EP3681340B1 - Applicateur de produit cosmétique - Google Patents

Applicateur de produit cosmétique Download PDF

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Publication number
EP3681340B1
EP3681340B1 EP18765149.2A EP18765149A EP3681340B1 EP 3681340 B1 EP3681340 B1 EP 3681340B1 EP 18765149 A EP18765149 A EP 18765149A EP 3681340 B1 EP3681340 B1 EP 3681340B1
Authority
EP
European Patent Office
Prior art keywords
application
application member
applicator
central part
core
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP18765149.2A
Other languages
German (de)
English (en)
Other versions
EP3681340A1 (fr
EP3681340C0 (fr
Inventor
Camille Schreiber
Audrey THENIN
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
LOreal SA
Original Assignee
LOreal SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
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Publication of EP3681340A1 publication Critical patent/EP3681340A1/fr
Application granted granted Critical
Publication of EP3681340C0 publication Critical patent/EP3681340C0/fr
Publication of EP3681340B1 publication Critical patent/EP3681340B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B9/00—Arrangements of the bristles in the brush body
    • A46B9/02—Position or arrangement of bristles in relation to surface of the brush body, e.g. inclined, in rows, in groups
    • A46B9/021—Position or arrangement of bristles in relation to surface of the brush body, e.g. inclined, in rows, in groups arranged like in cosmetics brushes, e.g. mascara, nail polish, eye shadow
    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
    • A45D40/00—Casings or accessories specially adapted for storing or handling solid or pasty toiletry or cosmetic substances, e.g. shaving soaps or lipsticks
    • A45D40/26—Appliances specially adapted for applying pasty paint, e.g. using roller, using a ball
    • A45D40/262—Appliances specially adapted for applying pasty paint, e.g. using roller, using a ball using a brush or the like
    • A45D40/264—Appliances specially adapted for applying pasty paint, e.g. using roller, using a ball using a brush or the like movable within the container
    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
    • A45D40/00—Casings or accessories specially adapted for storing or handling solid or pasty toiletry or cosmetic substances, e.g. shaving soaps or lipsticks
    • A45D40/26—Appliances specially adapted for applying pasty paint, e.g. using roller, using a ball
    • A45D40/262—Appliances specially adapted for applying pasty paint, e.g. using roller, using a ball using a brush or the like
    • A45D40/265—Appliances specially adapted for applying pasty paint, e.g. using roller, using a ball using a brush or the like connected to the cap of the container
    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46D—MANUFACTURE OF BRUSHES
    • A46D1/00—Bristles; Selection of materials for bristles
    • A46D1/02—Bristles details
    • A46D1/0238—Bristles with non-round cross-section
    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46D—MANUFACTURE OF BRUSHES
    • A46D1/00—Bristles; Selection of materials for bristles
    • A46D1/02—Bristles details
    • A46D1/0253—Bristles having a shape which is not a straight line, e.g. curved, "S", hook, loop
    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46D—MANUFACTURE OF BRUSHES
    • A46D1/00—Bristles; Selection of materials for bristles
    • A46D1/02—Bristles details
    • A46D1/0292—Bristles having split ends
    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B2200/00—Brushes characterized by their functions, uses or applications
    • A46B2200/10—For human or animal care
    • A46B2200/1046—Brush used for applying cosmetics
    • A46B2200/1053—Cosmetics applicator specifically for mascara

Definitions

  • the present invention relates to applicators for applying a cosmetic composition to the eyelashes or eyebrows, having an applicator part made up of a core and a plurality of elements attached to the core, each element having a central part fitted onto the core and at least one application member carried by the central part.
  • the patent US 8 899 241 B2 discloses a first applicator of this type.
  • the core is constituted for example by a metal hairpin folded on itself and twisted, or by a shaft of non-circular cross section, the central part being passed through by one or more openings with corresponding shapes.
  • the patent US 9 591 916 B2 discloses further examples of applicators of this type, the central parts being in the form of disks that can be produced with complementary reliefs which allow them to be positioned with a mutually predefined angular orientation.
  • the application members are constituted of simple spikes or, in a variant, of spikes that have short offshoots about a third of the way along their length.
  • the application members are in the form of tabs, the thickness of which decreases in the direction of the radially outer edge of the element, these tabs being flattened in one and the same plane as the central part.
  • the tabs may be provided with concentric striations about the axis of the core, of small depth, or bosses or indentations of small size, forming a surface roughness.
  • the invention aims to meet this need and achieves this aim by virtue of an applicator for applying a cosmetic composition to the eyelashes or eyebrows, according to claim 1.
  • the applicator comprises:
  • the cosmetic composition intended to be applied to the eyelashes and/or eyebrows is a mascara composition.
  • a mascara composition conventionally has a viscosity greater than 5 Pa.s, notably between 5 Pa.s and 50 Pa.s, at 25°C, in particular measured with the aid of a Rheomat RM100 ® machine.
  • Such a mascara composition conventionally comprises a solids content, generally in an amount greater than or equal to 35% by weight relative to the total weight of the composition, a pulverulent colorant, in particular one or more pigments, notably one or more metal oxides, for example one or more iron oxides, and advantageously a film-forming polymer.
  • a mascara composition may also conventionally comprise one or more waxes, in a total amount of in particular between 5 and 40% by weight relative to the total weight of the composition.
  • the invention makes use of the fact that said elements can be produced separately so as to form reliefs thereon which would be difficult, if not impossible, to realize on conventional injection-molded brushes, in which the application members are molded in one piece of thermoplastic material with the core, on account of the problems associated with demolding.
  • the core has a longitudinal axis and each element is threaded onto the core along its longitudinal axis before the core is twisted, the core and the element, in particular the core and the central part of the element, being mechanically connected in order to substantially prevent the element from pivoting freely on the core.
  • Such a mechanical connection with no possibility of relative rotation of the core and the element(s) threaded onto the latter before twisting can be obtained by means of a core produced in the form of an elongate element that is made of plastically deformable material and has a non-circular (for example polygonal, such as square, rectangular, triangular, etc., oval, multilobed, etc.) cross section in the non-twisted state, said core being threaded through an orifice of complementary cross section provided in the central part of each of the elements.
  • a core produced in the form of an elongate element that is made of plastically deformable material and has a non-circular (for example polygonal, such as square, rectangular, triangular, etc., oval, multilobed, etc.) cross section in the non-twisted state
  • the core comprises two wires made of plastically deformable material, for example two metal wires, optionally joined together at one of their ends by being produced from a single wire folded into the form of a hairpin, and the mechanical connection with no possibility of relative rotation of the core and the element(s) threaded onto the latter before twisting is obtained by threading the wires of the core in the non-twisted state into two orifices, preferably with complementary shapes, provided in the central part of each of the elements.
  • the core carrying the element(s) is then twisted so as to obtain a helical spread of the application members along the longitudinal axis of the core.
  • the expression "the core is twisted” means here that the core, carrying the element(s), is subjected to torsion, realized for example by imparting on one of its parts a rotational movement about the longitudinal axis of the core (for example in the clockwise direction), while the other parts of the core remain rotationally fixed, or are subjected to a movement in the opposite direction (for example in the counterclockwise direction).
  • This torsional force is realized so as to impart a plastic deformation on the core, such that the latter takes on its twisted shape in a stable and definitive manner once this torsional force stops being exerted on it.
  • the present invention is not limited to just the above-described embodiments for ensuring the mechanical connection with no possibility of relative rotation between the core and the element, in particular between the core and the central part of the element, but rather extends to all technical equivalents known to a person skilled in the art for producing such a connection.
  • the protruding relief provided on the application member makes it possible to more easily control the eyelashes that come into contact with the applicator part in order to curl them or to spread the product over their surface for example.
  • the application member may be hollow and have a cavity that makes it possible to collect product by surface tension and thus to increase the autonomy of the applicator and/or to increase the loading capacity of the applicator, without otherwise losing any capacity for separating and combing the eyelashes.
  • This cavity preferably has a greatest dimension of at least 0.2 mm, better still at least 0.5 mm.
  • the application members can be produced easily with a shape suitable for separation and combing and in sufficient numbers to obtain a satisfactory makeup effect.
  • the invention makes it possible to produce wide application members that are capable of being loaded with a relatively large amount of composition while retaining a certain amount of flexibility, if desired, by producing them with the aid of a strand of material which surrounds the cavity, this strand preferably being contained in a plane.
  • the strand of material can be given any shape depending on the desired characteristics, and notably a constant or non-constant cross section around the perimeter of the cavity.
  • the strand of material can be given a shape that is narrower in places, if need be, in order to confer greater flexibility thereon.
  • the strand has a cross section, which is notably square, of for example between 0.04 and 1 mm 2 around at least a quarter of the perimeter of the cavity that it delimits, better still at least half this perimeter, or even three quarters or all thereof.
  • the presence of the cavity gives the hollow application members greater flexibility in order to pass the wiping member with which the container from which the composition is taken is equipped.
  • the strand of material can comprise at least a portion with a variable curvature.
  • the strand of material can comprise at least a slope discontinuity that forms an elbow.
  • the greatest width of the, notably hollow, application members, measured perpendicularly to their elongation axis, is for example greater than or equal to 0.5 mm, being preferably between 0.5 and 5 mm, better still between 1 and 2 mm.
  • the central part and the application members of an element are produced in one piece by molding thermoplastic material, notably from the same material.
  • Each element which is mounted on the core can have between 4 and 24 application members.
  • the element may have hollow application members, the cavity of which has a closed contour, thereby helping to improve the mechanical integrity of the application member, since the latter can then be produced without a free strand of material.
  • the applicator is produced with separate elements makes it possible to easily give the cavity of the hollow application members various shapes, the element being for example demolded along the axis of the central part, which is the general direction in which the core passes through the central part, this axis being able to be parallel to an axis along which the cavity passes through the application member. If need be, notably when the axis of the cavity is oriented perpendicularly to a radius, demolding can be carried out with elastic deformation of the application member.
  • the applicator can have one or more of the following characteristics, considered in isolation or in combination:
  • a further subject of the invention is a packaging and application device having:
  • a further subject of the invention is a method for the cosmetic treatment of the eyelashes and/or eyebrows, notably for making them up, comprising the step of applying a cosmetic composition to the eyelashes with the aid of an applicator according to the invention.
  • the packaging and application device 1 shown schematically and partially in figure 1 has a container 2 containing the composition to be applied and an applicator 3 for applying this composition.
  • the container 2 comprises a body which is provided for example, as illustrated, with a threaded neck 4 to which the applicator 3 can be fastened when the device 1 is not being used.
  • a wiping member (not visible in the figure) is secured in the neck of the container, in the usual manner. It may be a flexible lip with a conical, wavy or other shape.
  • the applicator 3 comprises an applicator part 5 which is used for applying the composition, this applicator part 5 being mounted at one end of a stem 6, the other end of which is carried by a gripping member 7 that also constitutes, in the example in question, a closure member for the container 2, being designed to be fastened to the neck 4.
  • the composition which is applied may be constituted by any cosmetic product intended for making up or for caring for the eyelashes and/or eyebrows.
  • it is mascara.
  • the composition may notably include pigments, such as iron oxides, dispersed in an aqueous or anhydrous medium.
  • the capacity of the container is preferably between 5 and 30 ml.
  • Figure 2 shows an example of an applicator part 5 produced from individual elements 10, one of which has been shown on its own in figure 3 .
  • the applicator part 5 is produced in accordance with the teaching of the patent US 8 899 241 B2 , as described below.
  • the elements 10 are thus mounted on a core 9 that holds them in a stacked manner and securely relative to one another.
  • This core 9 is a twisted core, produced from a metal wire folded into the form of a hairpin, as illustrated in figure 4 .
  • the core may be constituted by two separate metal wires that are positioned in a substantially parallel manner like the arms of the hairpin illustrated in figure 4 , onto which the elements 10 are threaded and which are then twisted.
  • the elements 10 have holes 11, which are shown schematically in figure 3 , for the arms 9a and 9b of the core to pass through before the latter is twisted.
  • the elements 10 are identical, but it would not constitute a departure from the scope of the present invention if elements 10 of different shapes were stacked on the core 9 within the applicator part 5.
  • each element 10 has hollow application members 20 which engage with the eyelashes or eyebrows while the applicator 3 is being used.
  • these hollow application members 20 alternate circumferentially with solid application members 30.
  • the application elements 20 and 30 have, in this example, the same exterior shape, but it would not constitute a departure from the scope of the present invention if the exterior shapes were different.
  • the central part 12 is in the form of a flattened disk, the holes 11 for the arms 9a, 9b of the core 9 to pass through being disposed symmetrically relative to an axis X of the element 10, which may be an axis of symmetry for the central part 12.
  • the element 10 has three hollow application members 20 which alternate with three solid application members 30, the hollow application members 20 being disposed at 120 degrees to one another about the axis X of the element 10.
  • the application members 20 or 30 have an enlarged head 40 linked to a base 41 by a stem 42 that is less wide than the head and the base.
  • the head 40 forms with the base 41, on the outside, a groove 45 on each side of the elongation axis Y of the application member 20.
  • the head is wider than the base 41.
  • This elongation axis Y is, in the example illustrated, an axis of symmetry for the application member, and coincides with a radius.
  • the surface of the central part 12, to which the application members are joined may be in the shape of a cylinder of revolution about the axis X, but further shapes are possible.
  • the application members 20 and 30 each have a flattened shape in a plane which is coincident with the flattening plane of the central part 12, this plane being perpendicular to the axis X and to the axis Z of the applicator part 5.
  • the application members 20 and 30 substantially meet at their base, where they are joined to the central part 12.
  • the application members 20 are formed by a strand of material 44 which extends through a loop that is closed by the central part 12. More particularly, this strand of material 44 is joined to the central part 12, forming a first elbow 51, which forms one of the sides of the enlarged base 41. The strand 44 continues beyond the elbow 51 with a U-shaped portion 52 that defines the groove 45 on one side of the application member 20 and then continues in the form of an arch 53, convex toward the outside, which forms the top of the enlarged head 40 of the application member 20.
  • the enlarged head 40 has, on the opposite side from the arch 53, edges 54 which are oriented toward the axis Y and toward the arch 53.
  • the groove 45 has edges that converge slightly toward the opening thereof, the bottom of the groove 45 being substantially flat for example, as illustrated.
  • groove 45 is delimited by edges which converge away from the bottom thereof further improves the retention of the composition within said groove by the surface tension effect.
  • Each application member 20 or 30 has a relatively squat shape, with a height h, measured between the vertex of the application member and the central part, which is substantially of the same order of magnitude as the width l of the application member, measured perpendicularly to the elongation axis Y.
  • a height h measured between the vertex of the application member and the central part, which is substantially of the same order of magnitude as the width l of the application member, measured perpendicularly to the elongation axis Y.
  • 0.5 h ⁇ / ⁇ 2 h For example, 1 mm ⁇ l ⁇ 6 mm and 2 mm ⁇ h ⁇ 8 mm.
  • the cavity 14 defined inside the strand of material 44 makes it possible to collect the composition within the applicator part 5 in spite of the passage through the wiping member on exiting the container 2.
  • Product can also collect in the grooves 45 formed between the head and the base of the application members 20 and 30, this collection of composition taking place at a non-zero radial distance from the central part 12. It is thus easier for the eyelashes and eyebrows to access the composition, since they do not have to be introduced as far as the central part 12 to be loaded with composition.
  • the protruding parts formed by the lateral ends of the enlarged heads are suitable for catching the eyelashes, and this can improve the controlling thereof by the applicator part, in order for example to curl them or spread the composition over the surface thereof.
  • the relatively wide base of the application members 20 and 30 gives them good stability with respect to forces which can be exerted while the applicator part 5 is being used, notably on passing through the wiping member or for applying the composition to the eyelashes and eyebrows.
  • the cavity 14 helps to confer flexibility for passing through the wiping member.
  • the elements 10 are threaded onto the core 9 and then the latter is twisted, as per the teaching of the patent US 8 899 241 B2 .
  • the number of elements 10 is for example between 2 and 100, better still between 5 and 15.
  • the elements 10 In order to manufacture the elements 10, they can be molded in a suitable mold such that demolding takes place along the axis X.
  • any thermoplastic material can be used to mold the elements 10, regardless of the shape of the central part 12 and of the application members joined thereto. It is possible notably to use a polyolefin or a thermoplastic elastomer, for example of the SEBS type.
  • the element 10 from a non-thermoplastic material, for example a metal or ceramic material.
  • the elements 10 can undergo rotation relative to one another, such that a progressive angular offset is created between the elements, along the core, this being able, if appropriate, to create helical furrows in the applicator part 5.
  • the elements 10 are mounted on a non-twisted core, for example one that is constituted by a shaft of non-circular cross section, and the central parts 12 have an opening with a corresponding shape, so as to allow the central parts to be mounted on the shaft without rotation relative thereto.
  • the elements 10 can be disposed on the core with their final orientation.
  • central parts 12 are produced with complementary reliefs which cooperate so as to make it easier to position one element 10 in a predefined angular position about the longitudinal axis of the core relative to the adjacent elements 10.
  • the depth p of the groove 45 is for example greater than or equal to 0.2 mm and the width w of the opening of the groove is for example between 0.2 and 3 mm.
  • the strand of material 44 can have a cross section which is substantially constant around the entire contour of the application member 20, between its ends that are joined to the central part 12.
  • the cross section of the strand 44 is for example around 0.25 mm 2 .
  • each element 10 has an alternation of hollow application members 20 and solid application members 30, there being four hollow application members 20 in the example in question, which are disposed at 90 degrees to one another.
  • each hollow application member 20 is formed by a strand of material 63 which describes a closed curve constituting an enlarged head 60, this loop being joined to the central part 12 by a leg 61.
  • the enlarged head 60 has the overall shape of a harpoon with a top arch 65, which has a substantially parabolic shape that is convex toward the outside, and a bottom arch 66, which is concave toward the central part 12 and has less of a curvature than the top arch 65.
  • the cavity 14 has a radial dimension which is thus at its maximum on the elongation axis Y and which decreases towards the meeting point between the arches 65 and 66.
  • the enlarged head 60 defines teeth 65 which are oriented in a direction away from the axis Y and toward the central part, this orientation helping to catch more of the eyelashes which are introduced into the applicator part 5.
  • the distance e between the enlarged heads 60 of two adjacent application members 20, 30 on the element 10 is relatively small and less than the distance between the legs 61 at their base.
  • the enlarged heads 60 are thus relatively close together.
  • This distance e may be between 0.1 and 0.3 mm, being large enough to allow an eyelash to pass into the space between two legs 61 under the enlarged heads 60.
  • Figure 6 shows that the elements 10 can be angularly offset on account of the twisting of the core.
  • the element 10 only has hollow application members 20, unlike the examples in figures 3 and 5 , where there is an alternation of application members of different natures in the circumferential direction.
  • All of the application members 20 are identical and each have a toothed shape.
  • the cavities 14 are delimited by a strand of material 80 which describes a succession of pointed arches, which are concave toward the outside, teeth being formed at the meeting point between two arches. More particularly, in the example illustrated, the strand of material 80 describes, starting from the central part 12, a first pointed arch 81, which is joined to a second arch 82, forming a first tooth 86, this second arch 82 itself being joined to a third arch 83, forming a tooth 84.
  • Each application member 20 has a shape that is symmetric with respect to its elongation axis Y.
  • the two arches 83 form a tooth 85, which defines the vertex of the hollow application member 20 and is situated on the elongation axis Y.
  • Each application member 20 thus has the overall shape of a holly leaf.
  • the cavity 14 extends over substantially the entire height h of the application member 20, less the thickness taken up by the strand of material 80.
  • the height m of the cavity measured along the elongation axis Y, that is to say along a radius in the example in question, is thus greater than or equal to half the height h .
  • Figure 7 shows that the gap e which exists between two adjacent application members, at the teeth 86, is relatively small and for example less than or equal to 0.3 mm, and may notably be between 0.1 and 0.3 mm.
  • the application members 20 substantially meet at their base, where the strands of material 80 are joined to the central part 12.
  • the fact that the teeth 86 of the adjacent application members are relatively close together makes it possible to form, between the first arches 81 of two adjacent application members, reserves of product in a relatively confined space 90 which only communicates with the outside through a relatively narrow opening 91, of width e .
  • the space 90 constitutes an almost closed cavity when the width e is less than or equal to 0.3 mm, better still less than or equal to 0.2 mm, even better still less than or equal to 0.1 mm.
  • the arches 82 which extend on either side of this narrow opening 91 define a product collection surface at a non-zero distance from the central part 12.
  • the user thus has a reserve of product in this space 94, where the eyelashes can be introduced, while benefiting from teeth formed at the meeting point between the different arches in order to grip the eyelashes.
  • Figure 8 shows that the elements 10 can be angularly offset with respect to one another, on account of the twisting of the core.
  • the element 10 only has solid application members 30.
  • Each application member 30 has a radial arm 300, provided at its end with an X-shaped head 301, having two inner arms 302 that are oriented at 90° to one another toward the central part 12, and two outer arms 303 that are oriented at 90° to one another toward the outside.
  • the center of the X is situated on the elongation axis Y of the application member 30.
  • the length s of the arms 302 and 303 is for example between 0.1 and 3 mm, this length being able to be identical or different for the different arms of the head 301.
  • the arms 302 and 303 extend at an angle of about 45° to the elongation axis.
  • the inner arms 302 form hooks suitable for gripping the eyelashes introduced into the applicator part. Their reentrant orientation makes it possible to readily catch the eyelashes.
  • the outer arms 303 define between one another a cavity 305 that is open toward the outside, in which the composition can collect by surface tension while remaining easily accessible for the eyelashes.
  • the bottom of the cavity 305 is situated at a distance q from the central part 12 of for example between 0.5 and 7.5 mm, better still between 1 and 6 mm.
  • the ratio q/h, where h is the total height of the application member, is preferably greater than or equal to 25%, better still greater than or equal to 50%
  • the elements 10 are angularly offset within the applicator part on account of the twisting of the core.
  • the variant embodiment in figures 11 and 12 has an alternation of application members 230 and 240 in the circumferential direction.
  • the application members 230 are in the shape of an outwardly facing arrow, while the application members 240 are in the shape of an inwardly facing arrow.
  • Each application member 230 thus has a leg 231 by which it is joined to the central part 12 and a head 232 with a shape that tapers toward the outside, forming, at its connection to the leg, discontinuities 233 which can be oriented substantially perpendicularly to the elongation axis Y of the application member 230.
  • the flat part of the head 232 is in this example parallel to the flattening plane of the central part 12.
  • the discontinuities 233 are for example situated more than half-way along the length of the application member starting from the central part 12.
  • the application members 240 have a radial arm 241 which is joined to an enlarged base 243 in the form of an arrowhead directed toward the central part 12.
  • Discontinuities 244 are formed at the meeting point of the arm 241 and the base 243, these discontinuities 244 being oriented perpendicularly to the axis Y.
  • the application members 230 make it possible to grip the eyelashes by virtue of the presence of the discontinuities 233 formed by the head 232.
  • the tapered shape of the application members 230 ensures good penetration of the eyelashes therebetween.
  • Each head 232 and the adjacent radial arm 241 form a sort of guide against which an eyelash can press when it is introduced into the applicator part 5, which can guide them until they cross the corresponding discontinuity 233, the gap between the head 232 and the radial arm 241 being preferably sufficient to allow the passage of an eyelash.
  • the discontinuities 244 allow the collection of composition at a distance from the central part 12, in a more easily accessible zone for the eyelashes than the surface of the central part 12.
  • an almost closed cavity 250 can be created in the space extending between the central part 12 and the edge of the discontinuity 244 along the leg 231 and the base 243.
  • Such a cavity 250 makes it possible to collect composition above the surface of the central part 12.
  • the distance between the base of the leg 231 and the origin of the base 243 at the central part 12 may be greater than the spacing e , such that the cavity 250 narrows away from the central part 12.
  • the difference between the height t at which the discontinuities 233 are situated with respect to the central part 12, measured along the elongation axis Y of the application member 230 in question, and the height u at which the discontinuities 244 are situated, is for example between 0 and 5 mm, better still between 0.5 and 2.5 mm, being for example around 1 mm.
  • the application members each have a flattened shape in the flattening plane of the central part 12, and have a thickness, measured along the axis X of the central part 12, which is less than or equal to the thickness of the latter.
  • each element 10 has a central part 12 that is thicker than in the above-described examples, and the application members each have a flattened shape in a plane which contains a radius and the axis X of the central part 12.
  • the elements 10 each have an alternation of hollow application members 20 and solid application members 30 with the same shape as those in the example in figures 2 and 3 .
  • the application members are more numerous and do not meet at their base, the spacing between two consecutive application members in the circumferential direction being for example greater than the thickness of one application member.
  • the element 10 has for example 18 application members, half of which are hollow.
  • Figure 14 shows that an angular offset can be induced by the twisting of the arms 9a and 9b of the core.
  • the application members 20 and 30 are identical to those in the example in figures 5 and 6 .
  • the disposition thereof on the central part 12 is identical to that in the example in figure 13 .
  • the application members 20 are identical to those in the example in figures 11 and 12 .
  • the disposition thereof on the central part 12 is identical to that in the example in figure 13 .
  • the application members 20 are identical to those in the example in figures 7 and 8 .
  • the disposition thereof on the central part 12 is identical to that in the example in figure 13 .
  • the hollow application members can be given yet other shapes, and notably they can be produced with at least one bridge of material on the inside to form two interior cavities.
  • the hollow application members define closed cavities. It is possible to produce the hollow application members with almost closed cavities.
  • figure 3A shows an example of such a hollow application member 20', the outer contour of which is substantially identical to that of a hollow application member 20 of the example in figure 3 apart from an interruption 130 to the strand of material 44, this interruption having a width e less than or equal to 0.3 mm, better still less than or equal to 0.2 mm, even better still less than or equal to 0.1 mm.
  • An almost closed cavity can have the advantage of allowing an eyelash to pass through the interruption 130 and/or to confer greater flexibility on wiping.
  • the interruption 130 is positioned at the vertex of the application member, but could be positioned elsewhere, for example at the connection to the central part 12.
  • Almost closed cavities can also be formed between two adjacent application members of one and the same element 10, when these have portions that are sufficiently close together away from their base.
  • a small gap e can also tend to retain a certain quantity of composition outside the application members, for example in the recess 68 formed between the convex surfaces defining the top of the heads 60 in the example in figure 5 . This can make it easier for the eyelashes to access the composition with which the applicator part 5 is loaded.
  • the element 10 has an alternation of application members 30a and 30b which follow one another in the circumferential direction around the central part 12.
  • the application members 30a and 30b each have the overall shape of a V, with two diverging arms 140 toward the outside for the element 30a and two diverging arms 150 for the element 30b.
  • the opening angle k' of the V is for example between 15 and 60°, better still between 30 and 45°.
  • the arms 140 are bent toward the outside at their distal end and have two end portions 141 that are oriented perpendicularly to the elongation axis Y, which is an axis of symmetry for the application member and is coincident with a radius.
  • the arms 150 are likewise bent at their distal end, but at a greater angle than the arms 140, such that the end portions 151 formed by the elbows each form an acute angle c with the corresponding portion 152 of the arm which is joined to the central part 12.
  • the arms 140 meet at their base. The same goes for the arms 150.
  • the application members 30a and 30b thus each form two reliefs that are able to improve the catching of the eyelashes during make-up application.
  • Catching is particularly pronounced with the application members 30b on account of the orientation of the end portions 151.
  • the gap e between the free end of one portion 151 and the adjacent arm 140 of the neighboring application member 30a is small and less than 0.3 mm, better still less than 0.2 mm, even better still less than 0.1 mm, such that two application members 30a and 30b form, between one another, an almost closed cavity 156 that is able to collect a certain amount of composition.
  • the portions 141 and 151 can also define, between one another, a space that leads to the outside and contains composition, the latter being able to be retained between said portions on account of its viscosity. This collection of composition at a relatively large radial distance from the central part makes it easier for the eyelashes to access the composition.
  • the elements 10 can be angularly offset from one element 10 to the next on account of the twisting of the core.
  • each element 10 of the applicator part 5 has a succession of identical application members 160, for example 14 thereof.
  • Each application member 160 has a leg 161 which extends along the elongation axis Y, and has four successive elbows 162 to 165, each at a right angle in the example in question.
  • the elbow 162 is directed in the clockwise direction, the elbow 163 toward the outside, the elbow 164 in the counterclockwise direction, and the elbow 165 toward the outside.
  • the elbows 163 and 164 form a groove 167, the bottom of which is defined by a segment 168 of the application member.
  • the distal portion of the application member is defined by a segment 169 which is parallel to the segment 168 and perpendicular to the segment 170, which forms the elbow 162 with the leg 161.
  • the segment 169 is offset toward the segment 168 with respect to the leg 161.
  • the gap e between the elbows 162 and 163 of two consecutive application members on the element 10 is relatively small, and is much less than the distance between the legs of these application members and their base.
  • the legs 161 form, with the segment 168 which is directed from one of the application members toward the other, an almost closed cavity 166 in which the composition can collect.
  • the groove 167 makes it possible to form a reserve of composition away from the central part, thereby allowing the eyelashes to be loaded without the latter having to be dipped deeply into the applicator part.
  • the segment 172 which defines, with the distal segment 169, the elbow 164 also makes it possible to retain the composition on a surface radially away from the central part 12.
  • the notch formed by the succession of elbows 162 to 164 forms a kind of hook that is able to improve the catching of the eyelashes on the applicator part 5.
  • the distal segments 169 make it possible to benefit from a surface having a high capacity for separating the eyelashes, since they make it easier to introduce the eyelashes between the application members.
  • a variant embodiment in which the application members 180 each have the overall shape of a V, with two arms 181 diverging toward the outside, having bases that meet, and being provided at the end with enlarged heads 182 in the form of disks, will now be described with reference to figures 27 and 28 .
  • the angle d of divergence between the axes of the arms 181 is for example between 15 and 60°, better still between 30 and 45°.
  • Each head 182 forms, with the arm 181 to which it is joined, a discontinuity 183 which makes it possible to improve the catching of the eyelashes with the applicator part 5.
  • the close-together heads 182 of two consecutive application members 180 can, when the gap e between them is sufficiently small, i.e. less than or equal to 0.3 mm, better still less than or equal to 0.2 mm, even better still less than or equal to 0.1 mm, form an almost closed cavity 187, which is delimited on the inner side by the central part 12, on the sides by the arms 181, and on the outer side by the heads 182.
  • the heads 182 can receive a certain load of composition on their surface that faces towards the outside, thereby increasing the quantity of composition available on the outer surface of the applicator part 5.
  • the composition can collect in the recesses 188 formed between two heads 182 if the latter are sufficiently close together for a bridge of composition to form by capillary action.
  • two consecutive elements can be angularly offset on account of the twisting of the core.
  • the exemplary embodiment shown in figures 29 and 30 has application members 200 that are each formed by three arms, namely a central arm 201, which extends along the elongation axis Y of the application member 200, is longest and is formed by a simple spike, and two diverging lateral arms 202, that deviate from the central arm 201 away from the central part 12 and are each provided at their end with an enlarged head 203, for example in the form of a disk or ball.
  • the length j of the central arm 201 is greater than the height k of the lateral arms 202 measured at the vertex of the head 203.
  • the angle f of divergence between the axes of the arms 202 is for example between 15 and 60°, better still between 30 and 45°.
  • the arms 201 and 202 meet, for example, at their base.
  • each head 203 and the central arm 201 when it is sufficiently small, i.e. less than or equal to 0.3 mm, better still less than or equal to 0.2 mm, even better still less than or equal to 0.1 mm, can make it possible to form an almost closed cavity 205 that is able to collect a certain amount of composition.
  • the composition can collect on the top of the heads 203, on either side of the central arm 201.
  • an eyelash when introduced into the applicator part 5, it can press against the head 203 and be loaded with composition. It can also be introduced between the heads 203 of two adjacent application members 201 that are spaced further apart than the heads 203 are from the central arm.
  • the presence of the arms 202 provided with heads makes it possible to improve the catching of the eyelashes by the applicator part 5, by virtue of the discontinuity formed at the base of the head, where it is joined to the arm, which tends to retain the eyelash.
  • the elements 10 can be angularly offset within the applicator part on account of the twisting of the core.
  • each application member 220 has a central arm 221 provided at its end with an enlarged head 222, and two lateral arms 223 that are disposed on each side of the central arm 221 and diverge toward the outside.
  • the lateral arms 223 are formed by simple spikes. The arms 221 and 223 meet at their base.
  • the angle g of divergence between the axes of the lateral arms 223 is for example between 15 and 60°, better still between 30 and 45°.
  • This angle g and the length of the lateral arms 223 can be chosen such that their ends are sufficiently close together for them to be considered to form, with the central part 12, an almost closed cavity 225.
  • the adjacent lateral arms 223 of two consecutive application members 220 of an element 10 can help to retain a certain amount of composition at the end of the arms 223, at a radial distance from the central part 12.
  • the gap e between the arms 223 can be less than 0.3 mm, better still 0.2 mm or less, even better still 0.1 mm or less.
  • the presence of the head 222 creates a discontinuity 224 at its base, which is able to improve the catching of the eyelashes by the applicator part.
  • each lateral arm there is also a V-shaped groove that is open toward the outside, into which an eyelash can be introduced, which can help to take hold of the eyelash in order to spread the composition on its surface.
  • Two consecutive elements 10 may be angularly offset on account of the twisting of the core.
  • the application member 300 comprises a central arm 302 and two lateral arms 304 extending laterally from the central arm 302 toward the end of the application member.
  • the lateral arms 304 protrude from the central arms 302 and can catch the eyelashes. They form with the central arm 302 an enlarged head.
  • the lateral arms 304 form elbows with the central arm 302.
  • the central arm 302 can comprise an enlarged portion 306 as illustrated in figures 32 and 36 .
  • the lateral arms 304 can extend from the enlarged portion, as illustrated in figure 32 , or not, as illustrated on figure 36 .
  • the applicator member 400 comprises a arm 402 extending from the applicator element and an enlarged head 404 at the end of the arm 402 extending only on one side of the application member.
  • the enlarged head 404 comprises a protruding relief 406 extending toward the application element from the enlarged head.
  • Such enlarged head 404 and protruding relief 406 form a relief to catch the eyelashes.
  • Figure 34 displays an application member 500 comprising at its end a hook 402 to catch the eyelashes.
  • the hook is formed by an elbow of the application member 500.
  • the application member 500 can comprise as illustrated a protrusion 504 in a hook form extending laterally from the side of the application member 500.
  • Figure 35 shows an application member 600 that comprises a central arm 602 and two arms 604 extending laterally from the end of the central arm 602 toward the central part.
  • the arms 604 form an enlarged head that is configured to catch the eyelashes.
  • the application member 700 forms a loop 702 comprising protruding reliefs 704 on its surface to the outside of the applicator.
  • the reliefs 704 can catch the eyelashes.
  • the loop 702 is illustrated as a closed loop. However, the loop could comprise an opening.
  • the core elements 10 which are not identical, being made for example of different materials, notably with different hardnesses, and/or having application members with different shapes.
  • the core can be given a curvature, such that the applicator part extends along a curved longitudinal axis.
  • the elements 10 can be produced with holes 11 positioned differently on the central part 12, such that it is possible to thread the elements 10 onto the core while offsetting them angularly.

Landscapes

  • Cosmetics (AREA)
  • Brushes (AREA)
  • Coating Apparatus (AREA)

Claims (14)

  1. Applicateur pour appliquer une composition cosmétique aux cils ou aux sourcils, comprenant :
    - un noyau (9) ayant un axe longitudinal (X), le noyau (9) étant torsadé,
    - au moins un élément (10) fixé au noyau, chaque élément comprenant une partie centrale (12) fixée sur le noyau et des organes d'application portés par la partie centrale, chaque organe d'application ayant au moins un relief en saillie pour saisir les cils qui est formé par :
    ∘ une tête élargie (40 ; 60 ; 182 ; 203 ; 222 ; 232 ; 301), chaque organe d'application étant aplati dans un plan d'aplatissement commun à tous les organes d'application de l'élément (10), ou
    ∘ une partie fléchie (164 ; 152, 151), chaque organe d'application ayant un brin de matériau (44) qui décrit au moins une fente, l'organe d'application ayant une patte (161) qui est fixée radialement à la partie centrale (12), un premier coude (162) sensiblement à angle droit, un deuxième coude (163) sensiblement à angle droit vers l'extérieur, un troisième coude (164) sensiblement à angle droit vers un axe d'allongement (Y) de la patte, et un quatrième coude (165) sensiblement à angle droit vers l'extérieur, une partie distale (169) de l'organe d'application étant droite et excentrique par rapport à l'axe d'allongement de la patte, ou chaque organe d'application (500) comprenant à son extrémité un crochet (502) pour saisir les cils, ou
    ∘ une partie dentée, chaque organe d'application comprenant un relief en saillie défini par une dent (86) formée au point de rencontre de deux arcs pointus (82, 83) qui sont concaves vers l'extérieur,
    chaque élément (10) étant monté sur le noyau (9) le long de son axe longitudinal avant que le noyau (9) soit torsadé, le noyau (9) et l'élément (10) étant reliés mécaniquement afin de sensiblement empêcher l'élément (10) de pivoter librement sur le noyau (10).
  2. Applicateur selon la revendication 1, dans lequel le relief en saillie est défini par la tête élargie (40 ; 60 ; 182 ; 203 ; 222 ; 232 ; 301), la tête étant par exemple en forme de flèche (232), ou en forme de champignon (40), ou ayant un contour circulaire, en particulier en forme de disque ou de bille, ou ayant un contour circulaire dans au moins un plan, ou étant en forme de croix.
  3. Applicateur selon la revendication 1, dans lequel le relief en saillie est défini par le brin de matériau (44) qui décrit au moins une fente.
  4. Applicateur selon la revendication 1, dans lequel le relief en saillie est défini par la partie fléchie (164 ; 152, 151) de l'organe d'application, et/ou le relief en saillie, dans le cas d'une partie dentée, a des dents qui font saillie d'au moins 0,2 mm par rapport à la partie à laquelle elles sont jointes.
  5. Applicateur selon la revendication 1, dans lequel les organes d'application ont deux bras (181) qui divergent à partir de la partie centrale, au moins l'un portant un relief de saisie (182), de préférence les deux bras portant un relief de saisie à leur extrémité.
  6. Applicateur selon la revendication 1, dans lequel les organes d'application présentent une forme générale en V avec des coudes aux extrémités du V, l'élément ayant de préférence une alternance d'un premier organe d'application (30a) ayant une forme générale en V avec des coudes orientés sensiblement perpendiculairement à un plan médian pour l'organe d'application, et un second organe d'application (30b) ayant des coudes orientés vers la partie centrale (12).
  7. Applicateur selon la revendication 1, dans lequel l'élément (10) a une alternance d'un premier organe d'application (230) ayant la forme générale d'une flèche, dont la pointe est dirigée vers l'extérieur, et d'un second organe d'application (240) ayant la forme générale d'une flèche, dont la pointe est orientée vers la partie centrale, la tête du premier organe d'application étant plus loin de la partie centrale que la tête du second organe d'application.
  8. Applicateur selon la revendication 1, dans lequel les organes d'application ont un bras central muni à son extrémité d'une tête élargie (222), en particulier ayant un contour circulaire, et deux bras latéraux en forme de V qui sont plus courts que le bras central.
  9. Applicateur selon la revendication 1, dans lequel les organes d'application ont une patte (61) et une tête élargie (60) ayant un bord externe qui est convexe vers l'extérieur et un bord interne qui est concave vers la partie centrale et qui présente une courbure moins grande que le bord convexe.
  10. Applicateur selon la revendication 1, dans lequel les organes d'application ont une base (41) et une tête (40) qui sont reliées par une tige (42) qui est moins large que la base et la tête, formant au moins une rainure (45), de préférence ayant des bords se faisant face qui convergent l'un vers l'autre en s'éloignant du fond de la rainure (45).
  11. Applicateur selon l'une quelconque des revendications précédentes, dans lequel les axes d'allongement (Y) des organes d'application sont coplanaires.
  12. Applicateur selon l'une quelconque des revendications précédentes, dans lequel au moins un organe d'application d'un élément (10) est aplati dans un plan, et en particulier chaque organe d'application est aplati dans un plan d'aplatissement commun à tous les organes d'application de l'élément (10) ou dans lequel le plan d'aplatissement des organes d'application d'un élément (10) est orienté dans un plan contenant l'axe (X) de la partie centrale (12), l'organe d'application (20) ayant de préférence une forme qui est symétrique par rapport à un plan médian contenant l'axe d'allongement (Y) de l'organe d'application et perpendiculaire au plan d'aplatissement.
  13. Dispositif d'emballage et d'application comprenant :
    - un récipient contenant la composition à appliquer ;
    - un applicateur selon l'une quelconque des revendications précédentes.
  14. Procédé de traitement cosmétique des cils et/ou sourcils, en particulier pour leur maquillage, comprenant l'étape d'application d'une composition cosmétique sur les cils à l'aide d'un applicateur selon l'une quelconque des revendications 1 à 12.
EP18765149.2A 2017-09-12 2018-09-12 Applicateur de produit cosmétique Active EP3681340B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1758405A FR3070840B1 (fr) 2017-09-12 2017-09-12 Applicateur cosmetique
PCT/EP2018/074652 WO2019053084A1 (fr) 2017-09-12 2018-09-12 Applicateur de produit cosmétique

Publications (3)

Publication Number Publication Date
EP3681340A1 EP3681340A1 (fr) 2020-07-22
EP3681340C0 EP3681340C0 (fr) 2024-06-26
EP3681340B1 true EP3681340B1 (fr) 2024-06-26

Family

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EP18765149.2A Active EP3681340B1 (fr) 2017-09-12 2018-09-12 Applicateur de produit cosmétique

Country Status (5)

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US (1) US20210059392A1 (fr)
EP (1) EP3681340B1 (fr)
CN (1) CN111093426B (fr)
FR (1) FR3070840B1 (fr)
WO (1) WO2019053084A1 (fr)

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FR3138763A1 (fr) 2022-08-12 2024-02-16 L'oreal Applicateur pour appliquer une composition cosmétique sur les cils ou sourcils
WO2024033431A1 (fr) 2022-08-12 2024-02-15 L'oreal Applicateur pour appliquer une composition cosmétique sur les cils ou les sourcils
EP4353123A1 (fr) * 2022-10-14 2024-04-17 Chanel Parfums Beauté Embout d'application de produit cosmetique comportant des bourrelets spiralant sur un corps principal de revolution

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Also Published As

Publication number Publication date
CN111093426B (zh) 2023-07-18
WO2019053084A1 (fr) 2019-03-21
US20210059392A1 (en) 2021-03-04
EP3681340A1 (fr) 2020-07-22
FR3070840A1 (fr) 2019-03-15
EP3681340C0 (fr) 2024-06-26
FR3070840B1 (fr) 2021-11-12
CN111093426A (zh) 2020-05-01

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