Bottle for packaging and applying a cosmetic product, featuring a porous application nozzle

Abstract

The invention relates to a bottle comprising a reservoir (2) having an internal volume (5) containing a liquid cosmetic product, the reservoir (2) having a neck (6) extending in a longitudinal direction (L) between the internal volume (5) of the reservoir (2) and the outside of said reservoir, the bottle (1) having an applicator (10) mounted in the neck (6), the applicator (10) having an application tip (11) intended to be brought into contact with a part of the body of a user of the bottle to apply the product. The application tip is made of a porous material.The applicator comprises a porous wick (12) formed by or attached to the application tip (11), said wick (12) extending into the reservoir so as to be immersed in the product, the application tip (11) being mounted in the neck (6) in a manner that is product-tight, and the bottle comprising at least one channel extending into the neck (6) between the inner volume (5) of the reservoir (2) and the outside of the bottle, at least one channel having a cross-section calibrated to permit the passage of air while opposing the passage of the product. (See Figure 1 for abbreviations.)

Description

Title of the invention: Bottle for the packaging and application of a cosmetic product comprising a porous application nozzle TECHNICAL FIELD OF THE INVENTION

[0001] The invention relates to the field of devices for conditioning, distributing and applying a perfume or cosmetic product, in particular toiletries, makeup or skincare products.

[0002] Cosmetic products include in particular all products for the makeup of the skin or hair, as well as all perfumed or odorous compositions intended for application to the body.

[0003] Care products include, in particular, products intended to be applied to the human or animal body to treat or prevent discomfort or disease.

[0004] The invention relates in particular to a bottle for packaging and applying such a cosmetic product in liquid form. The term "liquid" does not preclude the product from having a certain viscosity; the product may, in particular, be aqueous or oily.

[0005] Conditioning means maintaining the product under suitable storage conditions between two applications of the product.

[0006] In the remainder of this document, the invention is described and exemplified in relation to a cosmetic product, which includes makeup products and skincare products. STATE OF THE ART

[0007] Many types of applicators are known in the prior art. The present invention relates to low-viscosity liquid products that are to be packaged in a bottle and then easily applied, for example, to the lips, skin, hair, or nails. For simplicity, the term "skin" is used throughout this document, although the invention can be used for applying a product to any part of the user's body.

[0008] It is known to use for this purpose an applicator having an applicator tip adapted to hold the product, which is dipped into a bottle before being withdrawn once filled with product. The product is applied by rubbing the applicator tip on the user's skin, or by depositing dots of product through repeated contact of the applicator with the skin. This type of applicator is suitable for certain uses, but has the disadvantage of needing to be frequently refilled with product. In addition, during application, the user must hold or set down the bottle. filled with product, which is not always convenient.

[0009] Furthermore, in this type of applicator, the applicator tip is dipped in the product between applications and passes through a wringer when removed from the bottle. This constitutes a complex assembly necessary to obtain the desired quantity of product on the applicator tip and, where applicable, to prevent dripping and loss of product drops.

[0010] Bottles with a rollerball applicator (or "roll-on" as it is commonly known in English) are also known. These bottles generally consist of a flexible tube and a nozzle with a rotating rollerball that becomes loaded with product on its inner surface when the tube is squeezed. The product-loaded surface of the rollerball then rotates outward from the nozzle, rolling over the user's skin to apply the product. The quality of the application depends on the orientation of the applicator; the nozzle must be oriented downwards for proper application. In the case of a flexible bottle, the bottle must be squeezed to dispense the product, which is inconvenient. Generally, the mechanism is relatively complex and requires good precision to dispense the product while preventing leaks.

[0011] It has also been considered to use an applicator comprising a foam application element capable of absorbing cosmetic product. Document WO2019121262 presents such an applicator. According to this document, the application surface of the application element is made of compressible foam. The foam is compressed by a cap placed on the application element when the applicator is in the closed position, and expands when the cap is removed. An actuator pressurizes the product to saturate the applicator element. The system is therefore relatively complex, as it involves moving parts, notably a piston, and requires product sealing within the device.

[0012] Finally, it is known to condition certain makeup, and more particularly certain inks that can be applied to the skin or certain eyeliners (according to the anglicism generally used, which can be translated as "eye pencil" or sometimes as "liner"), in the form of a felt-tip pen similar to those used for writing, graphic design or drawing.

[0013] Such a felt-tip pen comprises, in a known manner, a body, the rear portion of which constitutes an ink reservoir, and a nib, the rear end of which opens into the reservoir and the front end of which forms a writing tip. Such a felt-tip pen further comprises a pad in the form of an element made of an open-pore hydrophobic material, which is placed around and in contact with the nib. The pad allows for a re The flow within the wick is regulated, and the ink fills or empties from or into the wick by capillary action. This configuration is nonetheless complex and also results in a typical elongated shape, similar to a pen, which is undesirable for any product. Consequently, the amount of ink that can be contained and delivered is quite small. Description of the invention

[0014] The present invention aims to remedy all or part of the disadvantages of the prior art mentioned above.

[0015] To this end, the invention aims to provide a bottle allowing for the packaging and regular application of a liquid cosmetic product, which does not require repeatedly dipping an application tip into the product and which is simple to implement.

[0016] Thus, the invention relates to a bottle comprising a reservoir with an internal volume containing a liquid cosmetic product. The reservoir has a neck extending longitudinally between the internal volume of the reservoir and the outside of said reservoir. The bottle has an applicator mounted in the neck, the applicator having an application tip intended to be brought into contact with a part of the user's body to apply the product, the application tip having an application surface formed of a porous material. The application tip is made of said porous material. The applicator has a porous wick formed by or attached to the application tip. The wick extends into the reservoir so as to be immersed in the product.

[0017] The application nozzle is mounted in the neck in a manner that is product-tight. The bottle has at least one channel extending in the neck between the inner volume of the reservoir and the outside of the bottle, at least one channel having a cross-section calibrated to allow the passage of air while preventing the passage of the product.

[0018] A bottle is thus proposed that allows for the packaging of the liquid cosmetic product in a suitable reservoir, as well as the distribution and application of the product via an application nozzle integrated into the bottle. The product is supplied to the surface of the application nozzle by capillary action through the wick and into the application nozzle itself.

[0019] By providing a channel whose cross-section is calibrated to allow air to pass through while preventing the product from passing through, any leakage of product is avoided, even for example when the bottle is held with the application nozzle oriented towards the ground, while the capillary effect is promoted in the wick and in the application nozzle by ensuring a pressure balance between the inside and outside of the reservoir.

[0020] The principle of capillarity and pressure equilibrium implemented in the invention means that no external force needs to be applied by the user to allow the distribution of the product: it is not necessary to compress the bottle (which does not need to be deformable), and it is not necessary to turn it upside down either.

[0021] To form the applicator tip, a relatively crush-resistant porous material is selected. In particular, the material must only slightly crush when applied and pressed onto the skin (or other body part) by a user, with a force typically used to apply a cosmetic product.

[0022] Similarly, if the application tip is mounted tightly in the neck, it must not be subjected to compression that would substantially reduce its porosity.

[0023] The regulation of the product flow being done in a simple way, at the level of the neck of the bottle, the bottle can have a compact appearance, suitable for many cosmetic products.

[0024] Various solutions are envisaged within the framework of the bottle of the present invention for forming the channel (or channels) enabling pressure equalization between the inside and outside of the reservoir to promote the migration of the product by capillary action. Generally, the channel (or each channel) can have a substantially constant cross-section (perpendicular to its general direction of extension, which is typically predominantly longitudinal).

[0025] Thus, at least one channel can be formed by a groove made on an inner surface of the neck.

[0026] At least one channel can be formed by a groove made on an external surface of the application tip.

[0027] At least one channel can be provided through the application tip.

[0028] In some embodiments, an insert may be interposed between an inner surface of the neck and an outer surface of the application tip to form at least one channel.

[0029] According to one embodiment, the insert may have the form of an elongated rod interposed between the inner surface of the neck and the outer surface of the applicator tip and extending between the inner volume of the reservoir and the outside of the reservoir, said insert causing a local transverse deformation of the applicator tip which forms at least one channel along the insert. In this case, and depending on the exact shape of the insert, a channel may be formed on each side of the insert. In this embodiment, the insert is therefore made of a rigid material, more resistant to crushing than the porous material forming the applicator tip. It has been found that such an insert makes it possible to form a longitudinal channel in the immediate vicinity of its line of contact with the inner surface of the bottle neck. The choice of the insert's cross-section, depending on the material constituting the applicator tip, makes it possible to calibrate cor- directly the cross-section of the channel.

[0030] Alternatively, the insert is substantially cylindrical and has an outer surface which is mounted in contact with the inner surface of the neck and an inner surface in contact with the application tip.

[0031] With this general cylindrical configuration of the insert, or more precisely hollow cylindrical or tubular, at least one channel can be formed in different ways.

[0032] At least one channel can be formed by a groove made on the inner surface of the insert or on the outer surface of the insert.

[0033] The internal surface of the insert may have a rib projecting from said internal surface of the insert, said rib extending between the internal volume of the reservoir and the external part of the reservoir, said rib causing a local transverse deformation of the application nozzle, which forms at least one channel along said rib. The at least one channel is thus formed according to the same principle as when the insert is in the form of a longitudinal rod, which is described above.

[0034] The insert may include a collar that covers an upper face of the neck, and at least one channel then includes a transverse portion formed on the collar. This configuration allows the applicator tip to cover the upper face of the neck, so that the transverse dimensions of the base of the applicator tip (for example, its diameter) can be the same as the external dimensions of the neck. In this case, each channel can be continued transversely in the same way that it is formed longitudinally (by a suitable groove or rib).

[0035] In all embodiments, the insert can for example be made of a plastic material.

[0036] The applicator tip can be made of various porous materials. The material chosen must nevertheless allow or even promote the migration of the product by capillary action, while also being relatively resistant to deformation under pressure on the skin (or other part of the body) during application of the product.

[0037] As an order of magnitude, it can be considered that when applying a cosmetic product, for example lipstick, an average force of approximately 3 N is applied by the user orthogonally to the surface on which the applicator tip is placed, plus or minus approximately 1.5 N. Thus, a force of between 1.5 N and 4.5 N is applied. The porous material can be selected and the shape of the applicator tip adapted so that the tip does not bend significantly during product application and so that the surface of the tip in contact with the skin during application experiences minimal compression under a force of approximately 2 N, for example 1.5 N.

[0038] Thus, the porous material may contain an entanglement of fibers. In a way In this case, the fibers are preferentially oriented longitudinally. This means that when the material's structure is observed under sufficient magnification to distinguish the fibers, it becomes clear that the fibers exhibit a preferential orientation in the longitudinal direction. Thus, pores with a larger longitudinal dimension (even much larger) than their largest transverse dimension are formed. This promotes the migration of the product by capillary action in the longitudinal direction. For example, the fibers could be nylon fibers. When the wick is not formed as a single piece with the application tip, it can advantageously exhibit these same properties.

[0039] Alternatively, the porous material can be a sintered plastic, metallic or ceramic material.

[0040] Alternatively, the porous material can be an open-cell foam.

[0041] The bottle reservoir can be made of glass.

[0042] The neck can be configured to receive a bottle closure cap that can be snapped or screwed onto said neck. BRIEF DESCRIPTION OF THE FIGURES

[0043] Other advantages, purposes and particular features of the present invention will become apparent from the following non-limiting description of at least one particular embodiment of the devices and methods of the present invention, with reference to the accompanying drawings, in which: • [Fig.1] is a schematic three-dimensional view of a bottle according to one embodiment of the invention; • [Fig.2] is a schematic three-dimensional view of a dispensing nozzle that can be used in a bottle according to an embodiment of the invention; • [Fig.3] is a schematic three-dimensional view of a dispensing nozzle that can be used in a bottle according to another embodiment of the invention; • [Fig.4] is a schematic cross-sectional view of the neck of the bottle in [Fig.1]; • [Fig.5] is a cross-sectional view of a bottle conforming to a variant of the present invention; • [Fig.6] is a cross-sectional view of a bottle according to another variant of the present invention; • [Fig.7] is a partial, three-dimensional view of a bottle conforming to an embodiment of the invention; • Figure [Fig. 8] illustrates a partial three-dimensional view of one aspect of the bottle of the [Fig.7], • [Fig.9] illustrates on a partial three-dimensional view an alternative embodiment to that of [Fig.8]; • [Fig. 10] is a schematic three-dimensional view of a bottle according to one embodiment of the invention; • [Fig. 11] illustrates on a partial three-dimensional view an aspect of the bottle of [Fig. 10]; • [Fig. 12] is a cross-sectional view of a bottle according to a variant of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0044] Fig. 1 is a schematic three-dimensional view of a bottle according to an embodiment of the invention.

[0045] The bottle 1 includes a reservoir 2. The reservoir 2 has a side wall 3 and a base 4, which define an internal volume 5 suitable for containing a cosmetic product. The reservoir may be made of glass. However, any other suitable material is conceivable, for example plastic, metal (such as stainless steel or aluminum and certain alloys thereof), and ceramic.

[0046] The bottle has a neck 6 which forms an opening between the inner volume 5 of the reservoir 2 and the outer 7 of the bottle 1. By outer 7 of the bottle, it is understood that the space surrounding the bottle, also referred to as the atmosphere outside the bottle.

[0047] The neck 6 can be adapted to receive a sealing cap for the bottle 1. In the example shown here, for this purpose, the outer surface 8 of the cap has a thread 9 allowing a threaded cap to be screwed onto it.

[0048] The neck 6 also includes an inner surface, which defines a passage between the inner volume 5 and the outer volume 7 of the bottle. The general direction of extension of the neck 6 is called the longitudinal direction L. Any direction perpendicular to the longitudinal direction L is called transverse.

[0049] The bottle includes an applicator 10. The applicator 10 is fixedly mounted in the neck 6. The applicator 10 allows the application of the product contained in the reservoir 2 onto the skin (or other part of the body) of the user.

[0050] For this purpose, the applicator 10 includes an application tip 11. The application tip is the part of the applicator with the surface intended to come into contact with the user's body to apply the product. In the example shown, the application tip is shaped to allow easy application of the product to the lips. This is referred to as a "grape" shape. Any other shape of application tip can, of course, be considered, depending on the area of ​​application of the product.

[0051] According to the invention, the application tip 11 is formed of a porous material allowing migration of the product inside said material.

[0052] It is recalled that a pore generally refers to a microscopic channel existing within a solid material.

[0053] To allow the product to migrate from the internal volume 5 of the reservoir 2 to the application nozzle 11, the applicator includes a wick 12. The wick is itself made of a porous material that allows the product contained in the reservoir 2 to rise by capillary action. The wick 12 extends into the internal volume 5 of the reservoir 2, preferably to the bottom 4 or close to the bottom 4. The wick is thus immersed in the cosmetic product present in the reservoir 2.

[0054] The wick 12 is, in the example of [Fig.1], made up of a single piece with the application tip 11.

[0055] In order to connect the applicator 10 to the neck 6 of the bottle 1, the applicator tip is configured so that it is mounted in the neck 6 in a manner that is product-tight. However, in order not to impede the migration of the product by capillary action into the applicator tip 11, the applicator tip 11 is configured so as not to be crushed transversely in the neck (or, at the very least, not to be subjected to compression that would significantly reduce its porosity). In other words, the mounting of the applicator tip 11 in the neck is such that it allows the product to pass by capillary action from the internal volume of the reservoir to the surface of the applicator tip 11 intended to be in contact with the user's body to apply the product.

[0056] Depending on the material of the application nozzle and by way of example only, if the application nozzle is to be clamped by the neck, a reduction in cross-section due to compression of the application nozzle of up to 20% may be permissible. Other alternative or complementary methods of fastening to clamping the nozzle in the neck can, of course, be considered.

[0057] Examples of application tips are shown respectively in [Fig.2] and [Fig.3].

[0058] Figure 2 shows an application nozzle 11 formed of a foam, namely a foam made of nylon fibers. Other types of fibers, whether plastic or natural, may be used. The fibers may be oriented predominantly along the longitudinal direction L to promote the migration of the product by capillary action in said longitudinal direction L. Many other types of foam may be used within the scope of the present invention. A "felt"-type foam, comprising an agglomerate of fibers with a random orientation, may be used. A foam made of a sintered material (plastic or metallic), retaining suitable porosity after sintering, may be used.

[0059] Figure 3 shows an application nozzle 11 formed from an extruded material. material has elongated pores 15 obtained during the extrusion of the application tip.

[0060] Generally, the porous material forming the applicator tip is chosen to have high porosity while remaining relatively resistant to compression. Indeed, the applicator tip must not compress excessively or deform when the product is applied to the user's body. A hard, compression-resistant foam is therefore preferred.

[0061] According to the present invention, a channel is provided between the internal volume 5 of the reservoir and the atmosphere outside the bottle (i.e., the exterior 7 of the bottle). The channel (or channels) has a calibrated cross-section so as not to allow spontaneous flow of the product, particularly when the bottle is inverted (neck 6 downwards). Nevertheless, the passage of a small quantity of air is permitted through the channel, which makes it possible to equalize the pressure between the internal volume of the reservoir and the exterior of the bottle 7.

[0062] The channel is nevertheless configured so that when a cap is placed on the bottle 1 (typically on the neck 6) to seal the bottle, it also seals the channel, thus preventing the product from being exposed to air between applications. This also prevents any risk of product leakage through this channel (although, in any case, this channel is product-tight, i.e., it prevents spontaneous flow of the product). This notably allows for leak-free transport of the bottle.

[0063] The channel can be formed in various ways. In the example shown in [Fig. 1], an insert 13 is interposed between the inner surface 14 of the neck 6 and the application nozzle 10. The insert 13 has the general shape of a rod, and is oriented longitudinally between the inner volume 5 of the reservoir and the outside of the reservoir, at the end of the neck 6.

[0064] Figure 4 illustrates how the insert 13 forms channels 16 around the contact line between the insert 13 and the inner surface 14 of the neck 6 in this example. The insert 13 (whose cross-section is exaggerated here compared to the cross-section of the application tip 11) causes a local deformation of the application tip 11. The elasticity of the application tip 11 does not, however, allow it to completely fill the space around the insert 13, which creates the channels 16.

[0065] It should be noted that the insert 13 has at its end opening outside the neck 6 and more generally of the reservoir 2 a small bend 17, which prevents the channel 16 from being blocked at this level by the application tip 11 no longer undergoing the local deformation imposed by the insert 13. Alternatively, the insert 13 can simply be extended slightly outside the neck 6.

[0066] Figure 5 shows, in cross-section, an embodiment of the invention similar to that of Figure 1. The description given with reference to Figure 1 above applies to the embodiment of [Fig. 5], except for the differences explained below.

[0067] Since the wick 12 serves only to convey the product by capillary action to the application nozzle 11, it is not necessary for it to have a large cross-section. In particular, it is not necessary for the wick 12 to have the same cross-section as the application nozzle, the cross-section of which can be essentially defined to allow assembly and fixation in the collar 6.

[0068] The wick 12 of the embodiment of [Fig. 5] therefore has a small cross-section. In particular, the wick 12 of the embodiment of [Fig. 5] has a cross-section much smaller than that of the application nozzle 11, even though it is formed as a single unit with said application nozzle 11. The volume available in the reservoir 2 for the product is thus increased.

[0069] Figure 6 shows, in cross-section, an embodiment of the invention close to that of [Fig.5]. The description made with reference to [Fig.5] above applies to the embodiment of [Fig.5], except for the differences explained below.

[0070] Although the porous material used to form the application nozzle 11 is generally suitable for causing the product to migrate from the internal volume 5 of the reservoir to the application nozzle 11, it is not always easy to produce the application nozzle 11 and the wick 12 of the applicator 10 as a single unit. Furthermore, the material of the wick 11 can be optimized to promote capillary migration of the product, compared to the material of the application nozzle, which must meet other requirements (for example, a certain mechanical resistance to compression to allow the product to be applied without excessive crushing, and a certain softness felt during application). The same constraints do not apply to the material of the wick 12, which can be flexible and / or compressible, since it is never subjected to mechanical stress by the user.

[0071] In the embodiment of [Fig.6], the wick 12 is linked to the application tip 11, in such a way as to allow the passage of the cosmetic product from the wick 12 to the application tip 11. In this case, the wick 12 is fitted into the application tip 11.

[0072] Figure 7 is a partial view of a bottle according to one embodiment of the invention. In [Fig.7], the application tip has been omitted. In this embodiment, compared to the embodiments previously described, the insert 13 has a generally cylindrical shape, and constitutes an interface between the inner surface 14 of the neck 6 and the application tip 11, over its entire circumference.

[0073] Thus, the insert 13 has an outer surface 18 which is mounted in contact with the inner surface 14 of the neck 6. The outer surface 18 can thus be optimized to ensure good retention of the insert in the neck 6, and a seal against the product and air between the insert 13 and the neck 6.

[0074] The outer surface 18 may thus include peripheral ribs and / or a flexible overmolding.

[0075] The inner surface 19 of the insert 13 is in contact with the application tip 11, so that the insert ensures the mounting and retention of the application tip 11 in the neck 6.

[0076] When such an insert 13 is used, various solutions are conceivable for forming the channel enabling the pressure to be balanced between the internal volume 5 of the reservoir and the outside of the bottle 1.

[0077] The solution implemented in [Fig. 7] is explained in more detail in the detail view of [Fig. 8]. [Fig. 8] shows the end of the insert 13 opposite the internal volume 5 of the reservoir 2, i.e., the end of the insert 13 located at the free end of the neck 6. According to this embodiment, the internal surface 19 of the insert 13 has a rib 20. The rib 20 is formed as a projection from the internal surface 19 of the insert 13. The rib 20 is substantially longitudinal. The rib 20 acts like the generally rod-shaped insert 13 of Figures 1 to 6, and forms a channel to equalize the pressure between the internal volume of the reservoir 2 and the outside of the reservoir 7, as explained with reference to [Fig. 4]. The shape of the rib, seen in cross-section, can be adapted to precisely calibrate the channel.

[0078] Alternatively, the channel 16 is formed by a groove 21 provided on the inner surface of the insert 13. Despite its possible flexibility, the application tip 11 does not fill the groove 21 once placed in the neck 6 and therefore in the insert 13.

[0079] Alternatively (not shown), the groove 21 can be replaced by a groove formed on the external surface of the application tip 11, particularly when the material constituting it is sufficiently rigid. The channel can also be formed longitudinally in the application tip.

[0080] Alternatively (see [Fig. 12]), the groove 21 can be formed on the outer surface 18 of the insert, so that the pressure equilibrium between the inner volume 5 of the reservoir and the outside of the bottle 7 is achieved through the channel thus formed between the insert 13 and the inner surface 14 of the neck 6. Alternatively, a groove can be formed on the inner surface 14 of the neck 6.

[0081] As can be seen in Figures 7 to 9, the insert 13 further comprises an optional collar 22. The collar 22 covers an upper face 23 of the neck 6.

[0082] The collar 22 allows a transverse portion 24 of the channel 16 to be formed. As shown in [Fig. 10], this makes it possible to give the application tip 11 a shape that completely covers the upper face 23. Besides allowing for a wider application tip 11, this gives the bottle a more aesthetically pleasing appearance. Finally, it prevents the product from being retained in an angle formed between the tip application and the upper face 23.

[0083] In order to form a transverse portion 24 of the channel 16, the channel 16 is continued radially at the level of the collar 22, preferably in the same way as it is formed longitudinally by the insert 13. By way of example, [Fig.11] illustrates how the channel 16 formed longitudinally by a groove 21, as shown in [Fig.9], is continued by a transverse groove forming an opening into the groove 21, thus a transverse portion 24 of the channel which opens onto an edge of the upper face 23 of the neck 6.

[0084] If the channel 16 is formed longitudinally by a rib, it can be extended transversely by a corresponding rib. A transverse groove can also be used in this case.

[0085] Figure 12 illustrates, in cross-section, an embodiment of the invention in which the insert 13 has a collar 22 allowing the application nozzle 11 to have the same width as the neck 6, thus covering its entire upper surface. The groove that forms the channel 16 in this embodiment is formed on the outer surface 18 of the insert 13, between the insert 13 and the inner surface 14 of the neck 6. In order to allow communication between the inner volume 5 of the bottle and the exterior of the bottle, a transverse portion 24 of the channel 16 is formed under the collar 22, between the upper surface 23 of the neck 6 and said collar 22.

[0086] The present invention thus proposes a bottle for the packaging, dispensing, and application of a liquid cosmetic product. This bottle is simple, without complex mechanisms using moving parts, and does not require repeatedly dipping the applicator tip into the product. With the bottle proposed in the invention, the application process is simple and natural. The risk of product loss due to spillage is eliminated. Thanks to the introduction of an air passage, which is nevertheless airtight to the product, between the interior of the reservoir and the exterior of the bottle, a pressure equilibrium is established between the inside of the reservoir and the outside, creating conditions suitable for the capillary migration of the product to and within the porous applicator tip.

Claims

Demands

1. A bottle (1) comprising a reservoir (2) having an inner volume (5) containing a liquid cosmetic product, the reservoir (2) having a neck (6) extending in a longitudinal direction (L) between the inner volume (5) of the reservoir (2) and the outside of said reservoir, the bottle (1) comprising an applicator (10) mounted in the neck (6), the applicator (10) having an application tip (11) intended to be brought into contact with a part of the body of a user of the bottle to apply the product, the application tip having an application surface formed of a porous material, wherein the application tip (11) is made of said porous material, the applicator comprising a porous wick (12) formed by or attached to the application tip (11), said wick (12) extending into the reservoir so as to be immersed in the product, the tip application (11) is mounted in the neck (6) in a manner that is product-tight,and in that the bottle comprises at least one channel (16) extending in the neck (6) between the internal volume (5) of the reservoir (2) and the exterior of the bottle, the at least one channel (16) having a cross-section calibrated to allow the passage of air while opposing the passage of the product, characterized in that the bottle comprises an insert (13) interposed between an internal surface of the neck (6) and an external surface of the application nozzle (11), and in that the at least one channel (16) is formed by the insert (13).

2. Bottle according to claim 1, wherein the insert (13) is in the form of an elongated rod interposed between the inner surface of the neck (6) and the outer surface of the application tip (11) and which extends between the inner volume of the reservoir and the outside of the reservoir, said insert (13) causing a local transverse deformation of the application tip (11) which forms at least one channel (16) along the insert (13).

3. Bottle according to claim 1, wherein the insert (13) is substantially cylindrical and has an outer surface (18) which is mounted in contact with the inner surface (14) of the neck (6) and an inner surface (19) in contact with the application nozzle (11).

4. Bottle according to claim 3, wherein at least one channel (16) is formed by a groove (21) provided on the inner surface of the insert (13) or on the outer surface (18) of the insert (13).

5. Bottle according to claim 3, wherein the inner surface of the insert (13) has a rib (20) projecting from said inner surface (19) of the insert (13), said rib (20) extending between the inner volume (5) of the reservoir (2) and the outside of the reservoir (2), said rib (20) causing a local transverse deformation of the application nozzle (11) which forms at least one channel (16) along said rib (20).

6. Bottle according to any one of claims 3 to 5, wherein the insert (13) comprises a collar (22) which covers an upper face (23) of the neck (6), and wherein at least one channel (16) comprises a transverse portion (24) formed on the collar (22).

7. Bottle according to any one of the preceding claims, wherein the porous material comprises an entanglement of fibers.

8. Bottle according to any one of claims 1 to 6 wherein the porous material is a sintered plastic, metallic or ceramic material.

9. Bottle according to any one of claims 1 to 6, wherein the porous material is an open-cell foam.

10. Bottle according to any one of the preceding claims, wherein the reservoir is made of glass.

11. Bottle according to any one of the preceding claims, wherein the neck (6) is configured to receive a bottle closure cap (1) which can be snapped or screwed onto said neck (6).

Images