JP5280695B2 - Oil-in-water emulsified cosmetic - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an oil-in-water type emulsion cosmetic excellent in appearance and stability as the cosmetic blended with a relatively large amount of a non-polar oil agent. <P>SOLUTION: This oil-in-water type emulsion cosmetic is provided by containing (A) 15 to 40 mass% non-polar oil agent e.g. a dimethylpolysiloxane having &le;100 mm<SP>2</SP>/s viscosity, (B) 1 to 10 mass% polyoxyethylene dialkyl ether expressed by general formula (1): R<SP>1</SP>-(OCH<SB>2</SB>CH<SB>2</SB>)<SB>n</SB>-O-R<SP>2</SP>[wherein, R<SP>1</SP>, R<SP>2</SP>are each a 10-22C saturated or unsaturated linear or branched hydrocarbon group in which an optional H may be substituted by hydroxy, and the R<SP>1</SP>, R<SP>2</SP>are each the same or different; and (n) is an integer of 20 to 100], (C) at least 1 kind of a polar oil agent selected from an amino-modified silicone and a higher fatty acid ester and (D) water. <P>COPYRIGHT: (C)2009,JPO&amp;INPIT

Description

  The present invention relates to an oil-in-water emulsified cosmetic composition particularly suitable for application to hair, and more specifically, the appearance and stability of the cosmetic composition itself, the feeling of application when applied to hair, and the hair obtained after application. The present invention relates to an oil-in-water emulsified cosmetic that exhibits particularly excellent performance in terms of improving touch.

  In general, oil-in-water emulsified cosmetics in which the outer phase is an aqueous phase and the inner phase is an oil component are known. The oil-in-water emulsified cosmetic has effects such as ease of use feeling adjustment and ease of washing from fingers. Therefore, oil-in-water emulsified cosmetics are applied to, for example, hair cosmetic compositions. By the way, non-polar oil agents such as silicone oil and isoparaffin are conventionally known as oil components to be blended in cosmetics. Non-polar oils have the effect that they are less sticky and have a good feeling in use. However, the nonpolar oil agent has a problem that storage stability is poor in an emulsified cosmetic. On the other hand, in order to improve the stability of the nonpolar oil agent, simply increasing the amount of the emulsified component causes the particles to become too fine, and the appearance of the emulsified cosmetic becomes a glossy cream and impairs the beauty. there were. In addition, since the sticky feeling is increased, there is a problem that the feeling of use and, for example, the feeling of application when applied to hair and the feeling after application are also impaired.

Therefore, conventionally, emulsified cosmetics disclosed in Patent Documents 1 and 2 are known. Patent Document 1 discloses a configuration in which an oil component is dispersed by blending a thickening polymer such as carboxyvinyl polymer and polyacrylamide. With this configuration, sufficient storage stability of the nonpolar oil agent can be obtained. Patent Document 2 discloses a configuration in which silicone oil is emulsified using a silicone-based surfactant and a nonionic surfactant. Thereby, an emulsified cosmetic having a good appearance can be obtained.
JP 2004-91401 A JP-A-10-120524

  However, the emulsified cosmetic disclosed in Patent Document 1 has a problem that the appearance is watery, the coating feeling is poor based on the thixotropic property of the thickening molecule, and the feeling after coating is reduced due to the formation of a film after coating. It was happening. The emulsified cosmetic disclosed in Patent Document 2 has a problem that storage stability decreases when the blending amount of the nonpolar oil agent is increased in an oil-in-water type dosage form. Therefore, there is a problem that the effect obtained by the nonpolar oil agent, for example, the feeling improvement effect cannot be obtained sufficiently.

  As a result of intensive studies by the present inventors, the present invention stably blends a large amount of nonpolar oil agent while maintaining good appearance by using a specific nonionic surfactant and oil component. It has been made by finding out that it can be done. An object of the invention is to provide an oil-in-water emulsified cosmetic that is excellent in appearance and stability in an oil-in-water emulsified cosmetic in which a relatively large amount of nonpolar oil is blended.

In order to achieve the above object, the oil-in-water emulsified cosmetic according to claim 1 includes the following components (A) to (D). (A) 15 to 40% by mass of at least one nonpolar oil selected from dimethylpolysiloxane having a viscosity of 100 mm ² / s or less, decamethylcyclopentasiloxane, dodecamethylcyclohexasiloxane, and isoparaffin having 30 or less carbon atoms. (B) 1-10 mass% of polyoxyethylene dialkyl ether represented by the following general formula (1).
R ¹ — (OCH ₂ CH ₂ ) _n —O—R ² (1)
(In the formula, each of R ¹ and R ² is a saturated or unsaturated linear or branched hydrocarbon group having 10 to 22 carbon atoms, and any hydrogen atom in the hydrocarbon is substituted with a hydroxyl group. Represents a good group, and R ¹ and R ² may be the same or different, and n represents an integer of 20 to 100)
(C) 0.01-10 mass% of at least 1 type of polar oil agent chosen from amino modified silicone and higher fatty acid ester. (D) Water.

  The invention according to claim 2 is the oil-in-water emulsified cosmetic according to claim 1, wherein the content of the component (A) and the content of the component (B) are (B) / (A ) = 0.05 to 0.6.

  ADVANTAGE OF THE INVENTION According to this invention, in the oil-in-water-type emulsified cosmetic in which a nonpolar oil agent is mix | blended comparatively much, the oil-in-water-type emulsified cosmetic which is excellent in an external appearance and stability can be provided.

Hereinafter, the embodiment which actualized the oil-in-water type emulsion cosmetics of the present invention is described in detail.
The oil-in-water emulsified cosmetic of this embodiment is (A) at least selected from dimethylpolysiloxane having a viscosity of 100 mm ² / s or less, decamethylcyclopentasiloxane, dodecamethylcyclohexasiloxane, and isoparaffin having 30 or less carbon atoms. 15-40 mass% of a kind of non-polar oil agent, (B) 1-10 mass% of polyoxyethylene dialkyl ether represented by the following general formula (1),
R ¹ — (OCH ₂ CH ₂ ) _n —O—R ² (1)
(In the formula, each of R ¹ and R ² is a saturated or unsaturated linear or branched hydrocarbon group having 10 to 22 carbon atoms, and any hydrogen atom in the hydrocarbon is substituted with a hydroxyl group. R ¹ and R ² may be the same or different, and n represents an integer of 20 to 100), (C) at least one polar oil selected from amino-modified silicones and higher fatty acid esters, And (D) contains water and has the form of an oil-in-water emulsion.

At least one nonpolar oil selected from dimethylpolysiloxane (dimethicone) having a viscosity of 100 mm ² / s or less, decamethylcyclopentasiloxane, dodecamethylcyclohexasiloxane, and isoparaffin having 30 or less carbon atoms is improved in use feeling, For example, it is blended to reduce stickiness during use. Moreover, when an oil-in-water type emulsified cosmetic is applied to hair, it mix | blends in order to improve an application feeling and the feeling after use. Examples of the isoparaffin having 30 or less carbon atoms include volatile isoparaffin, light isoparaffin, light liquid isoparaffin, hydrogenated polyisobutene, and isobutene. The blending amount of the nonpolar oil in the oil-in-water emulsified cosmetic is 15 to 40% by mass, preferably 15 to 30% by mass. When the blending amount is less than 15% by mass, it is not possible to improve the feeling of use, the feeling of application, and the feeling after application. On the other hand, when the blending amount exceeds 40% by mass, the stability and appearance of the oil-in-water emulsified cosmetic may be deteriorated.

  The polyoxyethylene dialkyl ether represented by the general formula (1) is a kind of nonionic surfactant, and improves the appearance and stability of an oil-in-water emulsified cosmetic containing a relatively large amount of nonpolar oil. Is formulated for. Moreover, when an oil-in-water type emulsion cosmetic is applied to hair, it mix | blends in order to improve an application feeling. Examples of the polyoxyethylene dialkyl ether represented by the general formula (1) include polyoxyethylene (average polymerization degree = 50 to 100) dilauryl ether, polyoxyethylene (average polymerization degree = 50 to 100) dimyristyl ether, Polyoxyethylene (average degree of polymerization = 50-100) myristyl lauryl diether, polyoxyethylene (average degree of polymerization = 50-100) dicetyl ether, polyoxyethylene (average degree of polymerization = 50-100) cetyl stearyl diether, Examples include polyoxyethylene (average degree of polymerization = 50 to 100) distearyl ether, polyoxyethylene (average degree of polymerization = 50 to 100) dioleyl ether, and cetealess (average degree of polymerization = 50 to 100) myristyl glycol. These polyoxyethylene dialkyl ethers may be blended singly or in combination of two or more.

  The compounding amount of the polyoxyethylene dialkyl ether represented by the general formula (1) in the oil-in-water emulsified cosmetic is 1 to 10% by mass, preferably 1 to 6% by mass. When the blending amount is less than 1% by mass, the appearance, stability and coating feeling cannot be improved. On the other hand, if the blending amount exceeds 10% by mass, the appearance, the feeling of application and the feeling after application may be reduced.

  Moreover, it is preferable that content of (A) component and content of (B) component exist in the range of (B) / (A) = 0.05-0.6 by mass ratio, and 0.1-0 More preferably, it is in the range of .35. By defining the mass ratio in the range of (B) / (A) = 0.05 to 0.6, the feeling in use can be further improved. Moreover, when an oil-in-water type emulsified cosmetic is applied to hair, a feeling of application and a touch can be improved more.

  At least one polar oil selected from amino-modified silicones and higher fatty acid esters is blended to improve the appearance of the oil-in-water emulsion cosmetic. Moreover, when an oil-in-water type emulsion cosmetic is applied to hair, it mix | blends in order to improve an application feeling. The amino-modified silicone represents an organosiloxane polymer having at least one aminoalkyl group in one molecule represented by the following general formula (2).

（式中、Ｒ³はメチル基又はヒドロキシル基を表し、Ｒ⁴はメチル基、ヒドロキシル基又はＲ⁵を表す。Ｒ⁵はＲ⁶Ｚで表されるアミノ基又はアンモニウム基を有する置換基を表し、ａ及びｂはそれぞれ分子量に依存する整数を表し、ａ＋ｂが５０〜２００００である。また、Ｒ⁶は炭素数３〜６の２価の炭化水素基を表す。Ｚは−ＮＲ⁷ ₂、−Ｎ⁺Ｒ⁷ ₃Ａ^-、−ＮＲ⁷（ＣＨ₂）_cＮＲ⁷ ₂、−ＮＲ⁷（ＣＨ₂）_cＮ⁺Ｒ⁷ ₃Ａ^-、及び−ＮＲ⁷（ＣＨ₂）_cＮＲ⁷Ｃ＝Ｏ（Ｒ⁸）からなる群より選ばれる１価の基を表す。ここで、Ｒ⁷は水素原子又は炭素数１〜４の炭化水素基を示し、Ｒ⁸は炭素数１〜４の炭化水素基を示し、Ａはハロゲン原子を表し、ｃは２〜６の整数を表す。）
上記の一般式（２）で表されるアミノ変性シリコーンの具体例としては、アミノプロピルメチルシロキサン・ジメチルシロキサン共重合体（アミノプロピルジメチコン）、アミノエチルアミノプロピルシロキサン・ジメチルシロキサン共重合体（アモジメチコン）、アミノエチルアミノプロピルメチルシロキサン・ジメチルシロキサン共重合体（トリメチルシリルアモジメチコン）等が挙げられる。これらのアミノ変性シリコーンは単独で配合してもよいし、二種以上を組み合わせて配合してもよい。

(Wherein, R ³ represents a methyl group or a hydroxyl group, R ⁴ is .R ⁵ represents methyl group, a hydroxyl group or R ⁵ represents a substituent having an amino group or an ammonium group represented by R ⁶ Z , A and b each represent an integer depending on the molecular weight, a + b is from 50 to 20000, R ⁶ is a divalent hydrocarbon group having 3 to ⁶ carbon atoms, Z is —NR ⁷ ₂ , − N ⁺ R ⁷ ₃ A ⁻ , —NR ⁷ (CH ₂ ) _c NR ⁷ ₂ , —NR ⁷ (CH ₂ ) _c N ⁺ R ⁷ ₃ A ⁻ , and —NR ⁷ (CH ₂ ) _c NR ⁷ C═O Represents a monovalent group selected from the group consisting of (R ⁸ ), wherein R ⁷ represents a hydrogen atom or a hydrocarbon group having 1 to 4 carbon atoms, and R ⁸ represents a hydrocarbon group having 1 to 4 carbon atoms. A represents a halogen atom, and c represents an integer of 2 to 6.)
Specific examples of the amino-modified silicone represented by the general formula (2) include aminopropylmethylsiloxane / dimethylsiloxane copolymer (aminopropyl dimethicone), aminoethylaminopropylsiloxane / dimethylsiloxane copolymer (amodimethicone). ), Aminoethylaminopropylmethylsiloxane / dimethylsiloxane copolymer (trimethylsilylamodimethicone), and the like. These amino-modified silicones may be blended singly or in combination of two or more.

  The higher fatty acid ester may be any of monoesters, diesters and triesters of fatty acids having 8 or more carbon atoms. In addition, both synthetic products and natural products can be used. Examples of higher fatty acid esters include isopropyl myristate, cetyl octanoate, isononyl isononanoate, octyldodecyl myristate, isopropyl stearate, stearyl stearate, myristyl myristate, isotridecyl myristate, 2-ethylhexyl palmitate, ricinoleic acid Octyldodecyl, fatty acid (C10-30) (cholesteryl / lanosteryl), olive oil, camellia oil, shea fat, almond oil, safflower oil, sunflower oil, soybean oil, cottonseed oil, sesame oil, corn oil, rapeseed oil, rice bran oil, rice Examples include germ oil, grape seed oil, and macadamia nut oil.

  The blending amount of at least one polar oil selected from amino-modified silicone and higher fatty acid ester in the oil-in-water emulsion cosmetic is preferably 0.01 to 10% by mass, preferably 0.1 to 5% by mass. is there. When the blending amount is less than 0.01% by mass, the appearance and the coating feeling cannot be improved. On the other hand, if the blending amount exceeds 10% by mass, the hair feels sticky, which is not preferable.

Water is used as a solvent or dispersion medium for each component. Water is blended in an appropriate amount together with the above components to emulsify the cosmetic into an oil-in-water type.
The oil-in-water emulsified cosmetics are, for example, water-soluble polymer compounds, oily components other than those described above, polyhydric alcohols, surfactants other than those described above, saccharides, preservatives, and stabilizers within a range not impairing the effects of the present invention. , PH adjusters, plant extracts, herbal extracts, vitamins, fragrances, ultraviolet absorbers, and antioxidants may be contained.

  Examples of the water-soluble polymer compound include gum arabic, karaya gum, gum tragacanth, sodium alginate, xanthan gum, cellulose derivatives, crosslinked polyacrylic acid, polydimethylmethylene piperidinium chloride, and polyquaternium-10. Examples of the crosslinked polyacrylic acid include carboxyvinyl polymer (carbomer).

  The oil component imparts a moist feeling to the hair when the oil-in-water emulsion cosmetic is applied to the hair. Examples of the oil component include waxes other than the component (C), higher alcohols, hydrocarbons other than the component (A), higher fatty acids, alkyl glyceryl ethers, esters other than the component (C), (A) and (C ) Silicones other than the component can be mentioned.

Examples of waxes other than the component (C) include beeswax, candelilla wax, carnauba wax, and lanolin.
Examples of higher alcohols include lauryl alcohol, myristyl alcohol, cetanol, stearyl alcohol, cetostearyl alcohol, aralkyl alcohol, behenyl alcohol, 2-hexyldecanol, isostearyl alcohol, 2-octyldodecanol, decyltetradecanol, oleyl alcohol, and Lanolin alcohol is mentioned.

  Examples of hydrocarbons other than component (A) include paraffin, olefin oligomer, mineral oil (liquid paraffin), squalane, polybutene, polyethylene, microcrystalline wax, and petrolatum. Examples of the higher fatty acid include lauric acid, myristic acid, palmitic acid, stearic acid, behenic acid, isostearic acid, 12-hydroxystearic acid, oleic acid, and lanolin fatty acid. Examples of the alkyl glyceryl ether include batyl alcohol, chimyl alcohol, ceralkyl alcohol, and isostearyl glyceryl ether.

Examples of the esters other than the component (C) include cetyl lactate, lanolin acetate, diisostearyl malate, diisopropyl adipate, and dioctyl succinate.
Examples of silicones other than the components (A) and (C) include dimethylpolysiloxane (dimethicone) having a viscosity exceeding 100 mm ² / s, methylphenylpolysiloxane, terminal hydroxyl group-modified dimethylpolysiloxane, polyether-modified silicone, and average polymerization. Examples thereof include highly polymerized silicone, betaine-modified silicone, alkyl-modified silicone, alkoxy-modified silicone, mercapto-modified silicone, carboxy-modified silicone, and fluorine-modified silicone having a degree of 650 to 10,000. Examples of the polyether-modified silicone include PEG-12 dimethicone. Specific examples of these oil components may be used alone or in combination of two or more.

  Examples of the polyhydric alcohol include glycerin, diglycerin, polyglycerin, ethylene glycol, isopentyldiol, propylene glycol (PG), dipropylene glycol (DPG), and 1,3-butylene glycol (BG).

  A surfactant may be added as an emulsifier of the composition or a solubilizer of each component in the composition in order to further improve the stability of the composition. Examples of the surfactant include ionic surfactants and nonionic surfactants other than those described above. Examples of the ionic surfactant include a cationic surfactant, an anionic surfactant, and an amphoteric surfactant. Examples of the anionic surfactant include alkyl ether sulfate, alkyl sulfate, alkenyl ether sulfate, alkenyl sulfate, olefin sulfonate, alkane sulfonate, saturated or unsaturated fatty acid salt, alkyl or alkenyl ether carboxylate , Α-sulfone fatty acid salts, N-acylamino acid type surfactants, phosphate mono- or diester type surfactants, and sulfosuccinate esters. Examples of the alkyl ether sulfate include sodium laureth sulfate. Examples of the N-acylamino acid type surfactant include sodium N-lauroyl-L-glutamate. Examples of the counter ion of the anionic group of these surfactants include sodium ion, potassium ion, and triethanolamine.

  Examples of the cationic surfactant include alkyltrimethylammonium salt, alkenyltrimethylammonium salt, dialkyldimethylammonium salt, dialkenyldimethylammonium salt, lanolin fatty acid aminopropylethyldimethylammonium, and alkyloylamidopropyldimethylamine. Examples of the alkyl trimethyl ammonium salt include stearyl trimethyl ammonium chloride and behenyl trimethyl ammonium chloride. Examples of the dialkyldimethylammonium salt include distearyldimethylammonium chloride. Examples of the counter ion of the cationic group of these surfactants include chloride ion, bromide ion, iodide ion, alkyl sulfate ion, and saccharin.

  Examples of amphoteric surfactants include cocobetaine, lauramidopropyl betaine, cocamidopropyl betaine, sodium lauroamphoacetate, and sodium cocoamphoacetate.

  Examples of nonionic surfactants other than the component (B) include polyoxyalkylene alkyl ethers, polyoxyalkylene alkenyl ethers, polyoxyethylene sorbitan fatty acid esters, sucrose fatty acid esters, sorbitan fatty acid esters, and alkyl saccharide surface activity. Agents, glycerin fatty acid esters, polyoxyethylene hydrogenated castor oil, fatty acid alkanolamides, and alkylamine oxides. Examples of the polyoxyalkylene alkyl ether include laureth, ceteth, steareth, and palace. Specific examples of these surfactants may be used alone or in combination of two or more.

  Examples of the saccharide include sorbitol and maltose. Examples of the preservative include parabens. Examples of the stabilizer include phenacetin, 8-hydroxyquinoline, acetanilide, sodium pyrophosphate, barbituric acid, uric acid, and tannic acid. Examples of the pH adjuster include lactic acid, glycolic acid, tartaric acid, malic acid, pyrrolidone carboxylic acid (PCA), succinic acid, citric acid, glutamic acid, 2-amino-2-methyl-1-propanol (AMP), and triethanolamine. (TEA), and arginine. Examples of the antioxidant include ascorbic acid.

According to the oil-in-water emulsified cosmetic of the present embodiment, the following effects can be obtained.
(1) In this embodiment, in an oil-in-water emulsion cosmetic in which a relatively large amount of nonpolar oil is blended, from the nonionic surfactant represented by the general formula (1), amino-modified silicone and higher fatty acid ester At least one selected polar oil was used in combination. Accordingly, it is possible to improve the appearance and stability of the oil-in-water emulsified cosmetic, and the feeling of application and feel when applied to hair.

(2) In this embodiment, at least one nonpolar oil agent selected from dimethylpolysiloxane having a viscosity of 100 mm ² / s or less, decamethylcyclopentasiloxane, dodecamethylcyclohexasiloxane, and isoparaffin having 30 or less carbon atoms is used. -40 mass% was mix | blended. Therefore, it is possible to improve the feeling of use and the feeling of application and feel when applied to hair.

  (3) In the present embodiment, the content of the component (A) and the content of the component (B) are preferably in the range of (B) / (A) = 0.05 to 0.6 by mass ratio. . Thereby, a usability can be improved more. Moreover, when an oil-in-water type emulsified cosmetic is applied to hair, a feeling of application and a touch can be improved more.

In addition, you may change the said embodiment as follows.
-In the said embodiment, it comprised as 1 agent type | mold which mix | blends each component which comprises an oil-in-water type emulsion cosmetic. However, each component may be separated into a multi-drug form and mixed immediately before use.

-In the said embodiment, it does not specifically limit as an application form, For example, a hair cream, hand cream, and face cream are mentioned.
-In the said embodiment, the coating method is not specifically limited, A well-known method can be used suitably. For example, when applying to hair, the application method using a comb or a brush, the application method by a hand comb, the application method by spraying (spraying) can be mentioned.

Next, the embodiment will be described more specifically with reference to examples and comparative examples.
Each component shown in Table 1 and Table 2 was mixed to prepare a hair cream. The hair cream was evaluated for appearance and stability, as well as a feeling of application and feel when applied to hair. The evaluation results are shown in Tables 1 and 2. In addition, the unit of the numerical value which shows the mixing | blending of each component in Table 1, 2 is the mass%. Moreover, the notation of (A)-(D) in a table | surface shows the compound corresponding to each component of this-application claim. On the other hand, the notations a and b in the table indicate comparative compounds of the respective components described in the claims of the present application.

<Appearance>
About the hair cream of each Example and the comparative example, the appearance was judged by evaluating whether 20 panelists produced the glossy beauty visually. Out of 20 panelists, the number of people evaluated to generate aesthetics is 18 or more is “excellent”, 11 to 17 is “good”, and 4 to 10 is “slightly bad”. In the case of less than 4 people, it was judged as “bad”.

<Stability>
About hair cream of each example and comparative example, it is judged whether stability is good by putting it in a glass bottle and storing it for one month in a constant temperature bath at 50 ° C. to visually evaluate the separation state of the hair cream. did. The sample was classified as “excellent” in which no separation was observed, “good” in which separation was hardly observed, “slightly bad” in which separation was slightly recognized, and “bad” in which separation was considerably recognized.

<Apply feeling>
About the hair cream of each Example and a comparative example, 20 panelists judged about the touch at the time of apply | coating to hair by hand. A case where the feel during use was moist and rich was designated as “excellent”, a case where it was a little bit smooth, “good”, a case where it was sticky, “slightly bad”, and a case where it was watery, “bad”.

<Feel>
Each hair cream-treated hair bundle was obtained by applying the hair cream of each Example and Comparative Example to the hair bundle using a brush and leaving it at 30 ° C. for 30 minutes.

  20 panelists put their fingers through the hair bundle and evaluated whether or not there is a feeling of roughness. The case where the number of persons who evaluated that there is no roughness is 18 or more is “excellent”. “Fair”, 4 to 10 cases were “slightly bad”, and less than 4 were “bad”.

表１に示されるように、（Ａ）〜（Ｄ）を含有する実施例１〜１２では、外観、安定性、塗布感、及び感触のいずれの評価も「優れる」又は「良好」であることが確認された。特に、（Ａ）成分の含有量と（Ｂ）成分の含有量が、質量比で（Ｂ）／（Ａ）＝０．０５〜０．６の範囲にある実施例１〜１０は、上記いずれの評価も「優れる」であった。

As shown in Table 1, in Examples 1 to 12 containing (A) to (D), all the evaluations of appearance, stability, coating feeling, and feel are “excellent” or “good”. Was confirmed. In particular, Examples 1 to 10 in which the content of the component (A) and the content of the component (B) are in the range of (B) / (A) = 0.05 to 0.6 by mass ratio Was also “excellent”.

  On the other hand, as shown in Table 2, (A) Comparative Example 1 containing no non-polar oil agent resulted in a decrease in the appearance of the hair cream. Moreover, in the comparative example 1, the application feeling and the touch at the time of applying to hair brought a "bad" result. (A) Comparative Examples 2-4 which used another oil agent instead of a nonpolar oil agent show that all evaluation is low. Moreover, it turns out that the improvement effect of an external appearance, an application feeling, and a touch is not obtained for the comparative example 5 whose compounding quantity of (A) nonpolar oil agent is less than 15 mass%. Moreover, it turns out that the external appearance, stability, and coating feeling fall in the comparative example 6 in which the compounding quantity of (A) nonpolar oil agent exceeds 40 mass%.

  The comparative example 7 which does not contain (B) component resulted in the appearance and stability of a hair cream falling. In Comparative Example 7, the coating feeling was “slightly bad”. In Comparative Examples 8 to 11 in which another surfactant was used instead of the component (B), no effect of improving the appearance and stability of the hair cream was observed. It can be seen that Comparative Example 12 in which the blending amount of the component (B) is less than 1% by mass cannot obtain the effect of improving the appearance and stability of the hair cream. It can be seen that in Comparative Example 13 in which the blending amount of the component (B) exceeds 10% by mass, the appearance and feeling of application of the hair cream are lowered.

  Comparative Examples 14 and 15 containing no component (C) resulted in a decrease in appearance and feeling of application. It turns out that the comparative example 16 which mix | blended the carboxy vinyl polymer instead of (B) component cannot obtain the external appearance, a coating feeling, and the improvement effect of a touch. It turns out that the comparative example 17 which increased the compounding quantity of the cetanol instead of (B) component cannot acquire any effect.

Next, technical ideas that can be grasped from the above-described embodiment and other examples will be described below together with their effects.
(A) The polyoxyethylene dialkyl ether represented by the general formula (1) includes polyoxyethylene (average polymerization degree = 50 to 100) cetyl stearyl diether and ceteares (average polymerization degree = 50 to 100) myristyl glycol. The oil-in-water emulsified cosmetic, which is at least one selected from:

(B) The oil-in-water emulsified cosmetic, wherein the amino-modified silicone is at least one selected from aminopropyl dimethicone and modimethicone.
(C) The oil-in-water emulsion cosmetic, wherein the higher fatty acid ester is at least one selected from isopropyl myristate and macadamia nut oil.

Claims (2)

An oil-in-water emulsified cosmetic comprising the following components (A) to (D):
(A) 15 to 40% by mass of at least one nonpolar oil selected from dimethylpolysiloxane having a viscosity of 100 mm ² / s or less, decamethylcyclopentasiloxane, dodecamethylcyclohexasiloxane, and isoparaffin having 30 or less carbon atoms.
(B) 1-10 mass% of polyoxyethylene dialkyl ether represented by the following general formula (1).
R ¹ — (OCH ₂ CH ₂ ) _n —O—R ² (1)
(In the formula, each of R ¹ and R ² is a saturated or unsaturated linear or branched hydrocarbon group having 10 to 22 carbon atoms, and any hydrogen atom in the hydrocarbon is substituted with a hydroxyl group. Represents a good group, and R ¹ and R ² may be the same or different, and n represents an integer of 20 to 100)
(C) 0.01-10 mass% of at least 1 type of polar oil agent chosen from amino modified silicone and higher fatty acid ester.
(D) Water.   Content of said (A) component and content of (B) component are (B) / (A) = 0.05-0.6 by mass ratio, The water of Claim 1 characterized by the above-mentioned. Oil emulsified cosmetic.