FR2946870A1 - Make up of human keratin fibers, preferably eyelashes, comprises applying adhesive composition on the fibers and applying on the coated fibers an another composition in the loose powder form to form a deposition of the composition - Google Patents

Abstract

Process for make up of human keratin fibers, preferably eyelashes, comprises: applying first adhesive composition on the fibers; and applying on the fibers thus coated a second composition in the loose powder form to form a deposition of the composition on the fibers, where the second composition comprises reflective plate like particles and has a reflectivity of >= 5, preferably 10. An independent claim is included for a kit comprising within a single package: a first adhesive composition; a second powder composition comprising miniplate reflective particles; a first application member for applying the adhesive composition on keratin fibers; and a second application member for applying the powder composition on fibers coated with adhesive composition.

Description

The present invention relates to the makeup of human macroscopic keratinous fibers and more particularly but not exclusively that of eyelashes, eyebrows or hair. Most cosmetic products for eyelashes have the function of coloring and thickening them. The eyelashes become darker and thicker and are therefore more visible to the consumer or to an outside observer. However, this visibility remains insufficient with conventional mascaras and without shine effect. The introduction of nacres in most make-up compositions, especially in mascaras, does not systematically improve the shine effect and visibility. The nacres being mixed with other components of the formulation such as waxes or polymers, the gloss effect can be altered or even canceled. It has been suggested to use a two-component makeup system to improve the hold or the optical effects of cosmetic compositions. US Pat. No. 6,367,484 describes the use of a first composition containing a film-forming polymer and the deposition of solid particles belonging to a second composition before complete drying of the first composition. These solid particles are preferably spheres and the desired effect is preferably a relief effect. Examples of nail polish are described. The effect obtained is difficult to remove and very sensitive to drying time.

The application WO 02/05762 describes the use of a first composition containing an adhesive material and a second cosmetic composition subsequently applied. The first composition provides an improved hold effect. The examples mention the use of polyisobutylenes in the first composition and the second composition is powdery.

Examples of compositions comprising adhesive particles are described in US 2006/0024255, US 2002/0041858 and US 2007/0224140. There is a need to easily create attractive visual effects on keratinous fibers, in particular eyelashes, which are both durable over time and easily removable from the skin.

The invention aims to meet this need and it succeeds, according to a first aspect, with a process for making up human keratin fibers, in particular eyelashes, comprising the steps of: 1) applying a first adhesive composition to said fibers, 2) applying to said fibers thus coated a second composition in the form of free powder, this composition comprising reflective platelet particles, so as to form a deposit of this second composition on the fibers.

The invention can make it possible to easily obtain a relatively large particle deposition, leading to very visible visual effects, for example brightness, charge and / or elongation. Makeup has a good performance and makeup removal is easy. A platelet form is required according to this aspect of the invention, because allows to obtain particularly satisfactory aesthetic results. The invention further relates, in another of its aspects, to a process for making up human keratin fibers, in particular eyelashes, comprising the steps of: 1) applying a first adhesive composition to said fibers, 2) applying to the fibers thus coated a second composition in the form of free powder, this second composition comprising reflective particles and the composition having a reflectivity of greater than or equal to 5, preferably greater than 7, more preferably 10. According to this other aspect of the invention, the platelet form is not required, but only preferred. Adhesive Composition The first adhesive composition may comprise any type of adhesive adapted to maintain the particles of the second composition on the eyelashes coated with this adhesive composition.

Preferably, the adhesive composition is chosen such that it creates a discontinuous adhesive film on the fibers to be treated. Thus, the adhesive composition may be devoid of continuous film-forming adhesive on the fibers to be treated. The Applicant has found that the presence of a discontinuous film facilitates makeup and make-up removal and can lead to better aesthetic results than the use of an adhesive composition forming a continuous film on the surface of the fibers. The discontinuous film reduces the risk of sticking the eyelashes together, and may facilitate the separation of the eyelashes during makeup.

The adhesive composition may comprise adhesive particles making it possible to obtain a deposit which keeps a residual tack after drying and which does not form a film. These adhesive particles may be of various shapes and have a size of between 1 and 100 microns or more. Their behavior is different from that of adhesive polymers of Pl.B type or latex, which form drying liquid or dry films. Despite their tackiness, the adhesive particles do not coalesce. One can observe a collage of particles with each other, but each particle retains all or part of its individuality. The use of such adhesive particles facilitates makeup and make-up removal.

Within an adhesive composition according to the invention, the adhesive particles may be present at a concentration by weight of between 0.1 and 70%, preferably between 0.5 and 10%, more preferably between 1 and 5%. The adhesive composition may be in gel or emulsion form, preferably being relatively fluid, with a volatile phase allowing drying.

The mass content of solvent may be greater than or equal to 50%, preferably greater than 70%. The adhesive particles may be mixed with other components such as gelling agents or pigments. The adhesive particles may be made of a single material or with two or more materials. In particular, the adhesive particles may have a core of a non-adhesive material, for example inorganic or organic, and a bark in an adhesive coating. The adhesive material (s) of the adhesive composition, especially the aforementioned adhesive particles, are advantageously chosen from pressure-sensitive adhesives, which retain tackiness after drying. The adhesive composition may in particular comprise pressure-sensitive adhesives chosen from acrylic polymers, in particular copolymers of acrylate and methacrylate, pressure-sensitive adhesives based on rubber or based on styrene copolymers, for example such as styrene-isoprene-styrene (SIS) and styrene-butadiene-styrene (SBS) copolymers.

It may also be urethane polymers, polyurethanes, crosslinked silicones, ethylene-vinyl acetate polymers, styrene-based block copolymers or natural gums, chloroprene, butadiene, isoprene, neoprene or Similar. By way of non-limiting examples of pressure-sensitive adhesives based on rubbery polymers, mention may in particular be made of natural rubber (poly (cis-1,4-isoprene)), graft copolymers methyl-methacrylate-isoprene, copolymers of styrene butadiene, butyl rubber, acrylonitrile-butadiene rubber, styrene-isoprene block copolymers, polybutadiene, ethylene-butylene block copolymers and polychloroprene.

Among the pressure-sensitive adhesives comprising polar acrylic polymers, mention may be made of acrylic acid block or random copolymers, alkyl acrylates and alkyl methacrylates, as well as the copolymers of these acrylics with ethylene and acetate. of vinyl. Other pressure sensitive adhesives that may be mentioned include butyl acrylate, butyl methacrylate and acrylic acid copolymers, these copolymers being commercially available, for example under the trademark RODERM 560 (Rohm and Haas). An example of a pressure-sensitive adhesive that may be partially suitable is poly (2-ethylhexylacrylate), for example that commercially available under the trademark GEL-TAC 100G (Advanced Polymer International Company), as a 40% aqueous dispersion. solid material of 15 micron adhesive acrylic microspheres. Examples of suitable acrylic copolymers are commercially available under the trade names EASTAREZ 2010, 2020 and 2050 (Eastman Cheinical Co.), ACRONAL V210 (BASF), MOWILITH LDM 7255, REVACRYL 491 (Clariant) and FLEXBOND 165 (Air Products). Commercial examples of suitable polymeric rubbers are known as RICON 130 polybutadiene (Atofina Sartomer) and ISOLENE 40 polyisoprene (Elementis). Examples of suitable polyurethane adhesives are available under the trade names SANCURE 2104 (Novéon) and NYLON UR 1400 (Toyobo Vylon).

Examples of suitable vinyl acetate copolymers are commercially available under the trademarks PVP / VA 6-630 (International Specialty Products) and FLEXBOND 149 (Air Products). Examples of vinyl alcohol / vi.nyl acetate copolymers are commercially available under the tradenames CELVOL 107 (Celanese) and ELVANOL 50-42 (DuPont). The deposition of the adhesive composition on the eyelashes can be done using any suitable applicator, for example brush or mascara comb type. The adhesive composition may be contained in a container and the applicator may be arranged to attach to and seal the container. The container comprises for example a threaded neck and the applicator comprises for example a gripping member arranged to screw on the neck and also constituting a closure member of the container. The applicator may comprise a rod carrying the applicator member, for example a brush with a twisted or injected core. The container may comprise a wiper member of the rod and the applicator member. The amount of adhesive composition deposited on the eyelashes is for example 5 to 50 mg per eyelash fringe. Figure 1 shows an eyelash coated with an adhesive composition made according to a preferred embodiment of the invention. It can be seen that this forms a discontinuous deposit of adhesive particles. Powder Composition The second composition comprises reflective particles which are platelet according to one aspect of the invention but may have a different shape according to other aspects of the invention. By "platelet" it is to be understood that the thickness e of the particle is smaller than its largest dimension d. For example, d / e> 10, or even d / e 50. The particles may have at least one planar face or a radius of curvature greater than or equal to 60 m. This can facilitate particle stacking and increase their specular reflectance. A larger particle size may be between 5 and 100 m, preferably between 10 and 60 m. The particle size is preferably greater than or equal to 10 μm, more preferably 20 μm, more preferably greater than or equal to 40 μm.

The die form factor of said particles is advantageously greater than or equal to 5, more preferably greater than or equal to 10, more preferably greater than or equal to 50. The reflective platelet particles are preferably relatively monodisperse with respect to their greatest transverse dimension, more or less 30%. This facilitates the deposition of the particles. Preferably, their surface condition is regular, not rough. The second composition may be devoid of liquid binder. Preferably, the amount of liquid is less than 20% by weight, more preferably 15% or even 5% in mass, so as not to unduly affect the fluidity of the second composition. A good fluidity of the powdery composition can facilitate the deposition on the eyelashes and the formation of an aesthetic coating. Measurement of the reflective power of corn. Ulverulent composition The composition whose reflectivity is to be measured is applied homogeneously at the rate of 0.2 mg / cm 2 on a black Bioskin surface sold by the company Beaulax. Reflective power is measured with the GP-5 goniophotometer from Murakami. The angle of incidence is set at -45 ° and the reflectance is measured between -90 ° and 90 °. The reflectance maximum, corresponding to the specular reflectance, is generally measured at 45 ° and is denoted R45. The minimum reflectance, which is the diffuse reflectance, is usually measured at -30 ° and is noted as R-30. The reflectivity of the composition is defined by R45 / R_30. The reflectivity of the second composition according to the invention is, irrespective of the shape of the reflective particles, preferably greater than 5, more preferably greater than 7, and more preferably greater than 10. Values obtained by applying compositions containing 100 % of the following particles: Particle type Trade mark R45 / R-30 Spherical PMMA Covabead L85 from LCW 0,9 Silicon spherical SB 150 from Miyoshi company 1.1 euasa Nylon e oblong Orgasol 2002 from Arkema l , 4 Talc P3 talc P3 from the Luzenac company 2.4 Bismuth BIRON LF 2000 Oxychloride from the company Merck 7.4 Nacre Mica - Ti O2 Prestige Gold from the company Eckart 8.1 me. FTDO10 Silkyflake Silica Board from the company NSG 8.4 Mica-TIO2W Pearl Flamenco Green 820C from BASF 10.1 mea Synthetic Mica PDM-20L from the company Topy 14.2 Borosilicate coated Metashine ME2040PS from the company NSG 56.8 silver Reflective particles, in particular platelet-shaped, are present in a content greater than or equal to 30% by weight, preferably greater than or equal to 50% by weight, better still greater than or equal to 70% by weight, and even better than or equal to at 80% by weight, relative to the total weight of the pulverulent composition. The pulverulent composition according to the invention preferably comprises nacres as reflective platelet particles. By nacre, it is necessary to understand particles of any shape, iridescent or not, in particular produced by certain shellfish in their shell or else synthesized and which exhibit a color effect by optical interference. The resulting color effect is one of the colors of the rainbow, gold or silver. Two large families can be distinguished within the reflective platelet particles: platelet particles having at least two parallel faces which consist of a single optically homogeneous material; platelet particles which have a layered structure with at least two layers of optically different materials (pigments with a substrate-coating structure or multilayer pigments without a substrate). As examples of platelet particles having at least two parallel faces consisting of a single optically homogeneous material, mention may be made of metal-effect pigments, such as metal platelets, for example platelets of aluminum or metal alloys, for example of copper-zinc, particles of silica, synthetic mica, glass or transparent-effect pigments such as crystalline bismuth oxychloride or polycrystalline titanium dioxide. Examples of metallic pigments are the powders of aluminum, bronze or copper coated with SiO2 sold under the name VISIONAIRE by the company ECKART. Examples of glass platelets that may be mentioned are the products sold under the name Silkylflake by the company Nippon Sheet Calasse. As an example of a pigment based on bismuth oxychloride, mention may be made of the BIRON pigments marketed by Merck and PEARL products marketed by FARMAQUIMIA. As examples of platelet particles having a layered structure, mention may be made of platelet particles formed of natural or synthetic mica coated with at least one metal oxide layer, selected for example from titanium oxides, in particular TiO 2, of iron in particular Fe 2 O 3, tin, chromium, barium sulfate and the following materials: MgF 2, CrF 3, ZnS, ZnSe, SiO 2, Al 2 O 3, MgO, Y 2 O 3, SeO 3, SiO, HfO 2, ZrO 2, CeO 2, Nb 2 O 5, Ta 2 O 5, MoS 2 and their mixtures or alloys. By way of examples of such particles, mention may be made of particles comprising a synthetic mica substrate coated with titanium dioxide, glass particles coated with brown iron oxide, with titanium oxide, with tin oxide. or a mixture thereof, such as those sold under the trade name REFLECKS by the company ENGELHARD. Mention may also be made of titanium mica coated with an iron oxide, mica coated with bismuth oxychloride, titanium mica coated with chromium oxide, titanium mica coated with an organic dye, and pearlescent pigments based on of bismuth oxychloride. By "titanium mica" or refers to mica coated with TiO2. It may also be mica particles on the surface of which are superimposed at least two successive layers of metal oxides and / or organic dyestuffs. The nacres may have a yellow, pink, red, bronze, orange, brown, gold and / or copper color or reflection. As an illustration of nacres that can be introduced in the second composition, mention may be made of gold-colored mother-of-pearl, in particular those marketed by ENGELHARD under the name Brillant gold 212G (Timica), Gold 222C (Cloisonne), Sparkle gold (Timica ), Gold 4504 (Chromalite) and Monarch gold 233X (Cloisonne); bronze nacres sold especially by the company Merck under the name Bronze Fine (17384) (Colorona) and Bronze (17353) (Colorona) and by Engelhard under the name Super Bronze (Cloisonne); orange nacres, in particular marketed by ENGELHARD under the name Orange 363C (Cloisonne) and Orange MCR 101 (Cosmica) and by the company MERCI. under the name Passion orange (Colorona) and Matte orange (17449) (Microna); brown-colored pearlescent agents, sold especially by the company Engelhard under the name Nu-antique Copper 340XB (Cloisonne) and Brown CL4509 (Chromalite); nacres with a copper sheen, in particular sold by ENGELIIARD under the name Copper 340A (Timica); nacres with a red reflection, in particular sold by MERCK under the name Sienna fine (17386) (Colorona); nacres with yellow glints, in particular sold by Engelhard under the name Yellow (4502) (Chromalite); gold-colored nacres with a gold-tint, in particular marketed by Engelhard under the name Sunstone G012 (Gemtone); pink nacres, especially marketed by ENGELHARD under the name Tan opal G005 (Gemtone); black nacres with gold reflection, sold especially by ENGELHARD under the name Nu antique bronze 240 AB (Timica), blue nacres, especially sold by MERCK under the name Matte blue (17433) (Microna), white nacres with silvery reflection, especially sold by MERCK under the name Xirona Silver and orange, pink, green and gold mother-of-pearl, sold especially by Merck under the name Indian Summer (Xirona) and their blends. We can also mention interference particles on glass base such as Ronastar from MERCK or synthetic mica base such as Sunshine from the company SUN CHEMICAL or PROMINENCE from the company NIKON KOKEN. In the case of an interferential multilayer structure, the reflective particles may, for example, have at least one layer of uniform thickness, in particular a reflective material.

When the reflective particles have a multilayer structure, they may for example comprise a natural or synthetic substrate, in particular a synthetic substrate at least partially coated with at least one layer of a reflective material, in particular at least one metal or material metallic. The substrate may be monomaterial, multimaterial, organic and / or inorganic. More particularly, it may be chosen from glasses, ceramics, graphite, metal oxides, aluminas, silicas, silicates, in particular aluminosilicates and borosilicates, synthetic mica, and mixtures thereof, this list not being not limiting. Reflective particles are described in particular in the documents 1P-A-09188830, JP-A-I0158450, JP-A-10158541, JP-A-07258460 and JP-A-05017710. Still as examples of reflective particles comprising a mineral substrate coated with a metal layer, mention may also be made of particles comprising a silver-coated borosilicate substrate, sold by the company Nippon Sheet Glass under the name 1VIETASHINE.

The second composition may further comprise reflective spherical particles, when the reflection power of the composition satisfies the aforementioned conditions. The second composition may comprise any volatile solvent, for example ethanol, acetone, dimethyl ether, alkanes, water or volatile silicones. To apply the second composition, any applicator capable of taking up a powdery composition and for example having a foam or flocked tip may be used. The applicator may comprise a flat tip, of cylindrical shape of revolution or cone. The fineness of the foam or the thickness of the flocking can be adjusted to allow the user to take the optimum amount of composition.

If necessary, the applicator comprises a magnetic tip, which can facilitate the removal of particles having a magnetic susceptibility. It is also possible to use, for applying the powdery composition, a support, for example in the form of a sheet or a patch, on which the second composition is already deposited in the form of a powdery layer. The support may be paper, non-woven or plastic. It is also possible to use an applicator with suction, comprising for example a nozzle covered with a porous surface with air and fineness preventing the passage of particles. The tip is connected to a suction source, for example a pump or a pear. The user aspirates a small amount of composition to collect it, and when coming into contact with the eyelashes, reduces or even cancels the depression to allow the composition to be deposited.

Other systems comprising a vibrating application member may be suitable for the application of the powdery composition. An applicator having the shape of the eyelash fringe can be used to apply a large amount of powder in a single action. The application can be carried out without friction of the applicator on the fibers. It is possible to finalize the application by a third action, intended for example to fix or remove the excess powder composition. When the adhesive has a permanent character, the user can reapply when he wants the second composition, and without having to reapply the first composition.

In an exemplary implementation of the invention, it deals only the top of the eyelash fringe, or the bottom. This creates a striking optical effect when the person blinks. In another exemplary embodiment of the invention, only a limited number of eyelashes are treated within the fringe, for example one in two.

The user may only treat a portion of the eyelashes, for example only the tips or an intermediate portion. Applying the second composition can magnify these parts, or make them less visible. For example, we can treat the roots only, to make them less visible and magnify the tips. The first composition can be widely applied and the second composition applied in a pattern. A third transparent powder composition can then be applied to the first two compositions. The first composition may also be widely applied, and another transparent powder composition may be applied in a pattern. The second composition according to the invention is then applied, which relates only to the areas which have not received the transparent powder composition. By removing the surplus, we see the pattern appear.

It is also possible to apply the first composition in a pattern, then to apply the second composition in the same zone. The pattern is then seen during the removal of the particles not retained by the adhesive. The reflective particles of the second composition may themselves be adhesive. The first composition can generate particles, for example during drying. The first composition contains, for example, materials that can aggregate or crystallize, for example waxes. If necessary, in the first composition, agents providing a spreading effect, for example a low surface tension compound and / or a surface tension reducing agent, may be added so that, in a single contact, the first composition can spread over the entire surface of the eyelashes. The deposit of the second composition can be pressed to force it to take a flattened form.

Kits The adhesive composition, the powder composition and the applicator or applicators may be proposed to the user in the same package, in the form of a kit. The kit may comprise the same adhesive composition and at least two different powder compositions, for example comprising reflective platelet particles of different natures. These compositions can be packaged separately within the same package. The container comprising the adhesive composition and the one comprising the powdery composition can be joined, for example on one side or on their bottom. The kit may comprise means for removing a surplus of second composition, for example by suction, friction or magnetic attraction. EXAMPLES (all the proportions indicated are by weight) EXAMPLE 1 The following adhesive composition is applied to eyelashes: Gel-Tac 600D ** HEC Water 20 77 ** Adhesive particles in aqueous solution sold by Advanced Polymer International (Dry extract) 44 %). The adhesive composition is applied using a TeIescopic brand mascara brush from L'O12.EAL.

This composition forms a discontinuous film on the eyelashes. A powdery composition having the following formulation is applied: Colorona Glitter Bronze dyes (Merck company) 100 The application of the powdery composition is carried out for example using a foam tip, similar to that found in the palettes Eyes of the company 10 Lancôme. A particularly aesthetic particle deposit is obtained, as illustrated in FIG. 2. Comparative Example 2 The adhesive composition having the following formulation is applied to the eyelashes: Sorbitan Isosterate 4.2 Propyl parben 0.2 Parleamam 12 Polybutene M = 400001 oppanol B10 4 1sododecane 10 Water 70.7 Mg Sulfate 0.7 Methyl paraben 0 2

Talc 87% Then the powder composition having the following composition is applied:% Red iron oxide 5% Acetyl tributyl citrate These two compositions are taken from Example 1 of the application WO 05/02/05762. The effect shown in FIG. 3 is obtained. For comparison, the same adhesive composition is applied to the eyelashes but the second powdery composition is replaced by that of example 1.

The result shown in FIG. 4 is obtained. It can be seen that in the case of the pulverulent composition according to the prior art, the effect produced on the eyelashes is practically non-existent, whereas with the composition according to FIG. The following adhesive composition is applied to the eyelashes: Gel-Tac 600D ** HEC Water ** Adhesive particles in aqueous solution sold by Advanced Polymer International (dry extract 44%) . A pulverulent composition based on silica spheres is then applied, having the following composition:

Silica sphere SB150 from the company Miyoshi 100 As shown in FIG. 5, a virtually invisible deposit is obtained without great aesthetic interest. Comparative Example 4 The adhesive composition of Example 3 is applied to the eyelashes, followed by a talc-based powder composition having the following formulation: LUZENAC PHARMA M from Luzenac 100 The result illustrated in FIG. without great aesthetic interest. EXAMPLE 5 The adhesive composition of Example 3 was applied to the eyelashes and then a reflective particle composition (Metashine from NSG) having the following formulation: METASHINE ME 2040 PS from Nippon Sheet Glass The result illustrated in FIG. 7 is obtained. The invention is not limited to the examples described. The invention also makes it possible to treat other keratinous fibers, such as the hair, the hair, the eyebrows. Exceptional shine effects can be obtained by treating the hair or parts of the hair with a pigment whose color and / or or brilliance contrast with the original color. In particular, pigments whose color is lighter than that of the original hair can be used. Thanks to the invention, the effect is so visible that it is not necessary to treat a large number of hair to obtain a satisfactory effect.

Eyelashes, hair, hair or other fibers can also be treated to make them less visible, for example to remove hair and lint on the face, arms, legs, etc. It is also possible to treat the shaved areas to to disappear the hairs that repel. Example 6 The adhesive composition of Example 1 is applied to a hair. About one in every fifty is treated. We obtain a very aesthetic visual effect. Example 7 The pigments used in the second powdery composition are flesh-colored. The test is performed on the top of a forearm having a fairly visible hairiness (brown hair about 7mm-1cm long). We see disappearing hair. EXAMPLE 8 The same test as above is carried out, with the difference that the process is applied under armpits, shaved for 10 days.5 The hairs are no longer visible. The expression having one must be understood as being synonymous with having at least one.

Claims (15)

REVENDICATIONS1. A process for making up human keratin fibers, in particular eyelashes, comprising the steps of: 1) applying a first adhesive composition to said fibers, 2) applying to the fibers thus coated a second composition in the form of free powder, this second composition comprising reflective platelet particles, so as to form a deposit of said composition on the fibers. 2. A process for the makeup of human keratinous fibers, in particular eyelashes, comprising the steps of: 1) applying a first adhesive composition to said fibers, 2) applying to the fibers thus coated a second composition in the form of free powder, this second composition comprising reflective particles and the second composition having a reflectivity greater than or equal to 5, preferably greater than 7, more preferably 10. 3. A process for the makeup of human keratin fibers, in particular eyelashes, comprising the steps of: 1) applying a first adhesive composition to said fibers, 2) applying to the fibers thus coated a second composition in the form of free powder this composition comprising particles chosen from: ii. platelets made of a single optically homogeneous material, having at least two parallel faces, the platelets having a layered structure and having at least two layers of material having different optical properties, in particular pigments with a core / bark structure or pigments with a multilayer structure without a substrate, in particular aluminum or bronze, silica, synthetic mica, glass platelets, transparent effect pigments, in particular crystalline bismuth chloride oxide or polycrystalline titanium dioxide, formed platelets of natural or synthetic mica 30 covered with at least one metal oxide layer, chosen in particular from titanium oxides, especially TiO 2, iron in particular Fe 2 O 3, tin, chromium, debaryum sulfate, MgF 2, CrF 3, ZnS , ZnSe, SiO 2, Al 2 O 3, MgO, Y 2 O 3, SeO 3, SiO, HfO 2, ZrO 2, CeO 2, Nb 2 O 5, Ta 2 O 5, MoS 2, titanium mica coated with iron oxide, mica coated with bismuth chloride oxide th, titanium mica coated with chromium oxide, titanium mica coated with an organic dye, pearlescent pigments based on bismuth oxyclaloride, mica particles on the surface of which are superimposed at least two successive layers of metal oxide and / or organic coloring material, the reflective particles having a multilayer structure with at least one layer of uniform thickness, especially a reflective material, the reflective particles with multilayer structure and natural or synthetic substrate, especially synthetic substrate at least partially coated with at least one layer of a reflective material, in particular at least one metal or a metallic material, the particles comprising a silver-coated borosilicate substrate. 4. Method according to claim 1 or 2, the platelet particles being chosen from platelets in a single optically homogeneous material, having at least two parallel faces, the platelets having a layered structure and comprising at least two layers of material having different optical properties, in particular pigments with a core / shell structure or pigments with a multilayer structure without a substrate, in particular aluminum or bronze plates, silica, synthetic mica, glass, transparent effect pigments, especially crystalline bismuth chloride oxide or polycrystalline titanium dioxide, platelets formed from natural or synthetic mica coated with at least one metal oxide layer, chosen in particular from titanium oxides, in particular TiO 2 oxides, in particular iron Fe 2 O 3, tin, chromium, barium sulfate, MgF 2, CrF 3, ZnS, ZnSe, SiO 2, Al 2 O 3, MgO, Y 2 O 3, SeO 3, SiO, HfO 2, ZrO 2, CeO 2, Nb 2 O 5, Ta 2 O 5, MoS 2, l titanium mica coated with iron oxide, mica coated with bismuth chloride oxide, titanium mica coated with chromium oxide, titanium mica coated with an organic dye, pearlescent pigments based on oxychloride bismuth, the particles of miça on the surface of which are superimposed at least two successive layers of metal oxide and / or organic dyestuff, the reflective particles having a multilayer structure with at least one layer of uniform thickness, especially of a reflective material, the reflective particles having a multilayer structure and a natural or synthetic substrate, in particular a synthetic substrate at least partially coated with at least one layer of a reflective material, in particular at least one metal or a metallic material, the particles comprising a substrate borosilicate coated with silver. 5. Method according to any one of claims 1 to 4, the keratinous fibers being constituted by the eyelashes. 6. Method according to any one of the preceding claims, the particles having at least one planar face or radius of curvature greater than or equal to 60} .gym. 7. A method according to any one of the preceding claims, a larger dimension of said particles being between 5 and 100 q.m. 8. Method according to any one of the preceding claims, the second composition comprising at least 30% by weight of said particles, more preferably 50% by weight, more preferably 70% or 80% by weight of said reflective particles. 9. Method according to any one of the preceding claims, the form factor of said particles being greater than or equal to 5, better than or equal to 10, more preferably greater than or equal to 50. 10. Process according to any one of the preceding claims, the particles being monodisperse at plus or minus 30%. 11. Method according to any one of the preceding claims, the size of the particles being greater than or equal to 10 ~ {rm, better than or equal to 40 i.m. The method of any one of claims 1 to 11, wherein the adhesive composition comprises a pressure-sensitive adhesive. The method of any one of claims 1 to 12, wherein the first composition forms a discontinuous deposit when applied to the fibers. 14. Process according to any one of claims 1 to 13, the first composition comprising adhesive particles. 15. Makeup kit for keratinous fibers, in particular eyelashes, comprising, within the same package: a first adhesive composition, a second powder composition, comprising reflective platelet particles, a first applicator member allowing applying the adhesive composition to the keratinous fibers; a second applicator member making it possible to apply the powdery composition to the fibers coated with an adhesive composition.