JP5554005B2 - Foam skin application - Google Patents
Foam skin application Download PDFInfo
- Publication number
- JP5554005B2 JP5554005B2 JP2009095939A JP2009095939A JP5554005B2 JP 5554005 B2 JP5554005 B2 JP 5554005B2 JP 2009095939 A JP2009095939 A JP 2009095939A JP 2009095939 A JP2009095939 A JP 2009095939A JP 5554005 B2 JP5554005 B2 JP 5554005B2
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- JP
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- Prior art keywords
- skin
- foam
- mass
- mpa
- carbon dioxide
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000006260 foam Substances 0.000 title claims description 47
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 92
- 239000001569 carbon dioxide Substances 0.000 claims description 45
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 45
- 239000000203 mixture Substances 0.000 claims description 45
- 229930195733 hydrocarbon Natural products 0.000 claims description 26
- 150000002430 hydrocarbons Chemical class 0.000 claims description 26
- 230000017531 blood circulation Effects 0.000 claims description 23
- 239000004215 Carbon black (E152) Substances 0.000 claims description 21
- 239000003795 chemical substances by application Substances 0.000 claims description 21
- 239000007788 liquid Substances 0.000 claims description 20
- 230000001737 promoting effect Effects 0.000 claims description 18
- 239000011248 coating agent Substances 0.000 claims description 16
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- 125000004432 carbon atom Chemical group C* 0.000 claims description 15
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- 239000008199 coating composition Substances 0.000 claims description 8
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Landscapes
- Cosmetics (AREA)
- Medicinal Preparation (AREA)
Description
本発明は、二酸化炭素を含有する泡沫状皮膚塗布剤に関する。 The present invention relates to a foamy skin coating agent containing carbon dioxide.
二酸化炭素(炭酸ガス)が皮膚に作用すると皮膚の血行が促進されることから、種々の二酸化炭素含有化粧料が提案されている。例えば、二酸化炭素を含有する化粧料において、一時的に飽和濃度の二酸化炭素を供給し、また水に比べて高い溶解度を示すエタノールなどの共存下でより高い二酸化炭素飽和溶液での供給方法が示されている(特許文献1)。さらに二酸化炭素の揮散を抑制するために噴射液体を高粘度に保つ手法や、二酸化炭素を高濃度に保持するために多価アルコールを高濃度に共存させる方法などが知られている(特許文献2〜3)。 Since carbon circulation is promoted when carbon dioxide (carbon dioxide gas) acts on the skin, various carbon dioxide-containing cosmetics have been proposed. For example, in cosmetics containing carbon dioxide, a method of supplying a saturated carbon dioxide solution at a higher concentration in the presence of ethanol or the like that temporarily supplies saturated carbon dioxide and has higher solubility than water is shown. (Patent Document 1). Furthermore, a method of keeping the jet liquid at a high viscosity to suppress the volatilization of carbon dioxide, a method of coexisting polyhydric alcohol at a high concentration to keep carbon dioxide at a high concentration, and the like are known (Patent Document 2). ~ 3).
一方、多くのエアゾール剤において、泡沫を形成させるために噴射ガスとしてプロパン、イソブタン及びノルマルブタンを成分とする液化石油ガス(LPG)が用いられている。しかし、液化石油ガスは引火性が強く、低温時の発泡性に劣るという問題がある。この問題を解決するための技術として、例えば、水及び界面活性剤を含有する水性原液、液化石油ガスと共に炭酸ガスを含有させることにより、火気に対する安全性が高く、低温時でも発泡性に差がみられないエアゾールフォーム組成物(特許文献4)、原液100質量%に対し0〜4質量%の液化ガスに加えて炭酸ガスなどのような圧縮ガスを加え補圧することによる不燃性のエアゾール型フォーム製品(特許文献5)が知られている。一方、有効成分水性溶液を含有する原液、ノルマルブタン及び炭酸ガスのみからなる噴射剤を含有させることにより、引火性が低く、液化石油ガスを用いるよりも低温起泡性に優れ、高温安全性の良い起泡性エアゾール組成物(特許文献6)が知られているが、ノルマルブタンは高価である。 On the other hand, in many aerosol agents, liquefied petroleum gas (LPG) containing propane, isobutane, and normal butane as components is used to form foam. However, liquefied petroleum gas has a problem that it is highly flammable and inferior in foamability at low temperatures. As a technique for solving this problem, for example, by adding carbon dioxide together with an aqueous stock solution containing water and a surfactant, and liquefied petroleum gas, safety against fire is high, and there is a difference in foamability even at low temperatures. Incombustible aerosol foam composition (Patent Document 4), non-flammable aerosol foam by adding compressed gas such as carbon dioxide in addition to 0-4 mass% liquefied gas with respect to 100 mass% of stock solution A product (Patent Document 5) is known. On the other hand, by including a stock solution containing an active ingredient aqueous solution, a normal butane and a propellant consisting of only carbon dioxide gas, the flammability is low, and the low-temperature foaming property is superior to that using liquefied petroleum gas, and the high-temperature safety A good foamable aerosol composition (Patent Document 6) is known, but normal butane is expensive.
さらに、炭酸ガスと共に炭化水素油を使用した血行促進作用を目的としたエアゾール剤として、二酸化炭素とイソペンタン、n−ペンタン等の特定の炭化水素を用いて、フォーム剤の泡持続性を改善した発泡性皮膚血行促進剤(特許文献7)が知られているが、低温下での泡もちや耐圧容器の内圧を低下させた場合の作用効果については記載されていない。 Furthermore, as an aerosol agent for the purpose of promoting blood circulation using hydrocarbon oil together with carbon dioxide gas, foaming with improved foam persistence by using specific hydrocarbons such as carbon dioxide and isopentane, n-pentane, etc. Although a skin dermal circulation promoter (Patent Document 7) is known, there is no description about the action and effect when the foam pressure at low temperature and the internal pressure of the pressure vessel are lowered.
本発明の課題は、容器内の内圧が低圧でありながら、低温時においても良好な泡沫を保ち、二酸化炭素を皮膚上に長時間作用させて、十分な血行促進効果が得られる泡沫状皮膚塗布剤を提供することにある。 An object of the present invention is to provide a foamy skin application that maintains a good foam even at low temperatures while the internal pressure in the container is low and allows carbon dioxide to act on the skin for a long time, thereby obtaining a sufficient blood circulation promoting effect. It is to provide an agent.
そこで本発明者は、二酸化炭素を皮膚上に長時間滞留させて良好な血行促進作用を賦与できる塗布剤を得るべく種々検討したところ、35℃における蒸気圧が0.1MPa以上0.5MPa未満の飽和炭化水素を主成分とした炭素数3〜5の炭化水素混合物を含有させることにより、二酸化炭素を高濃度で溶存させることができ、皮膚上に吐出したとき、二酸化炭素を高濃度に含む泡沫が長時間皮膚上に保持され、低温においても良好な泡沫が形成され、さらに良好な血行促進作用を有する泡沫状皮膚塗布剤が得られることを見出した。 Therefore, the present inventor has made various studies to obtain a coating agent capable of imparting a good blood circulation promoting action by retaining carbon dioxide on the skin for a long time, and the vapor pressure at 35 ° C. is 0.1 MPa or more and less than 0.5 MPa. By containing a hydrocarbon mixture having 3 to 5 carbon atoms mainly composed of saturated hydrocarbons, carbon dioxide can be dissolved at a high concentration, and when discharged onto the skin, a foam containing carbon dioxide at a high concentration Has been found to be retained on the skin for a long time, good foam is formed even at a low temperature, and a foamy skin coating agent having a good blood circulation promoting action is obtained.
すなわち、本発明は、次の成分(A)、(B)及び(C)、
(A)二酸化炭素
(B)炭素数が3〜5の炭化水素から選ばれる混合物であり、前記混合物中に35℃における蒸気圧0.1MPa以上0.5MPa未満の飽和炭化水素が70〜100質量%含まれる炭化水素混合物 0.1〜3質量%
(C)界面活性剤 0.1〜25質量%
を含有し、(A)と(B)との質量比が35:65〜95:5である液体及び気体を含む組成物を耐圧容器内に内圧が25℃で0.7MPa未満となるように封入してなる泡沫状皮膚塗布剤を提供するものである。
That is, the present invention includes the following components (A), (B) and (C),
(A) Carbon dioxide (B) A mixture selected from hydrocarbons having 3 to 5 carbon atoms, and 70 to 100 mass of saturated hydrocarbons having a vapor pressure of 0.1 MPa or more and less than 0.5 MPa at 35 ° C. in the mixture. % Hydrocarbon mixture 0.1 to 3% by mass
(C) Surfactant 0.1-25% by mass
And a composition containing a liquid and a gas having a mass ratio of (A) and (B) of 35:65 to 95: 5 is placed in a pressure vessel so that the internal pressure is less than 0.7 MPa at 25 ° C The present invention provides a foamy skin coating agent that is encapsulated.
本発明の泡沫状皮膚塗布剤は、容器内圧が0.7MPa未満という低圧でありながら、皮膚上に吐出したとき、二酸化炭素を高濃度に含む泡沫が長時間皮膚上に保持され、その泡沫を皮膚上に拡げることにより、皮膚の優れた血行促進効果が得られる。また、吐出した泡沫が低温下でも安定であるため、皮膚上でのマッサージ等を容易に行うことができる。 The foam-like skin coating agent of the present invention has a low internal pressure of less than 0.7 MPa, and when discharged onto the skin, the foam containing carbon dioxide at a high concentration is retained on the skin for a long time, and the foam is removed. By spreading on the skin, an excellent blood circulation promoting effect of the skin can be obtained. Further, since the discharged foam is stable even at a low temperature, massage on the skin can be easily performed.
本発明の泡沫状皮膚塗布剤は、耐圧容器内に前記成分(A)、(B)及び(C)を含有する液体及び気体を含む組成物が封入されてなるものである。 The foamy skin coating agent of the present invention is obtained by enclosing a composition containing a liquid and a gas containing the components (A), (B) and (C) in a pressure resistant container.
成分(A)の二酸化炭素は、気体として耐圧容器内に封入され、本発明の泡沫状皮膚塗布剤の噴射剤として機能するだけではなく、その一部は耐圧容器内の液体中に溶解しており、これを皮膚に適用したとき発泡する。そして、皮膚上において、泡中の気体状の二酸化炭素及び液体部分に溶存している二酸化炭素は、皮膚の血行を促進する作用を有する。従って、容器内において、二酸化炭素は前記液体中に高濃度存在するようにするのが好ましい。前記耐圧容器内における二酸化炭素の液体中への溶存量は、皮膚に塗布した際に十分な効果を付与できる点から、500〜25,000ppm、さらに1,000〜20,000ppm、特に5,000〜18,000ppmとするのが好ましい。 Component (A), carbon dioxide, is enclosed in a pressure vessel as a gas and functions not only as a propellant for the foamy skin coating composition of the present invention, but also partly dissolved in the liquid in the pressure vessel. And foam when applied to the skin. On the skin, gaseous carbon dioxide in the foam and carbon dioxide dissolved in the liquid portion have an action of promoting blood circulation in the skin. Therefore, it is preferable that carbon dioxide is present at a high concentration in the liquid in the container. The amount of carbon dioxide dissolved in the liquid in the pressure vessel is 500 to 25,000 ppm, more preferably 1,000 to 20,000 ppm, and particularly 5,000, in that a sufficient effect can be imparted when applied to the skin. It is preferable to set it to -18,000 ppm.
成分(B)の炭化水素混合物は、本発明の泡沫状皮膚塗布剤を皮膚に適用するとき、二酸化炭素とともに発泡し、二酸化炭素を高濃度に含有した泡沫を形成する作用を有する。前記炭化水素混合物中は、本発明品の耐圧容器内圧において25℃で0.7MPa未満を維持し、かつ吐出した際に良好な泡質と血行促進効果を両立するために、35℃における蒸気圧が0.1MPa以上0.5MPa未満の飽和炭化水素が70〜100質量%であることが重要であり、特に使用時の効果を高める点から、80〜100質量%が好ましく、さらにまた90〜100質量%、特に95〜100質量%であるのが好ましい。当該35℃における蒸気圧が0.1MPa以上0.5MPa未満の飽和炭化水素としては、炭素数4のイソブタン(0.46MPa)、ノルマルブタン(0.33MPa);炭素数5のネオペンタン(0.23MPa)、イソペンタン(0.13MPa)などが挙げられる。このうちイソブタン、ノルマルブタンが低温における泡が良好となり好ましく、経済性の面からノルマルブタンを使用する際にはイソブタンを併用することが特に好ましい。また、炭素5の炭化水素としては、イソペンタンが好ましい。 When the foamy skin coating composition of the present invention is applied to the skin, the hydrocarbon mixture of component (B) has an action of foaming together with carbon dioxide to form a foam containing carbon dioxide at a high concentration. In the hydrocarbon mixture, the pressure inside the pressure vessel of the present invention is maintained at less than 0.7 MPa at 25 ° C., and in order to achieve both good foam quality and blood circulation promoting effect when discharged, the vapor pressure at 35 ° C. It is important that the saturated hydrocarbon of 0.1 MPa or more and less than 0.5 MPa is 70 to 100% by mass, particularly 80 to 100% by mass from the viewpoint of enhancing the effect at the time of use, and further 90 to 100%. It is preferable that it is mass%, especially 95-100 mass%. The saturated hydrocarbon having a vapor pressure at 35 ° C. of 0.1 MPa or more and less than 0.5 MPa includes isobutane having 4 carbon atoms (0.46 MPa), normal butane (0.33 MPa); neopentane having 5 carbon atoms (0.23 MPa). ), Isopentane (0.13 MPa) and the like. Of these, isobutane and normal butane are preferable because foams at low temperatures are good, and it is particularly preferable to use isobutane in combination when using normal butane from the economical aspect. Moreover, as a hydrocarbon of carbon 5, isopentane is preferable.
さらに、前記耐圧容器内の液体中に二酸化炭素を溶存させるためには、炭化水素混合物の蒸気圧を低くすることが好ましく、炭素数4のイソブタン、ノルマルブタンに加えて、イソペンタンを用いることも好ましい。イソペンタンを併用する場合、耐圧容器内の全組成物中に0.1〜1.8質量%であることが好ましく、さらに0.1〜1.2質量%、特に0.1〜0.9質量%が血行促進効果の点から好ましい。 Further, in order to dissolve carbon dioxide in the liquid in the pressure vessel, it is preferable to lower the vapor pressure of the hydrocarbon mixture, and it is also preferable to use isopentane in addition to the isobutane having 4 carbon atoms and normal butane. . When isopentane is used in combination, the total composition in the pressure vessel is preferably 0.1 to 1.8% by mass, more preferably 0.1 to 1.2% by mass, especially 0.1 to 0.9% by mass. % Is preferable from the viewpoint of blood circulation promoting effect.
また、35℃における蒸気圧が0.5MPaより大きい飽和炭化水素としては、プロパン(1.25MPa)などが挙げられる。通常の場合、液化石油ガス(LPG)はプロパン及びブタンの混合物であって、目的に応じてこれらの比率を調整した混合ガスとして流通している。本発明においては、耐圧容器内を低圧下にし、かつ二酸化炭素を高濃度に含有し、長時間皮膚上に保持できる泡沫を得るために、35℃における蒸気圧が高い炭化水素の含有量が少ないことが好ましい。プロパンは実質的に配合しないことが好ましいが、工業的な入手性を考慮すると、LPGに含まれるノルマルブタン及びイソブタン:プロパン(質量比)は、70〜100:0〜30であることが好ましく、さらに90〜99.9:0.1〜10、特に97〜99.5:0.5〜3であることが好ましい。
炭素数3〜5の炭化水素混合物の好ましい形態としては、炭素数5の炭化水素をB1、炭素数4の炭化水素をB2、炭素数3の炭化水素をB3とした場合、B1:B2:B3(質量比)が0〜75:15〜100:0〜30の組成、さらに0〜75:20〜99:0.1〜3の組成、特に0〜50:49〜99:0.5〜1の組成の炭化水素混合物が好ましい。また、B2の含有量は、耐圧容器内の全組成物中に0.1〜3質量%、さらに0.1〜2質量%、特に0.3〜1.5質量%含有するのが好ましい。
Examples of the saturated hydrocarbon having a vapor pressure at 35 ° C. higher than 0.5 MPa include propane (1.25 MPa). Usually, liquefied petroleum gas (LPG) is a mixture of propane and butane, and circulates as a mixed gas in which these ratios are adjusted according to the purpose. In the present invention, the content of hydrocarbons having a high vapor pressure at 35 ° C. is low in order to obtain a foam that can be kept on the skin for a long time by containing the carbon dioxide at a high concentration in a pressure vessel and under a low pressure. It is preferable. Propane is preferably substantially not blended, but considering industrial availability, normal butane and isobutane: propane (mass ratio) contained in LPG are preferably 70 to 100: 0 to 30, Furthermore, it is preferable that it is 90-99.9: 0.1-10, especially 97-99.5: 0.5-3.
As a preferable form of the hydrocarbon mixture having 3 to 5 carbon atoms, when B1 is a hydrocarbon having 5 carbon atoms, B2 is a hydrocarbon having 4 carbon atoms, and B3 is a hydrocarbon having 3 carbon atoms, B1: B2: B3 (Mass ratio) is a composition of 0 to 75:15 to 100: 0 to 30, a composition of 0 to 75:20 to 99: 0.1 to 3, particularly 0 to 50:49 to 99: 0.5 to 1. A hydrocarbon mixture of the following composition is preferred: The content of B2 is preferably 0.1 to 3% by mass, more preferably 0.1 to 2% by mass, and particularly preferably 0.3 to 1.5% by mass in the entire composition in the pressure vessel.
本発明において当該成分(B)の含有量は、耐圧容器内の全組成物中0.1〜3質量%であるが、良好な泡沫及び血行促進効果の両者を満足させるうえで、0.2〜2.5質量%が好ましく、特に0.5〜2質量%であるのが好ましい。 In this invention, although content of the said component (B) is 0.1-3 mass% in all the compositions in a pressure-resistant container, when satisfying both the favorable foam and the blood circulation promotion effect, it is 0.2. -2.5 mass% is preferable, and it is especially preferable that it is 0.5-2 mass%.
また、耐圧容器内に封入する当該成分(A)と(B)との質量比(A:B)は、良好な泡沫及び血行促進効果の両者を満足させるうえで、35:65〜95:5であることが重要であり、血行促進効果の点から38:62〜95:5、さらに45:55〜90:10、特に50:50〜85:15であるのが好ましい。 In addition, the mass ratio (A: B) of the components (A) and (B) enclosed in the pressure resistant container is 35:65 to 95: 5 in order to satisfy both good foam and blood circulation promoting effect. It is important that it is 38:62 to 95: 5, further 45:55 to 90:10, particularly 50:50 to 85:15 from the viewpoint of blood circulation promoting effect.
本発明において、成分(C)の界面活性剤は液体中に含まれ、成分(B)を分散あるいは乳化させるものであり、本発明の泡沫状皮膚塗布剤を皮膚に適用する際に泡の安定性を向上させる。界面活性剤としては、非イオン性界面活性剤、アニオン性界面活性剤、カチオン性界面活性剤、両性界面活性剤などの中から、単独で又は適宜2種以上を組み合わせて使用することができる。 In the present invention, the component (C) surfactant is contained in the liquid, and the component (B) is dispersed or emulsified. When the foamy skin coating composition of the present invention is applied to the skin, the stability of the foam is improved. Improve sexiness. As the surfactant, a nonionic surfactant, an anionic surfactant, a cationic surfactant, an amphoteric surfactant, or the like can be used alone or in appropriate combination of two or more.
非イオン性界面活性剤としては、プロピレングリコール脂肪酸エステル、グリセリン脂肪酸エステル、ポリオキシエチレングリセリン脂肪酸エステル、ソルビタン脂肪酸エステル、ポリオキシエチレンソルビタン脂肪酸エステル、ポリオキシエチレンソルビトール脂肪酸エステル、ポリエチレングリコール脂肪酸エステル、ポリグリセリン脂肪酸エステル、ショ糖脂肪酸エステル、ペンタエリスリトール脂肪酸エステル、ポリオキシエチレンアルキルエーテル、ポリオキシエチレンポリオキシプロピレンアルキルエーテル、ポリオキシエチレンアルキルフェニルエーテル、ポリオキシエチレンポリオキシプロピレングリコール、ポリオキシエチレンヒマシ油、ポリオキシエチレン硬化ヒマシ油、ポリオキシエチレンアルキルアミン、ポリオキシエチレン脂肪酸アミド、アルキルアルカノールアミド、アルキルグリセリルエーテル、アルキルポリグルコシド、アミノ酸エステル、ポリエーテル変性シリコーン等の変性シリコーン、アルキルポリサッカライドなどが挙げられる。 Nonionic surfactants include propylene glycol fatty acid ester, glycerin fatty acid ester, polyoxyethylene glycerin fatty acid ester, sorbitan fatty acid ester, polyoxyethylene sorbitan fatty acid ester, polyoxyethylene sorbitol fatty acid ester, polyethylene glycol fatty acid ester, polyglycerin. Fatty acid ester, sucrose fatty acid ester, pentaerythritol fatty acid ester, polyoxyethylene alkyl ether, polyoxyethylene polyoxypropylene alkyl ether, polyoxyethylene alkylphenyl ether, polyoxyethylene polyoxypropylene glycol, polyoxyethylene castor oil, poly Oxyethylene hydrogenated castor oil, polyoxyethylene alkylamine, polyoxy Ethylene fatty acid amides, alkyl alkanolamide, an alkyl glyceryl ether, alkyl polyglucoside, amino acid esters, modified silicones such as polyether-modified silicone, and alkyl polysaccharides, and the like.
アニオン性界面活性剤としては、アルキル硫酸塩、ポリオキシエチレンアルキルエーテル硫酸塩、ポリオキシエチレンアルキルエーテル酢酸塩、N−アシルアミノ酸塩、アルキルリン酸塩、ポリオキシエチレンアルキルエーテルリン酸塩、脂肪酸塩、N−アシルタウリン塩、アルキルスルホン酸塩、アルキルスルホ酢酸塩、アルキルスルホコハク酸塩、ポリオキシエチレンアルキルスルホコハク酸塩などが挙げられる。 Anionic surfactants include alkyl sulfates, polyoxyethylene alkyl ether sulfates, polyoxyethylene alkyl ether acetates, N-acyl amino acid salts, alkyl phosphates, polyoxyethylene alkyl ether phosphates, fatty acid salts N-acyl taurine salts, alkyl sulfonates, alkyl sulfoacetates, alkyl sulfosuccinates, polyoxyethylene alkyl sulfosuccinates, and the like.
カチオン性界面活性剤としては、アルキルトリメチルアンモニウム塩、ジアルキルジメチルアンモニウム塩、アルコキシプロピルトリメチルアンモニウム塩、アルキルベンジルジメチルアンモニウム塩のようなアンモニウム塩やアミン塩が挙げられる。これらの成分の添加により、起泡性のほかに、殺菌作用や、トリートメント効果、帯電防止効果なども得られる。 Examples of the cationic surfactant include ammonium salts and amine salts such as alkyltrimethylammonium salts, dialkyldimethylammonium salts, alkoxypropyltrimethylammonium salts, and alkylbenzyldimethylammonium salts. By adding these components, in addition to foaming properties, bactericidal action, treatment effect, antistatic effect and the like can be obtained.
両性界面活性剤としては、アルキルジメチルアミンオキサイド、アルキルジメチルアミノ酢酸ベタイン、アルキルアミドプロピルベタイン、アルキルスルホベタイン、アルキルヒドロキシスルホベタイン、アルキルカルボキシメチルヒドロキシエチルイミダゾリニウムベタインなどを起泡力増強の目的などで必要によって添加できる。 Amphoteric surfactants include alkyldimethylamine oxide, alkyldimethylaminoacetic acid betaine, alkylamidopropylbetaine, alkylsulfobetaine, alkylhydroxysulfobetaine, alkylcarboxymethylhydroxyethylimidazolinium betaine, etc. Can be added if necessary.
これらのうち、非イオン性界面活性剤及びアニオン性界面活性剤から選ばれる1種又は2種以上を用いるのが好ましい。非イオン性界面活性剤としては、グリセリン脂肪酸エステル、ポリオキシエチレングリセリン脂肪酸エステル、ソルビタン脂肪酸エステル、ポリオキシエチレンソルビタン脂肪酸エステル、ポリオキシエチレンソルビトール脂肪酸エステル、ポリエチレングリコール脂肪酸エステル、ポリグリセリン脂肪酸エステル、ショ糖脂肪酸エステル、ポリオキシエチレンアルキルエーテル、ポリオキシエチレン硬化ヒマシ油、ポリオキシエチレンアルキルアミン、ポリオキシエチレン脂肪酸アミド、アルキルアルカノールアミド、アルキルグリセリルエーテル、アルキルポリグルコシド、アミノ酸エステル等が好ましい。また、アニオン性界面活性剤としては、ポリオキシエチレンアルキルエーテル硫酸塩、ポリオキシエチレンアルキルエーテル酢酸塩、N−アシルアミノ酸塩、アルキルリン酸塩、脂肪酸塩などが好ましい。これらの界面活性剤のうち、皮膚上での泡の安定性の点から、炭素数8〜16のアルキル鎖を有するものが好ましい。 Among these, it is preferable to use one or more selected from nonionic surfactants and anionic surfactants. Nonionic surfactants include glycerin fatty acid ester, polyoxyethylene glycerin fatty acid ester, sorbitan fatty acid ester, polyoxyethylene sorbitan fatty acid ester, polyoxyethylene sorbitol fatty acid ester, polyethylene glycol fatty acid ester, polyglycerin fatty acid ester, sucrose Fatty acid esters, polyoxyethylene alkyl ethers, polyoxyethylene hydrogenated castor oil, polyoxyethylene alkyl amines, polyoxyethylene fatty acid amides, alkyl alkanol amides, alkyl glyceryl ethers, alkyl polyglucosides, amino acid esters and the like are preferred. As the anionic surfactant, polyoxyethylene alkyl ether sulfate, polyoxyethylene alkyl ether acetate, N-acyl amino acid salt, alkyl phosphate, fatty acid salt and the like are preferable. Among these surfactants, those having an alkyl chain having 8 to 16 carbon atoms are preferable from the viewpoint of the stability of foam on the skin.
これらの界面活性剤は、皮膚上での泡の安定性及び泡感触の点からその量が多い方が好ましく、一方で皮膚への刺激等の面から多量の使用は刺激などの問題から容器内の全組成物全量中に0.1〜25質量%の範囲が好ましい。特に、洗浄剤やマッサージ剤などの洗い流す系では、2.0〜20質量%、さらに4.0〜16質量%含有するのが好ましい。また、乳液や化粧水などそのまま皮膚上に残る系では、0.1〜10質量%、さらに0.2〜6質量%、特に0.3〜3質量%が好ましい。 These surfactants are preferably used in a large amount from the viewpoint of foam stability and foam feel on the skin. On the other hand, use of a large amount from the viewpoint of irritation to the skin causes problems such as irritation. The range of 0.1 to 25% by mass is preferable in the total amount of all the compositions. In particular, it is preferable to contain 2.0 to 20% by mass, and more preferably 4.0 to 16% by mass in a system for washing away a cleaning agent or a massage agent. Moreover, in the system which remains on the skin as it is, such as milky lotion and lotion, 0.1 to 10% by mass, more preferably 0.2 to 6% by mass, and particularly preferably 0.3 to 3% by mass.
二酸化炭素はアルカリ側では二酸化炭素としてではなく、炭酸塩となってしまい、血行促進効果を奏さない。従って、前記組成物のpHは、二酸化炭素を高濃度溶存させておくことにより、優れた血行促進効果を得る点から、2.5〜7、特に4.5〜6.5が好ましい。これらの範囲にpHを調整する際のpH調整剤として、例えば、クエン酸、リンゴ酸、酒石酸等の有機酸又はこれらの塩、あるいはリン酸又はそれらの塩などが利用できる。 Carbon dioxide is not converted as carbon dioxide on the alkali side, but becomes carbonate and does not have a blood circulation promoting effect. Accordingly, the pH of the composition is preferably 2.5 to 7, particularly 4.5 to 6.5, from the viewpoint of obtaining an excellent blood circulation promoting effect by dissolving carbon dioxide at a high concentration. As a pH adjuster for adjusting the pH within these ranges, for example, organic acids such as citric acid, malic acid and tartaric acid, or salts thereof, or phosphoric acid or salts thereof can be used.
本発明の泡沫状皮膚塗布剤において、耐圧容器に封入する液体の粘度は、前記成分(B)の分散あるいは乳化状態を安定に保つため、及び皮膚上に塗布した泡沫中の二酸化炭素を保持し良好な血行促進効果を満足させるために、100〜500,000mPa・s、さらに200〜200,000mPa・s、特に300〜50,000mPa・sであることが好ましい。特に、耐圧容器内で前記成分(B)が分離して良好な泡沫が得られなくなることを防止するためには、100mPa・s以上とすることが好ましい。一方で、工業的に安定な製造を考慮すると、前記耐圧容器が単室構造のエアゾール容器である場合は200〜2,000mPa・sであることが好ましく、二重構造のエアゾール容器である場合は2,000〜30,000mPa・sであることが好ましい。粘度調整剤としては、カルボキシビニルポリマー、アクリル酸・メタクリル酸アルキル共重合体、アクリル酸・アクリル酸アルキル共重合体、アクリル酸アルキル共重合体、ポリアクリル酸ナトリウム、ポリビニルアルコール、ポリビニルピロリドン、ポリエチレングリコール、高分子シリコーン等の合成高分子;メチルセルロース、エチルセルロース、ヒドロキシエチルセルロース、ヒドロキシプロピルセルロース、ヒドロキシプロピルメチルセルロース、カルボキシメチルセルロース、カチオン化セルロース等のセルロース系高分子、可溶性デンプン、カルボキシメチルデンプン、デキストリン脂肪酸エステル、アルギン酸プロピレングリコール、ヒドロキシプロピル化グァーガム等の半合成高分子;アルギン酸ナトリウム、カラギーナン、寒天、グァーガム、クインスシードガム、マンナン、デキストリン、デンプン、ローカストビーンガム、アラビアガム、トラガントガム、ペクチン、キチン、キトサン、アルブミン、カゼイン、コラーゲン、カードラン、キサンタンガム、デキストラン、プルラン、サクシノグルカン等の天然高分子が挙げられる。これらのうち、泡沫の形成性、皮膚に塗布した際の泡もちの点からカルボキシビニルポリマー、アクリル酸・メタクリル酸アルキル共重合体、アクリル酸・アクリル酸アルキル共重合体、アクリル酸アルキル共重合体、ポリアクリル酸ナトリウム等の(メタ)アクリル酸系高分子の1種又は2種以上を容器内組成物全量中に0.01〜3質量%用いることが好ましい。さらに、本発明の泡沫状皮膚塗布剤は、泡沫中の高濃度な二酸化炭素を皮膚上に保持する点から、(メタ)アクリル酸系高分子とその他の粘度調整用の増粘性高分子を併用することが好ましい。これら(メタ)アクリル酸系高分子を含む粘度調整剤の合計量は、0.02〜5質量%が好ましい。 In the foamy skin coating agent of the present invention, the viscosity of the liquid sealed in the pressure resistant container holds the carbon dioxide in the foam applied on the skin in order to keep the component (B) dispersed or emulsified stably. In order to satisfy a good blood circulation promoting effect, it is preferably 100 to 500,000 mPa · s, more preferably 200 to 200,000 mPa · s, and particularly preferably 300 to 50,000 mPa · s. In particular, in order to prevent the component (B) from separating in the pressure resistant container and preventing good foam from being obtained, the pressure is preferably set to 100 mPa · s or more. On the other hand, in view of industrially stable production, when the pressure vessel is an aerosol container having a single chamber structure, it is preferably 200 to 2,000 mPa · s, and when it is a double structure aerosol container, It is preferably 2,000 to 30,000 mPa · s. Viscosity modifiers include carboxyvinyl polymer, acrylic acid / alkyl methacrylate copolymer, acrylic acid / alkyl acrylate copolymer, alkyl acrylate copolymer, sodium polyacrylate, polyvinyl alcohol, polyvinyl pyrrolidone, polyethylene glycol , Synthetic polymers such as polymeric silicones; cellulose polymers such as methylcellulose, ethylcellulose, hydroxyethylcellulose, hydroxypropylcellulose, hydroxypropylmethylcellulose, carboxymethylcellulose, cationized cellulose, soluble starch, carboxymethylstarch, dextrin fatty acid ester, alginic acid Semi-synthetic polymers such as propylene glycol and hydroxypropylated guar gum; sodium alginate, carragina , Agar, guar gum, quince seed gum, mannan, dextrin, starch, locust bean gum, gum arabic, tragacanth gum, pectin, chitin, chitosan, albumin, casein, collagen, curdlan, xanthan gum, dextran, pullulan, saxino glucan, etc. Examples include natural polymers. Among these, carboxyvinyl polymer, acrylic acid / alkyl methacrylate copolymer, acrylic acid / alkyl acrylate copolymer, alkyl acrylate copolymer in terms of foam formation and foaminess when applied to the skin It is preferable to use 0.01 to 3% by mass of one or more of (meth) acrylic acid polymers such as sodium polyacrylate in the total amount of the composition in the container. Furthermore, the foamy skin coating agent of the present invention uses a (meth) acrylic acid polymer and other viscosity-adjusting polymer for viscosity adjustment in order to retain high-concentration carbon dioxide in the foam on the skin. It is preferable to do. The total amount of the viscosity modifier containing these (meth) acrylic acid polymers is preferably 0.02 to 5% by mass.
本発明の泡沫状皮膚塗布剤には、さらに、水、アルコール類、油剤、保湿剤、香料、植物エキス類、殺菌・防腐剤、キレート剤等を含有させることができる。 The foamy skin coating composition of the present invention can further contain water, alcohols, oils, moisturizers, fragrances, plant extracts, bactericides / preservatives, chelating agents and the like.
本発明の泡沫状皮膚塗布剤は、前記成分(A)、(B)、(C)及びその他の成分を耐圧容器に封入することにより製造される。例えば、耐圧容器内に、成分(C)を含む液体を充填した後、成分(A)二酸化炭素及び成分(B)炭化水素混合物を封入する。このとき、必要に応じて、他の噴射ガスを充填することも可能である。 The foamy skin coating agent of the present invention is produced by enclosing the components (A), (B), (C) and other components in a pressure resistant container. For example, after the liquid containing the component (C) is filled in the pressure vessel, the component (A) carbon dioxide and the component (B) hydrocarbon mixture are sealed. At this time, it is also possible to fill with other injection gas as needed.
耐圧容器としては、内容液を泡状にして吐出できる形態であればよく、例えば、通常のアルミニウム、ブリキなどの金属製の単室構造の缶が使用でき、また、容器材質としてアセタール系樹脂、ポリカーボネート系の樹脂等の合成樹脂容器、ガラスなども圧力限界内であれば利用できる。特に工業的に1回で高圧の二酸化炭素を封入する場合には、アルミニウムの容器肉厚を調整したインパクト缶などが好ましい。また、原液の粘度によっては、耐圧容器内に内袋をもつ二重容器も利用できる。二重容器の場合、本発明のエアゾール組成物は内袋の中に充填され、耐圧容器と内袋との間に別に噴射ガスが充填される。この噴射ガスは、一般的にエアゾールにて用いられるガスであれば使用することができる。 The pressure vessel only needs to be in a form that allows the content liquid to be discharged in the form of a foam, for example, a normal single-chamber can such as aluminum or tin can be used, and the container material is an acetal resin, A synthetic resin container such as a polycarbonate-based resin, glass, or the like can be used as long as it is within the pressure limit. In particular, when high-pressure carbon dioxide is sealed once industrially, an impact can having an aluminum container thickness adjusted is preferable. Further, depending on the viscosity of the stock solution, a double container having an inner bag in a pressure resistant container can be used. In the case of a double container, the aerosol composition of the present invention is filled in the inner bag, and the injection gas is filled separately between the pressure-resistant container and the inner bag. This propellant gas can be used as long as it is a gas generally used in aerosol.
耐圧容器内の圧力は、25℃において0.7MPa未満であるが、良好な泡沫を得る点から0.4MPa以上0.7MPa未満、さらに0.45MPa以上0.7MPa未満、特に0.5〜0.65MPaであることが好ましい。 The pressure in the pressure vessel is less than 0.7 MPa at 25 ° C., but 0.4 MPa or more and less than 0.7 MPa, further 0.45 MPa or more and less than 0.7 MPa, particularly 0.5 to 0 from the point of obtaining good foam. It is preferably .65 MPa.
本発明の泡沫状皮膚塗布剤は皮膚上に適用し、生じた泡を皮膚上に拡げることにより使用するのが好ましい。ここで皮膚上への適用手段としては、所望の皮膚上に直接吐出して、その場で泡を形成させてもよいが、手に吐出して泡を形成させ、その泡を所望の皮膚上に塗布してもよい。本発明の泡沫状塗布剤により形成された泡は長時間安定であり、皮膚上に拡げる操作、軽いマッサージ等を行っても安定であることから、高濃度の二酸化炭素が皮膚に長時間作用し、優れた血行促進効果を奏する。 The foamy skin coating agent of the present invention is preferably used by applying on the skin and spreading the foam generated on the skin. Here, as an application means on the skin, it may be directly discharged onto the desired skin to form bubbles on the spot, but it is discharged onto the hand to form bubbles, and the bubbles are formed on the desired skin. You may apply to. The foam formed by the foamy coating composition of the present invention is stable for a long time, and is stable even after performing an operation to spread on the skin, a light massage, etc., so high concentration carbon dioxide acts on the skin for a long time. Excellent blood circulation promoting effect.
従って、本発明の泡沫状皮膚塗布剤は化粧料や皮膚外用剤として使用でき、皮膚洗浄剤、毛髪洗浄剤、メイク落とし剤、マッサージ剤、パック・マスク剤、クリーム・乳液・化粧水・ジェル・美容液などのスキンケア剤、毛髪コンディショニング剤、メーキャップ剤、芳香化粧料、デオドラント剤、脱色剤、脱毛・除毛剤、養毛・育毛料、また褥創などの予防や治療用の塗布剤・清拭剤、むくみや浮腫に対する予防や治療用の塗布剤・清拭剤等として使用できる。これらの用途に応じて、それらの有効成分を配合できる。例えば化粧料(洗浄料を含む)に対しては、前記保湿剤の他、サンスクリーン剤(UV−A及び又はUV−Bの吸収剤・反射剤)、美白剤、痩身剤、消臭剤、制汗剤、収れん剤、清涼剤、シワ・くすみ防止剤としての各種合成ビタミン、天然ビタミン及びそれらの誘導体、アミノ酸及びその誘導体などが使用できる。養毛・育毛料の有効成分としては、各種血流促進剤や、植物抽出物などが使用できる。マッサージ剤や清拭剤としては、各種抗炎症剤や局所麻酔剤、消炎鎮痛剤、抗ヒスタミン剤、殺菌剤などが添加できる。 Therefore, the foamy skin coating agent of the present invention can be used as a cosmetic or a skin external preparation, and is a skin cleanser, hair cleanser, makeup remover, massage agent, pack / mask agent, cream / milky lotion / skin lotion / gel / Skin care agents such as beauty serums, hair conditioning agents, makeup agents, aromatic cosmetics, deodorants, depigmenting agents, hair removal / hair removal agents, hair restoration / hair growth agents, and coating / cleaning agents for prevention and treatment of wounds, etc. It can be used as a wiping agent, a coating agent / wiping agent for prevention and treatment of swelling and edema. Depending on these applications, those active ingredients can be blended. For example, for cosmetics (including cleaning agents), in addition to the moisturizing agent, sunscreen agents (UV-A and / or UV-B absorbers / reflectors), whitening agents, slimming agents, deodorants, Various synthetic vitamins as natural antiperspirants, astringents, refreshing agents, wrinkle / dullness inhibitors, natural vitamins and derivatives thereof, amino acids and derivatives thereof can be used. Various active blood flow promoters, plant extracts, and the like can be used as active ingredients for hair nourishing and hair restoration. As a massage agent or a wiping agent, various anti-inflammatory agents, local anesthetics, anti-inflammatory analgesics, antihistamines, bactericides, and the like can be added.
実施例1〜8及び比較例1〜4
表1記載の処方により、A及びB以外を混合して原液(液体成分)を調整し、耐圧容器に充填した後、炭化水素混合物(B)、二酸化炭素(A)の順に封入してエアゾール組成物を得た。得られたエアゾール組成物を25℃で1週間保存後に、泡安定性及び皮膚血流を評価した。このとき、全ての組成物において、pHは7未満であった。粘度は、BM型粘度計(東機産業(株))を用いて、測定温度を25℃とし、ロータNo.2、30r/min、1分間の測定条件により測定できる。
Examples 1-8 and Comparative Examples 1-4
According to the formulation shown in Table 1, after mixing other than A and B to prepare a stock solution (liquid component) and filling a pressure vessel, it is sealed in the order of hydrocarbon mixture (B) and carbon dioxide (A) to form an aerosol composition. I got a thing. After the obtained aerosol composition was stored at 25 ° C. for 1 week, foam stability and skin blood flow were evaluated. At this time, pH was less than 7 in all the compositions. The viscosity was measured using a BM viscometer (Toki Sangyo Co., Ltd.) at a measurement temperature of 25 ° C. 2, 30 r / min, can be measured under measurement conditions of 1 minute.
(測定方法)
(1)二酸化炭素濃度
25℃雰囲気下で泡を噴射し、二酸化炭素濃度を測定した。炭酸ガス測定器は、Orion社製 二酸化炭素電極モデル9502BNを用いた。
(2)泡安定性
皮膚上に3cmφとなるように泡を噴射し、2分間保持して評価した。
○:泡を形成し、2分間保つ
△:泡を形成するが、だれてしまう
×:泡を形成しない
(3)皮膚血流
前腕部に3cmφとなるように泡を噴射し、2分間保持後に泡を拭き取って、皮膚の状態(皮膚紅潮)を目視で観察した。
◎:はっきりと紅潮を認める
○:紅潮を認める
△:微かに紅潮を認める
×:紅潮を認めない
(Measuring method)
(1) Carbon dioxide concentration Bubbles were jetted under an atmosphere of 25 ° C., and the carbon dioxide concentration was measured. As a carbon dioxide measuring device, a carbon dioxide electrode model 9502BN manufactured by Orion was used.
(2) Foam stability The foam was sprayed onto the skin so as to have a diameter of 3 cm and held for 2 minutes for evaluation.
○: Bubbles are formed and held for 2 minutes. Δ: Bubbles are formed, but they are spilled. ×: Bubbles are not formed. The foam was wiped off and the skin condition (skin flush) was visually observed.
◎: Flushing is clearly recognized ○: Flushing is recognized △: Flushing is slightly recognized ×: Flushing is not recognized
その結果、本発明の実施例1〜8は、高濃度で二酸化炭素が溶存しており、また25℃での泡安定性が良好で、皮膚の紅潮が認められた。なお、皮膚血流に関しては、(3)同様に、前腕部に泡を噴射し拭き取り後、5秒後にリアルタイム血流画像化装置FLPI(Moor Instruments製、moorFLPI)を用いて、皮膚組織血流量を測定して無塗布安静時の血流量と比較したところ、皮膚紅潮の認められたものは血流量の増加がしていた。
表1において、成分(A)の比率が30質量%以下の場合(比較例1)に、皮膚紅潮は認められず、血流促進作用もほとんど認められなかった。また、成分(A)の比率が100質量%、すなわち成分(B)が含有されない場合(比較例2)は、皮膚紅潮ははっきりと認められ、血流促進作用も顕著に増加するが、泡はだれてしまい、泡の安定性が悪かった。さらに、成分(B)中に含まれる35℃における蒸気圧0.1MPa以上0.5MPa未満の飽和炭化水素の割合が70質量%より小さい炭化水素混合物(比較例3)を用いると、内圧が0.7MPaを超えてしまった。また、粘度が低い比較例4の組成液は分離したため、評価は行わなかった。
As a result, in Examples 1 to 8 of the present invention, carbon dioxide was dissolved at a high concentration, the foam stability at 25 ° C. was good, and flushing of the skin was observed. Regarding skin blood flow, in the same manner as in (3), after spraying foam on the forearm and wiping, 5 seconds later, using a real-time blood flow imaging device FLPI (Moor Instruments, moorFLPI), the skin tissue blood flow rate is measured. When measured and compared with the blood flow rate at rest without application, blood flow was increased in those with skin flushing.
In Table 1, when the ratio of the component (A) was 30% by mass or less (Comparative Example 1), no skin flushing was observed, and almost no blood flow promoting action was observed. Further, when the ratio of the component (A) is 100% by mass, that is, when the component (B) is not contained (Comparative Example 2), skin flushing is clearly recognized and the blood flow promoting action is remarkably increased, but the bubbles are dripped. The foam stability was poor. Furthermore, when a hydrocarbon mixture (Comparative Example 3) in which the proportion of saturated hydrocarbons having a vapor pressure of 0.1 MPa or more and less than 0.5 MPa at 35 ° C. contained in the component (B) is less than 70% by mass is used, the internal pressure is 0. .7 MPa has been exceeded. Moreover, since the composition liquid of the comparative example 4 with a low viscosity isolate | separated, it did not evaluate.
実施例9〜14及び比較例5
表2記載の処方により、A及びB以外を混合して原液を調整し、原液と、二酸化炭素及び炭化水素混合ガスを耐圧容器に密封してエアゾール組成物を得た。得られたエアゾール組成物を25℃で1週間保存後に、泡安定性及び皮膚血流を評価した。このとき、全ての組成物において、pHは7未満であった。
Examples 9 to 14 and Comparative Example 5
According to the formulation shown in Table 2, ingredients other than A and B were mixed to prepare a stock solution, and the stock solution, carbon dioxide and hydrocarbon mixed gas were sealed in a pressure resistant container to obtain an aerosol composition. After the obtained aerosol composition was stored at 25 ° C. for 1 week, foam stability and skin blood flow were evaluated. At this time, pH was less than 7 in all the compositions.
その結果、本発明の実施例9〜14は、高濃度で二酸化炭素が溶存しており、また25℃での泡安定性が良好で、皮膚の紅潮が認められた。成分(B)としてイソペンタンのみを用いた比較例5は、低温(5℃)における泡はだれやすかった。 As a result, in Examples 9 to 14 of the present invention, carbon dioxide was dissolved at a high concentration, the foam stability at 25 ° C. was good, and flushing of the skin was observed. In Comparative Example 5 in which only isopentane was used as the component (B), bubbles at low temperatures (5 ° C.) were prone to dripping.
実施例15及び16
表3記載の泡沫状保湿液(実施例15)及び泡沫状美容液(実施例16)を調整し、25℃で1週間保存後に、泡安定性及び皮膚血流を評価した。このとき、全ての組成物において、pHは7未満であった。いずれも、泡安定性が良く、皮膚血流の促進効果も認められた。
Examples 15 and 16
The foam-like moisturizing liquid (Example 15) and the foam-like cosmetic liquid (Example 16) shown in Table 3 were prepared and stored at 25 ° C. for 1 week, and the foam stability and skin blood flow were evaluated. At this time, pH was less than 7 in all the compositions. In both cases, the foam stability was good, and the effect of promoting skin blood flow was also observed.
Claims (9)
(A)二酸化炭素
(B)炭素数が3〜5の炭化水素から選ばれる混合物であり、前記混合物中に35℃における蒸気圧0.1MPa以上0.5MPa未満の飽和炭化水素が70〜100質量%含まれる炭化水素混合物 0.1〜3質量%
(C)界面活性剤 0.1〜25質量%
を含有し、(A)と(B)との質量比が35:65〜85:15である液体及び気体を含む組成物を耐圧容器内に内圧が25℃で0.7MPa未満となるように封入してなり、成分(B)に含まれる炭素数4の炭化水素の含有量が全組成物中に0.1〜3質量%であり、かつ耐圧容器に封入する液体の粘度が100〜500,000mPa・sである泡沫状皮膚塗布剤。 The following components (A), (B) and (C),
(A) Carbon dioxide (B) A mixture selected from hydrocarbons having 3 to 5 carbon atoms, and 70 to 100 mass of saturated hydrocarbons having a vapor pressure of 0.1 MPa or more and less than 0.5 MPa at 35 ° C. in the mixture. % Hydrocarbon mixture 0.1 to 3% by mass
(C) Surfactant 0.1-25% by mass
And a composition containing a liquid and a gas having a mass ratio of (A) and (B) of 35:65 to 85:15 is placed in a pressure vessel so that the internal pressure is less than 0.7 MPa at 25 ° C The content of the hydrocarbon having 4 carbon atoms contained in the component (B) is 0.1 to 3% by mass in the entire composition, and the viscosity of the liquid sealed in the pressure vessel is 100 to 500. Foam skin application agent which is 1,000 mPa · s.
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