阅读说明：本技术 泡状气雾剂化妆品 (Bubble aerosol cosmetic ) 是由 渡边百合香 松田崇志 清水秀树 于 2019-01-15 设计创作，主要内容包括：本发明的课题是提供即使紫外线吸收剂的配合高,泡质也良好且持泡性也好的泡状气雾剂化妆品。解决手段是使泡状气雾剂化妆品包含原液和喷射剂,并且使原液包含：(A)加成摩尔数为40以上的蓖麻油；(B)粉末；(C)两性表面活性剂；(D)包含紫外线吸收剂的极性油,其量相对于原液总量为5质量％以上；以及(E)水。(The invention provides a bubble aerosol cosmetic having good bubble quality and good bubble-holding property even if an ultraviolet absorber is blended in a high content. The solution is to make the bubble aerosol cosmetic contain a stock solution and a propellant, and make the stock solution contain: (A) castor oil with addition mole number of more than 40; (B) powder; (C) an amphoteric surfactant; (D) a polar oil containing an ultraviolet absorber in an amount of 5% by mass or more relative to the total amount of the stock solution; and (E) water.)

1. A foaming aerosol cosmetic comprising a stock solution and a propellant, the stock solution comprising:

(A) castor oil with addition mole number of more than 40;

(B) powder;

(C) an amphoteric surfactant;

(D) a polar oil containing an ultraviolet absorber in an amount of 5% by mass or more relative to the total amount of the stock solution; and

(E) and (3) water.

2. The foaming aerosol cosmetic of claim 1, further comprising (F) bentonite.

3. The bubble aerosol cosmetic according to claim 1 or 2, wherein the (C) amphoteric surfactant is betaine.

4. The bubble aerosol cosmetic according to claim 1, 2 or 3, wherein the molar number of addition of the castor oil (A) is 60 or more.

5. The foaming aerosol cosmetic according to any one of claims 1 to 4, which comprises 1.2% by mass or more of the (A) castor oil with respect to the total amount of a stock solution.

6. The foaming aerosol cosmetic according to any one of claims 1 to 5, wherein the powder (B) is talc.

7. The foaming aerosol cosmetic according to any one of claims 1 to 6, which comprises 2.5% by mass or less of the (B) powder relative to the total amount of a stock solution.

Technical Field

The present invention relates to a foaming aerosol (aerosol) cosmetic, and more particularly to a foaming aerosol cosmetic containing an ultraviolet absorber.

Background

Protection of skin from ultraviolet rays is one of important issues in skin care, body care, and hair care, and various uv (ultraviolet) care cosmetics have been developed to minimize adverse effects of ultraviolet rays on skin and the like. Sunscreen cosmetic (sunscreens cosmetic) of 1 kind as a UV care cosmetic prevents UVA and UVB from reaching the skin by compounding an ultraviolet absorber and an ultraviolet scattering agent, thereby protecting the skin from UV rays.

Conventionally, sunscreen cosmetics are known, such as cosmetics in a form of applying an emulsion-like or gel-like substance contained in a container to the skin by hand, cosmetics in a form of applying a rod-like substance contained in a container directly to the skin, and cosmetics in a form of spraying a substance directly to the skin. Among them, a bubble aerosol cosmetic using vaporization heat of liquefied gas is preferable because a feeling of a cool silk can be obtained at the moment of application in a hot period.

As a foam aerosol cosmetic containing an ultraviolet absorber, for example, patent document 1 describes a cosmetic containing a certain amount of a coloring pigment, which can modify skin color to natural and beautiful skin with a transparent feeling.

Patent document 2 describes a foamy cosmetic composition containing an aqueous phase, talc, and 1 UV sunscreen ingredient in a medium.

Disclosure of Invention

Problems to be solved by the invention

The foam aerosol cosmetic is required to have good foam-holding properties in order to spread the discharged foam, and also required to have a foam quality such as a touch of the foam when spread and a fine texture of the foam in view of ease of application to the skin and the like. Further, in order to sufficiently exhibit a sunscreen effect, it is necessary to blend an ultraviolet absorber in the sunscreen cosmetic. However, if the ultraviolet absorber is blended at a high level, the total amount of oil increases, and the foam quality and foam-holding property deteriorate.

The foam aerosol cosmetic disclosed in patent document 1 has a low content of the ultraviolet absorber, and has poor foam quality and insufficient foam-retaining property. In addition, the foam aerosol cosmetic described in patent document 2 also describes that the blending amount of the ultraviolet absorber is high, but if the foam quality is poor, the foam-holding property is insufficient.

The present invention has been made in view of the above circumstances, and an object thereof is to provide a foam aerosol cosmetic having good foam quality and good foam-holding property even when an ultraviolet absorber is blended in a high amount.

Means for solving the problems

The foamy aerosol cosmetic of the present invention comprises a stock solution and a propellant, the stock solution comprising:

(A) castor oil with addition mole number of more than 40;

(B) powder;

(C) an amphoteric surfactant;

(D) a polar oil containing an ultraviolet absorber in an amount of 5% by mass or more relative to the total amount of the stock solution; and

(E) and (3) water.

The bubble aerosol cosmetic preferably further comprises (F) bentonite.

(C) The amphoteric surfactant is preferably betaine.

(A) The number of moles of castor oil added is preferably 60 or more.

The castor oil (a) is preferably contained in an amount of 1.2 mass% or more based on the total amount of the stock solution.

(B) The powder is preferably talc.

The powder (B) is preferably contained in an amount of 2.5% by mass or less based on the total amount of the stock solution.

ADVANTAGEOUS EFFECTS OF INVENTION

The bubble aerosol cosmetic of the present invention comprises a stock solution and a propellant, and the stock solution comprises:

(A) castor oil with addition mole number of more than 40;

(B) powder;

(C) an amphoteric surfactant;

(D) a polar oil containing an ultraviolet absorber in an amount of 5% by mass or more relative to the total amount of the stock solution; and

(E) the amount of water is controlled by the amount of water,

therefore, even if the ultraviolet absorber is blended in a high amount, the foam-like aerosol cosmetic composition can have good foam quality and good foam-holding property.

Detailed Description

The bubble aerosol cosmetic of the present invention will be described in detail below.

The foamy aerosol cosmetic of the present invention comprises a stock solution and a propellant, the stock solution comprising:

(A) castor oil with addition mole number of more than 40;

(B) powder;

(C) an amphoteric surfactant;

(D) a polar oil containing an ultraviolet absorber in an amount of 5% by mass or more relative to the total amount of the stock solution; and

(E) and (3) water.

Hereinafter, each component will be described in detail.

Castor oil with 40 or more addition mole number of (A)

The castor oil having a mole number of addition of (a) of 40 or more (hereinafter, also simply referred to as component (a)) used in the present invention means a castor oil having a mole number of addition of an average of ethylene oxide of polyoxyethylene hydrogenated castor oil (the average is omitted in the present specification and simply referred to as the mole number of addition) of 40 or more. It should be noted that polyoxyethylene hydrogenated castor oil is a polyethylene glycol ether of hydrogenated castor oil. The average molar number of addition of ethylene oxide is preferably 60 or more and 100 or less, and most preferably the average molar number of addition of ethylene oxide of the polyoxyethylene hydrogenated castor oil is 60.

When the average molar number of addition of ethylene oxide is 40 or more, the foam quality is good and the foam-holding property can be made good.

(A) The amount of the component (c) is preferably 1.2% by mass or more, more preferably 1.3 to 3% by mass, based on the total amount of the stock solution. The foam quality can be improved by the amount of the component (A) added being 1.2% by mass or more based on the total amount of the stock solution.

Powder (B) <

(B) The powder is not particularly limited as long as it is a powder used in general cosmetics, and examples thereof include inorganic powders such as talc, mica (マイカ), kaolin, mica (yunmu), sericite (sericite), muscovite, phlogopite, synthetic mica, lepidolite, biotite, lepidolite, vermiculite, magnesium carbonate, calcium carbonate, aluminum silicate, barium silicate, calcium silicate, magnesium silicate, strontium silicate, metal tungstate, magnesium, spherical silica, zeolite, barium sulfate, calcined calcium sulfate (calcined gypsum), calcium phosphate, fluorapatite, hydroxyapatite, ceramic powder, metal soap (zinc myristate, calcium palmitate, aluminum stearate, etc.), boron nitride, etc.; spherical organic powders such as polyamide spherical resin powder (nylon spherical powder), spherical polyethylene, crosslinked polymethyl (meth) acrylate spherical resin powder, spherical polyester, crosslinked polystyrene spherical resin powder, spherical resin powder of a copolymer of styrene and acrylic acid, benzoguanamine spherical resin powder, polytetrafluoroethylene spherical powder, and spherical cellulose; inorganic white pigments such as titanium dioxide, zinc oxide, barium sulfate, and zinc oxide coated or compounded with silicic anhydride; inorganic red pigments such as iron oxide (red iron oxide) and iron titanate; inorganic brown pigments such as gamma-iron oxide; inorganic yellow pigments such as yellow iron oxide and yellow soil; inorganic black pigments such as black iron oxide, carbon black and titanium suboxide; inorganic violet pigments such as manganese 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; mica titanium, iron oxide red-coated mica titanium, carmine-coated mica titanium, navy blue-coated mica titanium, titanium oxide-coated synthetic phlogopite, iron oxide red/titanium oxide-coated synthetic phlogopite, titanium oxide-coated glass flake, iron oxide red/titanium oxide-coated glass flake, titanium oxide-coated alumina flake, titanium oxide-coated silica flake, iron oxide/silica-coated aluminum, iron oxide/silica-coated iron oxide, metal-coated plate powder, polyethylene terephthalate/polymethyl methacrylate laminated film powder (which may contain a coloring material), polyethylene terephthalate/polyolefin laminated film powder (which may contain a coloring material), epoxy resin-coated aluminum-deposited polyethylene terephthalate (which may contain a coloring material), aluminum-deposited polyethylene terephthalate (which may contain a coloring material), Urethane resin-coated aluminum vapor deposition polyethylene terephthalate (may contain a coloring material), acrylic resin-coated aluminum powder (may contain a coloring material), titanium oxide-coated mica, titanium oxide-coated bismuth oxychloride, titanium oxide-coated talc, colored titanium oxide-coated mica, bismuth oxychloride, pearlites and other pearlizing/glittering agents.

(B) The powder contains either hydrophilic or hydrophobic. The hydrophilic powder may be subjected to a hydrophobic treatment. The hydrophobization treatment can be carried out by a known method. Examples of the hydrophobic treatment include treatments using silicones such as polymethylhydrosiloxane, polymethylhydrosiloxane/polydimethylsiloxane copolymer, and polydimethylsiloxane; treatment with a silane compound such as octyltriethoxysilane or hexyltrimethoxysilane; treatment with fatty acids such as palmitic acid and stearic acid; a metal soap treatment using an alkali metal salt or an alkaline earth metal salt of the above fatty acid; fluorine treatment using perfluoroalkyl phosphoric acid diethanolamine salt, perfluoroalkyl trimethoxysilane, or the like. However, the present invention is not limited to these examples.

(B) The powder may be used alone in 1 kind, or may be used in combination of 2 or more kinds as appropriate. Among them, talc is preferably used from the viewpoint of improvement of foam quality and foam-retaining property.

(B) The amount of the powder to be blended is more preferably 2.5% by mass or less based on the total amount of the stock solution. By setting the amount of the powder (B) to 2.5% by mass or less, a preparation which can be easily spread while retaining the foam quality can be produced. (B) The lower limit of the amount of the powder to be blended is preferably 1 mass% or more based on the total amount of the stock solution, although it depends on the kind of the powder.

(C) amphoteric surfactant

Examples of the amphoteric surfactant (C) include amide betaine types such as lauric acid amide propyl betaine and coconut fatty acid amide propyl betaine, amide sulfobetaine types such as laurylaminoalkylenedimethylaminosulfobetaine, betaine types such as lauryl (dimethyl) betaine, stearyl (dimethyl) betaine and stearyl dihydroxyethylbetaine, sulfobetaine types such as lauryl sulfobetaine and lauryl hydroxysulfobetaine, 2-undecyl-N, N, N- (hydroxyethylcarboxymethyl) -2-imidazolinium sodium, and 2-cocoyl-2-imidazoliniumHydroxide-1-carboxyethoxy-2 sodium salt, cocoalkyl N-carboxyethyl N-hydroxyethyl imidazoline

Imidazolines such as betaine

Type amphoteric actives. Such amphoteric surfactants are generally commercially available and can be used as they are.

The amphoteric surfactant can be used alone in 1 kind, also can be properly combined with more than 2 kinds. Among the above, from the viewpoint of fine texture and good foam quality and foam retention, betaines such as carboxybetaine (for example, lauryl betaine) and long-chain alkylamidopropylbetaine are preferably used.

The amount of the amphoteric surfactant (C) is preferably 0.02 to 2% by mass, more preferably 0.05 to 1% by mass, based on the total amount of the stock solution. By containing the (C) amphoteric surfactant in an amount of 0.02 to 2% by mass, foam quality can be improved and foam retention can be improved.

< (D) polar oil containing ultraviolet absorber

(D) The polar oil containing an ultraviolet absorber (hereinafter, also simply referred to as component (D)) is 5% by mass or more based on the total amount of the stock solution. The content of the component (D) is preferably 7 to 50% by mass, more preferably 10 to 30% by mass, based on the total mass of the stock solution.

The amount of the ultraviolet absorber alone is preferably in the range of 2 to 30% by mass, more preferably 5 to 20% by mass, based on the total amount of the stock solution, although it is related to the setting of the spf (sun Protection factor) value.

The stock solution may contain an oil component other than the polar oil, but the proportion of the polar oil to the total amount of the oil component is preferably 20 to 100% by mass, and more preferably 30 to 100% by mass.

The polar oil is an oil having an IOB of 0.05 or more, preferably an ester oil having an IOB of 0.05 to 0.8. Specific examples thereof include isononyl isononanoate, isopropyl myristate, cetyl 2-ethylhexanoate, octyldodecyl myristate, isopropyl palmitate, butyl stearate, hexyl laurate, myristyl myristate, decyl oleate, hexyldecyl dimethyloctanoate, cetyl lactate, myristyl lactate, lanolin acetate, isocetyl stearate, isocetyl isostearate, cholesteryl 12-hydroxystearate, ethylene glycol di-2-ethylhexanoate, dipentaerythritol fatty acid ester, N-alkyldiol monoisostearate, neopentyl glycol didecanoate, diisostearyl malate, glycerol di-2-heptylundecanoate, trimethylolpropane tri-2-ethylhexanoate, trimethylolpropane triisostearate, pentaerythritol tetra-2-ethylhexanoate, and mixtures thereof, Glyceryl tri-2-ethylhexanoate, trimethylolpropane triisostearate, cetyl 2-ethylhexanoate, 2-ethylhexyl palmitate, diethylhexyl naphthalate, alkyl benzoate having 12 to 15 carbon atoms, cetearyl isononanoate, glyceryl tri (octanoate/decanoate), (butylglycol dicaprylate/decanoate), glyceryl trimyristate, glyceryl tri-2-heptylundecanoate, methyl ricinoleate, oleyl oleate, cetostearyl alcohol, acetyl glyceride, 2-heptylundecylpalmitate, diisobutyl adipate, N-lauroyl-L-glutamic acid-2-octyldodecyl ester, di-2-heptylundecyladipate, ethyl laurate, di-2-ethylhexyl sebacate, cetyl palmitate, glyceryl monostearate, 2-hexyldecyl myristate, 2-hexyldecyl palmitate, 2-hexyldecyl adipate, diisopropyl sebacate, di-2-ethylhexyl succinate, ethyl acetate, butyl acetate, amyl acetate, triethyl citrate, 2-ethylhexyl p-methoxycinnamate, tripropylene glycol dineovalerate, and the like. Among them, isononyl isononanoate, glycerol 2-ethylhexanoate, cetyl 2-ethylhexanoate, diisopropyl sebacate and the like are particularly preferable.

The polar oil can be used alone in 1, also can be properly combined with more than 2.

The IOB value is an abbreviation of Inorganic/Organic Balance, a value indicating a ratio of an Inorganic value to an Organic value, and is an index indicating a degree of polarity of an Organic compound. Specifically, the IOB value is represented by "inorganic value/organic value". Here, as for the "inorganic value" and the "organic value", for example, as the "organic value" of 1 carbon atom in the molecule is 20 and the "inorganic value" of 1 hydroxyl group in the molecule is 100, "inorganic values" and "organic values" corresponding to various atoms or functional groups are set, and the "inorganic values" and the "organic values" of all atoms and functional groups in the organic compound are integrated to calculate the IOB value of the organic compound (see, for example, the rattan literature, "chemical region (chemical region)" volume 11, No. 10, pages 719 to 725, and 1957).

The ultraviolet absorber contained in the component (D) may be selected from ultraviolet absorbers generally blended in sunscreen cosmetics, and is not particularly limited.

Specific examples thereof include organic ultraviolet absorbers such as octyl methoxycinnamate (ethylhexyl methoxycinnamate), octocrylene, polyorganosiloxane-15, t-butyl methoxydibenzoylmethane, ethylhexyl triazone, bis-ethylhexyl oxyphenol methoxyphenyl triazine, diethylamino hydroxybenzoyl hexyl benzoate, oxybenzone-3, methylene bis-benzotriazolyl tetramethylbutyl phenol, homosalate, and ethylhexyl salicylate.

The ultraviolet absorber can be used alone in 1, also can be properly combined with more than 2.

Water (E)

In the present invention, the water as the solvent of the stock solution is preferably ion-exchanged water, and a lower alcohol such as ethanol or isopropanol may be added. The amount of water to be added (the total amount of water and lower alcohol when lower alcohol is contained) may be appropriately determined, but is usually preferably 40 to 95% by mass based on the total amount of the stock solution.

(F) Bentonite

The foamy aerosol cosmetic of the present invention preferably contains (F) bentonite. (F) Bentonite is a known water-swellable clay mineral containing montmorillonite as a main component, and functions as a caking inhibitor for inhibiting the solidification of the powder (B).

Therefore, the blending amount of (F) bentonite is appropriately adjusted according to the blending amount of (B) powder, and the mass ratio of (F) bentonite to (B) powder ((F) bentonite/(B) powder) is desirably in the range of 0.01 to 0.6, and more preferably 0.03 to 0.4. By setting the amount to this range, the caking of the foam aerosol cosmetic can be effectively suppressed even when the amount of the powder (B) is large, and the stability of the foam aerosol cosmetic can be improved.

The amount of bentonite (F) added to the total amount of the raw liquid is preferably 0.2 to 2 mass%, more preferably 0.5 to 1.5 mass%. By containing (F) bentonite in an amount of 0.2 to 2% by mass, caking of the powder can be suppressed without impairing the feeling of use.

The stock solution in the foamy aerosol cosmetic of the present invention may contain, in addition to the above-mentioned essential components, components that can be blended in the cosmetic, for example, water-soluble polymers, chelating agents, antioxidants, preservatives, vitamins, drugs such as hormones, perfumes, and the like, in accordance with the purpose of the product, within a range that does not impair the effect of the present invention, and can be produced by a conventional method.

The propellant used in the present invention is not particularly limited as long as it can be used for all aerosol products, and various Liquefied Petroleum Gases (LPG), dimethyl ether, a mixture of liquefied petroleum gas and dimethyl ether, compressed gas, and the like can be used. LPG is liquefied petroleum gas containing propane, butane, and isobutane as main components. Among them, from the viewpoint of injectability and solubility, liquefied gases composed of liquefied petroleum gas and/or dimethyl ether are desirable.

The amount of the propellant is usually 70/30 to 95/5, preferably 80/20 to 93/7, in terms of the mass ratio of the stock solution to the propellant. The initial internal pressure is preferably 0.3 to 0.5 MPa.

The foam aerosol cosmetic of the present invention is produced by sealing the stock solution in an aerosol can by a conventional method.

The application of the bubble aerosol cosmetic of the present invention is not limited, and the bubble aerosol cosmetic can be used as a hair cosmetic other than skin.