JP3523910B2 - Cosmetics - Google Patents

Description

Detailed Description of the Invention

[0001]

The present invention relates to extensibility of the skin, feeling in use, oil absorbing, excellent sheet recone treated spherical calcium carbonate such as biocompatibility - relates by blending the apatite composite cosmetic is there.

[0002]

2. Description of the Related Art Conventionally, spherical powders such as spherical silica, spherical alumina, spherical nylon and spherical polystyrene have been used to improve the extensibility and feel of cosmetics. It has the drawback of being bad. Therefore, in order to overcome this drawback, cosmetics containing spherical apatite (for example, JP-A-63-96110,
Japanese Unexamined Patent Publication (Kokai) No. 1-96104) and cosmetics containing a spherical composite powder coated with hydroxyapatite (for example,
JP-A-63-27414, JP-A-4-30851
No. 3 gazette) is proposed. However, in the former case, since the spherical apatite compounded is granulated by spray drying, the particle size is not uniform, the particle size distribution width is wide, and it is difficult to obtain fine particles. Sometimes the spherical shape formed by granulation tends to collapse, and in the latter, the spherical composite powder to be blended is coated with hydroxyapatite by mixing compression, so the surface uniformity is not good,
Whether the hydroxyapatite coated during the preparation of cosmetics is likely to fall off in addition to the poor extensibility (JP-A-63-2741)
No. 4), or the coating pigment to be blended, the base material is not limited to spherical, and since hydroxyapatite is generated in the reaction solution to coat the base material, it is more hydroxylated than the coating on the base material. Crystal growth of apatite is more likely to occur, and the particle size of the coated hydroxyapatite is less likely to be uniform, so that the coated surface is less likely to be uniform, and extensibility is poor even when the substrate is spherical particles (JP-A-4- 308513).

[0003]

DISCLOSURE OF THE INVENTION The present invention overcomes the above-mentioned drawbacks of conventional spherical powders, is excellent in skin extensibility, feeling in use, oil absorption, biocompatibility, and the like, and is a cosmetic preparation. The purpose of the present invention is to provide a spherical powder-containing cosmetic in which the spherical shape is disintegrated or deformed and the hydroxyapatite is dropped off.

[0004]

The present inventors have SUMMARY OF THE INVENTION may, as a result of various studies to develop a spherical powder formulation cosmetic having favorable properties described above, as a spherical powder to be compounded
Shi recone processing spherical calcium carbonate - The use of apatite complex, it found that can achieve the purpose, and completed the present invention based on this finding.

Namely, the present invention recone processing spherical calcium carbonate - there is provided a cosmetic comprising blending granular material apatite composite.

Granules to be blended with cosmetics in the present invention
The, sheet recone processing spherical calcium carbonate - apatite complex, excellent acid resistance as compared with spherical calcium carbonate, since drops pH value, pH value in harmony with weakly acidic skin occurs such as peel rough It is advantageously used because there is no fear.

The powder or granular material usually has an average particle diameter in the range of 0.1 to 20 μm, preferably 0.1 to 10 μm. If the particle size exceeds 20 μm, a foreign body feels and the skin feels uncomfortable, and if it is less than 0.1 μm, smoothness is not felt, and fine wrinkles and pores of the skin enter, which is not preferable.

Silicone treated spherical calcium carbonate-APA
Tight composite is spherical calcium carbonate-apatite composite
The body is coated with silicone oil, and spherical carbon dioxide
Compositional ratio of lucium-apatite composite and silicone oil
Is 100: 0.1-100: 100, preferably by weight.
It should be selected in the range of 100: 0.1 to 100: 20.
It If this amount ratio is too small, the effect of adding silicone oil will be
It is not fully exerted, and if it is too large, the effect will not increase
I can't wait. As this silicone oil, for example, dimethy
Rupolysiloxane, methylpolysiloxane, methylfe
Nyl polysiloxane, decamethyl tetracyclosiloxa
, Octamethyltrisiloxane, various modified polysiloxane
Sun and so on.

The spherical calcium carbonate-apatite composite has a base material composed of spherical calcium carbonate, and the surface of the base material is coated with apatite. The composition ratio of the spherical calcium carbonate and the apatite is on a weight basis. 10
0: 9 to 100: 100, preferably 100: 9 to 10
It is selected in the range of 0:20. If this ratio is too small, the apatite coating layer is not sufficiently formed on the entire surface of the spherical calcium carbonate, and if it is too large, a mixture of spherical calcium carbonate and apatite is produced.

The spherical calcium carbonate is not particularly limited as long as it has a substantially spherical shape, for example, a cross-sectional shape having a circle, an ellipse, or a shape similar to those, and regardless of the crystal system, for example, calcite or aragonite. , Vaterite, etc. are used. The spherical calcium carbonate preferably has an average particle diameter of 2 to 10 μm and at least 50 particles as described in JP-A-61-168524.
Light calcite having a particle size distribution such that the weight% is within a range of ± 50% by weight of the average particle size, and a specific surface area of 1 to 15 m ² / g, and light calcite having an average particle size of less than 2 μm. And so on.

The apatite coating the surface of the spherical calcium carbonate is not particularly limited, and examples thereof include hydroxyapatite, fluoroapatite, carbonate apatite, etc. Among them, hydroxyapatite is preferable. A particularly preferred spherical calcium carbonate-apatite composite is one in which the base material is spherical light calcium carbonate and the surface of the base material is coated with hydroxyapatite.

Among spherical calcium carbonate-apatite composites, those in which apatite is hydroxyapatite (hereinafter,
Hydroxyapatite-based complex) is a calcium carbonate suspension, preferably a light calcium carbonate suspension to which an aqueous solution or suspension of water-soluble phosphoric acid or a water-soluble salt thereof is added,
It can be produced by performing coating treatment in the basic region at a temperature of 5 to 250 ° C. under normal pressure or pressure. At this time, treatments such as water washing, filtration, and drying may be performed after the coating treatment.

This calcium carbonate suspension is used by suspending 5 to 100 parts by weight, preferably 10 to 50 parts by weight of calcium carbonate per 100 parts by weight of water. If the amount of this calcium carbonate is too low and the concentration is too low, the productivity will be reduced, and if it is too high and the concentration is too high, the aqueous solution or suspension of water-soluble phosphoric acid or its water-soluble salt will be The dispersibility is not good, local reaction is likely to occur, it is difficult to obtain a uniform coating with apatite, and a mixture of calcium carbonate and apatite is likely to be formed, which is not preferable.

Regarding the aqueous solution or suspension of the water-soluble phosphoric acid or its water-soluble salt added to this calcium carbonate suspension, an amount sufficient to form an apatite coating layer on the entire surface of calcium carbonate, or an appropriate amount. It is important to use one with a concentration. The Ca / P (molar ratio) of light calcium carbonate and water-soluble phosphoric acid or its water-soluble salt is usually 2
-20, preferably 10-20. If this ratio is too small, a mixture of light calcium carbonate and apatite is produced, and if it is too large, the formation of the apatite coating layer on the entire surface of the light calcium carbonate is insufficient, which is not preferable.

Examples of the water-soluble phosphoric acids include orthophosphoric acid, metaphosphoric acid, pyrophosphoric acid, polyphosphoric acid and the like, and examples of the water-soluble salts thereof include NH ₄ H ₂ PO.
₄ , (NH ₄ ) ₂ HPO ₄ , (NH ₄ ) ₃ PO ₄ , NaH ₂ PO
₄ , Na ₂ HPO ₄ , Na ₃ PO ₄ , KH ₂ PO ₄ , K ₂ HPO
₄ , K ₃ PO _{4 and the} like. These may be used alone or in combination of two or more.

Regarding the basic region, the pH is usually 8 to
13, preferably pH 9 to 11 is selected. If this pH value is too low, calcium hydrogen phosphate dihydrate (C
aHPO ₄ .2H ₂ O) and other calcium phosphates other than apatite are produced, and if it is too high, the pH value of the suspension after the reaction becomes high, which is not preferable.

Regarding the treatment temperature, there is a relationship with the pressure conditions and the like, and the preferable range also varies, but there is a tendency that the coating treatment speed increases as the temperature increases or the pressure increases. Further, there is a tendency that the coating speed increases as the stirring speed increases.

In order to obtain the calcium carbonate-apatite complex whose apatite is carbonate apatite, that is, to generate carbonate apatite on the surface of calcium carbonate, the production requirements of the hydroxyapatite complex are to be met. In addition, a CO ₂ -containing gas, or urea, or a carbonate such as (NH ₄ ) ₂ CO ₃ , Na ₂ CO ₃ , or K ₂ CO _{3 is} allowed to exist in the reaction system in the form of an aqueous solution or suspension. . These may be used alone or in combination of two or more. Further, among the calcium carbonate-apatite composite, in order to obtain one in which the apatite is fluoroapatite, that is, in order to produce fluoroapatite on the surface of calcium carbonate, in addition to the production requirements of the hydroxyapatite-based composite, Furthermore, NH ₄ F, KF, N
A fluoride such as aF is allowed to exist in the reaction system in the form of an aqueous solution or a water suspension. These may be used alone, or 2
You may use it in combination of 2 or more types.

[0019] used in the present invention, shea recone processing spherical calcium carbonate - For cosmetic apatite complex is formulated is not particularly limited, for example powder foundation, two-way foundation, emulsified foundation, liquid foundation, cake foundation, Stick-shaped foundation, white powder, talcum powder, preshave, ointment, sunscreen, cleansing cream, under makeup, lipstick, blusher, face powder, body powder,
Whitening powder, pressed powder, emulsion, lotion, antiperspirant, eye shadow, eye liner, eyebrow pencil, eye color, cheek color, etc.

[0020]

EFFECTS OF THE INVENTION The cosmetics of the present invention are excellent in extensibility to the skin, feeling in use, oil absorbency, biocompatibility, etc., and at the time of their preparation, spherical shape collapse or deformation, hydroxyapatite dropout, etc. fear but exhibit the remarkable effect that is improved, excellent acid resistance as compared with spherical shaped calcium carbonate in particular, to drops pH value, pH value in harmony with weakly acidic skin, etc. peel roughness occurs Since it is not present, it is advantageously used.

[0021]

The present invention is described in more detail by the following Examples and Reference cosmetics example. In addition, examples and reference cosmetics
The examples show prescription examples of various cosmetics. The blending amount of each component is shown by weight%.

Reference Powder Examples 1 to 4 Various powders having the physical properties shown in Table 1 were prepared. Using these powders as a component of reduction粧料sample.

[0023]

[Table 1]

Each physical property was measured as follows. (1) Average particle size: MICROTRACI manufactured by Nikkiso Co., Ltd.
(2) Dynamic friction coefficient: Strograph R type manufactured by Toyo Seiki Seisakusho Co., Ltd. TAPPI paper pulp test method N
O. According to 30-79, a double-sided tape was attached on a sample stand, and a fixed amount (18 to 20 g / m ² ) of powder was placed on the surface of the sample to measure (3) angle of repose: Hosokawa Micron Powder Tester PT- Measured using N type (4) Oil absorption Measured using castor oil according to JIS-K5101

Reference Powder Examples 5 to 8 Using an Ishikawa type stirring and crushing machine AGA type manufactured by Ishikawa Co., Ltd., the shape of the particles after crushing for 60 minutes was observed by a scanning electron microscope, and the obtained powder was The dynamic friction coefficient was measured. The results are shown in Table 2.

[0026]

[Table 2]

As is clear from the above, the spherical calcium carbonate or the spherical calcium carbonate-apatite composite has a stronger particle strength than other spherical powders, and is used in the production of cosmetics such as atomizers, homogenizers and jet mills. Even if a crusher is used, the spherical shape is less likely to be destroyed, and therefore, it is expected to give a good feeling of use such that it has good compatibility with the skin, does not easily lose its makeup, and has good elongation.

Reference Cosmetic Example 1 Powder foundation 1 Spherical calcium carbonate 10.0% 2 Mica 35.0% 3 Kaolin 5.0% 4 Titanium dioxide 10.0% 5 Mica titanium 3.0% 6 Zinc stearate 1. 0% 7 Talc 20.0% 8 Red iron oxide 1.0% 9 Yellow iron oxide 3.0% 10 Black iron oxide 0.2% 11 Squalane 6.0% 12 Lanolin acetate 1.0% 13 Octyldodecyl myristate 2. 0% 14 Neopentyl glycol diisooctanoate 2.0% 15 Sorbitan monooleate 0.5% 16 Perfume 0.3% The powder foundation having the above composition is mixed with the above ingredients 7 to 10 blender (Henschel mixer), After adding components 1 to 6 and mixing them well, components 11 to 15 are added and component 16 is sprayed and uniformly mixed. The mixture obtained in the ground in a grinder (atomizer), was prepared by sieving and, compressed into the inner plate.

Comparative Cosmetic Example 1 A powder foundation was obtained in the same manner as in Reference Cosmetic Example 1 except that spherical hydroxyapatite powder (average particle size 15 μm) prepared by spray granulation was used instead of spherical calcium carbonate. It was

Each powder foundation of Reference Cosmetic Example 1 and Comparative Cosmetic Example 1 was subjected to a practical test by 10 panelists. The results are shown in Table 3.

[0031]

[Table 3]

Reference Cosmetic Example 2 A powder foundation was obtained in the same manner as in Reference Cosmetic Example 1 except that spherical calcium carbonate-apatite composite was used instead of spherical calcium carbonate.

Each powder foundation of Reference Cosmetic Example 2 and Comparative Cosmetic Example 1 was subjected to a practical test by 10 panelists. The results are shown in Table 4.

[0034]

[Table 4]

From Tables 3 and 4, the above reference cosmetic examples are superior to the above comparative cosmetic examples in smoothness,
Moreover, it turns out that there is no powder float.

Example Dual-use foundation 1 Silicone-treated spherical calcium carbonate-apatite complex 3.0% 2 Silicone-treated mica 39.7% 3 Silicone-treated titanium dioxide 15.0% 4 Silicone-treated ultrafine titanium dioxide 5.0% 5 Silicone treated talc 18.2% 6 Silicone treated red iron oxide 1.0% 7 Silicone treated yellow iron oxide 3.0% 8 Silicone treated black iron oxide 0.2% 9 Zinc stearate 0.1% 10 Squalane 4.0% 11 Solid paraffin 0.5% 12 Dimethyl polysiloxane 4.0% 13 Glycerin triisooctanoate 5.0% 14 Octyl methoxycinnamate 1.0% 15 Perfume 0.3% The dual-use foundation having the above composition is the above component 5
8 to 8 are mixed with a blender (Henschel mixer), components 1 to 4 are added thereto and well mixed, and then components 9 to
14 was added, component 15 was sprayed on, homogeneously mixed, then the resulting mixture was ground in a grinder (atomizer), sieved and prepared by compression molding in a medium dish.

Reference Cosmetic Example 3 Emulsion type foundation 1 Spherical calcium carbonate-apatite composite 5.0% 2 Titanium dioxide 12.0% 3 Silica anhydride 2.0% 4 Talc 7.0% 5 Bengala 1.0% 6 Yellow iron oxide 1.0% 7 Black iron oxide 0.5% 8 Octamethylcyclotetrasiloxane 10.0% 9 Rosin pentaerythritol ester 1.5% 10 Neopentyl glycol diisooctanoate 5.0% 11 Squalane 2 0.5% 12 Glycerin triisooctanoate 2.0% 13 Polyoxyethylene-modified dimethylpolysiloxane 1.5% 14 Purified water 38.0% 15 1,3-Butylene glycol 4.0% 16 Ethanol 7.0% Above composition The emulsified type foundation having is prepared by mixing the above components 4 to 7 with a blender (Henschel mixer),
After adding Components 1 to 3 and mixing them well, this is pulverized by a pulverizer (atomizer) and sieved, and then Components 14 to 16 are added after stirring with a homomixer, and Components 8 to 13 are further added. Was added after dissolution, treated with a homomixer, degassed and filled in a container.

Reference Cosmetic Example 4 White powder 1 Spherical calcium carbonate-apatite complex 5.0% 2 Kaolin 5.0% 3 Titanium dioxide 3.0% 4 Zinc stearate 5.0% 5 Sericite 7.0% 6 Fragrance 0.2% 7 Talc 73.8% 8 Red iron oxide 0.3% 9 Yellow iron oxide 0.6% 10 Black iron oxide 0.1% White powder having the above composition blends the above components 7 to 10 with a blender (Henschel mixer). ) Is mixed with the ingredients 1 to 5
Was added and mixed well, then component 6 was sprayed and mixed uniformly, then the resulting mixture was crushed with a crusher (atomizer), sieved and compression molded into a medium dish.

Reference Cosmetic Example 5 Talcum powder 1 Spherical calcium carbonate-apatite complex 20.0% 2 Talc 73.8% 3 Magnesium stearate 3.0% 4 Squalane 3.0% 5 Perfume 0.2% The above composition Talcum powder having
After mixing with a blender (Henschel mixer),
Ingredient 5 was prepared by spraying, mixing homogeneously, then crushing the resulting mixture with a crusher (atomizer), sieving and compression molding in a medium dish.

Reference Cosmetic Example 6 Preshave 1 Ethanol 92.6% 2 Spherical calcium carbonate-apatite complex 5.0% 3 Glyceryl tri-2-ethylhexanoate 1.0% 4 1,3-Butylene glycol 1 0.0% 5 Vitamin E acetate 0.2% 6 Perfume 0.2% A preshave having the above composition was prepared by stirring and dissolving components 2 to 6 in component 1 above.

─────────────────────────────────────────────────── ─── Continuation of the front page (56) Reference JP-A-62-212315 (JP, A) JP-A-2-126933 (JP, A) JP-A 57-92519 (JP, A) JP-A 63- 27414 (JP, A) JP 4-308513 (JP, A) JP 1-168606 (JP, A) (58) Fields investigated (Int.Cl. ⁷ , DB name) A61K 7/00-7 / 50

Claims (2)

(57) [Claims] 1. A sheet recone processing spherical calcium carbonate - cosmetics formed by blending the granular material of the apatite composite. 2. The cosmetic composition according to claim 1, wherein the spherical calcium carbonate-apatite composite is a spherical light calcium carbonate whose surface is coated with apatite.