JP6774708B2 - Makeup cosmetics - Google Patents

Description

The present invention relates to make-up cosmetics.

Conventionally, in make-up cosmetics such as eye shadows, bright pigments having pearl luster such as mica titanium and titanium oxide-coated glass flakes have been used in order to obtain a uniform gloss and high transparency of the coating film. However, in order for the bright pigment to exert a sufficient effect, a large particle size is required to some extent, but there is a problem that a large particle size causes an unnatural feeling when applied on the skin.

On the other hand, there is known a technique of blending spherical powder into a make-up cosmetic in order to smooth the feel at the time of application (for example, Patent Document 1). Although a smooth coating feel can be obtained to some extent by such a technique, there is a problem that the impact resistance is inferior.

Further, a technique of blending a plate-like powder having a large aspect ratio into a make-up cosmetic in order to smooth the feel at the time of application is also known (for example, Patent Document 2), but even if this technique is used, There was a problem that it was insufficient to obtain a high degree of transparency.

Japanese Unexamined Patent Publication No. 2004-083423 Japanese Unexamined Patent Publication No. 2006-282510

As described above, conventionally, it has been very difficult to achieve both a high transparency of the coating film and a smooth feel during coating. However, the present invention realizes a highly transparent coating film and has a smooth feel. Regarding make-up cosmetics that are present and have impact resistance.

As a result of diligent studies in this situation, the present inventors have attempted to use boron nitride together with a bright pigment and synthetic phlogopite in make-up cosmetics, and as a result, the average of a specific range as boron nitride. It has been found that by using a particle size, a substance satisfying the above requirements can be obtained.

That is, the present invention provides a make-up cosmetic containing the following components (A), (B) and (C).
(A) Boron nitride with an average particle size of 30 μm or more and 50 μm or less
(B) Bright pigment
(C) Synthetic phlogopite

Since the make-up cosmetic of the present invention is excellent in the transparency of the coating film, it is possible to give gloss and sparkle without the feeling of concealment by the cosmetic, and the feel at the time of application is also good and smooth, and the make-up It has sufficient impact resistance as a cosmetic.

[Component (A): Boron nitride with an average particle size of 30 μm or more and 50 μm or less]
The boron nitride of the component (A) can be used without particular limitation as long as the average particle size is within the above range and is generally used in cosmetics. The form of boron nitride includes hexagonal crystal, wurtzite type structure, cubic crystal, rhombohedral crystal, and random layer structure, and hexagonal crystal is most preferable from the viewpoint of usability.

The average particle size of boron nitride is 30 μm or more, preferably 35 μm or less, and 50 μm or less from the viewpoint of excellent transparency and luster of the coating film, smoothness during coating, and impact resistance. , Preferably 45 μm or less.

In this specification, a laser diffraction / scattering type particle size distribution meter: LMS-350 (manufactured by Seishin Enterprise Co., Ltd.) is used for measuring the particle size, and the “average particle size” is D50 (cumulative) in the obtained cumulative particle size distribution curve. It means a point (particle size with a particle size distribution of 50%), that is, a volume median diameter.

These boron nitrides can be used alone or in combination of two or more. The content of the component (A) in the make-up cosmetics is preferably 1% by mass or more, more preferably 5% by mass or more, from the viewpoint of obtaining a smooth feel at the time of application and a sufficient transparency of the coating film. It is more preferably 10% by mass or more, preferably 40% by mass or less, more preferably 35% by mass or less, still more preferably 20% by mass or less.

[Component (B): Bright pigment]
The bright pigment of the component (B) used in the present invention can be used without particular limitation as long as it is generally used in cosmetics, but from the viewpoint of obtaining a high transparency of the cosmetic coating film, the plate It is preferable that the outermost layer of the state powder is coated with one or more kinds selected from titanium oxide, iron oxide and silica, and the plate-like powder as the base material is mica or synthetic mica. (Synthetic gold mica), alumina, glass flakes and the like, and glass flakes are mentioned as more preferable.

Specifically, titanium oxide-coated mica whose mica surface is coated with titanium oxide, iron oxide-coated mica whose mica surface is coated with iron oxide, and iron oxide whose mica surface is coated with iron oxide and then further coated with titanium oxide. Titanium oxide coated mica, synthetic mica coated with titanium oxide on the surface, synthetic mica coated with iron oxide on the surface of synthetic mica, synthetic mica coated with iron oxide, coated with iron oxide on the surface of synthetic mica, and then further titanium oxide Coated iron oxide / iron oxide coated synthetic mica, titanium oxide coated glass flakes with titanium oxide on the glass flake surface, iron oxide coated glass flakes with iron oxide coated on the glass flake surface, iron oxide coated on the glass flake surface Later, iron oxide / titanium oxide coated glass flakes coated with titanium oxide, titanium oxide / silica coated glass flakes coated with silica after coating the surface of the glass flakes with titanium oxide, and the like are exemplified.

These bright pigments can be used alone or in combination of two or more. The content of the component (B) in the make-up cosmetics is preferably 30% by mass or more, more preferably 35% by mass or more, still more preferably 40% by mass or more, from the viewpoint of obtaining a sufficient transparency. Further, from the viewpoint of obtaining sufficient impact resistance, it is preferably 70% by mass or less, more preferably 65% by mass or less, and further preferably 60% by mass or less. The specific range of the content of the component (B) in the total amount of the cosmetic base material is preferably 30 to 70% by mass, more preferably 35 to 65% by mass, and further preferably 40 to 60% by mass.

The mass ratio (B) / (A) of the component (A) to the component (B) is preferably 1.5 or more from the viewpoints of transparency and gloss of the coating film, smoothness during coating, and impact resistance. , More preferably 2 or more, still more preferably 2.5 or more, and preferably 8 or less, more preferably 7 or less, still more preferably 5 or less.

[Component (C): Synthetic phlogopite]
The component (C) used in the present invention can be used without particular limitation as long as it is synthetic phlogopite and is generally used in cosmetics, and silicone is used as long as the effect of the present invention is not impaired. Those surface-treated with a treatment agent such as, etc. can also be used (however, those corresponding to component (B) are excluded).

The synthetic phlogopite of the component (C) preferably has an average particle size of 10 μm or more, more preferably 20 μm or more, 50 μm or less, and preferably an aspect ratio of 50 or more from the viewpoint of obtaining a high transparency. , 60 or more and 100 or less are more preferable.

These synthetic phlogopites can be used alone or in combination of two or more. The content of the component (C) in the make-up cosmetics is preferably 10% by mass or more, more preferably 35% by mass or more, still more preferably 40% by mass or more, from the viewpoint of obtaining a sufficient transparency. Further, it is preferably 70% by mass or less, more preferably 65% by mass or less, and further preferably 60% by mass or less.

[Other ingredients]
In the make-up cosmetic of the present invention, a cosmetic base material used for ordinary cosmetics, such as powders, oils, surfactants, additives, etc. other than the components (A) to (C), is appropriately used. Can be done.

-Powders Examples of powders other than the components (A) to (C) include organics such as Red No. 104, Red No. 202, Red No. 226, Yellow No. 4, Yellow No. 5, Blue No. 1, and Black No. 401. Dyes Pigments; Lake No. 4 Al Lake, Blue No. 1 Al Lake, etc. Lake Organic Pigments; Yellow Iron Oxide, Red Iron Oxide, Black Iron Oxide, Chromium Oxide, Chromium Hydroxide, Carbon Black, Ultramarine, Navy Blue, Manganese Violet, etc. Inorganic colored pigments; white pigments such as zinc oxide and titanium oxide; extender pigments such as talc, mica, sericite and boron nitride; metal salt pigments such as barium sulfate, calcium carbonate, magnesium carbonate, aluminum silicate and magnesium silicate; silica , Alumina and other inorganic pigments; Polyethylene powder, Polypropylene powder, Polymethyl methacrylate powder, Nylon powder, Polytetrafluoroethylene powder, Silicone powder, Silicone rubber powder, Silk powder, Urethane powder, Cellulose powder, Polyethylene fluoride and other resins Powders; acylated lysine powders such as lauroyl lysine; metal soap powders which are higher fatty acid metal salts and the like. Moreover, these powders may be surface-treated as appropriate. The size, shape, etc. of these powders are not limited, and they can be used alone or in combination of two or more.

The total content of the powder including the components (A) to (C) in the make-up cosmetic is preferably 70% by mass or more, more preferably 70% by mass or more, from the viewpoint of sufficiently exerting the cosmetic effect of imparting color and luster. Is 75% by mass or more, more preferably 80% by mass or more, and from the viewpoint of good shape retention, preferably 97% by mass or less, more preferably 96% by mass or less, still more preferably 95% by mass or less. is there. The specific range of the total content of the powder in the make-up cosmetics is preferably 70 to 97% by mass, more preferably 75 to 96% by mass, and further preferably 80 to 95% by mass.

-Oil agent The oil agent may be any one used in ordinary cosmetics, and for example, hydrocarbon oil, higher fatty acid, higher alcohol, various ester oils, silicone oil, fluorine-based oil agent such as perfluoroalkyl ether, etc. Can be mentioned.

These oils can be used alone or in combination of two or more. The total content of the oil in the make-up cosmetics is preferably 5% by mass or more, more preferably 6% by mass, in order to sufficiently exert effects such as shape retention, moist feeling of the final product, and adhesion to the skin. As mentioned above, it is more preferably 7% by mass or more, and in order to prevent the cosmetic surface from solidifying and deteriorating the usability, it is preferably 30% by mass or less, more preferably 25% by mass or less, still more preferably. It is 20% by mass or less. The specific range of the total content of the oil in the make-up cosmetics is preferably 5 to 30% by mass, more preferably 6 to 25% by mass, and further preferably 7 to 20% by mass.

-Surfactant In addition, a surfactant may be added to the cosmetic base material for the purpose of assisting the uniform dispersion of the components. As the surfactant, any surfactant that is used in ordinary cosmetics can be used, and examples thereof include nonionic surfactants, anionic surfactants, cationic surfactants, and amphoteric surfactants. .. For example, glycerin fatty acid ester and its alkylene glycol adduct, polyglycerin fatty acid ester and its alkylene glycol adduct, sorbitan fatty acid ester and its alkylene glycol adduct, polyoxyethylene hydrogenated castor oil, lecithin and the like can be mentioned.

-Other ingredients In addition, in order to improve the performance and quality of the product, the ingredients used in ordinary cosmetics, such as moisturizers, pH regulators, antioxidants, and antibacterial fungicides, are contained in the cosmetic base material. Various additives such as agents, ultraviolet absorbers, fragrances, and beauty ingredients can be appropriately contained within a range that does not impair the effects of the present invention.

[Form / Manufacturing method]
The form of the make-up cosmetic of the present invention is not particularly limited as long as it exhibits excellent transparency / glossiness of the coating film and a smooth feel at the time of application, and solid powder cosmetics, powder cosmetics, and the like. It can take the form of oil-based cosmetics, but in the case of solid powder cosmetics, it is also possible to obtain excellent impact resistance. Further, the makeup cosmetic of the present invention can be used as an eye shadow, cheek, foundation, makeup base and the like.

The method for producing a make-up cosmetic of the present invention can be prepared by appropriately stirring and mixing each component, but in the method for producing a solid powder cosmetic, after mixing the powder and an oil agent as a binder. There are a dry method of compaction molding and a wet method of adding a volatile solvent to a cosmetic base material composed of powder and an oil agent to form a slurry, filling the container, and then drying and removing the volatile solvent to obtain a cosmetic. Examples of the volatile solvent used in the wet method include water; low boiling point alcohols such as ethyl alcohol, propyl alcohol, isopropyl alcohol and butyl alcohol.

Hereinafter, the present invention will be described in more detail with reference to Examples, but the technical scope of the present invention is not limited by these Examples. The unit of the content in the table is mass%. Prior to the examples, the evaluation method adopted in each example will be described.

(1) Transparency / glossiness, feel (smoothness), and usability (good elongation) of the coating film:
Twenty female panelists evaluated the transparency, glossiness, feel (smoothness), and usability (good spreadability) of the coating film when each cosmetic was applied to the skin. The results are shown according to the following criteria.
(Evaluation criteria)
◎: 17 or more people answered good ○: 12 to 16 people answered good △: 8 to 11 people answered good ×: 7 or less people answered good

(2) Impact resistance:
Each cosmetic was incorporated into a cosmetic compact and dropped repeatedly on a vinyl chloride plate with a height of 40 cm to a thickness of 10 mm in the horizontal direction, and the number of times until abnormalities such as chipping, cracking, and cracking occurred was evaluated. The evaluation criteria are as follows.
(Evaluation criteria)
⊚: 11 times or more ○: 7 to 10 times △: 5 to 6 times ×: 4 times or less

Example 1, Comparative Examples 1-2
A make-up cosmetic (eye shadow) was produced with the composition shown in Table 1 and the above test was performed. The results are also shown in Table 1.

(Manufacturing method of make-up cosmetics)
A: Ingredients 16 to 19 are mixed and heated to 80 ° C to dissolve.
B: Ingredients 1 to 15 are uniformly mixed.
C: A was added to B and dispersed uniformly, and after pulverization, a cosmetic base material was obtained.
D: 100 parts by mass of C and 40 parts by mass of the solvent were mixed to prepare a slurry.
E: D was filled and molded in a gold plate and dried to obtain a make-up cosmetic.

As is clear from the results in Table 1, in Example 1, the transparency / glossiness, feel, and usability of the coating film were all good.

Claims (5)

A make-up cosmetic containing the following components (A), (B) and (C), and having a mass ratio (B) / (A) of the component (A) to the component (B) of 1.5 or more and 8 or less .
(A) Boron nitride with an average particle size of 30 μm or more and 50 μm or less 5% by mass or more and 40% by mass or less
(B) Glitter pigment 30% by mass or more and 70% by mass or less
(C) Synthetic phlogopite 10% by mass or more and 65% by mass or less The make-up cosmetic according to claim 1, wherein the component (B) is titanium oxide-coated glass flakes. The make-up cosmetic according to claim 1 or 2, wherein the content of the component (A) is 10 % by mass or more and 40% by mass or less. The make-up cosmetic according to any one of claims 1 to 3, wherein the average particle size of the component (C) is 10 μm or more. The make-up cosmetic according to any one of claims 1 to 4, wherein the content mass ratio (B) / (A) of the component (A) to the component (B) is 2.5 or more and 8 or less.