Applicator for liquid or pasty product

Abstract

The invention relates to an applicator (10) for a liquid or pasty product, comprising a core (14) extending in a longitudinal direction (X) and having first bristles (20) and second bristles (30) projecting therefrom, the first bristles (20) forming recesses (22) for receiving the liquid or pasty product and the second bristles (30) having a first section and tapering circumferentially from the first section toward a second section forming an edge (34), wherein at least one group of first bristles (20) is adjacent to at least one group of second bristles (30) in the circumferential direction.

Description

APPLICATOR FOR LIQUID OR PASTY PRODUCTS DESCRIPTION technical field

[0001] This presentation concerns the field of cosmetics, and more specifically an applicator for liquid or paste products. Such an applicator allows a user to apply a product, for example a cosmetic product like mascara, to the skin or to keratin fibers such as eyelashes, eyebrows, or hair. Previous technique

[0002] There are many types of applicators for liquid or paste products. For example, document WO 2020 / 025862 describes a mascara applicator consisting of a core with bristles that are at least partially flexible, designed to avoid pricking the user's skin and to ensure even distribution of the product. In practice, however, such an applicator does not sufficiently separate the eyelashes and can lead to clumping of mascara.

[0003] Furthermore, document WO 2014 / 195914 describes a mascara applicator with asymmetrical and rigid teeth. Such an applicator allows the eyelashes to be combed, grouping them into small, distinct clumps. However, the distribution of cosmetic product obtained with such an applicator could be improved, as the teeth alone do not ensure even distribution of the product on the eyelashes.

[0004] The invention aims at least to partially remedy these drawbacks. Description of the invention

[0005] To this end, the present description concerns an applicator for liquid or paste products, comprising a core extending in a longitudinal direction from which first and second protruding protrusions emerge, the first protrusions forming concave cavities to receive the liquid or paste product and the second protrusions having a first cross-section and tapering down circumferentially from the first section to a second section forming an edge, in which at least one group of first picots is adjacent to at least one group of second picots in the circumferential direction.

[0006] The liquid or paste product can be a cosmetic, aesthetic, or skincare product, such as mascara, balm, cream, etc. For the sake of brevity, we will also refer to the liquid or paste product to be applied as a "formula." Subsequently, for better readability without sacrificing generality, we will use the example of applying the formula to eyelashes, but other keratin fibers or other surfaces can, of course, be used to apply the formula using the applicator provided.

[0007] The longitudinal direction along which the core extends primarily can be straight or curved. The longitudinal direction can follow the core axis itself, defined by the core's neutral axis, that is, the line connecting the centroids of successive cross-sections of the core. A radial direction is a direction perpendicular to the longitudinal direction and intersecting the core axis. Similarly, a longitudinal plane is a plane containing the core axis, and a radial plane is a plane perpendicular to the core axis. A circumference is understood as a circle lying on a radial plane and whose center lies on the core axis. A tangential or circumferential direction is a direction tangent to a circumference; it is perpendicular to the core axis but does not pass through it.

[0008] Unless otherwise specified, the adjectives inside and outside are used with reference to a radial direction so that the inside part of an element is, along a radial direction, closer to the axis of the core than the outside part of the same element.

[0009] The first and second spikes protrude from the soul. They may or may not have originated from matter with the soul. They may extend transversely with respect to the soul, that is to say, present at least one non-zero component in the radial direction and / or in the circumferential direction.

[0010] For the purposes of this presentation and unless otherwise indicated, the mention of a "first" element, such as a first picot or a first edge, does not necessarily imply the existence of a "second" element nor, where applicable, of an order relationship between the first and second elements. Typically, the first picots are picots of a first type, while the second picots are picots of a second type, and so on. Thus, ordinal qualifiers are used in this context solely for clarity and identification, without implying any particular characteristics. Similarly, and conversely, mentioning a higher-ranking element (third, etc.) does not imply that lower-ranking elements, such as a possible second element, exist and / or possess the characteristics that may have been described elsewhere.

[0011] For the sake of brevity, the mention of "picots" without specifying an ordinal qualifier refers to the first or second picots depending on the context, or, failing that, to both the first and second picots indiscriminately. The same applies to the third picots introduced below.

[0012] For the purposes of this presentation, the properties presented in relation to the picots can apply collectively to all the picots or individually to all or part of the picots, in particular to each of the picots.

[0013] The first few teeth form cavities to hold the formula. A given cavity can be formed by a single first tooth, by several first teeth together, or between one or more first teeth and the core. The cavity exploits the surface tension exerted on the formula to retain a greater quantity of it.

[0014] The second set of teeth tapers from a first section to a second section, forming an edge. A section refers to a localized portion of the second tooth. The fact that the second section forms an edge (also called the second edge) implies that the second section is located at a circumferential end of the second tooth, while the first section can form the opposite edge (also called the first edge) or be located in an intermediate portion of the second tooth. The first and second edges can be symmetrical or different. Ideally, the second teeth taper from the first section to the second edge in a monotonic and / or continuous manner. For example, the longitudinal thickness of the first section is greater than the longitudinal thickness of the second edge. The thinner second edge can be located on the side of the first teeth that is adjacent to the second teeth.

[0015] Because a group of first bristles is adjacent to at least one group of second bristles in the circumferential direction, the applicator user can, with a single circumferential rotation, apply the formula successively using first and second bristles. While the first bristles, thanks to their concave shape, deliver a good amount of formula, the second bristles, with their second tapered edge, engage the lashes and comb them evenly, distributing the formula homogeneously. Thus, the applicator, with its different types of bristles, allows for easy and effective formula application.

[0016] In some embodiments, the first and second pins are arranged in respective rows. A row is defined as an alignment of pins in a straight, curved, or piecewise direction, for example, without a point of inflection or, conversely, including one or more meanders. In one embodiment, the rows may have a non-zero component in the longitudinal direction. For example, the rows may extend purely or substantially in the longitudinal direction, or helically around the core. However, straight rows parallel to the longitudinal direction provide a uniform coating result.

[0017] Several successive rows of bristles can be arranged in the circumferential direction, for example, one or more rows of first bristles followed by one or more rows of second bristles, and so on. Each row can form one of the bristle groups mentioned previously. The at least one row of first bristles and / or the at least one row of second bristles may or may not be equidistant from each other in the circumferential direction. The rows can extend over the entire working area of ​​the applicator. As an example, the at least one row of first bristles and the at least one row of second bristles may be of equal length in the longitudinal direction and / or arranged side by side in the circumferential direction.

[0018] In some embodiments, the first or second pins of the same row have the same orientation. The orientation of a pin refers to its position relative to its possible rotations, taking as a reference the surface of the core on which the pin rests. is implemented. For example, the first few bumps in a row can all have their concave sides facing the same direction. As another example, the second few bumps in a row can all have their second edges facing the same direction. This simplifies the application process, ensuring even coverage within each row.

[0019] In some embodiments, the spacing between the first bristles of the same row differs from the spacing between the second bristles of the same row. The spacing refers to the distance between two consecutive bristles in a row. In these embodiments, the difference in spacing introduces an offset between the first and second bristles, allowing for more even combing of the lashes, as one row can potentially break up clumps created by the other row. The spacing can be constant when the bristles in the same row are equidistant, or variable when the distance between two consecutive bristles varies. Furthermore, an offset between the first and second bristles could also be achieved without a difference in spacing.

[0020] In some embodiments, the spacing between the first pegs in a row is greater than the spacing between the second pegs in a row, for example, by a factor strictly between 1 and 2. In other words, the first pegs in a row can be spaced further apart than the second pegs in a row. This ensures a good balance between the initial pegs' ability to deliver the formula and the subsequent pegs' capacity to distribute it.

[0021] In some embodiments, along one of the rows, the radial height of the first and / or second pins has a local minimum in an intermediate portion of said row. The radial height is defined as the distance between the axis of the core and the distal, generally free, end of the pins, regardless of the outer surface of the core on which the pins are mounted. For example, the pins may be shorter in the intermediate portion and longer at the ends of the row, particularly with a core of constant thickness, or the pins may be of the same length and mounted on a thinner core in the intermediate portion and a thicker one at the ends. Intermediate configurations are, of course, also possible.

[0022] The first and second adjacent circumferential studs can have the same radial height or different radial heights, depending on the desired effect.

[0023] In these embodiments, the local minimum height defines a recessed shape, sometimes called a figure-eight or hourglass shape if it has a single recess and rotationally symmetrical. This shape allows more formula to be released in the mid-portion, resulting in faster formula loading of the lashes. Furthermore, this elegant, optionally symmetrical shape is intuitive and ergonomic to apply.

[0024] In some embodiments, the first bristles include at least one flexible portion, preferably in their proximal end. The proximal end may refer to the base of the first bristle that connects to the core, and / or a portion of the first bristle located between the core and the distal end. In particular, the flexible portion is more flexible than the second bristles, or even, where applicable, than the distal end of the first bristles. These arrangements create a formula pumping effect when the first bristles come into contact with the eyelashes, thus facilitating the transfer of formula from the applicator to the eyelashes. Furthermore, the flexible portion allows the bristle to deform to avoid pricking the user's skin.

[0025] In some embodiments, the concavities are formed by the proximal portion of the first bristles. The proximal part of the first bristles thus acts as a reservoir for the formula, which allows the distal part of the first bristles, in contact with the cilia, to deposit a sufficient but even layer of formula.

[0026] In some embodiments, the second set of pins has a first edge and tapers from the first edge to the second, circumferentially opposite edge formed by the second section. In these embodiments, the second set of pins is delimited, in the circumferential direction, by a first edge and a second edge opposite to each other. A straight line connecting the first and second edges thus forms an angle of at most 60°, preferably at most 45°, preferably at most 30°, preferably at most 10° with a circumferential direction.

[0027] In some embodiments, the second set of pegs has its second edge thicker than its first edge. The second edge is thinner. The first edge can be swollen in a direction other than that in which it is thinned; for example, if the second edge is thinned to a longitudinal thickness less than that of the first section (or even, where applicable, the first edge), it can be more swollen than the first edge in the circumferential direction when viewed from the proximal to the distal end. The second edge can be convex, while the first edge can be less convex, for example, straight or even concave. The increased swollenness of the second edge allows for more gradual penetration of the eyelashes, and therefore a better separation effect.

[0028] In some embodiments, the second set of bristles tapers from their proximal to their distal end. This tapering, which can be monotonous and / or continuous, also allows for more gradual penetration of the lashes, and therefore a better separation effect.

[0029] In some embodiments, two circumferentially adjacent first pins protrude from the core in different, preferably opposite, orientations. These two circumferentially adjacent first pins may belong to two successive rows of first pins. Two orientations are said to be different if the first pins in question are obtained, relative to each other, by a rotation of at least 30°, preferably at least 45°, around at least one axis of the pin. Two orientations are said to be opposite if the first pins in question are obtained, relative to each other, by a rotation of approximately 180° (for example, between 135° and 225°) around at least one axis of the pin. Different orientations of the first pins, and a fortiori opposite ones, allow for variation in the position of the concavities. This ensures that the adjacent rows of first pins provide a homogeneous distribution of the formula.

[0030] In some embodiments, the core terminates longitudinally with an end bearing third bristles extending in a general direction with a non-zero longitudinal component. Such an end allows the user to use the brush transversely (for example, vertically instead of horizontally for eyelashes) to perform finishing touches to their formula application.

[0031] In some embodiments, the third pegs are different from the first pegs. For example, the third pegs may have all or some of the characteristics of the second pegs. Brief description of the drawings

[0032] Other features and advantages of the object of this presentation will emerge from the following description of embodiments, given by way of non-limiting examples, with reference to the attached figures.

[0033] Figure 1 is a perspective view of an applicator according to one embodiment.

[0034] Figure 2 is a side view of the applicator of Figure 1 along direction II.

[0035] Figure 3 is a front view of the applicator of Figure 1 along direction III. Detailed description

[0036] An applicator 10 according to one embodiment is shown with reference to Figures 1 to 3. The applicator 10 is an applicator for applying a liquid or paste product, also called a formula, to a part of the body, preferably to the keratin fibers of a user. For the sake of brevity and without loss of generality, the use of the applicator 10 as a mascara applicator for eyelashes will be detailed below, but as detailed previously, other uses are possible both for the formula to be applied and for the part of the body that receives it.

[0037] To facilitate its handling, the applicator 10 can be fitted with a handle 12. The handle 12 can be freestanding or configured to be mounted on a gripping rod, not shown. Such a handle 12 is known as such.

[0038] The applicator 10 also includes a core 14 extending along a longitudinal direction X. The longitudinal direction X is rectilinear here but could be curved, for example. Furthermore, the core 14 has a cylindrical shape with a circular base, but it could be non-cylindrical, for example conical or more generally of variable thickness, and / or have a non-circular base, for example elliptical, polygonal or otherwise.

[0039] The core 14 includes an end 16 opposite the handle 12 and a useful part 18 between the handle 12 and the end 16. The end 16 will be described later.

[0040] The first set of pins 20 and the second set of pins 30 protrude from the core 14, specifically from its functional portion 18. The pins 20 and 30 may or may not be integral to the core 14, for example, overmolded onto it. For instance, the core 14 may be made of a plastic such as a polyester-based thermoplastic elastomer (e.g., DuPont's Hytrel 45D - registered trademarks; a styrene-free thermoplastic elastomer; a bio-based plastic; a polysiloxane), while the pins may be made of the same material as the core 14 or of a different material, for example, from those mentioned previously. The hardness of the material used may be between 45 Shore A and 75 Shore D.

[0041] The first pins 20 form concavities 22 to receive the formula. The concavities 22 are hollows or recesses in which the formula can fit and, by surface tension, be held in place. The concavity is preferably open so as to allow the formula to rise outwards, along the first pin 20.

[0042] As can be seen from figures 1 and 2, the first pins 20 can include a half-arch shape whose interior forms a concavity 22. Other shapes are of course envisaged to form a concavity 22, for example J, L, T shapes, etc.

[0043] In this case, the concavity 22 is formed by a single first pin 20, so that each first pin 20 defines such a concavity 22. As an example, each concavity 22 can be formed by the proximal portion 24 of a first pin 20, the proximal portion 24 assuming the aforementioned half-arch shape. In this instance, the proximal portion 24 is anchored to the web 14 in the radial direction and curves gradually, here in the longitudinal direction X. A symmetrical form is also considered: the proximal portion 24 could be anchored to the web 14 with a non-zero longitudinal component at its base, and curve gradually so as to decrease its longitudinal component to become essentially radial.

[0044] Furthermore, other configurations are still possible: the proximal portion 24 could curve, alternatively or in addition, in the circumferential direction. Moreover, the proximal portion 24 could be anchored in the web 14 in an inclined manner with respect to a radial direction; then, the angle formed between the first pin 20 and the web 14 would induce the presence of a concavity formed between the first pin 20 and the web 14, independently of the shape of the proximal portion 24. According to other examples, the concavity 22 can be formed between two first pins 20 close to each other and inclined with respect to each other so as to form, together, a hollow shape constituting a concavity.

[0045] The first pins 20 may include a distal portion 26 which may optionally be straight. In this case, the distal portion 26 extends in the radial direction from the end of the proximal portion 24 opposite the core 14. The junction between the proximal portion 24 and the distal portion 26 may form an angle, for example between 45° and 165°, preferably between 70° and 110°.

[0046] Furthermore, the first bristles 20 may include at least one flexible portion. In this case, the flexible portion may be the proximal portion 24, the distal portion 26, or the junction between the proximal portion 24 and the distal portion 26. The distal portion 26 may, however, be made more rigid than the flexible portion in order to properly comb the eyelashes during the passage of the applicator 10.

[0047] The first 20 pins can taper from their proximal end 24a to their distal end 26a, preferably in a monotonous and / or continuous manner. This allows for good anchoring in the core 14 while providing a fine tip for precise formula application.

[0048] The distal portion 26 can be offset, longitudinally and / or circumferentially, from the point where the proximal portion is anchored in the web 14, i.e. from the proximal end 24a.

[0049] The second set of pins 30 has a first cross-section and tapers circumferentially from this first section towards, or even to, a second section forming a second edge 34. In cross-section along a tangential plane, the second pins 30 may have a tapered shape, for example, substantially triangular or trapezoidal. In the embodiment shown, without loss of generality, the first section is formed by a first edge 32 circumferentially opposite the second edge 34.

[0050] In this case, the first edge 32 can be planar, for example contained in a radial plane. The first section can have a longitudinal thickness which varies in the radial direction (see Figure 1), for example, by thinning from its proximal end 36 to its distal end 38. In some embodiments, the proximal end 36 widens from its anchoring point in the web 14 to a maximum thickness. Having a widening proximal end 36 allows, particularly when the second pin 30 is relatively long, a certain degree of flexibility relative to the web 14 while maintaining its intrinsic rigidity.

[0051] The second edge 34 can have a thickness substantially zero, that is to say, it can take the form of an edge, optionally rounded, as shown in figures 1 and 2.

[0052] Furthermore, the second edge 34 may be more bulging than the first edge 32, particularly in the circumferential direction: the circumferential distance between the two points on the second edge 34 that are circumferentially farthest from each other is greater than the circumferential distance between the two points on the first edge 32 that are circumferentially farthest from each other. For example, in the circumferential direction, the second edge 34 may have a bulge. By comparison, the first edge 32 may, as mentioned above, be flat.

[0053] Furthermore, the second pins 30 can generally be flat, meaning they extend more in the radial and circumferential directions than in the longitudinal direction, or, in other words, extend primarily along radial planes. In particular, the maximum circumferential width of a second pin 30 can be greater, for example, at least 1.5 or 2 times greater, than the maximum longitudinal thickness of the second pin 30.

[0054] As illustrated in Figures 1 to 3, several first pins 20 and several second pins 30 are provided on the web 14 and are organized into groups, in this case into respective rows which may or may not extend along the longitudinal direction X. Thanks to the fact that at least one group of first pins 20 is adjacent to at least one group of second pins 30 in the circumferential direction, a sufficient and homogeneous application of the formula can be obtained.

[0055] In this case, the applicator includes on its useful part 18 a pattern formed by three rows of first bristles 20 and one row of second bristles 30. This pattern can be repeated in the circumferential direction, in the occurrence once (i.e., two occurrences of the pattern). Of course, a different ratio of rows of first pegs 20 and rows of second pegs 30 could be adopted, and the chosen pattern could be implemented a different number of times: either once, or three times or more.

[0056] Figure 2 illustrates more clearly the orientation of the bristles 20 and 30 within the different rows. It can be assumed that the first bristles 20 and / or second bristles 30 of the same row will have the same orientation. Figure 2 clearly shows that the first bristles 20, which are aligned in the longitudinal direction X and thus form a row, have concavities 22 that are all open on the same side. In particular, the portions of the first bristles 20 that define the concavities 22—that is, here, the proximal portions 24—are defined in planes that are parallel to each other (in this case, even coincident). Similarly, but independently, the distal portions 26 are parallel to each other and aligned in the same longitudinal plane, which allows for precise combing of the eyelashes during the passage of the applicator 10.

[0057] Figure 2 also shows that the second set of pins 30, which are aligned in the longitudinal direction X, and therefore form a row, have their respective chords (the straight segment connecting the first edge 32 and the second edge 34) all parallel to each other.

[0058] Conversely, it can be provided that two circumferentially adjacent first bristles 20, for example belonging to two consecutive rows, protrude from the core 14 in different, preferably opposite, orientations. This is particularly visible in Figure 2: the upper half of Figure 2 shows a row of first bristles 20A with their concavity 22 facing the end 16 of the core 14, while in the adjacent row shown in the background, the first bristles 20B have their concavity 22 facing the handle 12. This can result, as illustrated, in a misalignment between the distal parts 26 of the different rows of first bristles 20A, 20B. This difference in orientation, especially when the orientations are opposite as illustrated, makes it possible to form a network that processes the cilia precisely and completely.

[0059] The pegs 20 and 30 may or may not be equidistant within the same row. Figure 2 also shows that the spacing of pegs 20 and 30 may vary from one row to another. In this case, the spacing may be the same from one row to the next of first pegs 20. However, the spacing between the first pegs 20 in the same row can be different from the spacing between the second pegs 30 in the same row. This results in the first pegs 20 being offset from the second pegs 30. Typically, the spacing between the first pegs 20 in the same row can be greater than the spacing between the second pegs 30 in the same row: thus, along segment S in Figure 2, parallel to the rows, there are seven first pegs 20 and eight second pegs 30.

[0060] Figure 2 also illustrates that the radial height H of the pins 20 and 30 can vary along a row. Although this is shown for the first pins 20B, it can also apply, alternatively or in addition, to other rows of first pins 20 as well as to the second pins 30. It should be noted that, as illustrated in Figure 3, the radial height H of the pins is defined by an envelope E that can be circular around the axis of the core 14. In other words, pins 20 and 30 located in the same longitudinal position have the same radial height. The envelope E circumscribes the parts radially outside the first pins 20 and second pins 30.

[0061] In this case, the radial height H may exhibit a local minimum in an intermediate portion of the row in question. The dashed lines in Figure 2 illustrate the evolution of the envelope E along the longitudinal direction, and it is clear that the envelope E follows a figure-eight or hourglass shape.

[0062] In this embodiment, the radial height difference H is obtained by varying the length of the pins 20 and 30. Specifically, the distal portion 26 of the first pins 20 remains unchanged from one pin 20 to the next, while the proximal portion 24 is lengthened or shortened as required. Furthermore, the distal end 38 of the second pins 30 remains unchanged from one pin 30 to the next, and the lengthening of the second pins 30 is provided at the proximal end 36.

[0063] Referring again to Figure 1, as mentioned previously, the core 14 terminates longitudinally in an end 16 bearing third pins 40. The third pins 40 can be grouped into rows like the first pins 20 and / or second pins 30; however, given the limited space at the end 16, the number of rows may be lesser. Thus, as Figure 3 shows, the usable part 18 has eight equally spaced rows of pins 20, 30, while the end 16 has only four equally spaced rows of third pins 40. Of course, these numbers can be adjusted by a person skilled in the art according to their needs.

[0064] The third pins 40 can extend in a general direction having a non-zero longitudinal component. For example, the third pins 40 can be inclined relative to the first pins and / or the second pins 30. The third pins 40 can be anchored perpendicularly to the end 16 of the web 14, which end 16 can be domed, here in the shape of a cap.

[0065] The third pins 40 may be identical, in whole or in part, to the first pins 20 and / or the second pins 30. In the illustrated example, the third pins 40 are different from the first pins 20, but may have the characteristics of the second pins 30. In other examples, the third pins 40 may be different from the first pins 20 and the second pins 30, for example in the shape of cones.

[0066] The third bristles 40 can be shorter or, as shown in Figure 2, the same length as or longer than the first bristles 20 and / or the second bristles 30 that are longitudinally adjacent to them. The fact that the third bristles 40 extend beyond the envelope E makes it easier to use them for precise makeup touch-ups.

[0067] This applicator 10 can be used with a formula having a viscosity between 150,000 cps (Centipoise) and 680,000 cps, and preferably between 350,000 cps and 600,000 cps.

[0068] Although this description refers to specific embodiments, modifications may be made to these examples without departing from the general scope of the invention. For example, although a number of features have been presented as being purely longitudinal, radial, or circumferential, it is possible, depending on the context, to deviate from these directions and add other components, including angles up to 45°.

[0069] Furthermore, although the first section of the second set of pins 30 is formed by the first edge 32 in the example described, alternatively, the first section could refer to an intermediate section of the second set of pins The second set of pins 30 is located precisely between the first edge 32 and the second edge 34. For example, instead of a triangular or trapezoidal tangential cross-section, the second pins 30 could have a parallelogram or rhombus tangential cross-section, in which the second pins taper both from the first section towards the second edge 34 and from the first section towards the first edge 32. In these embodiments, the first section can form the cross-section of the second pins 30 with maximum thickness. In the extreme case, the first edge 32 and the second edge 34 could be symmetrical to each other to allow for application independent of the applicator's direction of rotation.

[0070] Furthermore, individual features of the various embodiments illustrated or mentioned can be combined in additional embodiments. Therefore, the description and drawings should be considered illustrative rather than restrictive.

Claims

DEMANDS

1. Applicator (10) for liquid or paste product, comprising a core (14) extending along a longitudinal direction (X) and from which protrude first pins (20) and second pins (30) different from the first pins, the first pins (20) forming concavities (22) to receive the liquid or paste product and the second pins (30) having a first section and tapering circumferentially from the first section to a second section forming an edge (34), in which at least one group of first pins (20) is adjacent to at least one group of second pins (30) in the circumferential direction.

2. Applicator according to claim 1, wherein the first pins (20) and the second pins (30) are arranged in respective rows, optionally wherein the first pins (20) or second pins (30) of the same row have the same orientation.

3. Applicator according to claim 2, wherein the pitch between the first pins (20) of the same row is different from the pitch between the second pins (30) of the same row, preferably greater than the pitch between the second pins (30) of the same row.

4. Applicator according to claim 2 or 3, wherein, along one of the rows, the radial height (H) of the first pins (20) and / or the second pins (30) has a local minimum in an intermediate portion of said row.

5. Applicator according to any one of claims 1 to 4, wherein the first spikes (20) have at least one flexible part, preferably in their proximal portion (24).

6. Applicator according to any one of claims 1 to 5, in which the concavities (22) are formed by the proximal portion (24) of the first spikes (20).

7. Applicator according to any one of claims 1 to 6, in which the second pins (30) have a first edge (32) and thin out from the first edge (32) to the second edge (34), circumferentially opposite, formed by the second section.

8. Applicator according to claim 7, wherein the second pins (30) have their second edge (34) more swollen than their first edge (32).

9. Applicator according to any one of claims 1 to 8, wherein the second pins (30) taper from their proximal end (36) to their distal end (38).

10. Applicator according to any one of claims 1 to 9, in which two first pins (20A, 20B) circumferentially adjacent to each other protrude from the core in different orientations, preferably opposite.

11. Applicator according to any one of claims 1 to 10, in which the core (14) terminates longitudinally with an end (16) bearing third pins (40) extending in a general direction having a non-zero longitudinal component, and optionally in which the third pins (40) are different from the first pins (20).

Images