FR3099349A1 - Device for packaging and applying a cosmetic composition - Google Patents

Abstract

Device for packaging and applying a cosmetic composition, Device for packaging and applying (1) of a cosmetic composition (P), comprising: a container (20) defining a housing (22), a reservoir (10 ) comprising a porous material disposed in the housing (22), impregnated with the cosmetic composition, the porous material (5) preferably being monolithic, and having: a lower face (11) oriented towards the bottom of the housing, bearing on this the latter at its periphery and in at least one central location, preferably being flat, an upper face (12) opposite the lower face, said upper face comprising at least one outwardly convex zone (19a, 19b), and a applicator (30) for removing the cosmetic composition from the reservoir and applying it to human keratin materials, such as the skin or the lips. Figure for the abstract: Fig. 8

Description

Device for packaging and applying a cosmetic composition

The present invention relates to devices for packaging and applying a cosmetic composition, in particular for make-up and/or care, and more particularly those comprising a case in which the composition is contained in the form of an impregnation of a porous material. .

“Cosmetic composition” means any composition as defined in Regulation EC No. 1223/2009 of the European Parliament and of the Council dated November 30, 2009, relating to cosmetic products.

Document KR20150017963A describes a reservoir for a cosmetic composition having a curved application face. This tank is composed of two layers assembled together at their respective contours, for example by welding. Such a tank requires the assembly of the two sheets in a marked manner, making its manufacture complicated.

It was proposed in application FR 3072546 A1 to produce the porous material with a curved upper face, adapted to a specific shape of applicator.

Today, devices for packaging cosmetic compositions are found on the market, which comprise a housing defining a housing within which is received a porous material impregnated with the cosmetic composition, which is removed with an applicator such as a sponge.

There is a need to continue to improve the packaging devices comprising a housing in which the composition is contained in the form of impregnation of a porous material, in particular to improve the loading of the applicator, in particular when the latter has an application surface adapted to the relief of a specific area of the face.

The invention aims to meet this need and has as its object, according to a first of its aspects, a device for packaging and applying a cosmetic composition, comprising:

• A container defining a housing,
• a reservoir comprising a porous material disposed in the housing, impregnated with the cosmetic composition, the porous material preferably being monolithic, and having:
  • a lower face, oriented towards the bottom of the housing, resting on the latter at its periphery and in at least one central location, being preferably flat,
  • an upper face opposite the lower face, said upper face comprising at least one outwardly convex zone,
• an applicator for withdrawing the cosmetic composition from the reservoir and applying it to human keratin materials, such as the skin or the lips.

The fact that the reservoir has an upper face as defined above makes it possible to load the application surface of the applicator in a relatively uniform manner with the cosmetic composition.

This is particularly advantageous when the applicator is rigid or not very deformable, and has an application surface adapted to the relief of a specific area of the face, for example the lips or the eyelids. The geometric correspondence between the surface of the reservoir and that of the applicator makes it possible to obtain a relatively uniform deposit of composition in the various hollows and bumps of the applicator when it is brought into contact with the reservoir.

The fact that the reservoir rests on the bottom of the housing not only at the periphery but also in a central zone, makes it possible to distribute on the reservoir in a more homogeneous manner the force in reaction to the thrust exerted by the applicator on the tank, and thus to have a better contact pressure between the tank and the applicator.

Thus, on application, the composition can be applied relatively evenly via the application surface, with a lower risk of excess or lack of composition in places.

Preferably, the porous material has no interior cavity, being solid.

Outward convex area

Preferably, the or each outwardly convex zone is rounded in shape, and the reservoir forms one or more bosses.

Each outwardly convex zone can thus present, in side view, a profile in the shape of an arc of a circle.

The or each outwardly convex zone may have a longitudinal and/or transverse section in the form of a portion of an ellipse. The outline of the longitudinal and/or transverse sections may have a variable radius of curvature, in particular greater at the top of the upper face.

The or each outwardly convex zone may have an outer surface in the form of a spherical cap or a quadric of revolution, in particular an ellipsoid.

In some cases, the reservoir can be made with a shape specific to a given applicator. For example, for an applicator intended for application to the lips, the or each convex zone has a generally elongated shape. In this particular case, the or each outwardly convex zone may be elongated, for example be in the form of an ellipsoidal cap.

The or each outwardly convex zone may have a thickness, relative to the edge of the reservoir, of between 1 and 50 mm, better still between 5 and 40 mm, even better still between 10 and 30 mm.

The or each outwardly convex zone may have a large longitudinal dimension comprised between 10 and 100 mm, better still between 15 and 80, even better still between 20 and 60 mm.

The or each convex zone may have a large transverse dimension of between 5 and 60mm, even better between 10 and 50mm, even better between 15 and 40mm.

Advantageously, the upper surface of the reservoir comprises at least two outwardly convex zones, defining between them a hollow zone.

The apex of the or each outwardly convex area may be located in a median plane of the reservoir.

The reservoir may have at least two outwardly convex zones of identical shape, as described above.

For example, for an applicator intended for application to the lips, the reservoir may have two convex zones corresponding substantially to the shape of the lips. These two zones can both be elongated around parallel longitudinal axes. Each convex zone defines an outward boss, which is rounded both in a longitudinal plane and in a transverse plane, perpendicular to it.

Preferably, the vertices of the convex zones are located in the same median plane of the reservoir.

The vertices of the convex zones can be spaced apart by a distance, measured perpendicularly to the longitudinal axis of the convex zones, of between 10 and 50 mm, better still between 15 and 40 mm, for example of the order of 30 mm.

The outwardly convex zone(s) may occupy at least 30% of the upper surface of the tank, better still at least 50%, even better still at least 70%.

Hollow area

The aforementioned hollow zone has for example a substantially V-shaped profile, when observed from the side along the longitudinal axis of the convex zones.

The hollow zone may have a maximum depth of between 1 and 60mm, better still between 5 and 40mm, even better between 5 and 30mm .

The bottom of the hollow area may have a slightly outward convex profile when viewed perpendicular to the longitudinal axis of the outward convex areas.

The hollow zone can define a groove formed between two bosses, each of elongated shape, each constituting a convex zone, these two bosses forming a projection on a disc-shaped base, preferably having a flat lower face and an upper face defining a border of substantially constant thickness. The bottom of the groove can be located at a distance from the lower face that is always greater than the thickness, at the periphery, of the base.

The hollow zone can extend along a longitudinal axis included in a median plane of the reservoir, perpendicular to the median plane comprising the vertices of the convex zones.

Reservoir

The tank can be symmetrical with respect to a plane of symmetry F and be non-symmetrical with respect to a plane Q perpendicular to the plane of symmetry F. The plane F can be a transverse plane of the tank.

The top of the tank can be located below or below the edge of the housing.

The reservoir may consist exclusively of the porous material. However, it may prove advantageous to cover the porous material at least partially, in particular on its upper face, with at least one layer of another material, for example to improve the homogeneity of the composition on the upper face of the reservoir. or more generally adjust the permeability to the composition of the reservoir according to the location on its upper face.

The reservoir may thus comprise, for example, a net or a membrane at the surface of the porous material, through which the composition is removed, in particular a net made of polyolefin, in particular polyethylene.

In an exemplary implementation of the invention, more particularly suitable for the case where the reservoir has at least two convex zones. The reservoir comprises an added part modifying the shape of the upper face of the reservoir, in particular bringing the convex zones closer together.

The added piece can make it possible to deform the upper face, for example to tighten the porous material, and bring the convex zones closer together. A shape closer to that of the lips can then be obtained.

The added piece can also help maintain the reservoir within the housing.

The added piece may have a bearing face on the upper face of the planar porous material.

The reservoir may include a peripheral part surrounding a central part. This peripheral part may not be used to load the applicator, and its role is, for example, to help hold the reservoir in the housing and/or to reduce the risk of the composition dripping outside the housing, in particular when the user squeezes the reservoir with the applicator.

The central part may have on its upper face the above-mentioned outwardly convex zone(s).

Peripheral part

The peripheral part of the upper face of the reservoir may or may not be flat. A flat shape is advantageous, in the sense that it can make it possible to provide a gripping surface for the porous material in the housing, using for example a holding piece resting on this flat surface.

The retaining part may correspond to the added part defined above.

Thus, the reservoir may have, in side view, in particular in a direction perpendicular to the aforementioned elongated zones, an external profile having at least one point of inflection located between the peripheral zone and the central part.

When the peripheral part of the tank is non-planar, it can be inclined downwards and towards the outside of the tank.

Material porous

The porous cellular material of the reservoir is preferably formed at least partially by an elastically deformable and compressible material.

The bottom of the housing is preferably directly in contact with the porous material.

It can be an open cell foam, in particular an injected foam, for example a polyamide foam (Nylon), a polyurethane foam (PU), a polyacrylonitrile foam (PAN), a polyethylene foam (PE ), ethylene vinyl acetate (EVA) foam or poly(vinyl chloride) (PVC) foam.

The porous material may have a shape obtained from molding, which simplifies the manufacture of the device, from thermoforming, or from machining. The porous material can be in the form of a block with an axisymmetric or rotationally symmetric shape, or without any symmetry.

The underside of the tank, and in particular that of the porous material, may have a lower absorption capacity on its periphery compared to its center. The cosmetic composition then preferentially flows through the center rather than through the periphery when the user presses on the reservoir and compresses the porous material. This makes it possible to favor the flow towards the center of the tank, in particular towards the convex zones towards the outside. It is thus possible to improve the loading of the applicator when the latter comes into contact with the reservoir.

The underside may have non-uniform porosity; the periphery of the underside may be less porous than the center of the underside.

The porous material in the reservoir may comprise a foam of polydisperse porosity, the dimension of the pores of which on the periphery of the lower face is sufficiently small to prevent the passage of the cosmetic composition through a peripheral zone of the porous material. As a variant, the periphery of the lower face is covered at least partially by a material, in particular a textile, of lower porosity than that of the porous material, locally reducing the absorption capacity of the porous material.

The porous material may be free in the housing. As a variant, the porous material is fixed to a wall of the housing, for example by gluing, welding, or using a fixing by an added element, or by clamping or pinching.

Similarly, the reservoir can be free in the housing, or held therein by an added element.

When the reservoir comprises a net or a membrane covering the porous material, this net or membrane can contribute to retaining the porous material in the housing.

VS cosmetic composition

The cosmetic composition can be chosen, inter alia, from a foundation, preferably a liquid foundation, a concealer, a concealer, a cream, a composition for the lips, an eye shadow or a care product .

The composition is preferably fluid.

The viscosity of the composition is for example between 40 and 90 UD (Deviation Unit), preferably between 55 and 80 UD, ie between 366 and 569 cP (0.37 and 0.57 Pa.s).

This viscosity is measured at 25°C, with a Rhéomat 180 (Lamy) equipped with an MS–R2 spindle, selected according to a low to medium viscosity of the product, which rotates at a speed of 200 revolutions per minute. The measurement is taken after a rotation of 10 minutes. The viscosity measurements are carried out no later than one week after manufacture.

Such a viscosity makes it possible to improve the setting of the composition on the upper face of the reservoir and to prevent the composition from flowing during use.

The cosmetic composition can be colored or not, perfumed or not.

AT applicator

The cosmetic composition is taken from the upper face of the reservoir using the applicator. This applicator may comprise or consist of an applicator member such as a foam, a brush, a sponge, a nonwoven, a flocked tip.

For example, the applicator is a puff. This comprises for example a flocked polyurethane foam, with an applicator face having for example two different surface states, with for example a flocked part and an unflocked part.

The applicator can also be adapted to the relief of a specific area of the face, for example the lips or the eyelid. The applicator can thus have a concave application surface coming into contact with the reservoir. An example of such an applicator is described in application FR 3072546 A1.

The applicator may have a bi-concave shape, with two parallel elongated concavities on the application surface.

The applicator may have an application surface of substantially complementary shape, at rest, to the upper face of the reservoir.

The applicator can be charged by being pressed against the top face of the tank. Then, the applicator is pressed against the area to be treated, in particular to be made up. When the applicator has an ergonomic shape, the transfer of the composition present on the application surface to the area to be treated can be carried out without any movement other than that of pressing the applicator loaded with composition onto said area, then remove with a reverse motion. In other cases, the applicator is moved over the area to be treated to deposit the composition and/or blur a deposit already made.

Container

The device may include a closing lid, which covers the reservoir in the absence of withdrawal of the composition.

The cover can be fixed on the body of the container by friction, screwing, bayonet locking or snap-fastening. As a variant, the lid is connected in a guided manner in movement relative to the body of the container, for example in an articulated manner or by a sliding connection.

The device may comprise a mirror, in particular housed in the lid.

Preferably, the bottom of the housing is flat, perpendicular to the axis of the housing. The bottom of the housing can alternatively be of paraboloidal, ellipsoidal or spherical shape.

The container may comprise a rigid body, and the latter may be made by molding a thermoplastic material.

The housing can be formed by a removable refill, which can be attached to the body of a housing.

A further subject of the invention is a cosmetic treatment process, in particular for make-up, comprising the step consisting in taking the composition indirectly or directly from the porous material surface of a device according to the invention, and in applying it to the human keratin materials, in particular on the skin or the lips.

The application can be done by transfer, by pressing the applicator on the surface to be made up, as mentioned above.

A further subject of the invention, independently or in combination with the foregoing, is a device for packaging and applying a cosmetic composition, comprising:

• A container defining a housing,
• a tank comprising:
  • a porous material disposed in the housing, impregnated with the cosmetic composition, having:
    • a lower face, oriented towards the bottom of the housing, in particular resting on the latter at its periphery and in at least one central location, being preferably flat,
    • an upper face opposite the lower face, said upper face comprising at least two outwardly convex zones,
  • an added part modifying the shape of the upper face of the tank, in particular bringing the convex zones closer together, and
• preferably, an applicator for withdrawing the cosmetic composition from the reservoir and applying it to human keratin materials, such as the skin or the lips.

Such a device may have all or some of the characteristics of the device that is the subject of the first aspect of the invention, as defined above.

The invention may be better understood on reading the detailed description which follows, non-limiting examples of implementation thereof, and on examining the appended drawing, in which:

Figure 1 is a schematic partial cross-section of a packaging and application device, shown without the applicator,

FIG. 2 represents in isolation, in perspective, an example of a tank according to the invention,

Figure 3 shows a bottom view of the tank of Figure 2,

Figure 4 is a front view of the porous material of Figures 2 and 3,

FIG. 5 represents in section the porous material of FIGS. 2 to 4,

Figure 6 is a sectional view in a plane perpendicular to that of Figure 5,

FIG. 7 represents an example of an applicator in isolation,

Figure 8 is a perspective view of the packaging and application device, shown without the applicator,

FIG. 9 represents in isolation, in perspective view, an example of a tank variant,

Figure 10 is a cross section of the tank of Figure 8,

FIG. 11 is a schematic partial cross-section of an example of a variant of the packaging and application device, shown without the applicator,

Figure 12 is a cross section of a tank variant,

Figure 13 is a cross section of another tank variant according to the invention, and

Figure 14 is a schematic partial cross-section of the packaging and application device of Figure 8.

detailed description

There is shown in Figures 1 to 8 a packaging and application device 1 according to the invention, comprising a container 20 defining a housing 22 for receiving a cosmetic composition P.

The container 20 is provided with a lid 26 which can be fixed on the container 20 by screwing, as shown in Figure 8.

Alternatively, the cover is fixed to the container 20 by any other suitable means, for example by snap-fastening, friction or pivoting using a hinge.

The device 1 comprises an applicator 30, represented in isolation in FIG. 7, for collecting the cosmetic composition P and applying it to human keratin materials, such as the skin or the lips. This applicator is for example ergonomic, and adapted to the reliefs of a specific zone of the face, in particular the lips, as illustrated in FIG. 7. The applicator can thus have an application surface having at least one concave zone in the direction of the reservoir. Preferably, the applicator comprises two concave zones 33 and 35 in the direction of the reservoir, these possibly corresponding to the lips.

A reservoir 10 comprising a porous material 5, alveolar, is placed in the housing 22, and impregnated with the cosmetic composition P.

The porous material 5 is preferably an injected foam, for example a polyurethane (PU) foam or a polyethylene (PE) foam.

Reservoir 10 may have a volume (in the unimpregnated state) of between 10 and 200 cm ³ , better still between 20 and 150 cm ³ , even better still between 30 and 100 cm ³ .

The reservoir 10 may have an outline, in top view, of substantially circular shape, with a diameter D of between 1 and 200mm, better still between 1 and 150mm, even better between 1 and 100mm, for example 70mm.

The reservoir 10 may have a maximum height H _T of between 10 and 60mm, better still between 15 and 50mm, even better between 20 and 40mm, for example of the order of 30mm.

Reservoir 10 has a flat underside 12, as shown in Figure 4.

The reservoir 10 may comprise a peripheral part 13 surrounding a central part 15. The latter has a maximum thickness H_B greater than the maximum thickness H_I of the peripheral part 13, the thickness of the peripheral part 13 being calculated from a point located 1 mm from its free edge 17.

The central part 15 may have on its upper face two outwardly convex zones 19a and 19b. In the example illustrated, these convex zones 19a and 19b are identical, their vertices M1 and M2 being spaced apart by a distance Δ, measured perpendicular to the longitudinal axis (X) of the convex zones (19a, 19b), comprised between 10 and 50mm, better still between 15 and 40mm, for example of the order of 30mm, as illustrated in FIG. 5. The central part 15 can have, in top view, a shape corresponding to a specific zone of the face, in particular the lips , as shown in Figure 8.

In the example shown, the outwardly convex areas 19a and 19b each have a rounded shape. These can each have a profile in the shape of an arc of a circle or an ellipse, as shown in figure 2.

The convex zones 19a and 19b can each be substantially in the shape of an ellipsoidal cap, as illustrated in FIGS. 2 and 4.

The convex zones 19a and 19b can each have a maximum thickness H _B , relative to the edge of the reservoir 10, of between 1 and 50mm, better still between 5 and 40 mm, even better still between 10 and 30mm.

The convex zones 19a and 19b can each have a greater longitudinal dimension L _B , at their base, of between 10 and 100mm, better still between 15 and 80mm, even better between 20 and 60mm, for example approximately 50mm .

The convex zones 19a and 19b can each have a greater transverse dimension d _B , at their base, of between 5 and 60mm, even better between 10 and 50mm, even better between 15 and 40mm, for example of the order of 20mm.

Furthermore, as can be seen in FIGS. 2 and 4, the contour of the convex zones 19a and 19b at their base can be substantially in the shape of an ellipse.

As a variant, the convex zones 19a and 19b have at their base an outline of another shape as illustrated in FIGS. 9 and 10.

The convex zones 19a and 19b define between them a hollow zone or groove 18, as illustrated in figures 1, 2, 4 and 5.

The hollow zone 18 may be concave in shape towards the outside, with a V-shaped profile, when observed from the side along the longitudinal axis X of the convex zones, as illustrated in FIG. 5.

The hollow zone 18 may have a depth δ _c , between the vertices M1 and M2 of the two convex zones 19a and 19b, of between 1 and 60mm, better still between 5 and 40mm, even better between 5 and 30mm, for example of the order of 20mm, as shown in figure 5.

The peripheral part 13 can be of contour, in top view, of generally circular shape, as illustrated in FIG. 100mm, for example of the order of 70mm.

The upper face of the peripheral part 13 of the tank 10 can be flat and substantially parallel to the lower face 12 of the tank, forming a border of substantially constant thickness.

The tank 10 may have, in side view, a profile having at least one point of inflection I located between the edge of the tank 13 and the central part 15.

This can make it possible to provide a gripping surface for the porous material in the housing, using for example an added piece 60 resting on this flat surface, as illustrated in FIGS. 8 and 14. The added piece 60 can make it possible to deform the upper face 11, for example to tighten the porous material 5, and bring the convex zones 19a and 19b closer together. A shape closer to that of the lips can then be obtained.

The peripheral part may have a thickness H_{I ,} measured at its edge, between 1 and 60mm, better between 2 and 40 mm, even better between 5 and 20mm, for example of the order of 10mm.

As a variant, the peripheral part 13 of the tank 10 is non-planar, in particular inclined downwards and outwards, as illustrated in FIGS. 9 and 10.

The periphery 16 of the lower face 12 may have a lower absorption capacity than the rest of said lower face 12. The latter may, in this case, have non-uniform porosity, the periphery 16 of the lower face 12 being less porous than the rest of the underside 12.

In the example illustrated in Figure 1, the tops M1 and M2 of the tank 10 are located above the upper edge 25 of the side wall of the housing. Alternatively, vertices M1 and M2 are located below, as shown in Figure 11.

The porous material in the reservoir may be a polydisperse foam whose pore size on the periphery of the internal face is small enough to prevent the cosmetic composition from passing over the periphery of the porous material.

As a variant, the periphery 16 of the lower face 12 is covered at least partially by a material 50, in particular a textile, of lower porosity than that of the porous material, locally reducing the absorption capacity of the porous material 5, as illustrated in Figure 13.

In the example of FIG. 1, the reservoir consists exclusively of the porous material 5. As a variant, the reservoir comprises a net or a membrane 40 at the surface of the porous material 5, through which the composition is taken, in particular a net of polyolefin, in particular of polyethylene.

The invention is not limited to the examples which have just been given. For example, the tank can be made with a different general shape.

Claims (18)

Device for packaging and applying (1) a cosmetic composition (P), comprising:

• a container (20) defining a housing (22),
• a reservoir (10) comprising a porous material disposed in the housing (22), impregnated with the cosmetic composition, the porous material (5) preferably being monolithic, and having:
  • a lower face (11) oriented towards the bottom of the housing, resting on the latter at its periphery and in at least one central location, being preferably flat,
  • an upper face (12) opposite the lower face, said upper face having at least one outwardly convex area (19a, 19b), and
• an applicator (30) for withdrawing the cosmetic composition from the reservoir and applying it to human keratin materials, such as the skin or the lips.

Device according to claim 1, the reservoir (10) having no interior cavity. Device according to Claim 1 or 2, the outwardly convex zone (19a, 19b) being of rounded shape, in particular having a profile in the shape of an arc of a circle. Device according to one of the preceding claims, the outwardly convex zone (19a, 19b) having an outer surface in the form of an elongate, in particular in the form of an ellipsoidal cap. Device according to any one of the preceding claims, the reservoir (10) comprising at least two outwardly convex zones (19a, 19b), in particular of identical shape, defining between them a hollow zone (18). Device according to the preceding claim, the hollow zone (18) being of concave shape towards the outside, in particular having a substantially V-shaped profile, when observed from the side along the longitudinal axis (X) of the convex zones (19a, 19b) . Device according to one of Claims 5 or 6, the vertices of the convex zones (19a, 19b) being spaced apart by a distance (Δ), measured perpendicularly to the longitudinal axis (X) of the convex zones (19a, 19b), between 10 and 50mm, better still between 15 and 40mm, for example of the order of 30mm. Device according to any one of the preceding claims, the outwardly convex zone(s) (19a, 19b) extending over at least 30% of the upper face (11) better still at least 50% even better minus 70%. Device according to any one of the preceding claims, the reservoir (10) having an outline, in top view, of generally circular shape. Device according to any one of the preceding claims, the reservoir (10) comprising a peripheral part (13) surrounding a central part (15), the central part (15), preferably presenting the outwardly convex zone(s) ( 19a, 19b). Device according to the preceding claim, the peripheral part (13) being planar, the reservoir (10) having, in side view, in particular in a direction perpendicular to the aforementioned elongated zones, a profile having at least one inflection point (I) located between the edge (17) of the tank (10) and the central part (15). Device according to claim 11, the peripheral part (13) of the reservoir (10) being non-planar, the latter being inclined downwards and outwards from the reservoir (10). Device according to any one of the preceding claims, the porous material (5) being formed at least partially by an elastically deformable material, in particular an injected foam, in particular a PE (polyethylene) foam. Device according to any one of the preceding claims, the porous material (5) being elastically compressible. Device according to any one of the preceding claims, comprising a net or a membrane (40) at the surface of the porous material, through which the composition is removed, in particular a net or a membrane made of polyolefin, in particular polyethylene. Device according to any one of the preceding claims, the reservoir (10) having a top (M ₁ , M ₂ ) located above or below the upper edge (25) of the side wall of the housing (22). Device according to any one of the preceding claims, comprising an added piece (60) modifying the shape of the upper face (11) of the tank (10), in particular bringing the convex zones (19a, 19b) closer together. Cosmetic treatment process, comprising the step consisting in taking the composition from the surface of the reservoir (10) of a device (1) according to any one of the preceding claims, and applying it to human keratin materials, in particular on the skin or lips.