EP2313319A2 - Method for conditioning a fluid product in a dispenser - Google Patents

Method for conditioning a fluid product in a dispenser

Info

Publication number
EP2313319A2
EP2313319A2 EP09772731A EP09772731A EP2313319A2 EP 2313319 A2 EP2313319 A2 EP 2313319A2 EP 09772731 A EP09772731 A EP 09772731A EP 09772731 A EP09772731 A EP 09772731A EP 2313319 A2 EP2313319 A2 EP 2313319A2
Authority
EP
European Patent Office
Prior art keywords
reservoir
inert gas
fluid
tank
air
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP09772731A
Other languages
German (de)
French (fr)
Other versions
EP2313319B1 (en
Inventor
Stéphane DESRUES
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.)
AirlesSystems SAS
Original Assignee
AirlesSystems SAS
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by AirlesSystems SAS filed Critical AirlesSystems SAS
Publication of EP2313319A2 publication Critical patent/EP2313319A2/en
Application granted granted Critical
Publication of EP2313319B1 publication Critical patent/EP2313319B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B31/00—Packaging articles or materials under special atmospheric or gaseous conditions; Adding propellants to aerosol containers
    • B65B31/02—Filling, closing, or filling and closing, containers or wrappers in chambers maintained under vacuum or superatmospheric pressure or containing a special atmosphere, e.g. of inert gas
    • B65B31/025—Filling, closing, or filling and closing, containers or wrappers in chambers maintained under vacuum or superatmospheric pressure or containing a special atmosphere, e.g. of inert gas specially adapted for rigid or semi-rigid containers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/0005—Components or details
    • B05B11/0097—Means for filling or refilling the sprayer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
    • B05B11/02—Membranes or pistons acting on the contents inside the container, e.g. follower pistons
    • B05B11/028—Pistons separating the content remaining in the container from the atmospheric air to compensate underpressure inside the container

Definitions

  • the present invention relates to a fluid product conditioning method in a fluid dispenser comprising a reservoir filled with fluid product defining an opening and a fluid dispenser member such as a pump or a valve.
  • the dispensing member is intended to be mounted in a sealed manner on the opening of the reservoir to thereby constitute the fluid dispenser.
  • This type of dispenser is frequently used in the fields of cosmetics, perfumery or pharmacy to condition various fluid products, such as perfumes, creams, gels, lotions, or powders. Some fluid products, especially in the fields of cosmetics and pharmacy, are likely to deteriorate when in contact with the air. For example, they may dry out or oxidize. In order to preserve the qualities of the fluid product, it is already known to condition the fluid under vacuum in the fluid dispenser. In the prior art, for example, documents EP-0 509 179 and
  • a vacuum chamber in which the reservoir and / or the dispensing member to be sealed to the reservoir are arranged.
  • the vacuum chamber contains only the reservoir, and fluid is injected into the reservoir, while a vacuum prevails inside the enclosure. This ensures that there will be no inclusion of air inside the fluid product. These air inclusions may especially occur with viscous fluids such as creams or gels.
  • the reservoir filled with fluid and the fluid dispenser member are disposed inside the vacuum chamber, however the dispensing member is not yet fixed. tight on the opening of the tank. After the vacuum is established inside the enclosure, sealing equipment acts on the dispensing member to mount it sealingly on the opening of the reservoir.
  • sealing equipment acts on the dispensing member to mount it sealingly on the opening of the reservoir. This ensures that the tank space that is not filled with fluid does not contain or little air.
  • the object of the present invention is to overcome the aforementioned disadvantage of the prior art by defining a new packaging method which can be implemented instead of or in addition to the vacuum filling and sealing processes of the art. prior.
  • the present invention provides a fluid product conditioning method in a fluid dispenser comprising a fluid reservoir defining an opening and a fluid dispenser member, such as a pump or a valve, for to be mounted in a sealed manner on the opening of the reservoir, an inert gas, such as nitrogen or argon, being present in the reservoir above the fluid during the sealed assembly of the dispenser member on the opening of the reservoir, such that the fluid product is in contact with the inert gas in the reservoir, characterized in that the step of sealing assembly of the dispensing member on the opening of the reservoir is carried out under vacuum , the inert gas is at least partially removed from the reservoir during this evacuation step, so that the reservoir is subjected to a vacuum of inert gas.
  • an inert gas such as nitrogen or argon
  • the air initially contained in the reservoir is removed, for example by suction, and then the inert gas is allowed to enter the reservoir instead of air.
  • the inert gas is allowed to enter the reservoir instead of air.
  • the fluid filling and / or sealing of the dispensing member on the reservoir can be carried out at atmospheric pressure with inert gas inside the reservoir above the fluid.
  • the packaging method of the invention may comprise a step of filling the reservoir with fluid, the air being replaced by the inert gas before and / or after this filling step.
  • the filling step is carried out under vacuum of air or inert gas, the tank being returned to atmospheric pressure by letting inert gas enter the tank.
  • the purge is performed with an inert gas at a pressure at least equal to atmospheric pressure, this to ensure that the fluid does not come into contact with the air.
  • a gas heavier than air such as argon, the inert gas can remain inside the tank above the fluid even at atmospheric pressure.
  • the tank thus filled with fluid and inert gas can pass to the next station where the dispensing member is sealingly mounted on the tank, this operation can be performed at atmospheric pressure.
  • a gas evacuation before assembly is preferable, especially when it is an "airless" tank, which should contain only fluid.
  • the spirit of the invention lies in the fact of performing at least some fluid product conditioning operations in an inert gas atmosphere at least at the reservoir, so that after conditioning, the fluid product is not in contact with air, but in contact with an inert gas that does not interact with the fluid and thus guarantees its perfect preservation.
  • FIG. 1 is a diagrammatic view in vertical section through a fluid product conditioning device capable of implementing the fluid product conditioning method according to the invention during a filling operation, and
  • FIGS. 1 and 2 are very similar in that they each comprise a vacuum chamber 4, an inlet of inert gas 43 connected to a source of inert gas G, an outlet 44 connected to a pump vacuum V to evacuate the enclosure 4, and a filling station 5 or a waterproof mounting station 6.
  • the enclosure 4 comprises a lower bucket 41 and an upper bell 42 or 42 ', reported one on the another tightly to create an interior space in which one can make a vacuum prevail.
  • the inlet of inert gas 43 and the outlet 44 are located at the bell 42, 42 '.
  • the bell 42 is equipped with a filling station 5 through which fluid product P can be injected into the interior of the bell.
  • the bell 42 ' is equipped with a sealed mounting station 6, which may for example be a crimping station or latching.
  • the packaging method and the packaging devices of the invention are intended to condition fluid product P inside a fluid dispenser comprising, inter alia, a fluid reservoir and a dispenser member, such as a pump or a valve, intended to be mounted sealingly on the reservoir.
  • the dispensing member can be of any kind as mentioned above, and is therefore not limited only to a pump or a valve.
  • the tank can also be of any kind, of constant or variable capacity, rigid or deformable nature, or further comprising a movable element to vary its capabilities.
  • the tank 1 is of the piston-follower type. More specifically, the reservoir 1 comprises a cylindrical sliding shaft 11 which is extended by forming a neck 12 defining internally an opening 13 communicating the interior of the barrel 11 with the outside.
  • the reservoir 1 also comprises a follower piston 14 which is engaged in leaktight sliding inside the barrel
  • the follower piston 14 is intended to move inside the barrel 11 as the fluid product is extracted.
  • the displacement of the follower piston 14 is generated by a depression created inside the reservoir. All this is quite conventional for this type of piston-follower tank.
  • the dispenser member 2 is only shown in FIG.
  • a fixing ring 3 is used which is only very schematically. It may be a crimping ring or a snap ring. It is even possible to use a screw ring. The essential thing is that the ring 3 carries a tight assembly of the pump 2 on the neck 12 of the tank.
  • FIG. 1 Reference will now be made more particularly to FIG. 1 to explain a first implementation of the fluid product conditioning method according to the invention during a filling operation of the reservoir.
  • the tank 1 is introduced inside the cup 41 of the chamber 4, and the bell 42 completes the chamber 4 to isolate the interior of the chamber 4 from the outside.
  • the interior of the tank 1, as well as the outside of the tank are subjected to the same pressure prevailing inside the chamber 4.
  • the filling station 5 extends inside the bell 42 so as to penetrate at least partially inside the neck 12 to inject fluid into the tank.
  • the air that is present inside the chamber 4 is evacuated through the outlet 44 connected to the vacuum pump V.
  • the vacuum pump V it there is a void of air inside the enclosure 4.
  • an inert gas is introduced inside the chamber 4 through the inlet 43 connected to the source of inert gas G. Since there is an air gap inside the enclosure 4, it is sufficient to let the inert gas enter the enclosure G through the inlet 43.
  • the filling operation can be performed under vacuum, but this is not an air vacuum, but a vacuum of inert gas.
  • the enclosure 4 filled with inert gas it can evacuate the enclosure by means of the vacuum pump V through the outlet 44.
  • the enclosure is then partially or completely emptied of its contents, which is the inert gas.
  • the filling operation can then begin under this vacuum of inert gas. Once the filling is complete, it is ensured that there is no inclusion or bubble of inert gas inside the fluid stored inside the tank.
  • the vacuum of inert gas can be broken and the chamber 4 can then be opened by moving the bucket 41 relative to the bell 42.
  • the tank is then at atmospheric pressure and / or ambient air, depending on whether or not a vacuum has been created in the chamber.
  • the opening of the chamber 4 causes a dispersion in the atmosphere of the inert gas.
  • the empty space of fluid inside the tank above the fluid can remain filled with inert gas. It then suffices during a subsequent sealed mounting step to mount the dispensing member 2 in the opening of the reservoir 12 sealingly.
  • the empty space of fluid inside the tank is then mainly filled with inert gas. It is thus possible to implement the present invention without producing a vacuum.
  • the opening of the enclosure 4 when the filling operation has been carried out under vacuum, the opening of the enclosure 4 generates an introduction of air inside the tank 1 above the fluid product. It is in this case preferable to perform a sealed mounting operation of the dispenser member on the reservoir under vacuum conditions.
  • inert gas may be introduced into the tank after the filling operation, which has been carried out at atmospheric pressure. It will be necessary to purge with an inert gas, which will ensure complete protection of the fluid filled.
  • the dispenser comprises a reservoir 1, like that of FIG. 1, as well as a dispensing member 2 arranged in an unsealed manner in the opening 12 of the reservoir.
  • the distributor also comprises a fixing ring 3 which is non-definitively mounted and therefore not sealed on the dispensing member 2.
  • the reservoir 1 is filled with fluid product P to a level close to the opening 12. However, there remains a space E which is empty of fluid and which is therefore initially filled with air. The enclosure is closed: however the space E is subjected to the same pressure as that prevailing in the rest of the enclosure outside the tank, since there is no sealing between the dispensing member 2 and the reservoir.
  • the air initially contained inside the chamber 4 is replaced by an inert gas.
  • This operation can be carried out in the same way as in the first implementation of FIG. 1.
  • the air of the enclosure can be evacuated through the outlet 44 using the vacuum pump V and then gas inert can be introduced inside the enclosure 4 emptied of its air through the inlet 43 connected to the source of gas G.
  • the air contained inside the enclosure 4 can be driven by the injection under pressure of inert gas inside the enclosure.
  • the air is flushed or vented through exit 44 directly open to the atmosphere.
  • the space E is filled with inert gas. It will be preferable to have the space E filled with inert gas before closing the enclosure, because it will be difficult to evacuate and fill it properly with the pump on the bottle, even mounted in a non-sealed manner. It is then possible to operate the sealed mounting station 6 for sealingly mounting the dispensing member 2 on the neck 12 with the aid of the ring 3. In the end, a complete sealed fluid dispenser is obtained. with space E filled with inert gas. This implementation is not applicable to "airless" dispensers without external air intake, which require a tank completely filled with fluid.
  • the implementations of the packaging method according to the invention of FIGS. 1 and 2 can be carried out successively or independently of one another.
  • the filling operation and / or the sealed mounting operation can be carried out under vacuum or not. If inert gas remains above the fluid within the tank 1 after the filling operation, the mounting operation can be carried out at atmospheric pressure. However, this will rarely be used, because the operation of the dispenser will not be optimal, especially for "airless" distributors without outside air intake. Finally, there is obtained a fluid dispenser whose reservoir is substantially completely filled with fluid, but which still contains a small portion or empty space of fluid which is filled with inert gas.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Vacuum Packaging (AREA)
  • Nozzles (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)

Abstract

A packaging method for packaging fluid (P) in a fluid dispenser comprising a fluid reservoir (1) defining an opening (13), and a fluid dispenser member (2), such as a pump or a valve, for mounting in leaktight manner on the opening (13) of the reservoir, an inert gas, such as nitrogen or argon, being present in the reservoir above the fluid (P) while the dispenser member (2) is being mounted in leaktight manner on the opening (13) of the reservoir, such that the fluid (P) is in contact with the inert gas in the reservoir (1); the method being characterized in that the step of mounting the dispenser member (2) in leaktight manner on the opening (13) of the reservoir (1) is performed under a vacuum, the inert gas is evacuated, at least in part, from the reservoir during this evacuation step, such that the reservoir is subjected to an inert-gas vacuum.

Description

Procédé de conditionnement de produit fluide dans un distributeur Method of packaging fluid product in a dispenser
La présente invention concerne un procédé de conditionnement de produit fluide dans un distributeur de produit fluide comprenant un réservoir rempli de produit fluide définissant une ouverture et un organe de distribution de produit fluide tel qu'une pompe ou une valve. L'organe de distribution est destiné à être monté de manière étanche sur l'ouverture du réservoir pour ainsi constituer le distributeur de produit fluide. Ce genre de distributeur est fréquemment utilisé dans les domaines de la cosmétique, de la parfumerie ou encore de la pharmacie pour conditionner divers produits fluides, tels que des parfums, des crèmes, des gels, des lotions, ou encore des poudres. Certains produits fluides, tout particulièrement dans les domaines de la cosmétique et de la pharmacie, sont susceptibles de se détériorer lorsqu'ils sont en contact avec l'air. Ils peuvent par exemple se dessécher ou s'oxyder. Afin de préserver les qualités du produit fluide, il est déjà connu de conditionner le produit fluide sous vide dans le distributeur de produit fluide. Dans l'art antérieur, on connaît par exemple les documents EP-O 509 179 etThe present invention relates to a fluid product conditioning method in a fluid dispenser comprising a reservoir filled with fluid product defining an opening and a fluid dispenser member such as a pump or a valve. The dispensing member is intended to be mounted in a sealed manner on the opening of the reservoir to thereby constitute the fluid dispenser. This type of dispenser is frequently used in the fields of cosmetics, perfumery or pharmacy to condition various fluid products, such as perfumes, creams, gels, lotions, or powders. Some fluid products, especially in the fields of cosmetics and pharmacy, are likely to deteriorate when in contact with the air. For example, they may dry out or oxidize. In order to preserve the qualities of the fluid product, it is already known to condition the fluid under vacuum in the fluid dispenser. In the prior art, for example, documents EP-0 509 179 and
EP-O 481 854. Ces documents décrivent des procédés de remplissage et de scellage sous vide. Pour cela, on utilise une enceinte à vide dans laquelle on dispose le réservoir et/ou l'organe de distribution à sceller sur le réservoir. Dans le procédé de remplissage, l'enceinte à vide ne contient que le réservoir, et du produit fluide est injecté dans le réservoir, alors qu'un vide règne à l'intérieur de l'enceinte. Ceci garantit qu'il n'y aura aucune inclusion d'air à l'intérieur du produit fluide. Ces inclusions d'air peuvent notamment se produire avec des produits fluides visqueux, comme des crèmes ou des gels. Dans le procédé de scellage sous vide, le réservoir rempli de produit fluide et l'organe de distribution de produit fluide sont disposés à l'intérieur de l'enceinte à vide, cependant l'organe de distribution n'est pas encore fixé de manière étanche sur l'ouverture du réservoir. Après que le vide est établi à l'intérieur de l'enceinte, un équipement de scellage agit sur l'organe de distribution pour le monter de manière étanche sur l'ouverture du réservoir. Après que le vide est établi à l'intérieur de l'enceinte, un équipement de scellage agit sur l'organe de distribution pour le monter de manière étanche sur l'ouverture du réservoir. On assure ainsi que l'espace du réservoir qui n'est pas rempli de produit fluide ne contient pas ou peu d'air. Un tel art antérieur est décrit par le document FR2704516, sur lequel le préambule de la revendication principale est basé.These documents describe vacuum filling and sealing processes. For this, a vacuum chamber is used in which the reservoir and / or the dispensing member to be sealed to the reservoir are arranged. In the filling process, the vacuum chamber contains only the reservoir, and fluid is injected into the reservoir, while a vacuum prevails inside the enclosure. This ensures that there will be no inclusion of air inside the fluid product. These air inclusions may especially occur with viscous fluids such as creams or gels. In the vacuum sealing process, the reservoir filled with fluid and the fluid dispenser member are disposed inside the vacuum chamber, however the dispensing member is not yet fixed. tight on the opening of the tank. After the vacuum is established inside the enclosure, sealing equipment acts on the dispensing member to mount it sealingly on the opening of the reservoir. After the vacuum is established inside the enclosure, sealing equipment acts on the dispensing member to mount it sealingly on the opening of the reservoir. This ensures that the tank space that is not filled with fluid does not contain or little air. Such prior art is described by the document FR2704516, on which the preamble of the main claim is based.
Il a toutefois été remarqué que le peu d'air qui reste à l'intérieur du réservoir au-dessus du produit fluide est encore capable de détériorer certains produits fluides. On peut donc en conclure qu'un remplissage ou un scellage sous vide n'est pas suffisant pour garantir une conservation parfaite du produit fluide stocké à l'intérieur du réservoir.It has been noticed, however, that the little air remaining inside the tank above the fluid is still capable of damaging some fluids. It can therefore be concluded that filling or sealing under vacuum is not sufficient to guarantee perfect preservation of the fluid product stored inside the tank.
La présente invention a pour but de remédier à l'inconvénient précité de l'art antérieur en définissant un nouveau procédé de conditionnement qui peut être mis en œuvre à la place ou en complément des procédés de remplissage et de scellage sous vide de l'art antérieur.The object of the present invention is to overcome the aforementioned disadvantage of the prior art by defining a new packaging method which can be implemented instead of or in addition to the vacuum filling and sealing processes of the art. prior.
Pour atteindre ce but, la présente invention propose un procédé de conditionnement de produit fluide dans un distributeur de produit fluide comprenant un réservoir de produit fluide définissant une ouverture et un organe de distribution de produit fluide, tel qu'une pompe ou une valve, destiné à être monté de manière étanche sur l'ouverture du réservoir,un gaz inerte, tel que de l'azote ou de l'argon, étant présent dans le réservoir au- dessus du produit fluide lors du montage étanche de l'organe de distribution sur l'ouverture du réservoir, de telle sorte que le produit fluide est en contact du gaz inerte dans le réservoir, caractérisé en ce que l'étape de montage étanche de l'organe de distribution sur l'ouverture du réservoir est réalisée sous vide, le gaz inerte est au moins partiellement évacué du réservoir lors de cette étape de mise sous vide, de sorte que le réservoir est soumis à un vide de gaz inerte. Il s'agit là de la forme de réalisation optimale, qui garantit qu'il n'y aura pas d'air à l'intérieur du réservoir. En pratique, l'air initialement contenu dans le réservoir est évacué, puis remplacé par un gaz inerte, et dans un second temps, le gaz inerte est évacué du réservoir et l'organe de distribution est monté de manière étanche sur l'ouverture du réservoir. On garantit ainsi qu'il n'y a pas d'air et très peu de gaz inerte à l'intérieur du réservoir. La conservation du produit fluide est alors optimale. Sous le terme de « gaz inerte », il faut entendre tout gaz qui ne réagit pas avec le produit fluide de manière à le détériorer. L'azote et l'argon sont les gaz courants qui sont connus pour leur inertie chimique. Ainsi, l'air qui est normalement contenu dans le réservoir, en quantité normale ou en petite quantité suite à un procédé de conditionnement sous vide, est remplacé par un gaz inerte. Une conservation parfaite du produit fluide est de ce fait garantie.To achieve this object, the present invention provides a fluid product conditioning method in a fluid dispenser comprising a fluid reservoir defining an opening and a fluid dispenser member, such as a pump or a valve, for to be mounted in a sealed manner on the opening of the reservoir, an inert gas, such as nitrogen or argon, being present in the reservoir above the fluid during the sealed assembly of the dispenser member on the opening of the reservoir, such that the fluid product is in contact with the inert gas in the reservoir, characterized in that the step of sealing assembly of the dispensing member on the opening of the reservoir is carried out under vacuum , the inert gas is at least partially removed from the reservoir during this evacuation step, so that the reservoir is subjected to a vacuum of inert gas. This is the optimal embodiment, which ensures that there will be no air inside the tank. In practice, the air initially contained in the reservoir is evacuated, then replaced by an inert gas, and in a second step, the inert gas is removed from the reservoir and the dispensing member is sealingly mounted on the opening of the tank. We thus ensures that there is no air and very little inert gas inside the tank. The preservation of the fluid product is then optimal. Under the term "inert gas" is meant any gas that does not react with the fluid to deteriorate it. Nitrogen and argon are the common gases that are known for their chemical inertness. Thus, the air that is normally contained in the tank, in a normal amount or in a small amount as a result of a vacuum conditioning process, is replaced by an inert gas. Perfect preservation of the fluid product is therefore guaranteed.
Selon une forme de réalisation, l'air initialement contenu dans le réservoir est chassé, par exemple par aspiration, puis on laisse pénétrer le gaz inerte dans le réservoir à la place de l'air. En variante, il est possible de chasser l'air du réservoir avec le gaz inerte. Il n'est pas nécessaire dans le cadre de l'invention de réaliser un vide au moment où l'organe de distribution est monté de manière étanche sur l'ouverture du réservoir. Ainsi, le remplissage de produit fluide et/ou le scellage de l'organe de distribution sur le réservoir peuvent être réalisés à la pression atmosphérique avec du gaz inerte à l'intérieur du réservoir au-dessus du produit fluide.According to one embodiment, the air initially contained in the reservoir is removed, for example by suction, and then the inert gas is allowed to enter the reservoir instead of air. Alternatively, it is possible to expel air from the tank with the inert gas. It is not necessary in the context of the invention to provide a vacuum when the dispenser member is sealingly mounted on the opening of the reservoir. Thus, the fluid filling and / or sealing of the dispensing member on the reservoir can be carried out at atmospheric pressure with inert gas inside the reservoir above the fluid.
Toutefois, selon une forme de réalisation avantageuse, le procédé de conditionnement de l'invention peut comprendre une étape de remplissage du réservoir avec du produit fluide, l'air étant remplacé par le gaz inerte avant et/ou après cette étape de remplissage. Avantageusement, l'étape de remplissage est réalisée sous vide d'air ou de gaz inerte, le réservoir étant remis à la pression atmosphérique en laissant pénétrer du gaz inerte dans le réservoir. La purge est réalisée avec un gaz inerte à une pression au minimum égale à la pression atmosphérique, ceci permettant d'assurer que le produit fluide ne vient pas au contact de l'air. En utilisant par exemple un gaz plus lourd que l'air, tel que l'argon, le gaz inerte peut rester à l'intérieur du réservoir au-dessus du produit fluide même à la pression atmosphérique. Le réservoir ainsi rempli de produit fluide et de gaz inerte peut passer à la station suivante où l'organe de distribution est monté de manière étanche sur le réservoir, cette opération pouvant être réalisée à la pression atmosphérique. Bien entendu, une évacuation du gaz avant montage est préférable, surtout lorsqu'il s'agit d'un réservoir « airless », qui ne doit contenir que du produit fluide.However, according to an advantageous embodiment, the packaging method of the invention may comprise a step of filling the reservoir with fluid, the air being replaced by the inert gas before and / or after this filling step. Advantageously, the filling step is carried out under vacuum of air or inert gas, the tank being returned to atmospheric pressure by letting inert gas enter the tank. The purge is performed with an inert gas at a pressure at least equal to atmospheric pressure, this to ensure that the fluid does not come into contact with the air. By using for example a gas heavier than air, such as argon, the inert gas can remain inside the tank above the fluid even at atmospheric pressure. The tank thus filled with fluid and inert gas can pass to the next station where the dispensing member is sealingly mounted on the tank, this operation can be performed at atmospheric pressure. Of course, a gas evacuation before assembly is preferable, especially when it is an "airless" tank, which should contain only fluid.
L'esprit de l'invention réside dans le fait de réaliser au moins certaines opérations de conditionnement de produit fluide dans une atmosphère de gaz inerte au moins au niveau du réservoir, de sorte qu'après conditionnement, le produit fluide n'est pas en contact de l'air, mais en contact d'un gaz inerte qui n'interagit pas avec le produit fluide et garantit ainsi sa conservation parfaite.The spirit of the invention lies in the fact of performing at least some fluid product conditioning operations in an inert gas atmosphere at least at the reservoir, so that after conditioning, the fluid product is not in contact with air, but in contact with an inert gas that does not interact with the fluid and thus guarantees its perfect preservation.
L'invention sera maintenant plus amplement décrite en référence aux dessins joints donnant à titre d'exemples non limitatifs deux modes de mise en œuvre de la présente invention.The invention will now be further described with reference to the accompanying drawings giving by way of non-limiting examples two embodiments of the present invention.
Sur les figures :In the figures:
- la figure 1 est une vue schématique en coupe verticale à travers un dispositif de conditionnement de produit fluide apte à mettre en œuvre le procédé de conditionnement de produit fluide selon l'invention au cours d'une opération de remplissage, etFIG. 1 is a diagrammatic view in vertical section through a fluid product conditioning device capable of implementing the fluid product conditioning method according to the invention during a filling operation, and
- la figure 2 est une vue similaire à celle de la figure 1 au cours d'une opération de montage ou de scellage étanche de l'organe de distribution sur le réservoir rempli de produit fluide. La présente invention consiste en un procédé de conditionnement qui est mis en œuvre grâce à un dispositif de conditionnement approprié dans le but de réaliser un distributeur de produit fluide qui incorpore les résultats du procédé de conditionnement. Les deux dispositifs de conditionnement représentés sur les figures 1 et 2 sont très similaires en ce qu'ils comprennent chacun une enceinte à vide 4, une arrivée de gaz inerte 43 reliée à une source de gaz inerte G, une sortie 44 reliée à une pompe à vide V pour évacuer l'enceinte 4, ainsi qu'un poste de remplissage 5 ou un poste de montage étanche 6. L'enceinte 4 comprend un godet inférieur 41 et une cloche supérieure 42 ou 42', rapportés l'un sur l'autre de manière étanche pour créer un espace intérieur dans lequel on peut faire régner un vide.- Figure 2 is a view similar to that of Figure 1 during a mounting operation or sealed sealing of the dispenser member on the reservoir filled with fluid. The present invention consists of a packaging process which is carried out by means of a suitable packaging device for the purpose of producing a fluid dispenser which incorporates the results of the packaging process. The two conditioning devices shown in FIGS. 1 and 2 are very similar in that they each comprise a vacuum chamber 4, an inlet of inert gas 43 connected to a source of inert gas G, an outlet 44 connected to a pump vacuum V to evacuate the enclosure 4, and a filling station 5 or a waterproof mounting station 6. The enclosure 4 comprises a lower bucket 41 and an upper bell 42 or 42 ', reported one on the another tightly to create an interior space in which one can make a vacuum prevail.
L'arrivée de gaz inerte 43 et la sortie 44 sont situées au niveau de la cloche 42, 42'. Dans le premier mode de réalisation de la figure 1 , la cloche 42 est équipée d'un poste de remplissage 5 par lequel du produit fluide P peut être injecté à l'intérieur de la cloche. Dans le second mode de réalisation de la figure 2, la cloche 42' est équipée d'un poste de montage étanche 6, qui peut par exemple être un poste de sertissage ou d'encliquetage. Le procédé de conditionnement et les dispositifs de conditionnement de l'invention sont destinés à conditionner du produit fluide P à l'intérieur d'un distributeur de produit fluide comprenant, entre autre, un réservoir de produit fluide et un organe de distribution, tel qu'une pompe ou une valve, destiné à être monté de manière étanche sur le réservoir. L'organe de distribution peut être de toute nature comme susmentionné, et ne se limite par conséquent pas seulement à une pompe ou une valve. Quant au réservoir, il peut également être de toute nature, de capacité constante ou variable, de nature rigide ou déformable, ou comprenant encore un élément mobile pour faire varier ses capacités. Compte tenu du but de la présente invention, à savoir une parfaite conservation du produit fluide à l'intérieur du réservoir, il est bien entendu préférable que la quantité de produit fluide extraite du réservoir ne soit pas remplacée par un volume équivalent d'air extérieur. De ce fait, il est préférable d'utiliser des réservoirs à capacité variable comme des réservoirs déformables du type poche souple, ou des réservoirs à paroi mobile, du type réservoir à piston-suiveur. Dans les illustrations des figures 1 et 2, le réservoir 1 est du type à piston-suiveur. Plus précisément, le réservoir 1 comprend un fût de coulissement cylindrique 11 qui se prolonge en formant un col 12 définissant intérieurement une ouverture 13 faisant communiquer l'intérieur du fût 11 avec l'extérieur. Le réservoir 1 comprend également un piston-suiveur 14 qui est engagé à coulissement étanche à l'intérieur du fûtThe inlet of inert gas 43 and the outlet 44 are located at the bell 42, 42 '. In the first embodiment of FIG. 1, the bell 42 is equipped with a filling station 5 through which fluid product P can be injected into the interior of the bell. In the second embodiment of Figure 2, the bell 42 'is equipped with a sealed mounting station 6, which may for example be a crimping station or latching. The packaging method and the packaging devices of the invention are intended to condition fluid product P inside a fluid dispenser comprising, inter alia, a fluid reservoir and a dispenser member, such as a pump or a valve, intended to be mounted sealingly on the reservoir. The dispensing member can be of any kind as mentioned above, and is therefore not limited only to a pump or a valve. As for the tank, it can also be of any kind, of constant or variable capacity, rigid or deformable nature, or further comprising a movable element to vary its capabilities. Given the purpose of the present invention, namely a perfect preservation of the fluid within the tank, it is of course preferable that the amount of fluid extracted from the tank is not replaced by an equivalent volume of outside air . Therefore, it is preferable to use tanks with variable capacity such as deformable tanks of the flexible pouch type, or tanks with movable wall, of the piston-follower tank type. In the illustrations of Figures 1 and 2, the tank 1 is of the piston-follower type. More specifically, the reservoir 1 comprises a cylindrical sliding shaft 11 which is extended by forming a neck 12 defining internally an opening 13 communicating the interior of the barrel 11 with the outside. The reservoir 1 also comprises a follower piston 14 which is engaged in leaktight sliding inside the barrel
11. Le piston-suiveur 14 est destiné à se déplacer à l'intérieur du fût 11 à mesure que du produit fluide en est extrait. Le déplacement du piston-suiveur 14 est généré par une dépression créée à l'intérieur du réservoir. Tout ceci est tout à fait classique pour ce type de réservoir à piston-suiveur. L'organe de distribution 2 est uniquement représenté sur la figure 2.11. The follower piston 14 is intended to move inside the barrel 11 as the fluid product is extracted. The displacement of the follower piston 14 is generated by a depression created inside the reservoir. All this is quite conventional for this type of piston-follower tank. The dispenser member 2 is only shown in FIG.
Pour sa fixation ou son montage étanche sur le col 12 du réservoir 1 , on utilise une bague de fixation 3 qui n'est représenté que très schématiquement. Il peut s'agir d'une bague de sertissage ou encore d'une bague d'encliquetage. Il est même possible d'utiliser une bague à visser. L'essentiel est que la bague 3 réalise un montage étanche de la pompe 2 sur le col 12 du réservoir. On se référera maintenant plus particulièrement à la figure 1 pour expliquer une première mise en œuvre du procédé de conditionnement de produit fluide selon l'invention lors d'une opération de remplissage du réservoir. Dans ce cas, le réservoir 1 est introduit à l'intérieur du godet 41 de l'enceinte 4, et la cloche 42 vient compléter l'enceinte 4 pour isoler l'intérieur de l'enceinte 4 de l'extérieur. Ainsi, l'intérieur du réservoir 1 , ainsi que l'extérieur du réservoir, sont soumis à la même pression régnant à l'intérieur de l'enceinte 4. Le poste de remplissage 5 s'étend à l'intérieur de la cloche 42 de manière à pénétrer au moins partiellement à l'intérieur du col 12 pour pouvoir injecter du produit fluide à l'intérieur du réservoir. Selon un aspect de l'invention, avant de commencer l'opération de remplissage, on évacue l'air qui est présent à l'intérieur de l'enceinte 4 à travers la sortie 44 reliée à la pompe à vide V. Ainsi, il règne à l'intérieur de l'enceinte 4 un vide d'air. En fonction de la profondeur du vide, il reste plus ou moins d'air à l'intérieur de l'enceinte 4 : on peut faire un vide qui tend vers 100%. Ensuite, un gaz inerte est introduit à l'intérieur de l'enceinte 4 à travers l'arrivée 43 reliée à la source de gaz inerte G. Etant donné qu'il règne un vide d'air à l'intérieur de l'enceinte 4, il suffit de laisser pénétrer le gaz inerte à l'intérieur de l'enceinte G à travers l'arrivée 43. En variante, il est également possible de chasser l'air initialement contenu dans l'enceinte 4 à travers la sortie 44 directement vers l'atmosphère sans être relié à la pompeFor fixing or sealing on the neck 12 of the tank 1, a fixing ring 3 is used which is only very schematically. It may be a crimping ring or a snap ring. It is even possible to use a screw ring. The essential thing is that the ring 3 carries a tight assembly of the pump 2 on the neck 12 of the tank. Reference will now be made more particularly to FIG. 1 to explain a first implementation of the fluid product conditioning method according to the invention during a filling operation of the reservoir. In this case, the tank 1 is introduced inside the cup 41 of the chamber 4, and the bell 42 completes the chamber 4 to isolate the interior of the chamber 4 from the outside. Thus, the interior of the tank 1, as well as the outside of the tank, are subjected to the same pressure prevailing inside the chamber 4. The filling station 5 extends inside the bell 42 so as to penetrate at least partially inside the neck 12 to inject fluid into the tank. According to one aspect of the invention, before starting the filling operation, the air that is present inside the chamber 4 is evacuated through the outlet 44 connected to the vacuum pump V. Thus, it there is a void of air inside the enclosure 4. Depending on the depth of the vacuum, there is more or less air inside the chamber 4: we can make a vacuum that tends to 100%. Then, an inert gas is introduced inside the chamber 4 through the inlet 43 connected to the source of inert gas G. Since there is an air gap inside the enclosure 4, it is sufficient to let the inert gas enter the enclosure G through the inlet 43. Alternatively, it is also possible to drive the air initially contained in the chamber 4 through the outlet 44 directly to the atmosphere without being connected to the pump
V en injectant sous pression du gaz inerte dans l'enceinte à travers l'arrivée 43. Cette technique a pour avantage de réaliser le remplacement de l'air avec du gaz inerte en une seule étape, et non pas en deux étapes, comme c'est le cas si l'on vide d'abord l'enceinte 4 puis on la remplit avec du gaz inerte. Bien entendu, dans les deux cas, l'enceinte 4 est remplie de gaz inerte, et non plus d'air. En pratique, il est impossible d'éliminer la totalité de l'air de l'enceinte 4, mais sa proportion par rapport au gaz est réduite au minimum. Ainsi, lorsque l'enceinte 4 est remplie de gaz inerte, l'opération de remplissage de produit fluide à l'aide du poste 5 peut commencer. Il est ainsi garanti qu'il n'y a aucune inclusion d'air à l'intérieur du produit fluide contenu dans le réservoir. Au pire, il y a des inclusions de gaz, mais celui-ci n'est pas néfaste pour le produit fluide.V by injecting pressurized inert gas into the chamber through the inlet 43. This technique has the advantage of making the replacement of air with inert gas in a single step, and not in two stages, such as c This is the case if the enclosure 4 is first emptied and then filled with inert gas. Of course, in both cases, the chamber 4 is filled with inert gas, and no longer air. In practice, it is impossible to eliminate all the air from the enclosure 4, but its proportion relative to the gas is reduced to minimum. Thus, when the chamber 4 is filled with inert gas, the fluid filling operation using the station 5 can begin. It is thus guaranteed that there is no inclusion of air inside the fluid contained in the reservoir. At worst, there are inclusions of gas, but it is not harmful to the fluid product.
Selon un autre aspect de l'invention, l'opération de remplissage peut être réalisée sous vide, mais il s'agit là non pas d'un vide d'air, mais un vide de gaz inerte. En effet, une fois l'enceinte 4 remplie de gaz inerte, on peut évacuer l'enceinte au moyen de la pompe à vide V à travers la sortie 44. L'enceinte est alors partiellement ou totalement vidée de son contenu, qui est du gaz inerte. L'opération de remplissage peut alors commencer sous ce vide de gaz inerte. Une fois le remplissage terminé, il est assuré qu'il n'y a aucune inclusion ou bulle de gaz inerte à l'intérieur du produit fluide stocké à l'intérieur du réservoir. Le vide de gaz inerte peut être cassé et l'enceinte 4 peut alors être ouverte en déplaçant le godet 41 par rapport à la cloche 42.According to another aspect of the invention, the filling operation can be performed under vacuum, but this is not an air vacuum, but a vacuum of inert gas. Indeed, once the enclosure 4 filled with inert gas, it can evacuate the enclosure by means of the vacuum pump V through the outlet 44. The enclosure is then partially or completely emptied of its contents, which is the inert gas. The filling operation can then begin under this vacuum of inert gas. Once the filling is complete, it is ensured that there is no inclusion or bubble of inert gas inside the fluid stored inside the tank. The vacuum of inert gas can be broken and the chamber 4 can then be opened by moving the bucket 41 relative to the bell 42.
Le réservoir est alors à la pression atmosphérique et/ou à l'air ambiant, en fonction qu'un vide ou non a été réalisé dans l'enceinte. Dans le cas où le remplissage du réservoir a été réalisé dans une atmosphère de gaz inerte sensiblement à la pression atmosphérique, l'ouverture de l'enceinte 4 engendre une dispersion dans l'atmosphère du gaz inerte. Toutefois, en choisissant un gaz inerte sensiblement lourd, comme c'est le cas de l'argon, l'espace vide de produit fluide à l'intérieur du réservoir au-dessus du produit fluide peut rester rempli de gaz inerte. Il suffit alors au cours d'une étape de montage étanche ultérieure de monter l'organe de distribution 2 dans l'ouverture du réservoir 12 de manière étanche. L'espace resté vide de produit fluide à l'intérieur du réservoir est alors principalement rempli de gaz inerte. Il est ainsi possible de mettre en œuvre la présente invention sans réaliser de vide.The tank is then at atmospheric pressure and / or ambient air, depending on whether or not a vacuum has been created in the chamber. In the case where the filling of the reservoir has been carried out in an atmosphere of inert gas substantially at atmospheric pressure, the opening of the chamber 4 causes a dispersion in the atmosphere of the inert gas. However, by choosing a substantially heavy inert gas, as is the case with argon, the empty space of fluid inside the tank above the fluid can remain filled with inert gas. It then suffices during a subsequent sealed mounting step to mount the dispensing member 2 in the opening of the reservoir 12 sealingly. The empty space of fluid inside the tank is then mainly filled with inert gas. It is thus possible to implement the present invention without producing a vacuum.
En variante, lorsque l'opération de remplissage a été réalisée sous vide, l'ouverture de l'enceinte 4 engendre une introduction d'air à l'intérieur du réservoir 1 au-dessus du produit fluide. Il est dans ce cas préférable d'effectuer une opération de montage étanche de l'organe de distribution sur le réservoir dans des conditions de vide.In a variant, when the filling operation has been carried out under vacuum, the opening of the enclosure 4 generates an introduction of air inside the tank 1 above the fluid product. It is in this case preferable to perform a sealed mounting operation of the dispenser member on the reservoir under vacuum conditions.
En variante préférentielle, du gaz inerte peut être introduit dans le réservoir après l'opération de remplissage, qui a été effectuée à la pression atmosphérique. Il faudra purger avec un gaz inerte, ce qui assurera une protection complète du produit fluide rempli.In a preferred variant, inert gas may be introduced into the tank after the filling operation, which has been carried out at atmospheric pressure. It will be necessary to purge with an inert gas, which will ensure complete protection of the fluid filled.
On se référera ainsi maintenant à la figure 2 où le procédé de conditionnement selon l'invention a été mis en œuvre lors d'une opération de montage étanche de l'organe de distribution sur l'ouverture du réservoir. Un distributeur de produit fluide complet est introduit à l'intérieur de l'enceinte 4.Referring now to Figure 2 where the packaging process according to the invention has been implemented during a sealed mounting operation of the dispensing member on the opening of the reservoir. A complete fluid product dispenser is introduced inside the chamber 4.
Le distributeur comprend un réservoir 1 , comme celui de la figure 1 , ainsi qu'un organe de distribution 2 disposé de manière non étanche dans l'ouverture 12 du réservoir. Le distributeur comprend également une bague de fixation 3 qui est montée de manière non définitive et par conséquent non étanche sur l'organe de distribution 2. Le réservoir 1 est rempli de produit fluide P jusqu'à un niveau proche de l'ouverture 12. Il subsiste cependant un espace E qui est vide de produit fluide et qui est par conséquent initialement rempli d'air. L'enceinte est fermée : toutefois l'espace E est soumis à la même pression que celle régnant dans le reste de l'enceinte à l'extérieur du réservoir, étant donné qu'il n'y a pas d'étanchéité entre l'organe de distribution 2 et le réservoir.The dispenser comprises a reservoir 1, like that of FIG. 1, as well as a dispensing member 2 arranged in an unsealed manner in the opening 12 of the reservoir. The distributor also comprises a fixing ring 3 which is non-definitively mounted and therefore not sealed on the dispensing member 2. The reservoir 1 is filled with fluid product P to a level close to the opening 12. However, there remains a space E which is empty of fluid and which is therefore initially filled with air. The enclosure is closed: however the space E is subjected to the same pressure as that prevailing in the rest of the enclosure outside the tank, since there is no sealing between the dispensing member 2 and the reservoir.
Selon un aspect de l'invention, l'air initialement contenu à l'intérieur de l'enceinte 4 est remplacé par un gaz inerte. Cette opération peut être effectuée de la même manière que dans la première mise en œuvre de la figure 1. L'air de l'enceinte peut être évacué à travers la sortie 44 à l'aide de la pompe à vide V, puis du gaz inerte peut être introduit à l'intérieur de l'enceinte 4 vidée de son air à travers l'arrivée 43 reliée à la source de gaz G. En variante, l'air contenu à l'intérieur de l'enceinte 4 peut être chassé par l'injection sous pression de gaz inerte à l'intérieur de l'enceinte. L'air est chassé ou évacué à travers la sortie 44 directement ouverte à l'atmosphère.According to one aspect of the invention, the air initially contained inside the chamber 4 is replaced by an inert gas. This operation can be carried out in the same way as in the first implementation of FIG. 1. The air of the enclosure can be evacuated through the outlet 44 using the vacuum pump V and then gas inert can be introduced inside the enclosure 4 emptied of its air through the inlet 43 connected to the source of gas G. Alternatively, the air contained inside the enclosure 4 can be driven by the injection under pressure of inert gas inside the enclosure. The air is flushed or vented through exit 44 directly open to the atmosphere.
Dans les deux cas, on se retrouve avec une enceinte 4 remplie de gaz inerte. Par conséquent, l'espace E est rempli de gaz inerte. II sera préférable d'avoir l'espace E rempli de gaz inerte avant de fermer l'enceinte, car il sera difficile de l'évacuer et de la remplir correctement avec la pompe sur le flacon, même montée de façon non étanche. II est alors possible de mettre en fonctionnement le poste de montage étanche 6 pour monter de manière étanche l'organe de distribution 2 sur le col 12 à l'aide de la bague 3. Au final, on obtient un distributeur de produit fluide étanche complet avec l'espace E rempli de gaz inerte. Cette mise en œuvre n'est pas applicable aux distributeurs « airless » sans reprise d'air extérieur, qui nécessitent un réservoir entièrement rempli de produit fluide.In both cases, we end up with an enclosure 4 filled with inert gas. Therefore, the space E is filled with inert gas. It will be preferable to have the space E filled with inert gas before closing the enclosure, because it will be difficult to evacuate and fill it properly with the pump on the bottle, even mounted in a non-sealed manner. It is then possible to operate the sealed mounting station 6 for sealingly mounting the dispensing member 2 on the neck 12 with the aid of the ring 3. In the end, a complete sealed fluid dispenser is obtained. with space E filled with inert gas. This implementation is not applicable to "airless" dispensers without external air intake, which require a tank completely filled with fluid.
En variante préférentielle, il est possible à nouveau d'évacuer l'enceinte 4 à travers la sortie 44 au moyen de la pompe à vide V, de manière à faire régner un vide de gaz inerte à l'intérieur de l'enceinte 4. Bien entendu, ce vide de gaz inerte s'étend jusqu'au niveau de l'espace E. Le poste de montage étanche 6 peut alors être mis en œuvre pour réaliser le montage étanche de l'organe de distribution 2 sur le col 12 du réservoir à l'aide de la bague 3. L'espace E, qui est également soumis au vide de gaz inerte, ne contient que très peu de gaz. En remettant l'enceinte 4 à la pression atmosphérique, l'espace E va considérablement se réduire en raison de la remontée du piston-suiveur 4 à l'intérieur du fût 11. Toutefois, il subsistera tout de même un petit espace E qui est rempli de gaz inerte, et non pas d'air. Cette mise en œuvre est particulièrement appropriée aux distributeurs « airless » sans reprise d'air extérieur.In a preferred variant, it is again possible to evacuate the enclosure 4 through the outlet 44 by means of the vacuum pump V, so as to make a vacuum of inert gas prevail inside the enclosure 4. Of course, this vacuum of inert gas extends to the level of the space E. The sealed mounting station 6 can then be implemented to achieve the sealed assembly of the dispensing member 2 on the neck 12 of the The space E, which is also subjected to the vacuum of inert gas, contains very little gas. By putting the chamber 4 back to atmospheric pressure, the space E will considerably reduce due to the raising of the follower piston 4 inside the shaft 11. However, there will still be a small gap E which is filled with inert gas, not air. This implementation is particularly suitable for "airless" distributors without outdoor air intake.
Les mises en œuvre du procédé de conditionnement selon l'invention des figures 1 et 2 peuvent être réalisées successivement ou indépendamment l'une de l'autre. L'opération de remplissage et/ou l'opération de montage étanche peuvent être réalisée(s) sous vide ou non. Si du gaz inerte reste au-dessus du produit fluide à l'intérieur du réservoir 1 après l'opération de remplissage, l'opération de montage peut être réalisée à la pression atmosphérique. Toutefois, ceci sera rarement utilisé, car le fonctionnement du distributeur ne sera pas optimal, notamment pour les distributeurs « airless » sans reprise d'air extérieur. Au final, on obtient un distributeur de produit fluide dont le réservoir est pratiquement entièrement rempli de produit fluide, mais qui contient cependant encore une petite partie ou espace vide de produit fluide qui est rempli(e) de gaz inerte. The implementations of the packaging method according to the invention of FIGS. 1 and 2 can be carried out successively or independently of one another. The filling operation and / or the sealed mounting operation can be carried out under vacuum or not. If inert gas remains above the fluid within the tank 1 after the filling operation, the mounting operation can be carried out at atmospheric pressure. However, this will rarely be used, because the operation of the dispenser will not be optimal, especially for "airless" distributors without outside air intake. Finally, there is obtained a fluid dispenser whose reservoir is substantially completely filled with fluid, but which still contains a small portion or empty space of fluid which is filled with inert gas.

Claims

Revendications claims
1.- Procédé de conditionnement de produit fluide (P) dans un distributeur de produit fluide comprenant un réservoir de produit fluide1.- Method for packaging fluid product (P) in a fluid dispenser comprising a fluid reservoir
(1 ) définissant une ouverture (13) et un organe de distribution de produit fluide (2), tel qu'une pompe ou une valve, destiné à être monté de manière étanche sur l'ouverture (13) du réservoir, un gaz inerte, tel que de l'azote ou de l'argon, étant présent dans le réservoir au-dessus du produit fluide (P) lors du montage étanche de l'organe de distribution(1) defining an opening (13) and a fluid dispenser member (2), such as a pump or a valve, for sealingly mounting on the opening (13) of the reservoir, an inert gas , such that nitrogen or argon is present in the tank above the fluid product (P) during the tight fitting of the dispenser member
(2) sur l'ouverture (13) du réservoir, de telle sorte que le produit fluide (P) est en contact du gaz inerte dans le réservoir (1 ), caractérisé en ce que l'étape de montage étanche de l'organe de distribution (2) sur l'ouverture (13) du réservoir (1 ) est réalisée sous vide, le gaz inerte est au moins partiellement évacué du réservoir lors de cette étape de mise sous vide, de sorte que le réservoir est soumis à un vide de gaz inerte.(2) on the opening (13) of the reservoir, such that the fluid product (P) is in contact with the inert gas in the reservoir (1), characterized in that the step of tight fitting of the organ of distribution (2) on the opening (13) of the reservoir (1) is carried out under vacuum, the inert gas is at least partially removed from the reservoir during this evacuation step, so that the reservoir is subjected to a empty of inert gas.
2.- Procédé de conditionnement selon la revendication 1 , comprenant de chasser l'air du réservoir (1 ), puis de laisser pénétrer le gaz inerte dans le réservoir.2. A method of packaging according to claim 1, comprising removing the air from the tank (1), then allowing the inert gas to enter the tank.
3.- Procédé de conditionnement selon la revendication 1 , comprenant de chasser l'air du réservoir (1 ) avec le gaz inerte.3. A packaging method according to claim 1, comprising removing the air from the tank (1) with the inert gas.
4.- Procédé de conditionnement selon l'une quelconque des revendications précédentes, comprenant une étape de remplissage du réservoir (1 ) avec du produit fluide, l'air étant remplacé par le gaz inerte avant cette étape de remplissage.4. A packaging method according to any one of the preceding claims, comprising a step of filling the reservoir (1) with fluid, the air being replaced by the inert gas before this filling step.
5.- Procédé de conditionnement selon l'une quelconque des revendications précédentes, comprenant une étape de remplissage du réservoir (1 ) avec du produit fluide, l'air étant remplacé par le gaz inerte après cette étape de remplissage.5. A packaging method according to any one of the preceding claims, comprising a step of filling the reservoir (1) with fluid, the air being replaced by the inert gas after this filling step.
6.- Procédé de conditionnement selon la revendication 5, dans lequel l'étape de remplissage est réalisée sous vide d'air ou de gaz inerte, le réservoir (1 ) étant remis à la pression atmosphérique en laissant pénétrer du gaz inerte dans le réservoir. 6. A method of packaging according to claim 5, wherein the filling step is carried out under vacuum of air or inert gas, the tank (1) being returned to atmospheric pressure by letting inert gas enter the tank .
EP09772731A 2008-07-01 2009-06-30 Method for conditioning a fluid product in a dispenser Not-in-force EP2313319B1 (en)

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FR0854438A FR2933380B1 (en) 2008-07-01 2008-07-01 METHOD FOR CONDITIONING FLUID PRODUCT IN A DISPENSER
PCT/FR2009/051262 WO2010001049A2 (en) 2008-07-01 2009-06-30 Method for conditioning a fluid product in a dispenser

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EP2313319B1 EP2313319B1 (en) 2011-12-07

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ES2378336T3 (en) 2012-04-11
BRPI0913917A2 (en) 2015-10-20
WO2010001049A2 (en) 2010-01-07
CN102076566A (en) 2011-05-25
US20110146207A1 (en) 2011-06-23
WO2010001049A3 (en) 2010-02-25
FR2933380A1 (en) 2010-01-08
US8726615B2 (en) 2014-05-20
CN102076566B (en) 2012-12-05
EP2313319B1 (en) 2011-12-07
FR2933380B1 (en) 2013-01-18
ATE536309T1 (en) 2011-12-15

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