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WO2019115468A1 - Dispositif de conditionnement et d'application pour un produit cosmétique fluide - Google Patents

Dispositif de conditionnement et d'application pour un produit cosmétique fluide Download PDF

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Publication number
WO2019115468A1
WO2019115468A1 PCT/EP2018/084209 EP2018084209W WO2019115468A1 WO 2019115468 A1 WO2019115468 A1 WO 2019115468A1 EP 2018084209 W EP2018084209 W EP 2018084209W WO 2019115468 A1 WO2019115468 A1 WO 2019115468A1
Authority
WO
WIPO (PCT)
Prior art keywords
tip
lateral surface
conditioning
cosmetic product
application device
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.)
Ceased
Application number
PCT/EP2018/084209
Other languages
English (en)
Inventor
Camille Schreiber
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
Application filed by LOreal SA filed Critical LOreal SA
Publication of WO2019115468A1 publication Critical patent/WO2019115468A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • 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
    • A45D34/00—Containers or accessories specially adapted for handling liquid toiletry or cosmetic substances, e.g. perfumes
    • A45D34/04—Appliances specially adapted for applying liquid, e.g. using roller or ball
    • 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
    • A45D2200/00—Details not otherwise provided for in A45D
    • A45D2200/10—Details of applicators
    • A45D2200/1009—Applicators comprising a pad, tissue, sponge, or the like
    • A45D2200/1018—Applicators comprising a pad, tissue, sponge, or the like comprising a pad, i.e. a cushion-like mass of soft material, with or without gripping means

Definitions

  • This invention relates to a conditioning and application device for a fluid cosmetic product, of the type comprising a reservoir and an applicator connected to one another, the applicator and the reservoir extending respectively according to a first and according to a second axes; the reservoir defining an inner chamber able to receive the fluid cosmetic product; the applicator comprising an open-cell foam tip, said tip being of elongated shape, defining an envelope lateral surface closed onto itself about the first axis; an axial end of the tip, oriented towards the reservoir, able to be placed in fluidic communication with the inner chamber.
  • cosmetic product means a product such as defined in EC Regulation N° 1223/2009 of the European Parliament and the Council of November 30, 2009, relating to cosmetic products.
  • fluid cosmetic product means a cosmetic product that has a liquid or viscous base, or a powder.
  • a conditioning and application device of the aforementioned type makes it possible to apply a cosmetic product on a portion of the body of a user, in particular on the keratin fibers such as the nails, eyelashes or the eyebrows.
  • the cosmetic product is diffused in the open-cell foam that forms the tip, which allows for application by contact.
  • the application of the product using this type of device is generally carried out by exerting on the tip a pressure oriented towards the first axis.
  • a pressure perpendicular to the first axis leads to folding said tip, preventing a precise application of the product.
  • a pressure exerted according to the first axis requires using only a front face of the tip for the application, which limits the useful surface of said tip.
  • the invention has for objective to resolve these problems.
  • the invention has for object a device of the aforementioned type, in which the applicator further comprises a support extending along the first axis and comprising an inner lateral surface arranged in contact with the envelope lateral surface of the tip; an axial end of said support, opposite the reservoir, being formed by a free edge of the inner lateral surface.
  • each transversal section of the envelope lateral surface of the tip comprises a first and a second non-zero angular portions, delimited by the free edge of the inner lateral surface of the support, said inner lateral surface being arranged in the first angular portion and away from the second angular portion, said second angular portion of the envelope lateral surface of the tip being thus adapted to come into contact with a portion of the body of a user.
  • the end of the tip has a first radial portion supported by the support and a second radial portion that allows for application of the product.
  • the device comprises one or several of the following characteristics, taken individually or in any technically permissible combinations:
  • the free edge of the inner lateral surface of the support is between a first and a second planes perpendicular to the first axis, said first and second planes being separated from the continuous and non-zero length, the free edge being substantially oriented towards the second plane; a first portion of the inner lateral surface, between the first and second planes, forming a compression surface, able to compress the foam tip under the effect of a radial pressure exerted on said tip;
  • the second angular portion decreases continuously according to a axial progression from the second to the first plane
  • a second portion of the inner lateral surface of the support is closed onto itself around the first axis and in contact with the envelope lateral surface of the tip;
  • the foam of the tip is chosen from cross-linked polymer foams, preferably chosen from cross-linked thermoplastic material foams, said thermoplastic material being more preferably chosen from polyurethanes, polyesters, polyethers and polyethylenes;
  • a density of the foam is between 15 kg/m 3 and 60 kg/m 3 , preferably between 20 kg/m 3 and 40 kg/m 3 , more preferably equal to about 30 kg/m 3 ;
  • the foam has a number of cells per unit of length of 2.54 cm between 10 and 80, preferably between 20 and 50, more preferably equal to about 30.
  • the invention further relates to a set for conditioning and applying a fluid cosmetic product, comprising: a conditioning and application device such as described hereinabove; and a volume of fluid cosmetic product received in the inner chamber of the reservoir.
  • the invention further relates to a method for applying a fluid cosmetic product, comprising: the supply of a set for conditioning and applying such as described hereinabove; the placing in fluidic communication of the axial end of the tip with the volume of fluid cosmetic product, in such a way as to diffuse said product in the open cells of the foam; and the radial pressure of a keratin surface of a user on the envelope lateral surface of the tip, in such a way as to deposit fluid cosmetic product on said keratin surface.
  • the envelope lateral surface of the tip is compressed between the keratin surface and the compression surface, in such a way as to expel the fluid cosmetic product from the open cells of the foam.
  • FIG. 1 is a perspective view of a conditioning and application device according to a first embodiment of the invention
  • FIG. 1 - figures 2 and 3 are cross-section views of the device of figure 1 ;
  • figure 4 is a perspective view of the device of figure 1 , in dissociated form
  • figure 5 is a detailed view, as a cross-section, of an element of the device of figure 1 ;
  • figure 6 diagrammatically shows a method for implementing the device of figure 1 ;
  • FIG. 7 is a side view of a conditioning and application device according to a second embodiment of the invention.
  • Figures 1 to 3 show a conditioning and application device 10 according to a first embodiment of the invention.
  • the device 10 in particular comprises a reservoir 12 and an applicator 14.
  • the device 10 also comprises a cap (not shown) able to cover the applicator 14 during a storage of the device 10.
  • the applicator 14 and the reservoir 12 are integral with one another and respectively extend along a first 16 and a second 17 axes.
  • the device 10 has the shape of a "pen" type, in which the reservoir 12 and the applicator 14 are aligned.
  • the first 16 and second 17 axes are confounded.
  • first axis 16 of the applicator and the second axis 17 of the reservoir form a non-zero angle.
  • the reservoir 12 comprises a tubular wall 18, arranged along the second axis 17 and closed at a first axial end by a bottom 20.
  • the tubular wall 18 forms a gripping element of the device 10.
  • the tubular wall 18 and the bottom 20 define an inner chamber 22 able to receive a volume of fluid cosmetic product 24.
  • the cosmetic product 24 is preferably a makeup or care product for keratin fibers or materials, in particular the eyebrows or the nails.
  • the device 10 is particular intended for the conditioning and application of a nail varnish.
  • the inner chamber 22 is open in the direction of the applicator 14.
  • the tubular wall 18 of the reservoir 12 can be deformed elastically by radial pressure in the direction of the second axis 17, in such a way as to allow for an expulsion of the fluid cosmetic product 24 towards the applicator 14.
  • the reservoir 12 is provided with a device for bringing the cosmetic product contained in the inner chamber 22 in the direction of the applicator 14, implementing for example a piston that has a face facing the bottom of the reservoir and a face in contact with the cosmetic product received in the inner chamber and of which the axial displacement inside the inner chamber 22 is actuated by the user.
  • a piston can in particular be displaced by the user, either directly through an axially mobile control cursor and coupled to the piston, or by rotation of a control ring integral with an endless screw to which is coupled the piston through an inner tapping.
  • the applicator 14 comprises a support 30 and a tip 32 assembled to one another, as can be seen in figures 1 to 3.
  • Figure 4 shows the support 30 and the tip 32 in dissociated form from one another.
  • the tip 32 is formed from an open-cell foam 34, or with an open porosity, of which a cross-section view is shown in figure 5.
  • the foam 34 in particular comprises a solid backbone 36 formed of segments 38 randomly oriented in the space, said segments delimiting cells 40.
  • the term "open-cell foam” means in particular that the cells 40 are in fluidic communication with each other. More precisely, in contact with the tip 32 with the fluid cosmetic product 24, the cells 40 of said tip are able to be impregnated with said product, in particular via capillarity.
  • the foam 34 is preferably chosen from cross-linked polymer foams, more preferably chosen from cross-linked thermoplastic material foams.
  • Said thermoplastic material is for example a polyurethane, a polyester, a polyether or a polyethylene.
  • the porosity of the foam 34 is greater than or equal to 70%.
  • the porosity is defined by the ratio between the volume occupied by the cells 40 and the total volume of the foam 34.
  • the foam 34 has a density preferably between 15 kg/m 3 and 60 kg/m 3 , more preferably between 20 kg/m 3 and 40 kg/m 3 , even more preferably equal to about 30 kg/m 3 .
  • the solid backbone 36 of the tip 32 comprises free strands 42 oriented outwards.
  • the ends 44 of said free strands define an envelope surface 46 of the tip 32.
  • the envelope surface 46 has by definition a variable shape, the tip 32 being deformable and compressible.
  • the tip 32 is shown at rest, i.e. not compressed.
  • the envelope surface 46 at rest comprises a lateral portion 50, referred to as envelope lateral surface.
  • Said envelope lateral surface 50 has a substantially cylindrical of revolution shape about the first axis 16.
  • the envelope surface 46 further comprises a proximal face 52, substantially planar and perpendicular to the first axis 16, as well as an opposite distal end 54, of curved shape.
  • the free strands 42 have a variable length 55, an average length of said strands being for example between 0.5 mm and 2 mm, a maximum length being for example of about 4 mm.
  • the foam 34 is also characterized by a number of cells 40 per unit of length, said number being expressed in PPI for pores per inch, making it possible to characterize the polymer foam.
  • the number of cells 40 per unit of length corresponds to the number of cells 40 that can be counted over a length of 1 inch (2.54 cm) measured along the envelope surface 46 at rest, over a section of the tip 32.
  • the foam 34 has a number of cells per unit of length that is preferably between 10 PPI and 80 PPI, more preferably between 20 PPI and 50 PPI, even more preferably equal to about 30 PPI.
  • the foam 34 is a cross-linked polyurethane foam, with a density of about 30 kg/m 3 ; the number of cells 40 per unit of length is about 30 PPI.
  • the support 30 is integral with the reservoir 12 and extends along the first axis 16. In the embodiment of figures 1 to 3, the support 30 is aligned with said reservoir 12 according to the first 16 and second 17 confounded axes.
  • the support 30 and the reservoir 12 are preferably formed from a part, for example made of plastic material of the polymer type, such as polyolefins (PP, PE, etc.) or styrenes (ABS, SAN, etc.).
  • the support 30 comprises an inner lateral surface 60, arranged in contact with the envelope lateral surface 50 of the tip 32.
  • the inner lateral surface 60 has a substantially tubular shape extending along the first axis 16; the tip 32 is inserted into said inner lateral surface 60, the proximal face 52 being arranged facing the inner chamber 22 of the reservoir 12. More precisely, in the embodiments shown, the inner lateral surface 60 has the shape of a cylinder of revolution, as shall be detailed hereinafter.
  • An axial end of the support 30, opposite the reservoir 12, is formed by a free edge 62 of the inner lateral surface 60.
  • the free edge 62 defines a first plane 64, referred to as proximal plane, and a second plane 66, referred to as distal plane, such that the free edge 62 is inscribed between said proximal 64 and distal 66 planes and substantially oriented towards the distal plane 66.
  • the proximal 64 and distal 66 planes are separated by a non zero length 68 along the first axis 16.
  • Figure 3 shows a transversal cross-section Ill-Ill of the device 10, considered between the proximal 64 and distal 66 planes.
  • the free edge 62 is configured so that, over such a transversal section of the tip 32, a portion of the envelope lateral surface 50 is maintained by the support 30, in particular in a radial direction, and another portion of said envelope lateral surface 50 is exposed and allows for application of the fluid cosmetic product 24.
  • each transversal section of the envelope lateral surface 50 of the tip 32 comprises a first 70 and a second 72 angular portions, delimited by the free edge 62 of the inner lateral surface 60.
  • Said inner lateral surface 60 of the support 30 is arranged in a first angular portion 70 and away from the second angular second portion 72.
  • said second angular portion 72 of the envelope lateral surface of the tip is able to come into contact with a portion of the body of the user.
  • the second angular portion 72 decreases continuously along an axial progression from the distal plane 66 to the proximal plane 64.
  • the free edge 62 has a curved shape extending in three dimensions.
  • said curved shape is configured to substantially correspond to the contour 82 of a nail 80 (figure 6) applied against the free edge 62, as shall be detailed hereinafter.
  • the free edge 62 is substantially arranged in a plane that is oblique with respect to the first axis 16.
  • the free edge 162 has a staircase shape, comprising two portions in an arc of circle 164, 166 respectively located in the proximal and distal planes, said two portions being connected by ridges 167 parallel to the first axis 16.
  • the support 30 comprises a proximal portion 74 and a distal portion 76, aligned along the first axis 16 and delimited by the proximal plane 64.
  • the distal portion 76 is located on the side of the free edge 62 and the proximal portion 74 is in contact with the reservoir 12.
  • the inner lateral surface 60 is closed on itself about the first axis 16. Said proximal portion thus completely surrounds the tip 32, in particular in such a way as to prevent leakage of the cosmetic product 24. More preferably, a diameter of the inner lateral surface 60 is slightly less than an envelope lateral surface 50, in such a way as to slightly compress the foam 34 in order assemble the tip 32 and the support 30.
  • the tip 32 is integral with the support 30 by additional means, such as an adhesive.
  • the distal portion 76 of the support 30 makes it possible to rigidity the tip 32 over the length 68, while still leaving accessible the corresponding height of the envelope lateral surface 50 for an application of the fluid cosmetic product 24.
  • Such a configuration makes it possible to control the surface of the tip 32 intended for the application of said cosmetic product, according to a height 68 chosen for the free edge 62.
  • the inner lateral surface 60 forms a compression surface, able to compress the tip 32 under the effect of a radial pressure exerted on said tip.
  • radial pressure means a pressure exerted perpendicularly to the first axis 16 and oriented towards said axis.
  • the free edge 62 comprises an plane of symmetry, corresponding to the cutting plane ll-ll of figure 2. It is considered an orthonormal base (X, Y, Z), Z being parallel to the first axis 16 and said cutting plane ll-ll being a plane (X, Z).
  • the free edge 62 of the device 10 is particularly configured to allow for a compression of the tip 32 between the distal portion 76 of the support 30 and a portion of the body of a user, in particular a nail 80 exerting a pressure along X, as shown in figure 6.
  • the length 68 between the proximal 64 and distal 66 planes substantially corresponds to the length of a nail.
  • Said length 68 is for example between 0.5 cm and 2 cm and is preferably about 1 cm.
  • the inner lateral surface 60 of the support 30 has a concave shape.
  • the inner lateral surface comprises at least one substantially planar portion, in particular able to be used as a compression surface.
  • the envelope surface 46 of the tip is for example configured with the planar lateral zone complementary with said planar portion of the support.
  • the reservoir 12 and the support 30 of the applicator 14 are formed from one part, for example by molding a suitable plastic material.
  • the foam 34 is machined in order to form the tip 32.
  • the machining is in particular carried out by punch, laser, milling or water jet.
  • the machining of the foam 34 makes it possible to create the free strands 42 on the envelope surface 46.
  • the reservoir 12 is filled with the fluid cosmetic product 24, then the tip 32 is inserted into the support 30 in order to form the applicator 14.
  • the proximal face 52 of the tip 32 is firstly put into contact with the fluid cosmetic product 24, for example by turning upwards the bottom 20 of the reservoir 12, or by pressing the lateral wall 18 between two fingers.
  • the fluid cosmetic product 24 is diffused into the open cells 40 of the tip, to the distal end 54 and to the envelope lateral surface 50 located in the vicinity of the free edge 62 of the support 30.
  • the fluid cosmetic product 24 is thus expelled outside the cells 40 of the foam 34 and is deposited on the nail.
  • the free edge 62 advantageously is thrust against the contour 82 of the nail 80, thus preventing the fluid cosmetic product 24 from overflowing onto the skin of the finger around the nail.
  • Each free strand 42 of the tip 32 is furthermore able to form an individual element for the application of the cosmetic product 24, the adjacent cells 40 forming reserves of cosmetic product 24 in the immediate vicinity of said free strands.
  • the ends 44 of the free ends deposit separate droplets of the fluid cosmetic product 24.
  • the device 10 thus makes it possible to obtain various makeup effects, such as a mottled appearance or a continuous layer, by varying the pressure exerted on the tip 32.
  • the free strands 42 of the tip 32 form combing elements of the keratin fibers such as the eyelashes, eyebrows and/or hair fibers.
  • a portion of the free edge 62 of the support 30, located close to the distal plane 66, is furthermore configured to serve as a nail care tool, in particular to push back the cuticles before applying the fluid cosmetic product 24.
  • the device 10 therefore offers several care and/or makeup functions of nail.

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  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Coating Apparatus (AREA)
  • Cosmetics (AREA)

Abstract

L'invention se rapporte à un dispositif de conditionnement et d'application (10) pour un produit cosmétique fluide, un applicateur dudit dispositif comprenant une pointe en mousse définissant une surface latérale d'enveloppe (50) fermée sur elle-même autour d'un axe. L'applicateur comprend en outre un support comprenant une surface latérale interne (60) agencée en contact avec la surface latérale d'enveloppe de la pointe ; une extrémité axiale dudit support étant formée par un bord libre (62) de la surface latérale interne. Le support est configuré de telle manière que, sur une longueur continue et non nulle le long du premier axe, chaque section transversale de la surface latérale d'enveloppe de la pointe comprend une première (70) et une seconde (72) parties angulaires non nulles, délimitées par le bord libre, ladite surface latérale interne étant agencée dans la première partie angulaire (70) et à l'opposé de la seconde partie angulaire.
PCT/EP2018/084209 2017-12-12 2018-12-10 Dispositif de conditionnement et d'application pour un produit cosmétique fluide Ceased WO2019115468A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1761978A FR3074656B1 (fr) 2017-12-12 2017-12-12 Dispositif de conditionnement et d'application d'un produit cosmetique fluide
FR1761978 2017-12-12

Publications (1)

Publication Number Publication Date
WO2019115468A1 true WO2019115468A1 (fr) 2019-06-20

Family

ID=61599359

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PCT/EP2018/084209 Ceased WO2019115468A1 (fr) 2017-12-12 2018-12-10 Dispositif de conditionnement et d'application pour un produit cosmétique fluide

Country Status (2)

Country Link
FR (1) FR3074656B1 (fr)
WO (1) WO2019115468A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2399463A (en) * 1943-12-02 1946-04-30 Frederick W Bryant Holder and applicator for cosmetic liquids and the like
US2517283A (en) * 1946-07-16 1950-08-01 Frederick W Bryant Liquid applicator
US3148401A (en) * 1963-03-18 1964-09-15 Truly Magic Products Inc Liquid applicator attached to container
DE8613966U1 (de) * 1986-05-23 1986-11-20 Schwan-Stabilo Schwanhäußer GmbH & Co, 8500 Nürnberg Vorrichtung zur Nagelhautentfernung
FR2761959A1 (fr) 1997-04-15 1998-10-16 Oreal Ensemble de conditionnement et d'application d'un produit fluide

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2399463A (en) * 1943-12-02 1946-04-30 Frederick W Bryant Holder and applicator for cosmetic liquids and the like
US2517283A (en) * 1946-07-16 1950-08-01 Frederick W Bryant Liquid applicator
US3148401A (en) * 1963-03-18 1964-09-15 Truly Magic Products Inc Liquid applicator attached to container
DE8613966U1 (de) * 1986-05-23 1986-11-20 Schwan-Stabilo Schwanhäußer GmbH & Co, 8500 Nürnberg Vorrichtung zur Nagelhautentfernung
FR2761959A1 (fr) 1997-04-15 1998-10-16 Oreal Ensemble de conditionnement et d'application d'un produit fluide

Also Published As

Publication number Publication date
FR3074656B1 (fr) 2021-04-23
FR3074656A1 (fr) 2019-06-14

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