FR2805977A1 - IMPROVED REMOVAL AND SMOOTHING BRUSH - Google Patents

Abstract

The invention relates to a brush comprising: - a handle (400), - an assembly forming a ferrule (300) / receptacle (100), connected to the handle (400), - a layer of adhesive (112), inside the ferrule / receptacle assembly, and - a homogeneous tuft of fibers (200), without incorporated wedge, a first end of which placed in the ferrule (300) / receptacle (100) assembly is embedded in the adhesive layer (112) , while the second free end emerges outside the ferrule (300) / receptacle (100) assembly, and in which the tuft of fibers (200) has a density at least substantially homogeneous, over its entire length, from the end embedded in the layer of adhesive (112) to the second free end, and suitable for allowing a deflection of the fibers in the ferrule (300) / receptacle (100) assembly, so that use, the tuft of fibers (200) can be bent from its section located in the ferrule (300) / receptacle (100) assembly, beyond the adhesive layer (112).

Description

The present invention relates to brushes for applying products such as

  as paints, varnishes, glues or other liquids. Brushes with handles, tuft of fibers and ferrule have been proposed in the prior art, the ferrule surrounding both the handle and the tuft for

liaise between them.

  It has been proposed to secure the bristles together, at their end on the handle side, with a layer of glue. However, it is necessary

  to achieve a tedious alignment of the bristles before gluing them.

  It was also desired to reduce the cost of producing such brushes. For this, we know how to place wedges between bundles of hair at the base of the tuft to spare gaps and thus reduce the number

fiber, and cut costs.

  These gaps, however, form paint reserves in the tuft, which, if they allow a more durable deposition of paint after each soaking, however, cause inhomogeneities in the layer.

  of deposited paint, and favor drips from the tuft towards the handle.

  In addition, the fibers thus arranged constitute a tuft which is flexible only from a certain distance from the ferrule. Such limited flexibility in the vicinity of the free end of the tuft proves ineffective in

terms of removal and smoothing.

  We propose here to provide a brush easy to make, therefore inexpensive, which however allows a long and homogeneous removal of

  painting thanks to a particular flexibility of the tuft of fibers.

  This object is achieved according to the invention by means of a brush comprising - a handle, - a ferrule / receptacle assembly, linked to the handle, - a layer of adhesive, inside the ferrule / receptacle assembly, and - a homogeneous tuft of fibers, without incorporated shim, a first end of which is placed in the shell / receptacle assembly is embedded in the layer of adhesive, while the second free end emerges outside the ferrule / receptacle assembly, and in which the tuft of fibers has an at least substantially homogeneous density, over its entire length, from the end embedded in the layer of adhesive to the second free end, and suitable for allowing a deflection of the fibers in the ferrule assembly / receptacle, so that in use, the tuft of fibers can be flexed from its section located in the ferrule / receptacle assembly,

beyond the layer of glue.

  It has been found that with these provisions, the tuft has a large capacity for depositing and flexibility providing a surprising quality of application, flexibility in particular located at the base of the

  tuft, and especially from inside the receptacle.

  Thanks also to these provisions, such a brush can be easily produced by very easily adapting the nature, the length, the density of the fibers and their homogeneity, both transversely to the tuft and along their height, this adaptation being carried out according to products to be applied to obtain a large removal capacity and flexibility providing a surprising quality of application. Other features, objects and advantages of the present invention

  will appear on reading the detailed description which follows, made in

  reference to the appended figures in which: - Figure 1 shows in perspective a fiber holder according to the invention; - Figure 2 shows the same fiber holder in side view; - Figure 3 shows the same fiber holder in bottom view; - Figure 4 shows the same fiber holder from one end thereof; - Figure 5 shows a sectional view of a side wall of the same fiber holder; - Figure 6 shows in section a cover according to the invention intended to receive the fiber holder of Figures 1 to 5; - Figure 7 shows in longitudinal section a brush handle according to the invention, intended to be assembled with the cover

in the previous figure.

  - Figure 8 shows, in longitudinal section, a brush according to the invention, obtained by assembling the elements of Figures 1 to 7; - Figure 9 shows, in longitudinal section, a brush according to a variant of the invention; - Figure 10 shows a brush according to another variant of

The invention.

  - Figures 11 and 12 show a brush handle according to

  a variant, respectively in side view and in front view.

  The brush which will be described is a flat brush (but which can also be rectangular, round, oval or of any other shape). It consists here of four main elements, namely a fiber holder 100,

  a tuft of bristles 200, a cover or ferrule 300, and a handle 400.

  The fiber holder 100 is in the form of a plastic container, here in polyacetal, having a bottom wall 105 and a

  circumferential wall 110 forming the border of the bottom wall.

  The bottom wall 105 has an elongated shape on two sides

  straight and two ends in semicircles.

  The fiber holder 100 is designed to first receive a layer of

  glue 112 in its bottom, then the tuft of hairs 200.

  The bottom wall 105 is for this a solid wall forming with a base part of the side wall, a cup for receiving the adhesive.

before introduction of fibers.

  The side wall 110 however has a series of orifices 115, slightly offset from the bottom of the fiber holder, each having here a circular shape of small diameter (having an order of magnitude

  about a quarter of the height of the fiber holder).

  The adhesive is introduced into the fiber holder and enters the orifices 115. Not only does the adhesive conform to the internal contours of the orifices 115, but it passes through the orifices to also mold into cavities

anchors adjacent to the holes.

  When the tuft of fibers 200 is introduced into the glue 112, the glue rises slightly along the fibers as well as between the fibers and the side wall 110. The orifices therefore have a first function of forming an anchoring cavity for the glue once hardened, and a second function of fluid passage towards anchoring arrangements belonging to the rest of the

  brush. These latter anchoring arrangements will be described below.

  These different anchors are used for glue and therefore also for fibers.

  The orifices 115 are distributed over the periphery of the fiber holder according to the

width of the brush.

  The regular distribution of the orifices 115 at the edge of the bottom 105, at a constant height relative to the bottom, allows the adhesive outlet to be the same over substantially the entire length of the fiber holder after the introduction of the bristles. The final adhesive height in the fiber holder is

therefore homogeneous.

  A final adhesive thickness of between 1 and 5 mm proves satisfactory from the point of view of the strength and flexibility of the tuft, with a more advantageous thickness between 2 to 4 mm, and a

ideal thickness of 3 mm.

  Of course, a homogeneous distribution of the orifices is also easily put in place in the case of round brushes, on which one or the other of the set of arrangements above and below proposed

  can also be adapted to a round brush.

  The circumferential wall 110 comprises two ribs 120, parallel to the bottom, which extend over the entire contour of the fiber holder passing between the series of orifices 115 and an upper free edge of the wall 110. According to a variant, these ribs may only be present on

part of the outline.

  These ribs 120 are provided to be housed in corresponding grooves 320 of the internal wall of the cover 300, thus making it possible to position and hold in place the fiber holder 100 in the cover or ferrule

  300 before pouring the glue and introducing the bristles.

  The outer face of the circumferential wall 110 extends

  perpendicular to the bottom wall 105.

  However, the wall 110 has, on its internal face, a generally oblique orientation surface, that is to say which deviates from the center of the fiber holder when it is traversed away from the bottom 105. This orientation in spacing is found here advantageously over the entire inner periphery of the receptacle, but may not possibly be adopted

  on only part of the inner circumference.

  The inner face of the wall 110 has, in other words, an overall shape of funnel, which here corresponds to a reduction in the thickness

of the wall 110.

  More specifically, an inner surface of the wall 110 has an oblique portion 117 which is located at the half height of the wall, surrounded by two portions above 116 and below 118 and this

  oblique part, which are here both at right angles to the bottom 105.

  More precisely still, the half height 116 which is adjacent to the bottom 105 has an inner face at right angles to the bottom 105, and the last third 118 of height, on the free edge side is also at right angles. Between these two portions, the oblique portion extends to approximately 80 of the

bottom 105 of the fiber holder.

  This general shape flared inside the fiber holder constitutes a funnel at the introduction of the tuft of hairs, and gives the fibers a

  bending freedom chosen inside the fiber holder 100.

  In addition, the fact that the internal face comprises two portions, one 116 on the bottom side less inclined than the other 117, more distant from the bottom, is

particularly advantageous.

  The portion 116 of the wall located on the bottom side makes it possible, by its straight orientation, to maintain the orientation of the most lateral fibers vertically during the hardening of the adhesive, the more oblique part 117 allowing an inclination of the fibers, mainly when they are

subjected to lateral force.

  The fibers being allowed to flex inside the fiber holder 100, this gives increased overall flexibility to the tuft 200, in particular at the base of the tuft, giving a better quality of application.

  (better removal and better smoothing).

  In addition, since the interior of the side wall 110 first extends vertically and then obliquely, the side wall 110 is slightly spaced from the tuft of bristles 200 above the

oblique part 117.

  Such a gap between the tuft 200 and the side wall 110 retains

  any paint or solvent leaks inside the holder

  fibers 100, thus avoiding a flow outside the brush until

  handle as is the case with traditional brushes.

  This gap has a height suitable for retaining a satisfactory amount of paint, in particular in the oblique part 117, and the part

right 118 free edge side.

  To also ensure that no flow goes up the bristles and reaches the handle by an internal path with a brush (as is the case with traditional ferrules), it is provided that the fiber holder forms a sealed container, thanks to the fact that the orifices 115 are blocked by the adhesive. Sufficiently small orifices 115 are therefore provided.

  in connection with a sufficient quantity of glue for this.

  The polyacetal used here for the fiber holder has mechanical and chemical characteristics identical to metal by eliminating

however the risks of oxidation.

  Because the fibers are spaced from each other, and that the fiber portfolio 100 is generally flared, the fibers flex inside the fiber holder, giving the tuft 200 great flexibility, this is

  to say a high quality of application and a great ease of use.

  There is in particular a main bending zone which is located here in the fiber holder 100 while it is located about a third of the

  fiber height in traditional brushes with ferrules.

  However, the adhesive layer is particularly stressed, in particular pulled towards the front of the brush at its longitudinal edges. It has therefore proven advantageous to distribute the orifices along the longitudinal edges, thus allowing the use of a layer of adhesive.

particularly fine.

  To further accentuate the retaining effect of any paint or solvent leaks, the side wall 110 has, on its external face,

  at its free edge, a circumferential rib 125.

  This rib 125 has opposite the end of the tuft 200

  a flat face 127 perpendicular to the main axis of the brush.

  This face 127 forms a barrier against possible flows going up along the tuft and retains them on the tuft, towards the inside of the fiber holder. The cover 300 shown in FIG. 6 is provided to cover the fiber holder 100 until it comes to border, by its own free edge, that of the fiber holder 100, further extending the barrier towards the sides of the brush.

transverse 127.

  The cover 300, made of plastic, constitutes an envelope of generally flat shape, of internal section complementary to the external section of the fiber holder 100, and extending in the direction of the height of the

  fiber holder 100 over a length sufficient to accommodate both the holder

fibers and part of the handle 400.

  As specified above, this cover 300 has, for precise placement of the fiber holder 100 within it, a pair of internal grooves 320 receiving the two ribs 120 of the fiber holder. The fiber holder is also provided on the external face of its bottom wall 105 with unrepresented walls forming stiffeners and coming to bear in the bottom of the

cover 300.

  In addition, the cover 300 forms on its internal wall a rectilinear groove 330 which comes along each series of orifices 115, to receive the glue 112 passing through the orifices 115, and thus form an anchoring cavity for

this glue once hardened.

  Such a brush is therefore here produced by introducing the bristles into a closed fiber holder and secured to the cover (and to the handle), the assembly therefore forming, before the introduction of the fibers, a virtually non-removable handle / cover / fiber holder assembly, the fiber holder forming receptacle at bottom and side walls, fitted with an adjusted dose of liquid glue before introduction

fibers.

  We set up a type of fibers, a length and a density adapted to the product to be applied. In the present case of a paint brush, the fiber density at the glue layer is less than

0.55 grams / cm3.

  This density is substantially the same in the free part of the tuft, up to the level of the free end of the latter, so that the tuft has an ability to flex which is substantially uniform over its entire height, from its end attached to the glue, inside the receptacle

to its free end.

  A uniform spacing between the fibers is thus obtained, which gives the tuft a satisfactory paint retention capacity, as well as a

  deflection capacity of the fibers inside the receptacle.

  The regularity of deposit (spreading quality) is therefore

  markedly improved by the choice of such homogeneous fiber densities.

  There is no mass of paint under the brush during removal. The fact of adopting such a density, which is homogeneous and adapted to the product to be applied, which has not been mastered in the prior art, gives the tuft greater flexibility with equal length of hair (equal drawing). Such increased flexibility produces a smoothing (smooth and regular appearance of the paint layer) and a deposit (amount of paint retained by soaking)

both improved.

  In addition, the fact of sticking the hairs directly in place on the element which will hold them definitively in the brush makes it possible to easily adapt the chosen density, since the fibers are distributed naturally over the entire extent of the layer of glue 112 which is the extent

final within the brush.

  In other words, the fibers being bonded together directly within their final receptacle, they are distributed in density in a naturally homogeneous manner and precisely adapt to the contour of this receptacle. The placement of fibers with a chosen density is therefore easy, in

  using the very contours of the brush structure.

  According to a variant shown in FIG. 10, provision is made for the receptacle for bonding the fibers to consist of two distinct elements, that is to say that the bottom of the receptacle consists of an end face of the handle 400 and the side walls of the receptacle are constituted by the walls of a metallic ferrule 500 having in this case the

  shape of a sleeve surrounding the handle.

  A layer of adhesive 412 is placed in the bottom of the receptacle, that is to say on the front face of the handle 400, then the tuft of fibers 200 is immersed in the layer of adhesive 412, which hardens at once in simultaneous contact fibers and the bottom of the receptacle, the fibers being placed in a homogeneous distribution along the layer of adhesive 412 and matching the

edges of the receptacle.

  Provision is made for the edges of the receptacle to include concave stampings in the ferrule in which the

anchor the glue.

  The glue also comes to anchor directly on the handle 400, which here has pins 400 engaged in the glue layer 412 to retain it. According to a variant, it is provided that the bottom of a fiber holder such as the fiber holder 200, described with reference to FIGS. 1 to 8, is also provided with studs, pins or blades which retain the adhesive or the resin , especially in the case of wide or thick brushes. These elements have, for example, come in one piece with the fiber holder 200, as shown in

Figure 9.

  Regarding the first variant of Figures 1 to 8, for fixing the handle 400, the cover 300 forms, opposite to the tuft 200, a cover

  crossed by a hole for receiving the handle 400.

  The cover 300 forms for this a re-entrant tubular channel 340 forming a receptacle for a corresponding end tube 440 of the handle 400, the tube 340 carrying at its inner end an annular groove 345 and the tube 440 being provided with an annular rib corresponding to the groove 345. The groove 345 is further preceded by a retaining rib 347 in

  upstream with respect to the direction of insertion of the handle 400.

  The outline of the cover 300 has, in the main plane of the cover, a rounded shape around the fiber holder 200, and forms, in its center, a cavity 350 in a U shape towards the fiber holder, the bottom of which is extended by the tube of

withholding 340.

  A substantially flat handle 400 is provided, with a thickness close to that of the ferrule 300, and the end portion adjacent to the cover 300 having a U-shaped contour complementary to the U-shaped cavity 350 of the cover 300, and further forming , at the base of the U, the tube 440 which is inserted in

channel 340.

  The end portion of the U-shaped handle is therefore placed

  in the cavity of the same shape of the cover 300.

  The cavity 350 in U of the cover 300 has, on the internal face of the branches of the U, lugs 355 coming to be housed in complementary cavities 455 formed on the external faces of the U contour of the handle 400. These lugs and cavities prevent rotation handle 400

relative to the cover 300.

  Thanks to these arrangements, a 400 handle of the same type is used.

  dimensions for different widths of brush heads.

  This handle 400 also has a thinned part in the vicinity of its junction with the cover 300, which allows an efficient grip and

facilitates finishing work.

  The fiber holder 100 further carries, on the external face of its bottom wall 105, a projecting wall, not shown, which extends to the inside of the handle 400 through its end opening, c ' is to say

inside the tube 440.

  This wall is also oriented perpendicular to the main plane of the brush and has a width equal to the inside diameter of the tube 440. Thus, this wall forms a support arm against tilting of the fiber holder 100 inside the cover 300, in particular against tilting around an axis included in the plane of the brush and

  perpendicular to the main axis of the latter.

  One can provide another wall in another direction or even replace these walls with a complete cylinder, intended to prevent tilting in all directions. The cover 300 therefore forms a large envelope whose volume extends around the fiber holder 200 and beyond the latter towards the handle 400,

  as well as on the sides of the handle.

  In its volume located near the handle 400, the cover 300

  is practically empty. The present brush is therefore particularly light.

  In addition, the handle 400 is itself traversed by a longitudinal cavity 450 surrounded over its entire length by the handle, this cavity

  further increasing the lightness of the brush.

  By this sealed internal volume, the brush immersed by the tuft in a liquid, paint or solvent for example, has a mass less than that of the liquid and therefore it floats. Thus the brush plunged for example in a jar of solvent or a pot of paint remains moderately engaged in

  the liquid, handle above the surface of the liquid.

  The handle 400 and the cover 300 here have their interior volumes in mutual connection and have means for sealing this

volume thus assembled.

  The internal cavity 450 of the handle 400 is only open at the front end of the fixing tube 440, communicating with the interior volume of the cover 300, and the two fixing tubes 340 and 440 are respectively provided with a rib and an annular groove 345 and 445 making

  seal this passage between the two empty spaces.

  The internal cavity 450 of the handle can for example receive a filament or other element intended to activate an anti-theft detector such as

  those commonly used in supermarkets.

  The cover has a connection with the fiber holder 200 which is also sealed thanks to the cooperation of the circumferential ribs 120 of the

  fiber holder 100 with the corresponding internal grooves of the cover 300.

  This tight connection prevents paint from leaking out.

  inside the cover 300 and the handle 400.

  However, such a flow, even if it entered the cover 300, would not come into contact with the painter's hand, since the cover 300 assembled with the handle 400 forms a sealed envelope or barrier by

  elsewhere, between the fibers and the user's hand.

  The solvent cannot rise from the tuft 200 to the external surface of the handle 400, through the means for retaining the tuft 200, as is the case with the brushes and conventional ferrule, o the solvents

  cross the shell to the handle.

  The fact that the fiber holder 100, joined to the cover 300 by its contour, also forms a tight barrier at this junction makes it possible to facilitate the cleaning operation because no solvent comes to lodge above the tuft 200, as it this is the case with ordinary brush heads, where the solvent emerges in an annoying manner from the ferrule when the application is resumed. We therefore safely clean the tuft 200 until its

  base, avoiding an accumulation of paint in this place.

  This sealing protection at the hood / holder junction

  fiber is provided by means invisible to the user.

  The present handle 400 has, beyond its internal cavity 450, opposite the tuft of bristles 200, a recess 460 forming a transverse passage for hooking the brush which, in the plane of the handle, has an elongated section having substantially the half the length of the handle 400. This transverse passage is also intended to receive

  a colored insert or bearing the brand name of a distributor of the product.

  According to advantageous but non-limiting arrangements: - the cover 300 (or ferrule) shown in FIG. 6, is a separate element from the portfolio (or receptacle) 100; - The cover 300 and the fiber holder 100 are, according to a variant, formed by the same element; the adhesive layer 112 therefore hardens in one go in simultaneous contact with the fibers and the bottom of the fiber holder (or receptacle) 100, the inner surface of the wall 110 is beyond the second portion 117 and on the side of the free edge, a third portion 118 less oblique towards the outside than the second portion 117; - The ferrule surrounds the receptacle 100 on the side thereof which is opposite to the tuft of fibers 200, and externally borders the free edge of the side walls 110 of the receptacle 100. The means 300 which surround the receptacle 100 around a part the receptacle which is opposite the tuft of fibers 200 form a sealed envelope around this part of the receptacle 100; - The face of the handle 400 constituting the bottom of the receptacle is provided

  means 410 embedded in the adhesive layer 412 and retaining the latter.

Claims (24)

  1. Brush comprising: - a handle (400), - an assembly forming a ferrule (300) / receptacle (100), linked to the handle (400),   - a layer of adhesive (112), inside the ferrule / receptacle assembly, and - a homogeneous tuft of fibers (200), without incorporated shim, including a first end placed in the ferrule assembly (300) / receptacle (100) is embedded in the adhesive layer (112), while the second free end emerges outside the ferrule (300) / receptacle (100) assembly, and in which the tuft of fibers (200 ) has an at least substantially uniform density, over its entire length, from the end embedded in the adhesive layer (112) to the second free end, and suitable for allowing a movement of the fibers in the ferrule assembly (300 ) / receptacle (100), so that in use, the tuft of fibers (200) can be flexed from its section located in the ferrule (300) / receptacle (100) assembly, beyond of the adhesive layer (112).   2. Brush according to the preceding claim, characterized in that the receptacle (100) and the ferrule (300) consist of two separate elements. 3. Brush according to claim 1, characterized in that the   receptacle (100) and the ferrule (300) are formed by the same element.   4. Brush according to any one of the preceding claims,   characterized in that the adhesive layer (112, 412) is a layer hardened at one time in simultaneous contact with the fibers (200) and the bottom (105,   400) of the receptacle (100, 400, 500).   5. Brush according to any one of the preceding claims,   characterized in that the inner side faces (110) of the receptacle (100) are configured so as to move away from the center of the receptacle (100)   when moving away from the bottom of the receptacle (100).   6. Brush according to any one of the preceding claims,   characterized in that the receptacle (100, 400, 500) comprises arrangements on the interior faces of its side walls (110, 500) which form the anchor for the glue.   7. Brush according to any one of the preceding claims,   characterized in that the side walls (110) of the receptacle (100)   have a free edge slightly spaced from the edge of the tuft of fibers.   8. Brush according to any one of the preceding claims,   in combination with claim 5, characterized in that the internal lateral faces (110) of the receptacle (100) have at least one part which, going from the bottom of the receptacle (100) to a free edge of the side wall, includes: - a first portion (116) at a given angle relative to the bottom, - a second portion (117) oriented more obliquely than the   first towards the outside of the receptacle (100).   9. Brush according to the preceding claim, characterized in that the part (110) going from the bottom of the receptacle (100) to the free edge also includes, beyond the second portion (117) and on the side of the free edge, a   third portion (118) less oblique towards the outside than the second (117).   10. Brush according to any one of the preceding claims,   characterized in that the receptacle (100) has a free edge and a rib (125) running along this free edge, projecting towards the outside of the receptacle (100).   11. Brush according to any one of the preceding claims,   in combination with claim 6, characterized in that the anchoring arrangements (115) of the receptacle (100) are orifices (115)   passing through the side walls (110) of the receptacle (100).   12. Brush according to the preceding claim, characterized in that the orifices (115) have a size chosen in relation to the quantity of glue (112, 412) introduced into the receptacle (100) so that the glue comes   obstruct the orifices (115) after the introduction of the bristles (200).   13. Brush according to claim 11 or 12, characterized in that it comprises an element (300) intended to extend over at least two sides of the receptacle (100), which carries interior fittings (330) forming an anchorage for the glue, these arrangements (330) being arranged so   to come opposite the orifices (115) of the receptacle (100).   14. Brush according to any one of the preceding claims,   characterized in that the ferrule (300) forms an envelope around the receptacle (100) on the side thereof which is opposite the tuft (200), and borders   externally the free edge of the side walls (110) of the receptacle (100).   15. Brush according to any one of the preceding claims,   characterized in that it includes means (300) surrounding the receptacle (100) around a part of the receptacle (100) which is opposite the tuft of fibers (200), said means forming a sealed envelope ( 300) around   of this part of the receptacle (100).   16. Brush according to claim 15, characterized in that the envelope (300) is designed to retain sufficient air in the brush so that it floats in a liquid when it is immersed therein by the tuft of fibers (200).   17. Brush according to any one of the preceding claims,   characterized in that the handle (400) includes a longitudinal channel (450)   closed on its transverse contour by the handle (400).   18. Brush according to any one of the preceding claims,   characterized in that the adhesive layer (112, 412) has a thickness between 1 and 5 mm.   19. Brush according to any one of the preceding claims,   characterized in that the adhesive layer (112, 412) has a thickness between 2 and 4 mm.   20. Brush according to any one of the preceding claims,   characterized in that the adhesive layer (112, 412) has a thickness about 3mm.   21. Brush according to any one of the preceding claims.   characterized in that the density of the fibers at the glue layer   (112, 412) is less than 0.55 grams / cm3.   22. Brush according to any one of the preceding claims,   characterized in that the bottom wall (400, 500) of the receptacle (400, 500) is formed by one face of the handle (400) and the side walls (500) of the receptacle (400, 500) by the walls of a element (500) surrounding the handle (400).   23. Brush according to the preceding claim, characterized in that the face of the handle (400) constituting the bottom of the receptacle (400, 500) is provided with means (410) embedded in the layer of adhesive (112, 412) and holding back this one.   24. A brush according to claim 1, or according to any one of   claims 3 to 21, when not combined with claim   2, characterized in that the handle, the receptacle and the ferrule are formed by a single piece.