FR2798284A1 - Cosmetic for skin, lips or nails has matrix to produce surface forming optical image with micro-reliefs - Google Patents

Abstract

The applicator deposits a coating (R ) on the users skin, lips or nails. The coating has a matrix to produce a surface forming an optical image. A substrate (20) can be applied first, onto which the coating is deposited. The matrix can form micro-reliefs which define a diffractive coating. The coating can be tinted.

Description

The present invention relates to the field of make-up and the object of creating new makeup effects, in particular on a keratin support such as skin, lips or nails, by means of a new make-up device.

This makeup device is characterized by the fact comprises a coating to be deposited on a keratinous support or on false false eyelashes nails and a microrelief matrix arranged to form on said coating an optically variable image.

By optically variable image is meant goniochromatic effects and / or effects of relief or volume (3D effects) and / or the appearance of the disappearance of elements, possibly juxtaposed so as to lead to animation effects, according to the direction of observation.

Thanks to the invention, it is possible to create on the skin, lips or nails, or on false nails or false eyelashes, aesthetically attractive effects and / or to hide imperfections such as, for example, wrinkles, fine lines , pimples, redness, rosacea or blackheads.

In particular, a contrast effect can be created to hide a defect or to deflect an imperfection.

The coating producing the optically variable image can still play the role of a fly.

In addition, the invention allows the creation of colors by a single phenomenon of interference, without using dyes or specific pigments, so without posing the difficulties (compatibility, toxicology, regulation) encountered in the development of new compositions comprising dyes or pigments.

Thus, the coating used may be without pigment or dye.

The use, in the invention, of a matrix to form the optically variable image offers a great freedom in the choice of the coating in which this image is made.

Thus, the user can choose any suitable coating, for example a nail polish or a lipstick of the desired color, available on the market. Advantageously, the makeup device according to the invention comprises a packaging and application device for applying a coating layer on the matrix, the keratin support, false nails or false eyelashes. The coating used may in particular be a peelable nail polish, which can be removed without a solvent.

The microreliefs advantageously constitute a diffraction grating. The optically variable image can produce a goniochromatic effect. The optically variable image can still produce a holographic effect. The subject of the invention is also the use of the abovementioned device for decorating keratin support such as skin, lips or nails, false nails or false eyelashes.

The subject of the invention is also the use of a device as mentioned above to create an optically variable image on a keratinous support or on false false eyelash nails, for example on the skin to camouflage local imperfections of the latter, to create a volume effect on the lips or create an optical effect on the eyelashes or eyebrows.

The invention also relates to the use of a master diffraction grating for forming on a coating intended to be applied to a keratinous support, or on false nails or false eyelashes, an optically variable image.

The invention also relates to the use of a matrix for forming on a keratinous support or on false nails or false eyelashes an optically variable image. The coating used may be a nail polish, a lipstick, a foundation, a mascara, a tattoo or a powder.

The invention also relates to a method for producing an optically variable image on a keratin support or false false eyelashes, this method comprising the steps of a) applying a coating on a microrelief matrix, b) transferring the coating on the keratin support or false nails or false eyelashes, the matrix leaving on the coating a print producing an optically variable image.

Advantageously, two coating layers are successively applied to the matrix, the second layer being applied to the first one after allowing the latter to dry, this second layer serving to ensure the adhesion of the former to the keratinous support or false nails. or false eyelashes.

The second layer may have a chosen formulation such that it causes drying the cracking of the first layer, to induce an additional aesthetic effect.

The invention also relates to a method for producing in situ a keratinous support or false nails or false eyelashes an optically variable image, this process comprising the steps of: a) applying a coating on said keratinous support or the false nails or false eyelashes, b) applying a microrelief matrix to the coating, c) removing the matrix leaving on the coating the impression of the microreliefs of the matrix, this impression producing an optically variable image. The subject of the invention is also a diffraction grating, characterized in that it is produced <I> in situ </ I> on a keratin support or false nails or false eyelashes.

The subject of the invention is also a coating comprising an optically variable image, characterized in that it is produced <I> in situ </ I> on a keratinous support, for example the skin or the nails.

The invention also relates to a support made up by means of a coating on which an optically variable image has been formed using a microrelief matrix.

Thus, the subject of the invention is a keratinous support or false false eyelash nails coated with a coating comprising the imprint of a diffraction grating, in particular a hologram.

The invention further relates to the use of a coating as mentioned above for the implementation of the invention.

The invention also relates to a makeup layer, for example a layer of nail polish, lipstick, foundation, mascara or tattoo, having on the surface a diffraction grating.

The coating may be covered with a protective layer, for example a clear varnish.

The invention will be better understood on reading the detailed description which will follow, nonlimiting examples of implementation, and on examining the appended drawing in which - FIG. 1 is a schematic view of a device conforming to FIG. FIG. 2 illustrates the application of the coating to the skin; FIGS. 3 and 4 illustrate the application of a holographic matrix to the coating deposited on the skin, to form <i> in situ </ 1> an optically variable image; - FIG. 5 shows a device comprising a pressing member making it possible to control the application pressure of the matrix on the coating; FIG. 6 represents a device in which the holographic matrix is fixed on a roll; FIG. 7 represents a matrix on which a first coating layer has been deposited; FIG. 8 represents a matrix on which a second coating layer has been deposited after drying of the first, - Figure 9 illustrates the transfer of the coating and the matrix on a fingernail, and - Figure 10 illustrates the removal of the matrix.

There is shown in Figure 1 a makeup device 1 according to an exemplary implementation of the invention.

This device comprises, on the one hand, a packaging and application device 10 and, on the other hand, a matrix 20.

The application conditioning device 10 comprises a container 11 containing a coating R in the liquid state and an applicator 12 provided at one end with a gripping element also constituting a closure cap for the container 11 and at the other end of an applicator element 13 such as a felt, a brush or a flocked foam, for depositing on the skin, the lips or the nails, or the matrix 20, or false nails, a layer of the coating R.

The container 11 comprises a wiper member 14 for squeezing the applicator element 13 at its outlet.

The matrix 20 has a diffraction grating 21 in the form of microreliefs.

This diffraction grating makes it possible to produce an optically variable image such as a hologram. Such matrices can be manufactured for example by SPECTRATEK 5405 Jandy Place, 5406 Los Angeles, California 90066, USA or HOLOGRAM INDUSTRIES, 22 avenue de lEurope, 77600 Bussy Saint-Georges. Preferably, a matrix having microreliefs is used. the size is large enough to easily leave an impression on the coating deposited on the skin. The microreliefs can thus be relatively coarse.

The microreliefs are here arranged to produce goniochromatic effects and / or relief or volume effects and / or the appearance and disappearance of elements in the direction of observation of the matrix.

matrix 20 may comprise a metal sheet or plastic, embossed, etched or molded.

The matrix 20 serves as a master structure for producing, in contact with a coating layer deposited on the skin, a roughness which will create an optically variable image. The coating R may consist of a nail polish, a lipstick, a mascara or more generally any composition that is dermatologically and / or cosmetically acceptable and is capable of taking at least partially the impression of the microreliefs of the matrix. .

To use the makeup device 1, in a first example of implementation of the invention, it is first applied by means of the packaging device and application 10 a coating layer R in the liquid state on the area to be makeup , for example on the skin P of the face as illustrated in FIG.

Then, immediately or after a suitable drying time, applies the face 21 comprising the microreliefs of the matrix 20 to the coating layer R, as illustrated in FIG.

In a first example of implementation of the invention, the matrix 20 is applied to the coating layer R before it has dried, so that the still-liquid coating comes into contact with the microreliefs of the matrix 21.

The matrix 20 is then immobile on the skin for the time sufficient for the coating layer R to dry on the surface.

If necessary, the matrix is immobilized on the support, here the skin, during the drying period by means of adhesive fixing means, for example by means of an adhesive tape.

When the matrix 20 is removed, as illustrated in FIG. 4, there is observed at the surface of the coating R a zone 31 comprising microreliefs providing an optically variable image.

In another embodiment of the invention, the coating layer 30 is allowed to dry without applying the matrix 20 for a time sufficient to make it dry to the touch but still sufficiently deformable to receive the imprint of the matrix.

By pressing the face 21 of the matrix 20 on the coating layer 30, microreliefs are created on its surface.

To exert sufficient pressure on the coating layer 30 may use a device 40 as shown in Figure 5, this device comprising a support part 41 on the underside of which is fixed by its face 22 opposite the face 21, the matrix 20.

This support piece 41 is movable inside a gripping member against the return action of a spring 43 working in compression.

The piece 41 has a shoulder 44 at its upper part, this shoulder resting against an inner rim 45 of the gripping member 42.

The distance between the upper face 46 of the support member 41 and the bottom 47 of the gripping member 42 is greater than the distance between the plane of the face of the die 20 and the lower edge 48 of the die member. gripping 42, so that when the device 40 is pressed against the skin, the lower edge 48 bears on the latter and the spring 43 is shortened by a predetermined stroke, which allows to apply the matrix 20 with a force adapted to the skin.

This force is chosen so as to make it possible to create microreliefs on the surface of the coating layer 30 without exerting too great a pressure which would damage it, especially if the core of the latter has not dried sufficiently.

The die 20 may also be fixed, as illustrated in FIG. 6, on a support device 50 comprising a roller 51 on the outer surface of which the die is attached, this roller 51 rotating inside a fork 52 secured to of a handle 53. In a variant not shown, the matrix is made directly on the roll surface.

In the variants of implementation of the invention which have just been described, the optically variable image is formed <I> in </ I> on the previously deposited coating of a keratinous support or false nails or false eyelashes.

In another implementation of the invention, the optically variable image is formed on the coating before it is applied to a keratinous support or false nails or false eyelashes.

FIG. 7 shows a matrix 20 coated on its face 21 comprising the microreliefs of a first coating layer 60.

After its application on the matrix, the coating is allowed to dry sufficiently so that its face 62 in contact with the face 21 of the matrix takes the impression of the microreliefs of the latter.

After drying of the first layer 60, the user applies a second coating layer on the first layer, this second layer being intended to ensure the adhesion of the first layer 60 on the support to make up.

Before this second layer 61 is dry, the user applies the assembly to the support to be made up, for example a fingernail as illustrated in FIG. 9. After drying of the second layer 61 of coating, the matrix 20 peeled off from the first layer 61 60 layer of coating, as shown in Figure 10.

The face 62 becomes apparent, producing an optically variable image. A coating having the following formulation can be used

- <SEP> alcohol <SEP> ethyl <SEP> ...................................... ............................ <SEP><B> 2.9% </ B>
<tb> - <SEP> water <SEP> ....................................... ......................................... <SEP> qsp <SEP><B> 100% </ B>
<tb> - <SEP> plasticizer <SEP> ....................................... ..................................... <SEP><B> 2.6% </ B >
<tb> - <SEP> thickener <SEP> ....................................... .................................. <SEP><B> 1.3% </ B>
<tb> - <SEP> conservative <SEP> ....................................... ............................ <SEP> sufficient quantity <SEP>
<tb> - <SEP> pigments <SEP> ....................................... ...................................... <SEP><B><I> 1,5 % </ I></B>
<tb> - <SEP> dispersion <SEP> aqueous <SEP> from <SEP> polyurethane <SEP> to <SEP> 30 <SEP>% <SEP> in <SEP> material <SEP> active <SEP> 75,6 It is also possible to use a coating without pigment, having the same formulation as above, except the presence of the pigment. For a peelable nail polish having the above formulation, 10 minutes after the application of the first layer, the matrix is applied before applying the second layer, then the assembly is applied immediately to the nail.

We wait another 10 minutes and we remove the matrix.

In all the examples of implementation of the invention above, the matrix can be made from the image of a real object by synthesis by means of a computer calculating the thickness of each point of the matrix so that to obtain the desired optical effect.

The user can then easily choose the image that will be produced by the matrix on the coating, for example the pattern of choice.

The matrix is advantageously coated before use with a removable protective film.

The coating having received the imprint of the matrix may be covered by a protective layer intended to protect it, for example a transparent varnish.

The coating may or may not include pigments, the invention making it possible to obtain an optical effect even in the absence of pigment.

The coating may be formulated to have a metallic appearance.

Claims (12)

1. makeup device (1), characterized in that it comprises a coating (R) to be deposited on a keratin support such as skin, lips or nails, or on false nails or false eyelashes and a matrix Microrelief device (20) arranged to form said coating an optically variable image. 2. Device according to claim 1, characterized in that comprises a packaging device and application (10) for applying layer (30) coating (R) matrix, keratin support or false nails or false eyelashes. 3. Device according to one of the preceding claims, characterized in that said coating is a peelable varnish, a lipstick, a foundation, a mascara or a tattoo. 4. Device according to one of the preceding claims, characterized in that the microreliefs constitute a diffraction grating. 5. Device according to one of the preceding claims, characterized in that the optically variable image produces a goniochromatic effect. 6. Device according to one of the preceding claims, characterized in that the optically variable image produces a holographic effect. 7. Device according to one of the preceding claims, characterized in that said coating is without pigment or dye. 8. Use for decorating a keratin support such as skin, lips or nails, false nails or false eyelashes, a device as defined in one of claims 1 to 7. 9. Use of the device as defined in one of claims 1 to 7 to hide local imperfections of the skin. 10. Use of the device as defined in one of claims 1 to 7 to create a volume effect on the lips. 11. Use of the device as defined in one of claims 1 to 7 to create an optical effect on the eyelashes or eyebrows. 12. Use of a microrelief matrix constituting a marten diffraction grating for forming, on a coating intended to be applied to a keratinous support or false nails or false eyelashes, an optically variable image. A process for producing an optically variable image of a keratinous support of false nails or false eyelashes, said method comprising the steps of a) applying a coating on a microrelief matrix, b) transferring the coating to the keratin support or false nails or false eyelashes, the matrix leaving on the coating a print producing an optically variable image. 14. The method of claim 13, characterized in that applies successively two layers of coating on the matrix, the second layer being applied to the first after allowing the latter to dry, the second layer being used to ensure the adhesion of the first on the keratin support or false nails or false eyelashes. 15. A method for making <I> in situ </ I> on a keratinous support on false nails or false eyelashes an optically variable image, comprising the steps of: a) apply a coating on the keratinous support or false nails or false eyelashes, apply a microrelief matrix on the coating, remove the matrix leaving on the coating the microrelief impression of the matrix, this impression producing an optically variable image . 16. Method according to one of claims 13 to 15, characterized in that it comprises the step of applying a protective layer such as a transparent varnish on the coating having the optically variable image. 17. Diffraction grating, characterized in that it is produced <I> in situ </ I> on a keratinous support by means of a microrelief matrix. 18. Keratin support covered with a coating comprising the imprint of a microrelief matrix constituting a diffraction grating, in particular a hologram. 19. False nails covered with a coating comprising the imprint of a microrelief matrix constituting a diffraction grating, in particular a hologram. 20. False eyelashes coated with a coating comprising the imprint of a microrelief matrix constituting a diffraction grating, in particular a hologram. 21. Use of a coating for the implementation of the method as defined in one of claims 13 to 15. 22. A makeup layer, in particular a layer of nail polish, lipstick, foundation, of mascara or tattooing having on the surface microreliefs constituting a diffraction grating.