Applicator devices for cosmetics, assemblies for applying such products, and methods for manufacturing such devices.

Abstract

The present invention relates to an applicator device 10 for dispensing a fluid or paste-like product. The applicator device 10 comprises a retaining stem 112 and an applicator head 120 positioned at a first end 114 of the retaining stem 112. The applicator head 120 comprises a reserve area 121 for containing a fluid or paste-like product, at least one inlet orifice 122 that is in fluid communication with the reserve area 121, and at least one first coating film 123, which is in fluid communication with the reserve area 121 such that pressing the coating film 123 results in a reduction in the volume of the reserve area 121 and delivery of the product onto the first coating film 123.

Description

Technical Field

[0001] The present invention relates to the application of fluid or pasty cosmetics to keratin fibers and / or skin / mucosal areas, for the treatment and / or dyeing of said keratin fibers or skin, mucosa and / or keratin areas.

[0002] More specifically, the present invention relates to a device or means for applying cosmetics and removing excess cosmetics.

[0003] One subject of the present invention is thereby an application device, an application assembly, and a process for manufacturing such a device.

Background Art

[0004] Applicator devices for fluid or pasty cosmetics are based, depending on the viscosity of the cosmetic to be applied, either on the use of a brush or on the use of microfibers intended to capture the product to be applied (see, for example, US 2021 / 401150 A1 and US 7866906 B2, which describe this combination of capture phenomenon and its associated advantages). While brush applicator devices are relatively well-developed, do not present substantial hygiene problems, and can be adapted to facilitate recycling (see, for example, international patent application WO 2023 / 275581), this is not the case for microfiber-based applicator devices.

[0005] In particular, microfiber-based applicator devices are generally formed from a core and microfibers bonded to this core. However, the use of these three materials, which is rarely compatible with recycling, makes these applicator devices particularly difficult to recycle. Likewise, due to their density and size, microfibers have a relatively high tendency to trap bacteria. As a result, these applicator devices are difficult to clean, which makes them unhygienic.

[0006] To provide an alternative to the use of microfibers, applicator devices based on cores that have been modified or fitted with attachments to form one or more product reservoirs along their length have been developed. This has led to proposals in DE 102006012255 A1 and FR 2868264 B1 to arrange disks along the core, with the spaces between the disks forming product reservoirs. Similarly, in FR 2895887 A1, it has been proposed to provide arches along the core, with them forming product reservoirs. While these various possibilities overcome the drawbacks associated with the use of microfibers, unlike microfibers, these applicator devices do not have product filling and / or dispensing suitable for user needs, thus sacrificing product delivery.

[0007] As a result, there is a need for an applicator device that benefits from optimized product filling and dispensing, similar to that enabled by the use of microfiber, but without the drawbacks associated with such use. [Prior art documents] [Patent Documents]

[0008] [Patent Document 1] US 2021 / 401150 A1 [Patent Document 2] US 7866906 B2 [Patent Document 3] International patent application WO 2023 / 275581 [Patent Document 4] DE 102006012255 A1 [Patent Document 5] FR 2868264 B1 [Patent Document 6] FR 2895887 A1 [Patent Document 7] US 2017 / 130027 A1 [Patent Document 8] EP 3731695 A1 [Patent Document 9] WO 2018 / 122472 A1 [Patent Document 10] FR 3 016 274 A1 [Patent Document 11] EP 1275322 B1 [Patent Document 12] EP1797790 B1 [Patent Document 13] EP 3829388 A1 [Overview of the Initiative] [Problems that the invention aims to solve]

[0009] Thus, the present invention aims to at least partially improve upon the drawbacks pointed out above, and the object of the present invention is to provide properties for dispensing fluid or paste-like products that are similar to those of microfiber-based applicator devices, while avoiding at least some of the drawbacks associated with microfiber-based applicator devices. [Means for solving the problem]

[0010] For this purpose, the present invention provides an applicator device for applying a fluid or paste-like product to keratin fibers, or to the epidermis, mucous membranes and / or a portion of keratin, - Gripping stem and, - An applicator head positioned at the first end of a gripping stem, intended for insertion of a fluid or paste-like product into a reservoir, wherein the reservoir includes an applicator head and an excess removal system intended for the applicator head to pass through when it is withdrawn from the reservoir. This relates to an applicator device that includes [a certain feature]. The applicator head is - The applicator head has at least one first reserve zone intended to contain a fluid or paste-like product when withdrawn from the reservoir, - At least one inlet orifice in fluid communication with the first reserve zone, wherein the inlet orifice is positioned in the portion of the applicator head proximal to the gripping stem such that when the applicator head is withdrawn from the reservoir, the inlet orifice contacts the excess removal system. - At least one first coating film positioned at least partially along the reserve zone, wherein pressure on the coating film, in particular on keratin fibers, or on the epidermis, mucous membranes and / or a portion of keratin, results in a reduction in the volume of the reserve zone and delivery of the fluid or paste-like product stored in the reserve zone through at least one first opening, and the at least one first coating film having at least one first opening that is in fluid communication with the reserve zone. It is equipped with.

[0011] Such applicator devices, like microfiber-based applicators, can have particularly optimized filling of the reservoir formed by the filling zone and good delivery of the product to keratin fibers or to the user's epidermis, mucous membranes, and / or keratinous parts. In detail, such applicator devices enable good filling and retention of the product in the reserve zone through appropriate sizing of the reserve zone and the inlet orifice. This is especially evident when the pressure applied to the inlet orifice by the excess removal system during withdrawal of the applicator head ensures good filling even for “paste-like” products. With respect to delivery, deformation of the first coating film and optional dimensional adaptation of the first opening allow for optimization regardless of the product's fluidity. Thus, unlike alternative applicator devices using microfibers, such applicator devices can provide product coating characteristics similar to those of microfiber-based applicator devices.

[0012] This optimization of the coating properties can also be achieved without such an applicator device having the drawbacks observed with the use of microfibers. In particular, the combination of an inlet orifice, at least one reserve zone, and a first opening is perfectly suitable for enabling cleaning with a suitable fluid, such as an organic solvent or an aqueous solvent, which means that the applicator device according to the invention does not have the hygiene problems inherent to microfibers. Furthermore, as will be detailed later herein, such an applicator device can be made of materials that are compatible in terms of recycling, and does not require a mixture of adhesive and microfibers, which makes recycling particularly complicated as is the case for microfiber-based applicator devices. The applicator device according to the invention can thereby be perfectly adapted to existing recycling processes by selecting suitable materials for the applicator head and the gripping stem.

[0013] With regard to the aforementioned hygiene issues, the present invention also allows at least one of the applicator head and the gripping stem to be made of a material having antibacterial and / or antimicrobial properties. Thereby, at least one of the applicator head and the gripping stem can be made of a thermoplastic material, a thermoplastic or vulcanizable elastomer having antibacterial and / or antimicrobial properties, such as those taught in US 2017 / 130027 A1.

[0014] In an advantageous configuration of the invention, the at least one first opening has a thickness (or height) h aperture that can be adapted to be less than or equal to the capillary rise height for a fluid or pasty product that follows Jurin’s law.

[0015] Due to such features, the design of the applicator device ensures that a fluid or pasty product can reach the surface of the first application film when stored in the reserve zone.

[0016] The applicator head may extend longitudinally from a first end of the gripping stem in the longitudinal direction, and comprises a portion proximal to the gripping stem where an inlet orifice is disposed, and a portion distal to the gripping stem, the distal portion comprising an application film, the inlet orifice defining an opening surface oriented along an opening plane that forms an angle of less than 75°, or even less than 55°, and particularly advantageously less than 45°, with a plane perpendicular to the longitudinal direction.

[0017] Such an arrangement of the at least one inlet orifice allows optimized pressure of a surplus removal system relative to the at least one inlet orifice, thereby enabling particularly efficient filling of the reserve zone with product.

[0018] The proximal portion may comprise at least two inlet orifices, the at least two inlet orifices preferably have at least one of the following configurations: - a configuration in which the at least two inlet orifices are evenly arranged around the longitudinal direction, - a configuration in which the at least two inlet orifices are distributed on an extension of at least one first application film, - a configuration in which the at least two inlet orifices are distributed on a face of the proximal portion opposite to at least one first application film, - a configuration in which at least one of the at least two inlet orifices is on an extension of at least one first application film, and at least one of the at least two inlet orifices is on a face of the proximal portion opposite to an application face, - a configuration in which at least two of the at least two inlet orifices are arranged on both sides of an extension of at least one reserve zone, .

[0019] The use of at least two orifices, and these possible arrangements of said at least two orifices, allows for particularly optimized filling of the reserve zone.

[0020] At least one first coating film may have a plurality of first openings distributed along the first coating film, the first coating film preferably comprising between 1 and 500 first openings, or even between 10 and 120 first openings, or between 20 and 60 first openings.

[0021] Such distribution of the first openings ensures that the fluid or paste-like product is delivered across the entire surface of the first coating film.

[0022] The first coating film may comprise at least one surface structure, which preferably includes at least one structure selected from ribs, grooves, spikes, honeycombs, and ridges.

[0023] Such surface structures enable particularly favorable application of products via the coated surface.

[0024] The reserve zone may comprise at least one spike, which is positioned such that when the first coating film is pressed, the at least one spike protrudes from the first coating film through at least one first opening, and preferably the spike is positioned such that it protrudes from the first coating film through at least one first opening even when there is no pressure on the first coating film.

[0025] Such spikes enable the delivery of a fluid or paste-like product through the first coating film and can optionally contribute to the optimization of the product's application.

[0026] The applicator device may also include a second coating film adjacent to the first coating film, the second coating film having at least one second opening that is in fluid communication with a reserve zone, and pressure on the second coating film, in particular to keratin fibers, or to the epidermis, mucous membranes and / or parts of keratin, results in a reduction in the volume of the reserve zone and delivery of the fluid or paste-like product stored in the reserve zone through at least one second opening, the second coating film forming an angle with the first coating film preferably between 35° and 160°, advantageously between 55° and 140°, and particularly preferably between 80° and 120°, or even equal to 90°.

[0027] Such a second film could optimize the ergonomics of the application device, for example, enabling application to two opposing parts of the user's mucous membrane, namely the lips.

[0028] The applicator device may also include a second coating film positioned at least partially along the reserve zone and opposite the first coating film, having at least one second opening that is in fluid communication with the reserve zone, and pressure on the second coating film, in particular, on keratin fibers, or on the epidermis, mucous membranes and / or portions of keratin, results in a reduction in the volume of the reserve zone and delivery of the fluid or paste-like product stored in the reserve zone through at least one second opening.

[0029] Such a second film can optimize the ergonomics of the application device, for example, enabling application to two opposing parts of the user's mucous membrane, namely the lips.

[0030] The applicator head may be positioned on the opposite side of the first coating film and may have a finishing face shaped to facilitate the spreading of the product applied from the first coating film, the finishing face preferably having at least one surface structure selected from the group comprising ribs, grooves, spikes, honeycombs, and ridges.

[0031] In this way, the user can apply the product from the first coating film and then finish applying the product.

[0032] The applicator head may be shaped to cooperate by fitting onto the first end of the gripping stem. The reserve zone is at least partially defined by the first end after mating.

[0033] Such a configuration ensures a good fit between the applicator head and the gripping stem. Furthermore, in this configuration, the gripping stem can help increase the rigidity of the applicator head.

[0034] The applicator head may be shaped to cooperate by mating with the first end of the gripping stem. The first end is at least partially retracted into the reserve zone after mating.

[0035] The applicator head may have a portion in its proximal portion that is complementary to the first end, so as to enable the applicator head to be assembled at the first end.

[0036] In such a configuration, the applicator head and gripping stem are partially independent of each other.

[0037] The reserve zone is positioned along the reserve zone and may advantageously have at least one side vent opening onto the surface of the applicator head adjacent to the first coating film.

[0038] Such vents allow the applicator head and its reserve zone to be formed by plastic injection molding without the need to close the reserve zone using other elements, such as a first end portion.

[0039] The first coating film is curved and may extend over a longitudinal angular portion of the applicator head at an angle greater than 90°, preferably 120°, or even greater than 180° or 240°, and the coating film may correspond to a longitudinal angular portion of the applicator head that is advantageously equal to 360°, and particularly advantageously to a circular cylindrical wall.

[0040] The present invention also relates to a coating assembly for applying a fluid or paste-like product to keratin fibers, or to the epidermis, mucous membranes and / or a portion of keratin, - The coating device according to the present invention, - A reservoir for a fluid or paste-like product, wherein the applicator head is equipped with an excess removal system intended to pass through it when it is withdrawn from the reservoir and The present invention relates to a coating assembly comprising the above.

[0041] Such assemblies benefit from the advantages associated with the applicator device they possess.

[0042] The present invention also relates to a process for manufacturing an applicator device, comprising the following steps: - Steps to prepare the gripping stem, - A step of preparing and positioning an applicator head so as to be positioned at the first end of a gripping stem, wherein the applicator head is intended to be inserted into a reservoir for a fluid or paste-like product, and the reservoir comprises an excess removal system intended to pass through the applicator head when it is withdrawn from the reservoir. Equipped with, During the steps of preparing and positioning the applicator head, the applicator head is - At least one reserve zone intended to contain a fluid or paste-like product during withdrawal of the applicator head from the reservoir, - At least one inlet orifice communicating with the reserve zone, wherein the inlet orifice is positioned on the portion of the applicator head proximal to the gripping stem such that when the applicator head is withdrawn from the reservoir, the inlet orifice contacts the excess removal system. - At least one first coating film positioned at least partially along the reserve zone and having at least one first opening in fluid communication with the reserve zone, wherein pressure on the coating film, in particular on keratin fibers, or on the epidermis, mucous membranes and / or a portion of keratin, results in a reduction in the volume of the reserve zone and delivery of the fluid or paste-like product stored in the reserve zone through at least one opening. Equipped with, Regarding the process.

[0043] Such a process provides a coating device according to the present invention and benefits from the advantages associated with the coating device.

[0044] During the steps of preparing and positioning the applicator head, the applicator head may be shaped to cooperate by fitting onto the first end of the gripping stem, and the reserve zone, after fitting, is at least partially defined by the first end. The steps of preparing and positioning the applicator head are as follows: - Substeps to prepare the applicator head, - A substep of assembling an applicator head to a first end of a gripping stem by cooperatively fitting the applicator head onto the first end of the gripping stem, wherein the reserve zone is at least partially defined by the first end after fitting. It can be equipped with.

[0045] Through such a process, the reserve zone is formed by the assembly between the applicator head and the gripping stem, thereby allowing the gripping stem to contribute to increasing the rigidity of the applicator head.

[0046] During the steps of preparing and positioning the applicator head, the applicator head may have a portion in its proximal portion that is complementary to the first end, so as to enable the applicator head to be assembled at the first end. The steps of preparing and positioning the applicator head are as follows: - Substeps to prepare the applicator head, - Substeps of assembling the applicator head to the first end of the gripping stem by a part complementary to the first end and It can be equipped with.

[0047] In this way, the applicator head is manufactured separately from the gripping stem, which may result in it having different characteristics from the gripping stem.

[0048] The present invention will be better understood by reading the description of the examples of embodiments, which are given purely as a guide and are not intended to be limiting, with reference to the accompanying drawings. [Brief explanation of the drawing]

[0049] [Figure 1A] This figure shows a product dispensing assembly comprising an applicator device according to a first embodiment of the present invention. [Figure 1B] This figure shows a product dispensing assembly comprising an applicator device according to a first embodiment of the present invention. [Figure 1C] This figure shows a product dispensing assembly comprising an applicator device according to a first embodiment of the present invention. [Figure 2] Figures 1A to 1C illustrate the principle of filling the reserve zone of the applicator head of the applicator device with product. [Figure 3A] Figures 1A to 1C show perspective views of the applicator head of the applicator device. [Figure 3B] Figures 1A to 1C show a perspective view of the longitudinal cross-section of the applicator head of the applicator device. [Figure 4A] Figures 1A to 1C show perspective views of the cap / stem elements of the applicator device. [Figure 4B] Figures 1A to 1C show perspective views of the longitudinal cross-section of the cap / stem element of the applicator device. [Figure 5A] This is a perspective view of the applicator head according to the first modification of the applicator device according to the first embodiment. [Figure 5B] This is a top view of the applicator head according to a first modification of the applicator device according to the first embodiment. [Figure 6] This is an enlarged perspective view of the applicator device, according to the first variation of the first embodiment, showing the assembly between the applicator head and the cap / stem element. [Figure 7A] This is a perspective view of the applicator head according to a second modification of the first embodiment, which includes the applicator head. [Figure 7B] This is a perspective view of a broken section of an applicator head according to a second modification of the first embodiment, which includes the applicator head. [Figure 7C] This is a top view of an applicator head according to a second modification of the first embodiment, which includes the applicator head. [Figure 7D] This is a longitudinal cross-sectional perspective view of a product dispensing assembly according to a second modification of the first embodiment, which includes the applicator head. [Figure 8A]This is a side perspective view of the applicator head of an applicator device according to a second embodiment in which two adjacent coating films are provided. [Figure 8B] This is a rear perspective view of the applicator head of an applicator device according to a second embodiment in which two adjacent coating films are provided. [Figure 8C] This is a side view of the applicator head of an applicator device according to a second embodiment in which two adjacent coating films are provided. [Figure 8D] This is a bottom view of the applicator head of an applicator device according to a second embodiment in which two adjacent coating films are provided. [Figure 9A] This is a side view of the applicator head of the applicator device according to the first modification of the second embodiment. [Figure 9B] This is a side perspective view of the applicator head of the applicator device according to the first modification of the second embodiment. [Figure 9C] This is a rear perspective view of the applicator head of the applicator device according to the first modification of the second embodiment. [Figure 10A] This is a side view of the applicator head of the applicator device according to the second modification of the second embodiment. [Figure 10B] This is a bottom view of the applicator head of the applicator device according to the second modification of the second embodiment. [Figure 10C] This is a side perspective view of the applicator head of the applicator device according to the second modification of the second embodiment. [Figure 10D] This is a lateral perspective view of the longitudinal cross-section of the applicator head of the applicator device according to the second modification of the second embodiment. [Figure 10E] This is a lateral perspective view of the lateral cross-section of the applicator head of the applicator device according to the second modification of the second embodiment. [Figure 11A] This is a side view of the applicator head of an applicator device according to a third modification of the second embodiment. [Figure 11B] This is a side perspective view of the applicator head of the applicator device according to a third variation of the second embodiment. [Figure 12A] This is a side perspective view of the applicator head of the applicator device according to the fourth modification of the second embodiment. [Figure 12B] This is a top view of the applicator head of an applicator device according to the fourth modification of the second embodiment. [Figure 12C] This is a front view of the applicator head of the applicator device according to the fourth modification of the second embodiment. [Figure 13A] This is a top view of the applicator head of the applicator device according to the third embodiment. [Figure 13B] This is a bottom view of the applicator head of the applicator device according to the third embodiment. [Figure 13C] This is a side perspective view of the longitudinal cross-section of the applicator head of the applicator device according to the third embodiment. [Figure 14A] This is a top view of the applicator head of the applicator device according to the fourth embodiment. [Figure 14B] This is a bottom view of the applicator head of the applicator device according to the fourth embodiment. [Figure 14C] This is a side view of the applicator head of the applicator device according to the fourth embodiment. [Figure 14D] This is a side perspective view of the applicator head of the applicator device according to the fourth embodiment. [Figure 14E] This is a rear perspective view of the applicator head of the applicator device according to the fourth embodiment. [Figure 15A] This is a side view of the applicator head of the applicator device according to the fifth embodiment. [Figure 15B] This is a top view of the applicator head of the applicator device according to the fifth embodiment. [Figure 15C]This is a bottom view of the applicator head of the applicator device according to the fifth embodiment. [Figure 15D] This is a longitudinal cross-sectional view of the applicator head of an applicator device according to the fifth embodiment. [Figure 15E] This is a rear view of the applicator head of the applicator device according to the fifth embodiment. [Figure 16A] This is a top view of the applicator head of the applicator device according to the first modification of the fifth embodiment. [Figure 16B] This is a side view of the applicator head of the applicator device according to the first modification of the fifth embodiment. [Figure 16C] This is a longitudinal cross-sectional view of the applicator head of the applicator device according to the first modification of the fifth embodiment. [Figure 16D] This is a rear view of the applicator head of the applicator device according to the first modification of the fifth embodiment. [Figure 17A] This is a side view of the applicator head of the applicator device according to the second modification of the fifth embodiment. [Figure 17B] This is a top view of the applicator head of the applicator device according to the second modification of the fifth embodiment. [Figure 17C] This is a bottom view of the applicator head of the applicator device according to the second modification of the fifth embodiment. [Figure 17D] This is a longitudinal cross-sectional view of the applicator head of the applicator device according to the second modification of the fifth embodiment. [Figure 17E] This is a rear view of the applicator head of the applicator device according to the second modification of the fifth embodiment. [Figure 17F] This is a side perspective view of the applicator head of the applicator device according to the second modification of the fifth embodiment. [Figure 18A]This is a perspective view of the applicator head of an applicator device according to a sixth embodiment, which is particularly suitable for being provided by an additive manufacturing process. [Figure 18B] This is an oblique longitudinal cross-sectional view of the applicator head of an applicator device according to a sixth embodiment, which is particularly preferred to be provided by an additive manufacturing process. [Figure 18C] This is a perspective lateral cross-sectional view of the applicator head of an applicator device according to a sixth embodiment, which is particularly preferred to be provided by an additive manufacturing process. [Figure 19A] This figure shows an example of a coating film that can be used in the context of the present invention and various embodiments of the present invention, in a perspective view. [Figure 19B] This figure shows an example of a coating film that can be used in the context of the present invention and various embodiments of the present invention, in a perspective view. [Figure 20A] This is a perspective view of an applicator device according to a seventh embodiment of the present invention, which has two coating surfaces, one of which corresponds to a circular cylindrical wall and the other to the truncated base of the cylindrical wall. [Figure 20B] This is a side view of an applicator device according to a seventh embodiment of the present invention, which has two coating surfaces, one of which corresponds to a circular cylindrical wall and the other to the truncated base of the cylindrical wall. [Figure 20C] This is a longitudinal cross-sectional view of an applicator device according to a seventh embodiment of the present invention, which has two coating surfaces, one of which corresponds to a circular cylindrical wall and the other to the truncated base of the cylindrical wall. [Figure 21A] Figures 20A to 20C show a front perspective view of the applicator head of the applicator device. [Figure 21B] Figures 20A to 20C show rearward oblique longitudinal cross-sectional views of the applicator head of the applicator device. [Figure 22A] Figures 20A to 20C show enlarged side views of the cap / stem elements of the applicator device. [Figure 22B]Figures 20A to 20C show enlarged perspective views of the cap / stem elements of the applicator device. [Figure 23] This is an enlarged rear perspective view of the applicator device according to a modification of the seventh embodiment in which the first membrane does not contain any structures. [Figure 24A] This is a perspective view of an applicator device according to the eighth embodiment, which has two application surfaces: a first application surface corresponding to the curved longitudinal portion of the applicator head and a second application surface corresponding to its distal end. [Figure 24B] This is a perspective view of an applicator device according to the eighth embodiment, which has two application surfaces: a first application surface corresponding to the curved longitudinal portion of the applicator head and a second application surface corresponding to its distal end. [Figure 25A] Figures 23A and 23B show a rear perspective view of the applicator head of the applicator device. [Figure 25B] Figures 23A and 23B show a front perspective view of the applicator head of the applicator device. [Figure 25C] Figures 23A and 23B show a forward-view longitudinal cross-sectional view of the applicator head of the applicator device. [Modes for carrying out the invention]

[0050] In each figure, equivalent, similar, or related parts are given the same reference number to facilitate transitions from one figure to another.

[0051] The various elements shown in the diagram are not necessarily represented to a uniform scale in order to improve the visibility of the diagram.

[0052] The various possible forms (modifications and embodiments) should be understood as not being mutually exclusive and can be combined with each other.

[0053] Figures 1A to 1C and Figure 2 show an application assembly 1 according to a first embodiment of the present invention for applying a fluid or paste-like product to a user's keratin fibers, or to the epidermis, mucous membranes and / or a portion of keratin, the application assembly 1 comprising an applicator device 10 based on the use of a first application film 123 according to the present invention.

[0054] Such application assembly 1 is particularly intended for the application of fluid or paste-like products, such as cosmetics, to keratin fibers such as eyelashes, body hair, and scalp hair, or to parts of the face, especially to parts of the epidermis, mucous membranes, and / or keratin such as lips, acne, scars, and / or wrinkles, or to parts of the limbs of humans or animals such as fingernails or toenails.

[0055] Such a coating assembly 1 is - Applicator device 10 according to the present invention, - A bottle 20 intended to form a reservoir and contain a fluid or paste-like product, and intended to at least partially accept the applicator device 10, - When the applicator device 10 is partially accepted into the reservoir, the accepted portion passes through the excess removal system 40 located on the neck 21 of the reservoir 20 when it is withdrawn from the reservoir 20. It is equipped with.

[0056] In the context of the present invention, the excess removal system 40 is - A tubular body 42 that is intended to work with the neck 21 of the bottle and may have retaining elements such as a fastener 421 to allow the excess removal system 40 to be held in place at the neck 21, - At least one lip 41 made of a deformable material such as elastomer, which is intended to come into contact with a portion of the applicator device 10 housed in the bottle 20, thereby allowing the removal of excess product taken up by the applicator device 10. It is equipped with.

[0057] Such an excess removal system 40 is common for the application assembly 1 of a fluid or paste-like product, but it can still benefit from advantages already known in the prior art. Thus, according to one possible embodiment of the present invention, the excess removal system 40 conforms to that taught by EP 3731695 A1, thereby comprising a flange that facilitates its attachment to the internal shoulder of the bottle 20. Similarly, the excess removal system 40 can be adapted to have the properties taught in WO 2018 / 122472 A1. In an equivalent manner, this same excess removal system 40 may have a split lip taught by FR 3 016 274 A1. Alternatively, or additionally, the excess removal system may have one of the configurations taught in EP 1275322 B1 and EP 1797790 B1. Needless to say, the configurations of the excess removal system 40 are given only as examples, and other alternative configurations of the excess removal system 40 can be fully conceivable without departing from the context of the present invention.

[0058] According to the present invention, as shown in Figures 3A to 4B, the applicator device 10 according to the first embodiment of the present invention is - A cap / stem element 110 comprising a skirt 111 suitable for cooperating with the neck 21 of the bottle 20, and a stem 112 that is an extension of the skirt 111 and has a first end 114 on the opposite side of the skirt 111, - An applicator head 120 positioned at the first end 114 of a stem 112, intended to be inserted into a bottle 20 of a fluid or paste-like product, wherein the bottle 20 includes an excess removal system 40 intended to pass through the applicator head 120 when it is withdrawn from the bottle 20. It is equipped with.

[0059] As shown in Figures 4A and 4B, the cap / stem element 110, together with a cap that allows the user to grip the liquid or paste-like product in the bottle 20 without needing to touch it, forms a gripping stem. Needless to say, such a combination is particularly advantageous, but the gripping stem according to the present invention may take other forms without departing from the context of the present invention. Thus, according to one possible embodiment of the present invention not shown, the applicator device according to the present invention may take the form of a "brush" in which its gripping stem includes a single stem that can be gripped by a second end opposite to a first end 114. Similarly, in the context of this first embodiment, if the cap / stem element 110 is formed from a single piece and has an integral stem and cap, it is quite conceivable, without departing from the context of the present invention, to provide a stem / cap assembly having a stem and cap assembled together instead of such a cap / stem element 110.

[0060] According to the present invention, as shown in Figures 3A and 3B, the applicator head 120 is - The applicator head 120 has a reserve zone 121 intended to contain a fluid or paste-like product when it is withdrawn from the reservoir 20, - Three inlet orifices 122 that are in fluid communication with the reserve zone 121, and the three inlet orifices 122 are located in the proximal portion of the applicator head 120 relative to the stem 112 such that each inlet orifice 122 contacts the excess removal system 40 when the applicator head 120 is withdrawn from the reservoir 20, - A first coating film 123 having a plurality of first openings 124 positioned at least partially along the reserve zone 121 and in fluid communication with the reserve zone 121, wherein pressure on the coating film 123, in particular on keratin fibers, or on the epidermis, mucous membranes and / or parts of keratin, results in a reduction in the volume of the reserve zone 121 and delivery of the fluid or paste-like product stored in the reserve zone 121 through the first openings 124. It is equipped with.

[0061] More specifically, the applicator head 120 extends longitudinally from the first end 114 of the stem 112.

[0062] The applicator head 120 comprises a portion 120A located proximal to the stem 112 and having three inlet orifices, and a portion 120B located distal to the stem 112. The distal portion 120B comprises a first coating film 123.

[0063] More specifically, the distal portion 120B in this embodiment is in the form of a truncated cone, axially cut along the first coating film 123 and along the wall of the reserve zone 121, which is closed by the first end 114 of the stem 112. The first coating film 123 and the wall of the reserve zone 121 are parallel to each other. As shown in Figure 3B, the wall of the reserve zone 121 is open, allowing closure by the first end 114 when the stem 112 is assembled to the applicator head 120.

[0064] The proximal portion 120A has a filling surface 1221 with three openings, the cross-section of which tapers toward the opposite end of the proximal portion 120A in the direction of the extension of the distal portion 120B and extends to an insert 125 shaped to engage with the stem 112. In this embodiment, the insert 125 has a generally truncated cone shape in its longitudinal cross-section. Correspondingly, to allow the insertion of the insert, the stem 112 has a receiving space 115 near the first end 114 that is complementary to the insert 125. To keep the applicator head 120 and the cap / stem element 110 positioned together, the receiving space 115 and the insert 125 may have complementary retaining elements that allow the insert to be clip-fastened within the receiving space. As an alternative to such clip fastening, the retention of the insert 125 in the receiving space 115 can be achieved by any means known to those skilled in the art, such as pressure fitting, crimping, or bonding. In this first embodiment, assembly by pressure fitting is assumed.

[0065] The filling surface 1221 generally extends along the opening plane, forming an angle of less than 75°, or even less than 55°, and in a particularly advantageous configuration less than 45°, with respect to a plane perpendicular to the longitudinal direction. Since the three inlet orifices 122 are arranged along the filling surface 1221, this same opening plane corresponds to the oriented opening surface defined by each of these inlet orifices 122, similarly for each of those inlet orifices 122.

[0066] Such orientation of the filling surface 1221 and the inlet orifice 122 gives the inlet orifice 122 a particularly preferred arrangement such that when the applicator head 120 is withdrawn from the reservoir, the inlet orifice 122 contacts the excess removal system 40 and its lip 41. In detail, as shown in Figure 2, during this withdrawal, this orientation of the inlet orifice 122 allows the excess removal system 40 to contact the length of the filling surface through the strain of its lip 41, thereby ensuring that the three inlet orifices 122, and thus the reserve zone 121 through which they are fluid-communicated, are filled with the excess fluid or paste-like product picked up by the filling surface during this withdrawal. This thus optimizes the filling of the reserve zone 121.

[0067] In the context of this embodiment, as shown in Figure 3B, the reserve zone 121 extends along the distal portion 120B and over most of its width. This configuration allows the reserve zone 121 to supply the product to the first coating film 123 across its entire surface. As detailed, the reserve zone 121 is defined on the one hand by the first coating film 123 and on the other hand by the first end 114 of the stem 112, the three inlet orifices 122, and the three side walls of the applicator head 120.

[0068] In the context of applying a fluid or paste-like product, the first coating film 123 thereby provides the fluid or paste-like product from the reserve zone 121 through the first opening 124. The first coating film 123 is particularly suitable for deformation such that pressure from the coating film 123 on keratin fibers, or on the epidermis, mucous membranes and / or parts of keratin, results in a reduction in the volume of the reserve zone 121 and delivery of the fluid or paste-like product stored in the reserve zone 121 through the first opening 124. The first coating film 123 extends along the reserve zone 121 and defines the application surface of the applicator head 120.

[0069] As shown in Figure 3A, the first coating film 123 has more than 90 first openings 124. The first openings 124 have hexagonal opening cross-sections and are arranged along the first coating film 123 in a two-dimensional array having a hexagonal grid.

[0070] According to an advantageous possible embodiment of the present invention, the first opening is the capillary rise height h for a fluid or paste-like product according to Juran's law. Jurin Thickness (or height) h less than or equal to h aperture It has the following. Therefore, this thickness is preferably given by the following formula, namely,

number

[0071] Such characteristics ensure that the fluid or paste-like product is designed to easily reach the surface of the first coating film 123 when stored in the reserve zone 121.

[0072] To enable good grip on the applicator device 10 and good pressure of the applicator head 120 onto keratin fibers or the user's epidermis, mucous membranes and / or keratinous tissue, the cap / stem element 110 may be made of a thermoplastic or thermoplastic elastomer material. This ensures good rigidity, functionality, and grip of the stem to the cap. The applicator head 120 preferably has some elasticity to allow strain of the first membrane 123 when pressure is applied to it. The applicator head may be made of a thermoplastic elastomer or vulcanizable elastomer having sufficient Shore hardness (e.g., between 6 Shore A and 72 Shore D) to thus give the applicator head good elastic characteristics.

[0073] As a result, for example, the applicator head 120 can be made from thermoplastic elastomers (TPE), such as unvulcanized olefin thermoplastic elastomer (TPE-O), styrene thermoplastic elastomer (TPE-S), vulcanized olefin thermoplastic elastomer (TPE-V), thermoplastic copolyester COPE (ether-ester block copolymer) (TPE-E), in particular TPC-ET sold under the trademark name Hydrel®, polyurethane thermoplastic elastomer (TPE-U), thermoplastic copolyamide, i.e., PEBA (ether-amide block copolymer) (TPE-A) or thermoplastic ether-ester elastomer (TEEE).

[0074] The cap / stem element 110 may be made from a thermoplastic material such as polypropylene (PP) or polyethylene terephthalate (PET).

[0075] To facilitate the recycling of the applicator device 10, the applicator head and cap / stem elements may be made from materials that are suitable for recycling.

[0076] The expression "suitable for recycling" means that the presence of these materials in the same object does not hinder the recycling of each of them. Thus, according to one example of the present invention, each of the materials for the applicator head and the cap / stem element may be selected from one of the classes of recyclable materials, which are polyethylene terephthalate and polypropylene, and which are known not to hinder the recycling of each other.

[0077] To limit any hygiene issues that may be associated with the applicator device 10 according to the present invention, at least one of the applicator head 120 and the cap / stem element 110 may be made from a material having antimicrobial and / or antimicrobial properties. Thus, at least one of the applicator head and the gripping stem may be made from a thermoplastic material, thermoplastic or vulcanizable elastomer having antimicrobial and / or antimicrobial properties, such as those taught in US 2017 / 130027 A1. For this purpose, the thermoplastic material, thermoplastic or vulcanizable elastomer may contain particulate fillers, such as metal oxide particles, that provide such properties.

[0078] In the context of the present invention, the cap / stem element 110 and the applicator head 120 may be advantageously made from a polymer material that is suitable for recycling, and other elements of the dispensing assembly 1, such as the bottle 20 and the excess removal system 40, may be made from materials that are similarly suitable. In this way, it is not necessary to separate these various elements when the dispensing device 1 is sent for recycling.

[0079] The coating device according to this embodiment involves the following steps, namely: - Steps to prepare the cap / stem element 110, - Steps include preparing and positioning the applicator head 120 so that it is positioned on the first end 114 of the stem 112 of the cap / stem element 110, and It can be manufactured in the context of a manufacturing process that includes the following features.

[0080] In this embodiment, the reserve zone 121 is at least partially defined by the first end 114, and the step of preparing and positioning the applicator head 120 is the following step, namely: - Steps to prepare the applicator head 120, - A step of assembling the applicator head 120 to the first end 114 of the stem 112 by cooperatively fitting the applicator head 120 onto the first end 114 of the stem 112, wherein the reserve zone 121 is at least partially defined by the first end 114 after fitting. It can be equipped with.

[0081] The steps of preparing the cap / stem element 110 and the substep of preparing the applicator head 120 can be carried out, for example, by plastic injection molding. Needless to say, as a variation, at least one of the steps of preparing the cap / stem element 110 and the substep of preparing the applicator head 120 can be carried out by additive manufacturing. Thus, although various embodiments of the present invention have been described taking into account the limitations of plastic injection molding, it should be noted that it is easy for those skilled in the art to modify these embodiments and / or variations to take into account the different limitations of additive manufacturing, as will be described in relation to the sixth embodiment described below.

[0082] Figures 5A and 5B show the applicator head 120, and Figure 6 shows an enlarged view of the coating device 10 according to the first modification of the first embodiment. This coating device 10 according to the first embodiment differs from the coating device 10 according to the first embodiment in that the first coating film 123 has a concave shape, and the number, shape, and arrangement of the first openings 124 are different.

[0083] More specifically, as shown in Figure 5A, the first coating film 123 has a concave shape with a concave shape in the longitudinal direction of the applicator head 120. The first openings 124 are dispersed along the first coating film 123 in a manner equivalent to the configuration shown in the first embodiment. This distribution is generated in the form of three rows of 10 first openings 124, all three of which converge at a point on the extension of the applicator head 120. In the context of this variation, the first openings 124 have a circular cross-section.

[0084] The process for manufacturing the applicator device 10 using this first modified implementation differs from the manufacturing process according to the first embodiment in that, during the substep of preparing the applicator head 120, the first coating film 123 has a concave shape with a concave shape in the longitudinal direction of the applicator head 120, and the first openings 124 have a number, shape, and arrangement corresponding to this modification.

[0085] Figures 7A to 7C show an applicator head 120 in a second variation of the first embodiment, in which the reserve zone is entirely defined by the applicator head 120 without the intervention of the first end 114, and only a single inlet orifice 122 is provided. Thus, the applicator head 120 in the second variation differs from the applicator head 120 in the first embodiment in the configuration of the applicator head 120 for working with the stem 112, since the first end 114 is not involved in defining the reserve zone 121, and also differs in the presence of a single inlet orifice 122.

[0086] As shown in Figures 7A to 7C, since the first end 114 is not involved in defining the reserve zone 121, the insert 125 does not have a flat portion suitable for cooperating with the first end. Thus, according to this modification, the insert 125 has a substantially truncated cone shape so that it can be received by the receiving space 115.

[0087] In the context of this second variant of the first embodiment, it should be noted that the reserve zone 121 has at least two side vents 1211 arranged along the reserve zone 121, which face each other and open onto the surface of the applicator head 120 adjacent to the first coating film 123. Each of the side vents 1211 extends along the reserve zone 121 across the corresponding surface of the applicator head 120. Thus, in this implementation variant, the reserve zone 121 is open on that surface.

[0088] According to this implementation variant, the first end 114 of the cap / stem element 110 does not extend beyond the inlet orifice 122 and does not participate in defining the reserve zone 121.

[0089] In accordance with the principles already described in the context of the present invention, as shown in Figure 7D, the applicator head 120 allows the reserve zone 121 to be filled when it is withdrawn from the bottle 20, which is due in particular to the pressure applied to the filling surface 1221 by the lip 41 of the excess removal system 40, which allows any excess fluid or paste-like product on the filling surface 1221 to enter through a single inlet orifice 122.

[0090] The process for manufacturing the applicator device 10 according to this second implementation variant differs from the manufacturing process according to the first embodiment in that, during the substep of preparing the applicator head, the reserve zone 121 is defined solely by the applicator head 120 and the first end 114 is not involved in defining the reserve zone 121, and the reserve zone 121 has two side vents 1211 positioned along the reserve zone 121 and the first end 114 is not shaped to close the reserve zone 121 during the step of preparing the cap / stem element 110.

[0091] It should be noted that, as a variation of this manufacturing process, using such a configuration of the applicator head 120, the process for manufacturing the coating device 10 can be carried out via a two-material manufacturing technique. According to this possible embodiment, which is not shown, the cap / stem element 110 and the applicator head 120 are manufactured in the following single step, namely: - A step of forming a cap / stem element 110 and an applicator head 120 using a two-material manufacturing technique, wherein the cap / stem element 110 comprises a skirt 111 suitable for cooperating with the neck of a bottle and a stem 112 that is an extension of the skirt and has a first end on the opposite side of the skirt, and the first end 114 and the applicator head 120 are integral, step It can be created inside.

[0092] According to this possible embodiment, the first end 114 can be partially retracted into the applicator head 120 so as to act as a tensioner, thereby allowing adjustment of the stiffness of the applicator head 120.

[0093] In the foregoing and throughout the remainder of this document, the term “two-material manufacturing technique” refers to a technique that enables one or more elements to be manufactured in a single step from at least two materials that are different from each other. These manufacturing techniques include, among other things, co-molding, one-step overmolding, and co-extrusion. It should be noted that, according to the present invention, the materials may be different materials obtained from the same resin having different hardnesses or colors, or from resins belonging to the same class of recyclable materials.

[0094] Figures 8A to 8D show the applicator head 120 of a coating device 10 according to a second embodiment, in which the applicator head 120 also includes a second coating film 123A adjacent to the first coating film 123. Such a coating device 10 differs from the coating device 10 according to the first embodiment in that it includes a second coating film 123A adjacent to the first coating film 123, and that it includes two inlet orifices 122.

[0095] In this second embodiment, as shown in Figure 8B, the first and second coating films 123, 123A both extend along the reserve zone 121 and are adjacent to each other at the longitudinal edge of the applicator head 120. In this embodiment, this longitudinal edge is the central edge that divides the reserve zone 121 into two. More specifically, as shown in Figure 10E in the context of the second variation of this second embodiment, the reserve zone is divided into two parts perpendicular to the edge, one oriented substantially parallel to the first coating film 123 and the other oriented substantially parallel to the second coating film 123A.

[0096] The second coating film 123A forms an angle with the first coating film 123 at its longitudinal edge between 35° and 160°, preferably between 55° and 140°, and particularly preferably between 80° and 120°. As shown in Figure 8A, in this embodiment, the angle between the second coating film 123A and the first coating film 123 is substantially equal to 90°.

[0097] In this embodiment, the applicator head 120 has two inlet orifices 122, one of which is on the extension of one portion of the reserve zone 121 and the other on the extension of the other portion of the reserve zone 121.

[0098] Similar to the first embodiment, the applicator head 120 defines a reserve zone 121 together with the first end 114 of the stem 112. As a result, the applicator head 120 has a rectangular hole on the opposite side of the first and second coating films 123, 123A that is intended to be closed by the first end 114 of the stem 112 when the applicator head 120 is assembled to the cap / stem element 110.

[0099] The process for manufacturing the coating device 10 according to this second embodiment differs from the process for manufacturing the coating device 10 according to this second embodiment in that, during the substep of preparing the applicator head, the applicator head 120 also includes a second coating film 123A adjacent to the first coating film 123 and two inlet orifices 122, and has a filling zone 121 according to this embodiment.

[0100] Figures 9A to 9C show the applicator head 120 of the applicator device 10 according to the first variant of the second embodiment, in which the applicator head 120 has a configuration similar to that described in the context of the second variant of the first embodiment, and the reserve zone is entirely defined by the applicator head 120 without the involvement of the first end 114. Thus, the applicator head 120 according to this first variant of the second embodiment differs from the applicator head 120 according to the second embodiment in its configuration for cooperating with the stem 112, since the first end 114 is not involved in defining the reserve zone 121.

[0101] As a result, as described in relation to Figures 7A to 7D, the reserve zone 121 has two side vents 1211 arranged along the reserve zone 121, which face each other and open onto the surface of the applicator head 120 adjacent to the first and second coating films 123, 123A, respectively. Each of the side vents 1211 extends along the reserve zone 121 across that surface of the applicator head 120. Thus, in this configuration, the reserve zone 121 is open on that surface.

[0102] The process for manufacturing the coating device 10 according to this first variation of the second embodiment differs from the process for manufacturing the coating device 10 according to the second embodiment in that, during the substep of preparing the applicator head 120, the reserve zone 121 is defined solely by the applicator head 120 and the first end 114 is not involved in defining the reserve zone 121, and the reserve zone 121 has two side vents 1211 positioned along the reserve zone 121 and the first end 114 is not shaped to close the reserve zone 121 during the step of preparing the cap / stem element 110.

[0103] Figures 10A to 10E show the applicator head 120 of the coating device 10 in a second variation of the second embodiment, wherein the applicator head 120 is positioned on the opposite side of the first coating film 123 and has a finished surface 126 shaped to facilitate the spreading of the product coated from the first and second coating films 123, 123A. This second variation of the coating device 10 in the second embodiment differs from the first variation of the coating device 10 in the second embodiment in that the applicator head 120 has a finished surface 126.

[0104] As a result, in this variant, the finished surface 126 has a surface structure selected from the group comprising ribs, grooves, spikes 126A, honeycomb, and ridges. As shown in Figure 10B, according to this variant, the finished surface 126 comprises spikes 126A. Advantageously, depending on the intended application of the fluid or paste-like product, the application surface may be suitable for the part of the user to which the fluid or paste-like product is intended to be applied. Consequently, the finished surface 126 is curved.

[0105] The process for manufacturing the coating device 10 according to this second modification of the second embodiment differs from the process for manufacturing the coating device 10 according to the first modification of the second embodiment in that, during a substep of preparing the applicator head 120, the applicator head 120 is provided with a finishing surface 126 located on the opposite side of the first coating film 123.

[0106] Figures 11A and 11B show the applicator head 120 of the coating device 10 in a third variation of the second embodiment, in which the applicator head 120 has a finishing surface 126 located opposite the first coating film 123 and, in this case, has first circular openings 124, 124A. Thus, this third variation of the coating device 10 of the second embodiment differs from the second variation of the coating device 10 of the second embodiment in that the first and second coating films 123, 123A have circular openings 124, 124A.

[0107] The process for manufacturing the coating device 10 according to this third modification of the second embodiment differs from the process for manufacturing the coating device 10 according to the second modification of the second embodiment, in that, during a substep of preparing the applicator head 120, the applicator head 120 is provided with first circular openings 124, 124A.

[0108] Figures 12A to 12C show the applicator head 120 of the coating device 10 according to the fourth modification of the second embodiment, in which the first and second coating films 123 and 123A each comprise a surface structure, in this case, a spike 127. Thus, this fourth modification of the coating device 10 according to the second embodiment differs from the third modification of the coating device 10 according to the second embodiment in that the first and second coating films 123 and 123A each comprise a surface structure.

[0109] As a result, as shown in Figure 12A, each of the first and second coating films 123, 123A is provided with spikes 127 arranged along their surfaces. More specifically, the spikes are arranged in each of the coating films 123, 123A as five rows between the first openings 124, 124A.

[0110] Needless to say, as will be discussed below, particularly in relation to Figures 14A to 14E, as a variation, either the first or second film 123, 123A may comprise another type of surface structure without departing from the context of the present invention. More generally, at least one of the first and second films 123, 123A may comprise at least one surface structure selected from ribs, grooves, spikes, honeycombs, and ridges.

[0111] The process for manufacturing the coating device 10 according to this fourth variation of the second embodiment differs from the process for manufacturing the coating device 10 according to the third variation of the second embodiment in that, during the substep of preparing the applicator head 120, the applicator head 120 is prepared such that each of its first and second coating films 123, 123A is provided with spikes 127 as surface structures.

[0112] Figures 13A to 13C show the applicator head 120 of the coating device 10 according to a third embodiment, in which the first film is provided with a first oval opening 124 and the inlet orifice 122 is located on the coating surface 1221 of the applicator head 120 opposite the first coating film 123. The coating device 10 according to this third embodiment differs from the coating device 10 according to the first embodiment in that the first coating film 123 is provided with a first oval opening 124, the inlet orifice 122 is located on the surface of the applicator head 120 opposite the first coating film 123, and the reserve zone 121 is defined solely by the applicator head 120 without the involvement of the first end 114 (therefore the applicator head 120 is provided with a vent not shown).

[0113] As can be seen in Figure 13A, the first openings are in the form of parallel oval openings (or longitudinal grooves). These first openings 124 are positioned obliquely to the longitudinal direction, forming an angle of 60° with respect to this same longitudinal direction.

[0114] Furthermore, the inlet orifice 122 is positioned on the extension of the plane of the distal portion 120B of the applicator head 120, opposite the first coating film 123. According to the principle of the present invention, as shown in Figure 13C, the two inlet orifices 122 are positioned to be in fluid communication with the reserve zone 121.

[0115] In a manner equivalent to that of the second variation of the first embodiment, the insert 125 is truncated cone-shaped and has no flat sections.

[0116] The process for manufacturing the coating device 10 according to this third embodiment differs from the coating device 10 in the second variant of the first embodiment in that, during the substep of preparing the applicator head 120, the first opening 124 is oval-shaped and the two inlet openings 122 are positioned on the extension of the filling surface 1221 of the distal portion 120B of the applicator head 12, opposite the first coating film 123.

[0117] Figures 14A to 14E show the applicator head 120 of a coating device 10 according to a fourth embodiment, in which the applicator head 120 is provided with first and second coating films 123, 123A facing each other, and the first coating film 123 has a surface structure. The coating device 10 according to the fourth embodiment differs from the coating device 10 according to the second modification of the first embodiment in that the applicator head 120 is provided with first and second coating films 123, 123A facing each other, and the first coating film 123 has a surface structure, and the applicator head 120 is provided with four inlet orifices that extend along the four faces of the proximal portion 120A of the applicator head 120.

[0118] The first coating film 123, as shown in Figure 14A, is provided with a surface structure in the form of grooves 127A, comprising three rows of 17 first circular openings 124 that are parallel to each other. The grooves are perpendicular to the rows of 17 first openings 124 for the first portion of the grooves, each of these grooves crosses the first openings 124, and for other portions of the grooves, they are oriented at a 45° angle to the three rows of 17 first openings 124.

[0119] The second coating film 123A has a similar form to that of the first coating film 123 on the applicator head 120 of the coating device 10 according to the third embodiment.

[0120] As shown in Figures 14A to 14E, the proximal portion 120A of the applicator head 120 is provided with four inlet orifices 122 that converge in the reserve zone 121. In this way, two of these inlet orifices 122 are positioned on the extensions of the first and second coating films 123, 123A, respectively, and the two other inlet orifices 122 are positioned on the extensions of the opening 1211 of the reserve zone 121.

[0121] The process for manufacturing the coating device 10 according to this fourth embodiment includes a substep of preparing the applicator head, - The first coating film 123 has the arrangement of the surface structure and the first opening described above. - The applicator head 120 also includes a second coating film 123A having the form of the first coating film 123 according to the third embodiment, and - Four inlet orifices 122 are distributed around the proximal portion 120A of the applicator head 120. In this respect, it differs from the coating device 10 according to the third embodiment.

[0122] Figures 15A to 15E show the applicator head 120 of a coating device 10 according to a fifth embodiment of the present invention, wherein the first film 123 has a surface structure and is positioned recessed relative to the rest of the applicator head 120. Thus, the coating device 10 according to the fifth embodiment differs from the device according to the third embodiment in that the configuration of the first coating film 123 differs and the applicator head 120 has four inlet orifices 122 on the extension of the first coating film 123.

[0123] Thus, according to this fifth embodiment, the first film 123 is positioned recessed relative to the rest of the applicator head 120 and includes spikes 127. The spikes 127 are shaped to be flush with the rest of the applicator head 120 so as to allow the coating film 123 to be pressed by the spikes 127. The first coating film 123 also has first openings 124 positioned along the centerline of the applicator head 120. In this context of the positioning of the first openings 124, each opening 124 is separated from preceding openings along the centerline by its respective spike 127.

[0124] The process for manufacturing the coating device 10 according to this fifth embodiment differs from the process for manufacturing the coating device 10 according to this third embodiment in that, during a substep of preparing the applicator head 120, the first coating film 123 is positioned recessed relative to the rest of the applicator head 120, having the configuration according to this fourth embodiment, and the applicator head 120 is provided with four inlet orifices 122 on the extension of the first coating film 123.

[0125] Figures 16A to 16D show the applicator head 120 of a coating device 10 according to a first variation of a fifth embodiment of the present invention, wherein the applicator head 120 comprises a second coating film 123A having a similar configuration to the first coating film 123, on the opposite side of the first coating film 123. Thus, the coating device 10 according to this first variation of the fifth embodiment differs from the coating device 10 according to the fifth embodiment in that it has a second coating film 123A and that the applicator head 120 has only two inlet orifices 122 instead of four on the extension of the first coating film 123.

[0126] The second coating film 123A has the same configuration as the first coating film 123, and thus includes spikes 127 that are shaped to be flush with the rest of the applicator head 120.

[0127] The applicator device 10 according to this first variant of the fifth embodiment may be manufactured using a different manufacturing process than the process for manufacturing the applicator device 10 according to the fifth embodiment, in that during the step of preparing the applicator head 120, it is provided with a second coating film 123A according to this variant of the fifth embodiment and has only four inlet orifices 122.

[0128] Figures 17A to 17F show the applicator head 120 of the coating device 10 in a second variation of the fifth embodiment, wherein the reserve zone 121 is provided with spikes 1217 for each first opening, the spikes 1217 being positioned to protrude from the first coating film 123, 123A through at least one first opening 124 (second opening 124A) when the first coating film 123 (second coating film 123A) is pressed. More specifically, as shown in Figure 17D, each of the spikes in the reserve zone 121 is positioned to protrude from the first coating film 123 through the corresponding first opening 124 even when the first coating film 123 is not pressed. In detail, it can be seen in Figure 17D that the spikes 1217 are flush with the first coating film 123, and their tops are aligned with the tops of the spikes 127 of the first film 123. Thus, the coating device 10 according to this second modification of the fifth embodiment differs from the coating device 10 according to the fifth embodiment in that the reserve zone 121 is provided with spikes 1217 for each first opening, and the spikes 1217 are arranged to protrude from the first coating film 123 (second coating film 123A) through at least one first opening 124 (second opening 124A) when the first coating film 123 (second film 123A) is pressed.

[0129] In the context of this fifth embodiment and its variations, the spikes 127 of the first coating film 123 and any second coating film 123A may be functionalized to facilitate the application of fluid or paste-like products. For example, as in the case of this second variation of the fifth embodiment shown in Figures 17E and 17F, the spikes 127 of the first coating film 123 may have one or more secondary extensions 1271, as taught in EP 3829388 A1 with reference to Figures 23–34c. This provides reference to EP 3829388 A1 and to the portions of Figures 23–34c relating to the spikes, as presented in paragraphs

[35] –

[42] , the contents of which are incorporated by reference herein.

[0130] The applicator device 10 according to this second variation of the fifth embodiment may be manufactured via a different manufacturing process than that for manufacturing the applicator device 10 according to the fifth embodiment, in that during the step of preparing the applicator head 120, the reserve zone 121 is provided with spikes 1217 for each first opening, and the spikes 1217 are positioned to protrude from the first coating film 123 (second film 123A) through at least one first opening 124 (second opening 124A) when the first coating film 123, 123A is pressed.

[0131] Needless to say, as already stated above, the applicator device 10 in the five embodiments described above and their various variations is designed so that the cap / stem assembly 110 and the applicator head 120 can be manufactured by plastic injection molding, but the device or at least one of them can be manufactured by another manufacturing process, such as an additive manufacturing process, without departing from the context of the present invention.

[0132] Accordingly, for illustrative purposes, Figures 18A–18C show an applicator head 120 according to a sixth embodiment, whose design takes into account specific features and possible modes of additive manufacturing. This applicator device 10 according to the sixth embodiment differs from the applicator device 10 according to the first embodiment in that the reserve zone 121 is entirely defined by the applicator head 120 itself and its coating film 123, and the insert 125 does not have a flat area suitable for cooperating with the first end, in a manner equivalent to the second variation of the first embodiment in Figures 7A–7D. The insert 125 according to the sixth embodiment thus has a substantially truncated cone shape so as to be received by the receiving space 115.

[0133] According to possible embodiments provided by additive manufacturing, the reserve zone 121 does not require a vent 1211 because the reserve zone 121 can be closed during the manufacturing of the applicator head 120. Except for this notable feature, the selection of one or more materials suitable for additive manufacturing, and the geometric features that must be adapted (in particular, the size of the first opening 124), the applicator head 120 according to this sixth embodiment is similar to that of the previous embodiments.

[0134] In the context of this sixth embodiment, the cap / stem element 110 may be equivalent to that of the second variant of the first embodiment and may be manufactured by plastic injection molding.

[0135] As a result, the process for manufacturing the applicator device 10 according to this sixth embodiment differs from the process for manufacturing the applicator device 10 according to the second modification of the first embodiment, in that, during the step of preparing the applicator head 120, this preparation is carried out by additive manufacturing, and the applicator head does not have a vent 1211.

[0136] Needless to say, given the possible forms provided by additive manufacturing, particularly regarding the possible shapes that can be produced and the possible combinations of materials, this sixth embodiment is merely one example of the variations made possible by this technique. Based on this teaching, those skilled in the art can, without inventive activity, modify and combine the different possible forms described throughout this book in accordance with common practice. In particular, it should be noted that in the context of such variations, the stem 112, and optionally the entire element cap / stem assembly 110, and the applicator head 120 may be made from a single piece in the context of such manufacturing, based on the combinations of materials permitted by such additive manufacturing.

[0137] Figures 20A to 20C show an applicator device 10 according to the seventh embodiment, comprising two coating films 123 and 123A, the first coating film 123 corresponding to a circular cylindrical wall and the second coating film 123A corresponding to the truncated base of the cylindrical wall.

[0138] The applicator device 10 according to this seventh embodiment differs from the applicator device according to the first embodiment in that the first applicator film 123 corresponds to a circular cylindrical wall, the second coating film 123A corresponds to the truncated base of the cylindrical wall, and the first end 114 of the gripping stem 112 is housed in the reserve zone 121. It should also be noted that the first coating film 123 according to this embodiment has the notable feature of having longitudinal grooves as the first opening 124, and has a honeycomb 127B as a surface structure.

[0139] As shown in Figures 21A and 21B, the applicator head 120 according to this embodiment has a substantially circular cylindrical shape and a distal portion 120B having a distal base that is truncated to form a second coating film 123A (forming an angle of 135° with the longitudinal axis of the stem 112). Thus, in this seventh embodiment, the first coating film 123 has the form of a longitudinally circular cylindrical wall. According to this possible embodiment, as shown in Figure 21A, the first coating film may extend over the entire or a portion of the distal portion 120B, in this case, the entire portion. In this possible embodiment, the first film is curved and extends over the longitudinal angular portion of the applicator head, 360°, as the first coating film occupies the entire lateral surface of the distal portion 120B. As a variation, the first coating film 123 may be curved and extend over a longitudinal angular portion of the applicator head less than 360°. This allows, for example, this angular portion to represent an angle of the applicator head 120 greater than 90°, preferably 120°, or even greater than 180° or 240°.

[0140] It should be noted that such an angle can be determined as corresponding to the angle defined between the two external lateral sides of the first coating film 123 with respect to the longitudinal axis of the stem 112.

[0141] As explicitly stated above, the first opening 124 of the first coating film 123 is in the form of a longitudinal groove extending over most of the first coating film 123. In particular, as can be seen in Figure 20B, the first coating film 123 alternates between longitudinal grooves communicating with the inlet orifice 122 and grooves that are closed in the proximal portion 120A. Such communication ensures that portions of the product introduced through the inlet orifice 122 are directly supplied to the grooves communicating with the inlet orifice 122, thereby guaranteeing a relatively large initial supply of the product.

[0142] The first coating film 123 comprises a honeycomb-type surface structure 127B between grooves forming the first opening 124. In detail, in Figures 20A and 20B, it can be seen that longitudinal arms defined by the grooves each comprise a series of cavities formed on their surface. Such honeycomb 127B or cavities enable the formation of a product reservoir and allow for uniform application of the product. Needless to say, in this embodiment, only the first film 123 is provided with a surface structure, in this case a honeycomb-type 127B, but it is quite conceivable that the second coating film 123A may also have a surface structure, or that the second coating film 123A may have a surface structure instead of the first coating film 123, regardless of whether these surface structures are of the honeycomb type or not.

[0143] The second coating film 123A has second openings 124A positioned to cover the entire second coating film 123A, as shown in Figure 20A. As shown in Figure 20C, some of the second openings 124A are in direct fluid communication with the reserve zone 121, while some other second openings 124A are in communication with the reserve zone 121 through grooves in the first film 123.

[0144] In this embodiment, the insert 125 is hollow and communicates with the reserve zone 121, allowing passage of the first end 114. The first end 114 has a longitudinal shape, as shown in Figures 22A and 22B, with a longitudinal groove 114A positioned to guide the product along it as it is introduced through the inlet orifice 122.

[0145] As a result, when the applicator head is assembled to the cap / stem element 110, as shown in Figure 20C, the insert 125 is inserted into the receiving space 115, while the first end 114 is inserted into the reserve zone 121. After assembly, the first end 114 closes the recess of the insert in the receiving space 115, thereby closing the reserve zone 121. The first end 114 is then partially retracted into the reserve zone 121. In addition to guiding, the groove in the first end 114 provides storage space for the product and at the same time ensures that the applicator head 120 is held correctly against the stem 112 by the pressure provided by the protrusion defining the groove in the first end 114.

[0146] The process for manufacturing the applicator device 10 according to this seventh embodiment is: - During the step of preparing the cap / stem element 110, the first end 114 is shaped to have a groove and to be at least partially housed in the reserve zone 121. - During the step of preparing and positioning the applicator head 120 so as to be positioned on the first end 114 of the stem 112 of the cap / stem element 110, the applicator head 120 has a first coating film 123 and a second coating film 123A according to this embodiment, the insert 125 is hollow, and the first end 114 is positioned at least partially retracted in the reserve zone 121 after the positioning of the applicator head 120 on the cap / stem element 110. In this respect, it differs from the process for manufacturing the applicator device 10 according to this first embodiment.

[0147] Figure 23 shows an applicator device 10 in a modified form of the seventh embodiment, in which the first coating film 123 has no surface structures whatsoever. Thus, this modified applicator device 10 of the seventh embodiment differs from the applicator device 10 of the seventh embodiment in that the first coating film 123 has no surface structures whatsoever.

[0148] In detail, it can be seen in Figure 23 that the first coating film 123 is smooth and has no surface structures whatsoever.

[0149] The process for manufacturing the applicator device 10 according to this variation of the seventh embodiment differs from the process for manufacturing the applicator device 10 according to the seventh embodiment, except that the first coating film 123 does not have any surface structures during the step of preparing and positioning the applicator head 120.

[0150] Figures 24A and 24B show an applicator device 10 according to the eighth embodiment, in which the first coating film 123 has a lateral groove that extends over half of the outer circumference of the applicator head 120, which is conventionally called the upper half. This applicator device 10 according to the eighth embodiment differs from the applicator device 10 according to the seventh embodiment in that the first coating film 123 has a lateral groove that extends over the upper half of the outer circumference of the applicator head 120, and in that the second coating film has only three second openings 124A, namely a central opening and two semicircular grooves surrounding the central opening.

[0151] In Figures 25A and 25B, it can be seen that the lateral grooves forming the first opening 124 are alternately arranged along the first coating film 123, that is, two grooves on their respective extensions from one end of the upper half to the other, and a single central side groove in the upper half are alternately arranged. Considering the cut surface formed by the second coating film 123A, it should be noted that this alternating arrangement is interrupted at the distal end of the first film by four central side grooves of decreasing size.

[0152] The process for manufacturing the applicator device 10 according to this eighth embodiment differs from the process for manufacturing the applicator device 10 according to the seventh embodiment, except that the first and second coating films 123, 123A are shaped according to this embodiment during the step of preparing and positioning the applicator head 120.

[0153] In some embodiments, the applicator head 120 comprises one or two coating films 123, 123A, but it is conceivable, without departing from the context of the present invention, that the applicator head 120 may comprise more coating films 123, 123A. Thus, in particular, the applicator head 120 of the second embodiment and its variations can be readily adapted to comprise four coating films 123, 123A by applying the principle of double coating films 123, 123A adjacent to the opposite side of the applicator head 120 from the first and second coating films 123, 123A. Thus, generally speaking, within the context of the present invention, it is quite conceivable that the applicator head 120 may comprise between one and 32 coating films 123, 123A.

[0154] Similarly, in most embodiments and their variations, the first coating film 123 has a flat surface; however, without departing from the context of the present invention, as already discussed in relation to Figures 5A-6, the first coating film and any other coating films 123A may have different configurations. Thus, for example, as shown in Figures 19A and 19B, the first film 123 may have either a concave surface (Figure 19A) or a convex surface (Figure 19B). Similarly, depending on the surface of the user's body part on which the product is intended to be applied, the surfaces of the first coating film 123 and any other coating films 123A may have a curvature suitable for the shape of the body part.

[0155] Furthermore, it should be noted that the different embodiments and variations described above have different configurations of the inlet orifice, and these different configurations can be readily applied to each of the embodiments and each of their variations. Thus, generally speaking, when the applicator head 120 has two or more inlet orifices 122, these can be configured as follows: - A configuration in which at least two inlet orifices 122 are evenly distributed around the longitudinal direction. - A configuration in which at least two inlet orifices 122 are distributed along the extension of at least one first coated film 123, 123A, - A configuration in which at least two inlet orifices are distributed on the opposite proximal portion of at least one first coated film 123, 123A, - A configuration in which at least one of the at least two inlet orifices lies on the extension of at least one first coated film 123, 123A, and at least one of the at least two inlet orifices lies on the proximal portion of the surface opposite to the coated surface. - A configuration in which at least two of the two inlet orifices are located on either side of the extension of at least one reserve zone 121. You can choose one of them.

Claims

1. An applicator device (10) for applying a fluid or paste-like product to keratin fibers, or to the epidermis, mucous membranes and / or a portion of keratin, - Gripping stem (112) and, - An applicator head (120) positioned at the first end (114) of the gripping stem (112), intended for insertion into a reservoir (20) for the fluid or paste-like product, wherein the reservoir (20) includes an excess removal system (40) intended for the applicator head (120) to pass through when it is withdrawn from the reservoir (20), and Equipped with, The applicator device (10) has an applicator head (120) - The applicator head (120) has at least one reserve zone (121) intended to contain a fluid or paste-like product when withdrawn from the reservoir (20), - At least one inlet orifice (122) in fluid communication with the reserve zone (121), wherein at least one inlet orifice (122) is positioned on the proximal portion of the applicator head (120) relative to the gripping stem (112) such that the inlet orifice (122) contacts the excess removal system (40) when the applicator head (120) is withdrawn from the reservoir (20), - At least one first coating film (123) positioned at least partially along the reserve zone (121) and having at least one first opening (124) in fluid communication with the reserve zone (121), wherein pressure on the coating film (123), in particular to keratin fibers, or to the epidermis, mucous membrane and / or portion of keratin, results in a reduction in the volume of the reserve zone (121) and delivery of the fluid or paste-like product stored in the reserve zone (121) through the at least one first opening (124) and A feature comprising Applicator device (10).

2. The applicator device (10) according to claim 1, wherein the applicator head (120) comprises a portion proximal to the gripping stem (112) and extending longitudinally from the first end of the gripping stem in the longitudinal direction, and having the inlet orifice formed thereon, and a distal portion of the gripping stem (112), the distal portion comprising the coating film, and the inlet orifice (122) defines an opening surface oriented in the opening plane at an angle of less than 75°, or even less than 55°, and particularly advantageously less than 45°, with respect to a plane perpendicular to the longitudinal direction.

3. The aforementioned proximal portion comprises at least two inlet orifices (122, 122A, 122B), The aforementioned at least two inlet orifices (122, 122A, 122B) preferably have the following configuration, namely: - The configuration in which the at least two inlet orifices (122, 122A, 122B) are evenly arranged around the longitudinal direction, - The configuration is such that the at least two inlet orifices (122, 122A, 122B) are distributed along the extension of the at least one first coating film (123, 123A), - The configuration is such that the at least two inlet orifices are distributed on the proximal portion surface opposite to the at least one first coating film (123, 123A), - A configuration in which at least one of the at least two inlet orifices lies on the extension line of the at least one first coating film (123, 123A), and at least one of the at least two inlet orifices lies on the proximal portion surface opposite to the coating surface. - A configuration in which at least two of the at least two inlet orifices are arranged on both sides of the extension of the at least one reserve zone (121), Having at least one of the following, The applicator device (10) according to claim 2.

4. The applicator device (10) according to claim 1 or 2, wherein the at least one first coating film (123, 123A) has a plurality of first openings (124, 124A) distributed along the first coating film (123, 123A), and the first coating film (123, 123A) preferably comprises between 1 and 500 first openings (124, 124A), or further between 10 and 120 first openings (124, 124A), or further between 20 and 60 first openings (124, 124A).

5. The applicator device (10) according to any one of claims 1 to 4, wherein the first coating film (123, 123A) comprises at least one surface structure, the surface structure preferably includes at least one structure selected from ribs, grooves, spikes (127), honeycomb, and ridges.

6. The applicator device (10) according to any one of claims 1 to 5, wherein the reserve zone (121) comprises at least one spike (1217) which is arranged to protrude from the first coating film (123, 123A) through the at least one first opening (124, 124A) when the first coating film (123, 123A) is pressed, and the spike (1217) is preferably arranged to protrude from the first coating film (123, 123A) through the at least one first opening (124, 124A) even when the first coating film (123, 123A) is not pressed.

7. The applicator device (10) also includes a second coating film (123A) adjacent to the first coating film (123), the second coating film (123A) having at least one second opening (124A) that is in fluid communication with the reserve zone (121), and in particular, pressing the second coating film (123A) against keratin fibers, or against the epidermis, mucous membrane and / or a portion of keratin, reduces the volume of the reserve zone (121), and the reserve An applicator device (10) according to any one of claims 1 to 6, which provides delivery of the fluid or paste-like product stored in the ve zone (121) through the at least one second opening (124A), wherein the second coating film (123A) forms an angle with the first coating film (123) preferably between 35° and 160°, advantageously between 55° and 140°, and particularly preferably between 80° and 120°, or even equal to 90°.

8. The applicator device (10) according to any one of claims 1 to 7, wherein the applicator device (10) also comprises a second coating film (123A) positioned at least partially along the reserve zone (121), opposite the first coating film (123), and having at least one second opening (124A) that is in fluid communication with the reserve zone (121), in particular, the pressure from the second coating film (123A) on keratin fibers or on the epidermis, mucous membrane and / or portion of keratin resulting in a reduction in the volume of the reserve zone (121) and delivery of the fluid or paste-like product stored in the reserve zone (121) through the at least one second opening (124A).

9. The applicator device (10) according to any one of claims 1 to 7, wherein the applicator head (120) is positioned on the opposite side of the first coating film (123) and has a finished surface shaped to facilitate the spreading of the product applied from the first coating film, the finished surface preferably having at least one surface structure selected from the group having ribs, grooves, spikes, honeycombs and ridges.

10. The applicator head (120) is formed to cooperate by fitting with the first end (114) of the gripping stem (112), The reserve zone (121) is at least partially defined by the first end (114) after fitting. An applicator device (10) according to any one of claims 1 to 9.

11. The applicator head (120) is formed to cooperate by fitting with the first end (114) of the gripping stem (112), The first end (114) is at least partially housed in the reserve zone (121) after fitting. An applicator device (10) according to any one of claims 1 to 10.

12. The applicator device (10) according to any one of claims 1 to 9, wherein the applicator head (120) has a portion (125) in its proximal portion that is complementary to the first end (114) so ​​as to enable assembly of the applicator head at the first end (114).

13. The applicator device (10) according to claim 12, wherein the reserve zone (121) is arranged along the reserve zone (121) and preferably has at least one side vent (1211) opening onto the surface of the applicator head (120) adjacent to the first coating film (123).

14. The applicator device (10) according to any one of claims 1 to 13, wherein the first coating film (123) is curved and may extend over a longitudinal angular portion of the applicator head (120) at an angle greater than 90°, preferably 120°, or even greater than 180° or 240°, and the coating film (123) corresponds to a longitudinal angular portion of the applicator head (120) that is advantageously equal to 360°, and particularly advantageously to a circular cylindrical wall.

15. A coating assembly (1) for applying a fluid or paste-like product to keratin fibers, or to the epidermis, mucous membranes and / or a portion of keratin, A coating device (10) according to any one of claims 1 to 14, A reservoir (20) for the fluid or paste-like product, comprising an excess removal system (40) intended for the applicator head (120) to pass through when withdrawn from the reservoir (20), and A coating assembly (1) comprising:

16. A process for manufacturing an applicator device (10), comprising the following steps: - Steps to prepare the gripping stem (112), - Steps of preparing and positioning the applicator head (120) such that the applicator head (120) is positioned on the first end (114) of the gripping stem (112), which is intended for insertion into a reservoir (20) of a fluid or paste-like product, wherein the reservoir (20) includes an excess removal system (40) intended for the applicator head (120) to pass through when it is withdrawn from the reservoir (20) and Equipped with, The manufacturing process, during the step of preparing and positioning the applicator head (120), - At least one reserve zone (121) intended to contain a fluid or paste-like product during withdrawal of the applicator head (120) from the reservoir (20), - At least one inlet orifice (122) in fluid communication with the reserve zone (121), wherein at least one inlet orifice (122) is positioned on the proximal portion of the applicator head (120) relative to the gripping stem (112) such that the inlet orifice (122) contacts the excess removal system (40) when the applicator head (120) is withdrawn from the reservoir (20), - At least one first coating film (123) positioned at least partially along the reserve zone (121) and having at least one first opening (124) in fluid communication with the reserve zone (121), wherein pressure on the coating film (123), in particular to keratin fibers, or to the epidermis, mucous membranes and / or a portion of keratin, results in a reduction in the volume of the reserve zone (121) and delivery of the fluid or paste-like product stored in the reserve zone (121) through the at least one opening (124) and A feature comprising process.

17. During the step of preparing and positioning the applicator head (120), the applicator head (120) is shaped to cooperate by fitting with the first end (114) of the gripping stem (112), and the reserve zone (121) is at least partially defined by the first end (114) after fitting. The step of preparing and positioning the applicator head (120) is a substep of the following: - A substep of preparing the applicator head (120), - A substep of assembling the applicator head (120) to the first end (114) of the gripping stem (112) by cooperatively fitting the applicator head (120) onto the first end (114) of the gripping stem (112), wherein the reserve zone (121) is at least partially defined by the first end (114) after fitting. Equipped with, The manufacturing process according to claim 16.

18. During the step of preparing and positioning the applicator head (120), the applicator head (120) has a portion (125) in its proximal portion that is complementary to the first end (114) so ​​as to enable the assembly of the applicator head at the first end (114), The step of preparing and positioning the applicator head (120) is a substep of the following: - A substep of preparing the applicator head (120), - A substep of assembling the applicator head (120) to the first end (114) of the gripping stem (112) by the portion (125) that is complementary to the first end (114) Equipped with, The manufacturing process according to claim 17.

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