A device for packaging and dispensing cosmetic products, and related methods of use.

Abstract

The device (10) includes a container (12) which includes a reservoir (20) containing a cosmetic product (14) and a neck portion (22) defining a distribution channel (36), and a distribution tip (16) which is rigidly mounted in the distribution channel (36) and defines a distribution channel between an upstream inlet and a downstream orifice. The cosmetic product (14) has a viscosity of 0.001 Pa.s to 1.5 Pa.s, and the distribution channel is cleared between the upstream inlet and the downstream orifice and includes at least one adjustment region for adjusting the flow of the cosmetic product, having a transverse span of less than 2 mm relative to the axis of the channel, over a height measured in projection along an axis parallel to the axis of the channel of at least 5 mm.

Description

Technical Field

[0001] The present invention relates to a device for packaging and dispensing cosmetic products, - a container including a reservoir for containing the cosmetic product and a neck portion having a cylindrical downstream region defining a dispensing path for the cosmetic product, - a converging dispensing tip from the reservoir to a downstream orifice, the dispensing tip being rigidly mounted within the dispensing path and having an upstream inlet opening towards the reservoir and defining a dispensing channel for the cosmetic product that discharges downstream via the downstream orifice, and relates to a device comprising the above.

Background Art

[0002] Cosmetic products are, for example, hair products, hygiene products, face and / or body care products, makeup products, or sun protection products.

[0003] More generally, cosmetic products are products as defined in the Regulation (EC) No 1223 / 2009 of the European Parliament and of the Council of 30 November 2009 on cosmetic products.

[0004] For many applications in makeup, hair products, or care, it is necessary to accurately apply a controlled dose of cosmetic product onto the body surface. This application is generally carried out by pressing the deformable wall of a container that contains the product and extracts the product at the outlet of the tip.

[0005] Such application can be made difficult depending on the viscosity of the product being delivered, which can vary greatly from product to product, and the type of packaging device, which can be more or less rigid.

[0006] Subsequently, the need to apply considerable compression force to the packaging device often makes it difficult for users to obtain a sufficient quantity of product. On the other hand, applying excessive compression force often results in the delivery of excess product, which is difficult to store within the container.

[0007] Patent Document 1 describes a device for packaging and applying a makeup composition, wherein there is a 0.2 mm gap between the container and the dispensing orifice. 2 ~3mm 2 It is known to include a flexible tube container having a composition flow cross-section of a certain area, which allows for a fixed and controlled distribution of the composition on the application surface.

[0008] Further cosmetic product packaging and dispensing devices are described in Patent Documents 2 to 5.

[0009] However, such devices can be further improved, particularly to facilitate product administration by obtaining a more consistent product flow. [Prior art documents] [Patent Documents]

[0010] [Patent Document 1] International Publication No. 2015 / 028733 [Patent Document 2] Patent No. 05319446 [Patent Document 3] U.S. Patent Application Publication No. 20040245290 [Patent Document 4] U.S. Patent No. 7758553 [Patent Document 5] U.S. Patent Application Publication No. 20210244157 [Overview of the Initiative] [Problems that the invention aims to solve]

[0011] The object of the present invention is to provide a device for packaging and dispensing cosmetic products, which allows the user to easily control the flow and easily and accurately dispense the amount of cosmetic product at the outlet. [Means for solving the problem]

[0012] For this purpose, the present invention relates to a device for packaging and dispensing the above-described type of cosmetic product, wherein the cosmetic product has a viscosity of 0.001 Pa.s to 1.5 Pa.s, the dispensing channel is cleared between an upstream inlet and a downstream orifice, the dispensing channel includes at least one adjustment region for adjusting the flow of the cosmetic product, the adjustment region having a lateral span D3 with respect to the channel axis that is less than 2 mm, over a height H1 measured in projection along an axis parallel to the channel axis that is at least 5 mm, preferably at least 10 mm.

[0013] Surprisingly, by combining highly specific geometric parameters for the distribution channel with a viscosity suited to the cosmetic product being used, precise control of the flow and volume of the delivered product is achieved without the risk of overdistribution and without the need to apply excessive force to obtain the desired amount of product.

[0014] According to a modified form, the device for packaging and dispensing cosmetic products according to the present invention is - The distribution channel is conical in shape, and the ratio of the minimum lateral span to the maximum lateral span is 0.6 to 1. It includes the following characteristics.

[0015] The slightly conical geometric shape of the distribution channel precisely regulates the product flow circulating within the channel, thus helping to deliver a precisely controlled dose of product at the outlet of the distribution channel.

[0016] According to a modified form, the device for packaging and dispensing cosmetic products according to the present invention is - The downstream orifice, which is arranged downstream from the adjustment area, has an angular outlet opening greater than 15°, particularly greater than 45°. This includes the feature.

[0017] The wide angular outlet opening of the orifice reduces the speed of the product at the outlet of the distribution channel, ensures proper distribution, and, where applicable, prevents unnecessary excess material from blocking the outlet of the distribution channel.

[0018] According to a variant, a device for packaging and dispensing a cosmetic product according to the invention - The reservoir includes at least one side wall and a bottom, and when a force of 30 N is applied to the geometric center of the wall at a preloading speed of 20 mm / min, the side wall has a minimum average deformation greater than 1 mm, the minimum average deformation being particularly greater than 2 mm, and particularly between 3 mm and 5 mm. This includes the feature.

[0019] The presence of the side wall with the deformation features described above allows the reservoir to be flexible and easily compressed by the user with the pressure on the wall to deliver the desired dose of the cosmetic product.

[0020] According to a variant, a device for packaging and dispensing a cosmetic product according to the invention - The reservoir includes at least one side wall and a bottom, and when a force of 30 N is applied to the geometric center of the wall at a preloading speed of 20 mm / min, the side wall has a mean lack of springback greater than -8%, the mean lack of springback being particularly greater than -3%, and particularly between -1% and 0%. This includes the feature.

[0021] When the reservoir walls are deformed by the user applying pressure, and then the pressure is released, the elasticity of the walls returns to their original shape, preventing permanent deformation of the reservoir, while simultaneously creating a suction effect that allows excess cosmetic products inside the reservoir to be drawn out at will. The user can then dispense the exact amount of product to be delivered.

[0022] According to a modified form, the device for packaging and dispensing cosmetic products according to the present invention is - The minimum average deformation of the sidewall is 3mm to 5mm, and the average springback deficit of the sidewall is -1% to 0%. It includes the following characteristics.

[0023] The combination of the deformability and elasticity of the reservoir walls optimizes the use of packaging and storage devices, resulting in more precisely defined distribution without delivering excess product, thanks to easier and more controlled delivery.

[0024] According to a modified form, the device for packaging and dispensing cosmetic products according to the present invention is - The reservoir is made from a plastic material selected from polypropylene, polyethylene terephthalate, and high-density polyethylene. It includes the following characteristics.

[0025] The plastic material used to form the reservoir has adapted flexibility, resulting in its appropriate mechanical properties for application.

[0026] According to a modified form, the device for packaging and dispensing cosmetic products according to the present invention is - The reservoir is at least partially transparent, preferably completely transparent. - The dispensing tip is made of a material that is at least partially transparent, preferably completely transparent. It includes one of the following characteristics.

[0027] Partial or complete transparency of the reservoir and / or tip allows for better visual dispensing of the product volume being delivered, creating an aesthetic effect where the user can see the cosmetic product passing through the packaging and dispensing device.

[0028] According to a modified form, the device for packaging and dispensing cosmetic products according to the present invention is - The distribution tip includes multiple ribs for guiding the product toward the distribution channel. It includes the following characteristics.

[0029] The presence of multiple guide ribs within the tip for distributing cosmetic products toward the distribution channel allows the beads to be kept away from the outlet channel, preventing them from blocking it, when beads are used to homogenize a product that can be separated into phases. Furthermore, the ribs add an aesthetic aspect to the distribution tip, if they are partially or completely transparent.

[0030] Furthermore, the present invention relates to a method for using such a device for packaging and dispensing cosmetic products, - The step of providing the cosmetic product packaging and dispensing device described above, - The user applies pressure to the side wall of the reservoir with a force of 30N or less, - A step of delivering at least one dose of a cosmetic product onto the surface of the body. Regarding methods, including those mentioned above.

[0031] Further features and advantages of the present invention will become apparent upon reading the following description, which is given merely as an example, with reference to the accompanying drawings. [Brief explanation of the drawing]

[0032] [Figure 1] This is an exploded perspective view of a first product packaging and dispensing device, including the container and the dispensing tip. [Figure 2]This is a cross-sectional view of the first distribution tip along the midline vertical plane containing the central axis of the tip. [Figure 3] This is a cross-sectional view of the second distribution tip, along the midline vertical plane containing the central axis of the tip. [Modes for carrying out the invention]

[0033] Hereafter, the terms "upstream" and "downstream" are generally understood in relation to the normal distribution direction of the product in use.

[0034] A device 10 for packaging and dispensing cosmetic products according to the present invention is shown in Figure 1.

[0035] Device 10 extends along the central axis A-A', which is shown here as vertical in Figure 1.

[0036] The packaging and dispensing device 10 includes a container 12, a cosmetic product 14 contained within the container 12, and a tip 16 for dispensing the cosmetic product out of the container 12. In this example, the device 10 also includes a cap 18 at the top of Figure 1 that closes the container 12 in the downstream direction.

[0037] Cosmetic products 14 include, for example, hair products, hygiene products, face and / or body care products, makeup products, or sunscreen products.

[0038] According to the present invention, the cosmetic product has a viscosity of 0.001 Pa.s to 1.5 Pa.s.

[0039] The viscosity of the cosmetic product is measured at 25°C using a Rheomat 180 (LAMY) equipped with an MS-R1, MS-R2, MS-R3, MS-R4, or MS-R5 spindle, selected according to the viscosity of the cosmetic product, rotating at a rotational speed of, for example, 200 rpm. The measurement is taken after 10 minutes of rotation. Viscosity measurements are taken no more than one week after the manufacture of the cosmetic product 14.

[0040] The container includes a reservoir 20 and a neck portion 22.

[0041] The reservoir 20 is made of a polymer, particularly selected from polypropylene, high-density polyethylene, and polyethylene terephthalate. It is advantageous for the reservoir 20 to be partially or completely transparent. The term "transparent" means that the interior of the reservoir 20 is visible to the naked eye from the outside of the reservoir 20.

[0042] The reservoir 20 in this example has side walls 24, a bottom 26, and a downstream edge 28. In this example, the reservoir 20 has an elongated shape along an extension axis B-B' perpendicular to the central axis A-A'.

[0043] The internal volume of reservoir 20 is greater than 10 mL, for example, between 15 mL and 100 mL.

[0044] The side wall 24 of the reservoir 20 has a minimum mean deformation greater than 1 mm when a force of 30 N is applied to the geometric center of the side wall 24 at a preloading rate of 20 mm / min. The geometric center is taken as a projection in the vertical plane, and the bottom 26 is located on the horizontal plane. The minimum mean deformation is greater than 2 mm, and is particularly favorable if it is between 3 mm and 5 mm, as it is a projection in the vertical plane.

[0045] The deformation of the sidewall 24 subjected to a force of 30N is measured at 25°C as the difference in height of the reservoir 20 between the pre-deformation structure and the deformed structure, when the applied force reaches 30N, and the reservoir is located above the sidewall 24. Three tests are performed on each side of the sidewall 24, and the average deformation in millimeters is calculated with respect to the reservoir 20.

[0046] Furthermore, the side wall 24 of the reservoir 20 has an average springback deficit greater than -8% after a force of 30N is applied to the geometric center of the side wall 24 at a preloading rate of 20 mm / min. As described above, the geometric center is taken as a projection within the vertical plane on the wall, and the bottom 26 is located on the horizontal plane. An average springback deficit greater than -3%, and particularly favorable if it is between -1% and 0%, is preferred.

[0047] Springback deficiency is measured as the residual deformation of the sidewall 24 of the reservoir 20 as a percentage after the release of a 30N force during the tests conducted as described above. Three tests are performed on each side of the sidewall 24, and the average springback deficiency is determined for the reservoir 20.

[0048] The side wall 24 is preferable to have a minimum average deformation greater than 1 mm and an average springback deficit greater than -8% after a force of 30 N is applied to the geometric center of the wall at a preloading rate of 20 mm / min. A minimum average deformation of 3 mm to 5 mm and an average springback deficit of 1% to 0% are particularly preferable.

[0049] In the example shown in Figure 1, the neck portion 22 includes a cylindrical downstream region 30 and an upstream region 32 that extends upstream from the downstream region 30 to an upstream edge 34 that extends the downstream edge 28 of the reservoir 20.

[0050] The downstream region 30 is a cylindrical shape surrounding the central axis A-A', which is vertical in Figure 1.

[0051] The cylindrical downstream region 30 defines an internal distribution channel 36, where the cosmetic product 14 flows before being distributed.

[0052] In this particular example, the upstream edge 34 of the upstream region 32 has an elongated shape along the extension axis B-B' perpendicular to the central axis A-A'. In this example, the shape of the upstream edge 34 is elliptical and has two end portions connected by two transverse portions with a greater curvature than the end portion. The upstream edge 34 and the downstream edge 28 define a shoulder portion for supporting the cap 18.

[0053] As shown in Figure 1, the distribution tip 16 is firmly attached inside the inner distribution path 36 of the neck portion 22.

[0054] The distribution tip 16 distributes cosmetic products downstream from the inner distribution channel 36. As seen in Figures 1 and 2, the distribution tip 16 has a cylindrical upstream region 38 that is firmly engaged within the inner distribution channel 36, and a downstream region 40 that protrudes axially beyond the neck portion 22 and has a downstream converging shape, such as a truncated shape.

[0055] The downstream region 40 of the convergent shape is formed by an outer skirt portion including an inner surface 42 and an outer surface 44, as can be seen in Figure 2.

[0056] It is advantageous for the distribution tip 16 to be partially or completely transparent. The term "transparent" means that the interior of the tip 16 is visible to the naked eye from the outside of the tip 16.

[0057] The distribution tip 16 includes a distribution channel 46 for the cosmetic product 14, which is defined by an inner cylindrical skirt portion extending within the outer skirt portion. The distribution channel 46 extends between the upstream inlet 48 and the downstream orifice 50.

[0058] The distribution tip 16 includes a rib portion 52 for supporting the channel and guiding the cosmetic product to be placed between the inner skirt portion and the outer skirt portion.

[0059] The support rib portion 52 includes a first radial portion with respect to the axis A-A' projecting axially from the distribution channel, and a second curved portion connecting the radial portion to the inner surface 42, extending from the outer skirt portion defining the distribution channel 46 to the inner surface 42.

[0060] Each support rib portion 52 connects its inner skirt portion to the inner surface 42. The support rib portions 52 are distributed in such a way as to form a spiral shape inside the distribution tip portion 16.

[0061] As can be seen in Figure 2, the support rib portion 52 protrudes upstream from the upstream inlet 48 of the distribution channel 46.

[0062] In cases where the distribution tip 16 is partially or completely transparent, the support rib portion 52 adds an aesthetic effect.

[0063] The distribution channel 46 extends axially along axis A-A' and is completely cleared between the upstream inlet 48 and the downstream outlet orifice 50.

[0064] In the example shown in Figure 2, the distribution channel 46 is conical in shape and extends from the upstream inlet 48 toward the downstream orifice 50. The distribution channel has a maximum lateral span D1 at the downstream orifice 50 and a minimum lateral span D2 at the upstream inlet 48. The ratio of the minimum lateral span D2 to the maximum lateral span D1 is, for example, 0.6 to 1.

[0065] The downstream outlet orifice 50 forms a downstream spread 54 with an angular span Ψ greater than 15°, and especially greater than 45°, with respect to the axis A-A' of the distribution channel 46.

[0066] The distribution channel 46 includes an adjustment region 56 for adjusting the flow of cosmetic products, which extends upstream from the downstream orifice 50 along axis A-A'.

[0067] The adjustment region 56 has a transverse span D3 with respect to axis A-A' that is less than 2 mm, over a height H1 measured by projection along axis A-A' that is at least 5 mm, for example, longer than 10 mm.

[0068] The cross-sectional area of ​​the distribution channel 46 within the adjustment region 56 is 2 mm². 2 Smaller than, especially 0.7mm 2 ~1.5mm 2 That is the case.

[0069] The closing cap 18 shown in Figure 1 is detachably mounted on the neck portion 22, with a position on the neck portion 22 where the cap 18 covers the distribution tip portion 16 and the cylindrical downstream region 30, and a position where the distribution tip portion 16 is free.

[0070] Cap 18 here defines an elliptical outer closing cap 58 that is extended along axis B-B'.

[0071] The cap 18 includes an axial sealing rod tip 60 that protrudes upstream from the center of the closing wall 58. When the cap 18 is in its mounted position on the neck portion 22, the rod tip 60 is firmly inserted into the downstream distribution orifice 50.

[0072] To use the device, the closing cap 18 is switched from its mounted position to its detached position.

[0073] The user then applies pressure to the side wall 24 of the reservoir 20. The cosmetic product 14 is pressed and directed toward the dispensing tip 16 toward the application surface of the body, such as the back of the hand or fingers.

[0074] The flexibility of the side walls 24 of the reservoir 20, combined with the dimensions of the inner distribution channel 36 and the specific viscosity of the cosmetic product 14, allows the user to supply sufficient pressure without requiring excessive force to distribute the cosmetic product 14.

[0075] The dimensions of the cosmetic product flow adjustment area 56 and the geometric shape of the downstream orifice 50 of the distribution tip 16 ensure the precise and controlled distribution of the product.

[0076] Once the user has delivered the desired amount of cosmetic product 14, the user releases the pressure applied to the side wall 24 of the reservoir 20. Due to the springback of the side wall 24 of the reservoir 20, the reservoir 20 returns to its initial shape, and the excess cosmetic product 14 is drawn into the reservoir 20 by suction. The dispensing tip 16 thus remains clean, free from excess cosmetic product accumulated and wasted around the tip.

[0077] After use, the closing cap 18 is returned to its attached position on the neck portion 22.

[0078] As an example, we conducted several tests.

[0079] [Table 1]

[0080] Mechanical tests were conducted on polyethylene terephthalate, high-density polyethylene, and polypropylene. For each material, several reservoirs 20 were tested, distinguished by the thickness of their sidewalls 24 and therefore by their mass.

[0081] A force of 30 N was applied to the geometric center of the side wall 24 of the reservoir 20 in vertical projection at a preloading rate of 20 mm / min. The deformation of the side wall 24 subjected to the 30 N force was measured and recorded.

[0082] As specified above, three tests were performed on each side of reservoir 20, and the average deformation in millimeters was calculated for each reservoir 20, characterized by the material and a specific mass ("Average" column in Table 1).

[0083] Similarly, the average springback deficiency was determined for each reservoir 20. The springback deficiency (the "Spring Effect" column in Table 1) corresponds to the residual deformation of the side wall 24 of the reservoir 20 as a percentage after the release of the 30N force.

[0084] The sufficient deformation of the sidewall 24 of the reservoir 20, combined with smaller residual plastic deformation, not only eliminates the need for the user to compress the reservoir 20 and thus apply excessive force to deliver the cosmetic product 14, but also enables the delivery of a precise amount of cosmetic product 14 in a controlled manner. The springback of the sidewall 24 induces an suction effect of residual cosmetic product 14 that is drawn into the reservoir 20 when the user releases the pressure. Better dispensing of the delivered amount is thus obtained, the dispensing tip 16 remains clean, and excess product does not fill the downstream outlet orifice 50.

[0085] [Table 2]

[0086] Distribution tests were conducted on various types of cosmetic products (moisturizing creams, foundations, serums, hair care products, etc.) with viscosities ranging from 0.001 Pa.s to 1.5 Pa.s.

[0087] Containers 12 of various masses, including containers 20 made of polyethylene terephthalate, were used to package and dispense cosmetic products 14.

[0088] In a vertical projection, a pre-loading force of 5 N was applied at the geometric center of the side wall 24 of the reservoir 20 at a pre-loading rate of 20 mm / min, followed by a force of 30 N at a pre-loading rate of 165 mm / min. Ten load / unloading cycles were performed. The controllability of the distributed cosmetic product flow 14 and the return rate corresponding to the amount of product re-delivered for the desired dose were determined and recorded in Table 2.

[0089] Viscosities ranging from 0.001 Pa.s to 1.5 Pa.s demonstrate satisfactory results in terms of both product flow control and return rate.

[0090] According to the second embodiment shown in Figure 3, the distribution channel 46, which extends from the downstream orifice 50 toward the upstream inlet 48 and has a maximum lateral span D4 at the upstream inlet 48 and a minimum lateral span D5 at the downstream orifice 50, is conical in shape. The ratio of the minimum lateral span D5 to the maximum lateral span D4 is, for example, 0.6 to 1. [Explanation of symbols]

[0091] 10. Devices for packaging and dispensing cosmetic products. 12 containers 14 Cosmetic Products 16 Tip, dispensing tip 18 caps, closing caps 20 reservoirs, containers 22 Neck section 24 Side wall 26 Bottom 28 Downstream edge 30 Cylindrical downstream region 32 Upstream region 34 Upstream edge 36 Inner distribution channel 38 Cylindrical upstream region 40 Downstream area 42. Inner self 44 Exterior 46 distribution channels 48 Upstream entrance 50 Downstream orifice, downstream exit orifice, downstream distribution orifice 52 Rib section, support rib section 54. Downstream expansion 56 Adjustment area, cosmetic product flow adjustment area 58. Outer closing cap, closing wall 60 Axial sealing rod tip A-A' axis, central axis B-B' extension axis D1 (Maximum lateral span of the downstream orifice) D2 (Minimum transverse span of the upstream inlet) D3 Horizontal Span D4 (Maximum transverse span of the upstream entrance) D5 (Minimum lateral span of the downstream orifice) H1 Height Ψ Angle span

Claims

1. A device (10) for packaging and dispensing cosmetic products, - A container (12) including a reservoir (20) for containing cosmetic products (14) and a neck portion (22) having a cylindrical downstream region (30) defining a distribution channel (36) for the cosmetic products (14), - A convergent distribution tip (16) extending from the reservoir (20) to the downstream orifice (50), the convergent distribution tip (16) being firmly attached within the distribution path (36), having an upstream inlet (48) opening toward the reservoir (20), and defining a distribution channel (46) for the cosmetic product (14) that discharges downstream via the downstream orifice (50), In a device (10) including, The cosmetic product (14) has a viscosity of 0.001 Pa.s to 1.5 Pa.s, the distribution channel (46) is cleared between the upstream inlet (48) and the downstream orifice (50), the distribution channel (46) includes at least one adjustment region (56) for adjusting the flow of the cosmetic product, the adjustment region (56) has a transverse span D3 of the distribution channel with respect to the axis that is less than 2 mm, over a height H1 measured by projection along an axis parallel to the axis of the distribution channel, which is at least 5 mm, preferably at least 10 mm. A device (10) for packaging and dispensing cosmetic products.

2. The distribution channel (46) is conical in shape, and the ratio of the minimum lateral span (D2; D5) to the maximum lateral span (D1; D4) is 0.6 to 1, the device (10) for packaging and distributing cosmetic products according to claim 1.

3. The device (10) for packaging and dispensing cosmetic products according to claim 1 or 2, wherein the downstream orifice (50) located downstream from the adjustment region (56) has an angular exit opening (Ψ) greater than 15°, particularly greater than 45°.

4. A device (10) for packaging and dispensing cosmetic products according to any one of claims 1 to 3, wherein the reservoir (20) includes at least one side wall (24) and a bottom (26), and when a force of 30 N is applied to the geometric center of the side wall at a preloading rate of 20 mm / min, the side wall (24) has a minimum mean deformation greater than 1 mm, the minimum mean deformation being greater than 2 mm in particular, and particularly between 3 mm and 5 mm.

5. A device (10) for packaging and dispensing cosmetic products according to any one of claims 1 to 4, wherein the reservoir (20) includes at least one side wall (24) and a bottom (26), and when a force of 30 N is applied to the geometric center of the side wall at a preloading rate of 20 mm / min, the side wall (24) has an average springback deficit greater than -8%, the average springback deficit is particularly greater than -3%, and particularly between -1% and 0%.

6. A device (10) for packaging and dispensing cosmetic products according to claim 5, referencing claim 4, wherein the minimum average deformation of the side wall (24) is 3 mm to 5 mm, and the average springback deficit of the side wall (24) is -1% to 0%.

7. The device (10) for packaging and dispensing cosmetic products according to any one of claims 1 to 6, wherein the reservoir (20) is made of a plastic material selected from polypropylene, polyethylene terephthalate, and high-density polyethylene.

8. The device (10) for packaging and dispensing cosmetic products according to any one of claims 1 to 7, wherein the reservoir (20) is at least partially transparent, preferably completely transparent.

9. The converging dispensing tip (16) is made of a material that is at least partially transparent, preferably completely transparent, the device (10) for packaging and dispensing cosmetic products according to any one of claims 1 to 8.

10. The converging distribution tip (16) includes a plurality of rib portions (52) for guiding the cosmetic product (14) toward the distribution channel (46), the device (10) for packaging and distributing a cosmetic product according to any one of claims 1 to 9.

11. A method for distributing a cosmetic product (14) onto the surface of the body, - A step of providing a device (10) for packaging and dispensing the cosmetic product according to any one of claims 1 to 10, - A step in which the user presses the side wall (24) of the reservoir (20) with a force of 30N or less, - A step of delivering at least one dose of a cosmetic product (14) onto the body surface, Methods that include...

12. The method according to claim 11, wherein the release of the pressure applied by the user induces the retraction of the cosmetic product (14) due to the springback of the side wall (24) that has been deformed by the user.

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