FR2848788A1 - Coloring dye application device for hair strand, has fixing unit placed on exterior face opposed to interior face for defining tank, where dye in tank is freed by pinching tank walls during longitudinal displacement of device - Google Patents

Abstract

The device has an application unit (2) to retain a quantity of a coloring dye and a fixing unit (5) placed in the application unit. The fixing unit is placed on an exterior face opposed to an interior face to define a tank. Coloring dye in the tank is freed by manually pinching walls (28) of the tank during a longitudinal displacement of the device relating to a hair strand.

Description

r r 2848788

  The present invention relates to a device for applying wicks to a hair product. The device according to the invention is very particularly suitable for allowing self-application of a coloring product to wicks. "Wicking" coloring is a treatment where only certain parts of the hair are soaked with coloring product, in order to obtain, once the treatment is finished, a non-homogeneous effect of color, thus emphasizing this or that movement of the hair. with shades of color lighter or darker than the natural or overall shade of the hair.

  There are several types of hair coloring products: temporary coloring, semi-permanent coloring, permanent coloring called oxidation.

  All these coloring products can be in the form of a cream, foam, or liquid of greater or lesser viscosity. The coloring products in liquid or gel form can be applied, optionally after mixing, from a porous medium. , like a foam On the other hand, the most viscous and pasty products are presented in bowls after mixing a bleaching powder and an oxidant in said bowl.

  To apply these products presented in bowls, there are known application devices derived either from the comb, or from the brush, or from a combination of the two. Such devices are described, for example, in documents FR-A-2 764 25 488 and US-A-4,691,720.

  Such devices generally suffer from the same drawbacks, linked to the fact, in particular in the context of a self-application of the product, that these devices are difficult to handle for producing wicks on the back of the head. Indeed, these devices are difficult to position E r with certainty when they are intended for application to the hair outside the direct visual field.

  In addition, spreading the product over the entire length of the wick is difficult to obtain from a brush when a very pasty product has to be deposited.

  Finally, known applicators are expensive to produce insofar as they result from an assembly of several often complex mechanical parts.

  The object of the invention is to remedy the problems mentioned above by proposing a device facilitating the self-application "in wicks" of a hair product. The device according to the invention comprises a means of applying the hair treatment product provided fixing means to be presented at an end of a finger.

  One of the advantages of the device according to the invention is conferred by the ergonomics of the application means which comprises a manually compressible reservoir The reservoir of the application means can contain a dose of product and release it following compression of one of its walls Indeed, the walls of this tank can be at least partially compressed to reduce their height relative to the fixing means.

  To coat the wick, the reservoir can in particular be compressed as it moves longitudinally along the wick by sliding from the roots to the tips. The wick is advantageously impregnated in a uniform manner, without depositing bundles although the product is pasty, and the width of the locks thus produced is easily reproducible, allowing a uniform result to be obtained over the whole of the hair.

  In the case where the application means comprises teeth, these preferably stand up with respect to a bottom of the application means so as to have a central depression defined with respect to a surface delimited by all of the ends of the teeth , the central depression forming the reservoir These teeth are also compressible. To ensure compression of the reservoir and drainage on the wick, the wick is for example physically pinched between an opening of the reservoir of the application means and at least one other finger of the hand In this case, a compression force is applied to the level of a bottom of the tank, through at a, r 2848788 minus one finger presented in the fixing means on an external face of this bottom, the tank being compressed between the at least one finger and the other finger with the hand Thanks to the device according to the invention, it is not necessary to have a great dexterity to obtain a suitable result. In a variant, the reservoir can be compressed so that the pinching is exerted laterally on a wall. delimiting the opening at the level of which the wick is presented.

  In a preferred embodiment, the fixing means is adjustable to the diameter of the finger on which it is mounted. For this purpose, it comprises, for example, two tabs able to be connected together. In this case, a first tab can be provided for be inserted into an orifice of a second tab, one of the tabs having several levels for fixing the first tab with the second tab Preferably, the two tabs allow the fixing of the fixing means around an anterior part of the finger.

  Preferably, in order not to shear the finger around which it is mounted, at least one tab has two arcs The two arcs are attached to the level of the application means, and join so that they can be connected jointly to the second tab The position arcs also gives greater stability of the application means on the underside of the finger around which it is mounted.

  Furthermore, to guarantee the positioning of the application means at the level of the last phalanx of the finger around which it is mounted, the application means comprises a stop on an outer periphery, to limit the insertion of the finger into the means of fixation.

  To reduce manufacturing costs, and moreover to facilitate the production and packaging of the device according to the invention, this forms a single piece, for example obtained by molding.

  To facilitate the compression of the reservoir, a holding member is preferably used which also serves as a support for presenting the wick opposite and against an opening of the reservoir. This holding member can be retained on the other finger by a fixing means. similar to that of the application means Furthermore, to ensure a function of guiding the fingers mounted around the application means and of the holding member, the application means is connected to the holding member by a bond, preferably a flexible strip.

  To obtain a progressive diffusion of the product contained in the tank, the holding member cooperates with an opening of this tank. Indeed, the holding member can be folded over the opening, so that the wick 10 is caught between the opening of the reservoir and this holding member The pressure is then exerted on an outer periphery both of the bottom of the reservoir and respectively an outer periphery of the holding member The pressure is obtained by pinching between the at least two fingers.

  When a wick is taken between the application means and the holding member, to guarantee that the wick remains well between these two elements and is coated over its entire length with the hair product, the application y and or the holding member comprises teeth intended to cooperate with the wick.

  For better application of the hair product to the lock, the holding member can be produced so as to form a second application means. In this case, the second means is also capable of retaining product. The two application means are then pressed one towards the other, on either side of the wick The wick is thus better impregnated with product For example, the holding member is the symmetrical of the application means relative to an axis orthogonally cutting the connecting element which connects them.

  The present invention relates to a device for the application in wicks 30 of a hair product comprising: i) an application means capable of retaining a quantity of said hair product, and ii) at least one fixing means presented by the means of application, and intended to allow its attachment to at least one finger of one hand,, I, I 2848788 characterized in that the application means comprises a compressible reservoir making it possible to release, in particular during a longitudinal displacement of the device relative to a wick, the amount of said product on said wick in response to manual pressure exerted on said reservoir.

  The invention will be better understood on reading the description which follows and on examining the figures which accompany it. These are only presented for information and in no way limit the invention. The figures show: Figure 1: a perspective view of a device according to the invention; Figure 2: a perspective view of a second embodiment of the device according to the invention; Figure 3: a perspective view of a mode of use of the device according to the invention; Figure 3a: a sectional side view of a first embodiment of a reservoir of the device according to the invention; Figure 3b: a sectional side view of N second embodiment of a reservoir of the device according to the invention; Figure 4: a perspective view of a preferred mode of use of the device according to the invention; Figure 5: a top view of a preferred embodiment of a device according to the invention.

  Figure I shows a device I according to the invention This device 1 comprises an application means 2 This application means 2 comprises a bottom 12 and a reservoir 27 presented at the level of an interior face 26 of this bottom 12 A dose of product can be stored in the reservoir 27 Preferably, this reservoir 27 is a manually compressible chamber, that is to say that the product stored in the reservoir can be externalized by compression of at least one wall 28 of this chamber These walls 28 erected on the bottom 12 of the application means 2 30 are compressed so as to reduce the volume defined by this reservoir 27.

  Preferably, during the application of a wick against an opening of this reservoir, the walls 28 are gradually co primed so as to deposit product all along the wick when the application means 2 is F 1 2848788 displaced longitudinally relative to this wick The device 1 comprises at least one fixing means 5 to be mounted on at least one finger 9 with one hand 7 The internal face 26 is opposite to an external face 5 The concepts of internal faces 21 and outer 13 are defined relative to the position of the finger 9 retained by the fixing means 5 on the application means 2, the outer face 13 corresponds to the face on the finger side 9, while the inner face 26 corresponds to the side face reservoir 27 intended to come into contact with the wick.

  For a better application of the product on the wick, the application means 2 has teeth 25 to cooperate with the wicking to be coated. The teeth 25 stand on all or part of the surface proposed by the inner face 26 The teeth 25 are by example arranged in rows, in particular near the edge of this inner face 26 Figure 1, the rows of teeth form the wall 28 and are compressible.

  The teeth 25 are preferably erected orthogonally to the lower face 26 They may be higher or lower between them relative to a plane defined by this lower face 26 In particular when the teeth 25 are arranged on all or part of the periphery of this face, a central depression is defined between these teeth The central depression can also be defined with respect to a surface delimited by all of the ends of the teeth In this case, the depression corresponds to the zone of the interior surface 26 where the teeth 25 are the shorter, and forms the reservoir 27 In a variant presented in FIG. 2, the reservoir 27 is defined by a continuous wall 28 protruding at the level of a border of the bottom 12 In this case, the teeth are therefore joined together at their base They then form a aliasing 30 at the edge defining the opening of the reservoir 27 This aliasing is for example presented on portions of edges of the wall located substantially in the axis along which the wick is supposed to be disposed relatively to the application means 2 in this case, the teeth 25 perform a comb function.

  For example, the reservoir 27 has an open cylindrical shape, or an open parallelepiped shape. In all cases, the niche is intended to be applied against the opening of this reservoir 27, as shown in FIG. 3.

  The manual pressure is preferably exerted orthogonally on the outer face 13 of the bottom 12 It is for example obtained by pinching Figure 3, to compress the reservoir 27 and ensure its emptying on the wick, the finger 9 retained in the fixing means 5 exerts pressure from this external face 10 13, at least one second finger 8 cooperates with said finger 9 retained in the fixing means 5.

  The second finger 8 is placed opposite the opening of the reservoir, and the wick to be coated is disposed between this second finger 8 and the opening of the reservoir 27 Preferably, the second finger 8 corresponds to the same hand as that corresponding to that which is retained in the fixing means 5 The fingers chosen to make the wick are for example the index finger and the thumb.

  The wall 28 of the reservoir 27 is compressible under the effect of manual pressure 20 In addition it is shape memory Indeed, after a first compression, if the pressure is released, the wall straightens to reform the reservoir 27 with its maximum internal volume It can then be loaded again with a quantity of product to be applied to a new wick.

  The reservoir 27 is for example made of a flexible material. A flexible material is preferably used, having a hardness between 30 and 150 Shore A, and preferably with a hardness equal to 60 shore A. The material used is for example chosen from SEBS (styrene ethylene butadiene block) polymers, or injectable thermosplastic rubbers, such as Santoprene (supplied by the company Monsanto), or more generally a thermoelastomeric material.

  The wall of the reservoir 27 may include bellows which can be crushed one on the other under the effect of a pressure, Figure 3 a To return to its initial shape, the wall may be provided with a helical spring, Figure 3 b , for example made as a rib of the wall The helical spring also defines preferential fold lines of the wall 28.

  In a preferred embodiment, Figure 4, a holding member 4 cooperates directly with the opening of the reservoir 27, and the wick to be coated is disposed between this holding member 4 and this opening In this embodiment, the means d application 2 and the holding member 4 are then each respectively provided with a fixing means 5 and 6 respectively. These fixing means 10 are intended to be mounted on at least two fingers of a user.

  In a preferred example, shown in Figure 4, the device 1 is then mounted on the fingers of the same hand 7 of a user. The application means 2 is presented on the thumb 9 of this hand 7 by means of the first means of fixing 15 5 Respectively, the holding member 4 is presented on the index finger 8 of this same hand 7 by means of the second fixing means 6.

  The retaining member 4 is provided to allow better compression of the walls 28 In fact, it offers a rigid interface against which the walls 28 can bear more firmly than when they are applied directly to the inner face of the second finger 8 The opening of the reservoir 27 can thus have dimensions greater than the surface area of the internal face of this second finger. 8 It is thus possible simply to make mies of width greater than that of a phalanx.

  The fixing means 5 and 6 can each implement different fixing mechanisms. They are preferably made in the same way. The different variants of the fixing devices envisaged in the invention will only be described for the fixing means. 30 embodiment of the fixing means 6 can be deduced by analogy from those of the fixing means 5, the holding member 4 being to be replaced if necessary by the application means 2.

  In a first variant, the fixing means 5 comprises a first tab 10 intended to cooperate with a second tab 1 1 These tabs 10 and 11 form flanges capable of being connected to each other For example these tabs 10 and 11 are defined in the continuity of the bottom 12 formed by the application means 2.

  In this case, they extend in opposite directions to each other These 5 tabs are provided so as to present a certain flexibility and can be bent one towards the other above the face outer 13 of the bottom 12 To be connected, the legs each have a complementary connecting means from one another.

  Preferably, the fixing means 5 is adjustable, in particular to a dimension, for example the diameter, of a finger around which it is mounted. For example, the first tab 10 has several orifices such as 14 in which a protuberance 15 of the second tab can be inserted Preferably the second tab 11 also has several protuberances such as 15. Thus the two tabs 10 and 11 have adjustment means.

  A protuberance 15, as shown in FIG. 1, is inserted by force into an orifice such as 14 In a variant, the protuberance 15 is inserted without forcing, the orifice 14 then has a shape similar to that presented in FIG. 2 The orifice 14 in this case has a shape corresponding to two circular openings 14 'and 14 "connected to each other by a recess 16 The circular openings 14' and 14" do not have the same diameter Thus, the protuberance 15 can be inserted into the opening of larger diameter 14 ′, and once inserted, slide it at the level of the recess 16 so as to bring it into the opening of smaller diameter 14 " o its exit will be prevented Preferably, when considering an orifice 14 of the first tab 10, the orifice of smaller diameter 14 "is the farthest from the application means 2 In fact, with such a configuration, in the 30 measure where the legs are constrained to be e connected, these tend to want to move away from each other, and maintaining the axcrôissance 15 remains in the opening of smaller diameter 14 ".

  In the variant shown in Figure 2, the tab 1 1 has an elongated tubular shape A protuberance 15 corresponds to a chamfered collar whose base 17 is of larger diameter than the diameter of the tube 11 from which it exceeds the base 17 is relatively closest to the application means 2 In this case, the largest diameter 14 ′ of the opening is greater than the diameter at this base 17, and the smallest diameter 14 ″ of the opening is greater than the diameter of the tube 11, but less than that of the base 17.

  In another variant, the fixing means 5 is in the form 10 of a finger box (not shown) in which at least one finger can be inserted.

  In this case, the finger-stick protrudes from the external face 13 of the application means 2. In another variant (not shown), the fixing means comprises a single tab intended to cooperate with a complementary means presented on the external surface of the means of application 2.

  The legs 10 and 11 preferably extend in two opposite directions of the same axis 18.

  According to the first embodiment, shown in Figure 1, the tabs extend along an axis 18 intersecting with the application means 2 The last phalanx of this finger is preferably placed at the level of the external face 13 of the bottom 12 This position confers greater precision in the application of the hair product.

  To avoid the shearing which could be caused by the fixing means 5, a tab breaks up into two arcs For example, as indicated in FIG. 5, the tab 10 has a first arc 20 and a second arc 30 21 Both arcs 20 and 21 move away from the portion of the tab presenting the connection means, here in this case the orifices 14, to come to be attached to the application means 2 at two distinct points For example, the defined space between the arcs 20 and 21 may be full, which amounts to proposing a tab 10 wide near the application means 2 and thinner at the connection means.

  In the case where the application means is connected by a connecting element 3 to the holding member, the first arc 20 is connected to the periphery of the bottom 12 of the application means 2, and the second arc 21 is connected directly on this connecting element 3, as shown in Figure 5.

  In a configuration where the second leg 1 also has two arcs 22 and 23 respectively, these are connected in the same way, and seen from above delimit with the arcs 20 and 21 the contours of a circle A segment 10 29 s 'then extends along a diameter of this circle, and the legs 10 and 11 extend radially, and orthogonally to this segment 29, towards the outside of the circle The segment 29 is disposed in the axis of the finger on which the yen application 2 is mounted, and the legs surround this finger so as to be connected on the side of the back of the corresponding hand The application means 2 is disposed on this segment 29 For example, Figure 5, the means of application 2 is arranged at one end of this segment 29.

  In a variant, this segment 29 corresponds to part of the connecting element 3, and the arcs can all be connected either to the connecting element 3 or to the application means 2.

  To improve the positioning of the finger relative to the application means 2 at which it is mounted, the fixing means 5 comprises a stop 24, Figure 3 In fact, this stop 24 is preferably braided 25 orthogonally to the outer face 13 of the bottom 12, there abutment 24 being for example placed at the level of an edge of the external face 13.

  The bottom 12 can, for example, have a rectangular or oval shape. In this case, the stop 24 can have a rectilinear or curved shape and then, when viewed from above, have a substantially U shape, the finger abutting in the hollow of the U The connecting element 3 is for example a connecting strip extending along an axis 19 between the application means 2 and the gold ane die holding 4 The axis 18 of the tabs is then for example perpendicular to this axis 19 According to a second embodiment, presented in FIG. 5, the axis 18 of the catches intersects the connecting element 3. The second embodiment allows attachment around a front part of the end of a finger.

  In a first embodiment, the retaining member 4 has the shape of a flat pallet of shape substantially identical to that of the opening of the reservoir 27. In the example of FIG. 3, the pallet is round ella has a diameter slightly greater than that of the opening of the reservoir 27 Thus, when the wick is supported by the retaining member 4, the periphery of the opening of this reservoir 27 can be pressed against the pallet Pinching, namely bringing together the two fingers towards each other, makes it possible to compress the walls of the reservoir between the bottom 12 and the pallet. The periphery of the opening is notched so as to allow the product to exit while the walls of the reservoir are gradually compressed.

  In a variant, the holding member 4 has a left surface, more intimately covering the finger on which it is mounted. The index finger does not naturally cover the thumb in parallel, this left surface makes it possible to favor the parallel position of the holding member 4 vis-à-vis the application means 2.

  In addition, the retaining member 4 can also include teeth such as 25 In this case, these can be oriented more or less 25 orthogonally to the pallet from which it protrudes The wick is for example guided between teeth of the holding member 4 and application means 2.

  In a variant, the retaining member 4 can also have a shape similar to that of the reservoir 27 In this case the retaining member 4 also performs a function of applying the product to the wick, which is then coated from two sides For example, the retaining member 4 is the symmetric of the reservoir 27 relative to a point located on the connecting strip 3, or relative to an axis orthogonally intersecting the axis 9.

  Preferably, the device 1 is formed from one obtained by molding a flexible and flexible material comprising several parts, in which case the hinge element c In this variant also, the teeth 2 5 the application means 2 and or the holding device 4.

  be made of synthetic and or natural strands, glued to the application means 2.

  unic.Da le lie 5 pei The these ue piece, for example ns a variant, it can aison 3 can be one can be added on teeth 25 can then) rins being for example

Claims (10)

  1 device (1) for the application in wicks of a hair product comprising: i) an application means (2) capable of retaining a quantity of said hair product, and ii) at least one fixing means (5) presented by the application means, and intended to allow its attachment to at least one finger (9) of one hand (7), characterized in that the application means comprises a compressible reservoir (27) 10 making it possible to release , in particular during a longitudinal placement of the device relative to a wick, the quantity of said product on said wick in response to manual pressure exerted on said container.   2 Device according to claim I characterized in that a wall (28) of the tank is compressible in response to a force exerted orthogonally relative to a bottom (12) at which the fixing means is presented.   3 Device according to claim 1 or 2 characterized in that a wall of the reservoir is formed by teeth (25) erected relative to a bottom, these 20 teeth delimiting a central depression defined with respect to a surface delimited by all of the teeth ends.   4 Device according to any one of claims 1 to 3 characterized in that a wall of the reservoir forms a bellows, for example provided with a helical spring with shape memory.   Device according to any one of Claims 1 to 4, characterized in that the fixing means is adjustable according to a dimension of the at least one finger around which it is mounted.   6 Device according to any one of claims 1 to 5 characterized in that the fixing means comprises two tabs (10, 11) able to be connected together, the tabs extending in a plane formed by a bottom of the tank.   7 Device according to claim 6 characterized in that a lug is attached by two arcs (20, 21, 22, 23) at the bottom of the tank.   8 Device according to any one of claims 1 to 7 characterized in 5 that the fixing means comprises a stop (24) on an outer periphery of the reservoir to limit the penetration of the finger relative to the fixing means.   9 Device according to any one of claims 1 to 8 characterized in that it comprises a holding member (4) capable of cooperating with the reservoir to maintain the wick in engagement with the reservoir so as to allow its coating with said product.   Device according to Claim 9, characterized in that the holding member can be folded down over an opening in the reservoir, the wick being taken between this opening and the holding member, the pressure exerted on the reservoir being obtained by pinching between a bottom of the tank and the holding member on either side of the wick.   11 Device according to claim 9 or 10 characterized in that the holding member 20 is identical to the application means.   12 Device according to any one of claims 9 to 11 characterized in that the holding member is connected by a flexible connecting strip to the reservoir. 13 Device according to any one of claims 1 to 12 characterized in that it forms a single piece, for example obtained by molding.