WO2019245024A1 - Aerosol cosmetic - Google Patents

Abstract

This aerosol cosmetic contains: a stock solution including (A) a dimethylpolysiloxane having a viscosity of 6-5000 mPa∙s at 25°C, (B) a polyethylene glycol having a molecular weight of 300-15000, (C) a water-soluble thickener, (D) a nonionic surfactant having an HLB of 12-18, and (E) water, the content of component (A) being 0.1-20 mass%, the mass ratio (A)/(B) of component (A) to component (B) being 0.1-20, and the viscosity of the stock solution at 25°C being 500-20000 mPa∙s; and (F) carbon dioxide gas.

Description

Aerosol cosmetics

The present invention relates to an aerosol cosmetic.

肌 Skin problems such as current bears and dullness are caused by decreased blood flow, and cosmetics that utilize the carbon dioxide effect are being studied to improve these problems. For example, Patent Literature 1 describes that an aerosol-type cosmetic containing polyglycerin fatty acid ester, saccharide, silicone oil, and carbon dioxide gas maintains a foam state even during massage treatment, and does not become sticky even after being washed away. I have. Further, Patent Document 2 discloses that an aerosol cosmetic containing two specific surfactants, an acrylic acid-based polymer, a polyol, and carbon dioxide gas generates many air bubbles having a small particle diameter, and gives a feeling of use such as stickiness. Is described as being improved.

(Patent Document 1) JP-A-2011-93877 (Patent Document 2) JP-A-2016-17052

The invention comprises the following components (A), (B), (C), (D) and (E):
(A) a dimethylpolysiloxane having a viscosity at 25 ° C. of 6 to 5000 mPa · s,
(B) polyethylene glycol having a molecular weight of 300 to 15,000,
(C) a water-soluble thickener,
(D) a nonionic surfactant of HLB 12-18,
(E) containing water, the content of the component (A) is 0.1 to 20% by mass, and the mass ratio (A) / (B) of the component (A) to the component (B) is 0.1 to 20; The present invention relates to an undiluted solution having a viscosity at 25 ° C. of 500 to 20,000 mPa · s, and (F) an aerosol cosmetic containing carbon dioxide.

It is a figure which shows the method of measuring the volatilization rate of carbon dioxide gas, and the volatilization amount of carbon dioxide gas in an Example.

DETAILED DESCRIPTION OF THE INVENTION

The conventional carbon dioxide-containing aerosol cosmetics described in Patent Literature 1 and Patent Literature 2 suppress the volatilization of carbon dioxide when the foam discharged from the container is adapted to the skin, and have a sticky skin after application. There was still room for improvement in terms of usability and usability.

The present inventors can obtain an aerosol cosmetic which solves the above problems by combining a specific dimethylpolysiloxane and a polyethylene glycol in a specific ratio and using a water-soluble thickener, a specific surfactant, and carbon dioxide. I found that.

エ ア The aerosol cosmetic of the present invention can suppress the volatilization of carbon dioxide (carbon dioxide) when the foam (foam) discharged from the container is blended into the skin, and can cause a sufficient amount of carbon dioxide to act on the skin. Further, the skin after application has no stickiness and is excellent in usability such as smoothness and softness.

The component (A) used in the present invention is a dimethylpolysiloxane having a viscosity at 25 ° C. of 6 mPa · s or more and 5000 mPa · s or less, and from the viewpoint of suppressing the volatilization of carbon dioxide gas and increasing the permeability to the skin, is 10 mPa · s. The above is preferable. In addition, from the viewpoint of imparting non-stickiness and smoothness and softness after application, the thickness is preferably 1,000 mPa · s or less, more preferably 500 mPa · s or less. Further, from the balance between the suppression of volatilization of carbon dioxide gas, the suppression of stickiness after coating, and the impartation of smoothness and softness, it is preferably from 10 mPa · s to 1000 mPa · s, more preferably from 10 mPa · s to 500 mPa · s.
Here, the viscosity was measured using a BM viscometer (manufactured by Toki Sangyo Co., Ltd.) using a rotor No. When measured at 3, 12 rpm and 1 minute, and the viscosity exceeds 10,000 mPa · s, the rotor No. It is a value measured at 3.6 rpm for 1 minute.

The content of the component (A) is 0.1% by mass or more in the stock solution, preferably 0.5% by mass or more, and more preferably 1% by mass, from the viewpoints of suppressing volatilization of carbon dioxide gas and suppressing stickiness after coating. That is all. Further, from the viewpoint of suppressing stickiness after application and imparting smoothness and softness, the content is 20% by mass or less, preferably 15% by mass or less, more preferably 7% by mass or less. Further, the content of the component (A) is 0.1 to 20% by mass in the stock solution from the viewpoint of the suppression of volatilization of carbon dioxide gas, the suppression of stickiness after application, and the balance between smoothness and softness. It is preferably from 5 to 15% by mass, more preferably from 1 to 7% by mass.

In the present invention, two or more dimethylpolysiloxanes of the component (A) may be used. In such a case, the viscosity upon mixing may be within the above-mentioned range. When two or more dimethylpolysiloxanes are blended, it is preferable to include dimethylpolysiloxane of less than 30 mPa · s and dimethylpolysiloxane of 30 mPa · s or more in a mass ratio of 1: 0.1 to 1:10. .
Further, when two or more kinds of dimethylpolysiloxanes are blended, the content of dimethylpolysiloxane of 100 mPa · s or more in the component (A) is 3% by mass or less from the viewpoint of suppression of volatilization of carbon dioxide gas and feeling of use. , Preferably 1% by mass or less.

The polyethylene glycol of the component (B) has an average molecular weight of 300 to 15,000, and preferably has an average molecular weight of 300 to 10000 from the viewpoint of suppression of volatilization of carbon dioxide gas, suppression of stickiness after coating and imparting smoothness and softness. ～ 5000 is more preferred.

The component (B) can be used alone or in combination of two or more, and the content is preferably 0.1% by mass in the stock solution from the viewpoint of the balance between stickiness suppression and softness after coating. The above is more preferably 0.3% by mass or more, further preferably 0.5% by mass or more, and from the viewpoint of the effect of suppressing volatilization of carbon dioxide gas, preferably 10% by mass or less, more preferably 8% by mass or less. It is preferably at most 5% by mass. The content of the component (B) is preferably 0.1 to 10% by mass, more preferably 0.1 to 10% by mass in the stock solution, from the viewpoint of suppressing volatilization of carbon dioxide gas, suppressing stickiness after coating, and imparting smoothness and softness. Is from 0.3 to 8% by mass, more preferably from 0.5 to 5% by mass.

Further, in the present invention, the mass ratio (A) / (B) of the component (A) to the component (B) is from 0.1 to 20, but the volatilization of carbon dioxide gas, the suppression of stickiness after coating and the smoothness are improved. From the viewpoint of the balance of imparting softness, it is preferably 0.5 to 15, more preferably 0.8 to 5.

As the water-soluble thickener of the component (C), those used in ordinary cosmetics may be used. For example, carrageenan, dextrin, methylcellulose, ethylcellulose, hydroxyethylcellulose, hydroxypropylcellulose, polyvinyl alcohol, polyacrylic acid, Polymethacrylic acid, carboxyvinyl polymer, (acrylic acid / alkyl acrylate (C10-30)) copolymer, xanthan gum, carboxymethyl chitin, chitosan and the like. Among these, acrylic acid-based polymers are preferable, and carboxyvinyl polymers are preferable from the viewpoints of suppression of volatilization of carbon dioxide gas, stability of the stock solution, and feeling of use during application and after application (non-stickiness, smoothness and softness). Acrylic acid / alkyl acrylate copolymers are more preferred, and (acrylic acid / alkyl acrylate (C10-30)) copolymers are more preferred.
Here, the (acrylic acid / alkyl acrylate (C10-30)) copolymer is a copolymer of C10-30 alkyl acrylic acid and acrylic acid, methacrylic acid or lower alkyl esters thereof, and is a copolymer of sucrose. Crosslinked with allyl ether or allyl ether of pentaerythritol, and commercially available products such as Pemulen TR-1, Pemulen TR-2, Carbopol ETD2020, Carbopol 1342, Carbopol 1382 (all above, Lubrizol Advanced Materials) are used. be able to.

Acid-type water-soluble thickeners such as polyacrylic acid, carboxyvinyl polymer and (acrylic acid / alkyl acrylate (C10-30)) copolymers include alkali metal hydroxides such as potassium hydroxide and sodium hydroxide. Is preferably used as a water-soluble or water-dispersible salt.

One or more types of the component (C) can be used, and the content is preferably 0.05% by mass or more in the stock solution from the viewpoint of non-stickiness at the time of application and improvement of the stability of the stock solution. , More preferably 0.1% by mass or more, even more preferably 0.2% by mass or more, and preferably 1% by mass or less, more preferably 0.8% by mass or less, and still more preferably 0.7% by mass. It is as follows. The content of the component (C) is preferably 0.05 to 1% by mass, more preferably 0.1 to 0.8% by mass, and still more preferably 0.2 to 0.7% by mass in the stock solution. is there.

The component (D) nonionic surfactant used in the present invention is HLB 12 to 18, preferably HLB 13 to 15.
Here, HLB (Hydrophilic-Lipophilic Balance) indicates the molecular weight of the hydrophilic group portion in the total molecular weight of the surfactant. Griffin).
The HLB of a mixed surfactant composed of two or more nonionic surfactants is determined as follows. The HLB of the mixed surfactant is obtained by averaging the HLB values of the respective nonionic surfactants based on the blending ratio.

Mixed HLB = Σ (HLBx × Wx) / ΣWx
HLBx indicates the HLB value of the nonionic surfactant X.
Wx indicates the mass (g) of the nonionic surfactant X having the value of HLBx.

Examples of the nonionic surfactant of the component (D) include polyglycerin fatty acid ester, polyethylene glycol fatty acid ester, sucrose fatty acid ester, polyoxyethylene fatty acid ester, polyoxyethylene sorbitan fatty acid ester, polyoxyethylene alkyl ether, and polyoxyethylene alkyl ether. Oxyethylene sorbitol fatty acid ester, polyoxyethylene glycerin fatty acid ester, polyoxyethylene propylene glycol fatty acid ester, polyoxyethylene castor oil, polyoxyethylene hydrogenated castor oil, polyoxyethylene hydrogenated castor oil fatty acid ester, polyoxyethylene phytostanol ether, Polyoxyethylene phytosterose ether, polyoxyethylene cholesteranol ether, polyoxyethylene cholesteryl ether Le, polyoxyalkylene-modified organopolysiloxane, polyoxyalkylene-alkyl co-modified organopolysiloxanes, and the like, may be used alone or two or more selected from these.
Among them, polyoxyethylene alkyl ether and polyoxyethylene hydrogenated castor oil are preferable from the viewpoint of foaming property at the time of discharging carbon dioxide gas.

Component (D) can be used alone or in combination of two or more, and the content is preferably 0.05% by mass in the stock solution from the viewpoint of non-stickiness during coating and stability of the stock solution. The above, more preferably 0.1% by mass or more, further preferably 0.2% by mass or more, and preferably 16% by mass or less, more preferably 4% by mass or less, and further preferably 2% by mass or less. . Further, the content of the component (D) in the stock solution is preferably 0.05 to 16% by mass, more preferably 0.1 to 4% by mass, and even more preferably 0.2 to 2% by mass.

水 The water of the component (E) used in the present invention acts as a solvent for the stock solution and forms the balance of the other components. The water content of the component (E) is preferably 55% by mass or more, more preferably 65% by mass in the stock solution, from the viewpoint of non-stickiness at the time of application, imparting smoothness and softness, and emulsifying stability of the stock solution. The content is more preferably 70% by mass or more, preferably 99% by mass or less, more preferably 95% by mass or less, and further preferably 90% by mass or less. Further, the content of water in the stock solution is preferably 55 to 99% by mass, more preferably 65 to 95% by mass, and still more preferably 70 to 90% by mass.

The aerosol cosmetic of the present invention further increases the concentration of carbon dioxide in the stock solution and causes the carbon dioxide to act on the skin. Therefore, as the component (G) in the stock solution, other than the component (A) used in ordinary cosmetics Oil agent can be contained.
Among the oils of component (G), those which are liquid at 25 ° C. include, for example, hydrocarbons such as paraffin, squalane, squalene; camellia oil, jojoba oil, olive oil, macadamia nut oil, avocado oil, olive oil, etc. A natural animal or vegetable oil mainly composed of triglyceride; glycerin monostearate, glycerin distearate, glycerin monooleate, isopropyl palmitate, isopropyl stearate, butyl stearate, isopropyl myristate, diethyl phthalate, myristyl lactate, Cetyl myristate, cetyl lactate, cetyl 2-ethylhexanoate, 2-ethylhexyl palmitate, 2-octyldodecyl myristate, 2-octyldodecyl oleate, glycerol triisostearate, Monoester oils such as-paramethoxycinnamic acid-glyceryl mono-2-ethylhexanoate, isotridecyl isononanoate, glyceryl monomyristate monoisostearate, alkyl benzoate (alkyl group having 12 to 15 carbon atoms); diisopropyl adipate; Diisobutyl adipate, neopentyl glycol dicaprate, glyceryl tri (capryl / caprate), glyceryl tricaprate, neopentyl glycol di-2-ethylhexanoate, di (caprylic / capric acid) propanediol, 1-isostearoyl- Diester oils such as 3-myristoyl glycerol, diisostearyl malate, di- (cholesteryl octyldodecyl) N-lauroyl-L-glutamate; alkyl-1,3-dimethylbutyl ether, dicap Rirueteru, ether oil such as dicaprylyl ether; eucalyptus oil, and the like essential oils peppermint oil.
Of these, monoester oils and diester oils are preferred, and isotridecyl isononanoate and alkyl benzoates are more preferred, from the viewpoint of increasing the concentration of carbon dioxide and imparting a smooth feeling of use.

Oils other than liquid at 25 ° C. include waxes, pastes and solid fats at 25 ° C., such as higher alcohols having 12 to 24 carbon atoms, higher fatty acids having 12 to 24 carbon atoms, and paraffin wax. No.

The component (G) can be used alone or in combination of two or more kinds. The content thereof is 0.1 to 15 mass% in the stock solution from the viewpoint of enhancing the foam hardness and foam elongation and the effect of carbon dioxide gas. %, More preferably 0.5 to 10% by mass.
The total amount of these oil agents (component (A) and component (G)) in the stock solution is preferably 0.1 to 20% by mass from the viewpoint of solubility of carbon dioxide gas, spread to skin, and feeling upon use. , More preferably 1 to 15% by mass.

The aerosol cosmetic of the present invention may further contain a surfactant other than the component (D) in the stock solution from the viewpoint of improving the solubility of carbon dioxide gas in the stock solution, emulsification stability, and generating many bubbles. it can. Examples of the surfactant other than the component (D) include a nonionic surfactant having an HLB of less than 12, an anionic surfactant, and an amphoteric surfactant.
Examples of the nonionic surfactant having an HLB of less than 12 include a sorbitan fatty acid ester having 8 to 22 carbon atoms; an alkyl glyceryl ether such as isostearyl glyceryl ether; and a polyoxyalkylene-modified silicone.

Examples of sorbitan fatty acid esters include sorbitan monopalmitate, sorbitan monostearate, sorbitan monooleate, sorbitan sesquioleate, sorbitan coconut oil, sorbitan tristearate, and the like. -P10 (HLB, 6.7), sorbitan monostearate as rheodol SP-S10V (HLB4.7), sorbitan monooleate as rheodol SP-O10V (HLB4.3), sorbitan sesquioleate as leodol AO -15 V (HLB 3.7), coconut oil fatty acid sorbitan SP-L10 (HLB 8.6) as sorbitan, and sorbitan tristearate SP-S30V (HLB 2.1) as sorbitan (Kao Corporation) ) Commercially available products or the like can be used.

Examples of the polyoxyalkylene-modified silicone include a polyoxyethylene / methylpolysiloxane copolymer and a poly (oxyethylene / oxypropylene) / methylpolysiloxane copolymer, and are sold by Shin-Etsu Chemical Co., Ltd. “KF-6015” (PEG-3 dimethicone) (HLB4.5), “KF-6019” (PEG-9 dimethicone) (HLB4.5), “SH-3775M” sold by Dow Corning Toray Silicone Co., Ltd. And commercially available products such as "(PEG-12 dimethicone) (HLB5)" and "SH-3773M" (PEG-12 dimethicone) (HLB8).

When a nonionic surfactant having a HLB of less than 12 is used, the content in the stock solution is preferably 0.01 to 1% by mass, more preferably 0.05 to 0.7% by mass.

Examples of the anionic surfactant include alkyl sulfates having 12 to 22 carbon atoms such as sodium lauryl sulfate and potassium lauryl sulfate or salts thereof, and polyoxyethylene having 12 to 22 carbon atoms such as sodium polyoxyethylene lauryl ether phosphate. Alkyl ether phosphoric acid or a salt thereof, C12 to C24 dialkyl sulfosuccinic acid or a salt thereof, C12 to C22 N-alkyloylmethyltaurine or a salt thereof, N-acyl C12 to C22 acylglutamic acid or a salt thereof And the like. Among these, polyoxyethylene alkyl ether phosphoric acid or a salt thereof, and acylglutamic acid or a salt thereof are preferred from the viewpoint of emulsification stability and generation of many bubbles at the time of ejection.
When anionic surfactant is included, the content in the stock solution is preferably 0.01 to 1% by mass, and more preferably 0.05 to 0.7% by mass.

The total content of all the surfactants including the component (D) is preferably from 0.1 to 10% by mass, more preferably from the viewpoint of solubility of carbon dioxide gas, feeling in use, and stability, The content is 0.2 to 8% by mass, more preferably 0.3 to 5% by mass.

In addition, the aerosol cosmetic of the present invention can further contain a dihydric or trihydric alcohol other than the component (B) in the stock solution from the viewpoint of suppressing the volatilization of carbon dioxide gas and the feeling of use after application.
As the dihydric alcohol, propylene glycol, propanediol, 1,3-butylene glycol, 1,3-propanediol, and dipropylene glycol are preferable, and 1,3-propanediol, dipropylene glycol and the like can be mentioned. Examples of the trihydric alcohol include glycerin, diglycerin, polyglycerin and the like.
The content of the dihydric or trihydric alcohol other than the component (B) in the stock solution is preferably 1 to 20% by mass, more preferably 2 to 15% by mass, and further preferably 2 to 10% by mass.

In the aerosol cosmetic of the present invention, the undiluted solution further contains components used in ordinary cosmetics, for example, ethanol, preservatives, antioxidants, pigments, pH adjusters, fragrances, ultraviolet absorbers, humectants, and blood circulation promoting agents. Agents, cooling agents, antiperspirants, bactericides, whitening agents, anti-inflammatory agents, skin activators, and the like.

In the aerosol cosmetic of the present invention, a stock solution is prepared by mixing the above components (A) to (E) and other components. The stock solution has a viscosity at 25 ° C. of from 500 to 20,000 mPa · s, preferably from 1,000 to 10,000 mPa · s, more preferably from 1500 to 7000 mPa · s, from the viewpoint of the emulsion stability of the stock solution and the discharge property of foam.
Here, the viscosity was measured using a BM viscometer (manufactured by Toki Sangyo Co., Ltd.) using a rotor No. When measured at 3, 12 rpm and 1 minute, and the viscosity exceeds 10,000 mPa · s, the rotor No. It is a value measured at 3.6 rpm for 1 minute.

The aerosol cosmetic of the present invention can be manufactured by filling the above-mentioned stock solution and (F) carbon dioxide gas into a pressure-resistant container. As a form of the injection, it is preferable to use a foam type for discharging in a foamed state.
The mass ratio of the undiluted solution and the carbon dioxide gas is preferably 94: 6 to 99.5: 0.5, more preferably 95: 5 to 99: 1, and further preferably 95: 5 to 99: 1 from the viewpoint of the solubility of the carbon dioxide gas in the undiluted solution and the generation of bubbles. Is 96.5: 3.5 to 98.5: 1.5.

エ ア The aerosol cosmetic of the present invention may contain a propellant used for ordinary aerosol cosmetics in addition to the carbon dioxide gas of the component (F). Examples of the propellant include liquefied petroleum gas and compressed gas. When a propellant other than carbon dioxide is contained, the content of carbon dioxide with respect to the total amount of carbon dioxide and propellant is preferably 90% by mass or more, more preferably 95% by mass or more, and even more preferably 98% by mass or more. It is.

The aerosol cosmetic of the present invention can be applied as a cosmetic without any particular limitation. However, since the carbon dioxide gas is absorbed percutaneously and the effect of promoting blood circulation higher than the conventional one is obtained, the skin color (brightness, dullness) And the like, and are suitable as skin cosmetics used for improving the moisturizing feeling.

The aerosol cosmetic of the present invention is applied to the skin and then left for a certain period of time to form a coating film containing air bubbles, thereby enhancing the effect of promoting blood circulation. Further, the active ingredient in the cosmetic can also be permeated together, and is considered to be very beneficial.
The aerosol cosmetic of the present invention can be applied to the skin and left for a certain period of time, applied to the skin, wiped off, or washed off, and used according to the use scene.

The aerosol cosmetic of the present invention can be produced by a usual method, for example, by the following steps 1 to 4.
Step 1: Components (C) and (E) and a base component are mixed and made uniform.
(In this step 1, it is preferable to heat to 50 ° C. or higher.)
Step 2: The components (A), (B), (D) and, if necessary, other components are added to the liquid obtained in step 1, and the mixture is stirred to make it uniform.
Step 3: The liquid obtained in step 2 is cooled to 15 to 30 ° C.
Step 4: The liquid (also referred to as a stock solution) obtained in Step 3 is filled in a pressure-resistant container, and after sealing, the component (F) is filled by pressurizing.

に 関 し With respect to the above-described embodiment, the present invention further discloses the following composition.

<1> The following components (A), (B), (C), (D) and (E):
(A) a dimethylpolysiloxane having a viscosity at 25 ° C. of 6 to 5000 mPa · s,
(B) polyethylene glycol having a molecular weight of 300 to 15,000,
(C) a water-soluble thickener,
(D) a nonionic surfactant of HLB 12-18,
(E) containing water, the content of the component (A) is 0.1 to 20% by mass, and the mass ratio (A) / (B) of the component (A) to the component (B) is 0.1 to 20; And a stock solution having a viscosity at 25 ° C. of 500 to 20,000 mPa · s, and (F) an aerosol cosmetic containing carbon dioxide gas.

<2> The aerosol cosmetic composition according to <1>, wherein the viscosity of the component (A) at 25 ° C is preferably 10 mPa · s or more, preferably 1000 mPa · s or less, and more preferably 500 mPa · s or less.
<3> The content of the component (A) is preferably 0.5% by mass or more in the stock solution, more preferably 1% by mass or more, preferably 15% by mass or less, and more preferably 7% by mass or less. The aerosol cosmetic according to <1> or <2>.
<4> Component (A) is a case where two or more dimethylpolysiloxanes are blended, and preferably, dimethylpolysiloxane of less than 30 mPa · s and dimethylpolysiloxane of 30 mPa · s or more are mixed in a ratio of 1: 0. The aerosol cosmetic according to any one of <1> to <3>, wherein the cosmetic is contained in a mass ratio of 1 to 1:10.
<5> Component (A) is a case where two or more kinds of dimethylpolysiloxanes are blended, and preferably, dimethylpolysiloxane of 100 mPa · s or more is 3% by mass or less, and 1% by mass or less. The aerosol cosmetic according to any one of the above <1> to <4>, which is more preferable.

<6> The aerosol cosmetic according to any one of <1> to <5>, wherein the polyethylene glycol of the component (B) preferably has an average molecular weight of 300 to 10,000, and more preferably 500 to 5000.
<7> The content of the component (B) is preferably 0.1% by mass or more in the stock solution, more preferably 0.3% by mass or more, still more preferably 0.5% by mass or more, and 10% by mass. % Or less, more preferably 8% by mass or less, and even more preferably 5% by mass or less. The aerosol cosmetic according to any one of the above items <1> to <6>.
<8> The mass ratio (A) / (B) of the component (A) to the component (B) is preferably 0.5 to 15, and more preferably 0.8 to 5 in the above <1> to <7> The aerosol cosmetic according to any one of the above.

<9> Component (C) is preferably an acrylic acid-based polymer, more preferably a carboxyvinyl polymer or an acrylic acid / alkyl acrylate copolymer, and (acrylic acid / alkyl acrylate (C10-30)) copolymer. The aerosol cosmetic according to any one of <1> to <8>, which is more preferable.
<10> The content of the component (C) is preferably 0.05% by mass or more in the stock solution, more preferably 0.1% by mass or more, still more preferably 0.2% by mass or more, and 1% by mass. % Or less, more preferably 0.8% by mass or less, and even more preferably 0.7% by mass or less, the aerosol cosmetic according to any one of the above <1> to <9>.

<11> The aerosol cosmetic according to any one of <1> to <10>, wherein the nonionic surfactant of the component (D) is preferably HLB 13 to 15.
<12> The aerosol cosmetic according to any one of <1> to <11>, wherein the component (D) is preferably a polyoxyethylene alkyl ether or a polyoxyethylene hydrogenated castor oil.
<13> The content of the component (D) is preferably 0.05% by mass or more in the stock solution, more preferably 0.1% by mass, even more preferably 0.2% by mass or more, and 16% by mass. The aerosol cosmetic according to any one of the above items <1> to <12>, wherein the content is preferably at most 4% by mass, more preferably at most 4% by mass.
<14> The water content of the component (E) is preferably 55% by mass or more in the stock solution, more preferably 65% by mass or more, still more preferably 70% by mass or more, and preferably 99% by mass or less. , 95% by mass or less, more preferably 90% by mass or less, even more preferably <1> to <13>.

<15> The aerosol cosmetic according to any one of <1> to <14>, wherein the stock solution can further contain an oil other than the component (A) as the component (G).
<16> The aerosol cosmetic according to <15>, wherein the oil agent of the component (G) is preferably an oil agent which is liquid at 25 ° C, a solid wax, paste or solid fat at 25 ° C.
<17> The aerosol according to <15> or <16>, wherein the content of the component (G) is preferably 0.1 to 15% by mass in the stock solution, more preferably 0.5 to 10% by mass. Cosmetics.
<18> The total amount of the oil agent (component (A) and component (G)) in the stock solution is preferably 0.1 to 20% by mass, and more preferably 1 to 15% by mass. The aerosol cosmetic according to any one of <17>.

<19> The aerosol cosmetic preparation according to any one of <1> to <18>, wherein the stock solution further contains a surfactant other than the component (D).
<20> The aerosol cosmetic according to <19>, wherein the surfactant other than the component (D) is preferably a nonionic surfactant having an HLB of less than 12, an anionic surfactant, or an amphoteric surfactant.
<21> The nonionic surfactant having an HLB of less than 12 is preferably a sorbitan fatty acid ester having 8 to 22 carbon atoms, an alkyl glyceryl ether, or a polyoxyalkylene-modified silicone, and the content in the stock solution is preferably 0. The aerosol cosmetic according to <20>, wherein the amount is 0.01 to 1% by mass, and more preferably 0.05 to 0.7% by mass.
<22> The anionic surfactant is preferably polyoxyethylene alkyl ether phosphoric acid or a salt thereof, acylglutamic acid or a salt thereof, and the content in the stock solution is preferably 0.01 to 1% by mass. The aerosol cosmetic according to <20>, wherein the content is more preferably from 0.05 to 0.7% by mass.
<23> The total content of all surfactants including the component (D) is preferably 0.1 to 10% by mass, more preferably 0.2 to 8% by mass in the stock solution. The aerosol cosmetic according to any one of <1> to <22>, further preferably 3 to 5% by mass.

<24> The aerosol cosmetic according to any one of <1> to <23>, wherein a dihydric or trihydric alcohol other than the component (B) can be further contained in the stock solution.
<25> Dihydric or trihydric alcohols other than the component (B) are preferably propylene glycol, propanediol, 1,3-butylene glycol, 1,3-propanediol, dipropylene glycol, glycerin, diglycerin, The aerosol cosmetic according to <24>, which is polyglycerin.
<26> The content of the dihydric or trihydric alcohol other than the component (B) is preferably 1 to 20% by mass, more preferably 2 to 15% by mass, and more preferably 2 to 10% by mass in the stock solution. The aerosol cosmetic according to <24> or <25>, which is more preferable.

<27> The viscosity of the stock solution at 25 ° C. is preferably from 500 to 20,000 mPa · s, more preferably from 1,000 to 10,000 mPa · s, and still more preferably from 1500 to 7000 mPa · s. The aerosol cosmetic preparation according to item 1 above.
<28> The mass ratio of the stock solution to (F) carbon dioxide is preferably 94: 6 to 99.5: 0.5, more preferably 95: 5 to 99: 1, and 96.5: 3. The aerosol cosmetic according to any one of <1> to <27>, further preferably 5 to 98.5: 1.5.
<29> The aerosol cosmetic according to any one of <1> to <28>, which is a skin cosmetic used for improving skin color (such as brightness and dullness) and improving moisturizing feeling.
<30> The aerosol cosmetic composition according to any one of <1> to <29>, which is applied to the skin, left for a certain period of time, adapted to the skin, wiped off, or washed off and used.

<31> The aerosol cosmetic according to any one of <1> to <30>, which can be produced by the following steps 1 to 4.
Step 1: Components (C) and (E) and a base component are mixed and made uniform.
(In this step 1, it is preferable to heat to 50 ° C. or higher.)
Step 2: The components (A), (B), (D) and, if necessary, other components are added to the liquid obtained in step 1, and the mixture is stirred to make it uniform.
Step 3: The liquid obtained in step 2 is cooled to 15 to 30 ° C.
Step 4: The liquid (also referred to as a stock solution) obtained in Step 3 is filled in a pressure-resistant container, and after sealing, the component (F) is filled by pressurizing.

Examples 1 to 6 and Comparative Examples 1 and 2
An aerosol cosmetic having the composition shown in Table 1 was manufactured, and the viscosity of the stock solution at 25 ° C. was measured, and the feeling of use (non-stickiness, smoothness, and softness), the rate of carbon dioxide gas volatilization, and the amount of carbon gas volatilized were evaluated. did. The results are shown in Table 1.
The rate of volatilization of carbon dioxide gas and the evaluation of the amount of volatilization are to explain the amount of carbon dioxide gas contained in the foam discharged from the aerosol cosmetic, and to reach a certain amount about 5 minutes after the discharge of the foam. After 10 minutes, the difference in the amount of volatilization can be evaluated.

(Production method)
Step 1: Components (C) and (E) and a base component are mixed and made uniform at a temperature of 60 to 70 ° C.
Step 2: The components (A), (B), (D), (G) and other components are added to the liquid obtained in step 1, and the mixture is stirred to make it uniform.
Step 3: The liquid obtained in step 2 is cooled to 15 to 30 ° C.
Step 4: The liquid (stock solution) obtained in Step 3 was filled in a pressure-resistant container, sealed, and then filled by pressurizing the component (F) to obtain an aerosol cosmetic.

(Evaluation method)
(1) Stock solution viscosity:
The stock solution was filled into a 50 mL glass container in an amount of 50 g, and measured using a BM viscometer (manufactured by Toki Sangyo Co., Ltd.) (rotor NO4, 12 rpm, 1 minute).

(2) Feeling (non-stickiness, smoothness, softness):
Three specialized panels applied 1 g of each aerosol cosmetic on the inner side of the forearm, and performed a sensory evaluation on smoothness and softness immediately after spreading, based on the following criteria.
1; not at all.
2: almost no.
3: Somewhat.
4;
5: Very much.
The non-stickiness was evaluated organoleptically according to the following criteria.
1: There is considerable stickiness.
2: There is stickiness.
3: There is some stickiness.
4: No stickiness.
5: No stickiness at all.

(3) Carbon dioxide gas volatilization rate:
As shown in FIG. 1, after discharging about 1 g of each aerosol cosmetic into a cylindrical glass container (the inside of the container has a diameter of 25 mm and a height of 38 mm), a carbon dioxide gas electrode CE-2041 (manufactured by Toa DKK Ltd.) is applied. The sample was inserted without touching the sample, and the carbon dioxide concentration was measured with the glass container sealed. The measuring device (carbonate ion concentration meter) is ION / pH METER IM-32P.
The change per minute was calculated for the change in carbon dioxide concentration for 1 minute to 5 minutes from the start of the measurement, and the rate was defined as the volatilization rate of carbon dioxide (ppm / min).
1: less than 15 ppm / min.
2: 15 ppm / min or more and less than 25 ppm / min.
3: 25 ppm / min or more and less than 30 ppm / min.
4: 30 ppm / min or more and less than 35 ppm / min.
5: 35 ppm / min or more.

(4) Emission of carbon dioxide:
The carbon dioxide concentration was measured in the same manner as in (3), and the carbon dioxide concentration 10 minutes after the start of the measurement was defined as the amount of carbon dioxide gas volatilized (ppm) as the amount of carbon dioxide gas volatilized sufficiently in the glass container. The score was based on the following criteria.
1: Less than 65 ppm.
2: 65 ppm or more and less than 100 ppm.
3: 100 ppm or more and less than 150 ppm.
4: 150 ppm or more and less than 200 ppm.
5: 200 ppm or more.

From the results shown in Table 1, all of Examples 1 to 6 of the present invention had an effect of suppressing the volatilization of carbon dioxide gas, and had good stickiness after coating and a good balance between smoothness and softness. Comparative Example 1 using a low-viscosity silicone oil was inferior in the effect of suppressing carbon dioxide gas volatilization, and Comparative Example 2 using a high-viscosity silicone oil was inferior in the effect of suppressing carbon dioxide gas volatilization and feeling in use.

Examples 7 to 9, Comparative Example 3
Aerosol cosmetics having the compositions shown in Table 2 were produced in the same manner as in Examples 1 to 6, and the viscosity of the stock solution at 25 ° C. was measured, and the feeling of use (non-stickiness, smoothness, and softness) was evaluated. The results are shown in Table 2.

From the results shown in Table 2, all of Examples 7 to 9 of the present invention had an effect of suppressing the volatilization of carbon dioxide gas, and had good stickiness after coating and a good balance between smoothness and softness. Comparative Example 3 using polyethylene glycol having a large molecular weight was inferior in use feeling.

Test example 1
With respect to the aerosol cosmetics of Examples 1 to 9 and Comparative Examples 1 to 3, the rate of change of carbon dioxide gas volatilization rate and the amount of change of carbon dioxide gas volatilization were evaluated. Table 3 shows the results.

(Evaluation method)
(5) Rate of change of carbon dioxide volatilization rate:
In Example 5, a composition containing no dimethylpolysiloxane (component (A)) was used as a control formulation. For each aerosol cosmetic, the change per minute was calculated for the change in carbon dioxide concentration for 1 minute to 5 minutes from the start of measurement in the same manner as in (3) above, and the rate of volatilization of carbon dioxide was calculated. (Ppm / min). For each aerosol cosmetic, the difference in the rate of volatilization from the control formulation was determined, and the rate of change in the rate of volatilization was used, and evaluated using the following reference score.
In the control prescription, the volatilization of carbon dioxide is not suppressed, and the volatilization rate is increased. Therefore, the volatilization rate of the carbon dioxide is suppressed as the difference in the volatilization rate from the control prescription increases (the smaller the reference score). It indicates that.
1: Change rate of volatilization rate is 23.5 ppm / min or more.
2: Change rate of volatilization rate is 13.5 ppm / min or more and less than 23.5 ppm / min.
3: Change rate of volatilization rate is 8.5 ppm / min or more and less than 13.5 ppm / min.
4: Change rate of volatilization rate is 3.5 ppm / min or more and less than 8.5 ppm / min.
5: Volatilization rate change rate is less than 3.5 ppm / min.

(6) Change in carbon dioxide volatilization:
In the same manner as in (5), the carbon dioxide concentration of each aerosol cosmetic was measured, and the carbon dioxide concentration 10 minutes after the start of the measurement was defined as the carbon dioxide gas emission amount (ppm). For each aerosol cosmetic, the difference in the amount of carbon dioxide gas volatilized from the control formula was determined, and the difference was calculated as the amount of volatilization change, and evaluated using the following reference score.
In the control prescription, the volatilization of carbon dioxide gas is not suppressed, and the amount of volatilization increases. Therefore, the larger the difference in the amount of volatilization from the control prescription (the smaller the reference score), the more the amount of volatilization of carbon dioxide gas is suppressed. To indicate that
1: Volatilization change is 164 ppm or more.
2: Change in volatilization is 129 ppm or more and less than 164 ppm.
3: Change in volatilization is 79 ppm or more and less than 129 ppm.
4: Change in volatilization is 29 ppm or more and less than 79 ppm.
5: Change in volatilization is less than 29 ppm.

Formulation Example 1
In the same manner as in Example 1, a stock solution of Formulation Example 1 was prepared. This stock solution and carbon dioxide gas were filled into a pressure-resistant container at a ratio of 97.6: 2.4 to obtain an aerosol cosmetic.
The obtained aerosol cosmetic is excellent in feeling of use (non-stickiness, smoothness, and softness), the volatilization rate of carbon dioxide, and the amount of carbon dioxide volatilized.

(Component) (% by mass)
Dipotassium edetate 0.05
Methyl paraoxybenzoate 0.2
Potassium dihydrogen phosphate 0.2
Potassium hydroxide solution (A) 0.5
(Acrylic acid / alkyl acrylate (C10-30)) copolymer (PEMULEN TR-1) 0.35
Polyoxyethylene hydrogenated castor oil (Emanon CH60K) 0.5
Polyoxyethylene methylpolysiloxane copolymer (SH3775M)
0.5
Alkyl benzoate (C = 12-15) 2.0
Methyl polysiloxane (10cs) 2.0
Methyl polysiloxane (50cs) 3.0
Aqueous dispersion of lauryl methacrylate / ethylene glycol dimethacrylate / sodium methacrylate copolymer (Sofcare ST-G) 1.25
Dipropylene glycol 5.0
1,3-propanediol 2.0
Polyethylene glycol 1540 1.0
Nicotinamide 0.01
Phenoxyethanol 0.35
Fragrance 0.1
Purified water balance <br/> Stock solution total 100

Formulation Example 2
In the same manner as in Example 1, a stock solution of Formulation Example 2 was prepared. This undiluted solution and carbon dioxide gas were filled into a pressure-resistant container at a ratio of 97.8: 2.2 to obtain an aerosol cosmetic.
The obtained aerosol cosmetic is excellent in feeling of use (non-stickiness, smoothness, and softness), the volatilization rate of carbon dioxide, and the amount of carbon dioxide volatilized.

(Component) (% by mass)
Dipotassium edetate 0.05
Methyl paraoxybenzoate 0.2
Potassium dihydrogen phosphate 0.2
Potassium hydroxide solution (A) 0.5
(Acrylic acid / alkyl acrylate (C10-30)) copolymer (PEMULEN TR-1) 0.4
Polyoxyethylene hydrogenated castor oil (Emanon CH60K) 0.5
Polyoxyethylene methylpolysiloxane copolymer (SH3775M)
0.5
Isotridecyl isononanoate 2.0
Methyl polysiloxane (30 cs) 5.0
Aqueous dispersion of lauryl methacrylate / ethylene glycol dimethacrylate / sodium methacrylate copolymer (Sofcare ST-G) 1.25
Dipropylene glycol 5.0
1,3-propanediol 2.0
Polyethylene glycol 1540 1.0
Nicotinamide 1.0
Yuzu extract 0.5
Phenoxyethanol 0.35
Fragrance 0.1
Purified water balance <br/> Stock solution total 100

Claims (6)

The following components (A), (B), (C), (D) and (E):
(A) a dimethylpolysiloxane having a viscosity at 25 ° C. of 6 to 5000 mPa · s,
(B) polyethylene glycol having a molecular weight of 300 to 15,000,
(C) a water-soluble thickener,
(D) a nonionic surfactant of HLB 12-18,
(E) containing water, the content of the component (A) is 0.1 to 20% by mass, and the mass ratio (A) / (B) of the component (A) to the component (B) is 0.1 to 20; And a stock solution having a viscosity at 25 ° C. of 500 to 20,000 mPa · s, and (F) an aerosol cosmetic containing carbon dioxide gas. エ ア The aerosol cosmetic according to claim 1, wherein the content of the component (B) is 0.1 to 10% by mass in the stock solution. エ ア The aerosol cosmetic according to claim 1 or 2, wherein the component (C) is an acrylic acid-based polymer. (4) The aerosol cosmetic according to any one of (1) to (3), wherein the stock solution further contains an oil agent other than the component (A). The dimethylpolysiloxane of the component (A) contains dimethylpolysiloxane of less than 30 mPa · s and dimethylpolysiloxane of 30 mPa · s or more in a mass ratio of 1: 0.1 to 1:10. The aerosol cosmetic according to any one of claims 1 to 7. The aerosol according to any one of claims 1 to 5, wherein the stock solution further contains, as a surfactant other than the component (D), a nonionic surfactant having an HLB of less than 12, an anionic surfactant, and an amphoteric surfactant. Cosmetics.

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