LIQUID COMPOSITION FOR MAKE-UP USE, COMPRISING GONIOCHROMATIC

PIGMENTS AND WHITE PIGMENTS

TECHNICAL FIELD

The present invention relates to a liquid composition comprising goniochromatic pigments and white pigments, for a make-up for a keratinous substance such as skin, and a cosmetic process using the same.

BACKGROUND ART

Cosmetic liquid compositions for keratinous substances are used as make-up cosmetics such as liquid foundation. These compositions are used to provide keratinous substances with an attractive appearance. Therefore, for the cosmetic liquid compositions as make-up cosmetics, aesthetic effects, such as effects to provide natural finish, three-dimensional appearance effects, and good coverage to keratinous substances, preferably skin, in particular facial skin, are very important. In order to impart such aesthetic effects to cosmetic liquid compositions, use of goniochromatic pigments in the compositions has been proposed.

For example, JP-A-H11-322541 discloses a cosmetic composition comprising: a cosmetically acceptable medium; at least one first colorant; and at least one second colorant; wherein said first colorant is a goniochromatic colorant able to produce different colors depending on the light incidence and viewing angle, said goniochromatic colorant being a multilayer

interference structure, and said second colorant is a monochromatic colorant which produces one of the colors of said goniochromatic colorant.

In addition, US-B-5,008,l43 discloses a goniochromatic pigment exhibiting a multicolor effect consisting essentially of a transparent body, an interference pigment and an absorption colorant in which said absorption colorant is of a color which is different from the reflection color of the interference pigment or the complement thereof and in which the interference pigment and absorption colorant have the same order of magnitude of color intensity.

However, there is still a demand for cosmetic liquid products with improved cosmetic effects. In particular, there is a demand for cosmetic liquid products providing aesthetic effects such as effects to provide natural finish, three-dimensional appearance effects, and good coverage to keratinous substances, preferably skin, in particular facial skin.

DISCLOSURE OF INVENTION

An objective of the present invention is to provide a liquid composition for make-up use, which can provide improved aesthetic effects, such as effects to provide natural finish, a three-dimensional appearance effect, and enough coverage efficacy to keratinous substances, preferably skin, in particular facial skin.

The above objective of the present invention can be achieved by a liquid composition comprising:

(a) at least one goniochromatic pigment able to produce different colors depending on light incidence and viewing angle, wherein the goniochromatic pigment comprises an optical transmissive platelet, titanium dioxide, and a colorant and exhibits an interference color selected from pink, red, orange, yellow, and gold, in an amount of 3 to 30% by weight relative to the total weight of the composition; and

(b) at least one white pigment in an amount of 0.5 to 15% by weight relative to the total weight of the composition.

The colorant in the (a) goniochromatic pigment may be selected from an iron oxide, such as Fe ₂ 0 ₃ , carmine, and ferric ferrocyanide, and preferably selected from Fe ₂ 0 ₃ and carmine.

The optical transmissive platelet in the (a) goniochromatic pigment may be composed of mica, such as natural mica, synthetic mica, or glass, and preferably mica.

The interference color of the (a) goniochromatic pigment may selected from pink, red, orange, and yellow.

The content of the optical transmissive platelet in the (a) goniochromatic pigment may range from 20 to 85% by weight, preferably from 30 to 75% by weight, and more preferably from 40 to 70% by weight, relative to the total weight of the goniochromatic pigment.

The content of titanium dioxide in the (a) goniochromatic pigment may range from 10 to 70% by weight, preferably from 20 to 60% by weight, and more preferably from 30 to 55% by weight, relative to the total weight of the goniochromatic pigment.

The content of the colorant in the (a) goniochromatic pigment may range from 0.5 to 15% by weight, preferably from 1 to 10% by weight, and more preferably from 2 to 7% by weight, relative to the total weight of the goniochromatic pigment.

The (b) white pigment may be selected from a metal oxide, such as titanium dioxide, zirconium dioxide, cerium dioxide, zinc oxide, boron nitride, barium sulfate, and coated pigments such as coated mica, coated sericite, coated fluorphlogopite, coated kaolin, and mixtures thereof.

The (b) white pigment may preferably be titanium dioxide.

The amount of the (a) goniochromatic pigment may range from 5 to 25% by weight, and preferably from 10 to 20% by weight, relative to the total weight of the composition.

The amount of the (b) white pigment may range from 1 to 10% by weight, preferably from 3 to 8% by weight, relative to the total weight of the composition.

In one preferred aspect of the present invention, the composition is for use as a cosmetic liquid composition, preferably a make-up liquid composition, in particular a liquid foundation, make-up base, or a skincare cream.

In another preferred aspect of the present invention, the composition may be in the form of a W/O or O/W emulsion.

The composition may comprise water in an amount ranging from 1 to 50% by weight, preferably from 2 to 40% by weight, more preferably from 5 to 35% by weight, and even more preferably from 10 to 30% by weight, relative to the total weight of the composition. The present invention also relates to a cosmetic process for make-up for keratinous substances, preferably skin, comprising a step of applying onto the keratinous substances the composition according to the present invention.

BEST MODE FOR CARRYING OUT THE INVENTION

After diligent research, the inventors have surprisingly found that a combination of the (a) specific goniochromatic pigment in an amount of 3 to 30% by weight relative to the total weight of the composition and the (b) white pigments in an amount of 0.5 to 15% by weight relative to the total weight of the composition can provide an improved three-dimensional appearance and natural finish without metallic aspect to keratinous substances, in particular the face, while maintaining a good coverage to cover skin imperfections, such as blemishes, wrinkles, and pores, and thus they have completed the present invention.

Thus, the liquid composition according to the present invention comprises:

(a) at least one goniochromatic pigment able to produce different colors depending on light incidence and viewing angle, wherein the goniochromatic pigment comprises an optical transmissive platelet, titanium dioxide, and a colorant and exhibits an interference color selected from pink, red, orange, yellow, and gold, in an amount of 3 to 30% by weight relative to the total weight of the composition; and

(b) at least one white pigment in an amount of 0.5 to 15% by weight relative to the total weight of the composition.

Hereafter, the composition according to the present invention will be described in a detailed manner.

[Composition]

The liquid composition according to the present invention comprises (a) at least one goniochromatic pigment able to produce different colors depending on light incidence and viewing angle, wherein the goniochromatic pigment comprises an optical transmissive platelet, titanium dioxide, and a colorant and exhibits an interference color selected from pink, red, orange, yellow, and gold, in an amount of 3 to 30% by weight relative to the total weight of the composition; and (b) at least one white pigment in an amount of 0.5 to 15% by weight relative to the total weight of the composition.

(Goniochromatic Pigment)

The composition according to the present invention comprises (a) at least one goniochromatic pigment. Two or more (a) goniochromatic pigments may be used in combination. Thus, a single type of goniochromatic pigment or a combination of different types of goniochromatic pigments may be used.

The term“pigments” here should be understood as meaning white or coloured, mineral or organic particles that are insoluble in a medium in the composition.

The term“goniochromatic pigment” here can be understood to mean a pigment exhibiting a goniochromatic property producing different colors depending on the incidence of light and the angle of observation. Therefore, the (a) goniochromatic pigment is able to produce different colors depending on light incidence and viewing angle.

Goniochromatic pigments have in general an interferential multilayer structure composed of an optical transmissive platelet and a coating of interference pigments on the platelet. The multilayers may make it possible to allow the creation of changes in color, hue and lightness by interference of light rays, which diffract and diffuse differently according to the layers.

In addition, goniochromatic pigments can include at least one absorption colorant in the coating. In this case, goniochromatic pigments can exhibit two distinct colors: an

“absorption color” which can be produced from the absorption colorant and a“reflection color” which can be produced by reflection from an interference pigment, depending on the angle of viewing. At the normal angle of viewing, the reflection color of the interference pigment is seen. At the diffuse angle or the grazing angle, the reflection color of the interference pigment is no longer observed and the absorption color is now seen. Thus by changing the angle of viewing from the normal angle to a grazing angle, the color changes from the reflection color by the interference to the absorption color by the absorption pigment.

The (a) goniochromatic pigment of the present invention comprises an optically transmissive platelet, titanium dioxide as an interference pigment, and a colorant as an absorption pigment.

The material of the optical transmissive platelet is not limited as long as it is optical transmissive. Examples of the material of the optical transmissive platelet include mica, such as natural mica and synthetic mica, and glass. Preferably, the optical transmissive platelet of the goniochromatic pigment is made of mica, such as natural mica and synthetic mica.

In one embodiment of the present invention, the coating of interference pigments of titanium dioxide on the optical transmissive platelet of the (a) goniochromatic pigment may have a thickness ranging from 10 to 300 nm, preferably 20 to 200 nm, and more preferably, 30 to 150 nm.

Examples of the colorant include, but are not limited to, an iron oxide, such as Fe ₂ 0 ₃ , carmine, ferric ferrocyanide Fe ₄ [Fe(CN) ₆ ]3, and mixtures thereof. Preferably, the colorant in the goniochromatic pigment is selected from Fe ₂ 0 ₃ and carmine. The“colorant” here does not include titanium dioxide which is used as an interference pigment in the (a) goniochromatic pigment of the present invention.

The (a) goniochromatic pigment of the present invention exhibits a reflection color selected from pink, red, orange, yellow, and gold. Preferably, the reflection color is selected from pink, red, orange, and yellow. The absorption color of the (a) goniochromatic pigment is not particularly limited, but is preferably selected from gold, red, orange, yellow and blue, more preferably gold, orange, and yellow.

The (a) goniochromatic pigment may have an average particle size of 0.5 pm or more, preferably 1 pm or more, and more preferably 5 pm or more. The (a) goniochromatic pigment may have an average particle size of 200 pm or less, preferably 150 pm or less, and more preferably 100 pm or less, and in particular 50 pm or less. The term“average particle size” used herein represents a number-average size mean diameter which is given by the statistical particle size distribution to half of the population, referred to as D50. For example, the number-average size mean diameter can be measured by a laser diffraction particle size distribution analyzer, such as Mastersizer from Malvern Corp.

The content of the optical transmissive platelet in the (a) goniochromatic pigment is not limited, but may be 20% by weight or more, preferably 30% by weight or more, and more preferably 40% by weight or more, relative to the total weight of the goniochromatic pigment. The upper limit of the content of the optical transmissive platelet in the (a) goniochromatic pigment is not limited, but may be 85% by weight or less, preferably 75% by weight or less, and more preferably from 70% by weight or less relative to the total weight of the

goniochromatic pigment.

Therefore, the content of the optical transmissive platelet in the (a) goniochromatic pigment can range from 20 to 85% by weight, preferably from 30 to 75% by weight, and more preferably from 40 to 70% by weight, relative to the total weight of the goniochromatic pigment.

The content of titanium dioxide in the (a) goniochromatic pigment is not limited, but may be 10% by weight or more, preferably 20% by weight or more, and more preferably 30% by weight or more, relative to the total weight of the goniochromatic pigment. The upper limit of the content of the titanium dioxide in the (a) goniochromatic pigment is not limited, but may be 70% by weight or less, preferably 60% by weight or less, and more preferably 55% by weight or less, relative to the total weight of the goniochromatic pigment.

Therefore, the content of titanium dioxide in the (a) goniochromatic pigment can range from 10 to 70% by weight, preferably from 20 to 60% by weight, and more preferably from 30 to 55% by weight, relative to the total weight of the goniochromatic pigment.

The content of the colorant in the (a) goniochromatic pigment is not limited, but may be 0.5% by weight or more, preferably 1 % by weight or more, and more preferably 2% by weight or more, relative to the total weight of the goniochromatic pigment. The upper limit of the content of the colorant in the (a) goniochromatic pigment is not limited, but may be 15% by weight or less, preferably 10% by weight or less, and more preferably 7% by weight or less, relative to the total weight of the goniochromatic pigment.

Therefore, the content of the colorant in the (a) goniochromatic pigment can range from 0.5 to 15% by weight, preferably from 1 to 10% by weight, and more preferably from 2 to 7% by weight, relative to the total weight of the goniochromatic pigment.

The content of the (a) goniochromatic pigment in the composition according to the present invention is from 3 to 30% by weight relative to the total weight of the composition.

Preferably, the content the (a) goniochromatic pigment in the composition is 5% by weight or more, and more preferably 10% by weight or more, relative to the total weight of the composition. Preferably, the content of the (a) goniochromatic pigment in the composition is 25% by weight or less, and more preferably 20% by weight or less, relative to the total weight of the composition. Therefore, the content of the (a) goniochromatic pigment in the composition according to the present invention may be preferably from 5 to 25% by weight, and more preferably from 10 to 20% by weight, relative to the total weight of the

composition.

(White Pigment)

The composition according to the present invention comprises (b) at least one white pigment. Two or more (b) white pigments may be used in combination. Thus, a single type of white pigment or a combination of different types of white pigments may be used. The (b) white pigment used in the composition according to the present invention may denote a mineral or organic particle which is white, coated or uncoated, spherical or non-spherical, and porous or non- porous.

The (b) white pigment may be chosen from, but is not limited to, metal oxide, such as titanium dioxide, zirconium dioxide, cerium dioxide, zinc oxide, boron nitride, barium sulfate, and coated pigments such as coated mica, coated sericite, coated fluorphlogopite, coated kaolin, and mixtures thereof. The coating layers of the pigments are not particularly limited as long as they show a white color, but may be a metal oxide, such as titanium dioxide, tin oxide, and the like.

Preferentially, the (b) white pigment is chosen from a metal oxide, boron nitride, and metal oxide-coated pigments. In particular, the (b) white pigment is chosen from titanium dioxide, boron nitride, and titanium dioxide-coated pigments, such as titanium dioxide-coated mica and titanium dioxide-coated fluorphlogopite.

In one preferred embodiment of the present invention, the (b) white pigment is selected from metal oxides, and more preferably the (b) white pigment is titanium dioxide.

In one preferable embodiment of the present invention the (b) white pigment has a refractive index of 1.6 or more, preferably 2.0 or more, and more preferably 2.3 or more.

The average particle size of the (b) white pigment is not particularly limited, but may range from 0.01 pm to 50 pm, and preferably from 0.05 pm to 30 pm. The average particle size of non-coated pigments, such as metal oxide, boron nitride and barium sulfate may range from 0.05 pm to 0.5 pm, and preferably from 0.1 pm to 0.3 pm. The average particle size of the coated pigment may range from 1 pm to 50 pm, preferably from 10 pm to 30 pm.

Examples of the (b) white pigment which is commercially available include:

- titanium dioxide-coated mica sold under the name of Timica Terra White® by BASF;

- boron nitride sold under the name of Ronaflair Boroneige® by Merck and TRES BN® Cosmetic Powder Grade PUHP3002 by Saint-Gobain; and

- synthetic fluorphlogopite coated with titanium dioxide and tin oxide sold under the name of SynCrystal Soft Silver® by Eckart.

The content of the (b) white pigment in the composition according to the present invention is from 0.5 to 15% by weight relative to the total weight of the composition. Preferably, the content of the (b) white pigment in the composition is 1% by weight or more, and more preferably 3% by weight or more, relative to the total weight of the composition. Preferably, the content of the (b) white pigment in the composition is 10% by weight or less, and more preferably 8% by weight or less, relative to the total weight of the composition. Therefore, the content of the (b) white pigment in the composition according to the present invention may preferably be from 1 to 10% by weight, and more preferably from 3 to 8% by weight, relative to the total weight of the composition.

(Other Ingredients)

- Filler

The composition according to the present invention may preferably include at least one filler. Preferably, the composition according to the present invention may include one or more organic and/or inorganic fillers, in addition to the (a) goniochromatic pigment and the (b) white pigment.

The term“fillers” should be understood as meaning mineral or synthetic particles of any shape which are insoluble in the medium of the composition.

The fillers may be of any shape: platelet-shaped, spherical or oblong, irrespective of the crystallographic form (for example lamellar, cubic, hexagonal, orthorhombic, etc.).

As the inorganic fillers, mention may be made of talc, mica, silica, such as porous silica, amorphous hollow silica powder, silica silylate powder, magnesium aluminium silicate, trimethyl siloxysilicate, kaolin, hectorite, such as organic modified hectorite, in particular bentone gel, calcium carbonate, magnesium hydrogen carbonate, hydroxyapatite,

fluorphlogopite, sericite, calcinated talc, calcinated mica, calcinated sericite, synthetic mica, lauroyl lysine, metal soap, bismuth oxychloride, barium sulfate, magnesium carbonate, and mixtures thereof, optionally hydrophilic- or hydrophobic-treated.

As the organic fillers, mention may be made of (meth)acrylic or (meth)acrylate powders, for example, polymethylmethacrylate powders; polyacrylonitrile powders; organopolysiloxane powders, polyamide powders, such as nylon-6 powder and nylon- 12, poly-[3-alanine powders and polyethylene powders, polytetrafluoroethylene powders, lauroyllysine, rice or com starch, tetrafluoroethylene polymer powders, hollow polymer microspheres, for example comprising an (alkyl)acrylate, metal soaps derived from organic carboxylic acids containing from 8 to 22 carbon atoms, for example zinc stearate, magnesium stearate, lithium stearate, zinc laurate, magnesium myristate, silicone powder, such as silicone resin powder,

polyorganosilsesquioxane powder, dimethicone crosspolymer powder, and a

polymethylsilsesquioxane powder, polyurethane powders, camauba microwaxes, synthetic microwaxes, and mixtures thereof.

The filler may be present in a content ranging from 0.1% to 40% by weight, preferably from 1% to 30% by weight and more preferably from 5% to 20% by weight, relative to the total weight of the composition.

- UV Filter

The composition according to the present invention may comprise at least one hydrophilic or hydrophobic UV filter, preferably a hydrophobic UV filter.

The hydrophobic filter usable in the present invention may include aminobenzophenone compounds; dibenzoylmethane compounds; anthranilic acid compounds; 4,4-diarylbutadiene compounds; triazine compounds; para-aminobenzoic acid compounds; salicylic compounds; cinnamate compounds, such as ethylhexyl methoxycinnamate, marketed under the name “UVINUL MC 80” by BASF; b,b-diphenylacrylate compounds; benzylidenecamphor compounds; phenylbenzimidazole compounds; imidazoline compounds; benzalmalonate compounds; merocyanine compounds; benzophenone compounds; benzotriazole compounds; bis-resorcinyl triazines; and benzoxazole compounds.

The hydrophilic UV filter usable in the present invention may include p-aminobenzoic (PABA) derivative; phenylbenzimidazole sulfonic acid and salts thereof; ferulic acid and salts thereof; salicylic acid and salts thereof; DEA methoxycinnamate and salts thereof;

benzylidene camphor sulfonic acid and salts thereof; camphor benzalkonium methosulfate and salts thereof.

The amount of the UV filter(s) in the composition may be from 0.1 to 20% by weight, preferably from 0.5 to 15% by weight, and more preferably from 1 to 10% by weight, relative to the total weight of the composition.

- Colouring Agent(s)

The compositions according to the invention may preferably comprise one or more colouring agents, which may be chosen from pigments, which are different from the (a) goniochromatic pigment and the (b) white pigment, such as mineral pigments, lakes, and nacres. Especially, the composition includes nacres as the colouring agent in addition to the (a) goniochromatic pigment and the (b) white pigment.

The mineral pigments, which are different from the (a) goniochromatic pigment and the (b) white pigment, may be chosen from, for example, iron oxide, manganese violet, Prussian blue, ultramarine blue and ferric blue, and mixtures thereof.

The lakes, which are also known as organic pigments, may be chosen from cochineal carmine, azo dyes, anthraquinone dyes, indigoid dyes, xanthene dyes, pyrene dyes, quinoline dyes, triphenylmethane dyes or fluoran dyes, insoluble sodium, potassium, calcium, barium, aluminium, zirconium, strontium or titanium salts of acidic dyes.

Nacres that may be mentioned include nacreous pigments such as 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 also nacreous pigments based on bismuth oxychloride. Regarding commercial products of the nacres, mention may be made of beige nacre sold under the name of Colorona® Oriental Beige by Merck. The colouring agents may be present in a content ranging from 0.1% to 20% by weight, preferably from 1% to 15% by weight and more preferably from 2 to 10% by weight, relative to the total weight of the composition.

- Oil

The composition according to the present invention may preferably include at least one oil.

The oil can be volatile or non-volatile. Preferably, the oil may be a non-volatile oil.

The oil may be selected from:

- hydrocarbon-based oils of animal origin, such as perhydrosqualene,

- hydrocarbon-based oils of plant origin, such as phytostearyl esters, such as phytostearyl oleate, phytostearyl isostearate and lauroyl/octyldodecyl/phytostearyl glutamate, triglycerides formed from fatty acid esters of glycerol, in particular in which the fatty acids may have chain lengths ranging from C ₄ to C ₃₆ and especially from Ci ₈ to C ₃₆ , these oils possibly being linear or branched, and saturated or unsaturated; these oils may especially be heptanoic or octanoic triglycerides, shea oil, alfalfa oil, poppy oil, winter squash oil, millet oil, barley oil, quinoa oil, rye oil, candlenut oil, passionflower oil, shea butter, aloe vera oil, sweet almond oil, peach stone oil, groundnut oil, argan oil, avocado oil, baobab oil, borage oil, broccoli oil, calendula oil, camelina oil, canola oil, carrot oil, safflower oil, flax oil, rapeseed oil, cottonseed oil, coconut oil, marrow seed oil, wheatgerm oil, jojoba oil, lily oil, macadamia oil, com oil, meadowfoam oil, monoi oil, hazelnut oil, apricot kernel oil, walnut oil, olive oil, evening primrose oil, palm oil, blackcurrant seed oil, kiwi seed oil, grapeseed oil, pistachio oil, winter squash oil, pumpkin oil, quinoa oil, musk rose oil, sesame oil, soybean oil, sunflower oil, castor oil and watermelon oil, and mixtures thereof, or alternatively caprylic/capric acid triglycerides,

- linear or branched hydrocarbons of mineral or synthetic origin, such as liquid paraffins and derivatives thereof, petroleum jelly, mineral oil, polydecenes, polybutenes, hydrogenated polyisobutene such as Parleam, and squalane;

- synthetic ethers containing from 10 to 40 carbon atoms;

- synthetic esters, for instance oils of formula RiCOOR ₂ , in which Ri represents a linear or branched fatty acid residue containing from 1 to 40 carbon atoms, and R ₂ represents a hydrocarbon-based chain that is especially branched, containing from 1 to 40 carbon atoms provided that Ri + R ₂ > 10. The esters may be chosen especially from fatty acid esters of alcohols, for example, cetyl esters, in particular, cetostearyl octanoate, isopropyl alcohol esters, such as isopropyl myristate, isopropyl palmitate, ethyl palmitate, 2-ethylhexyl palmitate, isopropyl stearate, isopropyl isostearate, isostearyl isostearate, octyl stearate, hydroxylated esters, for instance isostearyl lactate, octyl hydroxystearate, diisopropyl adipate, heptanoates, and especially isostearyl heptanoate, alcohol or polyalcohol octanoates, decanoates or ricinoleates, for instance propylene glycol dioctanoate, cetyl octanoate, tridecyl octanoate, 2-ethylhexyl 4-diheptanoate, 2-ethylhexyl palmitate, alkyl benzoates, polyethylene glycol diheptanoate, propylene glycol 2-diethylhexanoate, and mixtures thereof, Ci ₂ -Ci ₅ alcohol benzoates, hexyl laurate, neopentanoic acid esters, for instance isodecyl

neopentanoate, isotridecyl neopentanoate, isostearyl neopentanoate, octyldodecyl

neopentanoate, isononanoic acid esters, for instance isononyl isononanoate, isotridecyl isononanoate, octyl isononanoate, hydroxylated esters, for instance isostearyl lactate and diisostearyl malate. Mention may be made of esters of C ₄ -C ₂₂ dicarboxylic or tricarboxylic acids and of Ci-C ₂₂ alcohols, such as diethyl sebacate; isopropyl lauroyl sarcosinate;

diisopropyl sebacate; bis(2-ethylhexyl) sebacate; diisopropyl adipate; di-n-propyl adipate; dioctyl adipate; bis(2-ethylhexyl) adipate; diisostearyl adipate; bis(2-ethylhexyl) maleate; triisopropyl citrate; triisocetyl citrate; triisostearyl citrate; glyceryl trilactate; glyceryl trioctanoate; trioctyldodecyl citrate; trioleyl citrate; neopentyl glycol diheptanoate; diethylene glycol diisononanoate;

- silicone oils, such as linear organopolysiloxanes such as dimethylpolysiloxane (dimethicone), methylphenylpolysiloxane, methylhydrogenpolysiloxane, and the like; cyclic

organopolysiloxanes such as cyclohexasiloxane, octamethylcyclotetrasiloxane,

decamethylcyclopentasiloxane, dodecamethylcyclohexasiloxane,

- fluoro oils that are optionally partially hydrocarbon-based and/or silicone-based, for instance fluorosilicone oils, fluoropolyethers and fluorosilicones;

- fatty alcohols that are saturated or unsaturated, linear or branched, and contain 6 to 30 carbon atoms and more particularly from 8 to 30 carbon atoms: mention may be made of cetyl alcohol, stearyl alcohol and a mixture thereof (cetylstearyl alcohol), octyldodecanol,

2-butyloctanol, 2-hexyldecanol, 2-undecylpentadecanol, oleyl alcohol or linoleyl alcohol; and

- mixtures thereof.

The oil may be present in a content ranging from 1 % to 40% by weight, preferably from 2% to 30% by weight, and more preferably from 5% to 20% by weight relative to the total weight of the composition.

- Surfactant

The composition according to the present invention may comprise at least one surfactant chosen from amphoteric, anionic, cationic, or nonionic surfactants, used alone or as a mixture. Preferably, the composition comprises at least one nonionic surfactant.

Examples of anionic surfactants usable in the compositions of the invention may include alkyl sulfates, alkyl ether sulfates, alkyl sulfonates, alkyl ether sulfonates, sulfate esters of an alkylphenoxy polyoxyethylene ethanol, alpha-olefin sulfonates, beta alkyloxy alkene sulfonates, alkyl arylsulfonates, alkyl carbonates, succinamates, sulfosuccinates, sarcosinates, octoxynol or nonoxynol phosphates, taurates, fatty taurides, sulfated monoglycerides, fatty acid amino polyoxyethylene sulfates, isethionates, alkyl benzene sulfonic acids,

polyoxyethylene alkyl ether sulfuric acids, polyoxyethylene alkyl ether carboxylic acids, and polyoxyethylene alkyl amide ether carboxylic acids, and salts thereof.

Examples of nonionic surfactants usable in the compositions of the invention may include polyethoxylated fatty alcohols or polyglycerolated fatty alcohols, such as the adducts of ethylene oxide with lauryl alcohol, especially those containing from 9 to 50 oxyethylene units (Laureth-9 to Laureth-50 as the INCI names), in particular Laureth-9; esters of polyols and of a fatty acid possessing a saturated or unsaturated chain comprising, for example, from 8 to 24 carbon atoms, and their oxyalkylenated derivatives, that is to say comprising oxyethylene and/or oxypropylene units, such as esters of glycerol and of a C ₈ -C ₂₄ fatty acid, and their oxyalkylenated derivatives, in particular polyoxyethylenated glyceryl stearate (mono-, di- and/or tristearate), for examples PEG-20 glyceryl triisostearate; esters of sugar and of a C ₈ -C ₂₄ fatty acid and their oxyalkylenated derivatives, such as polyethoxylated sorbitol esters of C ₈ -C ₂₄ fatty acids, in particular Polysorbate 80, such as the product marketed under the name“TWEEN 80” by Croda; ethers of a sugar and of C ₈ -C ₂₄ fatty alcohols, such as caprylyl/capryl glucoside; polyoxyethylene alkyl ethers; polyoxyethylene oxypropylene alkyl ethers; fatty acid alkanol amides; alkyl amine oxides; alkyl polyglycosides and silicone surfactants, such as polydimethylsiloxane containing oxyethylene groups and/or

oxypropylene groups, for example, PEG- 10 dimethicone, bis-PEG/PPG-l4/14 dimethicone, bis-PEG/PPG-20/20 dimethicone, and PEG/PPG-20/6 dimethicone.

Examples of amphoteric surfactants usable in the compositions of the invention may include alkanoyl amide propyl-N,N-dimethyl glycine betaines, alkanoyl amide

propyl-N,N-dimethyl-2-hydroxypropyl sulfobetaines, alkyl-N,N-dimethyl glycine betaines, alkanoyl amide propyl-N,N-dimethyl-propyl sulfobetaines,

lauryl-N,N-dimethyl-2-hydroxypropyl sulfobetaines, and salts thereof.

Examples of cationic surfactants usable in the compositions of the invention may include C ₈ -C ₂ 4 long-chain di-alkyl dimethyl ammonium salts, long-chain mono-alkyl monobenzyl dimethyl ammonium salts and long-chain mono-alkyl trimethyl ammonium salts, all of which may have amide or ester linkages therein, and the counter ions are preferably halogen atoms such as chlorine and bromine atoms, sulfates, and alkyl group-containing sulfate residues such as methyl- and ethyl- sulfuric acid, and salts thereof. Cationic surfactants of amine type include long-chain di-alkyl monomethyl amine salts with a long-chain C ₈ -C ₂₄ alkyl group which may have an amide or ester linkage therein, preferably in the form of hydrochlorides, sulfates or phosphates, and salts thereof.

The amount of the surfactant in the composition may be from 0.1 to 30% by weight, preferably from 0.5 to 20% by weight, and more preferably from 1 to 10% by weight, relative to the total weight of the composition.

- Hydrophilic Organic Solvent

The composition according to the present invention may comprise at least one cosmetically acceptable hydrophilic organic solvent. The hydrophilic solvent usable in the composition according to the present invention may include, for example, substantially linear or branched lower mono-alcohols having from 1 to 8 carbon atoms, such as ethanol, propanol, butanol, isopropanol, and isobutanol; aromatic alcohols, such asbenzyl alcohol and phenylethyl alcohol; polyols or polyol ethers, such as propylene glycol, dipropylene glycol, isoprene glycol, butylene glycol, glycerol, sorbitol, ethylene glycol monomethyl, monoethyl and monobutyl ethers, propylene glycol ethers, such as propylene glycol monomethylether, diethylene glycol alkyl ethers, such as diethylene glycol monoethylether or monobutylether; polyethylene glycols and their derivatives.

The amount of the hydrophilic organic solvent(s) in the composition may be from 0.1 to 30% by weight, preferably from 1 to 20% by weight, and more preferably from 2 to 15% by weight, relative to the total weight of the composition.

- Water

The composition according to the present invention can comprise water.

The amount of water is not limited, and may be from 1 to 50% by weight, preferably from 2 to 40% by weight, more preferably from 5 to 35% by weight, and even more preferably from 10 to 30% by weight, relative to the total weight of the composition.

- Additives

The composition according to the present invention may comprise additives as long as they do not impair the effects of the present invention and they are acceptable in cosmetic use. The additives may be selected from anionic, cationic, nonionic or amphoteric polymers; natural or synthetic thickeners; gelling agents; natural extracts derived from animals or vegetables; waxes; preservatives, such as sodium dehydroacetate, phenoxyethanol, and chlorphenesin; co-preservatives, such as decylene glycol, ethylhexyl glycerin, and caprylyl glycol;

bactericides; vitamins or provitamins; fragrances; stabilizers, such as magnesium sulfate, and mixtures thereof.

The amount of the additives included in the composition according to the present invention is not limited, but may be from 0.01 to 30% by weight relative to the total weight of the composition according to the present invention.

The composition of the present invention is a liquid cosmetic composition for a keratinous substance, such as skin, for example, of the face, neck and body, in particular facial skin, and more preferably a skin cosmetic make-up composition. The composition according to the present invention can be provided in forms such as an emulsion (O/W or W/O form), an aqueous gel, an aqueous solution, a lotion, a milky lotion, a cream, a foam, a paste, a serum or the like. It is preferable that the composition according to the present invention be in the form of an O/W or W/O emulsion.

The composition according to the present invention can provide an improved natural and three-dimensional appearance to keratinous substances, in particular the face, while maintaining a good coverage to cover skin imperfections, such as blemishes, wrinkles, and pores. Therefore, the composition according to the present invention can provide a natural appearance of smaller and more defined facial features.

It should be noted that the use of the composition according to the present invention can create a three-dimensional appearance or volume effect on the face, and thus it is not required to use different types of cosmetics which have been conventionally required to create the three-dimensional appearance. In addition, the use of the present invention does not require a high level of skill for consumers to create the three-dimensional appearance on their faces. Therefore, the composition according to the present invention is very suitable for use as a liquid foundation, a make-up base, and skincare cream.

[Cosmetic Process]

The present invention also relates to a cosmetic process including a step of applying to keratinous substances, such as skin, preferably facial skin, the composition according to the present invention. Thus, the composition according to the present invention can be used for a cosmetic process for the skin.

The composition used according to the present invention is preferably intended to be used as a leave-on type cosmetic composition. The term "leave-on" means a composition that is not intended to be washed out or removed immediately after application.

Since the composition according to the present invention can provide an improved natural and three-dimensional appearance to keratinous substances, in particular the face, while maintaining a good coverage efficacy, the cosmetic process according to the present invention can provide keratinous substances, in particular the face with an attractive appearance of a natural look, and smaller and more defined features. The present invention also relates to a use of a combination of the (a) goniochromatic pigment and the (b) white pigment as a make-up active in a cosmetic liquid composition, such as a liquid foundation, a make-up base, and skincare cream.

EXAMPLES

The present invention will be described in a more detailed manner by way of examples.

However, these examples should not be construed as limiting the scope of the present invention.

< Example 1 and Comparative Examples 1 to 4 >

[Composition]

The compositions according to Example 1 and Comparative Examples 1 to 4 were prepared by mixing the ingredients listed in Table 1. First, the ingredients of the oil phase and powder ingredients were mixed to disperse pigments and fillers inside the oil phase. The ingredients in the water phase were then added to the mixture to obtain an emulsion. Finally, the goniochromatic pigments were added and then mixed to obtain emulsion samples.

Regarding Comparative Example 4, talc was added together with the goniochromatic pigment. The compositions are shown in Table 1. In Table 1 , all components are based on“% by weight” as active raw materials.

[Evaluation]

The compositions according to Example 1 and Comparative Examples 1 to 4 were evaluated with respect to three key properties of a three-dimensional appearance effect, natural finish, and a coverage efficacy by 7 monitors. Each of the compositions according to Example 1 and Comparative Examples 1 to 4 was applied on the monitors’ faces by the monitors themselves and the monitors evaluated if they were able to perceive a three-dimensional appearance effect, enough coverage, and natural finish after application. Table 1 shows how many people perceived each effect.

+++ : 6-7 persons perceived the effect

++ : 4-5 persons perceived the effect

+ : 2-3 persons perceived the effect

: 0-1 persons perceived the effect

Table 1

- Goniochromatic Pigment (a): Product name: Duocrome ® YR 422C by BASF; this pigment comprises 52.5% by weight of mica, 43.5% by weight of titanium dioxide, and 4% by weight of Fe ₂ 0 ₃ . Interference color is red.

- Goniochromatic Pigment (b): Product name: Sicopearl ®; this pigment comprises 52.5% by weight of silica, 32.5% by weight of aluminum powder, and 15% by weight of iron oxides. Interference color is red.

- Goniochromatic Pigment (c): Product name: Relief Color ® Beige; this pigment comprises 75% by weight of mica, 15% by weight of titanium dioxide, 5% by weight of iron oxides, and 5% by weight of silica. Interference color is silver.

- Goniochromatic Pigment (d): Product name: Relief Color ® Pink; this pigment comprises 83% by weight of mica, 16% by weight of titanium dioxide, and 1% by weight of iron oxide.

Interference color is silver.

As can be seen from the evaluation results in Table 1 , the composition according to Example 1 including a combination of the goniochromatic pigment of the present invention and the white pigment in a specific amount exhibited a superior three-dimensional appearance effect, natural finish, and enough coverage efficacy.

On the other hand, the compositions according to Comparative Examples 1 to 3, which do not comprise the goniochromatic pigment of the present invention, could not provide enough natural finish or three-dimensional appearance effect. The composition according to

Comparative Example 4, which includes the goniochromatic pigment of the present invention but in a small amount, could not provide enough three-dimensional appearance effect and coverage efficacy. Therefore, it can be concluded that the liquid cosmetic composition according to the present invention is very preferable for use as a make-up cosmetic, such as a liquid foundation, make-up base, and skincare cream.