Method of applying makeup by means of a magnetic composition including at least one interferential pigment

Abstract

The present invention relates to a method of applying makeup to keratinous substances, in particular the skin, the lips, the nails, or hair, the method comprising the following steps: depositing at least one cosmetic composition on the surface to be made up, the cosmetic composition comprising: bodies that present non-zero magnetic susceptibility and that are movable under the effect of a magnetic field; and at least one interferential pigment; and exposing at least part of the composition to a magnetic field, so as to modify the orientation and/or displace at least some of the magnetic bodies.

Claims

1. A method of applying nail varnish to nails, comprising: manually depositing, using a non-magnetic cosmetic applicator, at least nail varnish on a surface of a human nail, the nail varnish comprising: magnetic bodies that are movable under the effect of a magnetic field; and at least one interferential pigment; and after the depositing, manually exposing at least part of nail varnish to a magnetic device producing a magnetic field, the magnetic device located above the nail varnish during the exposing, so as to modify the orientation and/or displace at least some of the magnetic bodies resulting in formation of a visible pattern on the nail varnish according to the magnetic field of the magnetic device, the magnetic bodies within the pattern being oriented and/or displaced differently than the magnetic bodies outside of the pattern.

2. The method according to claim 1, in which the magnetic field is exerted by a permanent magnet.

3. The method according to claim 1, in which the magnetic field is exerted by an electromagnet.

4. The method according to claim 2, in which the magnet or electromagnet is rotated.

5. The method according to claim 3, in which the electromagnet is powered by at least one battery.

6. The method according to claim 3, in which the electromagnet is switched on intermittently while the pattern is being formed.

7. The method according to claim 1, in which the magnetic field is applied until the nail varnish obtains a fixed appearance.

8. The method according to claim 1, in which the magnetic field is applied for a period of time that is shorter than the period of time that causes all of the magnetic bodies in the exposed region to be permanently displaced and/or oriented.

9. The method according to claim 1, in which the magnetic field is exerted successively on different regions of the surface that are coated with the nail varnish.

10. The method according to claim 9, wherein the magnetic field is exerted successively on regions of the surface that are disjoint.

11. The method according to claim 1, in which at least one region of the surface that is coated with the nail varnish is not exposed to the magnetic field.

12. The method according to claim 1, in which the applicator comprises a brush, a flocked endpiece, or a foam.

13. The method according to claim 1, wherein the magnetic bodies particles are made up, at least in part, of the interferential pigment.

14. The method according to claim 1, in which the magnetic bodies are different from the particles of the interferential pigment.

15. The method according to claim 1, wherein the magnetic bodies comprise fibers or particle chains.

16. The method according to claim 1, in which the interferential pigment is a goniochromatic pigment.

17. The method according to claim 1, in which the interferential pigment comprises reflective particles.

18. The method according to claim 1, in which the nail varnish includes at least one volatile solvent.

19. The method according to claim 1, in which the nail varnish includes at least one film-forming polymer.

20. A method of applying makeup to a nail, comprising: manually depositing, using a non-magnetic cosmetic applicator at least one cosmetic composition on a surface of the nail, the cosmetic composition comprising: magnetic bodies that are movable under the effect of a magnetic field; and at least one interferential pigment; and after the depositing, manually engaging a portion of a magnetic device with a portion of the nail such that neither a magnet of the magnetic device nor the engaged portion of the magnetic device contacts the surface or the composition; exposing at least part of the composition to a magnetic field of the magnet, the magnetic device located above the cosmetic composition during the exposing, so as to modify the orientation and/or displace at least some of the magnetic bodies resulting in formation of at least one visible pattern on the composition according to the magnetic field of the magnetic device, the magnetic bodies within the pattern being oriented and/or displaced differently than the magnetic bodies outside of the pattern.

21. The method of claim 20, wherein the portion of the magnetic device is a positioning member.

22. The method of claim 21, wherein the positioning member is an abutment surface.

23. The method of claim 1, wherein the pattern is recognizable as at least one of a star, a sphere in relief, and stripes.

24. The method of claim 20, wherein the pattern is recognizable as at least one of a star, a sphere in relief, and stripes.

25. The method of claim 1, wherein the pattern is a repeated pattern.

26. The method of claim 20, wherein the pattern is a repeated pattern.

Description

(1) The invention can be better understood on reading the following detailed description of non-limiting implementations thereof, and on examining the accompanying drawings, in which:

(2) FIG. 1 is a diagram showing an example of a kit of the invention;

(3) FIG. 2 is a diagrammatic and fragmentary axial section view showing the magnetic device of FIG. 1;

(4) FIGS. 3 and 4 are diagrams showing the kit being used;

(5) FIG. 5 shows an example of a pattern that can be obtained by means of the invention;

(6) FIG. 6 is a diagram showing a receptacle containing an additional composition that is suitable for being applied to the surface;

(7) FIG. 7 is a diagram showing, in isolation, another example of a magnetic device that can be used;

(8) FIG. 8 is a diagram showing the FIG. 7 magnetic device provided with a positioning member for positioning the magnet facing the made-up surface;

(9) FIGS. 9 and 10 are diagrams of other examples of kits of the invention;

(10) FIG. 11 shows the FIG. 10 kit being used;

(11) FIG. 12 is a diagram showing, in elevation and in isolation, an example of an applicator secured to a magnetic device;

(12) FIG. 13 is an axial and diagrammatic section of another example of a kit of the invention;

(13) FIG. 14 is a diagram showing another example of a kit of the invention;

(14) FIG. 15 shows another example of a packaging device for the composition;

(15) FIG. 16 shows a perforated mask that is suitable for being used during implementation of the method of the invention; and

(16) FIG. 17 shows a magnetic sheet that is suitable for being used during implementation of the method of the invention; and

(17) In the figures, magnetic bodies are shown in the form of dots in order to make the drawings easy to understand, but in reality the individual bodies need not be visible to the naked eye.

(18) FIG. 1 shows a kit 1 comprising a cosmetic composition C.sub.1 containing magnetic particles P having orientation and/or position that affects the appearance of the composition after it has been deposited on a surface such as the skin, the lips, the nails, hair, or even false nails.

(19) In the embodiment shown, the composition C.sub.1 is a nail varnish contained in a receptacle 2 that is closed by a cap 3. The cap supports a non-magnetic cosmetics applicator 4 including an applicator member 5 constituted by a brush enabling the varnish to be applied to the nails.

(20) The kit 1 further comprises a magnetic device 10 that makes it possible to generate a magnetic field that is useful for changing the appearance of the composition C.sub.1 without making contact therewith.

(21) In the embodiment under consideration, the magnetic device 10 comprises a permanent magnet 12 supported by a support member 13 of longitudinal axis X, the polar axis of the magnet 12 being substantially perpendicular to the axis X.

(22) In the embodiment under consideration, the magnetic device 10 is arranged to generate a rotating magnetic field, and includes a motor (not shown), housed in a casing 15, so as to rotate the support member 13 about it axis X.

(23) A switch 16 is present on the casing 15 so as to enable the user to switch on the motor, thereby rotating the support member 13 together with the magnet 12.

(24) In a variant not shown, the rotating magnetic field is generated by a plurality of solenoids that are powered sequentially so as to generate a rotating field.

(25) In order to use the kit 1, the user can begin, as shown in FIG. 3, by applying the composition C.sub.1 by means of an applicator 4 to the surface S to be made up, specifically a fingernail.

(26) In the subsequent step shown in FIG. 4, the user brings the magnetic device 10 over a central region R of the surface S and actuates the switch 16 so as to make the magnet 12 turn.

(27) The magnetic particles contained in the composition C.sub.1 tend to come into alignment with the field lines of the magnet 12 and change orientation, thereby leading to a change in the appearance of the composition C.sub.1.

(28) The user can choose the length of time the magnetic field is to be applied as a function of the desired result.

(29) By way of example, the pattern obtained can give the impression of a sphere in relief, as shown in FIG. 5.

(30) If necessary, the user can apply a second composition C.sub.2, e.g. a transparent varnish, contained in a receptacle shown in FIG. 6, once the composition C.sub.1 has dried.

(31) Applying the second composition C.sub.2 makes it possible to create an effect of additional depth, for example.

(32) In the nail varnish embodiment in FIGS. 1 to 5, the composition C.sub.1 may have the following formulation, with quantities being expressed in percentages by weight in all of the examples below.

EXAMPLE A

(33) TABLE-US-00001 Nitrocellulose 11 N-ethyl o,p-toluenesulfonamide 5 Alkyde resin 10 Isopropanol 4 Interferential magnetic pigment* 0.5 Butyl acetate/ethyl acetate 50/50 Qsp 100 *Nacres containing at least 14% of Fe.sub.3O.sub.4, referenced COLORONA PATINA GOLD (117288), and sold by MERCK.

(34) The appearance of such a nail varnish can be changed by applying a magnetic field before the varnish has had time to dry.

(35) By way of example, when a second composition C.sub.2 is applied to the first, said second composition has the following formulation.

EXAMPLE B

(36) TABLE-US-00002 Nitrocellulose 11 N-ethyl o,p-toluenesulfonamide 5 Alkyde resin 10 Isopropanol 4 Butyl acetate/ethyl acetate 50/50 Qsp 100

(37) Such a composition makes it possible to create an effect of additional depth.

(38) In a variant, the second composition may be intended to create a colored base, and it is applied before the first. By way of example, the second composition then has the following formulation.

EXAMPLE C

(39) TABLE-US-00003 Nitrocellulose 11 N-ethyl o,p-toluenesulfonamide 5 Alkyde resin 10 Isopropanol 4 DC RED7 CI 15850 pigment 2 Magnetic pigment* 0.2 Interferential pigment** 3 Butyl acetate/ethyl acetate 50/50 Qsp 100 *STAPA WM IRON VP 041040 by ECKART. **Xirona Kiwi-Rose by Merck.

(40) When it is subjected to a magnetic induction field, the composition presents a decorative appearance that is frozen after drying. The addition of the interferential pigment makes it possible to impart an additional color effect overall so as to enhance the effect provided by the particle having magnetic susceptibility. In the example under consideration, a goniochromatic effect is used between the colors green and pink.

(41) Naturally, whatever the nature of said composition, the magnetic field applied thereto need not rotate. By way of example, FIG. 7 shows a magnetic device which, at its end, includes a permanent magnet 12 in the form of a bar.

(42) When the magnetic field does not rotate, the user can, for example, move the magnet into the vicinity of the composition C.sub.1 as a function of the desired result.

(43) Whatever its nature, the magnetic device may include a member enabling it to be positioned relative to the surface S.

(44) By way of example, the positioning member serves to prevent the magnetic device from touching the composition while the magnetic field is being exerted.

(45) The positioning member can also serve to center the pattern that is produced relative to the surface S, e.g. the nail.

(46) Depending on the nature of the surface, the positioning member could take various forms, e.g. that of an extension 17 offering an abutment surface for engaging the end of the finger, as shown in FIG. 8.

(47) FIG. 9 shows another embodiment of a kit 1 of the invention, including a first composition C.sub.1 constituted in this embodiment by a liquid lipstick or a lipgloss.

(48) In this embodiment, the applicator 4 comprises a flocked endpiece 20 supported by the cap 3 of the receptacle 2.

(49) By way of example, the magnetic device 10 is in the form of a flexible structure, e.g. made of plastics material filled with magnetized particles, creating alternate N and S poles, thereby making it possible to form repeated patterns, e.g. stripes, on the surface coated with the first composition.

(50) By way of example, for lipstick, the composition C.sub.1 presents the following formulation.

EXAMPLE D

(51) TABLE-US-00004 Octyl-2 dodecanol 10 Ditertiobutyl 4-hydroxytoluene 0.07 Polybutene (monoolefins/isoparaffins 95/5) 50 (PM: 2060) A mixture of isopropyl, isobutyl, and n-butyl 0.4 p-hydroxybenzoates (40/30/30) Pentaerythrityl tetraisostearate 11.33 Tridecyle trimellitate 13 2-dcyl tetradecanoic acid triglyceride 15 (GUERBET C24) Interferential magnetic pigment* 0.2 *Nacres containing at least 14% of Fe.sub.3O.sub.4, sold under the reference CLOISONNE NU ANTIQUE GREEN 828 CB by ENGELHARD.

(52) Another kit 1 of the invention is shown in FIG. 10. In this embodiment, the kit 1 includes a compact 30 constituted by a base body 31 and a lid 32 hinged thereon.

(53) The base body 31 includes a compartment 33 housing the composition C.sub.1, which, in the embodiment shown, is constituted by a foundation in the form of a paste.

(54) The base body 31 includes a housing 34 arranged to receive at least one magnet 12.

(55) By way of example, the magnet 12 may present an adhesive face 25 or any other mounting means enabling the user to fix it to the end of a finger so as to bring it into the vicinity of the made-up zone, e.g. a region of the face as shown in FIG. 11.

(56) After applying the composition C.sub.1 to the skin, the user can modify the clarity of said composition by exposing it to the magnetic field generated by the magnet 12.

(57) By way of example, for a composition for making up the skin, said composition can have the following formulation.

EXAMPLE E

(58) TABLE-US-00005 Magnesium sulfate 1.5 Sodium carboxymethylcellulose 0.5 Distearyldimethylammonium modified hectorite 1 Cyclopenta dimethylsiloxane 16 Glycerol 5 A mixture of oxyethylenated 9 polymethylketyldimethyl methylsiloxane, polyglycerol isostearate (4 moles), hexyl laurate Water 31.6 A mixture of ethylene glycol acetyl stearate, 0.3 glyceryl tristearate Brown iron oxide coated with aluminum stearoyl 1.58 glutamate (97/3) Anatase titanium oxide coated with stearoyl 18.17 glutamate (97/3) Yellow iron oxide coated with aluminum 4.56 stearoyl glutamate (93/3) Black iron oxide coated with aluminum stearoyl 0.69 glutamate (97/3) Polydimethylsiloxane (viscosity: 5 cSt) 6 Interferential magnetic pigment* 0.5 1,2-pentanediol 3 *Nacres with at least 14% of Fe.sub.3O.sub.4, sold by Merck under the reference TIMICA NU ANTIQUE BRONZE 240 AB.

(59) Whatever the type of applicator, the magnet 12 may, where appropriate, be incorporated in the applicator.

(60) In the embodiment in FIG. 12, the closure cap 3 is surmounted by the magnet 12 on the side remote from the applicator member 5.

(61) In the embodiment in FIG. 13, the magnet 12 is supported by a support member 13 surmounted by a cap 51, and can, when not in use, be housed in a compartment 50 of the cap 3 for closing the receptacle 2 containing the first composition C.sub.1. The cap 51 serves as a handle for the magnet 12, and also serves to close the compartment 50.

(62) It is not beyond the ambit of the present invention for the magnetic field to be generated by an electromagnet instead of by a permanent magnet.

(63) FIG. 14 shows a kit 1 comprising a receptacle 2 constituted by a pot containing the first composition C.sub.1, and a magnetic device 10 comprising an electromagnet 40 at one end of a casing 44 housing the power supply.

(64) A switch 45 enables the electromagnet 40 to be switched on selectively by the user.

(65) Various devices other than those described above for packaging and/or dispensing or applying the composition C.sub.1 can be used.

(66) By way of example, the composition C.sub.1 can be deposited on the surface S without using an applicator, but in the form of a spray, e.g. by using a pump 60 as shown in FIG. 15. The spray can also be generated by means of an airbrush or by a pressurized receptacle, for example.

(67) A perforated mask 70, as shown in FIG. 16 in which its perforation pattern 71 is in the shape of a star, can be interposed between the spray and the surface to be made up.

(68) An optionally-perforated sheet 75 that is permeable to the magnetic field can be interposed between the magnet 12 or the electromagnet 40 and the surface S, so as to change the shape of the field lines and create novel effects.

(69) Naturally, the invention is not limited to the examples given above.

(70) For example, the kit may include a plurality of magnets having various shapes, so as to create various patterns.

(71) The expression comprising a should be understood as being synonymous with comprising at least one, and the expression in the range should be understood as including the limits of the range.