[0001] This invention concerns a dispensing head for a cosmetic composition according to
claim 1. Said dispensing head for a cosmetic composition comprises a duct for preparing
and for distributing the cosmetic composition, able to be connected to at least one
reservoir of at least one cosmetic product, the duct for preparing and for distributing
comprising a distribution nozzle opening outside of the head and a distribution cannula
mounted protruding with respect to the distribution nozzle.
[0002] This head is intended to be mounted on a receptacle containing a cosmetic composition,
in particular a viscous cosmetic composition comprising one or more cosmetic products.
[0003] A cosmetic product is in particular a product as defined in EC Regulation N° 1223/2009
of the European Parliament and the Council of November 30, 2009, relating to cosmetic
products.
[0004] The aforementioned dispensing head can be used in particular for highly viscous cosmetic
compositions (for example with a viscosity greater than 1000 mPa.s).
[0005] This is in particular the case for dyeing compositions that make use of particularly
viscous coloring products. In this type of compositions, the oxidizing cosmetic product
can have a viscosity of about 10,000 mPa.s and the cosmetic coloring product of about
5000 mPa.s.
[0007] The device then comprises a first reservoir containing a first cosmetic product and
a second reservoir containing a second cosmetic product. The cosmetic products are
dispensed simultaneously in a common distribution duct and are ejected through a nozzle
protruding outside of the head.
[0008] In the heads of the aforementioned type, in order to receive the two products simultaneously,
the nozzle has an extended transversal section, for example rectangular or oval.
[0009] To dispense the products simultaneously, in particular in the form of a mixture,
it is often preferable to have a substantially circular orifice for exiting.
[0010] It is generally not possible or extremely difficult to obtain a molded part that
has such a change in section on the distribution nozzle. Moreover, in order to facilitate
or improve the mixture of the two products, it can also be interesting to associate
a mixer with the distribution nozzle.
[0011] These constraints require using an insert introduced into the nozzle in order to
carry out the change in section and possibly supply the mixer.
[0012] Such a solution is not completely satisfactory. The seal of a part of non-circular
section is indeed difficult to guarantee in light of the manufacturing tolerances.
[0013] A purpose of the invention is to obtain a head that authorizes a clean and effective
distribution of a cosmetic product, even when the latter is viscous.
[0014] For this purpose, the invention has for object a head of the aforementioned type,
characterized in that:
the distribution nozzle comprises an external skirt that has an inner passage that
has a first transversal section on a free edge of the external skirt, the distribution
cannula comprising a first portion cooperating with the external skirt, the first
portion having a sealing edge engaged in a sealed manner around the external skirt,
and in that, the distribution cannula comprises a second portion protruding from the
first portion, the second portion defining an inner channel for the delivery of a
product opening at an outlet of the distribution cannula, the inner channel having,
at the outlet of the distribution cannula, a second transversal section different
from the first transversal section.
[0015] Thanks to the introduction on one of external skirt and the first portion of the
cannula of a sealing edge engaged in a sealed manner on the other of the external
skirt and first portion of the cannula, the distribution of a cosmetic composition,
even very viscous, does not cause any leakage of the product. In particular the seal
is indeed provided on the distribution nozzle, even if it is of a transversal section
very different than that of the second portion of the distribution cannula, in particular
of non-circular transversal section.
[0016] According to an alternative, the sealing edge delimits a sealing lip, the sealing
lip covering the entire periphery of the other of the external skirt and of the first
portion of the distribution cannula.
[0017] The presence of a lip covering the entire periphery of the other of the external
skirt and the second portion of the cannula guarantees an optimum sealing at the junction
between the external skirt and the cannula.
[0018] According to an embodiment, the sealing edge defines a peripheral groove for the
insertion of the other of the external skirt and of the first portion.
[0019] The presence of a peripheral groove allows for easy assembly by inserting the other
of the external skirt and second portion of the cannula into the groove provided for
this purpose.
[0020] According to alternatives, the inner channel of the second portion presents a circular
transversal section at the outlet of the distribution cannula.
[0021] According to the invention, the inner passage of the external skirt has, at its free
edge, a non-circular transversal section, in particular an extended transversal section.
[0022] The presence of a cylindrical inner channel guarantees easy distribution in particular
when the distributed composition is a mixture of products. A non-circular transversal
section facilitates the distribution using two separate product reservoirs.
[0023] According to alternatives, the distribution cannula comprises an intermediate part
forming the first portion of the distribution cannula and an insert mounted mobile
with respect to the intermediate part forming the second portion of the distribution
cannula.
[0024] The intermediate part comprises a central body inserted into the external skirt,
the central body delimiting a hole for inserting the insert.
[0025] The cannula formed of an intermediate part and from a removable insert allows for
simple cleaning of the insert, while still offering a satisfactory seal. It allows
for the possible replacing of the insert, according to the desired use.
[0026] According to alternatives, the insert comprises a static mixer.
[0027] The static mixer comprises:
- at least one longitudinal wall able to separate the hole for insertion into a first
region and into a second region, the longitudinal wall defining at least one through-hole
connecting the first region to the second region;
- at least one first element for mixing protruding in the first region;
- at least one second element for mixing protruding in the second region.
[0028] The duct for preparing and distributing is able to be connected simultaneously to
a first reservoir of a first cosmetic product, and to a second reservoir of a second
cosmetic product.
[0029] These characteristics authorize a homogeneous mixture of the cosmetic composition,
in particular when the dispensing head is connected to two reservoirs of two cosmetic
products to be mixed.
[0030] According to an alternative, the first portion is inserted into the external skirt.
[0031] The insertion of the first portion into the external skirt enables an easy assembly
of the head and an easy replacing of the insert.
[0032] According to the invention, the sealing edge is applied in a sealed manner to the
outside of the external skirt.
[0033] The presence of the sealing edge at the outside of the external skirt guarantees
a better sealing between the first portion and the external skirt.
[0034] The invention also relates to a device comprising:
- at least one reservoir of at least one cosmetic product;
- a dispensing head such as defined hereinabove, the duct for preparing and for distribution
being connected to the or to each reservoir.
[0035] The device according to the invention may include one or more of the following features:
The device comprises:
- a first reservoir containing a first cosmetic product;
- a second reservoir containing a second cosmetic product;
- a dispensing head such as defined hereinabove, the duct for preparing and for distribution
being connected simultaneously to the first reservoir and to the second reservoir
[0036] The viscosity of the first cosmetic product is greater than 1000 mPa.s, in particular
greater than 5000 mPa.s.
[0037] The viscosity of the second cosmetic product is greater than 1000 mPa.s, in particular
greater than 10,000 mPa.s.
[0038] The device formed as such uses the same dispensing head for the distribution of a
cosmetic composition formed by mixing a first cosmetic product with a second cosmetic
product.
[0039] The invention will be easier to understand in view of the following description,
provided solely as an example and with reference to the appended drawings, wherein:
- figure 1 shows a first device for the packaging and the distributing of a cosmetic
product, the device comprising a dispensing head according to the invention;
- figure 2 is a side view of the head in figure 1;
- figure 3 is an exploded perspective view of the dispensing head according to the invention;
- figure 4 is a cross-section view of the insert of figure 3 in its mounted position
in the nozzle, the dispensing head comprising an intermediate part and an insert,
- figure 5 is a side view of the insert of figure 3;
- figure 6 is a side view of the stop of the insert of figure 3;
- figure 7 is a top view of the intermediate part of figure 3;
- figure 8 is a front view of the intermediate part of figure 2;
- figure 9 is a cross-section view along plane IX-IX of the intermediate part of figure
7;
- figure 10 is a cross-section view according to a axial mid-plane of the intermediate
part of figure 7.
[0040] Below, the terms "internal" and "external" generally refer to the direction of circulation
of the product or of the cosmetic composition. The term "external" is understood to
mean closer to the outlet of the device while the term "inner" is understood to mean
farther away from this outlet.
[0041] A first device 10 for packaging and dispensing a cosmetic composition obtained by
mixing a first cosmetic product and a second cosmetic product is shown in figures
1 to 9.
[0042] The cosmetic composition is for example a composition for coloring keratin fibers
of a user, in particular the hair of a user.
[0043] The cosmetic composition is carried out using a first cosmetic coloring product and
a second oxidizing cosmetic product. The first cosmetic product and the second cosmetic
product are stored separately in the device 10.
[0044] The first cosmetic product comprises an alkaline agent in a known manner. The alkaline
agent is for example inorganic such as ammonia, or organic such as an organic amine,
or hybrid such as an amine salt. It advantageously comprises at least one coloring
agent such as an oxidation dye precursor, a direct coloring agent or mixtures thereof.
It may contain at least one anionic, nonionic, cationic, amphoteric and/or zwitterionic
surfactant.
[0045] The second cosmetic product contains at least one oxidizing agent, different from
the oxygen in the air, such as hydrogen peroxide. It comprises at least one fat substance.
The term "fat substance" refers to an organic compound insoluble in water at ordinary
temperatures (25°C) and at atmospheric pressure (760 mm of Hg) (solubility less than
5% and preferably 1% and even more preferably 0.1%). The fat substances are chosen
for example from hydrocarbons, oils, fatty alcohols, esters of fatty acid and/or of
fatty alcohols different from triglycerides and plant waxes, non-silicone waxes, silicones,
and mixtures thereof.
[0046] It may contain at least one anionic, nonionic, cationic, amphoteric and/or zwitterionic
surfactant.
[0047] The first cosmetic product and the second cosmetic product are here viscous products.
The first cosmetic product and the second cosmetic product can each have a viscosity
ranging from 1,000 mPa.s to 60,000 mPa.s preferably from 5,000 mPa.s to 40,000 mPa.s.
[0048] For example, the viscosity of the first cosmetic product is in particular between
10,000 mPa.s and 40,000 mPa.s.
[0049] The viscosity of the second cosmetic product is in particular between 5,000 mPa.s
and 15,000 mPa.s.
[0050] The viscosity of the products is measured at 25°C using a Brookfield LVT viscometer
equipped with a mobile M4 rotating at a speed of 12 revolutions per minute. The measurement
is taken after 1 minute.
[0051] In order to form the cosmetic composition, the first cosmetic product and the second
cosmetic product are mixed in the device 10 which distributes the cosmetic product
formed as such.
[0052] In this example, the first cosmetic product and the second cosmetic product are received
respectively in a first reservoir 12 and in a second reservoir 14 of the device 10,
in the form of an aerosol, comprising a propellant gas.
[0053] In an embodiment, the propellant gas is common to the first cosmetic product and
to the second cosmetic product. It is arranged in a space located outside the first
reservoir 12 and outside of the second reservoir 14. Alternatively, the propellant
gas is arranged in each reservoir 12, 14.
[0054] As shown in figure 1 and in figure 2, the device for packaging and for distributing
10 comprises a receptacle 16 receiving the reservoirs 12, 14, and a head 20 for mixing
cosmetic products and for distributing the cosmetic composition, mounted on a neck
18 of the receptacle 16.
[0055] Each reservoir 12, 14 is provided at its upper end with a member 22 for distributing
the product. The distributing member 22 is here a mobile rod that controls the opening
of a valve.
[0056] The displacement of the member for distributing the product 22 authorizes the distribution
of each product from the reservoir 12, 14 outwards.
[0057] In reference to figures 1 to 3, the head 20 for mixing and for distributing comprises
a band 24 for mounting on the neck 18, a diffuser 26 mounted on the band 24, and a
distribution nozzle 28 protruding from the diffuser 26.
[0058] The head 20 further comprises a distribution cannula able to be engaged onto the
distribution nozzle 28. The distribution cannula comprises a first inner portion able
to receive the cosmetic products, and a second external portion able to prepare and
deliver the mixture of cosmetic products.
[0059] In the example shown in figures 1 to 10, the inner and outer portions of the distribution
cannula are mobile with respect to one another. The inner portion of the distribution
cannula is formed by an intermediate part 46. The outer portion of the distribution
cannula is formed by an insert 30, able to be removably mounted on the intermediate
part 46.
[0060] The head 20 comprises in this case a blocking mechanism 32 in position of the insert
30 on the intermediate part 46, which can be seen in figure 3.
[0061] The diffuser 26 comprises a cover 34 assembled on the band 24, a duct 36 for preparing
and distributing the cosmetic composition, and at least one mobile member 38 for actuating
the mixture and the distribution.
[0062] The duct for preparing 36 comprises a first upstream section 40, mounted on the distributing
member 22 of the first reservoir 12, a second upstream section 42, mounted on the
distributing member 22 of the second reservoir 14, with the distribution nozzle 28
connected to the upstream sections 40, 42. The distribution nozzle 28 protrudes partially
outside of the cover 34.
[0063] The mobile member 38 for actuating is able to displace the first upstream section
40 and the second upstream section 42 in order to simultaneously actuate the distributing
member 22 of the first reservoir 12 and the distributing member 22 of the second reservoir
14.
[0064] In reference to figure 3, the distribution nozzle 28 here comprises an external skirt
44. The external skirt 44 defines an inner passage with a non-circular transversal
section. It protrudes outside of the cover 34 to a free edge 48, along an axis A-A'
of insertion of the insert 30.
[0065] In this example, the first transversal section of the inner of the external skirt
44, taken on the free edge 48 is extended horizontally. This section here is oval,
with its largest dimension oriented horizontally.
[0066] In reference to figure 7, the intermediate part 46 comprises a central body 50 inserted
into the external skirt 44 along the axis of insertion A-A' and an outer transversal
plate 52 protruding circumferentially from the central body 50 on an external end
of the central body 50.
[0067] In reference to figures 8 to 10, the central body 50 interiorly defines a central
insertion hole 54, of circular transversal section and of axis A-A'. The central body
50 further has two lateral blind holes 55A, 55B, located on either side of the hole
54 and intended for the molding of the intermediate part 46.
[0068] As can be seen in figure 7, the central body 50 defines an intermediate segment 56
and two end tabs 58, 60 protruding inwards from the intermediate segment 56.
[0069] The insertion hole 54 opens at its internal end into a collection chamber 62 delimited
by the space located between the tabs 58, 60.
[0070] The collection chamber 62 is connected to the first upstream segment 40 and to the
second upstream segment 42 in order to receive a mixture of the first cosmetic product
and the second cosmetic product.
[0071] The surface area of the transversal section of the passage of the insertion hole
54 taken in a plane perpendicular to the axis of insertion A-A' passing through the
free edge 48 is less than the surface area of the transversal section of the inner
passage of the external skirt 44 in the same plane.
[0072] The insertion hole 54 opens outwards through the transversal plate 52.
[0073] As can be seen in figure 7, the transversal plate 52 has a substantially flat outer
surface. It includes a sealing edge 64 protruding inwards at the periphery of the
outer surface, around the central body 50, at a radial distance from the latter
[0074] The sealing edge 64 is applied in a sealed manner to the outside of the skirt 44.
It defines with the central body 50 a peripheral groove 66 (which can be seen in figure
9) wherein is inserted the free edge 48 of the external skirt 44. It defines a sealing
lip arranged around the free edge 48 of the external skirt 44.
[0075] In reference to figure 5, the insert 30 comprises an internal region that can be
inserted into the insertion hole 54, forming a mixer 68, and an external nozzle 70
intended for the distribution of the composition, protruding from the distribution
nozzle 28 when the insert 30 is in mounted position on the distribution nozzle 28.
[0076] The mixer 68 is a mixer such as described in French patent application no.
15 61 885.
[0077] The mixer 68 of the insert 30 here comprises a longitudinal wall 72 for separating
the insertion hole 54 into two separate regions, a plurality of first elements for
mixing 74 arranged in a first region of the insertion hole 54, on one side of the
longitudinal separation wall 72 and a plurality of second elements for mixing 76 arranged
in a second region of the insertion hole 54 of another side of the longitudinal separation
wall 72.
[0078] The two regions of the insertion hole 54 are delimited respectively by a first face
78 of the longitudinal wall 72 and by a second face 80 of the longitudinal wall 72.
[0079] The longitudinal wall 72 is perforated. It has a plurality of through-holes 81, extending
perpendicularly to the axis A-A' by being spaced longitudinally from one another.
[0080] The through-holes 81 open onto the first face 78 and onto the second face 80 in order
to connect the first region to the second region.
[0081] The first elements for mixing 74 are longitudinally spaced from one another along
the axis A-A'. They are arranged in staggered fashion. They protrude towards the axis
A-A' respectively from a first side and from a second side of the peripheral wall
of the insertion wall towards the axis A-A'. They also protrude separate from the
longitudinal wall 72 from the first face 78.
[0082] In this example, the first elements for mixing 74 are each located facing a through-hole
81.
[0083] Each first element for mixing 74 has a horizontal section in the shape of an L.
[0084] The longitudinal wall 72, the first elements for mixing 74 and the second elements
for mixing 76 as such define in the insertion hole 54 winding paths for the passage
of the mixture formed by the first cosmetic product and by the second cosmetic product.
These paths pass successively over then under the longitudinal wall 72 through the
through-holes 81. They also pass as a zig-zag on either side of the longitudinal wall
72, by being delimited laterally and transversally, respectively against the first
elements for mixing 74 and against the second elements for mixing 76.
[0085] The nozzle 70 of the insert 30 is located at the end of the distribution nozzle 28.
It has an inner channel for delivering the cosmetic product having a circular transversal
section for guiding, for distributing the cosmetic composition obtained by mixing
the first premier cosmetic product with the second cosmetic product.
[0086] The inner channel is connected to the inner passage of the external skirt 44. It
has, at the outlet of the nozzle 70, a second transversal section that is different
from the first transversal section of the distribution passage, taken at the free
edge of the external skirt 44.
[0087] The surface area of the second transversal section is here less than the surface
area of the first transversal section.
[0088] The nozzle 70 of the insert 30 is also provided with two longitudinal grasping members
82 protruding laterally. The grasping members 82 allow a user to apply a movement
of rotation on the insert 30 about the axis A-A'.
[0089] The insert 30 is mounted mobile in translation along the axis A-A' between an unassembled
position arranged at a distance from the distribution nozzle 28 and an intermediate
position inserted into the central hole 54 of the distribution nozzle 28.
[0090] Once in the intermediate position, the insert 30 is mounted mobile in rotation about
the axis A-A' between the intermediate position and the mounted position.
[0091] The blocking mechanism 32 in position comprises at least one stop 86A, 86B carried
by the insert 30 (which can be seen in figure 6) and, for each stop of the insert
30, a complementary stop 88A, 88B carried by the distribution nozzle 28 (which can
be seen in figure 7), able to cooperate with the stop 86A, 86B in the mounted position
on the distribution nozzle 28.
[0092] In this example, the insert 30 has two diametrically opposite stops 86A, 86B. Each
stop 86A, 86B, protrudes radially from an external surface of the nozzle 70 of the
insert 30.
[0093] In reference to figure 6, the stop 86A, 86B comprises an inclined clamping ramp 90,
with increasing height by moving about the axis A-A', and a transverse blocking surface
92 extending from the outer end of the clamping ramp 90, on a given angular sector
about the axis A-A'.
[0094] In this example, as can be seen in figures 7 and 8, the distribution nozzle 28 is
provided with two complementary stops 88A, 88B. Each complementary stop 88A, 88B is
formed by a fixing bracket 94 protruding at a distance from the external surface of
the plate 52 to the axis A-A', with the fixing bracket 94 defining with the external
surface an intermediate space 96 for receiving the stop 86A, 86B.
[0095] The fixing bracket 94 comprises a retaining tongue 98 arranged parallel to the external
surface and a base 100 connecting the tongue 98 to the external surface.
[0096] The tongue 98 protrudes towards the axis A-A' from the base 100. It here has a free
edge with a concave contour corresponding to the contour of the insertion hole 54
(see figure 8).
[0097] The base 100 defines a locking surface 102 located under the tongue 98 in order to
partially close the intermediate space 96 and block in rotation the stop 86A, 86B
of the insert 30, when the stop 86A, 86B is inserted into the intermediate space 96.
[0098] In mounted position, each stop 86A, 86B of the insert 30 cooperates with a complementary
stop 88A, 88B of the distribution nozzle 28, by being inserted into the intermediate
spaces 96, delimited by each one of the two complementary stops 88A, 88B with the
outer plate 52.
[0099] In mounted position, the insert 30 is as such immobile in translation along the axis
of insertion A-A' of the insert 30, in the insertion hole 54 of the intermediate part
46.
[0100] In the intermediate position, each stop 86A, 86B is angularly offset with respect
to the corresponding complementary stop 88A, 88B. The base 30 can be moved in translation
along the axis A-A'.
[0101] The assembly of the device 10 shall now be briefly described
[0102] Initially, the first reservoir 12 and the second reservoir 14 are filled respectively
with the first cosmetic product and with the second cosmetic product in the receptacle
16. The diffuser 26 is placed on the assembly band 24 which is then assembled on the
neck 18.
[0103] During the assembly, the first upstream section 40 and the second upstream section
42 are respectively connected on the distribution members 22 of the first reservoir
12 and of the second reservoir 14.
[0104] The intermediate part 46 is mounted in the external skirt 44, with the free edge
48 of the skirt 40 being inserted in a sealed manner into the peripheral groove 66
of the sealing edge 64.
[0105] A suitable sealing is as such created around the external skirt 44, despite its extended
shape, thanks to the application of the sealing edge 64 on the free edge 48. The free
edge 48 of the external skirt 40 is received between the central body 50 and the sealing
edge 64 of the intermediate part 46.
[0106] The insert 30 is initially in an unassembled position outside of the distribution
nozzle 28. The user grasps it and inserts it into insertion hole 54 of the intermediate
part 46, by displacing it in translation along the axis A-A' to the intermediate position.
Then, the user grasps the grasping members 82 on the nozzle 70 of the insert 30. The
user rotates the insert 30 about the axis of insertion A-A' in order to reach the
mounted position in the distribution nozzle 28.
[0107] During this displacement, each stop of the insert 30 cooperates with a complementary
stop 88A, 88B of the intermediate part 46. Each ramp 90 of a stop 86A, 86B is progressively
inserted into the intermediate space 96 under a tongue 98 of a complementary stop
88A, 88B providing through the cam effect, a pushing of the insert 30 along the axis
A-A' inwards.
[0108] The transversal surface 92 of each stop 86A, 86B is inserted into the intermediate
space 96 and bears under the tongue 98. When the stop 86A, 86B abuts against the blocking
surface 102, the insert 30 is blocked in rotation in one direction and is immobilized
in translation outwards along the axis A-A' via cooperation between each stop 86A,
86B and the corresponding intermediate stop 88A, 88B. The stop 86A, 86B and the intermediate
stop 88A, 88B form a blocking mechanism 32 of the "bayonet" type.
[0109] Moreover, as the insertion hole 54 is of cylindrical shape, like the insert 30, the
seal between the insert 30 and the intermediate part 46 is effective, despite the
horizontally extended shape of the distribution nozzle 28.
[0110] The use of the device 10 shall now be described.
[0111] Initially, the user grasps the receptacle 16 and presses the mobile member 34. The
displacement of the mobile member 34 causes the simultaneous movement of the first
upstream section 40 and of the second upstream section 42 and the activation of the
distribution members 22. This generates the simultaneous distribution of the first
cosmetic product from the first reservoir 12 and of the second cosmetic product from
the second reservoir 14.
[0112] The first cosmetic product and the second cosmetic product rise respectively through
the first upstream section 40 and through the second upstream section 42 in order
to reach the upstream chamber for collection 62. The products are joined together
and penetrate into the insertion hole 54 into which the internal portion of the insert
30 is inserted.
[0113] Inside the insertion hole 54, on the mixer 68 formed by the internal portion of the
insert 30, the flow of the first product and the flow of the second product are each
separated horizontally by the longitudinal wall 72 and are combined on either side
of this wall 72.
[0114] In contact with the first elements for mixing 74 and the second elements for mixing
76, the flows are offset laterally with respect to the axis A-A' and follow a winding
path as a zig-zag until a through-hole 81 is reached.
[0115] During the passage facing each hole 81, a portion of the flow circulating above the
longitudinal wall 72 passes through the hole 81 in order to mix with another portion
of the flow circulating under the longitudinal wall 72.
[0116] Likewise, a portion of the flow circulating under the longitudinal wall 72 passes
through the hole 81 in order to mix with another portion of the flow circulating over
the longitudinal wall 72.
[0117] The flows of cosmetic products therefore follow both a winding horizontal path in
the form of a zig-zag on either side of the longitudinal wall 72 by progressing along
the axis A-A', but also a vertical path perpendicular to the longitudinal wall 72
through the successive through-holes 81.
[0118] The mixture of the first cosmetic product with the second cosmetic product is therefore
particularly effective, in light of the turbulences generated, and this despite the
high viscosities of the of the first cosmetic product and of the second cosmetic product.
[0119] This produces a very homogeneous cosmetic composition, with a weight ratio between
0.25 and 4 preferably between 0.5 and 2, in particular of one for one, which as such
has properties for optimum use. This is obtained without the manual intervention of
the user for mixing the products, with a simple mixer formed by the internal portion
of the insert 30, having the structure defined hereinabove.
[0120] As an example, when the rods of the distribution members 22 have a transversal section
of about 2 mm, the respective output speed of the first cosmetic product and of the
second cosmetic product outside of the reservoirs is about 2 m/s. The Reynolds number
of the first cosmetic product is then about 0.2 for a viscosity of 10,000 mPa.s and
the Reynolds number of the second cosmetic product is about 0.4 for a viscosity of
5,000 mPa.s.
[0121] The global restitution speed is about 0.2 m/s at the output of the distribution nozzle
28. In the absence of a mixer, the flow in the nozzle 28 is purely laminar and no
mixing will take place between the first cosmetic product and the second cosmetic
product.
[0122] The presence of the mixer 68 ensures a very effective mixing, thanks to the winding
displacement in three dimensions in the mixer 68, making it possible to form the composition
and the end of its passage in the insertion hole 54.
[0123] Such an effect is not obtained using simple baffles in two dimensions, or using a
helix devoid of windings.
[0124] Moreover, the presence of the intermediate part 46 provides a seal of the distribution
nozzle 28 thanks on the one hand, to the complementary cooperation between the sealing
edge 64 and the free edge of the external skirt 44 and thanks to the simple shape
of the insertion hole 54 corresponding to the simple shape of the insert 30.
[0125] In addition, in mounted position, the insert 30 is immobilized in translation along
the axis of insertion A-A' in the direction of distribution of the cosmetic composition,
as such avoiding any ejection during the distribution. The distribution of the composition
is therefore highly reliable, even if the viscosity is high.
[0126] After the use, the insert 30 is again displaced in rotation about the axis A-A',
from its mounted position on the distribution nozzle 28, to the intermediate position
in which each stop 86A, 86B is angularly offset from the corresponding complementary
stop 88A, 88B. Then, the insert 30 is extracted in translation along the axis A-A'
outside thereof in order to be removed from the insertion hole 54.
[0127] Once removed, the insert 30 can be cleaned easily, guaranteeing a sustainable use
of the device 10.
[0128] In an alternative, the intermediate part 46 and the insert 30 are assembled permanently
to one another. The insert 30 cannot be removed with respect to the intermediate part
46.
[0129] According to another alternative, the distribution cannula is made of a single piece.
The first portion and the second portion of the distribution cannula are then in a
single piece.
[0130] According to an alternative that does not fall within the scope of the claims, the
sealing edge 64 is carried by the external edge of the external skirt 44. In this
case, the edge 64 is engaged in a sealed manner around the first portion of the distribution
cannula during the engagement of the distribution cannula with the external skirt
44.
[0131] According to another alternative, the external skirt 44 of the distribution nozzle
28 defines an inner passage that has a first circular transversal section, and the
inner channel of the distribution cannula has a second circular transversal section,
with a surface area that is different from the surface area of the first transversal
section.
[0132] This change in section allows for example for a distribution in a sheet of the cosmetic
product.
[0133] Alternatively, the surface area of the first transversal section defined by the inner
passage of the external skirt 44 is less than the surface area of the second transversal
section defined by the internal channel of the distribution channel.
[0134] In all of the embodiments, the use of a distribution cannula having an internal channel
with a transversal section that is different from the transversal section of the internal
passage of the distribution nozzle, performs a transition between the two transversal
sections, by guaranteeing an excellent seal between the cannula and the nozzle.
1. Cosmetic composition dispensing head (20) comprising:
- a duct (36) for preparing and for distributing the cosmetic composition, able to
be connected to at least one reservoir (12, 14) of at least one cosmetic product,
the duct (36) for preparing and for distributing comprising a distribution nozzle
(28) opening outside of the head (20) and a distribution cannula mounted protruding
with respect to the distribution nozzle (28),
wherein the distribution nozzle (28) comprises an external skirt (44) that has an
inner passage having a first transversal section on a free edge (48) of the external
skirt (44), the distribution cannula comprising a first portion cooperating with the
external skirt (44), the first portion having a sealing edge (64) engaged in a sealed
manner around the external skirt,
and wherein, the distribution cannula comprises a second portion protruding from the
first portion, the second portion defining an inner channel for the delivery of a
product, opening at an outlet of the distribution cannula, the inner channel having,
at the outlet of the distribution cannula, a second transversal section different
from the first transversal section,
and wherein the inner passage of the external skirt (44) has, at its free edge (48),
a non-circular transversal section, in particular an extended transversal section.
2. Dispensing head (20), according to claim 1, wherein the sealing edge (64) delimits
a sealing lip, the sealing lip covering the entire periphery of the external skirt
(44).
3. Dispensing head (20), according to any of claims 1 or 2, wherein the sealing edge
(64) defines a peripheral groove (66) for the insertion of the external skirt (44).
4. Dispensing head (20), according to any of the preceding claims, wherein the inner
channel of the second portion presents a circular transversal section at the outlet
of the distribution cannula.
5. Dispensing head (20), according to any of the preceding claims, wherein the distribution
cannula comprises an intermediate part (46) forming the first portion of the distribution
cannula and an insert (30) mounted mobile with respect to the intermediate part (46)
forming the second portion of the distribution cannula.
6. Dispensing head (20), according to claim 5, wherein the intermediate part (46) comprises
a central body (50) inserted into the external skirt (44), the central body (50) delimiting
a hole (54) for inserting the insert (30).
7. Dispensing head (20), according to any of claims 5 or 6, wherein the insert (30) comprises
a static mixer (68).
8. Dispensing head (20), according to claim 6 and 7, wherein the static mixer (68) comprises:
- at least one longitudinal wall (72) able to separate the hole (54) for insertion
(30) into a first region and into a second region, the longitudinal wall (72) defining
at least one through-hole (81) connecting the first region to the second region;
- at least one first element for mixing (74) protruding in the first region;
- at least one second element for mixing (76) protruding in the second region.
9. Dispensing head (20), according to any of the preceding claims, wherein the duct (36)
for preparing and distributing is able to be connected simultaneously to a first reservoir
(12) of a first cosmetic product, and to a second reservoir (14) of a second cosmetic
product.
10. Device (10) for packaging and/or dispensing a cosmetic composition, comprising:
- at least one reservoir (12, 14) of at least one cosmetic product;
- a dispensing head (20) according to any of the preceding claims, the duct (36) for
preparing and for distribution being connected to the or to each reservoir (12, 14).
11. Device (10), according to claim 10, comprising:
- a first reservoir (12) containing a first cosmetic product;
- a second reservoir (14) containing a second cosmetic product;
- the duct (36) for preparing and for distribution being connected simultaneously
to the first reservoir (12) and to the second reservoir (14).
12. Device (10) according to claim 11, wherein the viscosity of the first cosmetic product
is greater than 1000 mPa.s, in particular greater than 5000 mPa.s.
13. Device (10) according to any of claims 11 or 12, wherein the viscosity of the second
cosmetic product is greater than 1000 mPa.s, in particular greater than 10,000 mPa.s.
1. Dosierkopf (20) für kosmetische Mischung, umfassend:
einen Kanal (36) zum Zubereiten und Verteilen der kosmetischen Mischung, welcher mit
mindestens einem Behälter (12, 14) zumindest eines Kosmetikprodukts verbunden werden
kann, wobei der Kanal (36) zum Zubereiten und Verteilen außerhalb des Kopfes (20)
eine Öffnung für eine Verteilerdüse (28) und eine bezogen auf die Verteilerdüse (28)
vorstehend befestigte Verteilerkanüle umfasst,
wobei die Verteilerdüse (28) einen äußeren Mantel (44) umfasst, welcher einen inneren
Durchgang mit einem ersten Querschnitt an einer freien Kante (48) des äußeren Mantels
(44) aufweist, wobei die Verteilerkanüle einen ersten mit dem äußeren Mantel (44)
zusammenwirkenden Abschnitt umfasst, wobei der erste Abschnitt eine dichtend mit dem
äußeren Mantel (44) in Eingriff stehende Dichtkante (64) aufweist,
und wobei die Verteilerkanüle einen vom ersten Abschnitt hervorstehenden zweiten Abschnitt
umfasst, wobei der zweite Abschnitt einen inneren Kanal zur Förderung eines Produkts
definiert, der sich an einem Auslass der Verteilerkanüle öffnet, wobei der innere
Kanal am Auslass der Verteilerkanüle einen vom ersten Querschnitt unterschiedlichen
zweiten Querschnitt aufweist,
wobei der innere Durchgang des äußeren Mantels (44) an seiner freien Kante (48) einen
nicht-kreisförmigen Querschnitt, insbesondere einen gestreckten Querschnitt aufweist.
2. Dosierkopf (20) nach Anspruch 1, wobei die Dichtkante (64) eine Dichtlippe abgrenzt,
wobei die Dichtlippe den gesamten Außenrand des äußeren Mantels (44) abdeckt.
3. Dosierkopf (20) nach einem der Ansprüche 1 oder 2, wobei die Dichtkante (64) eine
umlaufende Nut (66) zum Einsetzen des äußeren Mantels (44) definiert.
4. Dosierkopf (20) nach einem der vorangehenden Ansprüche, wobei der innere Kanal des
zweiten Abschnitts am Auslass der Verteilerkanüle einen kreisförmigen Querschnitt
aufweist.
5. Dosierkopf (20) nach einem der vorangehenden Ansprüche, wobei die Verteilerkanüle
ein den ersten Abschnitt der Verteilerkanüle bildendes Mittelteil (46) und einen beweglich
in Bezug auf das Mittelteil (46) befestigten Einsatz (30), welcher den zweiten Abschnitt
der Verteilerdüse bildet, umfasst.
6. Dosierkopf (20) nach Anspruch 5, wobei das Mittelteil (46) einen in den äußeren Mantel
(44) eingeführten Mittelkörper (50) umfasst, wobei der Mittelkörper (50) eine Öffnung
(54) zum Einsetzen des Einsatzes (30) abgrenzt.
7. Dosierkopf (20) nach einem der Ansprüche 5 oder 6, wobei der Einsatz (30) einen statischen
Mischer (68) umfasst.
8. Dosierkopf (20) nach einem der Ansprüche 6 und 7, wobei der statische Mischer (68)
umfasst:
- mindestens eine Längswand (72), welche in der Lage ist, die Öffnung (54) für den
Einsatz (30) in einen ersten Bereich und in einen zweiten Bereich zu trennen, wobei
die Längswand (72) mindestens ein den ersten Bereich mit dem zweiten Bereich verbindendes
Durchgangsloch (81) definiert;
- mindestens ein erstes Element zum Mischen (74), welches im ersten Bereich vorsteht;
- mindestens ein zweites Element zum Mischen (76), welches im zweiten Bereich vorsteht.
9. Dosierkopf (20) nach einem der vorangehenden Ansprüche, wobei der Kanal (36) zum Zubereiten
und Verteilen gleichzeitig mit einem ersten Behälter (12) eines ersten Kosmetikprodukts
und mit einem zweiten Behälter (14) eines zweiten Kosmetikprodukts verbunden sein
kann.
10. Vorrichtung (10) zum Verpackung und/oder Verteilen einer kosmetischen Mischung, umfassend:
- mindestens einen Behälter (12, 14) zumindest eines kosmetischen Produkts;
- einen Dosierkopf (20) nach einem der vorangehenden Ansprüche, wobei der Kanal (36)
zum Zubereiten und Verteilen mit dem oder jedem Behälter (12, 14) verbunden ist.
11. Vorrichtung (10) nach Anspruch 10, umfassend:
- einen ersten Behälter (12), ein erstes kosmetisches Produkt enthaltend;
- einen zweiten Behälter (14), ein zweites kosmetisches Produkt enthaltend;
- wobei der Kanal (36) zum Zubereiten und Verteilen gleichzeitig mit dem ersten Behälter
(12) und dem zweiten Behälter (14) verbunden ist.
12. Vorrichtung (10) nach Anspruch 11, wobei die Viskosität des ersten kosmetischen Produkts
größer als 1000 mPa·s, insbesondere größer als 5000 mPa·s ist.
13. Vorrichtung (10) nach Anspruch 11 oder 12, wobei die Viskosität des zweiten kosmetischen
Produkts größer als 1000 mPa·s, insbesondere größer als 10.000 mPa·s ist.
1. Tête de distribution de composition cosmétique (20) comprenant :
un conduit (36) pour préparer et pour distribuer la composition cosmétique, pouvant
être raccordé à au moins un réservoir (12, 14) d'au moins un produit cosmétique, le
conduit (36) de préparation et de distribution comprenant une buse de distribution
(28) s'ouvrant à l'extérieur de la tête (20) et une canule de distribution montée
en saillie par rapport à la buse de distribution (28),
dans laquelle la buse de distribution (28) comprend une jupe externe (44) qui a un
passage interne ayant une première section transversale sur un bord libre (48) de
la jupe externe (44), la canule de distribution comprenant une première partie coopérant
avec la jupe externe (44), la première partie ayant un bord d'étanchéité (64) mis
en prise d'une manière étanche autour de la jupe externe (44),
et dans laquelle la canule de distribution comprend une seconde partie faisant saillie
de la première partie, la seconde partie définissant un canal interne pour la distribution
d'un produit, s'ouvrant au niveau d'une sortie de la canule de distribution, le canal
interne ayant, au niveau de la sortie de la canule de distribution, une seconde section
transversale différente de la première section transversale,
et dans laquelle le passage interne de la jupe externe (44) a, au niveau de son bord
libre (48), une section transversale non circulaire, en particulier une section transversale
étendue.
2. Tête de distribution (20) selon la revendication 1, dans laquelle le bord d'étanchéité
(64) délimite une lèvre d'étanchéité, la lèvre d'étanchéité couvrant toute la périphérie
de la jupe externe (44).
3. Tête de distribution (20) selon l'une quelconque des revendications 1 ou 2, dans laquelle
le bord d'étanchéité (64) définit une rainure périphérique (66) pour l'insertion de
la jupe externe (44).
4. Tête de distribution (20) selon l'une quelconque des revendications précédentes, dans
laquelle le canal interne de la seconde partie présente une section transversale circulaire
au niveau de la sortie de la canule de distribution.
5. Tête de distribution (20) selon l'une quelconque des revendications précédentes, dans
laquelle la canule de distribution comprend une partie intermédiaire (46) formant
la première partie de la canule de distribution et un insert (30) monté de manière
mobile par rapport à la partie intermédiaire (46) formant la seconde partie de la
canule de distribution.
6. Tête de distribution (20) selon la revendication 5, dans laquelle la partie intermédiaire
(46) comprend un corps central (50) inséré dans la jupe externe (44), le corps central
(50) délimitant un trou (54) pour insérer l'insert (30).
7. Tête de distribution (20) selon l'une quelconque des revendications 5 ou 6, dans laquelle
l'insert (30) comprend un mélangeur statique (68).
8. Tête de distribution (20) selon les revendications 6 et 7, dans laquelle le mélangeur
statique (68) comprend :
au moins une paroi longitudinale (72) pouvant séparer le trou (54) pour l'insertion
(30) en une première région et en une seconde région, la paroi longitudinale (72)
définissant au moins un trou débouchant (81) raccordant la première région à la seconde
région ;
au moins un premier élément de mélange (74) faisant saillie dans la première région
;
au moins un second élément de mélange (76) faisant saillie dans la seconde région.
9. Tête de distribution (20) selon l'une quelconque des revendications précédentes, dans
laquelle le conduit (36) de préparation et de distribution peut être raccordé simultanément
à un premier réservoir (12) d'un premier produit cosmétique, et à un second réservoir
(14) d'un second produit cosmétique.
10. Dispositif (10) pour emballer et/ou distribuer une composition cosmétique, comprenant
:
au moins un réservoir (12, 14) d'au moins un produit cosmétique ;
une tête de distribution (20) selon l'une quelconque des revendications précédentes,
le conduit (36) de préparation et de distribution étant raccordé au ou à chaque réservoir
(12, 14).
11. Dispositif (10) selon la revendication 10, comprenant :
un premier réservoir (12) contenant un premier produit cosmétique ;
un second réservoir (14) contenant un second produit cosmétique ;
le conduit (36) de préparation et de distribution étant raccordé simultanément au
premier réservoir (12) et au second réservoir (14).
12. Dispositif (10) selon la revendication 11, dans lequel la viscosité du premier produit
cosmétique est supérieure à 1000 mPa.s, en particulier supérieure à 5000 mPa.s.
13. Dispositif (10) selon l'une quelconque des revendications 11 ou 12, dans lequel la
viscosité du second produit cosmétique est supérieure à 1000 mPa.s, en particulier
supérieure à 10000 mPa.s.