FR2871666A1 - MASCARA BRUSH - Google Patents

Abstract

The mascara brush (1) comprises a core (2) formed of a helical twist (21) and a plurality of bristles secured to said core (2) over a portion (26) extending over an axial length L of said helical twist (21) and comprising a succession of n turns (20), said plurality of bristles comprising a first plurality (3) of so-called radial bristles (30), said core (2) having an upper portion (28) intended to be secured to a rod (5) of a mascara applicator.The brush is characterized in that said plurality of bristles comprises, in addition to said first plurality (3) of so-called radial bristles (30), at least a second plurality (4) so-called axial bristles (41) because they extend parallel to said axial direction (10). Advantages: the presence of axial bristles in the brush makes it possible in particular to widen the possibilities of formulating mascaras.

Description

MASCARA BRUSH

  FIELD OF THE INVENTION The invention relates to the field of applicators of cosmetic products, typically mascara applicators, provided with a brush.

STATE OF THE ART

  A large number of mascara applicators are already known.

  These applicators, intended to cooperate with a reservoir container for the mascara, typically comprise: a) a cap for closing said container and serving as a means for gripping said applicator, b) an axial rod, c) and a brush, said rod being secured to said cap at one of its ends, and said brush at the other end, said brush comprising a metal twist solidarisant a plurality of bristles.

  With regard to said brush, a large number of brushes are already known.

  Thus, the brushes described in French patents FR 2 505 633, FR 2 605 505, FR 2 607 372, FR 2 607 373, FR 2 627 068, FR 2 627 363, FR 2 637 471 and FR 2 637 472 are known. , FR 2 650 162, FR 2 663 826, FR 2 668 905, FR 2 675 355, FR 2 685 859, FR 2 690 318, FR 2 701 198, FR 2 706 749, FR 2 715 038, FR 2 745 481; , FR 2 748 913, FR 2 749 489, FR 2 749 490, FR 2 753 614, FR 2 755 693, FR 2 774 269, FR 2 796 531, FR 2 796 532, FR 2 800 586.

  The brushes described in US Pat. No. 4,733,425, US Pat. No. 4,861,179, US Pat. No. 5,357,987, US Pat. No. 5,595,198, US Pat. No. 6,241,411, US Pat. No. 6,427,700 are also known.

PROBLEMS POSED

  On the one hand, faced with the constant evolution of mascara formulas, there is the need to develop new brushes to allow the application of these formulas, and typically adapted to each new formula.

  On the other hand, there is also for the user users the need to have a wide range of brushes to obtain different effects, for example different levels of load of the product brush to be applied and / or different combing effects of the brushes. lashes.

  Finally, in the field of cosmetics, there is a permanent demand for new products, in particular to customize products, whether formulas, applicators or packaging in general, to the point that the renewal of products becomes an absolute commercial necessity, on pain of disappearing from the market.

DESCRIPTION OF THE INVENTION

  According to the invention, the mascara brush comprises a core, having an axial direction, formed of a helical twist formed by two strands twisted with a wire folded on itself, and a plurality of bristles secured to said core between said strands twisted on a portion extending over an axial length L of said helical twist and comprising a succession of n turns, said plurality of bristles comprising a first plurality of so-called radial hairs extending radially with respect to said core, said core , of a length Lo> L, having a lower end typically formed by a hairpin ply of said wire and an upper portion, typically of length Lo-L, intended to be secured to a rod of a mascara applicator , and is characterized in that said plurality of bristles comprises, in addition to said first plurality of so-called radial hairs, at least a second plurality of po they said axial since extending parallel to said axial direction.

  This characteristic element of the brushes according to the invention can be introduced or applied in most known brushes. Whatever the type of said first plurality of bristles, it follows that, during makeup, the eyelashes are no longer combed along an axis consisting of two parallel fibers or bristles, but according to two fibers or parallel hairs and a fiber or hair perpendicular to the two previous ones. This results in an increased volume effect, which is particularly advantageous.

DESCRIPTION OF THE FIGURES

  Figures lb, 2a and 2b relate to the prior art, the other figures being relative to the invention.

  Figures 1a and 1b illustrate an initial step in the method of manufacturing brushes (1), respectively according to the invention and according to the prior art. They are perspective views showing a metal pin (29) formed by folding on itself a portion of wire so as to have two metal strands (290) of said pin (29), typically parallel, with a sheet of fibers (8) introduced into said pin (29).

  In FIG. 1a, said ply (8) comprises a first ply (80) of so-called short fibers (800) intended to form said first plurality (3) of radial bristles, and a second ply (81) of so-called long fibers ( 810) for forming said second plurality (4) of axial bristles (41).

  In FIG. 1b, said ply (8) comprises only a first ply (80) of so-called short fibers (800) intended to form a plurality (3) of radial bristles (30), according to the traditional method of manufacturing.

  Figures 2a and 2b, relating to the prior art, are partial perspective views. Figure 2a shows the brush blank (1 ') obtained after twisting the metal pin of Figure 1b. It comprises a core (2) and a plurality (3 ') of axial bristles (30') before putting the axial bristles to length.

  FIG. 2b shows the brush (la) obtained after putting the blank (la ') of FIG. 2a to the final dimensions by cutting or shaping and putting the axial bristles (30') to length so as to form a plurality (3) of axial bristles (30).

  Figures 3a and 3b relating to the invention are to be compared with Figures 2a and 2b.

  FIG. 3a shows the brush blank (1 ') obtained after twisting the metal pin of FIG. 1a, the blank (1') being shown in rotation, the long fibers (810) forming a crown (44) ) perpendicular to said axial direction (10), while the short fibers form a plurality (3 ') of axial bristles (30') before being set to length.

  FIG. 3b shows the blank (1 ") obtained after having put said first plurality (3) of short fibers (800) to the required dimensions so as to have a plurality (3) of axial bristles (30) of desired length, with a cutting tool, the blank (1 ") being shown in rotation, the long fibers (810) forming a ring (44) perpendicular to said axial direction (10), as in Figure 3a.

  Figures 4a to 4c illustrate the method of manufacturing the brush (1) according to the invention. This brush (1) corresponds to the pattern of webs of Figure la, and the brush (1) of Figure 6a.

  FIG. 4a is a diagrammatic sectional view of a device (7) comprising a means of rotation (70) of the blank (1 ") of FIG. 3b, with its rotation at the speed SZ and its introduction into a tube (71), of diameter 2.R, rotating at the speed S2 ', typically equal to S2, In FIG. 4a, said blank (1 ") has been introduced at approximately 50% of its length L into said tube (71). ). Curved arrows represent the rotating means, typically a lathe (70), of said blank (1 ") and said tube (71).

  FIG. 4b is a perspective view of the blank (11 ") obtained after said long fibers have been folded into said short fibers, at the end of the step illustrated in FIG. 4a, in order to form the second plurality (43) Axial bristles (41) Figure 4c is a perspective view similar to Figure 4b after application of a ligation (60) on the upper end (42) of the axial beam (40) forming the second plurality (43) of axial bristles (41).

  FIG. 5 is a greatly enlarged partial view of a brush portion (1) illustrating an intercrossing of radial bristles (30) and an axial bristle (41), typically at right angles, said axial bristles (41) being parallel at said axial direction (10) and at said core (2).

  FIGS. 6a to 6f are diagrammatic views, in axial section, of brush blanks (1m) according to the invention, intended to represent different configurations of long fibers and short fibers, said long fibers (810) forming an axial beam (40) axial bristles (41). These brush blanks (1 ') correspond to an intermediate state in which the upper ends (42) or lower (43) of the axial beam (40) are devoid of connecting means (6).

  The core (2) has been shown with the same orientation as that of FIGS. 1 a to 4b, with the lower end (22) of the twist (21) of the core (2) on the right, and on the left the end of the twisted metal strands (210) comprising said upper portion (28) intended to be secured to an applicator rod (5). Said lower end (22) has been shown more elongated than in reality; said first plurality (3) of radial and short bristles (30) has been schematically represented by a plurality of vertical lines, while said second plurality (4) of axial and long bristles (41) has been represented by four horizontal lines, two portions of long fibers (810) forming four axial bristles (41).

  In FIGS. 6a, 6c and 6d, said long fibers (810) have been folded to the left, whereas it is the opposite in FIGS. 6b, 6e and 6f where said long fibers (810) have been folded towards the right, that is to say towards the lower end (22) of the core (2).

  In FIG. 6a, said second plurality (4) of long fibers (810) has been secured to a said second axial zone (25) of the core (2) towards the lower end (22) of the core, said first plurality (3) of short fibers (800) being secured to a said first axial zone (24) of the core (2).

  In FIG. 6b, said second plurality (4) of long fibers (810) has been secured to said second axial zone (25) of the core (2) towards the upper portion (28) of the core (2). .

  In FIG. 6c, similar to FIG. 6a, said second axial zone (25) of the core comprises two parts, a so-called high part (250) situated in a median part of the core, and a so-called low part (251). ) located towards the lower end (22) of the core (2). Similarly, said first axial zone (24) comprises two parts: a so-called upper part (240) and a lower part (241).

  In FIG. 6d, said second axial zone (25) of the core (2) corresponds to a median portion (27) of the core (2), said first axial zone (24) comprising, on either side of said middle part, two parts: said upper part (240) and said lower part (241).

  Figure 6e is similar to Figure 6d, but with said plurality of long fibers (810) facing right towards said lower end (22), instead of being left-handed in Figure 6d.

  In FIG. 6f, similar to FIGS. 6b and 6d, said second axial zone (25) of the core (2) comprises two parts: said upper part (250) located at the upper end of the portion of the bearing core said plurality of short fibers or radial bristles (30), and said lower portion (251) located in a middle portion of the core. Similarly, said first axial zone (24) comprises two parts: said upper part (240) interposed between the upper (250) and lower (251) parts, and said lower part (241), all these parts (240, 241, 250, 251) being juxtaposed.

  FIGS. 7a to 7f schematize, in axial section, various means of connection (6) of the end (42, 43) of the bundle (40, 41) of long fibers (810), said end being a high end (42) in the case of Figures 7a to 7c, and a low end (43) in the case of Figures 7d to 7f.

  In Figure 7a, the connecting means (6) is constituted by overmoulding (61) of the rod 30 of the applicator.

  In Figures 7b, 7d and 7f, the connecting means (6) is constituted by a ligature (60).

  In Figures 7c and 7e, the connecting means (6) is constituted by a fixing ring (62).

  In FIG. 7f, the length of the long fibers (810) of said second plurality (4) forming a bundle (40, 41) of long fibers is increased, so as to form a miniature brush (45) at the lower end of the brush (1).

  DETAILED DESCRIPTION OF THE INVENTION

  According to the invention, and as illustrated in FIGS. 4b, 4c, 5 and 6a to 7f, said second plurality (4) of bristles can penetrate all or part of said first plurality (3) of bristles, so as to have an intercross of radial bristles (30) and axial bristles (41), typically at right angles.

  By their intercrossing with radial bristles (30), the axial bristles (41) considerably modify both the collection of mascara and its application on the eyelashes, the eyelashes spreading the radial hairs (30) and coming to bear against the axial hairs (41) when applying mascara with the brush according to the invention.

  As illustrated in FIGS. 6a and 6b, said first plurality (3) of radial bristles can be secured to said core (2) over an axial length L '<L of said twist (21), and said second plurality (4) of Axial bristles may be secured to said core (2) over an axial length L "<L. Said axial lengths L 'and L" may be such that L' + L "= L, said first plurality (3) of radial bristles ( 30) and said second plurality (4) of axial bristles (41) being secured respectively to a first and a second axial zones (24, 25) of the core (2), said first axial zone (24) and second zone axial (25) being distinct and typically contiguous, see Figure 6a.

  As illustrated in FIG. 6a, said second axial zone (25) can extend to a height H1, and said first axial zone (24) can extend from said height H1, typically equal to L ", up to said height H2> H1, typically equal to L, said heights H1 and H2 being ordinates or axial distances counted from said lower end (22) taken as origin, said second axial zone (25) typically adjoining said end lower (22) of said core (2).

  As illustrated in FIG. 6b, said first axial zone (24) can extend to a height H '1, typically equal to L', and said second axial zone (25) can extend from said height H '1 up to a height H'2> H' 1, typically equal to L, said heights H'l and H'2 being ordinates or axial distances counted from said lower end (22) taken as origin, said first axial zone (24) typically adjoining said lower end (22) of said core (2).

  As illustrated in FIG. 6d, said second axial zone (25) can be between two parts (240, 241) of said first axial zone (24), between a so-called upper part (240) of length Ls and a so-called lower part (241) of length LI, with L '= Ls + L1. Said first axial zone (24) can thus comprise two parts, a so-called upper part (240) of length Ls and a so-called lower part (241) of length LI, with L '= Ls + L1, as illustrated in FIGS. 6f As illustrated in FIGS. 6c and 6f, said second axial zone (25) may comprise at least two pluralities of axial bristles (41), forming two distinct parts (250, 251), a so-called high portion (250) of length LH and a so-called low part (251) of length LB such that L "= LH + LB.

  According to a brush modality according to the invention, and as illustrated in FIGS. 6a, 6c and 6d: a) all or part of said first axial zone (24) can abut said upper portion (28), b) said second plurality ( 4) of axial bristles (41) can be oriented towards said upper portion (28), said second plurality (4) of axial bristles (41) having an axial length sufficient to axially traverse said first axial zone (24) and for second plurality (4) of axial bristles form an axial beam (40) having a so-called upper end (42) reaching said upper portion, c) a connecting means (6) can secure said upper end (42) of said axial beam (40) typically to said upper portion (28), so that said second plurality (4) of axial bristles (41) can not deviate from said core (2) especially when using said brush (1).

  According to another embodiment of the brush according to the invention, and as illustrated in FIGS. 6b, 6e and 6f: a) all or part of said first axial zone (24) can abut said lower end (28), b) said second plurality (4) axial bristles (41) can be oriented towards said lower end (28), said second plurality (4) of axial bristles (41) having an axial length sufficient to axially traverse said first axial zone (24) and for second plurality (4) of axial bristles (41) form an axial beam (40) having a so-called low end (43) at said lower end (22) or below said lower end (22); link (6) can secure said lower end (43) of said axial beam (40) typically at said lower end (22) or below said lower end (22), so that said second plurality (4) ) of axial bristles (41) n e may deviate from said lower end (22) or said axial direction (10) in particular when using said brush (1).

  As illustrated in FIGS. 4c, and 7a to 7f, said connecting means (6) may comprise a glue, ligation (60) or ring or fastener ring (62) surrounding and binding said beam (40) to its end (42, 43).

  Said connecting means may comprise a weld of said end (42, 43) or a self-bonding of said end (42, 43). Indeed, said end (42, 43) can form a crown of axial bristles (41), the ends of the bristles (41) being made integral and welded to each other by localized heating, so as to form said connecting means .

  As illustrated in FIGS. 4c and 7a to 7c, said connecting means (6) can ensure a fixation of said upper end (42) of said axial beam (40) to said upper portion (28) or to said rod (5).

  But, as illustrated in FIGS. 7d to 7f, said connecting means (6) can ensure a fixation of said lower end (43) of said axial beam (40) on a lower portion (28 ') of said core (2) devoid of of hair.

  As illustrated in FIG. 7f, with long fibers (810) of sufficient length, it is then possible to form a small brush (45) at the lower end of said brush (1).

  According to the invention, the total number of turns n of the portion (26) of the core (2) carrying said plurality of bristles (3, 4) can range from 10 to 24, the number of turns n 'corresponding to said first plurality of bristles (3) and the number of turns n "corresponding to said second plurality of bristles (4) being such that n = n '+ n" and that n' / n "= L '/ L".

  According to the invention, the ratio L '/ L "can range from 0.5 to 30, and preferably from 5 to 20, and L can range from 3 mm to 50 mm.

  Said first plurality of bristles (3) may be formed of radial bristles (30), typically made of polymeric plastic, with a number N 'per turn ranging from 5 to 80, with a radial length ranging from 2 mm to 20 mm, and of diameter typically ranging from 0.05 mm (2 mils) to 0.375 mm (15 mils), said plurality of bristles being formed of bristles identical or different in diameter, section, chemical nature, or mechanical characteristics.

  Said second plurality of bristles (4) may be formed of axial bristles (41), in number N "ranging from 4 to 100, axial length 1" ranging from 5 mm to 60 mm, and diameter ranging from 0.05 mm. at 0.375 mm.

  According to one embodiment of the invention, said second plurality of bristles (4) may comprise or be replaced by metal wires.

  In this case, said metal son, taken one by one or by a group of several son, can carry a plurality of beads of diameter typically less than 1 mm.

  Said second plurality of bristles (4) may form a right axial beam (40) or a helical beam.

  Indeed, as will be seen next about the manufacturing process, the method used is the same to obtain a right axial beam (40) or a helical beam, so that there is no particular difficulty to obtain one or other of these methods.

  Another object of the invention is constituted by the method of manufacturing a mascara brush (1) according to the invention.

  In this process: a) a metal pin (29) is formed by folding over a portion of metal wire so as to have two metal strands (290) of said pin, typically parallel, b) a fiber web is prepared (8), c) introducing said web (8) between the strands (290) of said pin, along an axial length L, so that, typically, said pin (29) forms a mediator of said fiber web (8), d) said pin (29) is then twisted so as to form a brush blank (1 ') comprising said core (2) forming said helical twist (21) solidarisant said fiber web (8) by n turns on said length L, and a plurality (3 ') of radial bristles (30') e) all or part of said plurality (3 ') of radial bristles (30'), after rotation of said brush blank ( 1 ') in said axial direction (10) is cut, generally with the aid of a cutting tool, so as to e to the desired radial length all or part of said fibers and thus obtain said brush comprising a plurality (3) of radial bristles (30).

  This method is characterized in that: 1) in said step b), said sheet of fibers (8) comprises at least a first ply (80) of so-called short fibers (800), intended to form said first plurality of bristles (3); ), and a second ply (81) of so-called long fibers (810) for forming said second plurality of bristles (4), 2) said method may comprise a complementary step of orienting said plurality of long fibers (810) said second ply (81) in said axial direction (10), so as to form said axial beam (40), 3) said complementary step may be followed by a fixing step in which a connecting means (6) is applied to the end (42,43) of said axial beam (40) so as to form said brush (1) and so that said long fibers (810) can not deviate from said axial direction (10) during use of said brush (1).

  Said complementary step, which takes place after the step d) of forming the twist (21), can be performed either before or after step e), in the case where the latter is implemented, which is the more often the case.

  In said complementary step of the method: - said blank (1 ') can be rotated in said axial direction, typically by means of a lathe (70), at a rotation speed S2 sufficient so that in such a way that said second plurality of long fibers (810), subjected to the centrifugal force resulting from said rotation, extends perpendicular to said axial direction (10) and typically forms a ring gear (44) perpendicular to said axial direction (10), can be rotated a tube (71) of inner radius R, disposed in said axial direction (10), at a rotation speed S2 'typically equal to the rotation speed S2 of said blank, - then said blank can be introduced (1 ') in said tube (71) so as to fold said ring (44) of long fibers (810) axially and to obtain said axial beam (40), said axial beam (40) comprising or forming said second plurality (4) of fibers disposed at a distance R from said axial direction, with R typically ranging from 1 mm to 4 mm.

  To obtain a right axial beam (40), it suffices to have 52 '= S2.

  To obtain a helical beam, it suffices to have Q 'slightly different from Q. Depending on whether we have Q'> S2 or S2 '<Q, we will obtain a helical winding in one direction or the other (right or left).

  It is possible and advantageous to take advantage of the rotation of the blank (1 ') to simultaneously perform said step e) of the method.

  Indeed, said blank (1 ') being rotated and said long fibers (810) forming said ring (44), a cutting tool can be approached from the plurality (3) of radial bristles (30) to realize simultaneously said step e) of said method.

  As illustrated in Figures 4c, 7b and 7f, said fixing step may comprise forming a ligation (60) of the end (42, 43) of the long fiber bundle (40, 41) forming said second plurality of hair (4).

  As illustrated in FIG. 7a, said fixing step can be carried out during the securing of said upper portion (28) of said brush (1) to said applicator rod (5), typically by overmolding said rod (5). on said upper portion (28) against which the end (42, 43) of the bundle (40, 41) of long fibers forming said second plurality of bristles (4) has been plated.

  As illustrated in FIG. 1a, said first short fiber web (80) (800) and said second web (81) of so-called long fibers (810) can be arranged side by side in said pin (29).

EXAMPLES OF REALIZATION

  All the figures, except FIGS. 1b, 2a and 2b, are illustrations of exemplary embodiments according to the invention.

  In particular, FIGS. 1a, 3a, 3b, 4b relate to the manufacture of the same brush (1) of FIG. 4c, of which an enlarged portion has been represented in FIG.

  The brush variants (1) shown in FIGS. 6a to 6f were manufactured.

  The various connecting means (6) diagrammatically shown in FIGS. 7a to 7f have also been tested.

  For all the brushes (1) manufactured, the method according to the invention comprising at the beginning a positioning of the layers of fibers (8, 80, 81) similar to that of FIG.

  The positioning of the fiber plies (8, 80, 81) of Figure 1c corresponds to the brush configuration of Figure 6a.

  It would be easy to define the positioning of the fiber plies corresponding to each of the brush configurations according to the other FIGS. 6b to 6f.

  In all cases, the method schematized in FIG. 4a was used.

  All kinds of common commercial fibers have been used, and their blend, including polyamide fibers with a diameter of about 0.075 mm (3 mils), about 0.15 mm (6 mils), about 0 , 22 mm (9 mils), and about 0.3 mm (12 mils).

  Brushes (1) were made in which short fibers (800) of diameter D 1 and long fibers (810) of diameter D 2 were used, with D 2> D 1, and typically with D 2 of between 1.5. D1 and 5.D1.

  BENEFITS OF THE INVENTION On the one hand, the invention makes it possible to manufacture a new generation of brushes which are radically different from conventional brushes insofar as, compared to a conventional brush formed of radial bristles, the brush according to the invention forms a trellis formation by the entanglement of radial bristles and axial bristles, which modifies both the flexibility of the radial bristles, the contact of the eyelashes on the brush, the removal of mascara, etc ...

  On the other hand, the invention can use the usual types of fibers, so that it is possible to obtain a wide variety of brushes from the existing fibers.

  In addition, the brushes according to the invention make it possible to widen the possibilities of special effects which the users wish to obtain during the make-up of the eyes. In addition, the brushes according to the invention also make it possible to widen the possibilities of formulation of the mascara, and in particular they make it possible to use possibly a mascara more fluid than the traditional mascaras.

  Finally, the brushes according to the invention can be manufactured economically, thanks to the manufacturing method according to the invention, a process that can be implemented with minimal adaptation or transformation of traditional devices for making brushes.

LIST OF REFERENCES

  Mascara Brush 1 1 '' 1 ", 1", 1 "1 '' Brush Mascara Brush from Prior Art Roughing 1 to Axial Direction 10 Core 1 2 Spire 2 20 Twist Twist 21 Twisted Twist 21 210 Lower end 2 and 26 22 Upper end 26 23 First axial zone 2 for 3 24 Upper part 240 Lower part 241 Second axial zone 2 for 4 25 Upper part 250 Lower part 251 Part of 2 bearing 3 and 4 26 Middle part of 26 27 Upper portion of 2 free of 3 or 4 ..

28 Lower portion of 2 without 3 or 4 ... 28 'Pin 29 Metal strands of 29 290 First plurality of radial bristles of 1 3 Plurality of radial bristles before lengthening .. 3' Radial hair 30 Radial hair after setting length 30 'Second plurality of axial bristles of 1 4 1 o Axial bundle 40 Axial hair of 4, 40 41 High end 42 Low end 43 Crown of 810 perpendicular to 10 44 Miniature brush 45 Applicator rod 5 Connecting means 40 or 41 6 Ligature 60 Overmolding or Adhesive 61 Fixing ring 62 Device for manufacturing 1 7 Tower forming or rotating the ..

70 Tube 71 Fiber web 8 First web 80 Short fiber 80 800 Second web 81 Long fiber 81 810

Claims (26)

  1. A mascara brush (1) comprising a core (2), having an axial direction (10), formed of a helical twist (21) formed by two twisted strands (210) typically of a wire folded over it. same, and a plurality of bristles secured to said core (2) between said twisted strands (210) on a portion (26) extending over an axial length L of said helical twist (21) and comprising a succession of n turns ( 20), said plurality of bristles comprising a first plurality (3) of said radial bristles (30) extending radially with respect to said core (2), said core (2) having a length L> L, having a lower end (22) typically formed by a hairpin ply of said wire and an upper portion (28), typically of length Lo-L, intended to be secured to a rod (5) of a mascara applicator, and characterized in that said plurality of bristles comprises, in addition to said first plurality (3) of so-called radial bristles (30), at least a second plurality (4) of so-called axial bristles (41) since extending parallel to said axial direction (10).   2. Brush according to claim 1 wherein said second plurality (4) of bristles penetrates all or part of said first plurality (3) of bristles (30), so as to have an intersection of radial bristles (30) and bristles axial (41), typically at right angles.   3. Brush according to any one of claims 1 to 2 wherein said first plurality (3) of radial bristles (30) is secured to said core (2) on an axial length L '<L of said twist (21), and in which said second plurality (4) of axial bristles (41) is secured to said core (2) over an axial length L "<L. 4. Brush according to claim 3 wherein said axial lengths L 'and L "are such that L' + L" = L, said first plurality (3) of radial bristles (30) and said second plurality (4) of axial bristles. (41) being secured respectively to a first and a second axial zones (24, 25) of the core (2), said first axial zone (24) and second axial zone (25) being distinct and typically contiguous.   Brush according to claim 4 wherein said second axial zone (25) extends to a height H1, and said first axial zone (24) extends from said height H1, typically equal to L ", up to said height H2> H1, typically equal to L, said heights H1 and H2 being ordinates or axial distances counted from said lower end (22) taken as the origin, said second axial zone (25) typically adjoining said end lower (22) of said core (2).   6. Brush according to claim 4 wherein said first axial zone (24) extends to a height H'1, typically equal to L ', and said second axial zone (25) extends from said height H'1 up to a height H'2> H'1, typically equal to L, said heights H'l and H'2 being ordinates or axial distances counted from said lower end (22) taken as origin, said first axial zone (24) typically adjoining said lower end (22) of said core (2).   7. Brush according to claim 4 wherein said second axial zone (25) is between two parts (240, 241) of said first axial zone (24), between a so-called upper portion (240) of length Ls and a so-called portion. lower (241) of length LI, with L '= Ls + LI.   8. Brush according to any one of claims 4 to 7 wherein said second axial zone (25) comprises at least two pluralities of axial bristles (41), forming two distinct parts (250, 251), a so-called high part (250) of length LH and a so-called low part (251) of length LB such that L "= LH + LB.   9. Brush according to any one of claims 5, 7 and 8 wherein: a) all or part of said first axial zone (24) adjoins said upper portion (28), b) said second plurality (4) of axial bristles (41). ) is oriented towards said upper portion (28), said second plurality (4) of axial bristles (41) having an axial length sufficient to axially traverse said first axial zone (24) and for that second plurality (4) of axial bristles ( 41) forms an axial beam (40) having a so-called upper end (42) reaching said upper portion (28), c) a connecting means (6) secures said upper end (42) of said axial beam (40) typically to said upper portion (28), so that said second plurality (4) of axial bristles (41) can not deviate from said core (2) in particular when using said brush (1).   Brush according to any one of claims 6, 7 and 8 wherein: a) all or part of said first axial zone (24) abuts said lower end (28), b) said second plurality (4) of axial bristles ( 41) is oriented towards said lower end (28), said second plurality (4) of axial bristles (41) having an axial length sufficient to axially traverse said first axial zone (24) and for that second plurality (4) of axial bristles forms an axial beam (40) having a so-called lower end (43) at said lower end (22) or below said lower end (22), c) a connecting means (6) secures said low end (43) of said axial beam (40) typically at said lower end (22) or below said lower end (22), so that said second plurality (4) of axial bristles (41) can deviate from said end in lower (22) or said axial direction (10) in particular during use of said brush (1).   Brush according to any one of claims 9 to 10 wherein said connecting means (6) comprises a glue, ligation (60) or ring or fixing ring (62) surrounding and binding said beam (40) to its end (42, 43).   12. Brush according to claim 11 wherein said connecting means (6) secures said upper end (42) of said axial beam (40) to said upper portion (28) or said rod (5).   13. Brush according to any one of claims 3 to 12 wherein the total number of turns n of the portion (26) of the core (2) carrying said plurality of bristles (3, 4) ranges from 10 to 24, the number of turns n 'corresponding to said first plurality of bristles (3) and the number of turns n "corresponding to said second plurality of bristles (4) being such that n = n' + n" and that n '/ n "= L '/ L ".   14. Brush according to any one of claims 3 to 13 wherein L '/ L "is from 0.5 to 30, and preferably from 5 to 20, and wherein L ranges from 3 mm to 50 mm.   l0 15. Brush according to any one of claims 1 to 14 wherein said first plurality of bristles (3) is formed of radial bristles (30), typically polymeric plastic, N 'number per turn ranging from 5 to 80, length radial ranging from 2 mm to 20 mm, and with a diameter typically ranging from 0.05 mm (2 mils) to 0.375 mm (15 mils), said plurality of bristles being formed of bristles which are identical or different in diameter, their section , their chemical nature, or their mechanical characteristics.   16. Brush according to any one of claims 1 to 15 wherein said second plurality of bristles (4) is formed of axial bristles (41), in number N "ranging from 4 to 100, axial length 1" ranging from 5 mm to 60 mm, and with a diameter ranging from 0.05 mm to 0.375 mm.   The brush of claim 16 wherein said second plurality of bristles (4) comprises or is replaced by metal wires.   18. Brush according to claim 17 wherein said son son, taken one by one or group of several son, carry a plurality of beads of diameter typically less than 1 mm.   Brush according to any one of claims 1 to 18 wherein said second plurality of bristles (4) form a straight axial beam (40) or a helical beam.   20. A method of manufacturing a mascara brush (1) according to any one of claims 1 to 19 wherein: a) a metal pin (29) is formed by folding on itself a portion of wire so as to have two metal strands (290) of said pin, typically parallel, b) preparing a sheet of fibers (8), c) introducing said sheet (8) between the strands (290) of said pin, along an axial length L, so that, typically, said pin (29) forms a mediator of said fiber web (8), d) said pin (29) is then twisted so as to form a brush blank (1 ') comprising said core (2) forming said helical twist (21) solidarisant said fiber web (8) by n turns on said length L, e) all or part of said brush blank (1 '), after being rotated in said axial direction (10), is cut, usually using a cutting tool, so as to at the desired radial length all or part of said fibers and thus obtain said brush comprising a plurality (3) of radial bristles (30), and characterized in that: 1) in said step b), said sheet of fibers (8) comprises at least a first ply (80) of so-called short fibers (800), intended to form said first plurality of bristles (3), and a second ply (81) of so-called long fibers (810) intended to form said second plurality of bristles (4), 2) said method comprises a complementary step of orienting said plurality of long fibers (810) of said second ply (81) in said axial direction (10) so as to form said axial beam (40). ), 3) said complementary step is followed by a fixing step in which a connecting means (6) is applied to the end (42, 43) of said axial beam (40), so as to form said brush (1 ) and so that said long fibers (810) can not housing said axial direction (10) during use of said brush (1).   21. The method of claim 20 wherein said complementary step, which takes place after the step d) of forming the twist (21), is performed either before or after step e).   22. Method according to any one of claims 20 to 21 wherein, in said complementary step: - said blank (1 ') is rotated in said axial direction, typically using a lathe (70), to a rotation speed S2 sufficient for such that said second plurality of long fibers (810), subjected to the centrifugal force resulting from said rotation, extends perpendicularly to said axial direction (10) and typically forms a crown (44); perpendicular to said axial direction (10), a tube (71) of inner radius R, arranged in said axial direction (10), is rotated at a rotation speed D 'which is typically equal to the rotation speed S2 of said blank, - then introducing said blank (1 ') in said tube (71) so as to fold said ring (44) of long fibers (810) in the axial direction, and to obtain said axial beam (40), said beam axial (40) comprising or forming the said second plurality (4) of fibers disposed at a distance R from said axial direction, with R typically ranging from 1 mm to 4 mm.   23. The method of claim 22 wherein, said blank (1 ') being rotated and said long fibers (810) forming said crown (44), a cutting tool is approximated to the plurality (3) of radial bristles ( 30) to simultaneously perform said step e) of said method.   The method of any one of claims 20 to 23 wherein said securing step comprises forming a ligation (60) of the end (42, 43) of the long fiber bundle (40, 41) forming said second plurality of hair (4).   25. A method according to any one of claims 20 to 24 wherein said fixing step is carried out during the securing of said upper portion (28) of said brush (1) to said applicator rod (5), typically by over-molding of said shank (5) on said upper portion (28) against which the end (42, 43) of the long fiber bundle (40, 41) forming said second plurality of bristles (4) has been plated.   The method of any of claims 20 to 25 wherein said first short fiber web (80) (800) and said second long fiber web (81) (810) are disposed side by side in said hairpin (29). .