FR3047881A1 - DEVICE COMPRISING A SIEVE WITH RIGID LIP - Google Patents

Abstract

The invention relates to a device (1) for X-axis packaging and application, comprising: - a container (10) containing a product (P) to be applied and delimiting an inner surface (15), - a sieve (30) ) movable along the X axis having a perforated portion (31) and a peripheral portion (32), the perforated portion (31) and the peripheral portion (32) comprising respective materials of different hardnesses.

Description

Device comprising a sieve with rigid lips

The present invention relates to a device for packaging and dispensing a cosmetic product. The invention relates more particularly to a device comprising a container containing the product to be applied and a sieve through which the product contained in the container can be discharged.

Many devices of this type are known, with sieves having dispensing orifices through which the outlet of the product is obtained, of various shapes and arrangements. The sieve may or may not follow, that is to say, sink or not in the container as and when the product distribution.

The application CN202664613 discloses a device comprising a screen having a central distribution port of hexagonal section and a plurality of dispensing orifices arranged around this central orifice, each of oblong shape and large axis oriented substantially radially.

The publication JP2003-79425 discloses a device whose sieve is constituted by a grid fixed on a support frame provided with tabs which can flex against the edge of the housing of the container containing the product, when the sieve is sinking into the container as and as you dump it.

Patent application PCT / IB2015 / 056898 filed by the Applicant and not yet published relates to a device whose sieve has distribution ports of different sections and peripheral sealing lips and scraping. This document provides that the perforated portion of the screen may be of flexible material.

There is a need to further improve the packaging and application devices comprising a sieve, in particular to obtain new makeup effects to the application and a new sensoriality when taking the product.

There is still a need to further improve the packaging devices comprising a sieve, in particular to improve the scraping of the inner surface of the container and to facilitate its movement.

There is still a need to further improve the packaging devices comprising a sieve, in particular to prevent product leakage between the container and the sieve.

There is a need for further refinement of the sieving devices to simplify manufacture and improve application of the product and / or loading of an applicator. The invention achieves this objective by means of an X-axis device for packaging and applying a cosmetic product, comprising: a container containing a product to be applied and delimiting an inner surface; a sieve movable along the axis; X having a perforated portion comprising orifices through which the outlet of the product and a peripheral portion bearing against the inner surface of the container, the screen defining with the container a storage chamber of variable volume, the openwork portion and the peripheral portion comprise respective materials of different hardnesses.

The presence within the sieve of two parts made of materials of different hardness improves the scraping of the inner surface of the container by the periphery of the sieve, while leaving the perforated part the possibility of deforming to fit the formula , to a possible applicator or to the fingers of the user.

As the peripheral portion is of a hard material, the risks of formula leakage at the junction between the container and the sieve are clearly limited. The hygiene of the device is improved and the device is safer. It is sealingly applied to the inner surface of the container.

In addition, the displacement of the screen along the X axis is favored because the peripheral portion of more rigid material slides on the inner surface of the container. Thus, the sieve plays better its role of piston, and this on all its surface. If the perforated portion has particular patterns, they can be reproduced faithfully and without deformation on a transfer surface, such as that of a finger or an applicator, regardless of the position of the sieve relative to the axis X.

DEFINITION OF THE INVENTION The invention also relates to a cosmetic process, comprising the steps of: - providing a device according to any one of the preceding claims, - loading into product an application member by exerting a pressure on the sieve and possibly, by causing a displacement of the sieve to reduce the volume of the storage chamber and make the product exit through the orifices, - apply the product on keratin materials.

The cosmetic process according to the invention is simple to implement and reliable. It can be used for a wide range of cosmetic products, such as powders, pasty formulas, creams or gels.

MAIN DEFINITIONS "Waterproof" means that the product contained in the container is not allowed to pass between the inner surface of the container and the sieve.

In the expression, "the perforated portion and the peripheral portion comprise respective materials of different hardnesses and the peripheral portion is made with the most rigid material", the hardness is preferably measured in Shore A.

A material is "soft" if its hardness is less than 25 Shore A.

A material is "rigid" if its hardness is greater than or equal to 25 Shore A.

PREFERRED EMBODIMENTS

The device according to the invention may comprise one or more of the following characteristics, taken separately or according to any combination (s) technically possible (s). These features are preferred embodiments: - The peripheral part is made with the most rigid material. Scraping is effective. The difference in hardness between the material of the perforated part and the material of the peripheral part is at least 10 on the same scale of Shore hardness, and preferably at least 20 on the same scale of Shore hardness. This difference is optimal to obtain both a good flexibility of the perforated part and a good seal. - The peripheral portion comprises a lip, a notch or a tongue, and preferably a lip. They facilitate the deformation of the film at its periphery to facilitate the movement of the sieve to the bottom of the container as and when the product. - The peripheral portion has a lower annular lip and an upper annular lip. The two lips are pressed against the inner surface of the container, to better prevent product exit. - The sieve is made by molding and / or injection and / or bi-injection. The manufacture of the sieve is easy to control. - The distribution orifices have variable or identical sections. The openwork portion may for example represent a decorative pattern. The dispensing orifices are distributed with increasing density on the perforated part as one approaches the X axis. In this case, the application surface can be loaded more strongly in its center than in the center. on its periphery, and get a gradient to the application. The dispensing orifices are of circular, oval or polygonal section and preferably have an elongated section.

DESCRIPTION OF THE FIGURES The invention will be better understood on reading the following detailed description, non-limiting examples of implementation thereof, and on examining the appended schematic and partial drawing on which FIG. 1 represents, in axial section, an example of a device according to the invention, FIG. 2 represents, in isolation, a top view of an example of a screen, FIG. 3 is an axial section along arrow A of FIG. FIG. 3; FIG. 4 shows detail B of FIG. 3; FIGS. 4 to 9 illustrate other configurations of screen openings.

The device 1 for packaging and application shown in FIG. 1 comprises an X-axis container 10 containing a cosmetic product P to be applied, for example, to a skin zone.

The device 1 comprises a screen 30 which is movable in the body 11 of the container 10 along the X axis to accompany the lowering of the level of the product as the samples taken.

The screen 30 rests on the product P, as can be seen in FIG. 1, being pushed towards the bottom of the container 10 by the user each time the product is taken when it bears in the direction of the arrow 100.

The device 1 may comprise a protective cover, not shown.

The screen 30 comprises a perforated portion 31, the thickness measured at the center of the screen 30 is for example between 0.05 and 2 mm and a peripheral portion 32 having two annular sealing lips 33 and 34 respectively facing downwards and upwards and pressing against the inner surface 15 of the body 11 of the container 10. The sieve 30 and the container 10 define a storage chamber 155 of variable volume. The height of the upper lip 34 may be greater than that of the lower lip 33.

The sealing lips 33 and 34 may bend slightly as the sieve 30 descends into the container 10, the storage chamber 155 has a generally symmetrical shape of revolution of the X axis.

The perforated portion 31 of the screen 30 is traversed by a plurality of orifices 35 having sections which can vary with the distance of the orifices to the axis X.

The perforated portion 31 and the annular lips 33 and 34 are made of materials of different hardnesses, the annular lips 33 and 34 being made of a more rigid material than the perforated portion 31. It could be otherwise.

The screen 30 may be perforated and / or cut to the desired shape. The dispensing orifices 35 may be made by laser. The dispensing orifices 35 may be slots.

According to an advantageous embodiment of the invention: the material of the annular lips 33 and 34 is chosen from a low density polyethylene (LDPE), a polypropylene (PP), a linear low density polyethylene (LLDPE), an elastomer thermoplastic (TPE), a polyoxymethylene (POM), polybutylene terephthalate or polybutylene terephthalate (PBT), a TPE of the monomer type ethylene-propylene-diene (EPDM) -PP (SANTOPRENE®), - the material of the perforated part 31 is selected from a polystyrene-b-poly (ethylene-butylene) -b-polystyrene (SEBS), a thermoplastic polyether elastomer (Hytrel® marketed by Dupont), a polyester thermoplastic elastomer (TPE) of polyurethane (TPU), a TPE of the type ethylene-propylene-diene monomer (EPDM) -PP (SANTOPRENE®), ethylene-propylene-diene monomer (EPDM) or a nitrile.

The sieve 30 is made with an outer diameter very close to the inside diameter of the container 10 at the top.

In the example of FIG. 2, the screen 30 comprises a central orifice and concentric orifices crowns, the orifices being angularly equilute around X-axis on each ring, the number of orifices being for example 5 for the first crown, then 12 for the next, then 15, 24 and 30 for the following.

The diameter of the central orifice is for example 2.5 mm. The diameter of the following orifices, as one moves away from the central orifice, passes for example to 2.15, 1.83, 1.55, 1.29 and 1.06 mm respectively.

It is not beyond the scope of the present invention if the orifices all have the same diameter.

FIGS. 3 and 4 show that the lower edge of the lip 33 is substantially at the same level, along the axis X, as the lower face 37 of the perforated portion 31. The upper face 38 of the perforated portion 31 may be substantially flat and perpendicular to X axis while the lower face 37 is for example slightly concave towards the product P.

Thus, the perforated portion 31 may be thinner in the center than at its periphery.

In order to use the device 1, the user can remove a protective cover and then optionally grasp an applicator. The user can then apply the applicator against the perforated portion 31 of the screen 30 to load it into product, which causes the product to be deposited locally on the applicator in the form of product spots, in an amount that depends on the section of the orifices. .

Alternatively, at the time of sampling, the user can rotate the applicator around himself around X-axis, which may have the effect of distributing the product on the surface of the applicator according to concentric loading zones, with a quantity of produces larger in the center than in the periphery. The user can then dab the skin with the product-laden applicator to create a more loaded product deposit in the center than at the periphery, giving the impression of a gradient. The user can fade as much as necessary the product thus deposited with the same applicator, by moving it on the skin, or with the aid of another applicator. Then, the user can replace the applicator and fix the hood.

FIGS. 5 to 9 show only the perforated part 31 and different possibilities of arrangement of the orifices 35.

In Figures 5 and 6, the orifices are organized to form a flower-shaped pattern. The pattern can be reproduced on the skin when the applicator is loaded without turning relative to the container and applied as a tampon to the skin.

In Figure 7, there is illustrated the possibility for the orifices 35 to have a non-circular section, for example chevron. Within a radial branch, there are for example several orifices 35 consecutive whose section decreases closer to the center of the sieve.

In Figure 8, there is illustrated the possibility for the orifices 35 to have a non-circular section, for example in the form of slots. There may be several orifices that succeed in the radial direction and have constant sections.

In Figure 9, the orifices 35 are organized in lines parallel to each other.

Of course, the invention is not limited to the examples illustrated and it is possible in particular to combine characteristics of the examples illustrated in non-illustrated variants. Other arrangements of the orifices 35 are possible, with circular sections or not. Other shapes of the perforated part 31 are possible. Similarly, other structures are possible for the peripheral portion 32. The perforated portion 31 could be made of a more rigid material than the peripheral portion 32. The expression "comprising one" should be understood as being synonymous with " with at least one ".

Claims (10)

1. Device (1) of X-axis for packaging and application, comprising: - a container (10) containing a product (P) to be applied and delimiting an inner surface (15), - a sieve (30) movable according to the X axis, comprising a perforated portion (31) comprising orifices (35) through which the outlet of the product and a peripheral portion (32) bearing on the inner surface (15) of the container (10) , the screen (30) defining with the container (10) a storage chamber (155) of variable volume, characterized in that the perforated portion (31) and the peripheral portion (32) comprise respective materials of different hardnesses. 2. Device (1) according to claim 1, the peripheral portion (32) being made with the most rigid material. 3. Device (1) according to any one of the preceding claims, the hardness difference between the material of the perforated portion (31) and the material of the peripheral portion (32) being at least 10 on the same scale. of Shore hardness. 4. Device (1) according to any one of the preceding claims, the peripheral portion (31) having a lip (33, 34), a notch or a tongue, and preferably a lip. 5. Device (1) according to any one of the preceding claims, the peripheral portion (31) having a lower annular lip (33) and an upper annular lip (34). 6. Device (1) according to any one of the preceding claims, the screen (30) being made by molding and / or injection and / or bi-injection. 7. Device (1) according to any one of the preceding claims, the dispensing orifices (35) being of variable or identical section. 8. Device (1) according to any one of the preceding claims, the dispensing orifices (35) being distributed with increasing density on the perforated portion (31) as one approaches the X axis . 9. Device (1) according to any one of the preceding claims, the dispensing orifices (35) being of circular, oval or polygonal section and preferably having a section of elongated shape. 10. Cosmetic process, comprising the steps of: - providing a device according to any one of the preceding claims, - loading into product an applicator member by exerting pressure on the sieve (30) and possibly causing displacement sieve (30) to decrease the volume of the storage chamber (155) and make the product exit through the orifices (35), - apply the product on keratin materials.