JPS6351310A - Cosmetic compounded with spherical clay mineral - Google Patents

Abstract

PURPOSE:To provide a cosmetic giving excellent feeling to the skin and having transparent feeling, by compounding spherical powder of water-swelling clay mineral. CONSTITUTION:Preferably a water-swelling clay mineral is dispersed in an aqueous solvent and the dispersion is spray-dried to form spherical powder of water-swelling clay mineral having particle diameter of 2-20mum. The powder is compounded to a cosmetic base at an amount of 0.05-50wt%, 0.5-5wt% for emulsified or dispersed cosmetic and 0.1-30wt% for powdery or pressed powder cosmetic. The cosmetic produced by this method has extremely excellent smoothness and slipperiness and high transparency (low masking power) compared with conventional extender pigment used in cosmetics.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a cosmetic containing spherical water-swellable clay mineral powder. More specifically, the present invention relates to a cosmetic composition containing spherical water-swellable clay mineral powder and having an excellent feel when used.

[Prior art] Water-swellable clay minerals are used as dispersion stabilizers for paints, pharmaceuticals, and cosmetics by utilizing their swelling and gelling properties, and have particularly high safety and good gelling ability. Therefore, it is preferably used in cosmetics, especially powder dispersion products and emulsion products (eyeliner, mascara, milky lotion, cream, nail enamel, etc.). It is generally formulated in the form of a gel dispersed in an aqueous solvent.

On the other hand, it is rarely added directly to cosmetics in powder form, but even if it were directly added to cosmetics in powder form, it would be rough due to its irregular shape. This makes it difficult to incorporate it into cosmetics, where the feel of the product is particularly important.

Conventionally, water-swellable clay minerals have generally been used as gelling agents in aqueous systems and emulsifiers in water-oil systems, and have never been used as powders.

[Problems to be Solved by the Invention] As a result of intensive studies to improve the drawbacks of the prior art, the present inventors have determined that water-swellable clay minerals have a sphericity and that they can be incorporated into cosmetics. As a result, the present invention was successfully completed by successfully obtaining a chemical extract that is transparent and has a good feel when used, such as slippage.

[Means for Solving the Problems] That is, the present invention relates to a cosmetic composition characterized by containing spherical water-swellable clay mineral powder (hereinafter referred to as spherical clay mineral), which cosmetic composition has a very smooth texture. The result is a cosmetic that has good slipperiness and is highly transparent (less impervious) compared to extender pigments commonly used in cosmetics.

The configuration of the present invention will be described below.

The spherical clay mineral used in the present invention is a powder made of water-swellable clay mineral.

Water-swellable clay minerals are a type of colloidal hydrated aluminum silicate with a three-layer structure, and are generally expressed by the following general formula: (commercially available products include Veegum manufactured by Bang-Bilt, Kunivia manufactured by Kunimine Minerals, Laponite manufactured by Laborte, etc.) and synthetic mica known as sodium silicic mica, sodium or lithium teniolite (commercially available products) For example, there is Guimonite manufactured by Topie Industries).

In carrying out the present invention, one or more kinds of these water-swellable clay minerals are arbitrarily selected.

The particle size of the spherical clay mineral of the present invention is 2 to 20 μm.

Although the method for producing the spherical clay mineral of the present invention is arbitrary, the spray drying method is the simplest method and provides a spherical powder with uniform particle shape and particle size.

That is, the method involves dispersing water-swellable clay minerals in an aqueous solvent to form a gel, and then spray-drying the dispersion.

When making the above gel from steel, it is desirable that the concentration of the water-swellable clay mineral be 20% by weight or less,
Particularly preferably, it is 1 to 10% by weight. If the concentration exceeds 20% by weight, the gel viscosity is high, making it difficult to feed the liquid to the spray nozzle during spray drying, and clogging the nozzle.

Further, when preparing the gel, it is preferable to sufficiently stir the gel so that the water-swellable clay mineral is sufficiently dispersed and swollen. If the dispersion and swelling are insufficient, the nozzle may become clogged during spray drying, and the obtained spherical clay mineral may become irregular, which is not preferable.

For spray drying, disc type, pressure nozzle type,
A general spray drying method such as a two-fluid nozzle method can be applied.

In either case, the inlet air temperature during spraying is 3.
Since it is thermally stable enough up to about 00℃, 100℃
A wide temperature range of ~300°C can be set. Further, the exhaust temperature is determined by the flow rate of the spray from the nozzle, etc., but generally speaking, it may be around 100°C.

The particle size of the spherical clay mineral thus obtained is 2 to 20 μm.
It is. Furthermore, the morphology of the particle surface obtained in this way becomes more uniform and smoother as the appearance of the gel is more transparent and the viscosity is higher (for example, in the case of Laponite).

It can be incorporated into cosmetics in any concentration range depending on the form of the cosmetic, and is generally 0.05 to 50% by weight. In the case of emulsified or dispersed products, the amount is generally 0.5 to 5% by weight, and in the case of powdered or pressed powder type products, the amount is generally 0.1 to 30% by weight.

In addition to the above-mentioned spherical clay minerals, the cosmetic composition of the present invention may contain other ingredients commonly incorporated in cosmetic compositions within a qualitative and quantitative range that does not impair the present invention. Such ingredients include oils, waxes, pigments, powders, surfactants, preservatives, pigments, antioxidants, ultraviolet absorbers,
Fragrances, moisturizing agents such as polyhydric alcohols, chelating agents, acids,
Examples include alkalis, water-soluble polymers, oil-soluble polymers, and clay minerals.

Specific examples of oils, waxes, pigments, and surfactants are listed below.

Waxes and oils; animal and vegetable oils such as beef tallow, squalane, olive oil, evening primrose oil, rice bran oil, and candelilla wax carnauba wax, hydrocarbons, mineral oils such as liquid paraffin and solid paraffin, isopropyl myristate, pentaerythritol-tetra-2-ethyl Ester oils such as hexanoate, silicone oils such as methylphenyl silicone, dimethyl silicone, alcohols such as 2-octyldodecanol, 2-decyltetradecanol, oleyl alcohol, cetyl alcohol, behenic acid, oleic acid, isostearic acid, etc. fatty acids, higher alcohols such as oleyl alcohol, cetanol, and stearyl alcohol.

Surfactant; polyoxyethylene (hereinafter abbreviated as POE), POE-branched alkyl ether such as octyldodecyl alcohol, POE-2-decyltetradecyl alcohol, POE-alkyl ether such as POE-oleyl alcohol ether, POE-cetyl alcohol ether, etc. , sorbitan esters such as sorbitan monooleate, sorbitan monoisostearate, sorbitan monolaurate, POE-sorbitan monooleate, PO
POE-sorbitan esters such as E-sorbitan monoisostearate and POE-sorbitan monolaurate; glycerin fatty acid esters such as glyceryl monooleate, glyceryl monostearate, and glyceryl monomyristate; POE-glyceryl monooleate;
POE-glycerol fatty acid ester such as OE-glyceryl monostearate, POE-glyceryl monomyristate, POE-dihydrocholesterol ether,
OEJI! POE-hydrogenated castor oil fatty acid esters, such as hydrogenated castor oil, POE-hydrogenated castor oil isostearate;
POE-alkylaryl ethers such as POE-octylphenol ether, glycerol ethers such as glycerol monoisostearate, glycerol monomyristate, POE-glycerol monoisostearate, POE-glycerol monomyristate, etc.
Nonionic surfactants such as polyglycerin fatty acid esters such as OE-glycerol ether, diglyceryl monoisostearate, decaglyceryl decastearate, decaglyceryl decaisostearate, diglyceryl diisostearate, myristic acid, stearic acid , salts of higher fatty acids such as palmitic acid, behenic acid, isostearic acid, oleic acid, potassium, sodium, jetanolamine, triethanolamine, amino acids, etc.
Anionic surfactants such as the above alkali salts of ether carboxylic acids, N-acyl amino acid salts, N-acyl sarcosine salts, higher alkyl sulfonates, alkyl amine salts, polyamines, amino alcohol fatty acid organic silicone resins, alkyl quaternary Cationic surfactants such as ammonium salts or amphoteric surfactants.

Pigments; talc, mica, kaolin, calcium carbonate, zinc white, titanium dioxide, red iron oxide, yellow iron oxide, black iron oxide,
Ultramarine blue, navy blue, chromium hydroxide, titanium cochoid mica,
Inorganic pigments such as bismuth oxychloride, crystalline cellulose,
Organic pigments such as nylon powder and polyethylene powder.

[Effects of the Invention] Since the spherical clay mineral of the present invention is spherical, when it is blended into cosmetics, it does not have a rough feeling and has extremely good slippage.
Moreover, transparent cosmetics can be provided.

Table 1 lists the spherical clay minerals prepared under various conditions.

Furthermore, a powder leaf amplifier was manufactured using the powder of grade 1 in Table 1 and non-spherical Laponite XLG (amorphous as purchased from Laborte),
The quality of the item was measured.

The results are shown in Table-3. (Table 2 is a prototype recipe) (Left below is blank) Table 1 List of spherical clay minerals *-1 Manufactured by Laporte in the UK *-2 Manufactured by Bang-Bilt in the United States *-3 Manufactured by Kunimine Minerals *-4 Manufactured by Nippon Kayaku *-5 Manufactured by NL Chemical Co., USA *-6 Manufactured by Topie Industries (manufacturing method) Magnetic 1 (Seeds 2 to 9 follow Kan 1.) 30 g of Laponite XLG is dispersed in 1 β of water with stirring.

The obtained gel was dried in a disc spray dryer at a disc rotation speed of 20,000 rpm, an inlet air temperature of 200°C,
Spray drying at an exhaust temperature of 110°C yielded 24 g of spherical powder of 2-10 μm.

Table-2 Powder Leaf Amp-John Prescription Laponite X
LG 10.0 talc
20.0 Mica 52.
5 iron oxide red 1.0 iron oxide yellow
0.5 Iron oxide black 0.5 Titanium oxide 5.0 Liquid paraffin 5.0 Lanolin
5.0 Ethylparaben 0.3 Fragrance
0.2 total
100.0 (Manufacturing method) Each powder was charged into a Henschel mixer, and after uniformly stirring, the remaining components were added and uniformly mixed. The mixture was pulverized with an atomizer and molded into a medium plate to obtain a powder leaf amplifier.

*-1 and *-2 Usage test results (transparency) sensory evaluation of coating color by 20 panelists. In the formulation of Table 2,
Evaluation (usability) was performed according to the following 5 levels, where the evaluation when talc was used instead of Laponite XLGO was marked as x.

1. Rough and bad.

2 Slightly rough.

3 Normal 4 Slightly slippery.

5. Good glide and smooth appearance.

The numbers in Table 3 are the average values of the 20 panelists.

From the results in Table 3, it can be seen that the powder leaf amplifier containing spherical clay minerals has excellent transparency and good sliding properties.

[Example] Next, the present invention will be explained in detail using examples.

The present invention is not limited thereby.

In addition, the numerical value is weight%.

Example-1 Comparative Example-1 Lipstick *-1 Spherical clay mineral of disease 2 in Table-1 (hereinafter blank) (Manufacturing method) Oil and wax are heated and melted at 85 to 95°C, and powder is added to this. and disperse. Immediately, the mixture was degassed under reduced pressure, transferred to a predetermined container, and cooled and solidified to obtain a lipstick.

Example-1 is a stick-shaped lipstick that spreads very easily, and the score according to the usage test shown in Table-3 is 4.2.
It had a transparent finish. On the other hand, Comparative Example 1 had a slightly powdery and heavy usability, and the usability score was 2.1.

Example 2 Comparative Example 2 To pressed eye shadow *-1 Spherical clay mineral of 3 in Table-1 *-2 Veegum HV purchased from Bang-Bilt as is (plate shape) (Manufacturing method) Excluding titanium cochid mica After mixing the powder with a Henschel mixer, oil and surfactant were added, and the mixture was pulverized with a pulverizer. Further, titanium cochoid mica was added and mixed uniformly using a Henschel mixer. This product was compression molded into a predetermined medium plate to obtain an eye shadow.

Example 2 is a slippery eye shadow, and Comparative Example 2
had rough usability and was slow to spread.

Example 3 Baby powder citric acid is dissolved in 99% alcohol, added to talc, mixed with a Henschel mixer, and then alcohol is removed at 80"C.Additionally, the remainder is added and pulverized with an atomizer. Transfer it directly to a container to obtain baby powder.

(The following is a blank space) Example M> M had a soft feel and spreadable properties, had little powderiness, and had excellent transparency. Real JIJ4
Emulsified foundation stearic acid 0. Fisoprobil myristate 4 squalane
12 Polyoxyethylene (10) Stearyl ether 2 Cetyl ether 0.3 Talc
5 Spheroidal clay mineral *-11
5 Iron oxide pigment 2.5 Red 202
No. 0.5 preservative
0.09 triethanolamine
0.42 propylene glycol
5 Purified water 52.19 Fragrance
0.3*-1 1 in Table-1
Ih5 spherical clay mineral (manufacturing method) After heating and mixing and dissolving the oil and surfactant, the pigment part is added and uniformly dispersed. Triethanolamine and propylene glycol dissolved in purified water and heated are added to emulsify. This was stirred and cooled, a fragrance was added thereto to make it uniform, and the mixture was filled into a container to obtain an emulsified foundation.

Example 4 can be spread smoothly with light application,
It was an emulsified foundation with a smooth feel and a transparent feel.

Example 5 Blush talc 30 mica
Titanium 25 oxide
3 Titanium coid mica 5
．． 5 Red No. 202 0.5 Spheroidal clay mineral *-120 Sorbitan diisostearate 1 Squalane
7 Methylborisiloxane
8*-1 Spherical clay mineral of No. 6 in Table-1 *-1 Isoparaffin manufactured by Esso Chemical *-2 Organically modified montmorillonite clay manufactured by NL Chemicals *-3 Spherical clay mineral of No. 7 in Table-1 (manufacturing method) Isopar Add the activator, water, bentone, and pigment to a portion of Isopar H, uniformly disperse and mix, and heat to 85°C. Add the dispersion liquid prepared in advance to this, disperse and mix at 85°C to 90°C, add fragrance, and slowly cool to 30°C. Get a sexy eyeliner.

Example 6 was an eyeliner that spread well and had excellent brushability. Also, it felt moist after removal.

Example 7 Dual use foundation titanium oxide 15 mica 22 iron oxide
3 (Manufacturing method) Mix the pigment part, add the other ingredients by heating and dissolving them,
Mix and grind. This was molded into a medium plate to obtain a pressed blusher.

Example 5 was a blusher that spread very easily and had a transparent finish with no powdery finish.

Example 6 Liquid eyeliner Isopar H*-158,97 Hydrocarbon resin 5 Carnauba wax 1 Candelilla wax 5 Cholesterol
2. Ethyl alcohol 3. Blue water
1 Benton 38*
-23 Iron oxide black 10 Spheroidal clay mineral
*-310 Sorbitan Monostearate 1 Fragrance
0.03 total
100.00 Spheroidal clay mineral *25 Liquid paraffin 4.5 Methyl polysiloxane 100C320 (Shin-Etsu Chemical type silicon K F 96) Methylhydrodiene polysiloxane 20CS10 10 (Shin-Etsu Chemical type silicon K F 99) (Shin-Etsu Chemical silicon KF99) Sorbitan sesquioleate 0.5 * Spherical clay mineral of No. 8 in Table 1 (manufacturing method) After uniformly mixing the pigment part, add oil and activator and mix. After pulverizing with an atomizer, it is press-molded into a predetermined medium plate.

Example 7 was a wet/dry foundation that spreads easily and provides a glossy finish whether the sponge is soaked in water or not. +ii Correct writing spontaneously) September 24, 1985 Commissioner of the Patent Office Black 1) Akio Yu Tonobox 1, Display of the case 1986 Patent Application No. 194494 2, Name of the invention Cosmetic composition containing spherical clay minerals 3 .1ili Correlation with the person making the correction Contents of amendment (1) in column 5 of "Detailed Description of the Invention" of the patent applicant's specification Page 23 of the specification, line 6 "Polysiloxane 2
0C510" should be corrected to "Polysiloxane 20CSJ.

Claims (2)

[Claims] (1) A cosmetic characterized by containing spherical water-swellable clay mineral powder. (2) The spherical water-swellable clay mineral powder is obtained by dispersing the water-swellable clay mineral in an aqueous solvent and then spray-drying the dispersion. cosmetics.