JP2004277400A - Powdery cosmetic - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a powdery cosmetic without showing powdery feeling, excellent in closely adhering feeling to skin, exhibiting a good stretch/extension on applying to the skin and also without exhibiting a caking phenomenon with time. <P>SOLUTION: This powdery cosmetic contains a component (a) of an extender powdery material, a component (b) of 0.1-30 mass % oil agent and (c) 0.001-3 mass % polyhydroxystearic acid. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a powder cosmetic containing an extender powder, an oil agent and polyhydroxystearic acid. More specifically, the powder cosmetic does not have powderiness, has excellent adhesion to the skin, and spreads to the skin at the time of application. When the powder cosmetic is solid and the powder cosmetic is solid, the surface does not harden over time, and the caking phenomenon (the phenomenon that the cosmetic does not transfer even if the surface is rubbed with a prop such as a sponge) is observed. It is intended to provide a powder cosmetic which does not generate.

  Since the powder cosmetic is composed of powder as the main skeleton, it has a powdery finish, and is a cosmetic dosage form in which it is difficult to improve the feeling of adhesion to the skin. For this reason, various studies have been made to enhance the feeling of adhesion of the powder cosmetic to the skin. Specifically, a method of compounding a highly tacky oil, a method of compounding a specific surfactant (for example, see Patent Document 1), and a method of combining silicone oil and a specific fluorine-based oil (for example, Patent Document 2) Reference) and the like.

JP-A-2-152917 (pages 1 to 8) JP-A-3-264511 (pages 1 to 5)

  However, in the method of blending highly sticky oil, the feeling of adhesion to the skin is increased, but the spread to the skin at the time of application is poor. In addition, in the method of blending a specific surfactant described in Patent Document 1, when the powder cosmetic is solid, the surfactant absorbs moisture and the like in the air over time, and the surface becomes hard. In some cases, a caking phenomenon occurred. In the method of combining silicone oil and a specific fluorine-based oil described in Patent Document 2, the powderyness and the feeling of adhesion to the skin were not at a satisfactory level. Furthermore, when a fine particle titanium oxide or the like is blended in order to impart an ultraviolet shielding effect to the powder cosmetic, there is no method which does not have powderiness and spreads well on the skin at the time of application.

  For this reason, there is no powderiness, excellent feeling of adhesion to the skin, good spread and spread on the skin at the time of application, and when the powder cosmetic is solid, a caking phenomenon occurs over time. The development of powder cosmetics was not desired. In particular, in the case of powder cosmetics containing fine metal oxides, it has been desired to develop powder cosmetics that solve these problems.

  In view of this situation, the present inventors have conducted intensive studies and found that by using polyhydroxystearic acid together with an oil agent, the wettability of the oil to the powder is improved, so that the powder is not powdery and adheres to the skin. The present invention has been found to provide a powder cosmetic which has an excellent feeling and spreads well on the skin at the time of application, and solves the above-mentioned problems, thereby completing the present invention.

That is, the present invention provides the following components (a) to (c);
(A) Constituent powder (b) Oil agent 0.1 to 30% by mass
(C) 0.001 to 3% by mass of polyhydroxystearic acid
The present invention provides a powder cosmetic comprising the following.

  Still another object of the present invention is to provide a powder cosmetic containing 0.1 to 15% by mass of a fine metal oxide as the component (d).

  Further, the present invention provides any one of the powder cosmetics, wherein the powder cosmetic is solid.

  The powder cosmetic of the present invention has no powderiness, has excellent adhesion to the skin, has good spread and spread on the skin at the time of application, and does not cause a caking phenomenon over time. Met.

  The extender powder of the component (a) used in the present invention is usually used as an excipient or a feel modifier in powder cosmetics. Specifically, it is not particularly limited by the shape such as a spherical shape, a plate shape, and a needle shape, the fume shape, the particle size such as a fine particle and a pigment grade, and the particle structure such as porous and nonporous. Site, mica, synthetic mica, synthetic fluorophlogopite, magnesium carbonate, aluminum silicate, magnesium silicate, aluminum magnesium silicate, calcium silicate, boron nitride, magnesium oxide, silicic anhydride, alumina, barium sulfate, bentonite, oxidation Titanium-coated mica, iron oxide-coated mica, iron oxide-coated mica titanium, organic pigment-coated mica titanium, mica titanium, bismuth oxychloride, calcium carbonate, smectite, boron nitride, nylon powder, polymethyl methacrylate powder, acrylonitrile-methacrylic acid copolymer Combined powder, vinylidene chloride-methacrylic acid copolymer powder -, Polyethylene powder, polystyrene powder, organopolysiloxane elastomer powder, polymethylsilsesquioxane powder, polyurethane powder, wool powder, silk powder, crystalline cellulose powder, N-acyl lysine powder composite powder, and the like. One type or two or more types can be used. In addition, these components (a) may have been subjected to a surface treatment by a known method using a fluorine compound, a silicone compound, a metal soap, a wax, a surfactant, an oil, a hydrocarbon, or the like.

  The content of the component (a) in the powder cosmetic of the present invention is not particularly limited, but is preferably 50 to 99% by mass (hereinafter simply referred to as “%”). When the content of the component (a) is within this range, it is possible to obtain a powder cosmetic that is particularly excellent in spreading and spreading on the skin during application.

  The oil agent of the component (b) used in the present invention is an oil agent usually used in cosmetics. In the powder cosmetic of the present invention, it is a component that reduces powderiness and enhances the feeling of adhesion to the skin. is there. Such oils include, specifically, hydrocarbons such as paraffin wax, ceresin wax, ozokerite, microcrystalline wax, montan wax, fishatropes wax, polyethylene wax, liquid paraffin, squalane, petrolatum, polyisobutylene, and polybutene. , Carnauba wax, beeswax, lanolin wax, natural waxes such as candelilla, glyceryl tribehenate, pentaerythrit rosinate, jojoba oil, cetyl isooctanoate, isopropyl myristate, glyceryl trioctanoate, diglyceryl triisostearate, diglycerol Esters such as pentaerythrit fatty acid esters, fatty acids such as stearic acid, behenic acid, 12-hydroxystearic acid, cetanol, stearyl alcohol Higher alcohols such as behenyl alcohol, fats and oils such as olive oil, castor oil, mink oil, and mocrow, lanolin derivatives such as isopropyl lanolin fatty acid and lanolin alcohol, di (cholesteryl behenyl octyldodecyl) N-lauroylu L-glutamate and the like. Amino acid derivatives, silicones such as methylpolysiloxane, methylphenylpolysiloxane, octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, fluorine-modified silicone, and fluorine-based oils such as perfluoropolyether, perfluorodecane, and perfluorooctane And the like, and one or more of these can be used.

  The content of the component (b) in the powder cosmetic of the present invention is 0.1 to 30%, preferably 5 to 15%. When the content of the component (b) is less than 0.1%, the feeling of adhesion to the skin is poor, and when the content of the component (b) exceeds 30%, the spread to the skin at the time of application becomes poor. When the powder cosmetic is in a solid state, a caking phenomenon may occur, which is not preferable.

The polyhydroxystearic acid of the component (c) used in the present invention is a polymer obtained by dehydration and condensation polymerization of a hydroxyl group and a carboxyl group in hydroxystearic acid. It is a component that enhances the wettability between the powder and the oil agent. Hydroxystearic acid in component (c) is preferably 12-hydroxystearic acid, and the degree of polymerization is preferably from 2 to 12. Examples of such a component (c) include ARLACEL P-100 (manufactured by Unichema) having an average degree of polymerization of 6 as a commercially available product.

  The content of the component (c) in the powder cosmetic of the present invention is 0.001 to 3%, preferably 0.01 to 1%. When the content of the component (b) is less than 0.001%, the wettability between the powder and the oil agent cannot be improved, the feeling of adhesion to the skin is poor, and the content of the component (b) is 3%. When the value exceeds, when the powder cosmetic is in a solid state, it hardens with time, and a caking phenomenon may occur, which is not preferable. The component (c) is usually mixed with the oil agent of the component (b) and mixed with the component (a) or the like. it can.

  The powder cosmetic of the present invention may contain, in addition to the above essential components, a particulate metal oxide as component (d) for the purpose of improving the ultraviolet shielding effect. The fine particle metal oxide of the component (d) is generally used as an ultraviolet shielding agent in cosmetics, and is preferably a metal oxide having an average particle size of 0.01 to 0.09 μm. Specific examples include fine particle titanium oxide, fine particle zinc oxide, fine particle cerium oxide, fine particle zirconium oxide, fine particle iron oxide, and the like, and one or more of these can be used. In addition, these components (a) may have been subjected to a surface treatment by a known method using a fluorine compound, a silicone compound, a metal soap, a wax, a surfactant, an oil, a hydrocarbon, or the like.

  The content of the component (d) in the powder cosmetic of the present invention is preferably 0.1 to 15%. When the component (d) is contained in this range, it is possible to obtain a powder cosmetic which is excellent in an ultraviolet ray shielding effect, particularly excellent in a feeling of close contact with the skin and spreading on the skin when applied.

  Furthermore, in addition to the above components, the powder cosmetics of the present invention usually contain components used in cosmetics, for example, powders other than components (a) and (d), surfactants, oil gels Agents, aqueous components, ultraviolet absorbers, oil-soluble film forming agents such as trimethylsiloxysilicic acid, paraoxybenzoic acid derivatives, preservatives such as phenoxyethanol, vitamins, cosmetic ingredients, fragrances, etc. in a range that does not impair the effects of the present invention. Can be appropriately blended.

  The powders other than the components (a) and (d) used in the present invention are colored powders and the like usually used in cosmetics. Specifically, titanium oxide, black titanium oxide, konjo, ultramarine, red iron oxide, yellow iron oxide, black iron oxide, zinc oxide, chromium oxide, chromium hydroxide, carbon black, organic tar pigment, lake of organic dye Pigment powders such as pigments and the like can be mentioned, and one or more of these can be used. Further, these powders may be subjected to a surface treatment by a known method using a fluorine compound, a silicone compound, a metal soap, a wax, a surfactant, an oil, a hydrocarbon, or the like.

  The aqueous component used in the present invention may be any one usually used in cosmetics, for example, polyhydric alcohols such as propylene glycol, 1,3-butylene glycol, dipropylene glycol, glycerin, and diglycerin. And glycerols such as polyglycerin, etc., and one or more of these can be used as necessary.

  The ultraviolet absorber used in the present invention may be any one usually used in cosmetics, for example, 2-hydroxy-4-methoxybenzophenone, 2,4,6-trianilino-p- (carbo- Benzophenones such as 2'-ethylhexyl-1'-oxy) -1,3,5-triazine; salicylic acids such as 2-ethylhexyl salicylate; PABAs such as ethyl p-dihydroxypropylbenzoate; p-methoxycinnamic acid Examples thereof include cinnamic acids such as -2-ethylhexyl and dibenzoylmethanes such as 4-tert-4'-methoxydibenzoylmethane. One or more of these may be used.

  Examples of the powder cosmetics of the present invention include makeup cosmetics such as foundation, white powder, blusher, lipstick, eyeshadow, eyebrow, and concealer.

  Examples of the form of the powder cosmetic of the present invention include powder, cake, stick, and sphere, and the effects of the present invention are remarkably exhibited only in the form of cake, stick, and sphere. Is a solid powder cosmetic.

Examples 1 to 7 and Comparative Examples 1 to 6: Cake-like foundations The foundations having the compositions shown in Tables 1 and 2 were prepared by the following production method, and "good spreadability upon application", "powderiness" Nothing, "feeling of close contact with the skin," and "no caking phenomenon over time" were evaluated by the following evaluation methods and criteria, and the results are shown in Tables 1 and 2. Indicated.

(Production method)
A: Components 10 to 18 are heated and mixed.
B: Components 1 to 9 are uniformly dispersed with a Henschel mixer (manufactured by Mitsui Mining Co., Ltd.).
C: Add A to B and mix.
D: C is ground.
E: D was filled in a metal plate and compression molded to obtain a cake-like foundation.

〔Evaluation method〕
Twenty panelists specializing in cosmetics evaluation used the cake-like foundations of the above Examples and Comparative Examples, "Good spread and spread when applying", "Less powdery", "Adhesion to skin" For each of the above items, each of them was evaluated on a 5-point scale according to the following evaluation criteria, and a rating was given for each foundation. Further, the average score of the ratings of all panels was determined according to the following criteria.
Evaluation criteria:
[Evaluation result]: [Score]
Very good: 5 points Good: 4 points Normal: 3 points Slightly poor: 2 points Bad: 1 point Judgment criteria:
[Average score]: [Judgment]
4.5 or more: ◎
3.5 or more to less than 4.5: ○
1.5 or more to less than 3.5: △
Less than 1.5: ×

〔Evaluation method〕
The cake-like foundations of the above Examples and Comparative Examples were stored at 50 ° C. for one month, then returned to room temperature, and observed for caking phenomenon when the surface was rubbed 200 times with a cosmetic mat, according to the following criteria. Judged.
Judgment criteria:
[Presence of caking phenomenon]: [Judgment]
No caking at all: ○
Partly caked: △
1/3 or more caked: ×

  As is clear from the results of Tables 1 and 2, the cake-like foundations of Examples 1 to 7, which are the products of the present invention, have "good spreadability at the time of application", "no powderiness", The powder cosmetic was excellent in all items of "feeling of adhesion to skin" and "no caking phenomenon over time". Moreover, Examples 1-4 and Examples 6-7 containing fine particle titanium oxide were also excellent in the ultraviolet ray shielding effect. On the other hand, in Comparative Example 1, which did not contain the component (c), none of elongation and spread at the time of application, lack of powderiness, and feeling of adhesion to skin were not good. In Comparative Example 2 in which the content of the component (c) was more than 3%, the cake surface became hard with time, and a caking phenomenon occurred. Further, in Comparative Example 3 in which polyoxyethylene oleyl ether was used instead of the component (c), the cake surface became hard with time, and a caking phenomenon occurred. Then, in Comparative Examples 4 and 5, in which polyoxyalkylene-modified silicone and sorbitan sesquioleate were used instead of the component (c), the adhesion to the skin was not good. Further, in Comparative Example 6 in which a silicone oil and a specific fluorine-based oil were combined, the spread during application was not good.

Example 8: Cake-like blusher (ingredient) (%)
1. Sericite 20
2. Mica 5
3. Magnesium stearate 3
4. Nylon powder 10
5. Fine particle zinc oxide (average particle size 0.03 μm) 5
6. 6. Talc remaining amount Red iron oxide 2
8. Yellow iron oxide 2
9. Black iron oxide 1
10. Preservative 0.2
11. Vaseline 1
12. Methyl polysiloxane (Note 6) 3
13. Liquid paraffin 6
14． Polyhydroxystearic acid (Note 3) 0.1

(Production method)
A: Components 11 to 14 are heated and mixed.
B: Components 1 to 10 are uniformly dispersed with a Henschel mixer (manufactured by Mitsui Mining Co., Ltd.).
C: Add A to B and mix.
D: C is ground.
E: D was filled in a metal plate and compression molded to obtain a cake-like blush.
The cake-like rouge of Example 8, which is an embodiment of the present invention, has "good spreadability at the time of application", "no powderiness", "feeling of close contact with the skin", and " It was an excellent powder cosmetic for all items of "Nasa".

Example 9: Powder eye shadow (component) (%)
1. Talc 30
2. Titanium mica (Note 8) 15
3. Mica 10
4. Serisite remaining amount 5. Boron nitride 5
6. Silicic anhydride (Note 9) 1
7. Yellow iron oxide 3
8. Red iron oxide 4
9. Black iron oxide 1
10. Preservative 0.2
11. Neopentyl glycol di-2-ethylhexanoate 1
12. Perfluoropolyether (Note 7) 1
13. Squalane 2
14． Polyhydroxystearic acid (Note 3) 1
* Note 8: Timilon Graymer Flake MP-45 (Merck)
* Note 9: Sunsphere NP-100 (manufactured by Dokai Chemical Industry Co., Ltd.)

(Production method)
A: Components 11 to 14 are heated and mixed.
B: Components 1 to 10 are uniformly dispersed with a Henschel mixer (manufactured by Mitsui Mining Co., Ltd.).
C: Add A to B and mix.
D: C is ground.
E: D was filled in a container to obtain a powdery eye shadow.
The powdered eye shadow of Example 9 which is an embodiment of the present invention was excellent in all of the items of “good spreadability at the time of application”, “no powdery”, and “feeling of close contact with skin”. It was a powder cosmetic.

Example 10: Cake-like eyebrow (component) (%)
1. Titanium oxide 20
2. Talc 20
3. 3. Sericite Remaining Black iron oxide 20
5. Preservative 0.2
6. Polyethylene wax (Note 10) 5
7. α-olefin oligomer (Note 11) 5
8. Methyl polysiloxane (Note 6) 1
9. Squalane 9
10. Polyhydroxystearic acid (Note 3) 0.5
* Note 10: PERFORMALENE 655 (manufactured by New Fuse Technology)
* Note 11: Nomcoat HPD-C (manufactured by Nisshin Oillio)

(Production method)
A: Components 6 to 10 are heated and mixed.
B: Components 1 to 5 are uniformly dispersed with a Henschel mixer (manufactured by Mitsui Mining Co., Ltd.).
C: Add A to B and mix.
D: C is ground.
E: D was filled in a metal plate and compression molded to obtain a cake-like eyebrow.
The cake-like eyebrow of Example 10 which is an embodiment of the present invention has "good spreadability at the time of application", "no powderiness", "feeling of close contact with skin", and " It was an excellent powder cosmetic for all items of "Nasa".

Claims (3)

The following components (a) to (c);
(A) Constituent powder (b) Oil agent 0.1 to 30% by mass
(C) 0.001 to 3% by mass of polyhydroxystearic acid
Powder cosmetics characterized by containing.   The powder cosmetic according to claim 1, further comprising 0.1 to 15% by mass of a particulate metal oxide as the component (d).   The powder cosmetic according to claim 1 or 2, wherein the powder cosmetic is solid.