FR3067917B1 - DEFORMABLE CAPSULE FOR SINGLE USE - Google Patents

Abstract

The invention relates to a disposable deformable capsule comprising: a bag (11, 21) containing a predetermined quantity of only one of the two phases, the mixture of which forms a ready-to-use cosmetic product, a buffer zone (12, 22 ) vacuum separated from the bag (11, 21) by a frangible wall (14, 24), no cosmetic constituent being in said buffer zone (12, 22), a channel (3, 13, 23, 33) opening one side at the buffer zone (12, 22) and on the other side outside the capsule (1, 2).

Description

DEFORMABLE CAPSULE FOR SINGLE USE

FIELD OF THE INVENTION The invention relates to the field of single-use deformable capsules.

BACKGROUND OF THE INVENTION

According to a first prior art, there is provided a capsule containing one or more pockets separated from each other, each pocket containing a phase intended to be mixed with the other phases contained in the other pockets of the capsule, for a capsule containing several separate phases. from each other, but to mix together to obtain the cosmetic product then directly ready for use.

The context of use of these capsules is quite different from the context in which two capsules each containing a single phase of a cosmetic product, not usable alone independently of one another, must have their contents mixed together and homogenized together. , before this homogenized mixture of the two phases gives the cosmetic product ready for use.

According to a second prior art, for example described in the patent application ER 1459620, there are provided capsules each containing a phase of a cosmetic product formed by the homogenized mixture of these two phases. The mixture is well homogenized, and the resulting cosmetic product is ready for use immediately. Each of these capsules is filled at least partially or partially by a predetermined amount of its cosmetic product phase prior to its introduction into the machine to mix their phases together. Each of these capsules is sufficiently flexible to increase in volume so that it can contain the mixture in its totality or almost all. The invention proposes to improve the management of the volume change between on the one hand the first state of the capsule at rest containing only its own phase, and secondly the second state of the capsule during the passage of the mixture. homogenization pathway between this capsule and the other capsule. In this second state, the volume of the capsule must increase to receive the complete mixture of course more voluminous than each of the two phases to be mixed together.

Instead of presenting a pocket full of its phase in the first state, and simply expandable to accommodate the mixture in the second state, the invention proposes to store the phase in a full bag, but also to provide a separate buffer zone of this solid pocket by a frangible wall, the solid pocket can then preferably include this buffer zone, after rupture of the frangible wall.

Thus, without necessarily requiring a significant extension of the bag, which important extension is achieved for example by simple deformation of the bag, presenting the risk of rupture in case of too large increase in the volume of the bag, the mixture can be welcomed, simply by taking advantage of the presence, planned from the outset, of a buffer zone.

SUMMARY OF THE INVENTION

The object of the present invention is to provide a capsule at least partially overcoming the aforementioned drawbacks.

More particularly, the invention aims to provide a capsule that improves the compromise between firstly a good preservation of the phase contained in the pocket of a capsule before mixing and secondly a simplification of the mixing operation between the two phases respectively contained in the two respective pockets of the two capsules, this mixture, once homogenized, giving the cosmetic product ready for use. On the one hand, the preservation is better before mixing, because the frangible wall separating the two compartments of the bag allows a vacuum filling and hermetic phase in the pocket. On the other hand, the mixing operation is simplified because the pocket of the capsule, which initially contained only one phase, can, after assembling the two capsules together, receive the entire mixture containing the two phases. . To this end, the present invention proposes a disposable deformable capsule comprising: a bag containing a predetermined quantity of only one of the two phases, the mixture of which forms a ready-to-use cosmetic product, an empty buffer zone separated from the bag by a frangible wall, no cosmetic constituent being in said buffer zone, a channel opening on one side at the buffer zone and on the other side outside the capsule.

Preferably, before the rupture of said frangible wall, said empty buffer zone is in a completely flattened position in which the walls of said buffer zone are arranged against each other.

Preferably, after rupture of the frangible wall, the pocket extends into the buffer zone and encompasses it, so as to increase the volume of the pocket.

According to the invention, there is also provided a couple of disposable deformable capsules, each capsule being according to any one of the preceding claims.

According to the invention, there is also provided a pair of single-use deformable capsules comprising: a first disposable deformable capsule comprising: a first bag containing a predetermined quantity of only one of the two phases, the mixture of which forms a ready-to-use cosmetic product in use, a first empty buffer zone separated from the first pocket by a frangible wall, no cosmetic constituent being in said first buffer zone, a first channel opening on one side at the first buffer zone and the first on the other side outside the first capsule, a second disposable deformable capsule comprising: a second bag containing a predetermined quantity of the other only of the two phases, the mixture of which forms said ready-to-use cosmetic product, a second channel opening on one side to the second pocket and on the other side outside the second th capsule, the first capsule and the second capsule being intended to be interconnected by the communication between the first channel and the second channel, their side opening out of their capsule.

Preferably, the second disposable deformable capsule comprises a second empty buffer zone separated from the second bag by a frangible wall, no cosmetic constituent being in said second buffer zone 22, the second channel opens on one side at the level of the second buffer zone and the other side outside the second capsule.

Thus, the two capsules each have a buffer zone, extensible or not, which has a significant volume relative to the original volume of the pocket, which allows to receive the mixture between the two phases respectively contained in the two pockets of two different capsules.

According to preferred embodiments, the invention comprises one or more of the following features which can be used separately or in partial combination with one another or in total combination with one another of the above-mentioned objects of the invention. .

Preferably, the frangible wall is a welded joint between two walls of the pocket, the rupture of the frangible wall being effected by rupture of the weld and by spacing from each other of the two walls of the pocket previously attached between them, under the pressure of the phase contained in the pocket, in case of mechanical pressure on this pocket.

Thus, are simultaneously improved, on the one hand the simplicity of closure of the closure, by setting up the frangible wall, and on the other hand the cleanliness of the opening of the shutter, by sharpness of the rupture of the welding.

Preferably, at least one of the walls of the buffer zone is extensible, preferably extensible so that the volume of the buffer zone after rupture of said frangible wall, is at least 20% of the volume of the pocket before rupture said frangible wall, preferably at least 30%.

In another embodiment, at least one of the walls of the buffer zone is extensible, preferably extensible so that the volume of the buffer zone after rupture of said frangible wall is between 5% and 30%. of the volume of the pocket before rupture of said frangible wall, before the rupture of said frangible wall, said pocket comprises: at least one part of empty and extensible peripheral zone which is in a completely flattened position in which the walls of said part of empty peripheral zone are arranged against each other, at least one central zone which is filled with said predetermined quantity of said phase and which is in a curved position in which the walls of said central zone filled are spaced apart. on the other except at the periphery of said filled central zone. This other embodiment is particularly well suited when the surface of the pistons which presses the capsules to empty them of their contents has a reduced surface. Advantageously, before the rupture of said frangible wall, said pocket comprises: its entire empty peripheral zone which is in a completely flattened position in which the walls of said empty peripheral zone part are arranged one against the other. Advantageously, only one of the walls of the empty peripheral zone is extensible, which is the wall opposite the wall in a curved position, preferably extensible so that the volume of the peripheral zone after rupture of said frangible wall, is at least 10% of the volume of the bag before rupture of said frangible wall, preferably at least 20%.

Thus, the overall volume of the capsule is very small before rupture of the frangible wall, its storage is easier and the risk of contamination are reduced since only part of the increase in the volume of the pocket is related to the extension of the buffer zone by the deformation of a wall of this buffer zone, the remainder of this volume increase coming from the mere presence of the buffer zone by separation of the walls that compose it, regardless of the elasticity of one of its walls; .

Preferably, the ratio between the volume of the bag, before rupture of the frangible wall without the volume of the buffer zone, and the volume of the pocket, after rupture of the frangible wall with the volume of the potentially extended buffer zone, is between 20% and 80%, preferably between 30% and 70%.

The buffer zone, extensible or not, has a significant volume relative to the original volume of the bag, which allows to receive the mixture between the two phases respectively contained in the two pockets of two different capsules.

Preferably, said frangible wall is a weld weaker than the outer weld of the pocket and the outer weld of the buffer zone.

Thus, the rupture of the frangible wall can be performed safely, without the risk of piercing the capsule with a flow of a cosmetic product phase outside the capsule.

The preferred forms of the pocket and the buffer zone that will now be presented, contribute to optimize more and more the ratio between volume offered for content and volume occupied for congestion. Preferably, the pocket has, in the plane of the flattening of the pocket, a generally convex shape, the buffer zone has, in the plane of the flattening of the pocket, a general concave shape complementary to the general convex shape of the pocket. Preferably, the assembly constituted by the pocket and the buffer zone has, in the plane of the flattening of the pocket, a generally convex shape. Preferably, the pocket has, in the plane of the flattening of the pocket, a generally circular shape, the buffer zone has, in the plane of the flattening of the pocket, a general U shape to the branches which are refined towards their ends.

Preferably, each pocket is flattened, one of its two faces being flat, the other of its two faces being curved at least in part and flexible so as to allow the expulsion of the contents of the pocket by mechanical pressure on it .

Thus, the simplicity of use is improved. On the one hand, the flat face of the pocket allows a simple and homogeneous heating of each of the capsules. On the other hand, the convex and flexible face of the pocket allows a simple way to completely expel the contents of the pocket out of this pocket, by simple mechanical pressure on the pocket of the capsule.

Preferably, said channel is of constant section over most of its length, preferably over its entire length.

Thus, the coupling of the acceleration of the mixture during the crossing of the channel with the pressure drop that accompanies it, followed by a deceleration of the mixture with the pressure rise that accompanies it, promotes the shearing of the mixture after this crossing, and therefore improves the homogenization of this mixture between the contents of the pockets of two separate capsules.

Preferably, said constant-section channel portion has a section of between 0.5 and 3 mm, preferably between 1 and 2 mm.

Thus, this low channel section value accelerates the mixing through the channel and reduces its pressure, thereby improving the shear of the mixture exiting the channel, shearing which, becoming more important, improves the homogenization of the mixture between the contents of the pockets. two separate capsules.

Preferably, said channel has a size or diameter that is at most 20% of the size or diameter of the pocket, preferably at most 15%, more preferably at most 12%. Preferably, said channel has a size or diameter that is at least 2% of the size or diameter of the pocket, preferably at least 4%, more preferably at least 8%.

These ratio values between, on the one hand, the size of the channel and, on the other hand, the size of the pocket ensure, on the one hand, a preferential maximum value of the relative shrinkage threshold, making it possible to obtain a particularly advantageous threshold of shear and thus of homogenization and secondly a preferential minimum value of the relative threshold of shrinkage to maintain a passage time advantageously short to effect the transfer of the mixture from one pocket of a capsule to the other pocket of the other capsule.

Preferably, the thickness of the pocket is between 5% and 30% of its length, preferably between 10% and 20% of its length. Preferably, the thickness of the pocket is between 10% and 50% of its width, preferably between 20% and 40% of its width.

These size ratios facilitate the deformation of the capsule pocket, without the need to use a soft or thin material. This deformation then temporarily increases the volume-to-surface ratio of the pocket, which is useful to easily accommodate the entire mixture passing through the channel and arriving in this pocket.

Preferably, said channel-shaped constriction is sufficiently narrow and long enough for a mechanical pressure to be able to transfer the contents of one of said pockets to the other of said pockets, so as to effect a shear of said contents exiting said constriction by channel shape, said shear homogenizing the mixture of said two phases, said homogenized mixture being a cosmetic product directly consumable by the end consumer.

Thus is provided a single-use capsule for manufacturing a cosmetic product, directly consumable by the end consumer, for which the mixture obtained is better homogenized.

Preferably, the channel, formed by the portion of the first channel and the portion of the second channel, with a constant section, has a length of between 0.5 and 10 mm, preferably between 1 and 5 mm, more preferably between 2 and 4 mm.

Thus, this combined effect of acceleration and pressure drop, favoring the shear of the mixture leaving the channel and improving its homogenization, occurs for a longer time, during the crossing time of the channel.

Preferably, said pockets are each sufficiently bulky to contain all said mixture, preferably sufficiently bulky to contain once and a quarter all said mixture, still more preferably sufficiently bulky to contain one and a half times all said mixture. Advantageously, the pockets are deformable but not extensible.

Thus, with each transfer of the mixture from one of the pockets to the other pocket, the entire mixture passes through the channel, and not only the majority or part, thereby reducing the number of transfers required to obtain a level of homogenization given.

Preferably, said first disposable bag comprises a predetermined quantity of an excipient phase of a cosmetic product, said second disposable bag comprises a predetermined quantity of a phase containing active elements of a cosmetic product, said second pocket being advantageously sterilized. The mixture just before use by the end consumer of an excipient phase and a phase containing active elements and the manufacture of an instant-use monodose avoids the addition of preservatives, useless for cosmetic effects, and usually used in conventional cosmetic to allow storage of the conventional cosmetic product over time.

Preferably, said first disposable bag comprises a predetermined amount of a fatty phase of a cosmetic product, said second disposable bag comprises a predetermined quantity of an aqueous phase of a cosmetic product, said second bag being advantageously sterilized. The mixture just before use by the end consumer of a fatty phase and an aqueous phase and the manufacture of an instant-use monodose avoids the addition of preservatives, useless for the cosmetic effects, and usually used in conventional cosmetics for allow storage of the conventional cosmetic product over time.

The fatty phase or the excipient phase directs the type of the skincare base, while the aqueous phase or the phase containing active elements mainly constitutes the active complex.

Preferably, said fatty phase of said cosmetic product may be of different types corresponding to different galenics, and said aqueous phase of said cosmetic product may comprise different groups of active elements corresponding to different skin needs of a final consumer. The different galenics are for example a milk or a cream. Thus, the end consumer, who may just as well be a final consumer, can choose the type of basic care that suits him, regardless of the type of asset complex that suits his skin.

Preferably, the volume of the second bag is larger than the volume of the first bag, preferably larger by at least 20%, still more preferably larger by at least 50%.

Thus, this pair of capsules is adapted to homogenize a mixture even when the volume of the two phases to be mixed together is not the same.

Preferably, the sum of the volumes of the first and second pockets before rupture of the frangible wall without the volume of the first and second buffer zones, remains lower, on the one hand to the volume of the first pocket after rupture of the frangible wall with the volume the first buffer zone possibly extended, and secondly to the volume of the second pocket after breakage of the frangible wall with the volume of the second optionally extended buffer zone.

Thus, the entire mixture between the two phases respectively coming from the two pockets of two different capsules, can be easily received within each of the two extended pockets of its respective buffer zone. The homogenization of the mixture to obtain the ready-to-use cosmetic product is thus made easier and faster. Other features and advantages of the invention will appear on reading the following description of a preferred embodiment of the invention, given by way of example and with reference to the accompanying drawings.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1A schematically represents a perspective view of an exemplary shuttle associated with a pair of capsules according to one embodiment of the invention.

Figure 1B schematically shows a side view of an exemplary shuttle associated with a pair of capsules according to one embodiment of the invention.

FIG. 2A schematically represents a first step of associating an exemplary shuttle with a pair of capsules according to one embodiment of the invention, which is a step of inserting the pair of capsules into the shuttle.

FIG. 2B schematically represents a second step of associating an exemplary shuttle with a pair of capsules according to one embodiment of the invention, which is a step of placing the couple of capsules in the shuttle.

FIG. 2C schematically represents a third step of associating an example of shuttle with a couple of capsules according to one embodiment of the invention, which is a step of closing the shuttle containing the pair of capsules.

FIG. 2D schematically represents a fourth step of associating an example of shuttle with a couple of capsules according to one embodiment of the invention, which is a step of insertion of the shuttle containing the pair of capsules into the mixer .

FIG. 3A schematically represents an internal view over a first alternative operating phase of the pressing members alternately pressing on one or the other of the capsules contained in the shuttle disposed in the mixer, according to an embodiment of FIG. invention.

FIG. 3B schematically represents an internal view over a second alternative operating phase of the pressing members alternately pressing on one or the other of the capsules contained in the shuttle disposed in the mixer, according to an embodiment of FIG. invention.

FIG. 4A schematically represents a first step of arranging the mixture of the phases respectively originally contained in the two capsules of the pair of capsules according to one embodiment of the invention, which is a step of stopping the mixture previously carried out in the mixer.

FIG. 4B diagrammatically represents a second step of arranging the mixture of the phases respectively originally contained in the two capsules of the pair of capsules according to one embodiment of the invention, which is an extraction step, outside the mixer, of the shuttle containing the mixture.

FIG. 4C diagrammatically represents a third step of arranging the mixture of the phases respectively originally contained in the two capsules of the pair of capsules according to one embodiment of the invention, which is a step of moving away from the shuttle containing the mixing with the mixer.

FIG. 5 schematically represents a step of using the mixture of the phases respectively originally contained in the two capsules of the couple of capsules according to one embodiment of the invention.

FIG. 6 schematically represents a step of evacuating the pair of capsules, according to one embodiment of the invention, outside the shuttle.

FIG. 7A represents a view from above of an example of a couple of capsules, according to one embodiment of the invention, assembled together when they are put in place in the shuttle.

FIG. 7B represents a perspective view of an example of a pair of capsules, according to one embodiment of the invention, assembled together during their installation in the shuttle.

FIG. 7C represents a view from below of an exemplary pair of capsules, according to one embodiment of the invention, assembled together during their placement in the shuttle.

FIG. 8A represents a side view of an exemplary couple of capsules, according to one embodiment of the invention, assembled together during their placement in the shuttle.

Figure 8B shows an enlargement of a partial sectional view along the axis AA of an exemplary pair of capsules of Figure 7A.

Figure 8C shows an enlargement of a partial sectional view along the BB axis of an exemplary pair of capsules of Figure 8A.

DETAILED DESCRIPTION OF THE INVENTION

FIG. 1A schematically represents a perspective view of an exemplary shuttle associated with a pair of capsules according to one embodiment of the invention.

Figure 1B schematically shows a side view of an exemplary shuttle associated with a pair of capsules according to one embodiment of the invention.

A first capsule 1 comprises a first pocket 11 filled with a first phase of a cosmetic product, a male connector 10, an outlet passage 3 terminated by an outlet port 30.

A second capsule 2 comprises a second bag 21 filled with a second phase of a cosmetic product, a female connector 20.

The homogenized mixture of the first phase and the second phase gives the cosmetic product ready for use by the user. This cosmetic product is for example a face cream entirely devoid of preservatives. The first phase is for example an aqueous phase of complex type of active, while the second phase is for example a fatty phase of excipient type.

A shuttle 5 comprises two hulls 51 and 52 articulated in rotation around a hinge 57. The first hull 51 comprises a first passage 53 at its center and a first outlet guide 55 situated opposite the hinge 57. shell 52 comprises a second passage 54 at its center and a second outlet guide 56 situated opposite the hinge 57. The shuttle 5 also comprises a heating plate 4 which is attached at the hinge 57, which is pierced by its center of a hole 40 to be traversed by the male connector 10 fitted into the female connector 20, and which comprises a groove 41 intended to receive the outlet passage 3. In place of the passages 53 and 54, the shells 51 and 52 could simply comprise central flexible portions allowing pressures outside the shuttle 5 to be exerted on the pockets 11 and 21 of the capsules 1 and 2.

When the shuttle 5 opens, the two shells 51 and 52 deviate on the one hand from each other and on the other hand of the heating plate 4, the two capsules 1 and 2 can be introduced from and other of the heating plate 4.

FIG. 2A schematically represents a first step of associating an exemplary shuttle with a pair of capsules according to one embodiment of the invention, which is a step of inserting the pair of capsules into the shuttle.

When the shuttle 5 opens, the two shells 51 and 52 deviate on the one hand from each other and on the other hand of the heating plate 4, the two capsules 1 and 2 can be introduced from and other of the heating plate 4, that is to say respectively on the one hand between the first shell 51 and the heating plate 4 and secondly between the second shell 52 and the heating plate 4. This step insertion of the couple of capsules 1 and 2 in the shuttle 5 is performed manually by the user.

FIG. 2B schematically represents a second step of associating an exemplary shuttle with a pair of capsules according to one embodiment of the invention, which is a step of placing the couple of capsules in the shuttle.

The capsules 1 and 2 are pressed against the heating plate 4, on either side of the heating plate 4. The male connector 10 fits into the female connector 20, the assembly consisting of the male connector 10 and the female connector 20 through the hole 40, the outlet passage 3 being housed in the groove 41, the outlet orifice 30 opening out of the groove 41. This step of setting up the couple of capsules 1 and 2 in the shuttle 5 is performed manually by the user.

FIG. 2C schematically represents a third step of associating an example of shuttle with a couple of capsules according to one embodiment of the invention, which is a step of closing the shuttle containing the pair of capsules.

The shells 51 and 52 are brought closer to one another until they touch and close one on the other, for example by clipping one into the other. When the shuttle 5 containing the pair of capsules 1 and 2 is closed, on the one hand the first pocket 11 passes through the first passage 53 to leave the shuttle 5, on the other hand the second pocket 21 passes through the second passage 54 to exit. of the shuttle 5, and also the outlet passage 3 passes between the guides 55 and 56 to open through its outlet port 30. This closing step of the shuttle 5 containing the couple of capsules 1 and 2 is performed manually by the user .

FIG. 2D schematically represents a fourth step of associating an example of shuttle with a couple of capsules according to one embodiment of the invention, which is a step of insertion of the shuttle containing the pair of capsules into the mixer .

The shuttle 5 is introduced into a mixer 6 whose function will be to mix together the first and second phases respectively contained in the capsules 1 and 2, by homogenizing the mixture, so as to form, for example, an emulsion which will be the cosmetic product final to consume directly and immediately thereafter by the user. The shuttle 5 is introduced into the mixer 6, more precisely into an opening 60 of the mixer 6, the guides 55 and 56 as well as the outlet orifice 30 penetrating first into the opening 60 of the mixer 6, so as to meet accommodating and even fitting into the bottom of the opening 60. The shuttle 5 is pushed into the bottom of the opening 60 so as to fit into the opening 60 and so as to be well held in place in the opening 60 during the entire mixing operation which will take place next. The guides 55 and 56 closed one over the other and pressed against each other when they are in the bottom of the opening 60 of the mixer 6, have the effect of clamping the outlet passage 3 upstream of the outlet orifice 30 so that no phase or no cosmetic product can leave the space constituted by the pair of capsules 1 and 2 and by the communication channel disposed between these capsules 1 and 2, both that the shuttle 5 is closed and arranged against the bottom of the opening 60 of the mixer 6. This is the closing and the pressure of the guides 55 and 56 against each other, when the shuttle 5 is closed and arranged against the bottom of the opening 60 of the mixer 6, which mechanically causes the pinch of the outlet passage 3 upstream of the outlet orifice 30. This insertion step of the shuttle 5 containing the pair of capsules 1 and 2 in the mixer 6 is performed manually by the user.

FIG. 3A schematically represents an internal view over a first alternative operating phase of the pressing members alternately pressing on one or the other of the capsules contained in the shuttle disposed in the mixer, according to an embodiment of FIG. invention.

FIG. 3B schematically represents an internal view over a second alternative operating phase of the pressing members alternately pressing on one or the other of the capsules contained in the shuttle disposed in the mixer, according to an embodiment of FIG. invention.

The mixer 6 receives in its opening 60 the shuttle 5. Opposite the first shell 51, and even more precisely opposite the first pocket 11 opening from the first passage 53, is a first pressure member 61, for example of the piston type or pressure finger type, whose lateral movement (vertical downward in Figure 3A) indicated by a triangular arrow in Figure 3A squeezes the first pocket 11 of the first capsule 1 to empty it of its contents to the second pocket 21 of the second capsule 2 through an intercapsule communication channel not visible in Figure 3A.

Opposite the second shell 52, and even more precisely facing the second pocket 21 opening from the second passage 54, is a second pressure member 62, for example of the piston type or pressure finger type, whose lateral movement (vertical upwards in FIG. 3B) indicated by a triangular arrow in FIG. 3B presses the second pocket 21 of the second capsule 2 to empty it of its contents towards the first pocket 11 of the first capsule 1 through an inter-capsule communication channel not visible in FIG. 3B.

The first pressure member 61 and the second pressure member 62 are integral with an arm 63. On one side of the shuttle 5, an oblong cam 64 bears against the first pressure member 61 so as to push it towards the first shell 51 and to the first pocket 11. On the other side of the shuttle 5, a spring 66 in compression bears against the second pressure member 62 so as to push it towards the second shell 52 and the second pocket 21 The reciprocating lateral pressure movements of the pressure members 61 and 62 on their respective capsules 1 and 2 are caused by the rotation about an axis of rotation 65, in the direction of the circular deflection, of the oblong cam 64.

When the oblong cam 64 has its small dimension parallel to the mean plane of the shuttle 5, the oblong cam 64 presses on the first pressing member 61 which presses the first pocket 11 to empty its contents into the second pocket 21 through an inter-capsule communication channel not visible in FIGS. 3A and 3B. The arm 63 shifts on one side of the shuttle 5, moving away from the shuttle 5 the second pressure member 62 which compresses the spring 66.

When the oblong cam 64 has its large dimension parallel to the mean plane of the shuttle 5, the spring 66 expands and pushes the second pressure member 62 which presses the second pocket 21 to empty its contents in the first pocket 11 through an inter-capsule communication channel not visible in FIGS. 3A and 3B. The arm 63 shifts to the other side of the shuttle 5, moving away from the shuttle 5 the second pressure member 62 which abuts against the oblong cam 64.

During a complete revolution of the oblong cam 64, the arm 63 has moved back and forth in translation, the first pressure member 61 has first pressed once the first pocket 11 of the first capsule 1 to empty its contents to the second pocket 21 of the second capsule 2, the second pressure member 62 then pressed once the second pocket 21 of the second capsule 2 to empty its contents to the first pocket 11 of the first capsule 1, and the spring 66 compressed once first and then relaxed once afterwards. This cycle is repeated between 2 and 15 times, preferably between 5 and 10 times, until the mixture between the two phases is well homogenized, for example well emulsified, so as to form a homogeneous cosmetic product, for example a emulsion, ready to use directly and immediately by the user, the user applying for example on the skin of his face facial cream thus obtained, natural and fresh, without preservatives, since the mixture between phases has been achieved just before use.

FIG. 4A schematically represents a first step of arranging the mixture of the phases respectively originally contained in the two capsules of the pair of capsules according to one embodiment of the invention, which is a step of stopping the mixture previously carried out in the mixer. Once well homogenized mixing between the two phases respectively from the two capsules 1 and 2, the pressure members 61 and 62 stop their movement relative to the shuttle 5.

FIG. 4B diagrammatically represents a second step of arranging the mixture of the phases respectively originally contained in the two capsules of the pair of capsules according to one embodiment of the invention, which is an extraction step, outside the mixer, of the shuttle containing the mixture. The hand 7 of a user removes the shuttle 5 from the opening 60 of the mixer 6. The removal of the shuttle 5 from the opening 60 of the mixer 6 mechanically releases the pinch of the outlet orifice 30 by the guides 55 and 56 of hulls 51 and 52.

FIG. 4C diagrammatically represents a third step of arranging the mixture of the phases respectively originally contained in the two capsules of the pair of capsules according to one embodiment of the invention, which is a step of moving away from the shuttle containing the mixing with the mixer. The hand 7 of a user moves the shuttle 5 away from the mixer 6, to then be able to use the cosmetic product contained in the shuttle 5, this cosmetic product being the homogenized mixture of the two phases respectively contained originally in the two capsules 1 and 2.

FIG. 5 schematically represents a step of using the mixture of the phases respectively originally contained in the two capsules of the couple of capsules according to one embodiment of the invention.

The hand 7 of the user, more precisely one or more of his fingers 70, for example his thumb, presses on each side of the shuttle 5, simultaneously at the passages 53 and 54 of the hulls 51 and 52, on the pockets 11. and 12 capsules 1 and 2, to leave the homogenized mixture constituting the cosmetic product 8 ready for use by the outlet orifice 30 which is no longer pinched. This cosmetic product 8 ready to use out through the outlet port 30 to fall by gravity on the fingers 72 of the other hand 71 of the user ready to receive this cosmetic product 8. The user with this product cosmetic 8 in his hand 71 can use it directly and immediately, for example spreading the care cream 8 on his face with his hand 71.

FIG. 6 schematically represents a step of evacuating the pair of capsules, according to one embodiment of the invention, outside the shuttle.

The hulls 51 and 52 have been separated from each other. The user has removed the couple of capsules 1 and 2 outside the shuttle 5, after having detached the heating plate 4 the capsules 1 and 2. The user can then discard this pair of capsules 1 and 2 in a waste receptacle. 73, for example in a bin 73.

FIG. 7A represents a view from above of an example of a couple of capsules, according to one embodiment of the invention, assembled together when they are put in place in the shuttle.

FIG. 7B represents a perspective view of an example of a pair of capsules, according to one embodiment of the invention, assembled together during their installation in the shuttle.

A first capsule 1 comprises a first pouch 11 containing a first phase intended to be mixed with a second phase of a second pouch 21 of a second capsule 2 to give a homogenized mixture, for example an emulsion, forming the cosmetic product ready for use. the job, directly and immediately usable by the user.

The first capsule also comprises a first buffer zone 12. The first pouch 11 is separated from the first buffer zone 12 by a first weak frangible weld 14. The assembly consisting of the first pouch 11 and the first buffer zone 12 is surrounded by a first strong weld 15 significantly stronger than the first weak frangible weld 14.

When the first weak weld 14 will be broken, by a pressure exerted on the first pocket 11, the first phase contained in the first pocket 11 will flow first into the first buffer zone 12 and then into the section 13 of the communication channel inter-capsules which is continued on the one hand by a male connector 10 towards the second capsule 2, and on the other by an outlet passage 3 towards an outlet port 30. The set of reliefs on the first capsule 1 are formed by a thermoformed shell 16. The total length L1 of the first capsule 1 is for example 70.8mm. The length L2 of the outlet passage 3 is for example 18.15 mm. The total width L3 of the first capsule 1 is for example 36.5mm.

The first disposable deformable capsule 1 comprises a predetermined quantity of a first phase of a cosmetic product, and also comprises a first pouch 11 containing this first phase of cosmetic product, an outlet orifice 30 opening out of the first capsule 1, a free channel including the first buffer zone 12, the section 13 and the outlet passage 3, and connecting the first bag 11 to the outlet orifice 30 forming a narrowing along part of its length, a first frangible wall 14 separating the first pocket 11 of this free channel, the entire first phase of cosmetic product filling the entire first pocket 11, the rupture of the first frangible wall 14 leading at least a portion of the first phase of cosmetic product in this channel free, no other frangible wall being located in this free channel between the first pocket 11 and the outlet port 30.

The first disposable deformable capsule 1 comprises a first pouch 11 containing a predetermined quantity of only one of the two phases, the mixture of which forms a ready-to-use cosmetic product, a first empty buffer zone 12 separated from the first pouch 11 by a first frangible wall 14, no cosmetic component being in the first buffer zone 12, a channel portion including on the one hand the section 13 and on the other hand the outlet passage 3 opening on one side at the level of the first buffer zone 12 and on the other side outside the first capsule 1 at the outlet port 30.

Before the rupture of the first frangible wall 14, the first empty buffer zone 12 is in a completely flattened position in which the walls of the first buffer zone 12 are arranged one against the other.

After breaking the first frangible wall 14, the first pocket 11 extends into the first buffer zone 12 and includes it, so as to increase the volume of the first pocket 11 then extended.

Advantageously, the first pocket 11 has, in the plane of the flattening of the first pocket 11, which is also the plane of FIG. 7A, a generally convex shape, and the first buffer zone 12 has, in the plane of the flattening of the first pocket 11, a general concave shape complementary to the generally convex shape of the first pocket 11. The assembly consisting of the first pocket 11 and the first buffer zone 12 has, in the plane of the flattening of the first pocket 11, a convex general shape. The first pocket 11 has, in the plane of the flattening of the first pocket 11, a generally circular shape, and the first buffer zone 12 has, in the plane of the flattening of the first pocket 11, a generally U-shaped branches 121 and 122 which are refined towards their ends.

FIG. 7C represents a view from below of an exemplary pair of capsules, according to one embodiment of the invention, assembled together during their placement in the shuttle.

A second capsule 2 is similar to the first capsule 1. The second capsule 2 comprises a second bag 21 containing a second phase intended to be mixed with the first phase of the first bag 11 of the first capsule 1 to give the homogenized mixture, by example an emulsion, forming the cosmetic product ready for use, directly and immediately usable by the user.

The second capsule also comprises a second buffer zone 22. The second pocket 21 is separated from the second buffer zone 22 by a second weak frangible weld 24. The assembly consisting of the second pocket 21 and the second buffer zone 22 is surrounded by a second strong weld 25 significantly stronger than the second weak frangible weld 24.

When the second weak weld 24 is broken, by a pressure exerted on the second pocket 21, the second phase contained in the second pocket 21 will flow first into the second buffer zone 22 and then into the section 23 of communication channel intercapsules which is continued by a female connector 20 in the direction of the first capsule 1. The set of reliefs on the second capsule 2 are formed by a thermoformed shell 16. The second buffer zone 22 has, in the plane of the flattening of the second pocket 21, a generally U-shaped branches 221 and 222 which are refined towards their ends.

FIG. 8A represents a side view of an exemplary couple of capsules, according to one embodiment of the invention, assembled together during their placement in the shuttle.

The thermoformed shell 16 forms the raised parts of the capsules 1 and 2. A flat film 17 covers the thermoformed shell 16, both at the level of the first capsule 1 and the second capsule 2. The inter-capsule communication channel comprises, a first right-angle bend formed by the section 13 and the male connector 10 fitted into the female connector 20, as well as a second right-angle bend formed by the male connector 10 fitted into the female connector 20 and the section 23. circulation of the mixture between the pockets 11 and 21 follows a path forming the three sides of a rectangle, the first large side comprising the first pocket 11, the first buffer zone 12, the section 13, the second large side comprising the second pocket 21 , the second buffer zone, the section 23, the small side joining the two aforesaid large sides and comprising the male connector 10 fitted into the female connector 20.

The pair of capsules 1 and 2 assembled together respectively comprises two different phases to be mixed to obtain a personalized cosmetic product, and comprises two bags 11 and 21 respectively containing the two different phases and being respectively included in the two capsules 1 and 2 and being connected between them by a communication channel comprising at least one narrowed section portion with respect to the two pockets 11 and 21, this narrowed section portion of the communication channel comprising two right angle bends, the first bend including the channel portions 13 and 10 at right angles to each other, the second bend including the channel portions 23 and 10 at right angles to each other. These two right-angled elbows are arranged such that at least a portion of the narrowed section portion of the communication channel comprising the two right-angled elbows forms the three sides of a rectangle.

Each disposable deformable capsule 1 or 2 comprises an extended pouch 11 and 12 (or 21 and 22) containing a predetermined quantity of only one of the two phases, the mixture of which forms a ready-to-use cosmetic product, a shaped shrinkage. channel opening on one side into the extended pocket 11 and 12 (or 21 and 22) and on the other side to the outside of the capsule 1 or 2. Each extended pocket 11 and 12 (or 21 and 22) is flattened, one of its two faces being flat, the other of its two faces being curved at least in part and flexible so as to allow the expulsion of the contents of the extended pocket 11 and 12 (or 21 and 22) by mechanical pressure on it.

Each extended pocket 11 and 12 (or 21 and 22) comprises two compartments 11 and 12 (or 21 and 22), separated by a frangible wall 14 or 24, the actual pocket 11 or 21 and the adjoining buffer zone 12 or 22 in which the actual pocket 11 or 21 will be able to extend after rupture of the frangible wall 14 or 24. The phase being only in the compartment 11 or 21 where does not open this channel 13 or 23, only this compartment 11 or 21 comprising the phase is curved before rupture of the frangible wall 14 or 24. Thus, this phase will be well preserved, for example during storage, because the frangible wall 14 or 24 separating the two compartments 11 and 12 (or 21 and 22) of the extended bag 11 and 12 (or 21 and 22) allows a vacuum filling and hermetic phase in the pocket 11 and 12 (or 21 and 22) corresponding.

Figure 8B shows an enlargement of a partial sectional view along the axis AA of an exemplary pair of capsules of Figure 7A.

The male connector 10 fits into the female connector 20. The male connector 10 and the female connector 20 are made of rigid plastic.

On the side of the first capsule 1, the male connector 10 has a flange 18 located at its base in a plane perpendicular to the interlocking axis of the male connector 10 in the female connector 20. Inside the male connector 10, the channel narrowed portion 33 makes the fluidic junction between firstly the channel section 13 of the narrowed section belonging to the first capsule 1 and secondly the channel section 23 also narrowed section belonging to the second capsule 2 This flange 18 makes the first elbow at right angles to the inter-capsule communication channel more robust.

On the side of the second capsule 2, the female connector 20 has a flange 28 located at its base in a plane perpendicular to the interlocking axis of the male connector 10 in the female connector 20. Inside the male connector 10, the channel narrowed portion 33 makes the fluidic junction between firstly the channel section 13 of the narrowed section belonging to the first capsule 1 and secondly the channel section 23 also narrowed section belonging to the second capsule 2 This flange 28 makes the second elbow at right angles to the inter-capsule communication channel more robust.

Figure 8C shows an enlargement of a partial sectional view along the BB axis of an exemplary pair of capsules of Figure 8A.

The narrowed section channel section 13, the narrowed channel portion 33, and the narrowed section channel section 23 all have the same narrowed section value.

The width L4 of the section 13 and the section 23 is for example 2.31mm. The outside diameter DI of the flanges 18 and 28 is for example 9.30 mm. The inside diameter D2 of the narrowed channel portion 33 is for example 1.3 mm. The outer diameter D3 of the female connector 20 is for example 5.30 mm. The height H1 of the male connector 10 and the female connector 20 is for example 4.30mm. The height H2 of the section 13 and the section 23 is for example 0.75mm.

Of course, the present invention is not limited to the examples and to the embodiment described and shown, but it is capable of numerous variants accessible to those skilled in the art.

Claims (30)

1) deformable single-use capsule comprising:> a bag (11,21) containing a predetermined quantity of only one of the two phases, the mixture of which forms a ready-to-use cosmetic product,> a buffer zone (12, 22 ) vacuum separated from the bag (11, 21) by a frangible wall (14, 24), no cosmetic constituent being in said buffer zone (12, 22),> a channel (3, 13, 23, 33) opening on one side at the buffer zone (12, 22) and on the other side on the outside of the capsule (1, 2). 2) disposable deformable capsule according to claim 1, characterized in that before the rupture of said frangible wall (14, 24), said empty buffer zone (12, 22) is in a completely flattened position in which the walls ( 16, 17) of said buffer zone (12, 22) are arranged one against the other. 3) A disposable deformable capsule according to claim 1 or 2, characterized in that after the rupture of the frangible wall (14, 24), the pocket (11, 21) extends into the buffer zone (12, 22). ) and encompasses it, so as to increase the volume of the pocket (11,21). 4) deformable single-use capsule according to any one of the preceding claims, characterized in that the frangible wall (14, 24) is a welded joint between two walls (16, 17) of the pocket (11, 21), the rupture of the frangible wall (14, 24) taking place by rupture of the weld and by spacing from one another the two walls (16, 17) of the pocket (11, 21) previously joined together, under the pressure of the phase contained in the pocket (11, 21), in the event of mechanical pressure on this pocket (11,21). 5) deformable disposable capsule according to any one of the preceding claims, characterized in that at least one (17) of the walls (16, 17) of the buffer zone (12, 22) is extensible, preferably expandable so that the volume of the buffer zone (12, 22) after rupture of said frangible wall (14, 24), is at least 20% of the volume of the pocket (11, 21) before rupture of said frangible wall (14, 24), preferably at least 30%. 6) disposable deformable capsule according to any one of claims 1 to 4, characterized in that:> at least one (17) of the walls (16, 17) of the buffer zone (12, 22) is extensible preferably expandable so that the volume of the buffer zone (12, 22) after rupture of said frangible wall (14, 24) is between 5% and 30% of the volume of the pocket (11, 21) before said frangible wall (14, 24) breaks,> before the breakage of said frangible wall (14, 24), said pocket (11, 21) comprises: at least one part of an empty and extensible peripheral zone which is in a completely flattened position in which the walls (16, 17) of said empty peripheral zone portion are disposed against each other, o at least one central zone which is filled with said predetermined quantity of said phase and which is located in a curved position in which the walls (16, 17) of said central zone filled are spaced apart each other except at the periphery of said filled central area. 7) deformable single-use capsule according to claim 6, characterized in that before the breaking of said frangible wall (14, 24), said pocket (11, 21) comprises all its empty peripheral zone which is in a completely flattened position wherein the walls (16, 17) of said empty peripheral area portion are disposed against each other. 8) disposable deformable capsule according to claim 6 or 7, characterized in that only one (17) of the walls (16, 17) of the empty peripheral zone is extensible, which is the wall (17) opposite the wall (16) in curved position, preferably expandable so that the volume of the peripheral zone after rupture of said frangible wall (14, 24) is at least 10% of the volume of the pocket (11, 21) before rupture of said frangible wall (14, 24), preferably at least 20%. 9) disposable deformable capsule according to any one of the preceding claims, characterized in that the ratio between the volume of the pocket (11, 21) before rupture of the frangible wall (14, 24) without the volume of the buffer zone (12, 22), and the volume of the pocket (11, 21), after rupture of the breakable wall (14, 24) with the volume of the buffer zone (12, 22) possibly extended, is between 20 % and 80%, preferably between 30% and 70%. 10) disposable deformable capsule according to any one of the preceding claims, characterized in that said frangible wall (14, 24) is a weld weaker than the outer weld (15, 25) of the pocket (11, 21). and the outer seam (15, 25) of the buffer zone (12, 22). 11) deformable disposable capsule according to any one of the preceding claims, characterized in that the pocket (11, 21) has, in the plane of the flattening of the pocket (11, 21), a generally convex shape, the buffer zone (12, 22) has, in the plane of the flattening of the pocket (11, 21), a generally concave shape complementary to the generally convex shape of the pocket (11, 21). 12) deformable single-use capsule according to claim 11, characterized in that the assembly constituted by the pocket (11, 21) and the buffer zone (12, 22) has, in the plane of the flattening of the pocket (11, 21), a convex general form. 13) Deformable disposable capsule according to claim 11 or 12, characterized in that the pocket (11, 21) has, in the plane of the flattening of the pocket (11, 21), a generally circular shape, the zone buffer (12, 22) has, in the plane of the flattening of the pocket, a generally U-shaped branches (121, 122 and 221, 222) which are refined towards their ends. 14) disposable deformable capsule according to any one of the preceding claims, characterized in that the pocket (11, 21) is flattened, one (17) of its two faces being flat, the other (16) of its two faces being curved at least in part and flexible so as to allow the expulsion of the contents of the pocket (11, 21) by mechanical pressure on it. 15) disposable deformable capsule according to any one of the preceding claims, characterized in that said channel (13, 23, 33) is of constant section over most of its length, preferably over its entire length. 16. The disposable deformable capsule according to claim 15, characterized in that said constant section channel section (13, 23, 33) has a section of between 0.5 and 3 mm, preferably between 1 and 2 mm. 17) disposable deformable capsule according to any one of the preceding claims, characterized in that said channel (13, 23, 33) has a size or a diameter that is at most 20% of the size or diameter of the pocket (11, 21), preferably at most 15%, more preferably at most 12%. 18) disposable deformable capsule according to any one of the preceding claims, characterized in that said channel (13, 23, 33) has a size or a diameter which is at least 2% of the size or diameter of the pocket (11, 21), preferably at least 4%, more preferably at least 8%. 19) Disposable deformable capsule according to any one of the preceding claims, characterized in that the thickness of the pocket (11, 21) is between 5% and 30% of its length, preferably between 10% and 20%. % of its length. 20) disposable deformable capsule according to any one of the preceding claims, characterized in that the thickness of the pocket (11, 21) is between 10% and 50% of its width, preferably between 20% and 40 % of its width. 21) Couple of deformable capsules disposable, each capsule (1, 2) being according to any one of the preceding claims. 22) A couple of disposable deformable capsules comprising: a first disposable deformable capsule (1) comprising: a first pocket (11) containing a predetermined quantity of only one of the two phases, the mixture of which forms a ready-to-use cosmetic product in use, o a first empty buffer zone (12) separated from the first bag by a frangible wall (14), no cosmetic constituent being in said first buffer zone (12), o a first channel (13, 33). ) opening on one side at the first buffer zone (12) and on the other side outside the first capsule (1),> a second single-use deformable capsule (2) comprising: o a second pouch (21) containing a predetermined quantity of the other only of the two phases of which the mixture forms said ready-to-use cosmetic product, o a second channel (23, 33) opening on one side towards the second pouch (21) and on the other hand outside the second capsule (2), the first capsule (1) and the second capsule (2) being intended to be interconnected by the communication between the first channel (13, 33) and the second channel (23, 33), by their side opening out of their capsule (1, 2). 23) A single-use deformable capsule couple, according to claim 22, characterized in that the second single-use deformable capsule (2) comprises a second empty buffer zone (22) separated from the second bag (21) by a frangible wall (24), no cosmetic constituent being in said second buffer zone (22), the second channel (23, 33) opens on one side at the second buffer zone (22) and on the other side at the second outside the second capsule (2). 24) Couple of disposable deformable capsules according to claim 22 or 23, characterized in that the volume of the second pocket (21) is larger than the volume of the first pocket (11), preferably larger than at least 20%, still more preferably greater than 50%. 25) Couple of disposable deformable capsules, according to any one of claims 22 to 24, characterized in that the sum of the volumes of the first (11) and second (21) pockets before rupture of the frangible wall (14, 24 ) without the volume of the first (12) and second (22) buffer zones, remains lower, on the one hand to the volume of the first pocket (11) after rupture of the frangible wall (14) with the volume of the first buffer zone (12) optionally extended, and secondly to the volume of the second pocket (21) after rupture of the breakable wall (24) with the volume of the second buffer zone (22) possibly extended. 26) Couple of disposable deformable capsules according to any one of claims 22 to 25, characterized in that said channel-shaped constriction (13, 23, 33) is sufficiently narrow and long enough for a mechanical pressure can transfer the contents of one of said pockets (11, 21) to the other of said pockets (11, 21), so as to shear said contents exiting said channel-shaped constriction (13, 23, 33), said shear homogenizing the mixture of said two phases, said homogenized mixture being a cosmetic product directly consumable by the end consumer. 27) Couple of disposable deformable capsules according to any one of claims 22 to 26, characterized in that the channel (13, 23, 33) formed by the constant section portion of the first channel (13, 33) and the constant-section portion of the second channel (23, 33) has a length of between 0.5 and 10 mm, preferably between 1 and 5 mm, more preferably between 2 and 4 mm. 28) A couple of disposable deformable capsules according to any one of claims 22 to 27, characterized in that said pockets (11, 21) are each sufficiently large to contain all said mixture, preferably sufficiently large to contain once and quarter all said mixture, still more preferably sufficiently large to contain one and half times all said mixture. 29) A couple of disposable deformable capsules according to any one of claims 22 to 28, characterized in that said first disposable bag (11) comprises a predetermined quantity of an excipient phase of a cosmetic product, said second disposable bag (21) comprises a predetermined quantity of a phase containing active elements of a cosmetic product, said second bag (21) being advantageously sterilized. 30) Couple of disposable deformable capsules according to any one of claims 22 to 29, characterized in that said first pocket (11) disposable comprises a predetermined amount of a fatty phase of a cosmetic product, said second disposable bag (21) comprises a predetermined quantity of an aqueous phase of a cosmetic product, said second bag (21) being advantageously sterilized.