FR2916328A1 - Product e.g. mascara, conditioning and applying device's brush for e.g. eyelash, has connecting element with elongated portions that are spaced and separated from each other by bristles, when brush is in plane perpendicular to core axis - Google Patents

Abstract

The brush (5) has a twisted core extended along an axis, and bristles (11) maintained in twist of the core, where the bristles are radially extended around a portion of the core. A connecting element is provided on a part of the length of a covered part of the core, and applies a product or combs the eyelashes and eyebrows. The connecting element has an elongated portion (21) and another elongated portion that are circumferentially spaced and separated from each other by the bristles, when the brush is in a plane perpendicular to the axis of the core.

Description

BRUSH FOR APPLYING A PRODUCT ON LACQUERS AND / OR EYCILS

  The present invention relates to brushes for applying a product to keratinous fibers, in particular eyelashes or eyebrows, and more particularly, but not exclusively, mascara brushes.

  To apply a product on the eyelashes or eyebrows, conventional mascara brushes are known which comprise a core formed by two twisted metal strands, defining turns between which are taken the bristles of the brush. Such brushes offer many advantages in terms of makeup varieties and cost.

  Also known are molded plastic brushes, in particular elastomer, which make it possible to use different materials, in particular to make more flexible brushes.

  There are also applicators that combine the two types of brushes.

  EP 0 875 169 discloses for example an eyelash applicator having two different application areas offset along the longitudinal axis. One of the exemplary embodiments described in this patent provides a first application zone made by a cylindrical portion, obtained by molding, having an application surface provided with reliefs. The second application zone is formed at the end of the cylindrical portion 25 by a twisted core carrying bristles, this second application zone being forced into the molded cylindrical portion. These two application zones are configured to be used successively, for example by using the cylindrical portion to load the eyelashes product and then the twisted brush to separate the eyelashes. US Patent 3,921,650 discloses an applicator having an integrally molded comb with a rod connected to a grasper, and a twisted core carrying tufts of bristles mounted on the dorsal comb. The applicator has two application sides, a first side formed by a comb and a second side, opposite the first, formed by the bristles carried by the twisted core.

  US Patent 6,681,777 also describes an applicator having on one side a twisted core in which are inserted bristles, this core being mounted in a comb whose teeth extend in a direction opposite to that of the bristles.

  Patent EP 1 303 206 discloses a brush made by a twisted core in which are inserted bristles, the core being folded in two on itself, the two ends of the core being devoid of bristles and twisted on itself so as to obtain at one end a single doubly twisted core that is inserted into a rod. The two portions of the soul empoilées define between them a space in which is mounted a comb.

  Applicators having a comb on one side and bristles on the other are relatively difficult to wring. In addition, how to use them is not always obvious to the consumer.

  EP 1 665 952 discloses a mascara brush having a twisted core on which teeth are molded. The teeth are thus completely immobilized relative to the soul which does not provide great flexibility. In addition, this manufacturing method does not easily reproduce the same teeth on empoilated souls of different shapes or sizes.

  There is a need for a new applicator with more possibilities in how to arrange the application elements and in the makeup effects that can be obtained. The invention meets this need with a brush for applying a product on the eyelashes and / or the eyebrows, comprising: - a twisted core extending along an axis X, 30 - bristles, maintained in the twisting of the core, extending radially around at least a portion of the core from therefrom, and - at least one insert on at least a portion of the length of the empoiled portion of the core, the insert being configured to apply product and / or comb the eyelashes and / or the eyebrows, the insert having at least two portions which when viewed in at least one plane perpendicular to the axis of the core, are spaced apart and circumferentially separated from each other, by bristles carried by said soul.

  A hybrid brush is thus obtained, namely a brush partly formed by the bristles carried by a twisted core and partly formed by the insert which is in the radial continuity of the bristles of the brush. The brush obtained combines the advantages of a conventional twisted brush and those of a reported application element by choosing for example its material or its shape which can be very varied. For example, it is possible to make an insert element configured to provide load while the bristles carried by the twisted core provide separation. Conversely, the insert may be configured to separate the eyelashes while the bristles carried by the twisted core provide load.

  In addition, the presence of two portions circumferentially spaced apart from one another makes it possible to balance the wiping of the brush as it passes through a wiper member.

  The element being attached means that it is fixed on the core after having been produced independently of the brush, for example by molding, in a step preceding its mounting on the core. It is not molded directly on the soul. It can be tightly fixed on the soul, that is to say, mounted tightly on the soul. To be fixed on the soul, it is in particular threaded or fitted on the soul, or pinched on the soul, by a relative displacement of the reported element relative to the soul. It can then be partly crimped on the soul or on a rod in which is fixed the soul.

  By using an insert on the twisted core, the same insert can be manufactured on a large scale and mounted on several types of pile heads, for example of different shapes or sizes.

  In addition, once mounted on the soul, the insert is relatively flexible because it is not completely immobilized relative to the soul since it is mounted tightly on it.

  The insert may comprise two diametrically opposed portions opposite the core and / or two separate portions of 90.

  A portion of the insert may comprise, when the brush is observed in at least one plane perpendicular to the axis of the core, two lateral faces converging when one moves away from the core of the brush, particularly towards a tip.

  Alternatively, a portion of the insert may comprise, when the brush is observed in at least one plane perpendicular to the axis of the core, two lateral faces diverging when moving away from the core of the brush.

  A portion of the insert may comprise at least one row of teeth, the teeth may have aligned bases, be staggered or form V, when the brush is observed in at least one plane perpendicular to the axis of soul.

  At least a portion of the insert may have a free end defining a continuous surface extending along the brush, the continuous surface being planar, concave outwardly or convex outwardly.

  At least a portion of the insert may be at least partially flocked. A free end of at least a portion of the insert can overhang a free end of the bristles over at least a portion of the length of the insert. Alternatively, the free end of at least a portion of the insert may be recessed radially relative to the free end of the bristles, or be located substantially at the same radial level as a free end of the bristles.

  The bristles and / or the insert can be magnetizable.

  The bristles may be distributed over an angular extent about the X axis representing more than 180 of the circumference of the brush. Most of the brush is thus made by the bristles held by the twisted core.

  The insert may extend over the entire length of the empoilée portion of the soul, or alternatively over only a portion of its length.

  The portions of the insert may have a constant angular position when moving along the brush along the X axis, or alternatively an angular position that varies as one moves along the brush along the X axis The portions of the insert may for example define a spiral around the core as one moves along the brush.

  The free end of at least one of the portions of the insert may extend in a straight line, the straight line may be parallel to the X axis, or a curved line, when moving along of the axis X of the soul, for example sinusoidal. When the free end defines a curved line, the distance separating it from the core can vary when moving along the axis X of the soul if the soul is straight. The distance can be constant over the entire length of the soul if the soul is also curved.

  At least two of the portions of the insert of a brush may be the same, and / or at least two of the portions of the insert may be different.

  The insert can be reported in notches in the bristles.

  The portions of the insert can be connected to each other, all around the core, at 360, at least one point along the length of the insert, particularly at the distal end or at the proximal end of the insert. the insert, or between the two ends of the insert.

  The portions of the insert can be connected to each other at least one end of the empoilée part of the soul.

  The insert may be made of thermoplastic material selected from the following list: PERD, LDPE, linear PE, PP, PT, POM, PA, PET, PBT.

  The insert may also be made of an elastically deformable material, in particular in a material from the following list: elastomer, in particular thermoplastic, LDPE, PVC, PU, thermoplastic elastomer polyester, EPDM, PDM, EVA, SIS, SEBS, SBS, latex , silicone, nitrile, butyl, polyurethane, polyether amide block, polyester.

  Depending on the material used, the insert may be hard or soft.

  The core may comprise two strands of a twisted wire. The soul can be twisted left or right. The core may also be formed by winding around each other individual twisted cores of two individual brushes, the individual cores being twisted relatively to one another.

  The brush may define, over at least a portion of its length, an envelope surface of circular or polygonal cross-section, in particular in the form of a regular polygon, for example being substantially triangular or square.

  The brush can be attached to a rod connected to a gripping member.

  The rod may comprise a flexible portion that can flex during use, located between the portion of the rod for connecting the core and a portion of the rod connected to the gripping member. The bristles may be chosen from the following group: bristles of diameter less than or equal to 0.15 mm, hollow bristles, soft bristles, bristles of non-circular cross section, bristles having one or more longitudinal grooves. The invention further relates to a device for packaging and applying a product on the eyelashes and / or the eyebrows, which comprises: a brush as defined above, a container containing a product to be applied to the eyelashes and / or eyebrows.

  The conditioning device may further comprise a wiper member arranged to dewater the brush at its outlet from the container. This wiper member may be fixed in the neck of the container. The wiper member may comprise a lip made of elastomer or polyethylene, or alternatively may comprise a block of foam, for example split in the middle thereof. The wiper member may also be devoid of a porous material. The wiper member may be adjustable, in particular to allow adjustment of the size of the wiper orifice. It may also comprise a flexible lip 25 formed for example by a wave.

  The product can be used for make-up or care of eyelashes or eyebrows. It may be for example mascara.

  The product can be liquid or pasty.

  The invention will be better understood on reading the following detailed description, non-limiting examples of implementation thereof, and on examining the appended drawing, in which: FIG. a schematic view, in elevation, with partial axial section, of an example of a packaging and application device according to the invention; - Figure 1A is a view similar to Figure 1 of an alternative embodiment; - Figure 2 represents in isolation, schematically, in perspective, the brush of Figure 1; - Figure 3 shows a cross section of the brush shown in Figure 2, according to the arrow 3-3; - Figure 4 shows an axial section of the brush shown in Figure 2, according to the arrow 4-4; FIG. 5 is a perspective illustration of an insert of the brush illustrated in FIG. 2; FIGS. 6 to 9 illustrate cross-sectional views of various examples of brushes according to the invention, among others; FIG. 10 represents, in isolation, schematically, in perspective, an alternative embodiment of a brush according to the invention; - Figure 11 is an isolated perspective view of an insert of the brush illustrated in Figure 10; - Figure 12 shows a cross section of the brush shown in Figure 10, according to the arrow 12-12; FIG. 13 represents a partial axial section of the brush illustrated in FIG. 10; - Figures 14 to 16 illustrate alternative embodiments of the attachment of the brush on a rod; - Figures 17 to 27 illustrate alternative embodiments of the insert of a brush according to the invention; - Figures 28 to 44 show different embodiments of brushes according to the invention; - Figures 45 and 46 respectively show twisted cores with left and right steps; - Figure 47 schematically shows a double core formed by the winding of two twisted elementary cores; - Figures 48 to 65 show various examples of cross sections of bristles; - Figure 66 shows a side view of a corrugated hair; and - Figures 67 to 70 schematically and partially show examples of bristles.

  FIG. 1 shows a packaging and application device 1 comprising a container 2 containing a product P to be applied to the eyelashes or eyebrows, for example mascara, and an applicator 3 comprising a rod 4 provided at its end. distal 4a of a brush 5 and connected at its proximal end to a gripping member 6 also constituting the closing cap of the container 2. The latter is equipped with a wiper member 7, for example constituted by a piece of elastomer inserted into the neck 8 of the container. The wiper member 7 may be conventional or not, or even be adjustable.

  The gripping member 6 is arranged to seal the container 2 at the end of its screwing on the neck 8, in a manner known per se. In the example illustrated, the wiper member 7 defines a wiping orifice of circular cross-section, the diameter of which corresponds substantially to that of the rod 4, the latter being in the illustrated example of circular cross-section at less on all its part engaged in the container. The rod 4 has, in the example considered, a straight longitudinal axis X, which coincides substantially with the axis of the neck 8 of the container 2 when the applicator 3 is in place thereon.

  The brush 5, shown in isolation in Figures 2 to 4, comprises a core 10 formed by two twisted metal strands, this core 10 having a proximal portion 10a fixed in a housing 9 of the rod 4, as shown in Figure 4 The core 10 carries bristles 11 held by clamping between the turns of the core 10 and extending substantially radially from the core.

  The bristles of the brush are distributed so as to form an envelope surface of substantially cylindrical shape of revolution.

  Two longitudinal notches 12, diametrically opposite to the core of the brush, are formed in the bristles 11 of the brush over the entire length of the empoilated portion of the core. The hairs originally provided in this area are cut, almost flush with the soul. The notches 12 are provided to receive an insert 20 configured to apply the product and / or comb the eyelashes or eyebrows, the insert 20 being illustrated in isolation in FIG. 5.

  The insert 20 comprises two elongated portions 21 and 22 which are connected to one another at one of their ends by forming a point 23, the point 23 surrounding a distal end 10b of the core 10. opposite the tip, each elongated portion 21 and 22 has an end 21a and 22a surrounding the proximal end 10a of the core 10 with which they are fixed in the housing 9 of the rod, the assembly being for example maintained by crimping on the stem.

  Between the tip 23 and each end 21a and 22a, each elongated portion has a profile for applying product and / or combing the eyelashes. According to the example illustrated in Figures 1 to 5, each elongated portion 21 and 22 carries a row of teeth 24. Each row is formed of teeth 24 whose bases 24a are aligned and are slightly spaced from each other. They could alternatively be joined.

  It is seen in particular in Figure 3 that the teeth 24 have a main axis which extends radially from the core of the brush. According to the illustrated example, each row of teeth extends along a straight line. In addition, apart from the teeth located closest to the rod 4, all the teeth 24 of the same row have substantially the same length so that the free end 21b and 22b of each portion extends in a straight line. , parallel to the X axis.

  As seen more particularly in Figure 2, the two elongated portions 21 and 22 are interposed circumferentially between the bristles along the entire portion of the brushed brush. Indeed, when the brush is observed in a plane perpendicular to the axis of the core, the two elongate portions 21 and 22 are diametrically opposed, namely spaced 180 and circumferentially separated from one another by bristles 11. The teeth 24 form a continuity with the bristles of the brush between which they are inserted.

  According to the example illustrated in FIG. 3, the free ends 21b and 22b of the two elongated portions corresponding in this example to the free end of the teeth, project beyond the envelope surface defined by the bristles. But it is not beyond the scope of the invention if the free ends 21b and 22b are at the same level as the envelope surface defined by the bristles of the brush as shown in Figure 6. Alternatively, also consider making elongated portions 21 and 22 with free ends 21b and 22b which are set back relative to the envelope surface defined by the bristles of the brush, as seen in Figure 7.

  To avoid dirtying the rod 4 when the brush is introduced into the container 2, the brush 5 is chamfered at its end 5a located closest to the rod. The bristles 11 are shorter at this end and the last teeth 24 carried by the insert are lower than the other teeth of each row.

  Instead of being spaced 180, the two elongated portions 21 and 22 may also be distributed differently in the brush. They may for example be spaced 90 and form two perpendicular combs as illustrated in Figure 8.

  The insert 20 may also have more than two elongate portions 21 and 22 configured to apply product. For example, three elongate portions may be provided, two consecutive portions 21 and 22 being spaced 180, the third portion 21 'being spaced 90 apart from the other two, as in the example illustrated in FIG. 9.

  To achieve the brush just described, it achieves the soul empoiled in a conventional manner, that is to say, it inserts the bristles 11 between the two metal strands of the soul that is twisted to form a cylindrical brush of revolution. Bristles 11 are cut, substantially flush with the core 10, on two opposite angular portions, over the entire length of the portion empoilée so as to form the two slots 12 longitudinal. The insert 20 is otherwise integrally molded. It is mounted on the empoilated core, positioning the two elongated portions 21 and 22 in the two notches 12, the distal end 10b of the core 10 being inserted into the tip 23 of the insert, the two branches pinching then the core The proximal end 10a of the non-bristle core is surrounded by both ends 21a and 22a of the insert, the assembly being held by crimping in the housing 9 of the shaft 4.

  There is shown in Figures 10 to 13 a second embodiment of a brush according to the invention.

  This embodiment differs from that just shown by the shape of the insert 20, shown in isolation in Figure 11.

  As before, the brush 5 comprises a twisted core 10 carrying bristles 11 distributed so as to form an envelope surface of substantially cylindrical shape of revolution, and an insert element 20.

  The insert element 20 is this time in the form of a sleeve comprising two elongated portions 21 and 22 which are connected to one another at one of their end forming a point 23, and which are also connected between they at the other end of their ends, opposite the tip, by a ring 26.

  The two elongated portions 21 and 22 thus define between them openings through which the bristles 11 of the brush will come out. Each elongated portion 21 and 22 carries a row of teeth 24, the teeth forming V, when the brush is observed in at least one plane perpendicular to the axis of the core 10.30. As seen in FIG. two elongated portions 21 and 22 are circumferentially spaced from one another and separated by bristles 11 when the brush is observed in a plane perpendicular to the axis of the core 10.

  According to this example, the core is directly forced into the housing 9 of the rod 4, the end of the insert member 20 formed by the ring 26 being at a distance from the rod 4, as seen in FIG. figure 13.

  To achieve this brush, it may be provided to first fix the proximal end 10a of the core 10 in the housing 9 of the rod and then thread the insert 20 on the empoilée part of the soul. It is also possible to put the insert 20 on the empoilée part of the core and then fix the core 10 in the rod.

  FIG. 14 shows a variant of attachment of the insert element 20 on the rod 4. The insert element 20 this time comprises an end 27 in the form of a ring which surrounds the outer surface of a thinned part 4b of the outside of the rod 4. The core 10 is inserted by force into a central housing 9 provided at the end of the rod.

  The rod 4 may comprise, as illustrated in FIGS. 15 and 16, a portion 30 of increased flexibility that can flex when the brush is brought into contact with the eyelashes and / or when the applicator passes through the wiper member 7 while being removed from the container 2. The increased flexibility zone 30 is for example formed by stamping the rod and / or a thinned portion thereof and / or a portion of softer material than the rest of the rod. According to the example illustrated in FIG. 15, the flexible element 30 is forced into a housing 9 of the rod 4. The proximal end 10a of the core 10 is surrounded by the two ends 21a and 22a of each elongated portion 21 and 22 of the insert, the assembly being held by crimping in a housing 31 formed in the flexible element 30. According to the example illustrated in Figure 16, the insert 20 has a end 26 in the form of ring, only the core 10 being inserted into a housing 31 provided in the flexible element 30.

  Instead of surrounding the distal end 10b of the core 10, the tip 23 of the insert 20 can be opened, the distal end 10b of the core emerging from the insert as seen in FIG. figure 17.

  FIGS. 18 to 21 show embodiments of the insert 20.

  The insert element illustrated in Figure 18 this time comprises three elongate portions 21, 22 and 21 'which are connected at their two ends, forming a tip 23 at one end and a ring 26 at the other end. In FIG. 19, the insert element 20 comprises two elongate portions 21 and 22 which are connected together at the distal end to form a point 23 and between their two ends, substantially in the middle of the elongate portions 21 and 22, forming a ring 28.

  In all the examples that have just been described, each portion of the insert is elongated in a straight line, that is to say that the angular position of each portion 21 and 22 is constant throughout the brush. It can alternatively be provided that the angular position of each portion of the insert varies as one moves along the brush along the axis X, that is to say that the portions 21 and 22 of the element reported extend along a curved line, as one moves along the axis X of the soul. For example, there is shown in Figure 20 an insert having two portions 21 and 22 which each define a spiral around the core when moving along the brush. According to this example, two notches 12 in the form of spiral have been made on the empoilée portion of the soul to receive the two portions 21 and 22 in the form of a spiral.

  Each portion 21 and 22 of the insert may comprise a free end 21b and 22b which extends along a curved line that is not parallel to the axis X of the core. For example, there is shown a variant in FIG. 21 in which the free end 21b of an elongate portion 21 extends along a sinusoidal line. The distance between the free end 21b and the core 10 varies as one moves along the core since the core 10 is straight.

  Instead of extending over the entire empoilated portion of the soul, the élémentrapporté can be mounted on only a portion of the length of the empoilée portion of the soul, as in the example shown in Figure 22. According to in this example, the insert 20 has a ring 26 which is in a notch formed around the entire circumference of the brush. The portion of the brush located between the ring 26 and the rod 4 then comprises only bristles 11, over its entire circumference.

  Instead of having teeth 24, the elongated portions 21 and 22 may have a different profile for applying product and / or combing the eyelashes. The elongated portions 21 and 22 of the insert can for example define a continuous surface as seen in the examples shown in FIGS. 23 to 27.

  It is seen in particular in Figure 23 that each portion 21 and 22 of the insert element comprises, when observed the brush in a plane perpendicular to the axis of the core, two side faces 21c diverging when moving away of the soul of the brush. The free edge 21b connecting the two faces 21c can form a convex surface towards the outside. The free end 21b can also be covered with a flocking coating over its entire length. According to this example, the portion 22 is identical to the portion 21.

  Instead of being outwardly convex, the free end 21b may be defined by an outwardly concave surface as illustrated in FIG. 24.

  It can also be provided that instead of diverging, the two side faces 21c of an elongate portion of the insert converge when moving away from the core of the brush to a point. For example, FIG. 25 shows a brush comprising an elongated portion 22 which, when the brush is observed in a plane perpendicular to the axis of the core, has two lateral faces 22c which converge when one s' away from the core of the brush to a point so that the free end 22b forms a straight edge. According to this example, the two portions 21 and 22 are different. The first elongated portion 21 comprises, when observed the brush in a plane perpendicular to the axis of the core, two side faces 21c diverging when moving away from the core of the brush.

  Alternatively, the free ends 21b and 22b of the elongate portions of the insert may define a continuous surface and extend, on either side, by curved teeth 21d and 22d, which follow, for example, the curvature of the envelope surface. defined by the bristles 11, as seen in Figures 26 and 27. According to this example, the free end of a portion of the bristles 11 may overflow the insert on one side of the brush and the free end another part of the bristles may be on the other hand be at the same level as the free ends 21b and 22b portions 21 and 22 of the insert.

  In the examples which have just been described, the envelope surface has a circular section. It is of course conceivable that the bristles of the brush define an envelope surface which has in cross section at least one point of its length another shape, as illustrated in FIGS. 28 to 37, for example triangular as illustrated in FIG. 28.

  In the brush illustrated in FIG. 28, provision can be made for the insert to comprise two elongate portions 21 and 22 extending 180 from each other, the free end 21b of one of the portions being located in the middle of a face of the triangle and overflowing the bristles, the free end 22b being located at one of the vertices of the triangle.

  The brush can be given various other cross-sections, for example square as illustrated in FIG. 29, pentagonal or hexagonal, as represented respectively in FIGS. 30 and 31. It is then possible to provide that the free ends of the elongated portions are located at the level of FIG. one of the vertices of the polygon, as is the case in FIGS. 29 to 31. In particular, the brush illustrated in FIG. 29 comprises four elongated portions 21, 22, 21 'and 22' whose respective free ends 21b , 22b, 21'b, 22'b are located at the vertices of the square. But one could of course also provide that the free ends of the elongated portions are located in the faces of these polygons.

  The brush 5 may comprise at least one plane or concave face. The brush may, for example, comprise a circular cross-sectional envelope surface with at least one flat part 40, as illustrated in FIG. 32, where it can be seen that the free end 21b projects beyond the flat face 40 of the envelope surface defined by the bristles. . The brush may also have a circular cross-section with at least one concave side 41 as shown in FIG. 33, or with at least one convex side 41, as illustrated in FIG. 35. In this latter figure, it can be seen that the brush can have an envelope surface of oblong, in particular lenticular transverse section, the two elongated portions 21 and 22 extending in the smallest diameter of the oblong section.

  In the cross-sectional examples illustrated in Figures 28-34, the cross-section is shown centered with respect to the core. Alternatively, the core may also be eccentric with respect to the cross section of the envelope surface at at least one point of the brush, as shown in FIGS. 35 to 37. In FIG. 35, the cross section is square in shape, rectangular in FIG. 36 and oblong in FIG. 37. Whatever its shape, the cross section may be centered or eccentric with respect to the core.

  The envelope surface E may be of constant circular cross section over most of the length of the brush, or over its entire length.

  Alternatively, the envelope surface may have at least one portion whose cross section varies, for example homothetically, for example decreasing in the direction of the free end of the brush.

  In another variant, the cross section E of the envelope surface of the brush may pass through at least one extremum between its two axial ends, for example a maximum or a minimum, or both, as can be seen in FIG. In this figure, the cross section passes through a minimum 40 and two maxima 41, 42.

  When the cross section varies, it can be provided that the free end of an elongate portion is located at a distance from the core which varies so as to follow the envelope surface defined by the bristles. For example, FIG. 38 shows an elongated portion 22 having teeth 24 of different heights when moving along the core of the brush so as to follow the shape of the envelope surface E formed by the bristles.

  In another variant, the envelope surface E of the brush is unsymmetrical with respect to a median plane perpendicular to the core, for example as illustrated in FIG. 39. In this example, the brush is made from a blank on which facets 50 have been cut. It is then possible for the free ends 21b and 22b of the elongated portions 21 and 22 to protrude beyond the envelope surface defined by the bristles in these facets 50.

  The longitudinal axis X of the core 10 of the brush 5 may coincide with the longitudinal axis Z of the rod 4, or alternatively be distinct. By way of example, FIG. 40 illustrates an exemplary embodiment in which the core of the brush extends along an axis X forming an angle b with the axis Z. The angle can for example be understood between 1 and 15. According to this example, the elongated portions 21 and 22 also form with their respective ends 21a and 22a an angle 6.

  The brush may also be made from a blank in which notches 55 have been cut, as is the case in the variant illustrated in FIG. 41. The notches have an outward convex shape in cross-section, but it is not beyond the scope of the present invention when the notches have in cross section a concave shape to the outside.

  In the embodiments which have just been described, the core 10 of the brush 5 is rectilinear, but it is not beyond the scope of the present invention if it is otherwise.

  By way of example, FIGS. 42 to 44 show three exemplary embodiments in which the core 10 of the brush is curved.

  In the example illustrated in Figure 42, the brush has a core 10 curved over at least a portion of its length and an envelope surface E not symmetrical with respect to a median plane perpendicular to the core. The free end of the brush is not aligned with the axis Z. The insert element 20 can then comprise two portions 21 and 22, only one of which is illustrated in dashed lines, which extend along the same curvature as the web of the brush.

  In the example illustrated in Figure 43, the brush has a flat face 50 and a convex face. The two portions 21 and 22 of the insert follow the curvature of the core and each carry a row of teeth 24. The free end 21b of the portion 21 opens into the flat face 50 while the free end 22b of the portion 22 opens into the convex face. The teeth 24 of the portion 22 are all the same length so that the free end 22b defines a line of the same curvature as the curvature of the convex surface defined by the bristles. On the other hand, the teeth 24 of the portion 21 do not all have the same length according to their position on the portion 21 along the core so that the free end 21b follows a straight line, parallel to the face plane 50 in which it opens. The elongate portions 21 and 22 of the insert 20 are therefore different in this example.

  In the example of Figure 44, the brush has two planar faces 50. The two flat faces 50 do not extend over the entire length of the empoilée portion of the brush. The added element 20 does not extend over the entire length of the empoilated portion but only on the portion facing the flat faces so that the ends 21b and 22b open into the flat faces 50.

  When the core is curved, the brush may initially be made with a straight core and be bent once it is empoilée, either before fixing the insert or after having fixed it so that it is also curved.

  In all the examples which have just been described, the insert 20 may be made of thermoplastic material chosen from the following list: PERD, LDPE, linear PE, PP, PT, POM, PA, PET, PBT. The insert may also be made of an elastically deformable material, in particular in a material from the following list: elastomer, in particular thermoplastic, LDPE, PVC, PU, thermoplastic elastomer polyester, EPDM, PDM, EVA, SIS, SEBS, SBS, latex , silicone, nitrile, butyl, polyurethane, polyether amide block, polyester.

  The insert 20 may further be at least partly flocked. The flocking coating may comprise all identical fibers or different fiber mixtures. The insert 20 can also be magnetized.

  In the examples just described, the core consists of a twisted wire in which the bristles are held. The strands of the soul can be twisted left or right. It is particularly advantageous to use a left-handed brush. In FIG. 45, there is shown a brush with a twisted core on the left and in FIG. 46 a twisted core on the right. The path of the plies N defined by the ends of the bristles has been schematized by dotted lines, these plies forming an angle R with a plane perpendicular to the core. We can usefully refer to the European patent EP 611 170.

  The soul can still be a double soul, formed by two elementary souls twisted together, as shown in Figure 47. Each elementary soul may comprise two strands twisted together and enclosing hairs. The two elementary cores may each be constituted by a branch of a single twisted core folded U-shaped, the two branches being twisted together.

  It is possible to use in a brush made according to the invention all kinds of bristles, and in particular bristles having a circular or other circular cross section. In particular, it is possible to use a mixture of bristles of different natures or a mixture of bristles of different lengths, of the same nature or not.

  The brushes illustrated are for example made with bristles of circular section with a diameter of between 6.5 hundredths of a millimeter and 40 hundredths of a millimeter.

  It is possible to use bristles having in cross section one of the shapes shown in FIGS. 48 to 65 schematically, for example a circular shape with a flat as illustrated in FIG. 48, flattened as illustrated in FIG. 49, starred by cross-shaped example as shown in Figure 50 or three branches as shown in Figure 51, U-shaped as shown in Figure 52, H as shown in Figure 53, T as shown in Figure 54 , V as shown in Figure 55, a recessed shape, for example circular as shown in Figure 56 or square as shown in Figure 57, forming branches, for example flake-shaped as shown in Figure 58, prismatic section, for example triangular as shown in Figure 59, square as shown in Figure 60 or hexagonal as shown in Figure 61, or an oblong shape, including lens as shown in FIG. 62, or hourglass-shaped as shown in FIG. 63. It is possible to use bristles having articulated parts relative to each other, as represented in FIG. 64. It is also possible to use bristles presenting at least one capillary groove 60, as shown in Figure 65.

  The bristles 11 which are retained between the twisted strands of the core may have, before placement between the strands of the core, a rectilinear shape or not, for example a corrugated shape as shown in FIG. 66.

  The bristles may be treated to form balls 61 at their ends as shown in FIG. 67, or forks 62 as illustrated in FIG. 68.

  It is possible to use flocked bristles as illustrated in FIG. 69, or else bristles made by extrusion of a plastic material comprising a charge of particles 64, for example particles of a moisture-absorbing material, in order to confer a microparticle. relief on the surface of the bristles, as shown in Figure 70, or give them magnetic or other properties.

  The bristles can still be made with a material having properties promoting sliding.

  The bristles can be natural or synthetic and for example be made of a material chosen from: PE, PA, in particular PA6, PA6 / 6, PA6 / 10 or PA6 / 12, HYTREL, PEBAX, silicone, PU, this list does not include being not limiting.

  Of course, the invention is not limited to the embodiments which have just been described. The application of the product may for example be carried out by means of a vibrating applicator.

  The applicator comprises, for example, as illustrated in FIG. 1A, a vibration generator 70 (also called vibrating source) which is, for example, integral with the gripping member 6, which can be fixed thereto removably or not . Such a vibration generator is described in the French patent application FR 2 882 506. The vibrations can oscillate the brush perpendicularly to the core or parallel to the core. The vibrations 30 may allow for better lash separation and in the case of using a composition comprising fibers, a better orientation thereof and / or ease of sampling. During sampling, the applicator element may be subjected to vibrations from the vibrating source, which may make it possible to obtain, if necessary, a more homogeneous product load on the applicator element.

  When the container has a wiper member through which the applicator member is removed, the applicator member may or may not be subject to vibration as it passes through the wiper member, thereby may allow to obtain a spin of the application element different from that which exists in the absence of vibration of the application element. The user can thus for example choose between at least two degrees of dewatering of the applicator element, depending on whether the applicator element vibrates or not at the time of the crossing of the wiper member.

  The product may also be applied by means of a device for assisting the application of the product, this device comprising means for removable attachment to at least one finger, a hand or a wrist, or being held in the hand, and a vibrating source for producing variations.

  The invention further relates, in another aspect, a vibrating source and an applicator as defined above. The expression containing one must be understood as being synonymous with at least one, unless the opposite is specified.

  In the foregoing detailed description, reference has been made to preferred embodiments of the invention. It is obvious that variants can be made without departing from the invention as claimed hereinafter.

Claims (48)

  1. Brush (5) for the application of a product on the eyelashes and / or the eyebrows, comprising: - a twisted core (10) extending along an axis X, - bristles (11), maintained in the twist of the core, extending radially around at least a portion of the core from it, and - at least one insert (20) over at least a portion of the length of the empoilated portion of the core, the insert (20) configured to apply product and / or comb the eyelashes and / or eyebrows, the insert having at least two portions (21) and (22) which, when viewed in at least one plane perpendicular to the axis of the web, are circumferentially spaced and spaced from each other by bristles (11) carried by said web (10) .   2. Brush according to claim 1, wherein the insert element (20) comprises two portions (21) and (22) separated diametrically opposite with respect to the core.   3. Brush according to any one of the preceding claims, wherein the insert (20) comprises two portions (21) and (22) separated by 90. 25   4. Brush according to any one of the preceding claims, wherein a portion (21) of the insert comprises, when the brush is observed in at least one plane perpendicular to the axis of the core, two faces. lateral (22c) converging when one moves away from the soul of the brush, in particular towards a point. 30   5. Brush according to any one of claims 1 to 3, wherein a portion of the insert comprises, when the brush is observed in at least one plane perpendicular to the axis of the core, two side faces. (21c) diverging when one moves away from the soul of the brush. 24 20   6. Brush according to any one of the preceding claims, wherein a portion of the insert comprises at least one row of teeth (24).   7. Brush according to the preceding claim, wherein the teeth (24) have bases (24a) aligned.   8. Brush according to any one of claims 1 to 6, wherein the teeth (24) are staggered.   9. Br Brush according to claim 8, wherein the teeth (24) form V, when the brush is observed in at least one plane perpendicular to the axis of the core.   10. Brush according to any preceding claim, wherein at least a portion (21) of the insert element has a free end (21b) defining a continuous surface extending along the brush.   11. Brush according to claim 10, wherein the continuous surface is flat.   12. The brush of claim 10 wherein the continuous surface is concave outwardly.   13. Brush according to claim 10, wherein the continuous surface is convex outwardly. 30   Brush according to any of the claims, wherein at least a portion of the insert (20) is at least partly flocked.   Brush according to any one of the preceding claims, wherein a free end (21b) of at least a portion of the insert member 20 projects a free end of the bristles (11) over at least a portion of the length. of the reported element.   16. ù Brush according to any one of claims 1 to 14, wherein the free end (21 b) of at least a portion of the insert is recessed radially relative to the free end of the bristles ( 11).   17. Brush according to any one of claims 1 to 14, wherein the free end (21b) of at least a portion of the insert is located substantially at the same radial level as a free end of the bristles ( 11).   18. Brush according to any one of the preceding claims, wherein the bristles (11) and / or the insert are magnetizable.   19. Brush according to any one of the preceding claims, wherein the bristles (11) are distributed over an angular extent around the X axis representing more than 180 of the circumference of the brush.   20. Brush according to any one of the preceding claims, wherein the insert (20) extends over the entire length of the empoilée portion of the core (10).   21. Brush according to any one of the preceding claims, wherein the portions (21) and (22) of the insert element have a constant angular position when moving along the brush along the axis X.   22. Brush according to any one of claims 1 to 20, wherein the portions (21) and (22) of the insert have an angular position which varies as one moves along the brush along the axis. X.   23. Brush according to the preceding claim, wherein the portions of the insert element define a spiral around the soul when one moves along the brush.   24. Brush according to any one of the preceding claims, wherein the free end (21b) of at least one of the portions of the insert extends in a straight line, when moving along the X axis of the soul.   25. Brush according to the preceding claim, wherein the straight line is parallel to the X axis.   26. A brush according to any one of claims 1 to 23, wherein the free end (21b) of at least one of the portions of the insert extends along a curved line when moving. along the X axis of the soul.   27. Brush according to the preceding claim, in which the free end (21b) of at least one of the portions of the insert extends along a sinusoidal line, as one moves along the line. X axis of the soul.   28. Brush according to any one of the preceding claims, wherein at least two of the portions (21) and (22) of the insert are identical.   29. Brush according to any one of claims 1 to 27, wherein at least two of the portions (21) and (22) of the insert are different.   30. Brush according to any one of the preceding claims, wherein the insert (20) is attached in notches (12) in the bristles.   31. Brush according to any one of the preceding claims, wherein the portions (21) and (22) of the insert are connected together around the web at at least one point (23; 26; 28) of the length of the insert.   32. Brush according to the preceding claim wherein the portions are connected together at the distal end of the insert. 20   33. Brush according to any one of the preceding claims, wherein the portions are connected together at the proximal end of the insert.   34. Brush according to any one of the preceding claims, wherein the portions are interconnected between the two ends of the insert. 10   35. Brush according to any one of the preceding claims, wherein the portions of the insert are connected to each other at least one end of the empoilée part of the soul.   36. A brush according to any one of the preceding claims, wherein the insert (20) is made of thermoplastic material selected from the following list: PERD, LDPE, linear PE, PP, PT, POM, PA, PET , PBT.   37. Brush according to the preceding claim, wherein the insert (20) is made of elastically deformable material, in particular in a material of the following list: elastomer, especially thermoplastic, LDPE, PVC, PU, polyester thermoplastic elastomer, EPDM, PDM, EVA, SIS, SEBS, SBS, latex, silicone, nitrile, butyl, polyurethane, polyether amide block, polyester. 25   38. Brush according to any preceding claim, wherein the core (10) having two strands of a twisted wire.   39. ù Brush according to any one of the preceding claims, wherein the core (10) is twisted on the left.   40. Brush according to any one of claims 1 to 38, wherein the core is twisted (10) right. 30   41. Brush according to any one of the preceding claims, characterized in that the core (10) is formed by the winding around each other of the individual twisted cores of two individual brushes, the individual souls. being twisted relatively to each other.   42. Brush according to any one of the preceding claims, defining, over at least a portion of its length, an envelope surface of circular cross section. 10   43. Brush according to any one of claims 1 to 41, defining, over at least a portion of its length, an envelope surface of polygonal cross section, in particular in the form of a regular polygon.   44. Brush according to the preceding claim, defining, over at least a portion of its length, an envelope surface of substantially triangular or square cross-section.   45. Brush according to any one of the preceding claims, being attached to a rod (4) connected to a gripping member (6).   46. Brush according to the preceding claim, wherein the rod comprises a flexible portion (30) that can flex in use, located between the portion of the rod for connecting the core and a portion of the rod connected to the grasping organ.   47. Brush according to any preceding claim, wherein the bristles (11) selected from the following group: bristles of diameter less than or equal to 0.15 mm, hollow bristles, soft bristles, bristles of non-circular cross section. bristles having one or more longitudinal grooves.   48. Device for packaging and applying (1) a product to the eyelashes and / or the eyebrows, which comprises: a brush (5) as defined in any one of the preceding claims, a container (2) containing a product (P) to be applied to the eyelashes and / or the eyebrows.