JPH02295913A - Solid power cosmetic - Google Patents

Abstract

PURPOSE:To obtain the subject solid powder cosmetic excellent in water resistance, perspiration resistance, sebum resistance, use-feeling and stability by blending a fluorine-modified silicone compound with a hydrophobic-treatment powder. CONSTITUTION:With a fluorine-modified silicone compound of the formula (n and m are respectively 1-150 and 0-150 as average number; a is 0-5; Rf is 1-8C perfluoroalkyl) a silicone compound, an organic polymer compound, a metallic soap, a lipophilic wax and a powder subjected to hydrophobic-treatment using a partially or complete ester of a polyalcohol, etc., are blended as the essential components and a pigment, water, a surfactant, a humectant, a lower alcohol, a thickening agent, a perfume, an antioxidant, etc., are added to the resultant mixture as necessary, thus obtaining the objective cosmetic. The above- mentioned compound of the formula is blended in an amount of >=50wt.% of the total oil components contained in the solid powder cosmetic and the hydrophobic-treatment powder is mixed in an amount of 50-92wt.%.

Description

[Detailed Description of the Invention] [Industrial Field of Application 1] The present invention is characterized by blending a fluorine-modified silicone compound with a hydrophobized powder, and has excellent water resistance, sweat resistance, and sebum resistance. This invention relates to solid powder cosmetics with good feel and stability. More specifically, it is a blend of fluorine-modified silicone compound and powder that has been hydrophobized with silicone compound, organic polymer compound, metal soap, lipophilic wax, polyhydric alcohol partial ester or complete ester, etc., and has a smooth feel when used. This article relates to solid powder cosmetics with excellent long-lasting makeup.

[Conventional technology 1 Conventional solid powder cosmetics contain extender pigments such as talc and mica,
It consists of coloring pigments such as iron oxide, oil, surfactants, fragrances, antioxidants, preservatives, and fungicides, but their functions are as follows:
Various properties have been required. In particular, makeup longevity is one of the most important functions, and many studies have been conducted to improve this function. For example, there are methods to increase water repellency by hydrophobicizing powder with silicone resin, methods to improve water repellency by adding silicone oil such as dimethylpolysiloxane or methylphenylpolysiloxane to oil, or methods to combine both. However, these silicone resins or silicone oils do not necessarily have high oil resistance, that is, they do not have sufficient sebum resistance. There are also methods to improve makeup longevity by increasing or decreasing the amount of oil to adjust water resistance and sebum resistance, or by dissolving and blending a film-forming silicone resin into volatile silicone, but these methods have a wide range of formulations. However, the feel of the product was also limited, and the longevity of the makeup was not satisfactory.

[Means to be Solved by the Invention 1] In view of the problems of the prior art, the present inventors have developed a solid powder cosmetic that has excellent water resistance, sweat resistance, rough sebum resistance, and has a good feel when used. As a result of intensive research in order to obtain a powder, it was discovered that this problem could be solved by blending a fluorine-modified silicone compound with a hydrophobized powder, and the present invention was completed.

[Means for Solving the Problems] That is, the present invention comprises (A) one or more fluorine-modified silicone compounds represented by the following general formula [I];
(B) A solid powder cosmetic containing one or more hydrophobized powders.

CI(3CH3CH3CH3 CH3-5i-0-(Si-0)n-(Si-0)m
-3i-CthCH3(Cth), Rf CH3CH
3[1] (In formula [I], nXm is an average number, nba1 to 1501m is a number from 0 to 150, a is an integer from O to 5, and Rf
represents a perfluoroalkyl group having 1 to 8 carbon atoms. ) Hereinafter, the structure of the present invention will be explained in detail.

Dilthylpolysiloxane, methylphenylpolysiloxane, and the like, which have been conventionally used for the purpose of increasing the water resistance and sweat resistance of solid powder cosmetics, have not always had excellent oil resistance and sebum resistance.

The fluorine-modified silicone compound used in the present invention has improved oil resistance and sebum resistance by introducing a fluoroalkyl group into dimethylpolysiloxane. The fluorine-modified silicone compound used in the present invention depends on the ratio of n, and in order to impart oil resistance, n/(n0m) is 0.05.
-1 is preferable, and if the fluorine modification rate is high, oil resistance and sebum resistance will be high, but compatibility with other oils will be poor, so 0.1 - 0.8 is more preferable. Rf is a perfluoroalkyl group having 1 to 8 carbon atoms, which may be linear or branched, such as trifluoromethyl, pentafluoroethyl, heptafluoropropyl, nonafluorobutyl, heptadecafluorooctyl, and the like. These can be obtained as commercial products such as those listed below. That is, examples of fluorine-modified silicone compounds include X-22-819 and X-22- manufactured by Shin-Etsu Chemical Co., Ltd.
820, X-22-821, X-22-822, FL-
100, FS 1265 manufactured by Toray Silicone Co., Ltd., and the like.

The amount of fluorine-modified silicone compound blended is 10% to 100% of the total oil content in the solid powder cosmetic.
preferably 50% by weight.
The above is desirable. If the amount is less than 1%, the effect of the fluorine-modified silicone compound on makeup retention will not be exhibited.

The amount of the oil containing the fluorine-modified silicone compound is 1 to 70% of the total amount of the solid powder cosmetic. If it exceeds 70%, the adhesion of the solid powder cosmetic to the skin will decrease and it will feel sticky, which is undesirable. If it is less than 1%, the effect of the interaction between the fluorine-modified silicone compound and the hydrophobized powder will not be expressed. Undesirable.

Oils other than the fluorine-modified silicone compound of the present invention include squalane, liquid paraffin, petrolatum, microcrystalline wax, osikelite, ceresin, myristic acid, palmitic acid, stearic acid, oleic acid,
Isostearic acid, cetyl alcohol, hexadecyl alcohol, oleyl alcohol, cetyl 2-ethylhexanoate, 2-ethylhexyl palmitate, 2-octyldodecyl myristate, neopentyl glycol di-2-ethylhexanoate, tri-2-ethylhexane acid glycerol, 2-octyldodecyl oleate,
Isopropyl myristate, glycerol triisostearate, coconut oil fatty acid glycerol, olive oil, avocado oil, beeswax, myristyl myristate, mink oil, various hydrocarbons such as lanolin, silicone oil, higher fatty acids, fats and oils, esters, higher alcohols, Examples include waxes.

One or more of these can be arbitrarily selected and combined with a fluorine-modified silicone compound to form a solid powder cosmetic. Note that in the present invention, it is also possible to use only a fluorine-modified silicone compound.

The hydrophobized powder used in the present invention may be any powder that is normally used in cosmetics. For example, talc, kaolin, sericite, muscovite, synthetic mica, phlogopite, red mica, biotite, lithium mica, vermiculite, magnesium carbonate, calcium carbonate, diatomaceous earth, magnesium silicate, calcium silicate, aluminum silicate, Inorganic powders such as barium silicate, barium sulfate, strontium silicate, metal tungstate, silica, hydroxyapatite, zeolite, boron nitride, ceramic powder, nylon powder, polyethylene powder, benzoguanamine powder, tetrafluoroethylene powder, distyrene Benzene vinyl polymer powder Organic powder such as microcrystalline cellulose, titanium oxide,
Inorganic white pigments such as zinc oxide, inorganic red pigments such as iron oxide (red iron oxide), iron titanate, achromatic pigments such as 7-iron oxide, yellow iron oxide, inorganic yellow pigments such as ocher, black iron oxide, Inorganic black pigments such as carbon black, inorganic purple pigments such as mango violet and cobalt violet, inorganic green pigments such as chromium oxide, chromium hydroxide, and cobalt titanate, inorganic blue pigments such as ultramarine blue and navy blue, and titanium oxide coated. Burr pigments such as bismuth oxychloride, bismuth oxychloride, titanium oxide coated talc, fish scale foil, colored titanium oxide coated mica, clay minerals such as bentone, metal powder pigments such as aluminum powder, copper powder, etc.
Red No. 201, Red No. 202, Red No. 204, Red No. 20
No. 5, Red No. 220, Red No. 226, Red No. 228, Red No. 405, Orange No. 203, Orange No. 204, Yellow 205
organic pigments such as Yellow No. 401 and Blue No. 404, Red No. 3, Red No. 104, Red No. 106, Red No. 227, Red No. 230, Red No. 401, Red No. 505, Orange 205
organic pigments such as zirconium, barium or aluminum lake, chlorophyll, β-
Natural pigments such as carotene are used, but are not limited thereto.

Hydrophobic treatment methods include treatment with silicone compounds such as methylhydrodiene polysiloxane, high viscosity silicone oil, and silicone resin, treatment with surfactants such as anionic surfactants and cationic surfactants, nylon, polymethyl methacrylate, polyethylene, Treatments include treatments with polymeric compounds such as Teflon and polyamino acids, treatments with metal soaps, lipophilic waxes, polyhydric alcohol partial esters or complete esters, and the like.

However, any method that can be applied to the hydrophobizing treatment of powder in general may be used, and the method is not limited to these methods, but considering the affinity with the fluorine-modified silicone compound used in the present invention, hydrophobizing treatment with a silicone compound can be used. However, from the viewpoint of compatibility between the powder and oil, it is most preferable.

The silicone-treated powder used in the present invention has the following general formula I:
Baking treatment using a silicone compound represented by I and/or III, mechanochemical treatment, gas phase treatment alone or in combination (in formula I), R is hydrogen, lower alkyl group, phenyl group, RI R2 represents hydrogen, a lower alkyl group, a phenyl group, a benzyl group, a cyclohexyl group, a naphthyl group, a hydroxyl group, or a furfuryl group, and may be the same or different from each other, and may be different in the repeating unit.In formula III, R3 is hydrogen or a methyl group, R4
represents a methyl group or an ethyl group. n is an integer, m is 3~
It is an integer of 6. ) The silicone treatment method of the present invention will be specifically described. Japanese Patent Publication No. 41-9890 discloses a method in which the surfaces of animals, plants, and mineral powders are coated with a silicone resin coating material and then dried and baked. In Japanese Patent Publication No. 45-2915, powders of talc, mica, etc. and silicone having hydrogen directly bonded to silicon in the molecular chain are simply attached by mixing in a blender or the like, and then heated and baked. Special Public Service 1977-
18999, dimethylpolysiloxane or methylhydrodienepolysiloxane is dissolved in an organic solvent and then contact-adhered to talc, and then, if necessary, a substance such as zinc octanoate is added as a crosslinking polymerization catalyst for methylhydrodienepolysiloxane, and then baked. A technique for doing so has been disclosed. Japanese Patent Publication No. 49-1769 discloses that titanium dioxide is directly coated, emulsion coated or solvent solution coated with various alkyl polysiloxanes, and if necessary, an ester compound having a total carbon number of 6 or more is used, and after drying, it is baked. The treatment method disclosed in Japanese Patent Publication No. 56-43264 involves mixing and pulverizing one or more metal hydroxides with one or more of the above powders, uniformly bonding them to the powder surface, and then adding methylhydrodiene polyamide. Siloxane is cross-linked and polymerized uniformly on the powder surface by mechanochemical reaction. The treatment method disclosed in JP-A-60-163973 involves mixing one or more of the above-mentioned powders with one or more acidic substances, and reacting the organohydrodiene polysiloxane on the surface of the powder to cause cross-linking polymerization. The treatment method described in JP-A-61-189211 is obtained by mechanochemically treating a powder with a high viscosity silicone oil in which RI R2 in the formula II is a lower alkyl group or a phenyl group and n is 300 to 2000. be. JP-A No. 61-268763 discloses a technique for polymerizing cyclic organosiloxane on the powder surface at a low temperature of 100'C or less by vapor phase treatment by utilizing the activity of the powder surface. Also, JP-A-63-113081.63-1
13082 is a modified powder in which a pendant group is introduced into a silicone polymer by coating a powder with a silicone film having at least one 5i-H group, and then carrying out an addition reaction with a compound that can react with this 5i-H group. A technique for obtaining a body is disclosed.

The silicone treatment in the present invention may be performed by any of the above methods alone or in combination.

In the present invention, the hydrophobized powder can be used in a range of 30 to 99% by weight, preferably 50 to 92% by weight. If it is less than 30% by weight, the solid powder becomes extremely sticky, which is not preferable.

In addition to the above-mentioned essential ingredients, the solid powder cosmetic of the present invention includes powders such as untreated extender pigments and color pigments, water, surfactants, humectants, lower alcohols, and thickeners, as appropriate. Ingredients commonly used in cosmetics, such as fragrances, antioxidants, and antiseptic and fungicidal agents, can be incorporated within the range that does not impair the effects of the invention.

It was a solid powder cosmetic that was characterized by excellent cosmetic properties and had an excellent overall evaluation of makeup longevity.

In general, the solid powder cosmetic had a smooth texture and had excellent stability.

[Example 1] Next, the present invention will be explained in detail with reference to Examples.
The present invention is not limited to these. All blending amounts represent weight %. The performance of the cosmetics was confirmed by a five-point evaluation by a panel of 15 experts on the items listed in Table 1.

[Effects of the Invention] The solid powder cosmetic, which is characterized by blending one or more fluorine-modified silicone compounds of the present invention with one or more hydrophobized powders, has water resistance and sweat resistance. In addition, the sebum resistance evaluation results were shown using the following symbols based on the average values of 15 people.

0......4.5 or more up to 5.0 O...
・・・・・・3.5 or more but less than 4.5 △・・・・・・・・・
2.5 or more and less than 3.5 × 1.5 or more and less than 2.5 Xx 1.0 or more and 1.5
Example 1, Comparative Examples 1 to 2 A dual-purpose powder foundation that can be used in both dry and wet applications was prepared from the following ingredients.

(Margin below) (Manufacturing method) Components 1 to 5 are mixed in a Henschel mixer, and a mixture of components 6 to 11 heated and mixed is added to this mixture and mixed. This product was pulverized with a balberizer and molded under pressure into a medium plate to prepare a dual-use type powder foundation.

As is clear from Table 2, the dual-use type powder foundation (Example 1) containing the fluorine-modified silicone compound of the present invention has excellent removability, adhesion, sweat resistance, water resistance, and sebum resistance. It was a dual-purpose foundation with good makeup longevity. On the other hand, in Comparative Example 1, which did not use the fluorine-modified silicone compound of the present invention and instead used dimethyl polysiloxane as the oil component, the sweat and water resistance were as follows.
Although it was comparable to Example 1, the sebum resistance was not sufficient, and the overall makeup durability was not satisfactory. In general, Comparative Example 2, in which oil was blended with a combination of hydrocarbon oil and ester oil, had results that were significantly inferior to Example 1 in both sweat resistance and sebum resistance.

Example 2, Comparative Example 3 An oil-based foundation was prepared from the following ingredients.

(Manufacturing method) Components 1 to 6 are mixed using a Henschel mixer. Separately, components 7 to 12 are heated and melted at 70 to 80'C and then mixed.

Add 1 to 6 mixed in advance to this and disperse with a stirrer. This material is processed with a roller, and the kneaded material is reheated and redissolved. After defoaming, 13 is added and mixed by gentle stirring. This was heated to 85 to 90°C, poured into a medium plate, and cooled and solidified to prepare a solid (compact) oil-based foundation.

As is clear from Table 3, the oil-based foundation made by blending the fluorine-modified silicone compound of the present invention with the hydrophobically treated powder has excellent sebum resistance and long-lasting makeup despite its high oil content. It has a firm feel when used.
Furthermore, it was a foundation with a slightly dull color over time. On the other hand, Comparative Example 3, which did not use the fluorine-modified silicone compound of the present invention, had fair ratings for water resistance and sweat resistance, but had poor sebum resistance and significantly inferior makeup durability. .

It was highly stable and did not suffer from oxidative deterioration during the oil-based foundation manufacturing process and the heating process in the filling and molding process.

Example 3, Comparative Example 4 A dual-purpose eye shadow that can be used both dry and wet was prepared from the following ingredients.

(Left below) Furthermore, the fluorine-modified silicone compound used in the present invention has excellent thermal oxidative stability (manufacturing method) Components 1 to 6 are mixed in a Henschel mixer, and components 7 to Add and mix 12 with heat. This product was pulverized with a pulverizer and molded under pressure into a medium plate to prepare a dual-use eye shadow.

As is clear from Table 4, the dual-use eye shadow of Example 3 containing the fluorine-modified silicone compound of the present invention is a highly stable and favorable eye shadow with excellent water resistance, sweat resistance, and sebum resistance. It was excellent in overall makeup longevity. On the other hand, Comparative Example 4, which did not use the fluorine-modified silicone compound of the present invention and was formulated by combining linear silicone oil and hydrophobized powder, had excellent water and sweat resistance, but had poor sebum resistance. This tendency was particularly noticeable in the oily skin panel.

Example 4, Comparative Examples 5-6 A solid white powder was prepared from each of the following ingredients.

Whistle damage (manufacturing method) Components 1 to 5 are mixed in a Henschel mixer, and a heated mixture of components 6 to 11 is added to this mixture and mixed. This product was pulverized with a balberizer and molded under pressure into a medium plate to prepare a dual-use type powder foundation.

As is clear from Table 5, the solid white powder containing the fluorine-modified silicone compound of the present invention was a new solid white powder with excellent water resistance, sweat resistance, and sebum resistance.

Patent applicant: Shiseido Co., Ltd.

Claims (2)

[Claims] (1) A solid product characterized by blending (A) one or more fluorine-modified silicone compounds represented by the following general formula [I] and (B) one or more hydrophobized powders. Powder cosmetics. ▲There are mathematical formulas, chemical formulas, tables, etc.▼ (In formula [I], n and m are average numbers, and n is 1 to 150, m
is a number from 0 to 150. a is an integer from 0 to 5, R
f represents a perfluoroalkyl group having 1 to 8 carbon atoms. ) (2) The solid powder cosmetic according to claim (1), wherein the hydrophobized powder is a silicone-treated powder.