JP4348251B2 - Makeup cosmetics - Google Patents

Description

  The present invention relates to a makeup cosmetic that does not cause uneven application when applied to the skin and that can provide a uniform and clean finish.

  Conventionally, in makeup cosmetics, in order to increase the covering power against uneven skin color such as spots and freckles, the amount of powders such as colored pigments such as titanium oxide and iron oxide, and pearl pigments such as titanium mica is increased. The method is common. However, in a liquid makeup cosmetic, if such powder is blended in a large amount, the powder easily aggregates in the cosmetic and the covering power cannot be exhibited. For this reason, for example, Patent Document 1 and Patent Document 2 propose cosmetics that suppress aggregation of powder by blending a water-soluble or oil-soluble polymer together with the powder. However, even if the dispersion state of the powder in the cosmetic is improved as described above, the powder may agglomerate on the skin when applied to the skin, or the uneven shape of the skin, particularly wrinkles or rough skin. As a result, the powder accumulates on the surface, resulting in coating unevenness, and the finished covering is impaired without exhibiting the original covering power. Such a phenomenon was particularly noticeable in a liquid type water-in-oil emulsified cosmetic containing 15% by mass or more of powder in the cosmetic.

On the other hand, polyethylene glycol and polyoxyalkylene-modified saccharides have been reported to improve the stability of emulsions and to suppress aggregation of inorganic powders in cosmetics (Patent Document 1, Patent Document 3, Patents). Reference 4).
JP 09-151110 A JP 2004-506614 A JP 2002-205912 A JP 2003-105191 A

  An object of the present invention is to provide a makeup cosmetic that can improve the unevenness during application and obtain a uniform and clean finish even with a liquid cosmetic containing 15% by mass or more of powder.

  The present inventors applied a liquid water-in-oil emulsified cosmetic containing polyethylene glycol or polyoxyalkylene-modified saccharide and powder, oil agent, polyhydric alcohol and water in a specific ratio to the skin, In the process of forming a coating layer on the surface of the skin, the uneven surface portion of the skin that is likely to be unevenly coated without powder aggregation due to polyethylene glycol or polyoxyalkylene-modified saccharide that is compatible with water in the inner phase It was found that the powder adheres evenly and even on rough skin, and it has a smooth finish with a good covering power, and can be applied and finished in a short time.

The present invention includes the following components (A), (B), (C), (D) and (E):
(A) 0.1 to 20% by mass of polyethylene glycol or polyoxyalkylene-modified saccharide having an average molecular weight of 500 to 10,000
(B) Powder 15-50% by mass,
(C) 5 to 70% by mass of an oil agent that is liquid at 25 ° C.
(D) 0.1 to 20% by mass of a polyhydric alcohol having an average molecular weight of less than 50 to 500,
(E) Water 5-60 mass%
A liquid water-in-oil emulsified makeup cosmetic containing

  The makeup cosmetic of the present invention does not cause uneven application when applied to the skin, and the powder can evenly adhere to the surface of the skin, so that the covering power inherent in the cosmetic can be fully exerted, and more quickly and quickly. A fine finish can be obtained. In addition, the aqueous phase in which polyethylene glycol or polyoxyalkylene-modified saccharides and polyhydric alcohol coexist improves the coatability by controlling the evaporation of moisture during application, so that the cosmetic can be applied regardless of the uneven shape of the skin. Uniformity is applied to the entire surface and unevenness is less likely to occur.

  The present invention relates to a makeup cosmetic containing polyethylene glycol or polyoxyalkylene-modified saccharide, powder, oil agent, polyhydric alcohol and water in a specific range ratio. With such a combination, when applied, the powder adheres evenly on the skin surface without being agglomerated or unevenly distributed due to the shape of the skin unevenness, etc., and excellent covering power against uneven skin color such as spots and freckles It has a certain finish.

The component (A) polyethylene glycol or polyoxyalkylene-modified saccharide used in the present invention has an average molecular weight of 500 to 10,000, preferably 500 to 8,000. Examples of the polyoxyalkylene-modified saccharide include monosaccharides; oligosaccharides such as disaccharides and trisaccharides; sugar alcohols and the like. Of these, glucose, sorbitol, and sucrose are preferable. In particular, polyoxyalkylene-modified alkyl-modified saccharides modified with an alkyl chain having 1 to 4 carbon atoms are preferred, and examples thereof include polyoxyalkylene methyl glucoside. More preferably, the number of moles of alkylene oxide added is 5 to 30, particularly 10 to 20, and the alkylene oxide is preferably one having 1 to 4 carbon atoms, particularly preferably ethylene oxide.
These are components for suppressing unevenness of the component (B) during coating by forming a uniform coating layer on the skin surface, and in particular, polyoxyethylene methyl having 10 to 20 moles of ethylene oxide added. Glucoside is preferred.

  As the component (A), one or more kinds can be used, and polyethylene glycol and polyoxyalkylene-modified saccharide can be used in combination. The content of the component (A) in the cosmetic of the present invention is 0.1 to 20% by mass, particularly 0.3 to 10% by mass, which is finished quickly without uneven coating and has sufficient covering power. This is preferable because a smooth finish can be obtained.

  The component (B) used in the present invention is a powder generally used in cosmetics. For example, iron oxide, chromium oxide, carbon black, ultramarine blue, bitumen, organic tar pigment (blue No. 1 etc.), lake (yellow No. 203). Colored pigments such as Ba lake) titanium oxide, zinc oxide, titanium oxide-zinc oxide composite powder, talc, sericite, kaolin, silica, alumina, barium sulfate, calcined calcium sulfate, calcium carbonate, magnesium carbonate, magnesium silicate Body pigments such as calcium phosphate; Pearl pigments such as mica, mica titanium, iron oxide-coated mica, iron oxide-coated mica titanium; nylon powder, silk powder, cellulose powder, polyester powder, polyethylene powder, polypropylene powder, polystyrene powder, polymethyl Benzoguanamine powder Polymer powders such as polymethyl methacrylate powder, polyurethane powder, lauroyl lysine, silicone powder, silicone elastomer spherical powder, butyl acrylate / vinyl acetate copolymer, cyclodextrin, styrene / acryl copolymer resin powder, etc. ; Bentonite, smectite, boron nitride and the like.

  The shape of these powders (spherical, rod-like, needle-like, indeterminate shape, flake-like shape, spindle shape, etc.) is not particularly limited, and these powders can be used as metal soap, metal oxide, metal water according to the purpose. Used after surface treatment with oxide, fat, wax, silicone compound, fluorine compound, fluorine-modified silicone compound, hydrocarbon compound, higher fatty acid, higher alcohol, fatty acid ester, amino acid, alkyl phosphate, lipophilic surfactant, etc. You can also

Component (B) powder is used to correct skin color, to give the skin gloss, to make the skin look more beautiful, such as to make uneven skin areas such as spots and freckles, and uneven areas such as pores and wrinkles inconspicuous. It is blended with.
One or more types of component (B) can be used, and in order to obtain a clean finish with sufficient covering power, it is preferably contained in the cosmetic at 15 to 50% by mass, particularly 15 to 40% by mass. .

  Among the components (B), the colored pigment and the pearl pigment are preferable because they have a high effect of correcting the skin color and making the color unevenness such as a skin stain inconspicuous. Particularly, iron oxide, mica, mica titanium, iron oxide-coated mica Iron oxide-coated titanium mica is preferred. The colored pigment and the pearl pigment are preferably contained in the total powder in an amount of 10% by mass or more from the viewpoint of obtaining a finish with sufficient covering power.

  Further, by using the components (A) and (B) at a specific ratio, the coating layer formed by the component (A) suppresses the aggregation and uneven distribution of the component (B) on the skin surface, thereby causing uneven coating. It is easy to apply and finish in a short time without waking up, and a finish with covering power can be obtained. The component (A) which can be formed on the coated surface has a mass ratio [(A) / (B)] of components (A) and (B) of 0.005 to 0.5, particularly 0.01 to 0.3. The coating layer is preferable because the powder of component (B) can be uniformly attached.

The component (C) oil used in the present invention is liquid at 25 ° C. In particular, when a low-viscosity oil is contained in the oil phase, the make-up cosmetic of the present invention is easy to stretch and slip on the skin surface, and can be finished quickly.
Examples of the component (C) include silicone oils such as dimethylpolysiloxane, dimethylcyclopolysiloxane, methylphenylpolysiloxane, methylhydrogenpolysiloxane, and fluorine-modified organopolysiloxane; fluorine such as fluoropolyether and perfluoroalkylethersilicone. Oils; vegetable oils such as olive oil and jojoba oil; animal oils such as liquid lanolin; hydrocarbon oils such as liquid paraffin and squalane; diisostearyl malate, octyldodecyl lactate, isotridecyl isononanoate, isopropyl isostearate, octyldodecyl myristate, dicaprin Ester oils such as acid neopentyl glycol; ester oils such as glycerin derivatives and amino acid derivatives; higher grades such as isostearyl glyceryl ether and ceralkyl alcohol Lumpur; benzophenone, oxybenzone, 2-ethylhexyl p-methoxycinnamate or the like of the ultraviolet absorber and the like. In particular, the viscosity at 25 ° C. is preferably 100 mPa · s or less, and more preferably 50 mPa · s or less. Of these, dimethylpolysiloxane and dimethylcyclopolysiloxane are preferred in that a good feeling without stickiness can be obtained. In addition, the viscosity shown here measured the viscosity after 1 minute with a B-type viscometer (Tokimec) at 25 degreeC.

  As the component (C), one or more kinds can be used, and it is preferably contained in the cosmetic in an amount of 5 to 70% by mass, particularly 10 to 60% by mass. In addition, it is more preferable that the component (C) is contained in an oil phase in an amount of 10% by mass or more because it is easy to spread and slip when applied to the skin and the effect of preventing application unevenness is easily exhibited.

  The polyhydric alcohol of component (D) used in the present invention has an average molecular weight of less than 50 to 500. For example, glycerin, butylene glycol, propylene glycol, dipropylene glycol, polypropylene glycol, polyethylene glycol, diglycerin, 3- Methyl-1,3-butanediol, 1,2-pentanediol, diethylene glycol, hexylene glycol, 1,2,6-hexanetriol, ethoxylated glycerin, propoxylated glycerin, polyglycerin, glucose, maltose, xylitol, lactitol , Reduced palatinose, sorbitol, maltitol, hydroxypropyl sorbitol, fructose, erythritol and the like. Among these, glycerin, 1,3-butylene glycol, propylene glycol, and dipropylene glycol are preferable in terms of good usability.

One or more components (D) can be used, and 0.1 to 20% by weight, particularly 0.3 to 10% by weight, is contained in the cosmetics. It is preferable because it can be finished quickly.
Further, the mass ratio [(A) / (D)] of the components (A) and (D) is in the range of 0.01 to 20, particularly 0.05 to 15, and the film of the component (A) is more suitable. It is preferable in that it is uniformly formed and coating unevenness does not occur.

Component (E) water is contained in the cosmetic in an amount of 5 to 60% by mass, preferably 10 to 50% by mass, particularly preferably 10 to 40% by mass. Within this range, a stable water-in-oil emulsified cosmetic can be obtained.
The mass ratio [(D) / (E)] of the components (D) and (E) is 0.001 to 1.0, preferably 0.01 to 0.5. Within this range, the evaporation rate of water at the time of application is appropriate, the film of component (A) can be formed uniformly on the application surface, and application unevenness does not occur.

As the surfactant contained in the makeup cosmetic of the present invention, as a nonionic surfactant, sorbitan fatty acid ester, polyoxyethylene sorbitan fatty acid ester, glycerin fatty acid ester, polyglycerin fatty acid ester, polyoxyethylene glycerin fatty acid Esters, polyoxyethylene alkyl ethers, polyoxyethylene castor oil, polyoxyethylene hydrogenated castor oil, polyethylene glycol fatty acid esters, polyether-modified silicones, polyglycerin-modified silicones, etc .; cationic surfactants such as alkyltrimethylammonium chloride, chloride Alkyldimethylbenzylammonium, dialkyldimethylammonium chloride, etc .; as amphoteric surfactant, lecithin, betaine acetate, imidazolium betaine Alkyl dimethylamine oxide, and the like. In particular, a nonionic surfactant having an HLB value of 10 or less determined from the Griffin formula is preferred in that a stable water-in-oil emulsified cosmetic can be obtained. Furthermore, sorbitan fatty acid ester, glycerin fatty acid ester, polyglycerin fatty acid ester, polyoxyethylene hydrogenated castor oil, polyether-modified silicone, and polyglycerin-modified silicone are preferable.
One or more kinds of these surfactants can be used, and 0.1 to 20% by mass, particularly 0.1 to 10% by mass in the cosmetic is obtained, and a good feeling without stickiness is obtained. This is preferable.

The make-up cosmetic of the present invention can appropriately contain an oil agent other than the component (C) in the oil phase. For example, higher fatty acids such as palmitic acid and stearic acid; higher fatty acid metal salts such as zinc stearate and magnesium stearate; higher alcohols such as cetyl alcohol, stearyl alcohol and batyl alcohol; petrolatum, lanolin, ceresin, beeswax, candelilla wax And waxes.
These oil components are preferably contained in the cosmetic in an amount of 0 to 50% by mass, particularly 0 to 30% by mass, from the viewpoint of obtaining a stable water-in-oil cosmetic.

  Furthermore, the cosmetic of the present invention includes, in addition to the above-mentioned components, components usually used in cosmetics, such as lower alcohols such as ethanol; humectants such as glycine, trimethylglycine, trehalose, urea, amino acids; xanthan gum, hydroxyethyl cellulose, Water-soluble polymers such as methylcellulose and hydroxypropyl guar gum; water-soluble UV absorbers such as urocanic acid; antioxidants such as tocopherol and dibutylhydroxytoluene; oil-soluble vitamins, stearyl glycyrrhetinate, tocopherol acetate, plant extract, ascorbic acid Medicinal agents such as magnesium phosphate, glycyrrhizinate and vitamins; metal salts such as calcium chloride and magnesium sulfate; pH buffering agents such as citric acid, succinic acid and trisodium citrate; methylparaben, sodium dehydroacetate Arm, and preservatives such as phenoxyethanol, can be contained in a range not to impair the effects of the present invention.

The makeup cosmetic of the present invention can be produced by a usual method, and a liquid water-in-oil emulsion cosmetic is preferred.
Further, the makeup cosmetic of the present invention has a viscosity of 500 to 100,000 mPa · s, particularly 1000 to 80,000 mPa · s, more preferably 3000 to 80,000 mPa at 25 ° C. -The liquid form of s is preferable in that it has good spread, coating unevenness is unlikely to occur, and the effect that the powder adheres uniformly is likely to appear. The viscosity here is obtained by measuring the viscosity after 1 minute with a B-type viscometer (Tokimec).

  The makeup cosmetic of the present invention can be applied as a foundation, concealer, blusher, eye shadow, eyebrow and the like. In particular, foundations, concealers, and even foundations are preferred as cosmetics that are easy to exert the effect of having a covering power against skin color unevenness such as spots and freckles and a finish with a feeling of bare skin.

Examples 1-5 and Comparative Examples 1-4
A liquid water-in-oil emulsion foundation having the composition shown in Table 1 was produced by the following method. About the obtained foundation, the viscosity at 25 ° C. is measured, “is less likely to be uneven when applied”, “is a uniform finish”, “the skin looks smooth”, “has covering power against uneven skin color” , “Easy to finish (painting) quickly” was evaluated. The results are shown in Table 2.

(Manufacturing method)
In the composition shown in Table 1, components (1) to (4) are mixed. Add components (5) to (9) to the mixture of components (1) to (4), and stir and mix with a disper. Separately, components (10) to (15) are heated and dissolved, mixed with a stirrer, cooled to room temperature, then added to the mixture of components (1) to (9) with slow stirring over 30 minutes, and further After stirring for 10 minutes with a disper, defoamed and filled into a bottle to obtain a liquid water-in-oil foundation.

(Evaluation methods)
When 10 female panelists with uneven skin color apply each water-in-oil foundation to their faces, they are “uneven when applied”, “uniform finish”, “smooth skin” It was evaluated according to the following criteria, and the average score was obtained with respect to the points “appearing”, “having covering power against uneven skin color”, and “can finish quickly”.

[5-level evaluation criteria]
5: Very good.
4: Good.
3: Normal.
2: Slightly poor.
1: Defect.

The liquid water-in-oil emulsified foundations of Examples 1 to 5 did not cause unevenness when applied to the face, and could be finished quickly. Further, the powder adhered evenly to the skin and looked smooth, and the finish had a covering power against color unevenness.
On the other hand, in the foundations of Comparative Examples 1 and 2 that did not contain the component (A) and the component (D), coating unevenness occurred and a uniform finish could not be obtained. The foundation of Comparative Example 3 containing no component (C) could not be prepared because the powder was not dispersed and aggregated. In Comparative Example 4 in which the component (B) powder was less than 15% by mass, the covering force was insufficient.

Example 6 (water-in-oil emulsification foundation)
Water-in-oil emulsion foundations having the compositions shown in Table 3 were produced by the following method.
The resulting foundation has a viscosity of 28,500 mPa · s, has a uniform finish that is less likely to become uneven when applied, has a smooth skin, has a covering power against uneven skin color, and is excellent in that it can be finished quickly. It was.

(Manufacturing method)
In the composition shown in Table 3, components (1) to (10) are heated and dissolved at 70 ° C. and mixed. Ingredients (11) to (15) are added to the mixture of ingredients (1) to (10) and stirred and mixed with a disper. Separately, components (16) to (21) are heated and dissolved at 70 ° C. and mixed with a stirrer, and added to the mixture of components (1) to (15) at 70 ° C. with slow stirring over 30 minutes. The mixture was further stirred for 20 minutes with a homomixer, defoamed and filled into a bottle to obtain a liquid water-in-oil foundation.

Example 7 (Water-in-oil emulsification concealer (liquid type))
A liquid type concealer having the composition shown in Table 4 was produced by the following method.
The resulting concealer has a viscosity of 72,000 mPa · s, has a uniform finish that is less likely to become uneven when applied, has a smooth skin, has a covering power against uneven skin color, and is excellent in that it can be finished quickly. It was.

(Manufacturing method)
In the composition shown in Table 4, components (1) to (11) are heated and dissolved at 80 ° C. and mixed. Components (12) to (16) are added to the mixture of components (1) to (11), and the mixture is stirred and mixed with a disper. Separately, the components (17) to (22) are heated and dissolved at 70 ° C., mixed with a stirrer, and added to the mixture of the components (1) to (16) at 70 ° C. with slow stirring over 30 minutes. The mixture was further stirred for 20 minutes with a homomixer, defoamed and filled into a tube to obtain a liquid water-in-oil foundation.

Claims (5)

The following components (A), (B), (C), (D) and (E):
(A) an average molecular weight from 500 to 10,000 of polyoxyalkylene down methylglucoside
0.1 to 20% by mass,
(B) Powder 15-50% by mass,
(C) 5 to 70% by mass of an oil agent that is liquid at 25 ° C.
(D) 0.1 to 20% by mass of a polyhydric alcohol having an average molecular weight of less than 50 to 500,
(E) Water 5-60 mass%
Liquid water-in-oil emulsified makeup cosmetics.   The mass ratio of the components (A) and (B) [(A) / (B)] is 0.005 to 0.5, and the mass ratio of the components (D) and (E) [(D) / (E )] Is 0.001 to 1.0, The makeup cosmetic according to claim 1.   The makeup cosmetic according to claim 1 or 2, wherein the content of the colored pigment and the pearl pigment in the component (B) is 10% by mass or more in the total powder.   The makeup cosmetic according to any one of claims 1 to 3, wherein the mass ratio [(A) / (D)] of the components (A) and (D) is 0.01 to 20.   The makeup cosmetic according to any one of claims 1 to 4, wherein the component (A) is polyoxyethylene methyl glucoside having an ethylene oxide addition mole number of 10 to 20.