JP2002146237A - Novel color iris foil gloss pigment and cosmetic comprising the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain an iris foil gloss pigment mainly imparting a three- dimensional effect to a human face, clarifying an outline of the face and feature, and being possible to realize a novel cosmetic finish, and to develop a cosmetic comprising the same. SOLUTION: The color iris foil gloss pigment is obtained by applying an optical property (a refractive index and mixing theory), coating titanium dioxide on the surface of silicon dioxide (silica) of a flat shape (a plate shape), and further coating and treating a color pigment or a hydroxide, an oxide, or the like, of a low refractive index on the surface of the resulting product. The cosmetic is obtained by combining one or two kinds of the pigments and compounding proper quantities thereof.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

This invention relates to a novel "iris foil pigment".
The present invention relates to a cosmetic composition which imparts a three-dimensional cosmetic finish by being applied to skin, hair, nails and the like. The invention also relates to those "iris foil pigments" and a method for producing the same.

More specifically, silica iris foil substantially coated with titanium oxide (hereinafter abbreviated as "titanium silica iris foil")
To obtain an "iris foil pigment" in which a colored pigment or a white hydroxide and / or a white oxide and a colored pigment are fixed on the surface. By applying to the skin or the like a cosmetic prepared by combining these pigments singly or in combination, a color effect with high transparency and an anisotropic property (an effect in which a hue changes depending on the viewing angle) is provided. Things. In other words, a three-dimensional effect is given to these cosmetic application sites,
The present invention relates to a cosmetic that is excellent in the effect of creating a partial facial expression by showing the face lines and nose muscles clearly and by making the contours of the lips, around the eyes, nails, etc. slim.

[0003]

2. Description of the Related Art In recent years, consumers' needs for cosmetics have been diversified, and there has been a demand for cosmetics having a more individualistic effect than before. In order to satisfy such demands, mica titanium-based pearlescent pigments coated with titanium oxide using muscovite as a base material have been developed. (See, for example, JP-A-09-48930) These have pearl luster and some kind of interference color, but the appearance color is close to white, and no vivid appearance color has been obtained. . Therefore, in addition to the mica titanium-based pearlescent pigment, a colored pigment such as iron oxide, navy blue, chromium oxide, or carbon black has been blended. In these combination combinations, color separation is apt to occur in the cosmetic, not only impairing the makeup effect, but also with these mica titanium-based pearlescent pigments, a specific interference color can be obtained at a regular reflection angle, but at other angles. When viewed from above, it looks white, has no gradation effect (color change), and cannot expect a three-dimensional effect.

[0004] Furthermore, the texture of the face is changed by cosmetics,
In order to give a three-dimensional effect, apply a foundation of different brightness to different parts of the face, add shadows, put a black to brown shade on a specific part of the face like a nose shadow or a method to show the face line clearly Methods such as showing the nose muscle clearly have been used. However, these methods have to be used in combination with several make-up ingredients, which take a long time to make up and use different color shades in combination, so the boundaries are easy to see and advanced beauty technology And that the finished product looks unnatural.

[References] 1, FRAGANCE JOURNA
L, 24 (10) 69-77 (1996) 2, FRAGANCE JOURNAL, 24 (1
0) 78-84 (1996) 3, FRAGANCE JOURNAL, 25 (8)
22-27 (1997)

[0005]

[Problems to be Solved by the Invention] If a flat face like a Japanese can be given a three-dimensional effect by makeup, and can be finished into a slim face type or a face type with clear unevenness, it will be active and exotic. The image can be improved. Further, if a partial facial expression such as an eye and a mouth can be created by a point makeup fee such as an eye shadow or a lipstick, the above-described image effect can be further enhanced.

On the other hand, a woman who wants to maintain her youth forever, because the slack of muscles around her cheeks and eyes according to her age breaks the face line and poorly expresses her facial expressions.
There is a strong desire for slimming of the face and makeup that keeps the expression rich.
However, the cosmetics containing the pearlescent pigment and some other cosmetic methods listed above have not solved this problem to a satisfactory degree. With regard to the conventional mica titanium-based pearlescent pigment-containing cosmetic, the applied color looks whitish, and the interference color seen at the specular reflection angle is insufficient, and a three-dimensional and clear cosmetic finish cannot be obtained.
For this reason, by developing iris foil gloss pigments with stronger interference colors and blending them, it gives a three-dimensional effect, makes the face and nose muscles look clear, and is effective for the partial expression of eyes, lips, etc. Development of a new cosmetic was desired.

[0007]

According to the present invention, first, a substrate (base material) is substantially formed as flat (plate-shaped) silica, and the surface thereof is coated with titanium oxide to a geometric thickness. Silica iris foil ". Next, a colored pigment is fixed on the surface of the "titanium silica iris foil" or a white hydroxide or a white oxide is fixed thereon, and then the colored pigment is further fixed to obtain an "iris foil pigment". The above problem is solved by a cosmetic (particularly preferably, a makeup cosmetic) characterized by incorporating these "iris foil pigments". Hereinafter, the “iris foil pigment” of the present invention and a cosmetic containing the same will be described.

The average particle diameter of silicon oxide (silica) that substantially constitutes the “titanium silica iris foil” for producing the “iris foil pigment” of the present invention is about 1 to 100 μm. Is as flat (plate-like) as possible
Are preferred.

The "titanium-silica iris foil" which is the base of the present invention is obtained by coating a plate-like silica surface with titanium oxide, and its production method may be basically any known method. In particular, there are no restrictions.

[0010] Among them, for example, a vacuum deposition method and a method as disclosed in the Dupont patent (JP-B-43-25644) can be applied. That is, an aqueous solution of an inorganic acid salt of titanium (for example, titanyl sulfate) is prepared, and a commercially available platy silica is added thereto, followed by hydrolysis to precipitate hydrous titanium dioxide on the silica surface. This is a method of heating and drying to obtain an iris foil.

The "titanium silica iris foil" exhibits various interference colors depending on the thickness of the titanium oxide coating layer. That is, when the amount of titanium oxide is 10 to 25% by weight based on the total amount of silica and titanium oxide in the product, the color is usually silver, but when the amount of titanium oxide is 25 to 40%, gold is similarly used. At 40 to 50%, the color continuously changes to red and green according to the increase of the titanium oxide layer, and at 50 to 60%, the circuit goes round and returns to the gold of the next higher level.

Thus, when coating with titanium oxide,
A desired color tone can be selected in a range of a geometric thickness of about 0 to 200 μm. As a component of such a coating, oxides of bismuth, cadmium, zirconium and tin can be used in addition to the above-mentioned titanium. With respect to the range of the geometric thickness of the coating, the interference color slightly varies depending on the components used. Therefore, it may be appropriately selected according to those components, but usually the desired range is about 40 to 200 μm. Interference colors can be found.

Further, a colored pigment is fixed on the surface of the “titanium silica iris foil” as a base to obtain the desired “iris foil pigment”. On the other hand, on the surface of "titanium silica iris foil",
Fix low refractive index white hydroxide or white oxide,
Further, a colored pigment is fixed on this surface, and another kind of "iris foil pigment" can be obtained. This makes it possible to appropriately suppress colors that are too strong with only “titanium-silica iris foil”, and to produce a transparent, natural and mild color.

The low-refractive-index white hydroxide includes hydrated silica, and the white oxide includes anhydrous silica. In addition, magnesium fluoride having a refractive index of 1.37 and refractive index of 1.47 zeolite or the like can be used. Here, the applicable range of the refractive index is 1.37 to 1.37.
49. By fixing this low-refractive-index substance on the surface of the “titanium-silica iris foil” in the range of 1 to 20% by weight, light of a specific wavelength can be intensified (interference color can be obtained). That is, when a cosmetic containing this pigment is applied to the skin or the like, only light (color) having a specific wavelength is transmitted into the skin stratum corneum (transmission interference color), and light having a specific wavelength is reflected on the surface (reflection). The effect of increasing the interference color) power is obtained.

Next, examples of the colored pigment fixed to the surface of the "titanium silica iris foil" include inorganic pigments, organic pigments, and lake pigments. Their fixing amount is about 0.2 to 5.0% by weight based on the total amount, preferably 0.3 to 5.0% by weight.
It is 1.5% by weight, more preferably 0.4 to 1.2% by weight. The color pigment used is not particularly limited as long as it is within a range that can be generally applied to cosmetics. However, in view of the light mixing theory, by mixing light of complementary colors such as “red and green” and “blue and yellow”, the light is seen as transparent light. When a cosmetic containing these pigments is applied on the skin, the light that reflects on the surface of the cosmetic coating film and the light that passes through the coating film are selectively controlled, resulting in more transparent colors. can get. In this case, it is optimal to use a color pigment which has a complementary color relationship with the reflection interference color or a color pigment close thereto. For example, for an interference color of gold, an ultramarine blue, and for an interference color of orange,
Navy blue is similar to navy blue, but not limited thereto.

Further, by the above-mentioned various coating treatments, the crushing strength, which is one of the physical properties of the pigment, is improved, and the catalytic activity of the contained titanium oxide is weakened by being covered tightly, and the oxidative discoloration over time is caused. Can be prevented.

The "iris foil pigment" used in the present invention may be substantially hydrophobized. Examples of the hydrophobizing agent include silicon, higher fatty acids, higher alcohols, fatty acid esters, metal soaps, amino acids, alkyl phosphate esters, and combinations thereof, but other treatment methods may be used.

The "iris foil pigment" of the present invention is compounded in a cosmetic,

In order to sufficiently exhibit the cosmetic finish effect, for example, in the case of a powdery cosmetic, 1 to 100
% By weight. In the case of a cake-like or paste-like cosmetic, it can be blended in an amount of about 1 to 100% by weight, preferably about 1 to 80% by weight based on the weight of all powder components. In addition, in the emulsification type makeup cosmetic, it can be preferably added in an amount of about 0.5 to 20% by weight, more preferably about 1 to 8% by weight, based on the total weight of the emulsion.

In order to blend the "iris foil pigment" of the present invention into a cosmetic, and to sufficiently exert the above-mentioned cosmetic finishing effect,
An "iris foil pigment" can be compounded as an active ingredient, and the following components usually used conventionally in cosmetics can be combined and compounded at an appropriate ratio. In concrete productization, in the case of powder or pressed products, the relationship between the powder properties (fillability, particle size distribution, adhesion, etc.) of the pigment of the present invention and the base component and other pigments, The relationship between the dispersibility and wettability of the present pigment and the HLB of the base component is examined, and a combination of the prescription components is selected. In particular, by paying attention to the difference from the coating color, the color tone change (hue, saturation, lightness, etc.) is precisely adjusted for manufacture. The following examples are given as specific components blended in cosmetics.

Examples of powder pigments include talc, kaolin, calcium carbonate, fine particle titanium dioxide, red iron oxide, yellow iron oxide, black iron oxide, ultramarine blue, red iron oxide, ultramarine pink, navy blue, silicic anhydride, zinc oxide, Calamine, nylon powder, natural polymer powder and the like. These pigments may be subjected to hydrophobic treatment, and examples of the treating agent include silicon, higher fatty acids, higher alcohols, metal soaps, amino acids and the like.

Examples of the surfactant include sorbitan fatty acid ester, polyoxyethylene sorbitan fatty acid ester, glycerin fatty acid ester, polyglycerin fatty acid ester, polyethylene glycol fatty acid ester, sucrose fatty acid ester, polyoxyethylene alkyl ether, polyoxyethylene Castor oil derivatives, polyoxyethylene hydrogenated castor oil derivatives, nonionic surfactants such as polyoxyethylene phytostanol ether, polyoxyethylene cholesteryl ether, fatty acid soap, condensed carboxylate of amino acid and fatty acid, alkyl sulfonate, Anionic surfactants such as fatty acid ester sulfonates, alkyl sulfates, alkyl phosphates, alkyl allyl ether phosphates, alkylamine salts, and alkyl Quaternary ammonium salts, pyridinium salts, cationic surfactants such as imidazolium salts, betaines, and amphoteric surfactants such as imidazoline derivatives.

Examples of the oil content include hydrocarbon compounds such as squalane, paraffin oil, paraffin wax, microcrystalline wax, ozokerite, and ceresin, waxes such as beeswax, carnauba wax, candelilla wax, olive oil, camellia oil, lanolin, jojoba Natural fats and oils such as oil, fatty acids having 10 to 20 carbon atoms, and 10 carbon atoms
To 20 higher alcohols and their esters, dimethylpolysiloxane, dimethylcyclopolysiloxane, diarylpolysiloxane, higher alcohol-modified polysiloxane, etc., silicon oil, trimethylsiloxysilicic acid, etc., silicone resin, low molecular weight cyclic silicon, etc. Oil and the like.

Examples of the water-soluble component include monoalcohols such as ethanol and propanol, glycerin,
Examples include polyhydric alcohols such as ethylene glycol, 1,3-butylene glycol, polyethylene glycol, and polyglycerin, and derivatives thereof, amino acids, amino acid salts, and oxyacids.

Examples of the active ingredient include humectants such as mannitol, sorbitol, maltitol, mucopolysaccharide, sodium lactate, sodium pyrrolidonecarboxylate, methyl parahydroxybenzoate, ethyl paraoxybenzoate, butyl paraoxybenzoate, and sorbic acid. And vitamins such as vitamin C and vitamin E, and anti-inflammatory agents such as dipotassium glycyrrhizinate and stearyl glycyrrhizinate.

Examples of the ultraviolet absorber include benzoic acid ultraviolet rays such as para-aminobenzoic acid (hereinafter abbreviated as PABA), PABA monoglycerin ester, n, n'-dipropoxy PABA ethyl ester, and n, n'-dimethyl PABA butyl ester. Absorbers, anthranilic acid-based ultraviolet absorbers such as homomenthyl-n-acetylanthranilate,
Salicylic acid ultraviolet absorbers such as amyl salicylate, octyl salicylate, p-isopropanol phenyl salicylate, ethyl-4-isopropylcinnamate,
Cinnamic acid-based ultraviolet absorbers such as glyceryl mono-2-ethylhexanoyldiparamethoxycinnamate and cyclohexyl p-methoxycinnamate.

Examples of the viscosity modifier include synthetic polymer compounds such as polyvinyl alcohol, carboxyvinyl polymer and carboxymethyl cellulose; natural polymers such as gelatin, xanthan gum, bentonite and veegum; and synthetic colloidal hydrous silicate.

[0027]

The cosmetic composition containing the "iris foil pigment" of the present invention, when applied to the skin or the like, gives a three-dimensional effect to the applied surface with a color effect due to a highly transparent anisotropic property, and provides a face line. In addition to the effect of clearly showing the nose and ridge, the contours of the eyes, lips, and nails can be made slim, and a cosmetic finish that is excellent in the effect of partial expression can be realized.

[0028]

[Pigment Production Examples] Next, using "titanium silica iris foil", which is a substantially base used in the present invention, as a base material,
A production example for producing an “iris foil pigment” will be described, but the present invention is not limited thereto.

Embodiment 1 First,

50 parts of “titanium silica iris foil” (average particle diameter: 18 μm) obtained in above is added to 500 parts of ion-exchanged water, sufficiently stirred, and uniformly dispersed. Separately, an aqueous solution is prepared by dissolving 6.6 parts of sodium silicate in 100 parts of ion-exchanged water, and this liquid is added to the above-mentioned dispersion liquid of “titanium silica iris foil” to make a uniform dispersion liquid. By blowing carbon dioxide gas into the dispersion, hydrated silica is precipitated on the surface of the “titanium silica iris foil”, heated and dried to obtain “titanium silica iris foil” having 10% by weight of the hydrated silica fixed thereon. Next, "titanium silica iris foil" to which 10% by weight of hydrous silica was fixed.
(Average particle diameter: 18 μm) (Interference color: red) 50 parts are added to 600 parts of ion-exchanged water, sufficiently stirred, and uniformly dispersed. The resulting dispersion was heated to 70 ° C., and the temperature was adjusted.
After adding 0.7 parts of hydrochloric acid and stirring, 0.637 parts of a ferrocyanide solution, 1.087 parts of ferrous chloride and 0.40 parts of ammonium chloride are added to 10 parts of ion-exchanged water to be separately prepared.
A solution obtained by dissolving 6 parts in 10 parts of ion-exchanged water is simultaneously dropped. After completion of the dropwise addition, the mixture was kept at 70 ° C. for 30 minutes.
Add 3.88 parts of 8M sodium carbonate dropwise and cool to 40 ° C. After cooling, decantation and water washing were repeated and dried at 40 ° C. for 20 hours to obtain “iris foil pigment”.

Example 2 Production Example 1 was repeated except that “titanium silica iris foil” having an average particle diameter of 12 μm was used instead of “titanium silica iris foil” fixed to 10% by weight of hydrous silica in Example 1. Same as

Example 3 Instead of 10% by weight of hydrated silica of Example 1, 5 parts by weight of hydrated silica having an average particle diameter of 24 μm and 30 parts of “Titanium silica iris foil” (interference color: green) instead of “Titanium silica iris foil” "Titanium silica iris foil" (interference color;
Same as Example 1 except that 20 parts (gold) were used.

Example 4 4.95 parts of “titanium silica iris foil” (interference color: gold) having an average particle diameter of 16 μm and an average particle diameter of 20.1
5% by weight hydrated silica fixed to μm "Titanium silica iris foil"
After dispersing 4.95 parts in 95% ethanol, red 2
0.1 g of No. 01 is added and dissolved and dispersed. Thereafter, a solution in which 13.4 parts of sodium carbonate was dissolved in 40 parts of purified water was added, and after stirring, a solution in which 80 parts of anhydrous calcium chloride was dissolved in 120 parts of separately prepared 95% ethanol was added, followed by 4 hours. The reaction is aged. Thereafter, the mixture is heated to 80 ° C., 300 parts of purified water is added thereto, and the mixture is stirred and left overnight. Then, it was filtered, dried and pulverized to obtain "iris foil pigment".

[0029]

[Examples of Cosmetic Formulation] Next, examples of cosmetics containing the above-mentioned "iris foil pigment" will be described, but the scope of the present invention is not limited to these examples. In addition, the following compounding quantity has shown weight%.

Embodiment 1 (Eye Color) Talc 40,3% Mica 14.8 Sericite 4.4 "Iris foil pigment" 16.3 Other pigments 11.0 Liquid paraffin 6.5 methylpolysiloxane 2.7 C.I. Surfactant 2.2 Fatty acid ester 1.2 Preservative appropriate amount Antioxidant appropriate amount (Production method) A talc, mica, sericite and pigment of A are mixed well with a blender. Next, after the paraffin of B, methylpolysiloxane and other components of C are uniformly dissolved, they are mixed with the powder component of A, pulverized by a pulverizer, and pressed.

Example 2 (Two-way cake foundation) Silicon-treated talc 39.0% Silicon-treated sericite 18.0 Silicon-treated kaolin 4.0 Silicon-treated titanium oxide 5.0 Silicon-treated Bengala 1.8 Silicon-treated iron oxide 3.2 "Iris foil pigment" 15.0 B.I. Liquid paraffin 3.5 Squalane 1.8 Methylpolysiloxane 4.2 C.I. Preservative proper amount Perfume proper amount (Production method) A is mixed and pulverized through a pulverizer. This is transferred to a high-speed blender, and the mixture of B and C is added to A and mixed uniformly. This is processed by a pulverizer, passed through a sieve to make the particle size uniform, and then compression-molded in a metal dish container.

Embodiment 3 (Stick Lipstick) Ozokerite 4.5% ceresin 4.9 solid paraffin 8.5 glycerin trioctanoate 18.0 diisostearyl malate 38.0 octyldodecyl myristate 8.5B. Titanium oxide 0.7 Red 201 No. 1.0 Red 202 No. 1.0 Blue No. 1 Aluminum lake 0.4 "Iris foil pigment" 18.0 C.I. Appropriate amount of fragrance Antioxidant Appropriate Preservative Appropriate (Preparation method) Heat and dissolve A and mix uniformly. To this part, add B other than "iris foil pigment", knead and uniformly disperse it with a roll mill, redissolve with "iris foil pigment", add C, defoam, pour into mold and quench. Harden. The solidified material is removed from the mold and loaded into a container. Next, fix the appearance of the stick and pass it through the flame to smooth the surface.

Example 4 (Cake-shaped eyeshadow) Talc 31.0% Sericite 10.0 Mica 9.0 Zinc stearate 2.8 "Iris foil pigment" 30.0 Other pigments 13.0 Diisostearyl malate 3.7 Squalane 3.9 C.I. Preservatives Appropriate amount (Production method) A other than "iris foil pigment" is mixed in a mixer, B and C previously mixed and dissolved are mixed, added to A, and uniformly mixed. This is treated with a pulverizer, returned to the mixer again, mixed with "iris foil pigment", then sieved through a sieve to obtain a uniform particle size, and compression-molded in a metal dish container.

Embodiment 5 (Liquid Foundation) Talc 6.5% Titanium oxide 10.5 Silica anhydride 1.8 Nylon powder 3.1 "Iris foil pigment" 3.7 B. Cyclic silicon 11.0 Fatty acid ester 7.8 Squalane 2.7 Methylpolysiloxane 1.7 C.I. 1,3-Butylene glycol 5.2 Ethanol 6.5 Water Appropriate amount (Production method) A is mixed and pulverized, added to C, and uniformly mixed with a homomixer. After the dispersion is added to the component B which has been dissolved in advance, the mixture is uniformly mixed with a homomixer and defoamed.

[0030]

TEST EXAMPLE Each of the "iris foil pigments" according to the above Production Examples 1 to 4 was blended in a two-way cake formulation to obtain four test samples. On the other hand, three commercially available two-way cake comparative samples of the same formulation containing three commercially available pearl pigments and a separately prepared metal phosphate / titanium oxide-coated mica pigment were prepared. That is, a; A ′; Timica super red compound b; Production Example 2. B ′; Timica Super Gold formulation c; Production Example 3. C '; Timica Super Green, d; Production Example 4. Blended with a pigment of. d '; blended metal phosphate / titanium oxide coated mica A total of eight test samples were used for a professional panel (15 women in their 20s to 40s) for 8 days to conduct a comparative sensory test The result

The results are shown in Table 1.

[Table-1] From the above results, in the test sample blended with the new "iris foil pigment", the makeup effect is superior to the comparative sample blended with the conventional pigment, and in particular, the cosmetic finish due to the three-dimensional color effect is more favorable. You can see that.

Continued on the front page (51) Int.Cl. ⁷ Identification code FI Theme coat II (Reference) A61K 7/031 A61K 7/031 7/032 7/032 7/035 7/035 7/043 7/043 7/06 7 / 06 7/13 7/13 C09B 67/02 C09B 67/02 A 67/20 67/20 A C09C 1/28 C09C 1/28 F term (reference) 4C083 AB031 AB032 AB171 AB212 AB232 AB241 AB242 AB331 AB432 AB441 AB442 AC012 AC022 AC102 AC122 AC342 AC352 AC422 AC792 AD072 AD152 AD172 BB23 BB24 BB25 CC05 CC11 CC13 CC14 CC28 CC32 CC36 DD11 DD17 DD21 DD23 DD27 DD31 EE06 EE26 4J037 AA18 CA09 CA11 CA23 CA24 CA25 CA29 CB28 DD30 EE03 FF09

Claims (4)

[Claims] 1. A colored material comprising silicon dioxide (silica) as a substrate (matrix), a titanium dioxide coating on the surface, and a colored pigment (inorganic pigment, organic pigment, lake pigment) coated on the surface. Iris foil gloss pigment and method for producing the same. 2. Using silicon dioxide (silica) as a substrate (matrix), titanium dioxide is coated on the surface, and white hydroxide, white oxide, magnesium fluoride,
Refractive index such as zeolite ^{(n 25} _D) is 1.37 to 1.4
Nine ranges of compounds are coated alone or in combination.
Furthermore, a colored iris foil gloss pigment obtained by coating the surface with a colored pigment (inorganic pigment, organic pigment, lake pigment) and a method for producing the same. 3. A cosmetic comprising the colored iris foil luster pigment (hereinafter abbreviated as "iris foil pigment") according to claim 1 and / or claim 2. Make-up cosmetics containing the "iris foil pigment" of item 2 in a total amount of 1 to 100% by weight, for example, face powder, cheek color, solid white powder, liquid foundation, powder foundation, two-way cake foundation Eye shadow, lipstick, nail color, etc. 4. A skin care cosmetic or hair cosmetic comprising the iris foil pigment of claim 1 and / or claim 2 in a total amount of 1 to 20% by weight, for example, , Under makeup base, carmine lotion, cream, gel, emulsion, hair color, etc.