EP2295336B1 - Device for packaging and dispensing a product - Google Patents

Device for packaging and dispensing a product Download PDF

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Publication number
EP2295336B1
EP2295336B1 EP10175611A EP10175611A EP2295336B1 EP 2295336 B1 EP2295336 B1 EP 2295336B1 EP 10175611 A EP10175611 A EP 10175611A EP 10175611 A EP10175611 A EP 10175611A EP 2295336 B1 EP2295336 B1 EP 2295336B1
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EP
European Patent Office
Prior art keywords
polypropylene
polyethylene
dispensing head
dispensing
mixture
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EP10175611A
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German (de)
French (fr)
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EP2295336A1 (en
Inventor
Léandre Lasfargues
Walter Kreidler
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LOreal SA
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LOreal SA
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    • 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
    • B65D35/00—Pliable tubular containers adapted to be permanently or temporarily deformed to expel contents, e.g. collapsible tubes for toothpaste or other plastic or semi-liquid material; Holders therefor
    • B65D35/02—Body construction
    • B65D35/12—Connections between body and closure-receiving bush

Definitions

  • the present invention relates to a device for packaging a product, in particular a cosmetic product, including a care product or a perfume product, a pharmaceutical product or an agro-food product.
  • a preferred, but not exclusive, field of the present invention relates to the dispensing of a product in fluidic form, and especially in the form of lotion, gel, cream, paste or liquid.
  • Cosmetic product means a product as defined in Council Directive 93/35 / EEC of 14 June 1993.
  • the document DE20311719U discloses for example a product packaging and dispensing device comprising a dispensing head, of the service capsule type, and a container body, made of a same plastic material such as polyethylene, welded to one another.
  • US6405896 also discloses a product packaging and dispensing device comprising a container body and a service capsule type dispensing head to be made of the same material.
  • the document US6511568 describes a method for improving the adhesion between the body and the head of a tube respectively comprising a polypropylene and a polyethylene, comprising mixing with polypropylene and / or polyethylene a polymer formed by a polymerization reaction with a single site catalyst, in particular a metallocene, process by which a conditioning device according to the preamble of claim 1 can be obtained.
  • the document FR2872792 discloses for example a product packaging and dispensing device comprising a flexible container body, made from polyethylene, provided with an attached neck, also made of polyethylene, on which is fixed by snapping a dispensing head of the capsule type service, made of polypropylene.
  • An object of the present invention is therefore to provide a device overcoming at least one of the aforementioned drawbacks.
  • An object of the present invention is to provide a device requiring only a few component parts for its production.
  • an object of the present invention is to provide a device requiring very little material for its production. For example, a goal is to provide a raw material saving of the order of 50%.
  • An object of the invention is also to provide a very lightweight weight conditioning device.
  • An object of the invention is still to provide a device requiring little energy for its implementation.
  • Another object of the present invention is to provide an easily recyclable device.
  • an overall object of the present invention is to provide an ecological device, easy to manufacture, simple to implement and moderate cost.
  • An object of the present invention is also to provide a nomadic device, easily transportable.
  • Another object of the present invention is still to provide a device for product distribution without substantial effort of the user.
  • An object of the present invention is also to provide a device perfectly sealed to the product contained inside the device, in particular between the dispensing head and the container, and perfectly sealed to the ambient air.
  • An object of the present invention is still to provide a device of overall aesthetic appearance, in particular having one or more lines of welds, sharp and resistant.
  • Another object of the invention is finally to provide a device resistant to passage in a sterilization chamber such as autoclave to reduce the use of preservatives.
  • This characteristic makes it possible, despite the technical prejudice that provides for making two parts to be welded to one another in the same respective material, to improve the welding of the two parts relative to each other and to benefit from a clean weld line.
  • Such a characteristic thus makes it possible to ensure a good fixing of the dispensing head on the container body, thus conferring on the one hand a good sealing of the device at the level of the assembly line and, on the other hand, an aesthetic effect on the device. They also provide great strength to the shock of the device.
  • mixture of polypropylene and polyethylene is intended to cover a mixture composed of polypropylene and polyethylene interacting with each other by energetic bonds, for example of the Van der Walls type, or by covalent bonds, and is also intended to cover a mixture of ethylene monomers and propylene monomers bound together as one or more ethylene-propylene copolymers.
  • the container body can be obtained from the blend of polyethylene and polypropylene.
  • This container body may be from a monolayer sleeve, not laminated. Alternatively, it may be from a sleeve made of several layers, for example obtained by coextrusion or by gluing by means of an adhesive such as EVOH provided between two layers.
  • the container body may therefore comprise one or more layers, where appropriate each consisting of the mixture of polyethylene and polypropylene, comprising a polypropylene, in one of its forms, mixed with a polyethylene, under one of its forms described below.
  • the dispensing head may in turn comprise one or more layers composed solely of polypropylene in one of its forms, or a mixture thereof. Such forms are described below.
  • polypropylene is meant amorphous, crystalline, highly crystalline, isotactic, syndiotactic or atactic polypropylene or a mixture thereof, or cast polypropylene.
  • This polypropylene may be a linear homopolymer, connected or star-shaped.
  • the polypropylene used is advantageously amorphous or semi-crystalline.
  • Polyethylene means high molecular weight polyethylene, high density polyethylene, high density crosslinked polyethylene, medium density polyethylene, low density polyethylene, low density crosslinked polyethylene, linear low density polyethylene and polyethylene at very low density. Linear low density polyethylene is preferred.
  • compositions according to the invention can be prepared very easily by mixing the constituents in the molten state.
  • a common method for producing the mixture of polypropylene and polyethylene consists in producing a mixture of polypropylene granules, for example amorphous granules, and polyethylene granules, for example linear low density, and then directly transforming this mixture into a distribution head. or preferably in container body, on an implementation machine for example of the extruder type or injection molding machine.
  • Another method may also consist of a mixture of polypropylene powder, for example amorphous, and of polyethylene powder, for example linear low density powder, which is converted into a dispensing head, or preferably into a container body. directly or after intermediate granulation.
  • polypropylene powder for example amorphous
  • polyethylene powder for example linear low density powder
  • compositions containing from 20 to 50% by weight of polyethylene for example linear low density
  • polyethylene for example linear low density
  • desired properties such as increased flexibility and cold stretchability. and hot, and increased strength.
  • These qualities are sought in particular for processing by extrusion blow molding, extrusion stretching or thermoforming. The implementation of these techniques is facilitated and the objects obtained have better characteristics, while maintaining the appearance of amorphous polypropylene.
  • a method for carrying out a copolymerization of ethylene and propylene may in particular be carried out by a fluidized bed manufacturing method.
  • the polypropylene used in the present invention may have a glass transition temperature Tg of between 65 and 75 ° C. and in particular of the order of 70 ° C. It may have a melting temperature Tf of between 130 and 170 °. Its density can be between 0.890 and 0.910 g / cm3, and in particular can be of the order of 0.905 g / cm3.
  • the polypropylene used in the present invention is for example sold under the name MOPLEN RP 210G® by the company LYONDELL BASELL.
  • the polyethylene used in the present invention may have a glass transition temperature Tg of between 105 and 110 ° C. and in particular of the order of 108 ° C. It may have a melting temperature Tf of between 120 and 125 °. Its density can be between 0.860 and 0.960 g / cm3, and in particular can be of the order of 0.920 g / cm3.
  • the polyethylene used in the present invention is sold under the name DOW LEX 2045G® by Dow Chemical.
  • the mixture of polypropylene and polyethylene may have a glass transition temperature Tg of between 100 and 110 ° C. and in particular of the order of 108 ° C. It may have a melting temperature Tf of between 160 and 170 °. Its density may be between 0.88 and 0.92 g / cm3, and in particular may be of the order of 0.90 g / cm3.
  • the container body may have a wall thickness strictly less than 0.6 mm, in particular between 0.3 and 0.4 mm. It may have an axis of elongation X, and may have a section taken transversely to this axis of polygonal shape, such as square, or circular or oval.
  • the container body may not be derived from a laminate but from an extrusion die of annular profile, in particular circular or oval. It may be devoid of distribution collar. In other words, it may be devoid of a shrinking shoulder from which a neck rises.
  • This body can thus be a tube of substantially regular section and this over substantially its entire height, for example on at least 90% of its height, better 95%, even 98% or 100%.
  • the dispensing head may comprise a base comprising a dispensing opening, a shutter, optionally attached, mounted movably between a closed position and a release position of said opening.
  • this flap can be pivotally mounted on said base between a closed position and a release position of said opening.
  • This base and this flap can be made of material, the flap being connected to said base by a hinge-film.
  • This flap can alternatively be articulated by a hinge with reported axle.
  • This dispensing head can be obtained by injection molding. Such a dispensing head can thus be of the capsule-service type. Such a dispensing head may be mono or bi-material. This base and this flap may thus come from a single piece made of a respective material, identical or separate.
  • the base may comprise a peripheral skirt having a rounded portion, optionally provided with one or more relief (s), for welding the container body on the dispensing head.
  • This base may comprise reinforcing means arranged on either side of said dispensing opening, intended to facilitate the assembly and use of the device.
  • These reinforcing means may comprise curved profile ribs.
  • the container body and the dispensing head may be secured to one another by thermal welding, in particular by friction, hot gas, hot strikes, or by laser or ultrasound.
  • the device can have a maximum curb weight of 20g.
  • this weight can be between 7 and 18 g, for example between 11 and 16 g and in particular of the order of 13 g.
  • Such a weight is suitable for example for a body of container having a capacity of 200mL and a diameter of the order of 50mm.
  • the empty body can weigh between 7 and 9g, in particular about 8g.
  • the dispensing head can weigh between 4 and 7g, including about 5g.
  • the device according to the invention may consist solely of two parts, namely a container body closed by a bottom made of material with this body, for example by blowing and in particular extrusion blow molding, and a dispensing head of the capsule type service come of material welded to this body, for example by molding, in particular injection-molding. It may also consist of only three parts, namely a container body, a bottom attached to this body, for example welded, and a service capsule-type dispensing head coming from material welded to this body, opposite the bottom reported.
  • the Figures 1 to 3 represent a first embodiment of a device for packaging and dispensing a product, in particular a cosmetic product, including a care product, a pharmaceutical product or an agro-food product.
  • This device comprises on the one hand a container 1 and on the other hand a dispensing head 2.
  • the container 1 can define an axis of elongation X. This axis can be an axis of revolution.
  • This container may comprise a container body or side wall 10 comprising two opposing openings called lower and upper, respectively sealed on the one hand by a bottom 11, optionally attached, and on the other hand covered with the dispensing head 2.
  • the container body 10 and the dispensing head 2 are welded together, one being made of polypropylene, the other made of a mixture of polypropylene and polyethylene.
  • the container body 10 may come according to a preferred embodiment of the cutting of a sleeve or extruded tube through a die of corresponding profile, in particular annular. Such a body can result from extrusion blow molding.
  • the container body 10 may have a section, taken transversely to the axis of elongation X of the container, of polygonal shape, such as square, or circular or in this case, oval.
  • the container body 10 can be obtained from the blend of polyethylene and polypropylene.
  • the polypropylene of this mixture may be chosen from polypropylene amorphous, crystalline, highly crystalline, isotactic, syndiotactic or atactic or a mixture thereof, or cast polypropylene.
  • This polypropylene may be a linear homopolymer, connected or star-shaped. Amorphous polypropylene is preferred.
  • the polyethylene may advantageously be a linear low density polyethylene.
  • the polyethylene may advantageously be present at a level of 20 to 50% while the polypropylene may be present at a level of 80 to 50%.
  • This container body 10 may be formed of a single layer of this mixture. Alternatively, the container body may consist of several superimposed layers, or coaxial, each made from this mixture. This container body can thus be made in the form of a laminated or unlaminated sleeve, laminated or not.
  • the container body 10 When made in several layers, the container body 10 can be made by coextrusion of said layers.
  • Such a container body 10 may have a thickness strictly less than 0.6 mm, better at 0.5 mm. This thickness may advantageously be between 0.3 and 0.4 mm.
  • the bottom 11 of the container 1 can be made in one piece with the container body 10. It may for example be formed by fixing the edges of the lower opening of the container by any appropriate means, such as by gluing, welding, or other.
  • the bottom 11 may be attached to the lower opening of the container body, and fixed by any appropriate means, such as by gluing, welding, or other.
  • the dispensing head 2 may be of the capsule service type. Such a dispensing head may comprise a base 20 comprising a dispensing opening 200 and a cover or flap 21.
  • This flap 21 may be pivotally mounted on said base so as to be movable between a closed position and a release position of said opening 200. To do this, a hinge may be provided in the rear part of the flap.
  • the flap 21 may include a sealing bush 210 configured to snugly engage said opening 200 in the closed position.
  • Such a flap 21 may also include a flat or recess 211, located in front of the flap, opposite the hinge 24 whose function will be discussed later in the description.
  • the base 20 may comprise a plate 22 through which said opening 200 is provided. This base may also comprise a peripheral skirt 23.
  • This skirt 23 may comprise an outwardly flaring portion 230, possibly to a free end 233. Such a portion may thus be of curved or rounded profile.
  • the skirt 23 may comprise one or more reliefs 232 whose function will be mentioned later in this description. These reliefs may be provided on the rounded portion 230. Such reliefs may comprise one or more rings (s) annular (s), if appropriate concentric. Alternatively, they may comprise several protuberances, discretely and circumferentially distributed.
  • the skirt 23 may also comprise a flat or recess 231.
  • the recess 211 of the flap may be positioned in the extension of the recess 231.
  • Such recesses 211, 231 may then used to position a finger of the user, and in particular of the thumb, in order to facilitate the raising of the flap 21 relative to the base 20, when the latter wishes to rotate said flap of its closed position towards its position of release of the opening 200.
  • This dispensing head can be made in one piece.
  • this dispensing head can be made of material. More specifically, this head can be made by molding, and in particular by injection molding.
  • the base 20 and the flap 21 can be articulated in rotation by means of a hinge-film 24.
  • the dispensing head 2 is made of polypropylene.
  • the polypropylene used may be amorphous, crystalline, highly crystalline, isotactic, syndiotactic or atactic polypropylene or a mixture thereof, or cast polypropylene.
  • This polypropylene may be a linear homopolymer, connected or star-shaped. Nonlinear amorphous polypropylene is preferred.
  • the dispensing head 2 is welded to the container body 10.
  • this head and this body can be welded to one another by ultrasonic energy.
  • the ultrasonic frequencies used can be between 20 kHz and 100 kHz.
  • the energy consumed may be less than 1200 Joule, better below 600 Joule, for example between 200 and 500 Joule, for example of the order of 250 to 350 Joule.
  • Such a weld can be performed in a time interval of between 0.05 and 2 seconds.
  • a thermal or laser weld can be implemented.
  • FIGS. 4 to 6 represent a second embodiment of a device for packaging and dispensing a product according to the invention. For the sake of clarity, only the differences of this second embodiment with respect to the first embodiment will be mentioned.
  • the container body 10 comprises a section taken transversely to the elongation axis X of circular shape.
  • This section may be of substantially regular size over the entire height container body, for example over at least 90% of its height, better 95% or more.
  • the bottom 11 may optionally be attached to the lower opening of the container body 10 and fixed by any appropriate means such as gluing, welding or other.
  • the base 20 may comprise reinforcing means 220 for stiffening the dispensing head.
  • These means may comprise a rib extending from the plate 22.
  • these means may comprise two ribs extending on either side of the dispensing opening 200.
  • Such ribs may have a curved profile. They may extend along the periphery of the plate 22.
  • These ribs may be useful both for the manufacture of the device and for its use. In particular, they may provide more stability to the dispensing head when the container body 10 is welded to the skirt 23 or when the device is shelves, or more operable of this device in use.
  • Ribs may alternatively or additionally be provided on the skirt 23. They may extend inside or outside this base.
  • the plate 22 may be at least partly inclined at an angle ⁇ relative to a cutting plane transversely to the axis of elongation X.
  • the plate may comprise a groove 221 defined by the ribs 220. This groove may be traversed by the distribution opening 200. This groove may extend along an inclined face relative to the cutting plane transversely to the axis of elongation X along said angle ⁇ .
  • This angle ⁇ may for example be between 1 and 60 °, in particular of the order of 15 ° C. Such a slope promotes a better return of product flowing from the container 1 through the opening 200.
  • the opening 200 may be eccentric relative to the axis of elongation X.
  • Such a groove 221 can define a housing for the positioning, by shape correspondence, of the shutter 21 in the closed position.
  • the product packaged in said device according to the invention may be a cosmetic product, including care, pharmaceutical or food processing.
  • a product may be in fluidic form.
  • the cosmetic product may for example be a perfume, a sunscreen, a self-tanner, a makeup product such as an eye shadow, a blush or a foundation or a care product such as an anti-wrinkle cream or a moisturizer, a hair product such as a shampoo or gel, or other.
  • the container body 10 may consist of polypropylene, for example from extrusion blow molding, and the dispensing head 2 may be obtained from the polyethylene mixture and the polypropylene, for example by injection-molding.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)
  • Tubes (AREA)
  • Containers Having Bodies Formed In One Piece (AREA)
  • Packages (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
  • Vending Machines For Individual Products (AREA)

Abstract

The device has a distribution head (2) welded on a body (10) of a container (1), where the body comprises a layer made of a mixture of polypropylene and polyethylene e.g. low density linear polyethylene. The distribution head comprises a base plate (20) provided with a distribution opening (200) and a flap (21) that is movable between a closing position and a releasing position of the opening. The distribution head is made of polypropylene by injection molding, and the base plate comprises a reinforcement unit provided with curved profile ribs.

Description

La présente invention concerne un dispositif de conditionnement d'un produit notamment cosmétique, y compris de soin ou un parfum, pharmaceutique ou encore agro-alimentaire.The present invention relates to a device for packaging a product, in particular a cosmetic product, including a care product or a perfume product, a pharmaceutical product or an agro-food product.

Un domaine privilégié, mais non exclusif, de la présente invention concerne la distribution d'un produit sous forme fluidique, et notamment sous forme de lotion, de gel, de crème, de pâte ou liquide.A preferred, but not exclusive, field of the present invention relates to the dispensing of a product in fluidic form, and especially in the form of lotion, gel, cream, paste or liquid.

Par « produit cosmétique », on entend un produit tel que défini dans la Directive 93/35/CEE du Conseil du 14 juin 1993."Cosmetic product" means a product as defined in Council Directive 93/35 / EEC of 14 June 1993.

Les documents DE20311719U , EP0668216 , EP1010639 , EP1138605 , FR2737704 , FR2872792 , JP2005-1717 , US5690764 , US6405896 et W02005056410 divulguent des exemples de dispositifs de conditionnement et de distribution de produit de l'art antérieur.The documents DE20311719U , EP0668216 , EP1010639 , EP1138605 , FR2737704 , FR2872792 , JP2005-1717 , US5690764 , US6405896 and W02005056410 disclose examples of prior art product packaging and dispensing devices.

En particulier, on connaît de l'art antérieur des dispositifs comprenant un récipient et une tête de distribution à fixer l'un à l'autre, le cas échéant par soudage, à réaliser en un même matériau afin d'éviter toute incompatibilité de matériau(x).In particular, there is known from the prior art devices comprising a container and a dispensing head to be fixed to one another, if necessary by welding, to be made of the same material in order to avoid any incompatibility of material. (x).

Le document DE20311719U divulgue par exemple un dispositif de conditionnement et de distribution de produit comprenant une tête de distribution, du type capsule service, et un corps de récipient, réalisé en un même matériau plastique tel que du polyéthylène, soudé l'un à l'autre.The document DE20311719U discloses for example a product packaging and dispensing device comprising a dispensing head, of the service capsule type, and a container body, made of a same plastic material such as polyethylene, welded to one another.

Le document US6405896 divulgue également un dispositif de conditionnement et de distribution de produit comprenant un corps de récipient et une tête de distribution du type capsule à service à réaliser en un même matériau.The document US6405896 also discloses a product packaging and dispensing device comprising a container body and a service capsule type dispensing head to be made of the same material.

Le document US6511568 décrit un procédé pour améliorer l'adhésion entre le corps et la tête d'un tube comprenant respectivement un polypropylène et un polyéthylène, consistant à mélanger au polypropylène et/ou au polyéthylène un polymère formé par une réaction de polymérisation avec un catalyseur à site unique, notamment un métallocène, procédé par lequel peut être obtenu un dispositif de conditionnement selon le préambule de la revendication 1.The document US6511568 describes a method for improving the adhesion between the body and the head of a tube respectively comprising a polypropylene and a polyethylene, comprising mixing with polypropylene and / or polyethylene a polymer formed by a polymerization reaction with a single site catalyst, in particular a metallocene, process by which a conditioning device according to the preamble of claim 1 can be obtained.

On connaît en outre de l'art antérieur des dispositifs dans lesquels une pièce intermédiaire est prévue entre un récipient et une tête de distribution servant d'une part à la fixation de ce récipient et d'autre part à la fixation de ladite tête de distribution.Also known from the prior art devices in which an intermediate piece is provided between a container and a dispensing head serving firstly to the attachment of this container and secondly to the attachment of said dispensing head .

Le document FR2872792 divulgue par exemple un dispositif de conditionnement et de distribution de produit comprenant un corps de récipient souple, réalisé à partir de polyéthylène, pourvu d'un goulot rapporté, également réalisé en polyéthylène, sur lequel est fixée par encliquetage une tête de distribution du type capsule service, réalisée en polypropylène.The document FR2872792 discloses for example a product packaging and dispensing device comprising a flexible container body, made from polyethylene, provided with an attached neck, also made of polyethylene, on which is fixed by snapping a dispensing head of the capsule type service, made of polypropylene.

Toutefois, un inconvénient lié à un tel dispositif est qu'il peut être considéré comme lourd dans le domaine technique considéré, de coût de revient élevé, et de fabrication complexe.However, a disadvantage associated with such a device is that it can be considered as heavy in the technical field considered, high cost, and complex manufacturing.

Un but de la présente invention est donc de fournir un dispositif surmontant au moins un des inconvénients susmentionnés.An object of the present invention is therefore to provide a device overcoming at least one of the aforementioned drawbacks.

Un but de la présente invention est de fournir un dispositif ne nécessitant que peu de pièces constitutives pour sa réalisation. En particulier, un but de la présente invention est de fournir un dispositif ne nécessitant que très peu de matériau pour sa réalisation. Par exemple un but est de procurer une économie de matière première de l'ordre de 50%.An object of the present invention is to provide a device requiring only a few component parts for its production. In particular, an object of the present invention is to provide a device requiring very little material for its production. For example, a goal is to provide a raw material saving of the order of 50%.

Un but de l'invention est également de fournir un dispositif de conditionnement de poids très léger.An object of the invention is also to provide a very lightweight weight conditioning device.

Un but de l'invention est encore de réaliser un dispositif ne nécessitant que peu d'énergie pour sa réalisation. Un but encore de la présente invention est de fournir un dispositif facilement recyclable.An object of the invention is still to provide a device requiring little energy for its implementation. Another object of the present invention is to provide an easily recyclable device.

Par voie de conséquence, un but global de la présente invention est de fournir un dispositif écologique, facile à fabriquer, simple de mise en oeuvre et de coût de revient modéré.Accordingly, an overall object of the present invention is to provide an ecological device, easy to manufacture, simple to implement and moderate cost.

Un but de la présente invention est également de fournir un dispositif nomade, facilement transportable.An object of the present invention is also to provide a nomadic device, easily transportable.

Un autre but de la présente invention est encore de fournir un dispositif permettant une distribution de produit sans effort substantiel de l'utilisateur.Another object of the present invention is still to provide a device for product distribution without substantial effort of the user.

Un but de la présente invention est également de fournir un dispositif parfaitement étanche au produit contenu à l'intérieur du dispositif, notamment entre la tête de distribution et le récipient, et parfaitement étanche à l'air ambiant.An object of the present invention is also to provide a device perfectly sealed to the product contained inside the device, in particular between the dispensing head and the container, and perfectly sealed to the ambient air.

Un but de la présente invention est encore de fournir un dispositif d'aspect global esthétique, notamment ayant une ou plusieurs lignes de soudures, nettes et résistantes.An object of the present invention is still to provide a device of overall aesthetic appearance, in particular having one or more lines of welds, sharp and resistant.

Un autre but de l'invention est enfin de réaliser un dispositif résistant à un passage dans une enceinte de stérilisation tel qu'autoclave en vue de diminuer l'utilisation de conservateurs.Another object of the invention is finally to provide a device resistant to passage in a sterilization chamber such as autoclave to reduce the use of preservatives.

La présente invention a donc pour objet un dispositif de conditionnement et de distribution d'un produit, notamment cosmétique, comprenant:

  • un corps de récipient,
  • une tête de distribution soudée sur ce corps,
l'un parmi le corps et la tête comprenant une couche d'un mélange de polypropylène et de polyéthylène, et l'autre étant constitué de polypropylène, le polyéthylène du mélange de polypropylène et de polyéthylène étant préférentiellement présent à hauteur de 20 à 50%.The subject of the present invention is therefore a device for packaging and dispensing a product, in particular a cosmetic product, comprising:
  • a container body,
  • a distribution head welded on this body,
one of the body and the head comprising a layer of a mixture of polypropylene and polyethylene, and the other being made of polypropylene, the polyethylene of the polypropylene and polyethylene mixture being preferably present at a level of 20 to 50% .

Cette caractéristique permet, malgré le préjugé technique qui prévoit de réaliser en un même matériau respectif deux pièces à souder l'une à l'autre, d'améliorer le soudage des deux pièces l'une par rapport à l'autre et de bénéficier d'une ligne de soudure nette. Une telle caractéristique permet ainsi d'assurer une bonne fixation de la tête de distribution sur le corps de récipient, conférant ainsi d'une part une bonne étanchéité du dispositif à hauteur de la ligne d'assemblage et d'autre part un effet esthétique au dispositif. Elles assurent également une grande solidité au choc du dispositif.This characteristic makes it possible, despite the technical prejudice that provides for making two parts to be welded to one another in the same respective material, to improve the welding of the two parts relative to each other and to benefit from a clean weld line. Such a characteristic thus makes it possible to ensure a good fixing of the dispensing head on the container body, thus conferring on the one hand a good sealing of the device at the level of the assembly line and, on the other hand, an aesthetic effect on the device. They also provide great strength to the shock of the device.

L'expression « mélange de polypropylène et de polyéthylène » vise à couvrir un mélange composé de polypropylène et de polyéthylène interagissant l'un avec l'autre par des liaisons énergétiques, par exemple du type Van der Walls, ou par des liaisons covalentes, et vise à couvrir également un mélange composé de monomères d'éthylène et de monomères de propylène liés ensemble sous forme d'un ou plusieurs copolymère(s) d'éthylène et de propylène.The expression "mixture of polypropylene and polyethylene" is intended to cover a mixture composed of polypropylene and polyethylene interacting with each other by energetic bonds, for example of the Van der Walls type, or by covalent bonds, and is also intended to cover a mixture of ethylene monomers and propylene monomers bound together as one or more ethylene-propylene copolymers.

Le corps de récipient peut être obtenu à partir du mélange de polyéthylène et polypropylène. Ce corps de récipient peut être issu d'un manchon monocouche, non stratifié. En variante, il peut être issu d'un manchon réalisé en plusieurs couches, par exemple obtenu par co-extrusion ou par collage au moyen d'un adhésif tel que de l'EVOH prévu entre deux couches. Le corps de récipient peut donc comprendre une ou plusieurs couches, le cas échéant constituée(s) chacune du mélange de polyéthylène et polypropylène, comprenant un polypropylène, sous l'une de ses formes, mélangé avec un polyéthylène, sous l'une de ses formes décrites ci-dessous.The container body can be obtained from the blend of polyethylene and polypropylene. This container body may be from a monolayer sleeve, not laminated. Alternatively, it may be from a sleeve made of several layers, for example obtained by coextrusion or by gluing by means of an adhesive such as EVOH provided between two layers. The container body may therefore comprise one or more layers, where appropriate each consisting of the mixture of polyethylene and polypropylene, comprising a polypropylene, in one of its forms, mixed with a polyethylene, under one of its forms described below.

La tête de distribution peut quant à elle comprendre une ou plusieurs couches uniquement composée(s) de polypropylène sous l'une de ses formes, ou un mélange de celles-ci. De telles formes sont ci-dessous décrites.The dispensing head may in turn comprise one or more layers composed solely of polypropylene in one of its forms, or a mixture thereof. Such forms are described below.

Par « polypropylène », il convient d'entendre polypropylène amorphe, cristallin, hautement cristallin, isotactique, syndiotactique ou atactique ou un mélange de ceux-ci, ou encore un polypropylène cast. Ce polypropylène peut être un homopolymère linéaire, branché ou étoilé. Le polypropylène mis en oeuvre est avantageusement amorphe ou semi-cristallin.By "polypropylene" is meant amorphous, crystalline, highly crystalline, isotactic, syndiotactic or atactic polypropylene or a mixture thereof, or cast polypropylene. This polypropylene may be a linear homopolymer, connected or star-shaped. The polypropylene used is advantageously amorphous or semi-crystalline.

Par « polyéthylène », il convient d'entendre polyéthylène à masse molaire élevée, polyéthylène à haute densité, polyéthylène réticulé à haute densité, polyéthylène à moyenne densité, polyéthylène à basse densité, polyéthylène réticulé à basse densité, polyéthylène linéaire à basse densité et polyéthylène à très basse densité. Le polyéthylène linéaire à basse densité est préféré."Polyethylene" means high molecular weight polyethylene, high density polyethylene, high density crosslinked polyethylene, medium density polyethylene, low density polyethylene, low density crosslinked polyethylene, linear low density polyethylene and polyethylene at very low density. Linear low density polyethylene is preferred.

Les compositions selon l'invention peuvent être préparées très facilement par mélange des constituants à l'état fondu.The compositions according to the invention can be prepared very easily by mixing the constituents in the molten state.

Une méthode courante pour réaliser le mélange de polypropylène et de polyéthylène consiste à réaliser un mélange de granulés de polypropylène, par exemple amorphe, et de granulés de polyéthylène, par exemple linéaire à basse densité, puis à transformer directement ce mélange en tête de distribution, ou préférentiellement en corps de récipient, sur une machine de mise en oeuvre par exemple du type extrudeuse ou presse à injecter.A common method for producing the mixture of polypropylene and polyethylene consists in producing a mixture of polypropylene granules, for example amorphous granules, and polyethylene granules, for example linear low density, and then directly transforming this mixture into a distribution head. or preferably in container body, on an implementation machine for example of the extruder type or injection molding machine.

Une autre méthode peut également consister à partir d'un mélange de poudre de polypropylène, par exemple amorphe, et de poudre de polyéthylène, par exemple linéaire à basse densité, que l'on transforme en tête de distribution, ou préférentiellement en corps de récipient, directement ou après granulation intermédiaire.Another method may also consist of a mixture of polypropylene powder, for example amorphous, and of polyethylene powder, for example linear low density powder, which is converted into a dispensing head, or preferably into a container body. directly or after intermediate granulation.

En pratique, on peut préparer des compositions contenant de 20 à 50% en poids de polyéthylène, par exemple linéaire à basse densité, afin d'obtenir les propriétés désirées, telles qu'une augmentation de la souplesse ainsi que de l'étirabilité à froid et à chaud, et une solidité accrue. Ces qualités sont recherchées en particulier pour la transformation par extrusion-soufflage, extrusion-étirage ou thermoformage. La mise en oeuvre de ces techniques en est facilité et les objets obtenus possèdent de meilleures caractéristiques, tout en conservant l'aspect du polypropylène amorphe.In practice, compositions containing from 20 to 50% by weight of polyethylene, for example linear low density, can be prepared in order to obtain the desired properties, such as increased flexibility and cold stretchability. and hot, and increased strength. These qualities are sought in particular for processing by extrusion blow molding, extrusion stretching or thermoforming. The implementation of these techniques is facilitated and the objects obtained have better characteristics, while maintaining the appearance of amorphous polypropylene.

Par ailleurs, une méthode pour réaliser une copolymérisation d'éthylène et de propylène peut notamment être mise en oeuvre par un procédé de fabrication en lit fluidisé.Furthermore, a method for carrying out a copolymerization of ethylene and propylene may in particular be carried out by a fluidized bed manufacturing method.

Le polypropylène mis en oeuvre dans la présente invention peut présenter une température de transition vitreuse Tg comprise entre 65 et 75°C et notamment de l'ordre de 70°C. Il peut présenter une température de fusion Tf comprise entre 130 et 170°. Sa densité peut être comprise entre 0.890 et 0.910 g/cm3, et notamment peut être de l'ordre de 0.905 g/cm3. Le polypropylène mis en oeuvre dans la présente invention est par exemple vendu sous l'appellation MOPLEN RP 210G® par la société LYONDELL BASELL.The polypropylene used in the present invention may have a glass transition temperature Tg of between 65 and 75 ° C. and in particular of the order of 70 ° C. It may have a melting temperature Tf of between 130 and 170 °. Its density can be between 0.890 and 0.910 g / cm3, and in particular can be of the order of 0.905 g / cm3. The polypropylene used in the present invention is for example sold under the name MOPLEN RP 210G® by the company LYONDELL BASELL.

Le polyéthylène mis en oeuvre dans la présente invention peut présenter une température de transition vitreuse Tg comprise entre 105 et 110°C et notamment de l'ordre de 108°C. Il peut présenter une température de fusion Tf comprise entre 120 et 125°. Sa densité peut être comprise entre 0.860 et 0.960 g/cm3, et notamment peut être de l'ordre de 0.920 g/cm3. Le polyéthylène mis en oeuvre dans la présente invention est vendu sous l'appellation DOW LEX 2045G® par la société DOW CHEMICAL.The polyethylene used in the present invention may have a glass transition temperature Tg of between 105 and 110 ° C. and in particular of the order of 108 ° C. It may have a melting temperature Tf of between 120 and 125 °. Its density can be between 0.860 and 0.960 g / cm3, and in particular can be of the order of 0.920 g / cm3. The polyethylene used in the present invention is sold under the name DOW LEX 2045G® by Dow Chemical.

Le mélange de polypropylène et polyéthylène peut présenter une température de transition vitreuse Tg comprise entre 100 et 110°C et notamment de l'ordre de 108°C. Il peut présenter une température de fusion Tf comprise entre 160 et 170°. Sa densité peut être comprise entre 0.88 et 0.92 g/cm3, et notamment peut être de l'ordre de 0.90g/cm3.The mixture of polypropylene and polyethylene may have a glass transition temperature Tg of between 100 and 110 ° C. and in particular of the order of 108 ° C. It may have a melting temperature Tf of between 160 and 170 °. Its density may be between 0.88 and 0.92 g / cm3, and in particular may be of the order of 0.90 g / cm3.

Le corps de récipient peut présenter une épaisseur de paroi strictement inférieure à 0.6mm, notamment comprise entre 0.3 et 0.4mm. Il peut avoir un axe d'allongement X, et peut présenter une section prise transversalement à cet axe de forme polygonale, telle que carrée, ou circulaire ou ovale.The container body may have a wall thickness strictly less than 0.6 mm, in particular between 0.3 and 0.4 mm. It may have an axis of elongation X, and may have a section taken transversely to this axis of polygonal shape, such as square, or circular or oval.

Le corps de récipient peut ne pas être issu d'un laminé mais d'une filière à extruder de profil annulaire, en particulier circulaire ou ovale. Il peut être dépourvu de col de distribution. Autrement dit, il peut être dépourvu d'un épaulement formant rétreint à partir duquel se dresse un goulot. Ce corps peut ainsi être un tube de section sensiblement régulière et ce sur sensiblement toute sa hauteur, par exemple sur au moins 90% de sa hauteur, mieux 95%, voire 98% ou encore 100%.The container body may not be derived from a laminate but from an extrusion die of annular profile, in particular circular or oval. It may be devoid of distribution collar. In other words, it may be devoid of a shrinking shoulder from which a neck rises. This body can thus be a tube of substantially regular section and this over substantially its entire height, for example on at least 90% of its height, better 95%, even 98% or 100%.

La tête de distribution peut comporter une embase comprenant une ouverture de distribution, un volet, éventuellement rapporté, monté mobile entre une position d'obturation et une position de libération de ladite ouverture. En particulier, ce volet peut être monté pivotant sur ladite embase entre une position d'obturation et une position de libération de ladite ouverture. Cette embase et ce volet peuvent être venus de matière, le volet étant relié à ladite embase par une charnière-film. Ce volet peut en variante être articulé par une charnière à axe rapporté.The dispensing head may comprise a base comprising a dispensing opening, a shutter, optionally attached, mounted movably between a closed position and a release position of said opening. In particular, this flap can be pivotally mounted on said base between a closed position and a release position of said opening. This base and this flap can be made of material, the flap being connected to said base by a hinge-film. This flap can alternatively be articulated by a hinge with reported axle.

Cette tête de distribution peut être obtenue par injection-moulage. Une telle tête de distribution peut ainsi être du type capsule-service. Une telle tête de distribution peut être mono ou bi-matière. Cette embase et ce volet peuvent ainsi éventuellement venir d'une seule pièce réalisée en un matériau respectif, identique ou distinct.This dispensing head can be obtained by injection molding. Such a dispensing head can thus be of the capsule-service type. Such a dispensing head may be mono or bi-material. This base and this flap may thus come from a single piece made of a respective material, identical or separate.

L'embase peut comporter une jupe périphérique comportant une portion arrondie, le cas échéant pourvu d'un ou plusieurs relief(s), pour le soudage du corps de récipient sur la tête de distribution.The base may comprise a peripheral skirt having a rounded portion, optionally provided with one or more relief (s), for welding the container body on the dispensing head.

Cette embase peut comporter des moyens de renfort agencés de part et d'autre de ladite ouverture de distribution, destinés à faciliter l'assemblage et l'utilisation du dispositif. Ces moyens de renfort peuvent comporter des nervures de profil courbe.This base may comprise reinforcing means arranged on either side of said dispensing opening, intended to facilitate the assembly and use of the device. These reinforcing means may comprise curved profile ribs.

Le corps de récipient et la tête de distribution peuvent être solidarisés l'un à l'autre par soudure thermique notamment par friction, gaz chaud, mords chauds, ou au laser ou aux ultrasons.The container body and the dispensing head may be secured to one another by thermal welding, in particular by friction, hot gas, hot strikes, or by laser or ultrasound.

Le dispositif peut avoir un poids à vide maximal de 20g. Avantageusement, ce poids peut être compris entre 7 et 18g, par exemple entre 11 et 16g et notamment de l'ordre de 13g. Un tel poids convient par exemple pour un corps de récipient ayant une contenance de 200mL et un diamètre de l'ordre de 50mm. En particulier, le corps à vide peut peser entre 7 et 9g, notamment environ 8g. La tête de distribution peut quant à elle peser entre 4 et 7g, notamment environ 5g.The device can have a maximum curb weight of 20g. Advantageously, this weight can be between 7 and 18 g, for example between 11 and 16 g and in particular of the order of 13 g. Such a weight is suitable for example for a body of container having a capacity of 200mL and a diameter of the order of 50mm. In particular, the empty body can weigh between 7 and 9g, in particular about 8g. The dispensing head can weigh between 4 and 7g, including about 5g.

Le dispositif selon l'invention peut être constitué uniquement de deux pièces à savoir un corps de récipient fermé par un fond venu de matière avec ce corps, par exemple par soufflage et en particulier extrusion soufflage, et une tête de distribution du type capsule service venue de matière soudée sur ce corps, par exemple par moulage, notamment injection-moulage. Il peut également être constitué de seulement trois pièces à savoir un corps de récipient, un fond rapporté sur ce corps, par exemple soudé, et une tête de distribution du type capsule service venue de matière soudée sur ce corps, à l'opposé du fond rapporté.The device according to the invention may consist solely of two parts, namely a container body closed by a bottom made of material with this body, for example by blowing and in particular extrusion blow molding, and a dispensing head of the capsule type service come of material welded to this body, for example by molding, in particular injection-molding. It may also consist of only three parts, namely a container body, a bottom attached to this body, for example welded, and a service capsule-type dispensing head coming from material welded to this body, opposite the bottom reported.

La présente invention a encore pour objet un dispositif de conditionnement et de distribution d'un produit, notamment cosmétique, comprenant:

  • un corps de récipient comprenant une couche obtenue d'un mélange de polyéthylène et polypropylène,
  • une tête de distribution constituée de polypropylène, ledit corps et ladite tête étant soudés l'un au contact de l'autre.
The present invention also relates to a device for packaging and dispensing a product, in particular a cosmetic product, comprising:
  • a container body comprising a layer obtained from a mixture of polyethylene and polypropylene,
  • a dispensing head made of polypropylene, said body and said head being welded one in contact with the other.

L'invention pourra être mieux comprise à la lecture de la description détaillée suivante, faite en référence aux dessins accompagnants illustrant un mode de réalisation non limitatif de celle-ci, et sur lesquels :

  • la figure 1 est une vue en élévation en perspective de côté d'un premier mode de réalisation d'un dispositif de conditionnement et de distribution selon l'invention,
  • la figure 2 est une vue en perspective de la tête de distribution représentée sur la figure 1 en configuration ouverte,
  • la figure 3 est une vue en section longitudinale du dispositif représenté sur la figure 1 avec la tête de distribution en configuration ouverte,
  • la figure 4 est une vue de dos en perspective d'un deuxième mode de réalisation d'un dispositif de conditionnement et de distribution selon l'invention,
  • la figure 5 est une vue en perspective de la tête de distribution représentée sur la figure 4 en configuration ouverte,
  • la figure 6 est une vue en section longitudinale du dispositif représenté sur la figure 4 avec la tête de distribution en configuration ouverte.
The invention may be better understood on reading the following detailed description, made with reference to the accompanying drawings illustrating a non-limiting embodiment of the latter, and in which:
  • the figure 1 is a side perspective elevational view of a first embodiment of a packaging and dispensing device according to the invention,
  • the figure 2 is a perspective view of the dispensing head shown on the figure 1 in open configuration,
  • the figure 3 is a longitudinal sectional view of the device shown in FIG. figure 1 with the dispensing head in open configuration,
  • the figure 4 is a perspective rear view of a second embodiment of a packaging and dispensing device according to the invention,
  • the figure 5 is a perspective view of the dispensing head represented on the figure 4 in open configuration,
  • the figure 6 is a longitudinal sectional view of the device shown in FIG. figure 4 with the dispensing head in open configuration.

Les figures 1 à 3 représentent un premier mode de réalisation d'un dispositif de conditionnement et de distribution d'un produit, notamment cosmétique, y compris de soin, pharmaceutique ou encore agro-alimentaire.The Figures 1 to 3 represent a first embodiment of a device for packaging and dispensing a product, in particular a cosmetic product, including a care product, a pharmaceutical product or an agro-food product.

Ce dispositif comporte d'une part un récipient 1 et d'autre part une tête de distribution 2.This device comprises on the one hand a container 1 and on the other hand a dispensing head 2.

Le récipient 1 peut définir un axe d'allongement X. Cet axe peut être un axe de révolution. Ce récipient peut comporter un corps de récipient ou paroi latérale 10 comprenant deux ouvertures opposées dites inférieure et supérieure, respectivement obturée d'une part par un fond 11, éventuellement rapporté, et revêtue d'autre part de la tête de distribution 2.The container 1 can define an axis of elongation X. This axis can be an axis of revolution. This container may comprise a container body or side wall 10 comprising two opposing openings called lower and upper, respectively sealed on the one hand by a bottom 11, optionally attached, and on the other hand covered with the dispensing head 2.

Selon l'invention, le corps de récipient 10 et la tête de distribution 2 sont soudés ensemble, l'un étant constitué de polypropylène, l'autre réalisé en un mélange de polypropylène et de polyéthylène.According to the invention, the container body 10 and the dispensing head 2 are welded together, one being made of polypropylene, the other made of a mixture of polypropylene and polyethylene.

Le corps de récipient 10 peut provenir selon un mode de réalisation préféré de la découpe d'un manchon ou tube extrudé au travers d'une filière de profil correspondant, en particulier annulaire. Un tel corps peut résulter d'une extrusion soufflage.The container body 10 may come according to a preferred embodiment of the cutting of a sleeve or extruded tube through a die of corresponding profile, in particular annular. Such a body can result from extrusion blow molding.

Le corps de récipient 10 peut présenter une section, prise transversalement à l'axe d'allongement X du récipient, de forme polygonale, telle que carrée, ou circulaire ou en l'occurrence, ovale.The container body 10 may have a section, taken transversely to the axis of elongation X of the container, of polygonal shape, such as square, or circular or in this case, oval.

Selon un mode de réalisation préféré, le corps de récipient 10 peut être obtenu à partir du mélange de polyéthylène et de polypropylène.According to a preferred embodiment, the container body 10 can be obtained from the blend of polyethylene and polypropylene.

Le polypropylène de ce mélange peut être choisi parmi un polypropylène amorphe, cristallin, hautement cristallin, isotactique, syndiotactique ou atactique ou un mélange de ceux-ci, ou encore un polypropylène cast. Ce polypropylène peut être un homopolymère linéaire, branché ou étoilé. Le polypropylène amorphe est préféré.The polypropylene of this mixture may be chosen from polypropylene amorphous, crystalline, highly crystalline, isotactic, syndiotactic or atactic or a mixture thereof, or cast polypropylene. This polypropylene may be a linear homopolymer, connected or star-shaped. Amorphous polypropylene is preferred.

Le polyéthylène peut être avantageusement un polyéthylène à basse densité linéaire. Le polyéthylène peut avantageusement être présent à hauteur de 20 à 50% tandis que le polypropylène peut être présent à hauteur de 80 à 50%.The polyethylene may advantageously be a linear low density polyethylene. The polyethylene may advantageously be present at a level of 20 to 50% while the polypropylene may be present at a level of 80 to 50%.

Ce corps de récipient 10 peut être formé d'une couche unique de ce mélange. En variante, le corps de récipient peut être constitué de plusieurs couches superposées, ou co-axiales, réalisées chacune à partir de ce mélange. Ce corps de récipient peut ainsi être réalisé sous forme d'un manchon laminé ou non, stratifié ou non.This container body 10 may be formed of a single layer of this mixture. Alternatively, the container body may consist of several superimposed layers, or coaxial, each made from this mixture. This container body can thus be made in the form of a laminated or unlaminated sleeve, laminated or not.

Lorsque réalisé en plusieurs couches, le corps de récipient 10 peut être réalisé par co-extrusion desdites couches.When made in several layers, the container body 10 can be made by coextrusion of said layers.

Un tel corps de récipient 10 peut présenter une épaisseur strictement inférieure à 0.6mm, mieux à 0.5 mm. Cette épaisseur peut-être avantageusement comprise entre 0.3 et 0.4mm.Such a container body 10 may have a thickness strictly less than 0.6 mm, better at 0.5 mm. This thickness may advantageously be between 0.3 and 0.4 mm.

Le fond 11 du récipient 1 peut être réalisé monobloc avec le corps de récipient 10. Il peut par exemple être formé par fixation des bords de l'ouverture inférieure du récipient par tous moyens appropriés, tel que par collage, soudage, ou autre.The bottom 11 of the container 1 can be made in one piece with the container body 10. It may for example be formed by fixing the edges of the lower opening of the container by any appropriate means, such as by gluing, welding, or other.

Selon une variante de réalisation, par exemple illustrée sur la figure 6, le fond 11 peut être rapporté sur l'ouverture inférieure du corps de récipient, et fixé par tous moyens appropriés, tel que par collage, soudage, ou autre.According to an alternative embodiment, for example illustrated on the figure 6 , the bottom 11 may be attached to the lower opening of the container body, and fixed by any appropriate means, such as by gluing, welding, or other.

La tête de distribution 2 peut être du type capsule service. Une telle tête de distribution peut comprendre une embase 20 comportant une ouverture de distribution 200 et un capot ou volet 21.The dispensing head 2 may be of the capsule service type. Such a dispensing head may comprise a base 20 comprising a dispensing opening 200 and a cover or flap 21.

Ce volet 21 peut être monté pivotant sur ladite embase de manière à être déplaçable entre une position d'obturation et une position de libération de ladite ouverture 200. Pour ce faire, une charnière peut être prévue en partie arrière du volet.This flap 21 may be pivotally mounted on said base so as to be movable between a closed position and a release position of said opening 200. To do this, a hinge may be provided in the rear part of the flap.

Le volet 21 peut comprendre une douille d'étanchéité 210 configurée pour venir en prise serrante dans ladite ouverture 200 en position d'obturation.The flap 21 may include a sealing bush 210 configured to snugly engage said opening 200 in the closed position.

Un tel volet 21 peut également comprendre un méplat ou renfoncement 211, situé en partie avant du volet, à l'opposé de la charnière 24 dont la fonction sera évoquée ultérieurement dans la description.Such a flap 21 may also include a flat or recess 211, located in front of the flap, opposite the hinge 24 whose function will be discussed later in the description.

L'embase 20 peut comprendre un plateau 22 au travers duquel est prévue ladite ouverture 200. Cette embase peut également comprendre une jupe périphérique 23.The base 20 may comprise a plate 22 through which said opening 200 is provided. This base may also comprise a peripheral skirt 23.

Cette jupe 23 peut comprendre une portion 230 s'évasant vers l'extérieur, et ce éventuellement jusqu'à une extrémité libre 233. Une telle portion peut être ainsi de profil courbe ou arrondi.This skirt 23 may comprise an outwardly flaring portion 230, possibly to a free end 233. Such a portion may thus be of curved or rounded profile.

La jupe 23 peut comprendre un ou plusieurs reliefs 232 dont la fonction sera évoquée ultérieurement dans cette description. Ces reliefs peuvent être prévus sur la portion arrondie 230. De tels reliefs peuvent comprendre un ou plusieurs jonc(s) annulaire(s), le cas échéant concentriques. En variante, ils peuvent comprendre plusieurs protubérances, discrètement et circonférentiellement réparties.The skirt 23 may comprise one or more reliefs 232 whose function will be mentioned later in this description. These reliefs may be provided on the rounded portion 230. Such reliefs may comprise one or more rings (s) annular (s), if appropriate concentric. Alternatively, they may comprise several protuberances, discretely and circumferentially distributed.

La jupe 23 peut également comporter un méplat ou renfoncement 231. En position d'obturation de l'ouverture 200 par le volet 21, le renfoncement 211 du volet peut se positionner dans le prolongement du renfoncement 231. De tels renfoncements 211, 231 peuvent alors servir au positionnement d'un doigt de l'utilisateur, et notamment du pouce, en vue de faciliter le soulèvement du volet 21 relativement à l'embase 20, lorsque ce dernier souhaite faire pivoter ledit volet de sa position d'obturation vers sa position de libération de l'ouverture 200.The skirt 23 may also comprise a flat or recess 231. In the closed position of the opening 200 by the flap 21, the recess 211 of the flap may be positioned in the extension of the recess 231. Such recesses 211, 231 may then used to position a finger of the user, and in particular of the thumb, in order to facilitate the raising of the flap 21 relative to the base 20, when the latter wishes to rotate said flap of its closed position towards its position of release of the opening 200.

Cette tête de distribution peut être réalisée monobloc. En particulier, cette tête de distribution peut être venue de matière. Plus précisément, cette tête peut être réalisée par moulage, et notamment par moulage par injection. L'embase 20 et le volet 21 peuvent être articulés en rotation au moyen d'une charnière-film 24.This dispensing head can be made in one piece. In particular, this dispensing head can be made of material. More specifically, this head can be made by molding, and in particular by injection molding. The base 20 and the flap 21 can be articulated in rotation by means of a hinge-film 24.

Selon un mode de réalisation préféré, la tête de distribution 2 est constituée de polypropylène. Là encore, le polypropylène mis en oeuvre peut être un polypropylène amorphe, cristallin, hautement cristallin, isotactique, syndiotactique ou atactique ou un mélange de ceux-ci, ou encore un polypropylène cast. Ce polypropylène peut être un homopolymère linéaire, branché ou étoilé. Le polypropylène amorphe non linéaire est préféré.According to a preferred embodiment, the dispensing head 2 is made of polypropylene. Here again, the polypropylene used may be amorphous, crystalline, highly crystalline, isotactic, syndiotactic or atactic polypropylene or a mixture thereof, or cast polypropylene. This polypropylene may be a linear homopolymer, connected or star-shaped. Nonlinear amorphous polypropylene is preferred.

La tête de distribution 2 est soudée sur le corps de récipient 10. En particulier, cette tête et ce corps peuvent être soudés l'un à l'autre par énergie ultrason. Les fréquences ultrasoniques mises en oeuvre peuvent être comprises entre 20kHz et 100kHz. L'énergie consommée peut être inférieure à 1200 Joule, mieux inférieure à 600 Joule, par exemple comprise entre 200 et 500 Joule, par exemple de l'ordre de 250 à 350 Joule. Une telle soudure peut être réalisée dans un intervalle de temps compris entre 0.05 et 2 secondes. En variante, une soudure thermique ou au laser peut être mise en oeuvre.The dispensing head 2 is welded to the container body 10. In particular, this head and this body can be welded to one another by ultrasonic energy. The ultrasonic frequencies used can be between 20 kHz and 100 kHz. The energy consumed may be less than 1200 Joule, better below 600 Joule, for example between 200 and 500 Joule, for example of the order of 250 to 350 Joule. Such a weld can be performed in a time interval of between 0.05 and 2 seconds. Alternatively, a thermal or laser weld can be implemented.

Les figures 4 à 6 représentent un deuxième mode de réalisation d'un dispositif de conditionnement et de distribution d'un produit selon l'invention. Par soucis de clarté, seules les différences de ce deuxième mode de réalisation par rapport au premier mode de réalisation seront évoquées.The Figures 4 to 6 represent a second embodiment of a device for packaging and dispensing a product according to the invention. For the sake of clarity, only the differences of this second embodiment with respect to the first embodiment will be mentioned.

Le corps de récipient 10 comprend dans cet exemple une section prise transversalement à l'axe d'allongement X de forme circulaire. Cette section peut être de dimension sensiblement régulière sur toute la hauteur corps de récipient, par exemple sur au moins 90% de sa hauteur, mieux 95% voire plus.In this example, the container body 10 comprises a section taken transversely to the elongation axis X of circular shape. This section may be of substantially regular size over the entire height container body, for example over at least 90% of its height, better 95% or more.

Le fond 11 peut éventuellement être rapporté sur l'ouverture inférieure du corps de récipient 10 et fixé par tous moyens appropriés tel que par collage, soudage ou autre.The bottom 11 may optionally be attached to the lower opening of the container body 10 and fixed by any appropriate means such as gluing, welding or other.

L'embase 20 peut comprendre des moyens de renfort 220 destinés à rigidifier la tête de distribution. Ces moyens peuvent comprendre une nervure s'étendant à partir du plateau 22. En particulier, ces moyens peuvent comprendre deux nervures s'étendant de part et d'autre de l'ouverture de distribution 200. De telles nervures peuvent présenter un profil courbe. Elles peuvent s'étendre le long du pourtour du plateau 22. Ces nervures peuvent être utiles aussi bien pour la fabrication du dispositif que pour son utilisation. En particulier, elles peuvent conférer davantage de stabilité à la tête de distribution lors de la soudure du corps de récipient 10 sur la jupe 23 ou lors de la mise en rayon du dispositif, ou davantage de maniabilité de ce dispositif en utilisation. Des nervures peuvent, en variante ou de façon additionnelle, être prévues sur la jupe 23. Elles peuvent s'étendre à l'intérieur ou à l'extérieur de cette embase.The base 20 may comprise reinforcing means 220 for stiffening the dispensing head. These means may comprise a rib extending from the plate 22. In particular, these means may comprise two ribs extending on either side of the dispensing opening 200. Such ribs may have a curved profile. They may extend along the periphery of the plate 22. These ribs may be useful both for the manufacture of the device and for its use. In particular, they may provide more stability to the dispensing head when the container body 10 is welded to the skirt 23 or when the device is shelves, or more operable of this device in use. Ribs may alternatively or additionally be provided on the skirt 23. They may extend inside or outside this base.

Le plateau 22 peut être au moins en partie incliné selon un angle α relativement à un plan coupant transversalement l'axe d'allongement X. En particulier, le plateau peut comprendre un sillon 221 délimité par les nervures 220. Ce sillon peut être traversé par l'ouverture de distribution 200. Ce sillon peut s'étendre selon un pan incliné relativement au plan coupant transversalement l'axe d'allongement X selon ledit angle α. Cet angle α peut par exemple être compris entre 1 et 60°, notamment de l'ordre de 15°C. Une telle pente favorise une meilleure restitution de produit s'écoulant du récipient 1 au travers de l'ouverture 200.The plate 22 may be at least partly inclined at an angle α relative to a cutting plane transversely to the axis of elongation X. In particular, the plate may comprise a groove 221 defined by the ribs 220. This groove may be traversed by the distribution opening 200. This groove may extend along an inclined face relative to the cutting plane transversely to the axis of elongation X along said angle α. This angle α may for example be between 1 and 60 °, in particular of the order of 15 ° C. Such a slope promotes a better return of product flowing from the container 1 through the opening 200.

Dans cet exemple de réalisation, l'ouverture 200 peut être excentrée relativement à l'axe d'allongement X.In this embodiment, the opening 200 may be eccentric relative to the axis of elongation X.

Un tel sillon 221 peut définir un logement pour le positionnement, par correspondance de forme, du volet 21 en position d'obturation.Such a groove 221 can define a housing for the positioning, by shape correspondence, of the shutter 21 in the closed position.

Le produit conditionné dans ledit dispositif selon l'invention peut être un produit cosmétique, y compris de soin, pharmaceutique ou encore agro-alimentaire. Un tel produit peut être sous forme fluidique. Le produit cosmétique peut par exemple être un parfum, une crème de protection solaire, un auto-bronzant, un produit de maquillage tel qu'un fard à paupières, un fard à joue ou un fond de teint ou encore un produit de soin tel qu'une crème anti-rides ou une crème hydratante, un produit capillaire tel qu'un shampoing ou un gel, ou autre.The product packaged in said device according to the invention may be a cosmetic product, including care, pharmaceutical or food processing. Such a product may be in fluidic form. The cosmetic product may for example be a perfume, a sunscreen, a self-tanner, a makeup product such as an eye shadow, a blush or a foundation or a care product such as an anti-wrinkle cream or a moisturizer, a hair product such as a shampoo or gel, or other.

Il est à noter que selon un autre mode de réalisation envisageable, le corps de récipient 10 peut être constitué de polypropylène, par exemple issu d'extrusion-soufflage, et la tête de distribution 2 peut être obtenue à partir du mélange de polyéthylène et de polypropylène, par exemple par injection-moulage.It should be noted that according to another conceivable embodiment, the container body 10 may consist of polypropylene, for example from extrusion blow molding, and the dispensing head 2 may be obtained from the polyethylene mixture and the polypropylene, for example by injection-molding.

Dans toute la description, l'expression « comportant un » ou « comprenant un » doit être considérée comme étant synonyme de « comportant au moins un » ou « comprenant au moins un », sauf si le contraire est spécifié.Throughout the description, the expression "comprising a" or "comprising a" must be considered to be synonymous with "comprising at least one" or "comprising at least one" unless the contrary is specified.

Claims (14)

  1. Device for packaging and dispensing a product, particularly a cosmetic product, comprising:
    - a body (10) of a receptacle (1),
    - a dispensing head (2) welded onto this body (10), one of the body (10) and the head (2) comprising a layer of a mixture of polypropylene and polyethylene, the other being constituted of polypropylene, characterized in that the polyethylene of the mixture of polypropylene and polyethylene is present to the extent of 20 to 50%.
  2. Device according to Claim 1, in which the polyethylene of the mixture of polypropylene and polyethylene is a low-density linear polyethylene.
  3. Device according to Claim 1 or 2, in which said body (10) of the receptacle is produced in the mixture of polypropylene and polyethylene.
  4. Device according to any one of the preceding claims, in which said body (10) of the receptacle has a wall thickness that is strictly less than 0.6 mm, particularly between 0.3 and 0.4 mm.
  5. Device according to any one of the preceding claims, in which said body (10) of the receptacle has an extension axis (X) and has a section, taken transversely to this axis, of polygonal, circular or oval shape.
  6. Device according to any one of the preceding claims, in which said body (10) of the receptacle is produced from a tubular sleeve obtained by extrusion through a die of corresponding shape.
  7. Device according to any one of the preceding claims, in which said dispensing head (2) is constituted of polypropylene.
  8. Device according to any one of the preceding claims, in which said dispensing head (2) includes a base (20) that comprises a dispensing opening (200), and a flap (21) mounted so as to move between a position in which said opening is closed off and a position in which said opening is clear.
  9. Device according to Claim 8, in which said base (20) and said flap (21) are in the form of a single component, said flap being connected to said base by a film hinge (24).
  10. Device according to any one of the preceding claims, in which said base (20) includes a peripheral skirt (23) that includes a rounded portion (230).
  11. Device according to any one of Claims 8 to 10, in which said base (20) includes reinforcing means (220) arranged on either side of said opening (200) and deigned to facilitate the assembly and use of the device, these reinforcing means including curved-profile ribs.
  12. Devise according to any one of the preceding claims, in which said dispensing head (2) is obtained by injection-moulding.
  13. Device according to any one of the preceding claims, in which said body (10) of the receptacle and said dispensing head (2) are welded to one another by ultrasonic welding.
  14. Devise according to any one of the preceding claims, which has a maximum weight when empty of 20 g.
EP10175611A 2009-09-10 2010-09-07 Device for packaging and dispensing a product Active EP2295336B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0956208A FR2949761B1 (en) 2009-09-10 2009-09-10 DEVICE FOR CONDITIONING AND DISPENSING A PRODUCT

Publications (2)

Publication Number Publication Date
EP2295336A1 EP2295336A1 (en) 2011-03-16
EP2295336B1 true EP2295336B1 (en) 2012-03-21

Family

ID=42112311

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EP10175611A Active EP2295336B1 (en) 2009-09-10 2010-09-07 Device for packaging and dispensing a product

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US (1) US10364069B2 (en)
EP (1) EP2295336B1 (en)
AT (1) ATE550263T1 (en)
ES (1) ES2384696T3 (en)
FR (1) FR2949761B1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3082496B1 (en) * 2013-12-19 2019-01-30 L'Oréal Package containing a cosmetic product
FR3020252B1 (en) 2014-04-24 2020-10-23 Albea Services POLYPROPYLENE TUBE
FR3119608B1 (en) * 2021-02-10 2023-04-28 Albea Services Tube head and tube including said tube head

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Also Published As

Publication number Publication date
FR2949761A1 (en) 2011-03-11
ES2384696T3 (en) 2012-07-11
US20110226792A1 (en) 2011-09-22
ATE550263T1 (en) 2012-04-15
US10364069B2 (en) 2019-07-30
FR2949761B1 (en) 2011-12-02
EP2295336A1 (en) 2011-03-16

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