WO2012150705A1 - 半透明フレグランス組成物 - Google Patents
半透明フレグランス組成物 Download PDFInfo
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- WO2012150705A1 WO2012150705A1 PCT/JP2012/061525 JP2012061525W WO2012150705A1 WO 2012150705 A1 WO2012150705 A1 WO 2012150705A1 JP 2012061525 W JP2012061525 W JP 2012061525W WO 2012150705 A1 WO2012150705 A1 WO 2012150705A1
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Classifications
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- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11B—PRODUCING, e.g. BY PRESSING RAW MATERIALS OR BY EXTRACTION FROM WASTE MATERIALS, REFINING OR PRESERVING FATS, FATTY SUBSTANCES, e.g. LANOLIN, FATTY OILS OR WAXES; ESSENTIAL OILS; PERFUMES
- C11B5/00—Preserving by using additives, e.g. anti-oxidants
- C11B5/0092—Mixtures
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
- A61K8/33—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing oxygen
- A61K8/34—Alcohols
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/72—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds
- A61K8/81—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds obtained by reactions involving only carbon-to-carbon unsaturated bonds
- A61K8/8105—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- A61K8/8111—Homopolymers or copolymers of aliphatic olefines, e.g. polyethylene, polyisobutene; Compositions of derivatives of such polymers
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/72—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds
- A61K8/84—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds obtained by reactions otherwise than those involving only carbon-carbon unsaturated bonds
- A61K8/89—Polysiloxanes
- A61K8/891—Polysiloxanes saturated, e.g. dimethicone, phenyl trimethicone, C24-C28 methicone or stearyl dimethicone
- A61K8/894—Polysiloxanes saturated, e.g. dimethicone, phenyl trimethicone, C24-C28 methicone or stearyl dimethicone modified by a polyoxyalkylene group, e.g. cetyl dimethicone copolyol
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
- A61Q13/00—Formulations or additives for perfume preparations
Definitions
- the present invention relates to a fragrance composition, and more particularly to an alcohol-based translucent fragrance composition that is translucent and excellent in stability.
- a transparent alcohol solution in which 1 to 30% by mass of a fragrance is dissolved in a large amount of ethanol is widely used.
- the appearance of cosmetics and other products has become one of the important factors for consumers to choose, and in the fragrance composition, a new appearance product with a high-class appearance, such as a translucent fragrance product, has been proposed. If obtained, the competitiveness of the product can be enhanced.
- the fragrance composition contains a large amount of alcohol together with a large amount of fragrance because of its fragrance and usability. For this reason, it has been difficult to obtain a stable translucent fragrance composition.
- Patent Document 1 describes an alcohol / oil-in-water emulsion composition in which an oil phase is uniformly and stably dispersed in an outer phase mainly composed of a lower alcohol.
- This emulsified composition contains 50% by weight or more of a lower alcohol such as ethanol, and further contains oil, water, and a specific polyether-modified silicone emulsifier as an essential component as an emulsifier.
- Patent Document 1 also describes a hair cosmetic that is an alcohol / oil-in-water emulsion composition containing an appropriate amount of a fragrance, but the amount of the fragrance in the hair cosmetic is usually 1% by mass or less, Typically, it is only 0.2% by mass or less.
- the present inventors tried to prepare an alcohol-based fragrance composition containing a large amount of fragrance by applying the technique of Patent Document 1 because fragrance is one of the oil components.
- fragrance is one of the oil components.
- a fragrance is used instead of the oil, it becomes a transparent composition, and it is very difficult to obtain a translucent and stable fragrance composition.
- the present invention has been made in view of the background art described above, and an object thereof is to provide an alcohol-based stable translucent fragrance composition containing a large amount of perfume.
- the translucent fragrance composition according to the present invention is: (A) silicone oil; (B) an ⁇ -olefin oligomer which is a hydrogenated product of a 3 to 6-mer of an ⁇ -olefin having 4 to 12 carbon atoms; (C) a polyether-modified silicone represented by the following formula (1); (D) perfume, (E) a lower alcohol having 1 to 4 carbon atoms; (F) water, Containing
- the total amount of (a) silicone oil and (b) ⁇ -olefin oligomer is 2 to 12% by mass in the composition, and the mass ratio of (b) / (a) is 0.1 to 0.7,
- the polyether-modified silicone is 2 to 10 times by mass with respect to (b) the ⁇ -olefin oligomer;
- the fragrance is 3 to 30% by mass in the composition
- (E) The lower alcohol is 50% by mass or more in the composition
- (F) water is 3.5 mass% to 15 mass% in the composition
- A is a general formula: —C 3 H 6 O (C 2 H 4 O) a (C 3 H 6 O) b R ′ (where R ′ is a hydrogen atom, an acyl having 1 to 10 carbon atoms) A group selected from the group consisting of a group and an alkyl group having 1 to 4 carbon atoms, a is an integer of 5 to 50, and b is an integer of 5 to 50).
- R is a methyl group or a phenyl group, m is an integer of 50 to 1,000, and n is an integer of 1 to 40.
- the present invention provides a translucent fragrance composition, wherein the lower alcohol is ethanol in the fragrance composition.
- an alcohol-based translucent fragrance composition containing a large amount of perfume is obtained, and this composition is excellent in stability.
- silicone oil used in the present invention those usually blended in cosmetics and the like can be used.
- silicone oil include linear polysiloxanes (dimethylpolysiloxane, methylphenylpolysiloxane, diphenylpolysiloxane, etc.); cyclic polysiloxanes (decamethylcyclopentasiloxane, dodecamethylcyclohexasiloxane, etc.), three-dimensional Examples thereof include a silicone resin, a silicone rubber, and various modified polysiloxanes (amino-modified polysiloxane, polyether-modified polysiloxane, alkyl-modified polysiloxane, fluorine-modified polysiloxane, etc.) that form a network structure.
- suitable silicone oils in the present invention include chain polysiloxanes and cyclic polysiloxanes.
- the ⁇ -olefin oligomer is a hydrocarbon having a high molecular weight (average molecular weight is usually 300 or more) and liquid at normal temperature.
- the ⁇ -olefin oligomer used in the present invention is a 3 to 6-mer (preferably 3 to 6) linear ⁇ -olefin having 4 to 12 carbon atoms (preferably 6 to 12 carbon atoms, more preferably 8 to 12 carbon atoms).
- a branched saturated hydrocarbon obtained by polymerizing an ⁇ -olefin and then hydrogenating the terminal double bond.
- Such ⁇ -olefin oligomers can be synthesized by known methods, but commercially available products can also be used. Examples of commercially available products include “Synthelan 4” (Nikko Chemicals Co., Ltd.), “Nom Coat HP-30” (Nisshin Oilio Group Co., Ltd.), and the like.
- the ⁇ -olefin oligomer is preferably 0.1 mass times or more, more preferably 0.2 mass times or more with respect to the silicone oil. Moreover, it is preferable that it is 0.7 mass times or less, and also 0.6 mass times or less. If the ⁇ -olefin oligomer is too small relative to the silicone oil, the composition may become transparent. If it is too much, the emulsion may not be sufficiently emulsified and a stable translucent composition may not be obtained. is there.
- the total amount of (a) silicone oil and (b) ⁇ -olefin oligomer is preferably 2% by mass or more, more preferably 4% by mass or more in the fragrance composition of the present invention. Moreover, it is preferable that it is 12 mass% or less, Furthermore, it is 10 mass% or less. If the total amount of (a) silicone oil and (b) ⁇ -olefin oligomer is too small, the composition may become transparent, and if it is too large, it cannot be sufficiently emulsified and a stable translucent composition cannot be obtained. Sometimes
- R is a methyl group or a phenyl group
- m is an integer of 50 to 1,000
- n is an integer of 1 to 40.
- A is a polyoxyalkylene group represented by the formula —C 3 H 6 O (C 2 H 4 O) a (C 3 H 6 O) b R ′.
- R ′ is a group selected from the group consisting of a hydrogen atom, an acyl group having 1 to 10 carbon atoms, and an alkyl group having 1 to 4 carbon atoms, a is an integer of 5 to 50, and b is 5 to 50 Is an integer.
- Examples of the acyl group having 1 to 10 carbon atoms of R ′ include saturated or unsaturated acyl groups, and specifically include formyl group, acetyl group, propionyl group, butyryl group, acryloyl group, benzoyl group, toluoyl group and the like. Is exemplified. Specific examples of the alkyl group having 1 to 4 carbon atoms include a methyl group, an ethyl group, an i-propyl group, an n-propyl group, a t-butyl group, and an n-butyl group.
- the polyether-modified silicone when a or b is less than 5, the polyether-modified silicone does not show a sufficient surface-active effect, and when a or b exceeds 50, the resulting composition is Has a feeling of stickiness.
- the content of the polyoxyalkylene group in the molecule is not particularly limited, but it is preferable that the content of the polyoxyalkylene group exceeds 20% by mass in the total molecular weight. This is because when the content of the polyoxyalkylene group is 20% by mass or less in the total molecular weight, the effect of the polyether-modified silicone is remarkably lowered and the stability may be insufficient.
- M is an integer from 50 to 1,000, and n is an integer from 1 to 40. This is because the stability is poor when m is less than 50 and n is less than 1, and when m is greater than 1,000 and n is greater than 40, the resulting composition is sticky. It is because a feeling comes to arise. Further, m: n is preferably 200: 1 to 5: 1, and particularly preferably 60: 1 to 15: 1.
- the molecular weight of the polyether-modified silicone used in the present invention is not particularly limited, and the viscosity at 25 ° C. is not particularly limited. However, the polyether-modified silicone forms a stable emulsion and has a smooth feeling.
- the viscosity is preferably in the range of 1,000 to 100,000 cps when a 50% by weight solution of octamethyltetrasiloxane or isoparaffin is used.
- the polyether-modified silicone is preferably at least 2 times by mass, more preferably at least 3 times by mass with respect to the ⁇ -olefin oligomer. Moreover, it is preferable that it is 10 mass times or less, Furthermore, it is 9 mass times or less. If the amount of the polyether-modified silicone is too small relative to the ⁇ -olefin oligomer, it may not be sufficiently emulsified and a stable translucent composition may not be obtained, and if it is too much, it may become transparent.
- the perfume used in the present invention is not particularly limited, and any of the perfume normally used in cosmetics, pharmaceuticals, fragrances and the like can be used.
- any of the perfume normally used in cosmetics, pharmaceuticals, fragrances and the like can be used.
- animal-based, plant-based and mineral-based natural flavors and synthetic flavors can be mentioned.
- the fragrance is preferably 3% by mass or more, more preferably 5% by mass or more in the composition of the present invention. Moreover, 30 mass% or less, Furthermore, 20 mass% or less is preferable. If the blending amount of the fragrance is too small, sufficient fragrance cannot be obtained, and the composition may become transparent. On the other hand, if the fragrance is added excessively, the fragrance becomes too strong, stickiness may be produced, transparency may increase, and the amount of other components to be added is limited.
- a lower alcohol is a main component of the continuous phase of a fragrance composition, and 50 mass% or more is mix
- the lower alcohol used in the present invention include monohydric alcohols having 1 to 4 carbon atoms, and ethanol is particularly preferable from the viewpoint of safety. It should be noted that iso-propanol, n-propanol, tert-butanol, sec-butanol and the like are too hydrophobic, and therefore it is desirable to use them together with ethanol when they are blended.
- (F) Water Water is preferably 3.5% by mass, more preferably 4% by mass or more, in the fragrance composition of the present invention. Further, it is preferably 15% by mass or less, more preferably 13% by mass or less. If the amount of water is too small, the composition may become transparent. If the amount is too large, the composition may become milky or the stability may be lowered.
- the fragrance composition of the present invention is preferably produced, for example, as follows.
- (I) (a) Silicone oil, (b) ⁇ -olefin oligomer, (c) polyether-modified silicone, and (d) fragrance are mixed and dissolved at room temperature using a part of (e) lower alcohol (parts) B).
- (Ii) (e) The remainder of the lower alcohol and (f) water are mixed and dissolved at room temperature (part A).
- Part A and Part B are mixed to obtain a fragrance composition.
- a translucent fragrance composition that is a stable microemulsion can be obtained simply by mixing and stirring Parts A and B at room temperature using a stirrer or the like, and heating or emulsification No machine is required.
- the part B is solubilized so as to become a transparent one-liquid solution.
- Part B contains high-viscosity polyether-modified silicone, but (e) has a low viscosity by using a part of the lower alcohol.
- an L value that is a ratio (%) of transmitted light intensity to irradiated light intensity of the composition can be adopted as a semi-transparent index. It means that it is transparent, so that L value of a composition is large, and it is cloudy, so that it is small. In the present invention, the L value is measured as in Examples described later.
- the L value of the translucent fragrance composition of the present invention is 70 to 95, preferably 75 to 90. A composition having an L value of less than 70 is clearly cloudy and has no high-class feeling. On the other hand, if the L value is greater than 95, the transparency is high and a high-class feeling cannot be obtained, and there is almost no difference in appearance from the conventional product.
- the fragrance composition of the present invention can be blended in components that are usually blended in fragrance compositions, cosmetics, quasi drugs, pharmaceuticals, etc., as long as the effects of the present invention are not impaired.
- Other components such as components can be blended. Examples include oils other than silicone oils and ⁇ -olefin oligomers, UV absorbers, whitening agents, surfactants, moisturizers, polyhydric alcohols, vitamins, thickeners, coating agents, antioxidants, and various agents. .
- the fragrance composition of the present invention is suitably used as an aromatic cosmetic such as perfume, eau de perfume, eau de toilette, or eau de cologne. It can also be used as a home fragrance.
- the sample was filled in a quartz glass cell (optical path length: 10 mm) without dilution, and transmission measurement was performed at 20 ° C. using an integrating sphere spectrophotometer (GRETAG MACBETH CE7000A). That is, the sample was irradiated with light uniformly from any angle using an integrating sphere, and the ratio (%) of the transmitted light intensity received in the normal direction of the sample surface to the irradiated light intensity was obtained as the L value.
- GRETAG MACBETH CE7000A integrating sphere spectrophotometer
- the components A were mixed and dissolved at room temperature using a magnetic stirrer to obtain a transparent solution. Separately, the part A was added to and mixed with the part B mixed at room temperature with a magnetic stirrer at room temperature to obtain the desired fragrance composition.
- Fragrance compositions were prepared with the compositions in Table 1. When only the fragrance
- Sample 1 when silicone oil and ⁇ -olefin oligomer were used in combination with a fragrance, a stable translucent composition could be obtained. Without the ⁇ -olefin oligomer, even if other hydrocarbon oils were used, the appearance became transparent, and a translucent composition was not obtained (Sample 3, Sample 5). Moreover, sufficient emulsification could not be performed without silicone oil, and a stable translucent composition could not be obtained (Sample 4). Therefore, further investigation was carried out by changing the ratio of ⁇ -olefin oligomer / silicone oil.
- Fragrance compositions were prepared with the compositions in Table 2.
- the manufacturing method followed Table 1.
- Table 2 if the ⁇ -olefin oligomer is too small relative to the silicone oil, it may become transparent, and if it is too much, sufficient emulsification becomes difficult and a stable translucent composition cannot be obtained. There was a thing. For these reasons, it was considered that the ratio of ⁇ -olefin oligomer / silicone oil was preferably 0.1 to 0.7, more preferably 0.2 to 0.6. Further, the total amount of silicone oil and ⁇ -olefin oligomer was changed and examined.
- Fragrance compositions were prepared with the compositions in Table 3.
- the manufacturing method followed Table 1.
- Table 3 if the total amount of ⁇ -olefin oligomer and silicone oil is too small, it may become transparent, and if it is too much, it may not be sufficiently emulsified and a stable translucent composition may not be obtained. It was. For these reasons, it was considered that the total amount of the ⁇ -olefin oligomer and the silicone oil is preferably 2 to 12% by mass, more preferably 4 to 10% by mass in the composition. In addition, the amount of water was changed and examined.
- Fragrance compositions were prepared with the compositions in Table 4. The manufacturing method followed Table 1. As shown in Table 4, if there is too little water, the fragrance composition may become transparent. On the other hand, when water is added excessively, it may become milky or may cause separation. From these results, it was considered that water was preferably 3.5 to 15% by mass, and more preferably 4 to 13% by mass in the composition. Moreover, it examined by changing the quantity of a fragrance
- Fragrance compositions were prepared with the compositions in Table 5.
- the manufacturing method followed Table 1.
- Table 5 when there was too little fragrance
- the amount of the fragrance when the amount of the fragrance was increased, a translucent composition was obtained, and 30% by mass was also possible.
- the blending amount of the fragrance is preferably 3 to 30% by mass, more preferably 5 to 20% by mass in the composition. Further, the amount of the polyether-modified silicone was changed and examined.
- Fragrance compositions were prepared with the compositions in Table 6.
- the manufacturing method followed Table 1.
- Table 6 if the amount of the polyether-modified silicone is too small relative to the ⁇ -olefin oligomer, it may not be sufficiently emulsified and a stable translucent composition may not be obtained.
- the polyether-modified silicone is added excessively, the composition may become transparent. From these results, it was considered that the polyether-modified silicone is preferably 2 to 10 times by mass, more preferably 3 to 9 times by mass with respect to the ⁇ -olefin oligomer.
- Table 7 shows the results of changing the type of fragrance in Sample 1. As can be seen from Table 7, a stable translucent fragrance composition can be obtained using various perfumes.
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Abstract
Description
一方、化粧料などの製品において、外観は消費者が選択する上での重要な要素の一つとなっており、フレグランス組成物においても高級感のある新しい外観の製品、例えば半透明のフレグランス製品が得られれば、製品の競合性を高めることができる。
しかしながら、フレグランス組成物は、その芳香性、使用性などから、多量の香料とともに多量のアルコールを含んでいる。このため、安定な半透明のフレグランス組成物を得ることは困難であった。
(a)シリコーン油と、
(b)炭素数4~12のα-オレフィンの3~6量体の水素添加物であるα-オレフィンオリゴマーと、
(c)下記式(1)で示されるポリエーテル変性シリコーンと、
(d)香料と、
(e)炭素数1~4の低級アルコールと、
(f)水と、
を含有し、
(a)シリコーン油と(b)α-オレフィンオリゴマーの合計量が組成物中2~12質量%で、且つ、(b)/(a)の質量比が0.1~0.7であり、
(c)ポリエーテル変性シリコーンが(b)α-オレフィンオリゴマーに対して2~10質量倍であり、
(d)香料が組成物中3~30質量%であり、
(e)低級アルコールが組成物中50質量%以上であり、
(f)水が組成物中3.5質量%~15質量%であり、
組成物の照射光強度に対する透過光強度の割合(%)であるL値が70~95であることを特徴とする半透明フレグランス組成物である。
本発明において用いるシリコーン油としては、通常化粧料等に配合されるものを用いることができる。このようなシリコーン油としては、例えば、鎖状ポリシロキサン(ジメチルポリシロキサン、メチルフェニルポリシロキサン、ジフェニルポリシロキサン等);環状ポリシロキサン(デカメチルシクロペンタシロキサン、ドデカメチルシクロヘキサシロキサン等)、3次元網目構造を形成しているシリコーン樹脂、シリコーンゴム、各種変性ポリシロキサン(アミノ変性ポリシロキサン、ポリエーテル変性ポリシロキサン、アルキル変性ポリシロキサン、フッ素変性ポリシロキサン等)等が挙げられる。本発明において好適なシリコーン油の例としては、鎖状ポリシロキサン、環状ポリシロキサンが挙げられる。
α-オレフィンオリゴマーは、高分子量(平均分子量は通常300以上)で、常温液体の炭化水素である。本発明で用いるα-オレフィンオリゴマーは、炭素数4~12(好ましくは炭素数6~12、さらに好ましくは炭素数8~12)の直鎖α-オレフィンの3~6量体(好ましくは3~5量体)の水素添加物であり、α-オレフィンを重合した後、末端の二重結合を水素添加して得られる分岐飽和炭化水素である。このようなα-オレフィンオリゴマーは、公知の方法で合成できるが、市販品を利用することもできる。市販品としては、例えば、「シンセラン 4」(日光ケミカルズ(株))、「ノムコートHP-30」(日清オイリオグループ(株))などが挙げられる。
Aは式-C3H6O(C2H4O)a(C3H6O)bR’で示されるポリオキシアルキレン基である。
R’は水素原子、炭素数1~10のアシル基及び炭素数1~4のアルキル基からなる群から選択される基であり、またaは5~50の整数であり、bは5~50の整数である。
ポリオキシアルキレン基において、a又はbが5未満である場合には、ポリエーテル変性シリコーンが十分な界面活性効果を示さなくなり、またa又はbが50を超える場合には、得られた組成物がべとつき感を有するようになる。
本発明において用いる香料は特に制限されず、化粧料や医薬品、あるいは芳香剤などに通常用いられる香料はいずれも使用することができる。例えば、動物系、植物系、鉱物系の天然香料及び合成香料が挙げられる。
本発明において低級アルコールはフレグランス組成物の連続相の主成分であり、香料の芳香性や使用性などから組成物中50質量%以上配合される。
本発明に用いられる低級アルコールは炭素数1~4の一価アルコールが挙げられるが、安全性の面を考慮すればエタノールが特に好ましい。
なお、iso-プロパノール、n-プロパノール、tert-ブタノール、sec-ブタノール等は疎水性が強すぎるため、これらを配合する場合にはエタノールと併用することが望ましい。
水は本発明のフレグランス組成物中3.5質量%、さらには4質量%以上とすることが好ましい。また、15質量%以下、さらには13質量%以下とすることが好ましい。水が少なすぎると組成物が透明になってしまうことがあり、多すぎると、ミルク状に白濁したり、安定性が低下することがある。
(i)(a)シリコーン油、(b)α-オレフィンオリゴマー、(c)ポリエーテル変性シリコーン、及び(d)香料を、(e)低級アルコールの一部を用いて室温で混合溶解する(パーツB)。
(ii)(e)低級アルコールの残部と(f)水とを室温で混合溶解する(パーツA)。
(iii)パーツAとパーツBとを混合してフレグランス組成物を得る。
前記(i)の工程においては、パーツBが透明な一液相溶液になるように可溶化されることが好適である。また、パーツBは高粘度のポリエーテル変性シリコーンを含むが、(e)低級アルコールの一部を用いることで低粘度になっている。このようなパーツBをパーツAと室温で混合するだけで、特に機械的に乳化せずとも、分散乳化粒子が1μm以下であるマイクロエマルジョンが容易に形成され、安定性に優れる半透明フレグランス組成物(分散相:油相、連続相:含水エタノール相)が得られる。
なお、本発明において、前記必須成分以外の成分を配合する場合には、その親和性に応じてパーツA又はパーツBに適宜配合してフレグランス組成物を調製すればよい。通常の場合、親油性成分はパーツBに、親水性成分はパーツAに配合すればよい。
本発明の半透明フレグランス組成物のL値は70~95、好ましくは75~90である。L値が70より小さい組成物は明らかに白濁しており、高級感がない。一方、L値が95より大きいと透明性が高く、やはり高級感が得られず、従来品とも外観上の差異がほとんどなくなってしまう。
(外観)
試料を調製直後に肉眼で観察した。
サンプルを希釈せずに石英ガラスセル(光路長10mm)に充填し、20℃で、積分球分光光度計(GRETAG MACBETH社 CE7000A)で透過測定を行なった。
すなわち、サンプルに対して積分球によりあらゆる角度から均等に光を照射し、サンプル面の法線方向で受光した透過光強度の照射光強度に対する割合(%)をL値として得た。
試料を室温(約20℃)で1ヶ月保存後、外観を肉眼で観察し、次のように評価した。
○:分離等の外観変化が認められない。
△:分離等の外観変化がほとんど認められない。
×:分離等の外観変化が認められる。
パーツAの成分をマグネチックスターラーを用いて室温で混合溶解し、透明溶液を得た。別に室温で混合したパーツBにマグネチックスターラーで攪拌しながら前記パーツAを室温で添加・混合して、目的のフレグランス組成物を得た。
これに対して、試料1のように、香料とともにシリコーン油とα-オレフィンオリゴマーとを併用した場合には安定な半透明の組成物とすることができた。α-オレフィンオリゴマーなしでは、例え他の炭化水素油を用いたとしても、外観が透明となり、半透明組成物は得られなかった(試料3、試料5)。また、シリコーン油なしでは十分な乳化ができず安定な半透明組成物は得られなかった(試料4)。
そこで、α-オレフィンオリゴマー/シリコーン油の比率を変えてさらに検討を行った。
表2のように、シリコーン油に対してα-オレフィンオリゴマーが少なすぎると、透明になってしまうことがあり、多すぎると十分な乳化が困難となって安定な半透明組成物が得られないことがあった。
このようなことから、α-オレフィンオリゴマー/シリコーン油の比率は、0.1~0.7、さらには0.2~0.6であることが好ましいと考えられた。
さらに、シリコーン油とα-オレフィンオリゴマーとの合計量を変えて検討を行った。
表3のように、α-オレフィンオリゴマーとシリコーン油の合計量が少なすぎると透明になってしまうことがあり、多すぎると十分に乳化できず安定な半透明組成物が得られないことがあった。
このようなことから、α-オレフィンオリゴマーとシリコーン油の合計量は組成物中2~12質量%、さらには4~10質量%であることが好適であると考えられた。
また、水の量を変えて検討を行った。
表4のように、水が少なすぎると、フレグランス組成物が透明になってしまう場合がある。一方、水を過剰に配合するとミルク状に白濁したり、分離を生じたりすることがある。
このような結果から、水は組成物中3.5質量%~15質量%、さらには4~13質量%が好適であると考えられた。
また、香料の量を変えて検討を行った。
表5のように、香料が少なすぎると、フレグランス組成物がミルク状に白濁してしまうことがあった。一方、香料を増量すると半透明組成物が得られ、30質量%の配合も可能であった。しかしながら、香料増量に伴って、L値が上昇して透明に近づく傾向が認められた。
このような結果から、本発明においては、香料の配合量を組成物中3~30質量%、さらには5~20質量%とすることが好適である。
さらに、ポリエーテル変性シリコーンの量を変えて検討を行った。
表6のように、α-オレフィンオリゴマーに対してポリエーテル変性シリコーンの量が少なすぎると、十分に乳化できず安定な半透明組成物が得られないことがあった。一方、ポリエーテル変性シリコーンを過剰に配合すると組成物が透明になることがあった。
このような結果から、ポリエーテル変性シリコーンはα-オレフィンオリゴマーに対して2~10質量倍、さらには3~9質量倍であることが好適であると考えられた。
Claims (2)
- (a)シリコーン油と、
(b)炭素数4~12のα-オレフィンの3~6量体の水素添加物であるα-オレフィンオリゴマーと、
(c)下記式(1)で示されるポリエーテル変性シリコーンと、
(d)香料と、
(e)炭素数1~4の低級アルコールと、
(f)水と、
を含有し、
(a)シリコーン油と(b)α-オレフィンオリゴマーの合計量が組成物中2~12質量%で、且つ、
(b)/(a)の質量比が0.1~0.7であり、
(c)ポリエーテル変性シリコーンが(b)前記α-オレフィンオリゴマーに対して2~10質量倍であり、
(d)香料が組成物中3~30質量%であり、
(e)低級アルコールが組成物中50質量%以上であり、
(f)水が組成物中3.5質量%~15質量%であり、
組成物の照射光強度に対する透過光強度の割合(%)であるL値が70~95であることを特徴とする半透明フレグランス組成物。
(式中、Aは一般式:-C3H6O(C2H4O)a(C3H6O)bR’(式中、R’は水素原子、炭素数1~10のアシル基及び炭素数1~4のアルキル基からなる群から選択される基であり、またaは5~50の整数であり、bは5~50の整数である。)で示されるポリオキシアルキレン基である。Rはメチル基又はフェニル基であり、またmは50~1,000の整数であり、nは1~40の整数である。) - 請求項1記載の組成物において、低級アルコールがエタノールであることを特徴とする半透明フレグランス組成物。
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JP2013513085A JP6029181B2 (ja) | 2011-05-04 | 2012-05-01 | 半透明フレグランス組成物 |
EP12780014.2A EP2706108B1 (en) | 2011-05-04 | 2012-05-01 | Semi-transparent fragrance composition |
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JP2017218440A (ja) * | 2016-06-10 | 2017-12-14 | 株式会社 資生堂 | 制汗又はデオドラント化粧料 |
WO2023127484A1 (ja) * | 2021-12-27 | 2023-07-06 | 株式会社 資生堂 | 水中油型組成物 |
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US10941106B2 (en) | 2013-03-14 | 2021-03-09 | Flotek Chemistry, Llc | Methods and compositions incorporating alkyl polyglycoside surfactant for use in oil and/or gas wells |
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