

Selon un autre aspect, la présente demande concerne un dispositif pour le mélange extemporané d'au moins deux produits, le dispositif formant un premier compartiment contenant un premier produit et un second compartiment, apte à être disposé au moins en partie au dessus du premier, et contenant un second produit, un organe de séparation étant apte à passer d'une première position dans laquelle il isole le premier produit du second à une seconde position dans laquelle le premier produit est mis en contact avec le second, le dispositif étant configuré de manière à ce que le passage de l'organe de séparation de la première position à la seconde résulte d'une surpression générée dans l'un ou l'autre desdits premier et second compartiments, caractérisé en ce que ledit organe de séparation, lors de son passage de la première position à la seconde, se déplace en direction du compartiment à l'intérieur duquel est générée la surpression.According to another aspect, the present application relates to a device for the extemporaneous mixing of at least two products, the device forming a first compartment containing a first product and a second compartment, adapted to be arranged at least partly above the first, and containing a second product, a separating member being adapted to move from a first position in which it isolates the first product from the second to a second position in which the first product is brought into contact with the second, the device being configured to so that the passage of the separating member from the first position to the second results from an overpressure generated in one or the other of said first and second compartments, characterized in that said separating member, when its passage from the first position to the second, moves towards the compartment inside which the overpressure is generated.

Comme indiqué précédemment, le dispositif selon l'invention peut être utilisé pour la réalisation d'un mélange destiné à former une composition cosmétique notamment pour la coloration capillaire.As indicated above, the device according to the invention can be used for producing a mixture intended to form a cosmetic composition, in particular for hair dyeing.

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

  • la figure 1 est une vue éclatée d'un dispositif selon un premier mode de réalisation de l'invention ;
  • la figure 2 est une vue en coupe du dispositif de la figure 1 ;
  • les figures 3A-3F illustrent les principales étapes de fonctionnement du dispositif des figures 1 et 2.
  • la figure 4 est une vue en coupe d'un dispositif selon un second mode de réalisation de l'invention ; et
  • les figures 5A-5D illustrent les principales étapes de fonctionnement du dispositif de la figure 4.
The invention consists, apart from the arrangements described above, in a certain number of other arrangements which will be explained below, with reference to nonlimiting exemplary embodiments, described with reference to the appended figures, among which:
  • Figure 1 is an exploded view of a device according to a first embodiment of the invention;
  • Figure 2 is a sectional view of the device of Figure 1;
  • FIGS. 3A-3F illustrate the main operating steps of the device of FIGS. 1 and 2.
  • Figure 4 is a sectional view of a device according to a second embodiment of the invention; and
  • FIGS. 5A-5D illustrate the main operating steps of the device of FIG. 4.

Le dispositif 1 représenté aux figures 1 et 2 comprend un récipient 2 dont une extrémité se termine par un fond 3. Une partie 4 du corps du récipient, adjacente au fond 3, est configurée sous forme d'un soufflet. Le récipient 2 délimite un logement 9 destiné à contenir un oxydant de coloration sous forme liquide.The device 1 shown in Figures 1 and 2 comprises a container 2, one end terminates in a bottom 3. A portion 4 of the body of the container, adjacent to the bottom 3, is configured as a bellows. The container 2 delimits a housing 9 intended to contain a coloring oxidant in liquid form.

L'extrémité du récipient opposée au fond 3 se termine par un col fileté 5 délimitant une ouverture 6.The end of the container opposite the bottom 3 ends with a threaded neck 5 delimiting an opening 6.

Le récipient 2 est obtenu par extrusion soufflage en polyéthylène ou en polypropylène.The container 2 is obtained by extrusion blow molding of polyethylene or polypropylene.

En position de stockage et/ou transport du dispositif 1, le récipient 2 est fermé par un bouchon 7 dont la surface interne comporte un filetage apte à coopérer avec le filetage du col 5. De manière classique, le bouchon 7 comporte une jupe d'étanchéité 8.In the storage and / or transport position of the device 1, the container 2 is closed by a plug 7 whose inner surface has a thread capable of cooperating with the thread of the neck 5. In a conventional manner, the plug 7 comprises a skirt tightness 8.

Le dispositif 1 comprend également un embout applicateur 10.The device 1 also comprises an applicator tip 10.

L'embout applicateur 10 est constitué d'un élément creux de forme allongée, dont une portion 11 est de section transversale diminuant progressivement en direction d'une ouverture de faible section 19, fermée par un embout auto-cassable 40.The applicator tip 10 consists of a hollow element of elongated shape, a portion 11 of which is of progressively decreasing cross-section towards a small section opening 19, closed by a self-breaking endpiece 40.

Au voisinage de son extrémité opposée à l'embout auto-cassable 40, l'embout applicateur 10 comprend une première portion cylindrique 13, de diamètre supérieur au plus grand diamètre de la portion 11, et séparée de cette dernière par un épaulement 14.In the vicinity of its end opposite to the self-breaking end 40, the applicator tip 10 comprises a first cylindrical portion 13, of greater diameter than the largest diameter of the portion 11, and separated from the latter by a shoulder 14.

Du côté de la première portion cylindrique 13, opposé à la portion 11, l'embout applicateur 10 forme une seconde portion cylindrique 15 de diamètre interne supérieur au diamètre interne de la première portion cylindrique 13. Un bord libre de la portion cylindrique 15 délimite une ouverture 45 pour l'embout applicateur 10.On the side of the first cylindrical portion 13, opposite the portion 11, the applicator tip 10 forms a second cylindrical portion 15 of internal diameter greater than the internal diameter of the first cylindrical portion 13. A free edge of the cylindrical portion 15 defines a opening 45 for the applicator tip 10.

La seconde portion cylindrique 15 est séparée de la première 13 par un épaulement 16.The second cylindrical portion 15 is separated from the first 13 by a shoulder 16.

La surface interne de la seconde portion cylindrique 15 comporte un pas de vis 17. A l'intérieur de la portion cylindrique 15, est formée une jupe d'étanchéité 18, s'étendant axialement depuis l'épaulement 16, en direction de l'extrémité de l'embout 10, opposée à l'embout auto-cassable 40.The inner surface of the second cylindrical portion 15 comprises a screw thread 17. Within the cylindrical portion 15, a sealing skirt 18, extending axially from the shoulder 16, is formed in the direction of the end of the tip 10, opposite the self-breaking tip 40.

L'embout applicateur 10 est obtenu par injection d'un matériau thermoplastique rigide, tel qu'un polyamide, un polystyrène, un polycarbonate, un polypropylène, un acrylobutadiène styrène (ABS), ou un polystyrène acrylonitrile (SAN).The applicator tip 10 is obtained by injection of a rigid thermoplastic material, such as a polyamide, a polystyrene, a polycarbonate, a polypropylene, an acrylobutadiene styrene (ABS), or a polystyrene acrylonitrile (SAN).

Après introduction d'une poudre colorante dans le logement 12 délimité par la portion 11 de l'embout applicateur, un bloc de mousse de polyuréthane à cellules fermées 20 est disposé à l'intérieur de la portion cylindrique 13. Le bloc de mousse 20 est de hauteur sensiblement identique à celle de la portion cylindrique 13. Le mouvement d'insertion du bloc de mousse à l'intérieur de l'embout 10 est limité par la présence de l'épaulement 14, contre lequel vient en butée une surface 21 du bloc de mousse 20.After introduction of a coloring powder into the housing 12 delimited by the portion 11 of the applicator tip, a block of closed-cell polyurethane foam 20 is disposed inside the cylindrical portion 13. The foam block 20 is of height substantially identical to that of the cylindrical portion 13. The insertion movement of the foam block inside the nozzle 10 is limited by the presence of the shoulder 14, against which abuts a surface 21 of the block of foam 20.

Le diamètre au repos du bloc de mousse 20 est légèrement supérieur au diamètre interne de la portion cylindrique 13 de manière à être légèrement comprimé latéralement à l'intérieur de la portion cylindrique 13. Le degré de compression est suffisant pour permettre au bloc de mousse 20 de tenir de lui même à l'intérieur de la portion cylindrique 13 en dépit du poids de poudre dans la partie 11 de l'embout applicateur 10.The diameter at rest of the foam block 20 is slightly greater than the internal diameter of the cylindrical portion 13 so as to be slightly compressed laterally within the cylindrical portion 13. The degree of compression is sufficient to allow the foam block 20 to hold itself inside the cylindrical portion 13 despite the weight of powder in the portion 11 of the applicator tip 10.

Pendant le stockage et/ou transport, l'extrémité de l'embout 10 est fermée par un bouchon 30 dont une surface extérieure comporte un filetage 31 apte à coopérer avec le pas de vis 17 de l'embout 10. Une paroi transversale 32 du bouchon 30 est disposée de manière à venir sensiblement au contact de la surface 22 du bloc de mousse, opposée à la surface 21.During storage and / or transport, the end of the tip 10 is closed by a plug 30, an outer surface has a thread 31 adapted to cooperate with the thread 17 of the tip 10. A transverse wall 32 of plug 30 is arranged to come into substantial contact with the surface 22 of the foam block opposite the surface 21.

Une paroi extérieure 33, concentrique à la paroi annulaire sur laquelle est formé le filetage 31, permet la manipulation du bouchon 30.An outer wall 33, concentric with the annular wall on which the thread 31 is formed, allows the cap 30 to be handled.

Le fonctionnement du dispositif 1 qui vient d'être décrit va maintenant être expliqué en référence aux figures 3A-3F.The operation of the device 1 which has just been described will now be explained with reference to FIGS. 3A-3F.

A la figure 3A, le récipient 2 a été débarrassé de son bouchon 7. L'embout 10 a été débarrassé de son bouchon 30. Même en position tête en haut, le bloc de mousse 20 tient par légère compression à l'intérieur de la partie cylindrique 13 de l'embout 10, et ce, en dépit du poids de la poudre qui, de ce fait, est retenue à l'intérieur du logement 12.In FIG. 3A, the receptacle 2 has been stripped of its plug 7. The tip 10 has been stripped of its plug 30. Even in the up-head position, the foam block 20 holds by slight compression inside the cylindrical portion 13 of the nozzle 10, and this, despite the weight of the powder which, therefore, is retained inside the housing 12.

A la figure 38, l'embout 10 est vissé sur le récipient 2.In FIG. 38, the tip 10 is screwed onto the receptacle 2.

A la figure 3C, une pression axiale est exercée sur le fond 3 du récipient 2 de manière à comprimer axialement la partie 4 formant soufflet. Il en résulte une surpression à l'intérieur du récipient 2. Du fait de l'absence d'étanchéité à l'air tout autour du bloc de mousse 20, les pressions s'équilibrent entre le logement 9 et le logement 12. De ce fait, la surpression s'exerce de manière sensiblement uniforme sur l'intégralité de la surface extérieure du bloc de mousse 20. Celui-ci se comprime de manière multidirectionnelle. II en résulte en particulier une réduction de son diamètre extérieur, suffisante pour qu'il ne soit plus retenu à l'intérieur de la portion cylindrique 13. Il tombe alors sous l'effet de son poids, ajouté au poids de poudre contenu dans le logement 12.In Figure 3C, an axial pressure is exerted on the bottom 3 of the container 2 so as to axially compress the portion 4 forming a bellows. This results in an overpressure inside the container 2. Due to the absence of airtightness around the foam block 20, the pressures are balanced between the housing 9 and the housing 12. Of this In fact, the overpressure is exerted substantially uniformly over the entire outer surface of the foam block 20. The latter compresses in a multidirectional manner. This results in particular in a reduction of its outer diameter, sufficient so that it is no longer retained within the cylindrical portion 13. It then falls under the effect of its weight, added to the weight of powder contained in the housing 12.

A la figure 3D, les deux produits sont en mélange à l'intérieur du récipient 2. Le bloc de mousse 20 flotte à la surface du mélange. Le mélange peut être homogénéisé en agitant le dispositif 1 de manière adéquate.In FIG. 3D, the two products are mixed inside the container 2. The foam block 20 floats on the surface of the mixture. The mixture can be homogenized by stirring the device 1 adequately.

A la figure 3E, l'ouverture 19 de l'embout applicateur 10 est dégagée en cassant l'embout auto-cassable 40.In FIG. 3E, the opening 19 of the applicator tip 10 is disengaged by breaking the self-breaking endpiece 40.

A la figure 3F, le mélange est appliqué de manière classique sur les cheveux en s'aidant de la portion formant soufflet 4 pour précipiter la sortie du mélange via l'ouverture 19.In FIG. 3F, the mixture is conventionally applied to the hair by means of the bellows portion 4 to precipitate the exit of the mixture via the opening 19.

Dans l'hypothèse où l'on souhaite utiliser le dispositif qui vient d'être décrit avec deux liquides, il peut être avantageux :

  • i) de prévcir sur la surface interne de l'épaulement 14, une nervure annulaire (non représentée), de manière à réduire les risques de formation, avant utilisation du dispositif, d'un film liquide entre la surface latérale du bloc de mousse 20 et la surface interne de la portion cylindrique 13 ; et
  • ii) de réaliser le mélange en position tête en bas du dispositif, le matériau formant le bloc de mousse 20 étant de densité inférieure à celle du liquide contenu dans le récipient 2.
In the event that it is desired to use the device which has just been described with two liquids, it may be advantageous:
  • i) to provide on the inner surface of the shoulder 14, an annular rib (not shown), so as to reduce the risk of formation, before use of the device, of a liquid film between the lateral surface of the foam block 20 and the inner surface of the cylindrical portion 13; and
  • ii) to effect mixing in the head-down position of the device, the material forming the foam block 20 being of a lower density than that of the liquid contained in the container 2.

Le mode de réalisation de la figure 4 à laquelle il est maintenant fait référence se distingue du précédent principalement en ce que :

  • i) le récipient 2 est à parois déformables élastiquement en réponse à une pression exercée sur le récipient, de façon sensiblement perpendiculaire à l'axe X ; et
  • ii) sensiblement à mi-hauteur entre la portion cylindrique 13 de l'embout 10, et l'embout auto-cassable 40, l'embout applicateur 10 présente une autre portion cylindrique 41, de diamètre interne légèrement inférieur au diamètre interne de la portion cylindrique 13. La portion cylindrique 41 est séparée de la portion de l'embout applicateur adjacente à l'élément auto-cassable 40 par un épaulement annulaire 42. A l'intérieur de la portion cylindrique 41 est disposé un bloc de mousse 50 similaire au bloc de mousse 20, et dont une face 51 est en butée axiale contre l'épaulement 42. Ainsi, en position montée de l'embout applicateur 10 sur le récipient 2, le bloc de mousse 20 sépare le compartiment 9 délimité par le récipient 2 du compartiment 12 formé en partie basse de l'embout applicateur 10. Le bloc de mousse 50 sépare le compartiment 12 d'un compartiment 43 formé en partie haute de l'embout applicateur. Le compartiment 9 contient un oxydant de coloration sous forme liquide. Le compartiment 12 contient un colorant sous forme d'une poudre. Le compartiment 43 contient un agent parfumant sous forme d'une poudre.
The embodiment of FIG. 4 to which reference is now made differs from the previous one mainly in that:
  • i) the container 2 is elastically deformable walls in response to a pressure exerted on the container, substantially perpendicular to the axis X; and
  • ii) substantially at mid-height between the cylindrical portion 13 of the nozzle 10, and the self-breaking tip 40, the applicator tip 10 has another cylindrical portion 41, of internal diameter slightly smaller than the internal diameter of the portion cylindrical 13. The cylindrical portion 41 is separated from the portion of the applicator tip adjacent to the self-breaking element 40 by an annular shoulder 42. Inside the cylindrical portion 41 is disposed a block of foam 50 similar to the foam block 20, and a face 51 is in axial abutment against the shoulder 42. Thus, in the mounted position of the applicator tip 10 of the container 2, the foam block 20 separates the compartment 9 defined by the container 2 of the compartment 12 formed in the lower part of the applicator tip 10. The foam block 50 separates the compartment 12 from a compartment 43 formed in the upper part of the applicator tip. Compartment 9 contains a coloring oxidant in liquid form. Compartment 12 contains a dye in the form of a powder. The compartment 43 contains a perfuming agent in the form of a powder.

Le reste du dispositif est similaire à ce qui a été décrit en référence au mode de réalisation précédent. De ce fait, sa description détaillée ne sera pas reprise ici.The rest of the device is similar to what has been described with reference to the previous embodiment. As a result, its detailed description will not be repeated here.

A l'utilisation, dans un premier temps, tout se passe conformément à ce qui a été décrit pour le premier mode de réalisation en référence aux figures 3A et 3B.In use, initially, everything happens in accordance with what has been described for the first embodiment with reference to Figures 3A and 3B.

Le reste du processus est illustré en référence aux figures 5A-5D auxquelles il est maintenant fait référence.The remainder of the process is illustrated with reference to Figures 5A-5D to which reference is now made.

A la figure 5A, le compartiment 9 est pressurisé en réponse à une pression exercée transversalement sur les parois déformables du récipient 2. Il en résulte une surpression à l'intérieur du récipient 2. Du fait de l'absence d'étanchéité à l'air tout autour du bloc de mousse 20 et du bloc de mousse 50, les pressions s'équilibrent de manière quasi-instantanée entre les logements 9, 12, et 43. De ce fait, la surpression s'exerce de manière sensiblement uniforme sur l'intégralité de la surface extérieure des blocs de mousse 20 et 50. Ceux-ci se compriment de manière multidirectionnelle. Il en résulte en particulier une réduction de leur diamètre extérieur, suffisante pour qu'il ne soient plus retenus à l'intérieur de leur portions cylindriques respectives 13 et 41. Il tombent alors sous l'effet de leur poids, ajouté au poids de poudre contenu respectivement dans les logements 12 et 43.In FIG. 5A, the compartment 9 is pressurized in response to a pressure exerted transversely on the deformable walls of the receptacle 2. This results in an overpressure inside the receptacle 2. Due to the lack of impermeability to the air around the foam block 20 and the foam block 50, the pressures are equilibrated almost instantaneously between the housings 9, 12, and 43. As a result, the overpressure is exerted substantially uniformly on the the entire outer surface of the foam blocks 20 and 50. These are compressed in a multidirectional manner. This results in particular a reduction in their outer diameter, sufficient so that they are no longer retained within their respective cylindrical portions 13 and 41. They then fall under the effect of their weight, added to the weight of powder contained respectively in dwellings 12 and 43.

Dans la pratique, les deux blocs de mouse tombent de manière légèrement séquentielle, le bloc 20 tombant avant le bloc 50.In practice, the two mouse blocks fall slightly sequentially, the block 20 falling before the block 50.

A la figure 5B, les trois produits sont en mélange à l'intérieur du logement 9. Les blocs de mousse 20 et 50 flottent à la surface du mélange. Le mélange peut être homogénéisé en agitant le dispositif 1 de manière adéquate.In Figure 5B, the three products are mixed inside the housing 9. The foam blocks 20 and 50 float on the surface of the mixture. The mixture can be homogenized by stirring the device 1 adequately.

A la figure 5C, l'ouverture 19 de l'embout applicateur 10 est dégagée en cassant l'embout auto-cassable 40.In FIG. 5C, the opening 19 of the applicator tip 10 is disengaged by breaking the self-breaking endpiece 40.

A la figure 5D, le mélange est appliqué de manière classique sur les cheveux en comprimant le corps déformable du récipient 2 pour précipiter la sortie du mélange via l'ouverture 19.In FIG. 5D, the mixture is conventionally applied to the hair by compressing the deformable body of the container 2 to precipitate the exit of the mixture via the opening 19.

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

Claims (22)

  1. Device (1) for packaging at least one product, particularly a cosmetic product, the device comprising:
    i) at least one first compartment (9, 12) intended to contain the said product;
    ii) a second compartment connected by a passage (13) to the first compartment;
    ii) a member (20), at least partially elastically compressible, positioned in the said passage (13) of the device; and
    iii) means (2, 3) for, in response to a manual actuating command, generating a fluidic overpressure, characterized in that the fluidic overpressure on at least part of the elastically compressible member (20) is applied in at least two opposite directions so as to cause a reduction in volume of the compressible member in order to at least partially uncover the said passage.
  2. Device (1) according to Claim 1, characterized in that:
    a) the first compartment (9) contains a first product and the second compartment (12), able to be positioned at least partially above the first compartment, contains a second product;
    b) the said elastically compressible member forms a first dividing member (20) able to move from a first position in which it isolates the first product from the second into a second position in which the first product is brought into contact with the second, the device being configured in such a way that the movement of the first dividing member (20) from the first position to the second results, if the pressures in the first and second compartments are substantially equal, from a reduction in volume of the said first dividing member (20) in response to an overpressure generated inside one and/or other of the said first and second compartments (9, 12).
  3. Device (1) according to Claim 1 or 2, characterized in that the reduction in volume of the compressible member (20) is manifested at least in a reduction in the surface area of a section transverse to the axis of the passage (13) of the said elastically compressible member (20).
  4. Device (1) according to Claim 2 or 3, characterized in that it is configured in such a way that the movement of the said first dividing member (20) from the first to the second position results from an overpressure generated in the first compartment (9) when the latter is under the second (12), the level of first product in the first compartment (9) being such that the movement from the first to the second position occurs before the first product comes into contact with the said first dividing member (20).
  5. Device (1) according to any one of Claims 1 to 4, characterized in that the elastically compressible member (20) has an external surface which is at least partially impermeable.
  6. Device (1) according to Claim 5, characterized in that the elastically compressible member (20) is at least partially formed from a closed-cell cellular material.
  7. Device (1) according to Claim 6, characterized in that the closed-cell cellular material is a polyethylene, polyester or polyurethane foam.
  8. Device (1) according to Claim 2 and any one of Claims 3 to 7, characterized in that, in the second position, the said first dividing member (20) floats on the surface of the mixture.
  9. Device (1) according to Claim 2 and any one of Claims 3 to 8, characterized in that the first dividing member (20) is positioned inside a passage (13) formed between the first and second compartments and, prior to the said overpressure, is kept in the said first position by partial compression in at least one direction transverse to the said passage in contact with an internal surface delimiting the said passage.
  10. Device (1) according to any one of Claims 1 to 9, characterized in that at least one of the walls delimiting the said compartment (9, 12) or one of the said compartments is elastically deformable so as to be able to generate the said overpressure in response to pressure exerted laterally or axially on the said elastically deformable wall.
  11. Device (1) according to any one of Claims 1 to 10, characterized in that at least part (4) of the said compartment (9, 12) or one of the said compartments forms a bellows.
  12. Device (1) according to Claim 2 and any one of Claims 3 to 11, characterized in that the first compartment (9) is delimited by a first container (2), the second compartment (12) being delimited by a second container (10) able to be mounted on the first, particularly by screw-fastening or snap-fastening.
  13. Device (1) according to Claim 12, characterized in that the second container (10) comprises an opening (45) which, when the first dividing member (20) is in the first position, is isolated from the second product by the said first dividing member (20).
  14. Device (1) according to Claim 13, characterized in that the said opening (45), before the second container is mounted on the first, is closed off removably by shut-off means (30), particularly in the form of a cap, especially a screw cap.
  15. Device (1) according to Claim 13 or 14, characterized in that means (14, 32) are provided for keeping the said first dividing member (20) in a fixed position before the second container (10) is mounted on the first (2).
  16. Device (1) according to Claim 15, characterized in that the said immobilizing means consist:
    i) on the one hand, of a portion (32) of the cap (30); and
    ii) on the other hand, of an axial stop (14) situated on the opposite side of the first dividing member (20) to the cap (30).
  17. Device (1) according to Claim 2 and any one of Claims 3 to 16, characterized in that the second compartment (12) is delimited by an element (10) that forms a nozzle for applying the mixture of the said products.
  18. Device (1) according to Claim 17, characterized in that the second compartment is able to communicate with a dispensing orifice (19) which, before mixing, is closed off by a shut-off member (40), particularly in the form of a snap-off element.
  19. Device (1) according to Claim 2 and any one of Claims 3 to 18, characterized in that it forms a third compartment (43) able to be positioned at least partially above the second (12) and containing a third product, the said first, second and third products being isolated one from the next by the said first dividing member (20) and by a second dividing member (50), the said first and second dividing members (20, 50) each being able to move from a first position in which they isolate the said first, second and third products one from the next into a second position in which the three products are brought into contact with one another, the movement of the first and second dividing members from the first position into the second resulting, if the pressures between the two compartments that they respectively isolate are equal, from a multidirectional reduction in volume of the said first and second dividing members (20, 50) in response to an overpressure generated inside one and/or other of the said first, second and third compartments (9, 12, 43).
  20. Device (1) according to Claim 2 and any one of Claims 3 to 19, characterized in that the product(s) contained in the compartment(s) (12, 43) other than the compartment (9) in which the said overpressure is generated is (are) in pulverulent form.
  21. Device (1) for the extemporaneous mixing of at least two products, the device forming a first compartment (9) containing a first product and a second compartment (12) able to be positioned at least partially above the first and containing a second product, a dividing member (20) being able to move from a first position in which it isolates the first product from the second into a second position in which the first product is brought into contact with the second, the device being configured in such a way that the movement of the dividing member (20) from the first position to the second results from an overpressure generated in one or other of the said first and second compartments, characterized in that the said dividing member (20), as it moves from the first position to the second, moves towards the compartment in which the overpressure is generated.
  22. Use of a device (1) according to any one of the preceding claims for producing a mixture intended to form a cosmetic composition, particularly for colouring hair.
EP03291530A 2002-07-15 2003-06-23 Device for the extemporaneous mixture of at least two products Expired - Lifetime EP1382536B1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
FR0208915A FR2843100A1 (en) 2002-07-15 2002-07-15 Applicator, to prepare/deliver a hair coloring product, has chambers to hold the ingredients and flexible walls for the liquid container to force it through an elastic body into the second chamber to blend with its contents
FR0208915 2002-07-15
FR0214830A FR2843101B1 (en) 2002-07-15 2002-11-26 DEVICE FOR PACKAGING AT LEAST ONE PRODUCT, ESPECIALLY COSMETIC
FR0214830 2002-11-26

Publications (2)

Publication Number Publication Date
EP1382536A1 EP1382536A1 (en) 2004-01-21
EP1382536B1 true EP1382536B1 (en) 2006-06-14

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP03291530A Expired - Lifetime EP1382536B1 (en) 2002-07-15 2003-06-23 Device for the extemporaneous mixture of at least two products

Country Status (9)

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EP (1) EP1382536B1 (en)
JP (1) JP3837403B2 (en)
KR (1) KR100530202B1 (en)
CN (1) CN1273358C (en)
AT (1) ATE329844T1 (en)
BR (1) BR0302919A (en)
DE (1) DE60306043T2 (en)
ES (1) ES2266752T3 (en)
FR (1) FR2843101B1 (en)

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ATE524391T1 (en) * 2005-12-19 2011-09-15 Jeong-Min Lee PRESSURIZING CAP ASSEMBLY WITH SECONDARY MATERIAL STORAGE CHAMBER
DE202006002927U1 (en) * 2006-02-23 2006-05-04 Dentaco Dentalindustrie Und -Marketing Gmbh Device for discharging a flowable substance
US9352354B2 (en) * 2008-03-24 2016-05-31 Sashco, Inc. System and method of providing individual quantities of custom colored sealing compound
KR200455178Y1 (en) * 2011-04-07 2011-08-23 유승열 Inverted liquid container
KR101254041B1 (en) 2011-09-27 2013-04-12 장유영 Cosmetic capsule for packing cosmetic materials, the materials of which are separately stored, and a cosmetic manufacturing device by using the capsule
KR101404766B1 (en) * 2013-12-26 2014-06-12 김진우 Cosmetics capsule container
EP3156349B1 (en) * 2015-10-16 2018-07-04 Fontem Holdings 1 B.V. Mixing bottle
EP3173356A1 (en) * 2015-11-24 2017-05-31 The Procter and Gamble Company Package kit for a dye system and method for dyeing a substrate
KR101966163B1 (en) * 2018-04-20 2019-04-05 주식회사 태성산업 A container for storing and mixing different kinds of cosmetics
CN109229934A (en) * 2018-09-23 2019-01-18 周慧 A kind of push type Material hybrid bottle and application method
KR102256184B1 (en) * 2019-07-05 2021-05-26 농업회사법인 주식회사 프레쉬벨 A beverage stopper which mixes the different kinds of additives which are separated and stored regardless of the container posture
CN112110004A (en) * 2019-12-12 2020-12-22 张自武 Squeezing opening preparation bottle
CN111924308B (en) * 2020-07-22 2023-06-20 广州市联惠科技有限公司 Split packing bottle
JP2024502023A (en) * 2021-01-06 2024-01-17 ロレアル Dropper including a container and a head movable in multiple directions

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GB1115583A (en) * 1966-04-28 1968-05-29 Steven Leigh Improvements in or relating to devices for dispensing pastelike materials
FR2115572A5 (en) * 1970-11-25 1972-07-07 Somci
US4234083A (en) * 1979-11-13 1980-11-18 Cohen Milton J Mixing and filtering vial
JPH10324374A (en) * 1997-05-23 1998-12-08 Nissho Corp Mixing container
FR2811639B1 (en) * 2000-07-17 2002-10-04 Oreal DEVICE FOR PACKAGING AND DISPENSING A PRODUCT, ESPECIALLY A HAIR PRODUCT

Also Published As

Publication number Publication date
EP1382536A1 (en) 2004-01-21
JP2004035112A (en) 2004-02-05
CN1273358C (en) 2006-09-06
KR20040010171A (en) 2004-01-31
JP3837403B2 (en) 2006-10-25
FR2843101A1 (en) 2004-02-06
CN1475415A (en) 2004-02-18
BR0302919A (en) 2004-08-24
KR100530202B1 (en) 2005-11-22
ATE329844T1 (en) 2006-07-15
ES2266752T3 (en) 2007-03-01
DE60306043T2 (en) 2006-12-07
FR2843101B1 (en) 2005-09-23
DE60306043D1 (en) 2006-07-27

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