WO2018002521A1

WO2018002521A1 - System for packaging and dispensing a fluid product, in particular a fluid cosmetic product

Info

Publication number: WO2018002521A1
Application number: PCT/FR2017/051728
Authority: WO
Inventors: Soukaï DIOUF
Original assignee: L'oreal
Priority date: 2016-06-30
Filing date: 2017-06-28
Publication date: 2018-01-04
Also published as: FR3053222A1

Abstract

The invention relates to a system (1) comprising a reservoir (2) that delimits a primary chamber (C1) for a first product (P1), and a closure system (3) for the reservoir (2), comprising a withdrawing and dispensing device (6) that has an elongate element (60) that can be inserted into the reservoir (2) and removed from the reservoir in order to allow the product contained in the reservoir to be dispensed, the closure member (3) and the reservoir (2) together defining a secondary chamber (C2) for a second product (P2). According to the invention, the reservoir (2) incorporates a sheath (24) that receives the elongate element (60) and has a sealing portion (25) defining an orifice (0) for the elongate element (60), and the secondary chamber (C2) is defined between the elongate element (60) and the sheath (24) such that the removal of the elongate element (60) from the reservoir (2) when the system is used for the first time causes the second product (P2) to flow by gravity through the orifice (0) into the primary chamber (C1) of the reservoir (2).

Description

System for packaging and dispensing a fluid product, in particular a fluid cosmetic product.

The present invention relates to a system for packaging and dispensing a fluid composition. The invention is more particularly applicable in the field of packaging systems for fluid cosmetic products, the product of which must be delivered in the form of doses, in particular by means of a pipette.

"Cosmetic product" means any product as defined in Regulation (EC) No 1223/2009 of the European Parliament and of the Council of 30 November 2009 on cosmetic products.

More particularly, the invention relates to a packaging and dispensing system in which two different compositions (or products) fluids are contained separately within the system before the first use thereof, these two compositions being mixed at the time of the first use of the system to form a fluid composition (or product) to be collected and dispensed. By "fluid product" or "fluid composition" is meant a product or a composition capable of flowing by gravity under the effect of its own weight.

One of the two compositions may be present in the system as the main composition and the other of the two compositions as a secondary composition, with for example a volume of secondary composition 10 to 30 times less than the principal composition volume. The system may for example contain a main composition volume of between 10 and 50 ml, in particular of the order of 30 ml, in which case the system comprises a volume of secondary composition of the order of 0.5 to 3 ml.

Thus, the main composition may, for example, be a serum, such as a skin care serum, and the secondary composition may be a catalyst for the main composition in the form of a highly concentrated formula, in particular with respect to at the concentration of the main composition.

In this type of packaging and dispensing system, it may be particularly advantageous to separate the two fluid compositions, that is to say, to isolate the two fluid compositions in isolation within the system until the first use of it, and realize the mixing of the two fluid compositions at the time of this first use.

Thus, the subject of the present invention is a system for packaging and dispensing a fluid product comprising:

a reservoir delimiting a primary chamber intended to contain a first fluid product before the first use of the system and intended to contain a fluid product resulting from mixing the first fluid product and a second fluid product after the first use of the system, and

a closure member of the reservoir comprising a sampling and dispensing device having an elongated element configured to be inserted into the reservoir in order to allow the sampling of at least one dose of fluid product contained in the primary chamber of the reservoir, and for be extracted outside the reservoir to allow the distribution of at least one dose of fluid contained in the primary chamber,

wherein the closure member and the reservoir together define a secondary chamber for containing the second fluid. This secondary chamber is adapted to open when the sampling and dispensing organ is extracted outside the reservoir at the first use of the system so as to cause the gravity flow of the second fluid product in the primary chamber of the reservoir and to form with the first fluid product fluid to be collected and dispensed.

In the state of the art, various systems of this type are known, which, however, have disadvantages, particularly in terms of ergonomics and ease of use, structural complexity or reliability of intimate mixing of the first and second fluids at the time of first use of the system and the first fluid sample (s) resulting from the mixing of the first and second fluid products.

Thus, document KR200362397 discloses a system for packaging and dispensing a fluid composition by means of a pipette associated with a suction bulb and expelling the fluid composition inside the pipette. In this system, before the first use, the reservoir is filled with a first fluid composition, the closure member is screwed onto the neck of the reservoir and the end of the pipette associated with the reservoir closure member protrudes secondary chamber defined within the closure member around the pipette and containing a second fluid composition. During the first use of the system, the user is required to press the bulb so as to axially move the pipette towards the bottom of the reservoir, which causes the simultaneous displacement of the shutter disc which falls into the reservoir and the opening of the secondary chamber; thus, the second composition is discharged by gravity into the primary chamber of the reservoir containing the first fluid composition and the mixture of the first and second fluid compositions is made to form the fluid composition to be withdrawn and dispensed.

Also known from US20150059923 a system for packaging and dispensing a fluid composition by means of a pipette associated with a suction and expulsion bulb, wherein a secondary chamber is defined at the reservoir and closed before the first use of the device by a sealing cup associated with an actuating ring. During the first use of the system, the user is caused to actuate the actuating ring so as to cause the displacement of the closure cup and the opening of the secondary chamber. The second fluid composition contained in the secondary chamber then flows by gravity into the primary chamber of the reservoir containing the first fluid composition and the mixture of the first and second fluid compositions is made to form the fluid composition to be taken and dispensed. .

In either of these systems, during the first use, the user is forced to perform a specific manipulation to cause the opening of the secondary chamber and the mixture of the two fluid compositions within the chamber primary reservoir, before handling the pear to aspirate the fluid composition to be withdrawn and unscrew the closure member secured to the pipette to dispense the withdrawn fluid composition. Thus, the use of this type of system is restrictive, the user having a particular manipulation of the system to perform to cause the opening of the secondary chamber and the mixture of the first and second fluid compositions within the primary chamber of the reservoir, before the pipette and the associated pear can be conventionally used to collect and dispense the fluid product resulting from the mixing of the first and second fluid compositions. Document WO2015034165 proposes a system similar to the previous ones, in which the secondary chamber is defined within the closure member by a variable volume chamber associated with a piston and within the pipette itself, the inside of the pipette communicating with the variable volume chamber. During conditioning of the system, the variable volume chamber and the pipette are filled with the second composition and the dispensing orifice of the pipette is closed sealingly by a closure cap made of elastically deformable material. The first composition is poured into a main body of the reservoir having a neck and a peripheral wall, and whose bottom is closed by a closure element having an orifice communicating with the interior of the main body of the reservoir and defining a housing with a closing cap attached to the main body of the tank. The assembly formed by the pipette, its closure cap and the closure member is then screwed onto the main body of the reservoir; In doing so, the free end of the pipette provided with its closure cap is inserted through the orifice of the closure element, this insertion being accompanied by an elastic deformation of the closure cap when passing through the orifice and elastic return of the closure cap in the housing defined in the bottom of the main body of the tank.

During the first use of the system, the user unscrews the closure member of the reservoir neck, which has the effect of axially driving the pipette in a direction of extraction outside the reservoir; in doing so, the free end of the pipette is moved away from the bottom of the tank and the closure cap, retained inside the housing of the bottom of the tank, comes clear the dispensing orifice of the pipette and falls at the bottom of the house. The user then presses the piston associated with the variable volume chamber, so as to cause the ejection of the second fluid composition contained within the variable volume chamber and within the pipette inside the chamber primary of the tank. The user can then conventionally use the pipette and the associated bulb to collect and dispense the fluid product resulting from mixing the first and second fluid compositions.

This system provides improvements over the aforementioned devices in terms of usability, but still requires the user secondary and the mixture of the two fluid compositions within the primary chamber of the reservoir, before the pear can be manipulated to aspirate the fluid composition to be withdrawn and unscrew the closure member secured to the pipette to dispense the withdrawn fluid composition . Moreover, such a system has a complex structure, in particular in terms of the number of parts implemented within it, as well as constraints for filling the secondary chamber during conditioning of the system before the first use. Finally, in WO2015034165, the reservoir is necessarily made of several parts, namely a main body which may optionally be made of glass, a closure element and a closure cap, but can not be obtained in the form of a monobloc element, in particular made of glass.

There is therefore a need for a packaging and dispensing system of the aforementioned type allowing communication of the secondary chamber with the primary chamber without specific gestures of the user when opening the tank at the time of the first use of the system. On the other hand, there is a need for such systems to be simple in design and therefore inexpensive. Finally, there is a need for a packaging and dispensing system of the aforementioned type in which the tank could be made entirely of glass.

The present invention therefore aims to provide an improved system for packaging and dispensing a fluid cosmetic composition resulting from the mixture during the first use of the system of a first and a second fluid cosmetic compositions in order to overcome the disadvantages supra.

For this purpose, the invention proposes a packaging and dispensing system of the aforementioned type, characterized in that the reservoir is provided with a sheath adapted to receive at least partially the elongated element and having a sealing portion defining a passage opening for the elongated element, said sealing portion being in sealing contact with the elongate element when it is inserted into the reservoir,

and in that the secondary chamber is defined between the elongated element and the sheath, so that the extraction of the elongated element out of the reservoir at the sealing portion and the elongate member and thus the gravity flow of the second fluid product through the passage opening in the primary chamber of the reservoir. The flow at the first use of the system of the second fluid product inside the primary chamber of the reservoir causes the mixing of the first and second fluid products to form the fluid to be taken and dispensed by means of the sampling device and distribution.

The invention advantageously allows to have a simple design system, that is to say implementing a limited number of parts to assemble. In particular, in the system according to the invention, the reservoir can be made in the form of a single piece, in particular glass.

In addition, with a system according to the invention, the user does not have to perform excessive manipulations: the simple first opening of the device and extraction of the elongated element outside the tank causes the opening of the secondary chamber, flowing the second fluid within the reservoir primary chamber and intimately mixing the first and second fluids within the reservoir primary chamber to form the fluid to be withdrawn and dispensed.

By "first use" of the system is meant here the first opening of the system after its packaging and filling with the first and second fluid products, that is to say the first time that the closure member is detached from the reservoir and that the elongate element of the sampling and dispensing device is extracted outside the reservoir.

Moreover, by sealing contact, it is meant here that the contact existing between the sealing portion of the sleeve and the elongated member of the closure member is sealed to the fluid products contained within the system, and in particular to the second fluid product contained in the secondary chamber before the first use of the system.

In preferred embodiments of the invention, one or more of the following may also be used:

the tank has an opening and is surmounted by a trim band fixed on the tank and having an opening communicating with the opening of the tank, and the sleeve is integral with the hoop, preferably integral with the hoop;

the sealing portion is formed by a flexible sealing lip, preferably made of the same material as the sheath, such as a plastic material of the polypropylene (PP) type, or in a material different from that of the sheath, for example elastomeric material or silicone when the sheath is made of a plastic material of the polypropylene (PP) type, said flexible sealing lip being in sealing contact with the elongated element when it is inserted into the reservoir; thanks to these provisions, it ensures a satisfactory seal of the secondary chamber at the contact between the sealing portion of the sleeve and the outer surface of the elongated member;

the elongated element has, along an axis of elongation, a first end secured to the closure member and a second free end,

and the sealing portion of the sheath is located in the vicinity of the free end of the elongated element when it is inserted into the reservoir;

the reservoir has a longitudinal axis, the elongated element when it is inserted into the reservoir comprises a portion extending inside the reservoir having a projection length on the longitudinal axis, and in which the secondary chamber extends at least 80% of said length along the longitudinal axis; thanks to these arrangements, when the tank is made of a transparent or translucent material, such as glass, that it is filled with a relatively transparent or translucent first fluid and that the system is conditioned before its first use, it is possible to give the visual illusion for the user that the second fluid product received in the secondary chamber is inside the elongated element.

the sampling and dispensing device comprises a dispensing pipette forming the elongate element and provided with a sampling and dispensing head, and the closing member comprises a pumping means, in particular a piston pump, connected to a push button for aspirating or expelling a dose of product contained in the dispensing pipette; thus, in this embodiment, the sampling and dispensing device comprises a pipette having a pipette body in the form of a hollow tube, of cylindrical or non-cylindrical cross-section, the inside of which communicates with a head distribution. Alternatively, it could be provided that the sampling and dispensing device comprises a rod forming the elongated element and provided at its free end with a applicator head of a fluid cosmetic product, such as an applicator head for mascara, gloss, liner or other, for example in the form of a brush consisting of a plurality of bristles or a brush made of

- The reservoir and the closure member have complementary retaining elements adapted to cooperate to ensure the retention of the closure member on the reservoir;

- The complementary retaining elements comprise a thread provided on the reservoir and a complementary thread provided on the push button;

- The complementary retaining elements have along the longitudinal axis of the reservoir a release stroke and wherein said release stroke is greater than or equal to the axial distance of extraction of the elongate member causing the rupture of the sealing contact between the portion sealing member and said elongate member. In other words, the release stroke of the complementary retaining elements along the longitudinal axis is greater than or equal to the distance along the longitudinal axis separating the sealing portion of the sheath and the free end of the elongated element. Thus, at the first use of the system, the rupture of the sealing contact between the sealing portion and the elongated element, and the flow of the second fluid product contained in the secondary chamber to the primary chamber of the reservoir, occurs before the release. total of the complementary retaining elements of the closure member on the tank allowing extraction of the elongated element secured to the closure member outside the reservoir.

- The portion of the push button comprising the complementary thread is formed by at least one tongue extending from a bearing wall of the push button towards the reservoir;

the closing member comprises a covering element in which the push-button is slidably mounted without rotation relative to the covering element, so that the rotation of the covering member of the closing member relative to the reservoir causes the axial translation of the push button relative to the trim element;

the material in which the push button is made is more rigid than - The push button comprises a piston and the trim member comprises a pump body, the piston being slidably mounted and sealed relative to the pump body;

the covering element and the pump body are made of material;

- the push button and the piston came from matter;

the device comprises an elastic element, in particular a spring, positioned between the push button and the covering element, said elastic element exerting a force tending to move these two elements away from each other;

the closure member comprises a filling bowl intended to be filled with the second fluid product when the elongated element is extracted outside the reservoir, and communicating in a sealed manner with the secondary chamber when the elongated element is inserted into the tank.

The present invention furthermore relates to a "ready-to-use" packaging and dispensing system, in which, before the first use of the system, the primary chamber contains a first fluid and the secondary chamber contains a second fluid, preferably different from the first fluid.

Furthermore, the present invention also aims at providing a packaging method before first use of a packaging and dispensing system as described above, comprising the following steps:

filling the primary chamber of the reservoir with the first fluid product;

inserting the elongated element into the reservoir so as to form the secondary chamber;

filling the secondary chamber with the second fluid product;

- Closure of the tank by the closure member.

Thanks to these provisions, the conditioning of the system before its first use, and in particular the industrial filling of the system with the first and second fluid products, is facilitated.

According to an advantageous arrangement of the process according to the invention:

the step of inserting the elongate element into the reservoir comprises the following sub-steps:

* Filling of the filling bowl of the organ of * placing the sheath on the elongated member of the closure member so as to define the secondary chamber sealingly communicating with the filling bowl;

the step of filling the secondary chamber is carried out by gravity flow of the second fluid product from the filling bowl to the secondary chamber, and

- The tank closing step is in the fixing of the assembly formed by the sleeve and the closure member on the reservoir.

The invention will be better understood on reading the following description of nonlimiting examples of implementation thereof, with reference to the appended drawings, in which:

- Figure 1 illustrates in perspective an embodiment of the packaging and dispensing device according to the invention;

- Figure 2 illustrates in exploded perspective the closure member of the embodiment of the packaging and dispensing device according to the invention of Figure 1;

- Figure 3 shows an exploded longitudinal sectional view of the closure member of Figure 2;

- Figure 4 shows an exploded longitudinal sectional view of the closure member of Figure 2 according to a sectional plane perpendicular to that of Figure 3;

- Figures 5 to 7 show longitudinal sectional views of the device of Figure 1 in different positions of the closure member relative to the reservoir (for the sake of clarity, in Figures 5 and 6, the reservoir is shown without hatches);

- Figure 8 shows a longitudinal sectional view of the closure member of Figure 1 in filling position of the filling bowl with the second fluid;

- Figure 9 shows a longitudinal sectional view of the closure member of Figure 1 during its assembly with the shell of the tank.

Referring to Figures 1 to 6, a system 1 for packaging and dispensing a fluid product according to the invention is shown. The product or fluid composition contained in the system is preferably a product product is in fluid form, preferably liquid. The system comprises a reservoir 2 for containing and storing the product before it is marketed and then during its lifetime with a user.

To preserve the product contained inside the system, the tank 2 is closed by a closing member 3. In the illustrated embodiment, the closure member 3 comprises an outer casing 4 and a push button 5 whose function will be described in more detail in the following description. This push button 5 is in the retracted position in FIG. It is substantially flush with the outer envelope 4 along a longitudinal axis X defined by the reservoir 2; in other words, the push button 5 emerges very little axially along the longitudinal axis X relative to the outer envelope 4. Alternatively, this push button 5 in the retracted position could be completely hidden in the outer envelope 4 or contrario protruding axially along the longitudinal axis X.

As can be seen in particular in FIGS. 2, 5 and 6, the reservoir 2 is in the form of a hollow body defining a longitudinal axis X, rectilinear in the exemplary embodiment illustrated, closed at one end by a bottom 201 and having at the opposite end an opening 202 defined by a neck 203, the bottom 201 and the opening 202 being connected by a peripheral wall 200.

The tank 2 is here surmounted by a trim ring 23 fixed on the tank 2, here by snap-fastening lugs 21 1, or a snap-in sleeve, provided on the band 23 on the neck 202 of the reservoir 2. The trim band 23 comprises a neck 21 defining an opening 210 communicating with the opening 202 of the reservoir 2. The axis of the opening 210 of the neck 21 of the hoop here coincides with the axis of the opening 202 of the neck 203 of the reservoir 2 and corresponds, in the exemplary embodiment illustrated, to the longitudinal axis X in which the hollow body forming the reservoir 2 extends mainly.

Furthermore, the neck 21 of the collar 23 has a means for fixing the closure member 3, for example a thread 22 projecting radially from the outer wall of the neck 21.

In the remainder of the description, the terms "upper" and "lower" refer to the longitudinal axis X when the reservoir 2 rests on its bottom 201 and the closure member 3 is in the closed position on the tank 2. are in relation to a radial direction perpendicular to the longitudinal axis X of the tank 2.

The tank 2 may for example be made of glass, or from a thermoplastic material. It may advantageously be made of translucent material, tinted or not. It can for example be obtained by an extrusion blow molding technique. It can also be obtained from the assembly of several components. It is for example present a cross section whose outer contour is circular or ovoid.

In the exemplary embodiment illustrated, the trim band 23 provides the aesthetics and exterior design of the system 1. This trim ring 23 may be made of a material different from the tank 2 and / or the outer envelope 4 of the closure member 3 in order to create an effect of material and / or color with the and / either of these elements. This trim band 23 may also be surmounted by a trim cap 230 to hide the band 23 and may for example be made of metal or thermoplastic material, the latter may be metallized surface. This trim cap 230 may for example be snapped onto the trim band 23.

As can be seen in FIGS. 5 and 6, reservoir 2 delimits a primary chamber C1 intended to contain a first fluid product P1 before the first use of system 1, for example approximately 30 ml of first product, and intended to contain a fluid product P resulting from mixing the first fluid product P1 and a second fluid product P2 after the first use of the system 1.

Furthermore, and as visible in FIGS. 2 to 6, the closure member 3 comprises a product sampling and dispensing device 6 having an elongated element 60 configured to be inserted into the reservoir 2 in order to allow the sampling and dispensing at least one dose of fluid product P contained in the primary chamber C1 of the reservoir 2 after the first use of the system 1.

By "first use" of the system 1 is meant here the first opening of the system 1, that is to say the first time that the closure member 3 is detached from the reservoir 2 and the elongate member 60 of the device sampling and distribution 6 is extracted outside the tank 2. Similarly, when it is stated that the elongated element 60 is inserted into the reservoir 2, it is meant that the elongate element extends at least partially inside the reservoir 2 and that the closure member 3 closes the tank 2.

In the embodiment illustrated in the figures, the elongated element 60 of the closing member 3 has an axis of elongation X 'that is rectilinear and coincides with the longitudinal axis X of the reservoir 2 when the elongated element 60 is inserted. inside of it. As a variant, it would be possible for the elongation axis X 'of the elongated element 60 to be curved. This elongated element 60 has along the axis of elongation X 'a first end 61 integral with the closure member 3 and a second opposite end 62 free.

The sampling and dispensing device 6 here comprises an application pipette 60 forming the elongated element and provided at its free end 62 with a product sampling and dispensing head 63. The closure member 3 further comprises a pumping means, in particular a piston pump, connected to the push button 5 and making it possible to selectively suck or expel a dose of product P contained in the application pipette 60. In a variant, provision may be made for the organ closure 3 is equipped with a suction bulb and expulsion of the fluid contained inside the pipette 60.

As visible in the figures, the covering element 4 comprises a sleeve 41 forming a tubular outer envelope serving as a gripping member of the closure member 3 in particular to separate it from the tank 2. Alternatively, for reasons of aestheticism, a clevis can be added around the sleeve to hide it. This screed may for example be made of metal or thermoplastic material, the latter may be metallized surface.

As can be seen in particular in FIGS. 3 and 4, the mechanism or pumping means comprises a pump body 45 formed by a tubular liner 46 open at its upper end and closed at its lower end by a closure wall 47 comprising an orifice 48. in the center. The outer diameter of the liner 46 forming the pump body 45 is smaller than the inside diameter of the neck 21 of the tank 2.

The pump body 45 is connected to the inner wall of the sleeve 41 by at least two material bridges 44. The material bridges 44 here take the form of two beams transverse to the axis of elongation X. These two beams are thus forming openings 49 on either side of the material bridges 44 and between the tubular liner 46 of the pump body 45 and the inner wall of the sleeve 41. These openings 49 are positioned facing the thread 22 of the neck 21 of the reservoir 2 when the closure member 3 is in the closed position.

A sealing skirt 40 of external diameter substantially equal to the internal diameter of the neck 21 of the tank 2, extends from the closing wall 47 of the pump body 45 so as to fit into the neck 21 of the tank 2 to form a sealed contact with the inner face of the neck 21 when the closure member 3 is in the closed position on the reservoir 2.

The applicator pipette 60 under presents in the form of a tubular hollow body extending along the axis of elongation X ', opening at an upper end 61 in the orifice 48 of the wall 47 closing the lower part of the pump body 45. On the other hand pipette 60 has a dispensing head 63 at its free end 62, said head 63 having an orifice 630 opening out of the pipette 60 and communicating with the internal space of the pipette via a channel 631. This orifice 630 opens into the reservoir 2 when the closure member 3 is in the closed position thereon. The inner diameter of the pipette 60 is smaller than the inner diameter of the pump body 45, for example the inner diameter of the pipette 60 is two times smaller than the inner diameter of the pump body 45.

The orifice 630 and the communication channel 631 of the dispensing head 63 of the pipette 60 can form a restriction with respect to the inner section of the pipette 60, in order to limit the gravitational flow of the fluid that has been pumped. The restriction makes it possible to retain the product by capillarity. This restriction also allows a more precise application of the product P.

The upper end 61 of the pipette 60 is connected to the wall 47. The pipette 60 is for example retained by snapping on the wall 47 closing the lower part of the pump body 45. The pipette 60 can also be guided to the inside a tubular guide sleeve 42 and latched by its end 61 to the wall 47. The pipette 60 may for example be made of glass or a thermoplastic material.

Alternatively, the pipette 60 may be integral with the pump body 45 and the trim member 4 to form a one-piece assembly. This polypropylene (PP), polyoxymethylene (POM), high-density polyethylene (HDPE), polyethylene terephthalate (PET), polycyclohexylendimethylene terephthalate glycol (PCTG), or acrylonitrile butadiene styrene (ABS). Thus this assembly can be achieved by injection of a thermoplastic material in a single injection step.

The push button 5 comprises an upper plate forming a bearing surface 51 allowing the user to press the push button 5.

As can be seen in particular in FIGS. 3 to 7, the push-button 5 is slidably mounted in the covering element 4. For this purpose, the push-button 5 has an external skirt 52 extending from the periphery of the surface. 51 support in the cladding element 4. The outer skirt 52 of the push button 5 has at least one outer bead 53 which is snapped under a protrusion 39 or a housing of the inner face sleeve 41 of the element d 4. The bead 53 is for example located at an axial end of the skirt 52.

The contact between the bead 53 and the protrusion 39 makes it possible to limit the axial mobility of the push-button 5 inside the covering element 4. In this position of contact in which the push-button 5 is in its position the higher relative to the covering element 4, the push button 5 emerges several millimeters along the axis of elongation X ', relative to the upper end of the sleeve 41. If a user exerts a push on the push button 5 so as to push it inside the covering element 4, the push button 5 will slide inside the sleeve 41.

The push button 5 also comprises a piston 54 formed by an internal tubular erected inside the outer skirt 52, from the bearing surface 51 to the tubular liner 46 of the pump body 45 so that the tubular jacket 46 to this effect the diameter of the internal tubing forming the piston 54 is substantially equal to the outer diameter of the tubular liner 46 of the pump body 45 so as to form a piston 54 sliding around this jacket 46 In order to form a sufficiently leaktight and sliding contact in the internal tubing of the piston 54, the end of the pump body 45 is refined and flares in its upper part to form a flexible lip 55 providing a sealed annular contact with the inner periphery of the internal tubing of the piston 54.

The tubular liner 46 of the pump body 45 closed by the piston 54 thus forms a chamber of variable volume with sliding of the piston 54. Thus the displacement of the push button 5 relative to the covering element 4 allows suction pumping of the product. in the pipette 60 when the orifice 630 of the dispensing head 63 of the pipette 60 is immersed in the product P and the displacement of the piston 54 in the pump body 45 causes an increase in the volume of the chamber. Conversely, a sliding of the piston 54 in the opposite direction causes a decrease in the volume of the chamber and allows an expulsion of the product P located in the pipette 60.

Alternatively not shown, the mechanism or pumping means could be achieved otherwise, in particular, in contrast to the mechanism shown, the piston 54 could be inserted into the pump body 45. Other mechanisms are also conceivable, such as the use of a deformable membrane with the displacement of the push button to allow to generate a suction or expulsion of product into the pipette.

The push button 5 also comprises at least two tongues 56, raised axially from the outer skirt 52. The tongues 56 have at their lower end and on their internal face a complementary thread 43, or complementary tapping, intended to cooperate with the thread 22 provided on the neck of the reservoir 2. Thus, in the illustrated embodiment, the complementary retention elements provided on the reservoir 2 and the closure member 3 and adapted to cooperate to ensure the retention of the closure member 3 on the tank 2 are formed of the thread 22 provided on the neck 21 of the band 23 fixed on the tank 2 and the complementary thread 43 provided on the push button 5.

These tongues 56 pass through the openings 49 located between the material bridges 44, the tubular liner 46 of the pump body 45 and the sleeve 41. Thus the free ends of the tongues 56 are positioned between the sleeve 41 and the pipette 60, and can come into contact with the thread 22 of the neck 21 of the reservoir 2 when the closure member 3 is engaged on the reservoir 2.

The length of the tongues 56 is adapted so that the piston 54 is in the low position when the closure member 3 is in the fully screwed position. The push button 5 is made of a relatively rigid plastic material such as polyethylene (PE), polypropylene (PP), polyoxy methylene (POM) or polybutylene terephthalate (PBT) for example. Advantageously, the material in which the push button 5 is made is more rigid than that used to produce the covering element 4. This makes it possible to obtain a good seal between these two parts, in particular during the sliding of the piston 54 around the body of the body. pump 45, while ensuring sufficient rigidity and resistance of the tongues supporting the complementary thread 43 of the push button 5.

Advantageously, the piston 54 is integral with the push button 5 to form a one-piece assembly. Thus this assembly can be achieved by injection of a thermoplastic material in a single injection step.

Alternatively a seal can be added to the pumping mechanism, this assembly then being made in at least two parts.

A spring 7, for example of the helical spring type, is positioned between the push button 5 and the covering element 4 in order to exert a force along the axis of elongation X 'tending to move these two parts away from one another. the other. More precisely, the spring is compressed by being supported on the material bridges 44 of the cladding element 4 on the one hand, and on the inner face of the upper plate forming the bearing surface 51 of the push button 5.

As can be seen in FIG. 5 illustrating the system before its first use, the primary chamber C1 of the tank 2 initially contains a first fluid product P1, for example about 30 ml of first product, and the closure member 3 and the reservoir define together a secondary chamber C2 initially containing a second fluid product P2, for example about 0.5 ml of second product. This second fluid product P2 can be, for example, an additive or catalyst intended to be mixed with the first fluid product P1 contained in the primary chamber of the reservoir 2 at the first use of the system, or at the first opening of the system 1, to constitute the product fluid P to be taken and dispensed by means of the pipette 60.

According to the invention, the reservoir 2 is provided with a sleeve 24 adapted to at least partially receive the application pipette 60 forming here the elongated element and having a sealing portion 25 defining a passage orifice pipette 60 when it is inserted into the reservoir 2 and the secondary chamber C2, intended to contain the second fluid product P2 before the first use of the system, is defined between the pipette 60 and the sleeve 24, so that the extraction of the pipette 60 outside the reservoir 2 at the first use of the system 1 causes the rupture of the sealing contact between the sealing portion 25 and the pipette 60 and thus the flow by gravity of the second fluid product P2 through the orifice passage 0 in the primary chamber C1 of the tank 2 to form with the first fluid product P1 the fluid product P to be taken and dispensed after the first use, that is to say the first opening of the system 1.

The secondary chamber C2 is thus defined between the pipette 60 and the sheath

24 and more specifically between the radially outer surface 600 of the pipette 60 and the radially inner surface 240 of the sleeve 24.

In the embodiment illustrated in the figures, the sleeve 24 is integral with the trim band 23. More specifically, the sleeve 24 is here integral with the trim band 23.

Furthermore, the sealing portion is formed by a flexible lip 25, provided here at the lower end of the sleeve 24 and in sealing contact with the pipette 60 when it is inserted into the reservoir 2. The flexible lip

25 may be advantageously made of the same material as the sheath 24, such as a plastic material of the polypropylene (PP) type, or in a material different from that of the sheath 24, for example of elastomer material or silicone, typically overmolded on the lower end of the sheath, when it is made of a plastic material of the polypropylene type.

According to an advantageous arrangement, the flexible lip 25 forming the sealing potion of the sheath 24 is located near the free end 62 of the pipette 60 when it is inserted into the tank 2, above the head of the distribution 63. With these provisions and as shown in Figures 5 and 6, the first opening of the system 1, a short extraction stroke d of the pipette 60 outside the tank 2 is sufficient to cause the rupture of the sealed contact between the flexible lip 25 and the pipette 60, which causes the flow E by gravity of the second fluid product P2 contained in the secondary chamber C2 to the primary chamber C1 of the reservoir 2 and the mixture of the first and second fluid products P1, P2 to form the fluid product P to be taken and dispensed at According to another advantageous arrangement, the pipette 60, when inserted into the tank 2, comprises a portion extending inside the tank 2 having a certain length I in projection on the longitudinal axis X of the tank 2 and the secondary chamber C2 extends over at least 80% of this length I along the longitudinal axis X. In other words, the sleeve 24 is dimensioned so as to wrap the portion of the pipette 60 extending inside the reservoir 2 on at least 80% of its length I along the longitudinal axis X. In this way, if the tank 2 is made of translucent material, with a primary chamber filled with a first transparent or translucent fluid product, when the secondary chamber C2 is filled with a suitable quantity of second fluid product P2 before the first use of the system 1, it is possible to give the illusion that this second fluid product P2 is contained inside the pipette 60 and thus give the system 1 before its first use a visual identity and aesthetic characteristic. It is also advantageous that, before the first use of the system, the second fluid product is contained in the sheath, outside the pipette rather than inside the pipette; in the documents of the state of the art in which, before the first use of the system, the second fluid product is contained inside the sampling pipette, there is a significant risk that during the first samples of fluid product P resulting from the mixing of the first and second fluid products P1, P2 after the first use of the system, the fluid product P removed has a higher concentration of second fluid than desired, because leftover second fluid product having adhered or at least "wet" the inner wall of the pipette. The system according to the invention overcomes such drawbacks of the aforementioned systems of the state of the art.

Thus, and as visible in particular in Figures 5 and 6, the sleeve 24 has along the longitudinal axis X of the tank 2, a first end 241 connecting to the neck 21 of the hoop 23 and a second end opposite 242 on which is provided the flexible lip 25. The axial distance separating the first end 241 and the second end 242 of the sleeve 24 is greater than or equal to 80% of the length of the portion of the pipette 60 extending inside the reservoir 2 when it is inserted into the tank 2 and the closure member 3 closes the tank 2. The complementary retention elements of the reservoir 2 and the closure member 3, formed in the embodiment illustrated by a thread 22 provided on the neck 21 of the collar 23 and a complementary thread 43, or complementary thread, provided on the push button 5, have along the longitudinal axis X of the tank a release stroke c. This axial release stroke c corresponds to the minimum axial distance that the closing member 3 must perform relative to the reservoir 2 so that the complementary retaining elements are no longer engaged and the elongated element 60 can be extracted outside. 2. In the case of complementary retaining elements formed by a thread and a tapping, this release stroke c corresponds to the axial distance traveled by the closure member 3 when it has been completely unscrewed from the collar 21 of the trim band 23 and that the threads belonging to the tapping 43 of the push button 5 are no longer in engagement with the threads of the thread 22 belonging to the trim band 23.

As explained above and visible in particular in Figure 5, an axial distance d extraction of the elongated element, here the pipette 60, outside the tank 2 causing the rupture of the sealing contact between the sealing portion 25 and the elongated element 60 may be defined as the distance d separating the sealing portion 25 from the free end 62 of the elongated element when it is inserted inside the reservoir 2 and that the closing 3 closes the tank 2.

According to a particularly advantageous arrangement of the invention, the flexible lip 25 forming the sealing portion of the sheath 24 is provided at an axial position along the longitudinal axis X of the reservoir 2 chosen so that the distance d separating the flexible lip 25 of the free end 62 of the pipette 60 is less than the axial stroke c of release of the complementary retaining means 22, 43 of the closure member 3 on the reservoir 2.

In other words, the axial stroke c of release of the complementary retaining means 22, 43 of the closure member 3 on the reservoir 2 is greater than or equal to the axial distance d of extraction of the elongated element 60, outside the reservoir 2 causing the rupture of the sealing contact between the sealing portion 25 and the elongated element 60. Thanks to these arrangements, it is ensured that the sealing contact between the sealing portion 25 and the elongated element 60 is C2 has flowed by gravity inside the primary chamber P1 of the tank 2, even before the additional retaining means provided on the closure member 3 and the tank 2 are completely released and allows the total extraction of the elongated element 60 outside the reservoir 2.

The operation of the packaging and dispensing system according to the invention will now be described with reference to FIGS. 5 to 7.

In FIG. 5, the closure member 3 is in the closed position on the reservoir 2. The push button 5 is in the fully depressed position since the fins 56 are completely screwed onto the neck 21 of the hoop 23 fitted to the reservoir 2. more under the effect of the force of the spring 7 the cladding element 4 is also pressed against the shoulder formed on the wall 200 of the tank 2, here against the cap 230 fitting trim ring 23.

Furthermore, in this position of Figure 5, illustrating the system 1 according to the invention before its first use, that is to say before the first opening of the tank 2 by the closure member 3, the primary chamber C1 of the reservoir 2 contains a first fluid product P1 and the secondary chamber C2 contains a second fluid product P2.

When a user receives the system 1 and wishes to use it for the first time by extracting the pipette 60 outside the reservoir 2, it unscrews the closure member 3 of the reservoir 2. The rotation of the covering element 4 generates the rotation of the push button 5 due to the cooperation between the material bridges 44 and tabs 56 disposed in the openings 49 between the material bridges 44. The rotation of the push button 5 allows its translation along longitudinal X by unscrewing the thread complementary 43 tabs 53 relative to the thread 22 of the neck 21 of the hoop 23 equipping the tank 2. Under the effect of the spring plating against the shoulder of the tank 2, the trim element 4 remains fixed height by relative to the reservoir 2 until the closure member 3 is completely unscrewed and the closure member 3 has traversed the release stroke c complementary retaining means relative to the reservoir 2.

Concomitant with this unscrewing movement of the closing member 3 with respect to the reservoir 2 and before having traveled the release stroke c, the pipette 60 is driven in translation along the longitudinal axis X of the translation movement, as soon as the pipette 60 has traveled the distance d separating its free end 62 provided with the dispensing head 63 of the flexible sealing lip 25 of the sleeve 24, the sealing contact between the flexible lip 25 and the pipette 60 is broken, causing the flow E by gravity of the second product P2 contained in the secondary chamber C2 inside the primary chamber C1 of the tank 2.

The translational movement of the push button 5 relative to the covering element 4 simultaneously generates an increase in the volume of the chamber formed by the pump body 45 and the piston 54 so that a dose of product P, resulting from the mixing of the first fluid product P1 and the second fluid product P2 inside the primary chamber C1 of the reservoir 2, is sucked as represented by the arrow A in FIG. 6 into the pipette 60, the dispensing head 63 of which is positioned close to the bottom of the tank 2 when the pipette 60 is inserted into the tank 2 and the closure member 3 closes the tank 2. During the total extraction of the pipette 60 outside the tank 2, the flexible lip 25 can optionally scrape the dispensing head 63 to rid it of the fluid product adhered to its outer surface.

In FIG. 6, the closing member 3 is dissociated from the reservoir 2 and the push button 5 is in the outgoing position corresponding to the position in which the push button 5 is located, for example before the expulsion of a dose of product P outside the pipette 60. The volume of the chamber formed by the pump body 45 and the piston 54 is then maximal. In this position, the free end of each tongue 56 comprising the complementary threading 43 is positioned below the pump body 45 so that when positioning the closure member 3 on the reservoir 2, the complementary threading 43 can cooperate. with the thread 22 of the neck 21 of the reservoir 2 while the lower edge of the sleeve 41 of the covering element 4 is in contact with the trim cap 230 fitted to the collar 23 fixed on the reservoir 2.

From the position shown in FIG. 6, the user can exert a force F on the push button 5 while maintaining the covering element 4 as shown in FIG. 7. The push button 5 then slides in cladding element 4 and the volume of the chamber formed by the pump body 45 and the piston 54 decreases to expel a dose of product P outside the pipette 60 as illustrated by the arrow EX in FIG. 7.

When the user releases the push button 5 while the latter is in the depressed position, the spring 7 pushes the push button 5 so that the volume of the chamber formed by the pump body 45 and the piston 54 increases for example to suck a dose of product if the dispensing head 63 of the pipette 6, or at least its orifice 630 is immersed in product P.

When the user closes the tank 2 with the closing member 3 to reach the closed position shown in FIG. 5, in which the push button 5 is completely screwed on the neck 21, the rotation of the covering element 4 around the neck 21, allows the free end of each tongue 56 of the push button 5 to screw on the neck 21. The screwing causes a descent of the push button 5 allowing the expulsion of the product remaining in the pipette 60 inside the primary chamber C1 of the tank 2. For a new use the user only has to unscrew the closure member 3 as previously described, the secondary chamber C2 of the system now being empty and the fluid product P contained inside the primary chamber C1 of the reservoir 2 corresponding to the mixture of the first fluid product P1 initially contained in this primary chamber C1 and the second fluid product P2 initially contained in the secondary chamber C2 of the system 1.

The present invention also relates to a method of packaging before-first use of a system 1 as described above.

In the process according to the invention, there is a tank 2 as described above and begins with a step of filling the primary chamber C1 of the tank 2 with a quantity of first fluid product P1 through the opening 202 formed by the neck 201 of the tank 2. Where appropriate, the tank 2 may already be equipped with the trim band 23 fixed on the neck 201 of the tank 2 and on which is snapped the trim cap 230; the filling of the primary chamber C1 of the tank 2 can then be done through the opening 210 defined by the neck 21 of the trim band 23.

The process then continues with a step of insertion of the elongated element 60, here formed by the pipette 60, into the reservoir 2 so as to form the secondary chamber C2 between this elongated element 60 and the sleeve 24 integral with the Then follows a step of filling the secondary chamber C2 with a certain amount of second fluid product P2. It can advantageously be provided that this defined quantity of second fluid product P2 is sufficient to fill the secondary chamber C2 up to a level allowing surrounding, wrapping and thus masking at least 80% of the length I of the portion of the elongate member 60 extending into the reservoir

2 when this elongate member 60 is inserted inside the tank 2.

For example, the defined quantity of second fluid product P2 is adjusted to be sufficient for the second fluid product P2 to fill the secondary chamber C2 by extending from the sealing portion 25 and to a level located axially slightly below of the opening 202 of the neck 203 of the tank 2.

The process then ends with a step of closing the tank 2 by the closure member 3.

In this first version of the packaging method according to the invention, the filling of the secondary chamber C2 can be done with the elongated element 60 alone inserted in the tank 2; the step of closing the reservoir 2 by the closing member 3 then consists in fixing the closure member

3 on the end 61 of the elongated element 60 and on the reservoir 2.

More specifically, in the embodiment illustrated in the figures, the step of closing the tank 2 by the closing member 3 consists of fixing here by snapping the pump body 45 on the end 61 of the pipette 60 and to screw the assembly formed of the pump body 45, the push button 5 and the outer casing 4 on the neck 21 of the tank 2 defined by the trim band 23.

According to an advantageous arrangement of the invention, the closure member

3 comprises a bowl or filling cavity CR intended to be filled with the second fluid product P2 when the elongated element 60 is extracted outside the tank 2 and before the completion of the packaging of the system 1. This filling cup CR is designed to communicate in a sealed manner with the secondary chamber C2 when the elongated element 60 is inserted into the reservoir 2, as illustrated by FIG. 5.

In the illustrated embodiment, the sealing contact existing between the sealing skirt 40 of the pump body 45 and the inner surface of the collar 21 defined the elongated element 60 is inserted inside thereof allows this sealed communication between the filling chamber CR and the secondary chamber C2.

Thus, according to an advantageous alternative arrangement of the packaging method according to the invention, the step of insertion of the elongated element 60 in the tank 2 comprises a first substep of filling the filling bowl CR of the organ closure 3 with the second fluid product P2.

This first substep is illustrated in FIG. 8, in which the closure member 3, equipped with the elongated element formed by the pipette 60, of the pump body 45 fixed on the end 61 of the pipette 60, of the outer casing 4 and the push button 5 in the retracted position inside the outer casing 4, is placed "upside down", that is to say upside down from the position that it adopts when in the closed position of the tank 2.

In the embodiment illustrated in the figures, the filling cup CR is defined by the closure wall 47, the sealing skirt 40 and the tubular guide sleeve 42 of the pump body 45 and the outer surface 600 of the pipette 60, these different elements defining an aperture 400 of filling pan CR. Thus, the filling sub-step of the filling bowl CR consists of filling as illustrated by the arrow R in FIG. 8 the filling bowl CR with the second product P2 through the opening 400 of the bowl of CR filling. This sub-step of filling the filling bowl CR with the second product P2 can for example be performed by means of a syringe.

The step of inserting the elongated element 60 into the reservoir 2 then comprises a second substep consisting in placing the sleeve 24 on the elongated element 60 so as to define the secondary chamber C2 communicating in a sealed manner with the filling bowl CR.

This second substep is illustrated in FIG. 9, in which the closing member 3, equipped with the elongated element formed by the pipette 60, of the pump body 45 fixed on the end 61 of the pipette 60, of the outer casing 4 and the push button 5 in the retracted position inside the outer casing 4 is held "upside down" with the filling cup CR filled with the second product P2; the hoop 23 which is secured to the sleeve 24 and provided with the trim cap 230 in the illustrated embodiment is then threaded vertical lines shown in Figure 9 and the hoop 23 is screwed onto the closure member 3 as illustrated by the curved arrows shown in Figure 9 by cooperation of the thread 22 provided on the neck 21 of the hoop 23 and complementary threading or additional tapping 43 provided on the push button 5.

When the band 23 is completely screwed onto the closure member 3, the flexible lip 25 of the sleeve 24 is in sealing contact with the outer surface 600 of the pipette 60 just below the dispensing head 63, and the filling bowl CR communicates in a sealed manner with the secondary chamber C2 thus defined.

In this alternative embodiment of the packaging method according to the invention, the step of filling the secondary chamber is by gravity flow of the second fluid product P2 of the filling pan CR to the secondary chamber C2, and the step of closing the reservoir lies in the fixing of the assembly formed by the sleeve 24 and the closure member 3 equipped with the elongate member 60 on the tank 2.

Thus, in the embodiment illustrated in the figures, the step of filling the secondary chamber C2 is to turn 180 ° the assembly formed of the closure member 3, equipped with the elongated element formed by the pipette 60, the pump body 45 fixed on the end 61 of the pipette 60, the outer casing 4 and the push button 5 in the retracted position inside the outer casing 4, and the hoop 23, so that the second fluid product P2 contained in the filling pan CR flows by gravity inside the secondary chamber C2.

This assembly is then fixed on the tank 2 containing the first product P1 in its primary chamber C1, for example by snapping the trim band 23 on the neck 203 of the tank 2 and the system 1 packaged and ready for the first use and the subsequent use as shown in Figure 5 is provided to the user.

Throughout the description, the phrase "having one" should be considered synonymous with "having at least one", unless the opposite is specified.

Claims

1. System (1) for packaging and dispensing a fluid product (P) comprising:

a reservoir (2) delimiting a primary chamber (C1) intended to contain a first fluid product (P1) before the first use of the system and intended to contain a fluid product (P) resulting from the mixing of the first fluid product (P1) and a second fluid product (P2) after the first use of the system, and

- a closure member (3) of the reservoir (2) comprising a sampling and dispensing device (6) having an elongated element (60) configured to be inserted into the reservoir (2) to allow the sampling of at least a dose of fluid product (P) contained in the primary chamber (C1) of the reservoir (2), and to be extracted outside the reservoir (2) to allow the dispensing of at least one dose of fluid product (P) contained in the primary chamber (C1), wherein the closure member (3) and the reservoir (2) together define a secondary chamber (C2) for containing the second fluid product (P2),

characterized in that the reservoir (2) is provided with a sleeve (24) adapted to at least partially receive the elongated element (60) and having a sealing portion (25) defining a passage orifice (O) for the elongate member (60), said sealing portion (25) being in sealing contact with the elongate member (60) when inserted into the reservoir (2),

and in that the secondary chamber (C2) is defined between the elongate member (60) and the sleeve (24), so that the extraction of the elongate member (60) out of the reservoir (2) at the first use of the system causes the rupture of the sealing contact between the sealing portion (25) and the elongated element (60) and thus the gravitational flow of the second fluid product (P2) through the orifice (O ) in the primary chamber (C1) of the reservoir (2).

2. System according to the preceding claim, wherein the reservoir (2) has an opening (202) and is surmounted by a trim band (23) fixed on the reservoir (2) and having an opening (210) communicating with the opening (202) of the reservoir (2), and wherein the sleeve (24) is integral with the hoop (23), preferably integral with the hoop (23).

3. System according to any one of claims 1 and 2, wherein the sealing portion is formed by a flexible sealing lip (25), preferably made of the same material as the sleeve (24), such as a plastic material of the Polypropylene (PP) type, or in a material different from that of the sheath (24), for example made of elastomeric material or of silicone when the sheath is made of a plastic material of the polypropylene (PP) type, lip flexible seal (25) being in sealing contact with the elongated member (60) when it is inserted into the reservoir (2).

4. System according to any one of claims 1 to 3, wherein the elongate member (60) has along an axis of elongation (Χ ') a first end (61) integral with the closure member. (3) and a second free end (62),

and wherein the sealing portion (25) of the sheath (24) is located in the vicinity of the free end (62) of the elongate member (60) when the latter is inserted into the reservoir (2).

5. System according to claim 4, wherein the reservoir (2) has a longitudinal axis (X), the elongate element (60) when inserted into the reservoir (2) comprises a portion extending to the inside the tank (2) having a certain length (I) in projection on the longitudinal axis (X), and in which the secondary chamber (C2) extends over at least 80% of said length (I) according to the longitudinal axis (X).

6. System according to any one of claims 1 to 5, wherein the sampling and dispensing device (6) comprises an application pipette (60) forming the elongate element and provided with a sampling head and distribution (63) and the closure member (3) comprises a pumping means, in particular a piston pump, connected to a push button (5) for sucking or expelling a dose of product (P) contained in the application pipette (60).

7. System according to any one of claims 1 to 6, wherein the reservoir (2) and the closure member (3) have complementary retaining elements (22, 43) adapted to cooperate to ensure restraint. of the closure member (3) on the reservoir (2).

8. System according to claim 7 attached to claim 6, wherein the complementary retaining elements comprise a thread (22) provided on the reservoir (2) and a complementary thread (43) provided on the push button (5).

9. System according to any one of claims 7 and 8, wherein the complementary retaining elements (22, 43) have along the longitudinal axis (X) of the tank (2) a release stroke (c) and wherein said release stroke (c) is greater than or equal to the axial distance (d) of extraction of the elongated member (60) causing rupture of the sealing contact between the sealing portion (25) and said elongate member (60). ).

10. System according to any one of claims 1 to 9, wherein the closure member (3) comprises a filler cup (CR) intended to be filled with the second fluid product (P2) when the elongated element ( 60) is extracted outside the reservoir (2), and sealingly communicates with the secondary chamber (C2) when the elongated element (60) is inserted into the reservoir (2).

1 1. System according to any one of claims 1 to 10, wherein the primary chamber (C1) contains a first fluid product (P1) and the secondary chamber (C2) contains a second fluid product (P2).

12. A method of packaging before first use of a device (1) for packaging and dispensing according to any one of claims 1 to 1 1, comprising the following steps:

filling the primary chamber (C1) of the reservoir (2) with the first fluid product (P1); inserting the elongate element (60) into the reservoir (2) so as to form the secondary chamber (C2);

filling the secondary chamber (C2) with the second fluid product (P2);

- Closing the tank (2) by the closure member (3).

13. The method of claim 12 applied to a device (1) for packaging and dispensing according to claim 10, wherein:

the step of inserting the elongate element (60) into the reservoir (2) comprises the following sub-steps:

^* Filling the filling bowl (CR) of the closure member (3) with the second fluid product (P2);

^* placing the sleeve (24) on the elongated member (60) of the closure member (3) so as to define the secondary chamber (C2) sealingly communicating with the filling bowl (CR);

- The step of filling the secondary chamber (C2) is by gravity flow of the second fluid product (P2) of the filling bowl (CR) to the secondary chamber (C2), and

the step of closing the reservoir (2) lies in the fixing of the assembly formed by the sheath (24) and the closing member (3) on the reservoir (2).