JP4812241B2 - Emulsifying composition for hair - Google Patents

Description

  The present invention relates to an emulsion composition that can be used as a hair cosmetic.

  Conventionally, there are many hair styling agents whose main purpose is to polish the hair, but many of them have been polished with oil. For this reason, such hair styling agents and out bath hair treatment agents are often emulsified compositions containing oil, but such bases have a hair-glossing effect immediately after use. It is recognized that the gloss tends to disappear because the oil adheres to the finger or diffuses as the time passes.

  In order to solve such problems, as a surfactant, a nonionic surfactant having a Kraft point of 40 ° C. or higher such as a sucrose fatty acid ester was used, and the oil phase (emulsified particles) was refined, An oil-in-water emulsion type hair composition in which the oil phase component can be released slowly has been filed by the present applicant. This emulsified composition for hair is excellent in setting power immediately after use, but also has a tendency to have a stiff feeling.

Prior literature relating to the present invention is as follows.
Japanese Patent No. 2711541 Japanese Patent No. 2849339 JP-A-11-171739

  Patent Document 1 describes a polyhydric alcohol-in-oil emulsified composition obtained by adding oil to a gelled composition obtained by adding a sucrose fatty acid ester, a polyhydric alcohol, and water.

  Patent Document 2 describes an emulsified cosmetic containing an alkyl glycoside and a sucrose fatty acid ester in a cosmetic containing an oily substance and water.

  Patent Document 3 describes a hair styling composition containing a specific hair styling polymer and a sucrose fatty acid ester.

  Therefore, the problem to be solved by the present invention is to provide means for improving the feel after use of the emulsified composition for hair containing fine emulsified particles using the above sucrose fatty acid ester and the like. .

  As a result of studying the above-mentioned problems to solve the above problems, the present inventor used the fine emulsified particles by making the fine emulsified particles and other specific emulsified particles coexist in the aqueous phase. The present invention was completed by finding that an oil-in-water emulsified composition capable of improving the feeling of use immediately after use as well as maintaining the original gloss when it was present.

That is, the present invention is an oil-in-water emulsion composition that provides an emulsion composition for hair (hereinafter also referred to as the present emulsion composition) containing the following two oil phases as the oil phase. is there.
[First oil phase] An oil phase according to the following (1) to (4) (hereinafter also referred to as a hard oil phase).
(1) The surfactant constituting the oil phase is substantially composed of sucrose fatty acid ester which is solid at normal temperature and has a Kraft point of 40 ° C. or higher. It is 0.5-6 mass% in the inside.
(2) oil contained in an oil phase, a hydrocarbon oil, animal and vegetable oils, ester oils, higher alcohols, higher fatty acids, and is one or more oils selected from the group consisting of silicone oil, and further, The blending amount of the oil is 10 times (mass ratio) or less with respect to the sucrose fatty acid ester of (1), and is 3% by mass or more of the whole composition .
(3) The average particle size is 0.5 μm or less.
(4) An oil phase emulsified by a high pressure emulsification method.
[Second Oil Phase] An average particle size of 0.5 to 100 μm formed by containing a surfactant and / or an alkyl-modified carboxyvinyl polymer and an oil component that can be used in the first oil phase. An oil phase (hereinafter also referred to as a soft oil phase).

  The emulsified composition is an oil-in-water emulsion composition in which the hard oil phase and the soft oil phase coexist in the aqueous phase, and the finally produced emulsion composition satisfies this condition. Insofar as the manufacturing method is not limited.

  Typically, an oil-in-water emulsion composition containing a hard oil phase (hereinafter also referred to as a first emulsion composition) and an emulsion composition containing a soft oil phase (hereinafter referred to as a second emulsion composition) This emulsion composition can be manufactured by preparing both separately and mixing both.

Regarding the first emulsion composition The first emulsion composition is an oil-in-water emulsion composition containing the following (a) to (c) and having an average emulsion particle size of 0.5 μm or less.
(A) Sucrose fatty acid ester and / or polyglycerin fatty acid ester (hereinafter also referred to as a hard surfactant) that is solid at normal temperature and has a Kraft point of 40 ° C. or higher.
(B) Oil [content is 10 times the amount (mass ratio) or less with respect to the nonionic surfactant of (a)]
(C) water

  The Kraft point is the temperature at which the solubility of water in a surfactant increases rapidly. Below that temperature, the surfactant can only be dissolved in a monomolecular form, and above that temperature, it can be dissolved in a monomolecular form. It is known that it can be dissolved in a micellar form (from Kyoritsu Shuppan Co., Ltd .: Chemical Dictionary)

  That is, a hard surfactant, which is a nonionic surfactant having a Kraft point of 40 ° C. or higher, rapidly increases in solubility in water at 40 ° C. or higher, but after dissolution, the surfactant aqueous solution is returned to room temperature. And a nonionic surfactant from which a solid substance of the surfactant is deposited.

Specifically, the hard surfactant is a sucrose fatty acid ester such as sucrose monostearate, sucrose monopalmitate, sucrose monolaurate, sucrose monooleate, sucrose distearate, sucrose dipalmitate esters, sucrose dilaurate ester, sucrose dioleate ester, sucrose coconut fatty acid ester and the like, as polyglycerol fatty acid esters, polyglycerol monostearate, polyglycerol monooleate etc., Can be mentioned .

  The content of the hard surfactant in the first emulsified composition is preferably 0.5 to 6% by mass in the product formulation, and particularly preferably 1 to 3% by mass.

  The first emulsified composition contains a surfactant other than the hard surfactant (for example, a nonionic surfactant other than the hard surfactant, an amphoteric surfactant, an anionic surfactant, a cation). Active surfactant) can be contained, but the desired first emulsified composition can be produced without substantial inclusion.

  The oil is a general oil that can be used in hair cosmetics and skin cosmetics. For example, hydrocarbon oils such as liquid paraffin and squalane, animal and vegetable oils such as mink oil, jojoba oil, and avocado oil, ester oils such as cetyl isooctanoate, isopropyl myristate, and isocetyl myristate, cetyl alcohol, isostearyl alcohol Higher fatty acids such as behenyl alcohol, higher fatty acids such as stearic acid, palmitic acid, and behenic acid.

  Examples of the oil component include silicone oils such as dimethylpolysiloxane, methylphenylpolysiloxane, cyclic dimethylpolysiloxane, polyether-modified silicone, amino-modified silicone, betaine-modified silicone, alkyl-modified silicone, and alkoxy-modified silicone.

  Among these, silicone oil is preferably used as all or part of the oil content.

  The oil content in the first emulsified composition is preferably 3% by mass or more in the product formulation and 10 times (mass ratio) or less with respect to the hard surfactant. When the oil content is less than 3% by mass in the product formulation, the glossing effect due to the oil tends to be insufficient. When the oil content exceeds 10 times the amount of the hard surfactant, the emulsified particle size is 0.5 μm. It becomes difficult to be within.

  As described above, the first emulsified composition is an oil-in-water emulsified composition, and the emulsified particles (hard oil phase) are required to be fine particles having an average particle size of 0.5 μm or less. . When this average emulsified particle diameter exceeds 0.5 μm, the emulsified particles are easily broken, and when the emulsified composition is used for hair, a tendency to deteriorate the glossing effect over time is recognized. Moreover, the minimum of the average particle diameter of a hard oil phase is not specifically limited, It is suitable that it is as fine as possible. However, even if a physical emulsification particle size refining means such as a high-pressure emulsification method is used, in order to make the emulsified particle size less than 0.01 μm, the interface is generally larger than the allowable amount. The need to use an activator is recognized. Therefore, the lower limit of the particle diameter of the hard oil phase of the first emulsified composition is preferably about 0.01 μm. Furthermore, when it is desired to reduce the blending amount of the surfactant, it is preferable that the lower limit of the particle diameter of the hard oil phase is about 0.1 μm.

  The method for refining the hard oil phase is not particularly limited, but normally, fine particles of the hard oil phase having a desired size can be obtained by performing high-pressure emulsification treatment. In addition, a fine hard oil phase can be obtained by a microemulsion method or the like.

  The emulsification method is not particularly limited as long as it is a method capable of producing an oil-in-water emulsion composition. For example, after pre-emulsifying an oil phase component containing a hard surfactant with water, the emulsion particles are refined by high-pressure emulsification, etc., and dispersed by adding the refined product to the aqueous component. By making it, a 1st emulsion composition can be manufactured.

Regarding the second emulsion composition The second emulsion composition is an oil-in-water emulsion composition containing the following (d) to (f) and having an average emulsion particle size of 0.5 to 100 µm. .
(d) Surfactant and / or alkyl-modified carboxyvinyl polymer
(e) Oil
(f) Water

  As the surfactant, any of a nonionic surfactant, an amphoteric surfactant, a cationic surfactant, and an anionic surfactant can be used, but a nonionic surfactant is preferable. is there.

  Nonionic surfactants include POE sorbitan monooleate, POE sorbitan monostearate, POE sorbitan fatty acid esters such as POE sorbitan tetraoleate, POE sorbit monolaurate, POE sorbite monooleate, POE sorbite pentaoleate. POE sorbite fatty acid esters such as POE sorbite monostearate, POE glycerin fatty acid esters such as POE glycerin monostearate, POE glycerin monoisostearate, POE glycerin triisostearate, POE monooleate, POE distearate, POE dioleate , POE fatty acid esters such as ethylene glycol distearate, POE lauryl ether, POE oleyl ether, POE stearyl ether, POE behenyl ether, POE 2-octyldodecyl ether, POE POE alkyl ethers such as stanol ether, POE alkyl phenyl ethers such as POE octyl phenyl ether, POE nonyl phenyl ether, POE dinonyl phenyl ether, POE / POP cetyl ether, POE / POP 2-decyl tetradecyl ether, POE POP monobutyl ether, POE / POP hydrogenated lanolin, POE / POP glycerin ether and other POE / POP alkyl ethers, Tetronic and other tetra-POE / tetra-POP ethylenediamine condensates, POE castor oil, POE hydrogenated castor oil, POE cured Castor oil monoisostearate, POE hydrogenated castor oil triisostearate, POE hydrogenated castor oil monopyroglutamic acid monoisostearate diester, POE hydrogenated castor oil maleic acid and other POE castor oil or hydrogenated castor oil derivatives, POE sorbite beeswax POE Beeswax Lanolin Conductor, coconut oil fatty acid diethanolamide, lauric acid monoethanolamide, alkanolamides such as fatty acid isopropanolamide, POE propylene glycol fatty acid ester, POE alkylamine, POE fatty acid amide, POE nonylphenylformaldehyde condensate, alkylethoxydimethylamine oxide, trio Examples include hydrophilic nonionic surfactants such as rail phosphoric acid.

  Of these nonionic surfactants, it is particularly preferable to use a POE hydrogenated castor oil derivative.

  The content of the surfactant in the second emulsified composition is preferably 0.01 to 5% by mass, particularly preferably 0.1 to 3% by mass in the product formulation.

  An alkyl-modified carboxyvinyl polymer can also be used as an emulsifier in the second emulsified composition. The alkyl-modified carboxyvinyl polymer can be synthesized, but a commercially available product can be used. Examples of commercially available products include CARBOPOL 1342, PEMULEN TR-1, and PEMULEN TR-2 (all manufactured by B.F. Goodrich Chemical).

  The content of the alkyl-modified carboxyvinyl polymer in the second emulsified composition is preferably 0.01 to 2% by mass, and particularly preferably 0.05 to 1% by mass in the product formulation. In the second emulsified composition, the surfactant and the alkyl-modified carboxyvinyl polymer can be used separately, but can also be used in combination with each other.

  As the oil component of the second composition, a general oil component that can be used in hair cosmetics and skin cosmetics can be used in the same manner as the oil component that can be used in the first emulsified composition. That is, for example, hydrocarbon oils such as liquid paraffin and squalane, animal and vegetable oils such as mink oil, jojoba oil and avocado oil, ester oils such as cetyl isooctanoate, isopropyl myristate and isocetyl myristate, cetyl alcohol, iso Examples include higher alcohols such as stearyl alcohol and behenyl alcohol, and higher fatty acids such as stearic acid, palmitic acid, and behenic acid.

  In addition, silicone oils such as dimethylpolysiloxane, methylphenylpolysiloxane, cyclic dimethylpolysiloxane, polyether-modified silicone, amino-modified silicone, betaine-modified silicone, alkyl-modified silicone, and alkoxy-modified silicone are also included in the second emulsion composition. Listed as oil.

  Among these, silicone oil is preferably used as all or part of the oil content.

  The second emulsified composition can be prepared by using a general technique used when preparing an oil-in-water type emulsion composition. That is, the second emulsified composition can be prepared using an underwater emulsifier method, an alternate addition method, or the like.

  As described above, the second emulsified composition is an oil-in-water emulsified composition, and the emulsified particles (soft oil phase) are required to be particles having an average particle size of 0.5 to 100 μm. . When this average emulsified particle diameter is less than 0.5 μm, a tendency to give gloss immediately after use of the product is recognized, and when it exceeds 100 μm, the stability of the emulsified particles tends to be impaired.

The emulsified composition As described above, the emulsified composition is for hair, wherein the hard oil phase of the first emulsified composition and the soft oil phase of the second emulsified composition coexist in the aqueous phase. It is an emulsified composition.

  Therefore, it is possible to produce this emulsified composition by simply mixing the first emulsified composition and the second emulsified composition. Increasing the ratio of the hard oil phase in the emulsified composition results in a hair product that emphasizes the setting power, and increasing the ratio of the soft oil phase results in a hair product that emphasizes the feeling of use immediately after use. A trend is observed. Considering such a tendency, the coexistence ratio of the hard oil phase and the soft oil phase in the emulsified composition is selected, but is generally 1:10 to 10: 1 in terms of the mass ratio of the oil content in each phase. It is about (hard oil phase: soft oil phase), preferably 1: 4 to 4: 1. In addition, the ratio of the water phase to the oil phase in the emulsified composition is also selected in consideration of a specific product form, but is generally in a mass ratio of 20: 1 to 3: 1 (water phase: oil phase). )

  The emulsified composition is produced by enriching the aqueous phase component of one emulsified composition, and adding and mixing the other oil phase component in which the aqueous phase component is simplified and reduced in volume. It is preferable in terms of manufacturing efficiency. When using the production method of this aspect, a second emulsified composition containing a soft oil phase is prepared, and the water phase is simplified and reduced in quantity in the second emulsified composition. It is preferable to mix one emulsified composition because the hard oil phase in the first emulsified composition is more robust and less fragile than the soft oil phase and is easy to handle. Specifically, after preliminary emulsification, an emulsion composition mainly composed of a hard oil phase prepared by applying a fine emulsification method such as high-pressure emulsification may be mixed with a separately prepared second emulsion composition. Is preferred.

  In addition to the essential components described above, the emulsified composition may contain general components commonly used in hair cosmetics and skin cosmetics as necessary. That is, a thickener, a fragrance | flavor, an antiseptic | preservative, a polyhydric alcohol, a ultraviolet-ray shielding agent, antioxidant, various medicinal components, etc. can be mix | blended. Among these general components, the oily component can be included in the hard oil phase and / or the soft oil phase as necessary. Moreover, about this aqueous component, this emulsion composition is manufactured by making it include in the water phase of both the 1st emulsion composition and the 2nd emulsion composition, or the water phase of either emulsion composition. However, as mentioned above, it is often efficient to include mainly in the aqueous phase of the second emulsified composition.

  When this emulsified composition is used for hair, immediately after use, the oil phase component in the soft oil phase is released, and moisturizes and imparts moisture to the hair immediately after use. By gradually releasing the oil phase component in the hard oil phase, it becomes possible to set the hair while giving the moisture and gloss immediately after use to the hair.

  This emulsified composition is an emulsified composition for hair. For example, any commercially available hair cosmetic such as liquid, gel, cream, emulsion, aerosol mist, aerosol foam, etc. It can be a dosage form.

  According to the present invention, there are provided an emulsified composition for hair that provides moisture and gloss to hair, and an emulsified composition for hair that can be set immediately after use or over time.

EXAMPLES Hereinafter, although the best form is demonstrated about this invention using an Example, this does not limit the scope of the present invention. In the description of the following examples, “A part” corresponds to the first emulsified composition and “B part” corresponds to the second emulsified composition.

[Test example]
Evaluation of this invention was performed in the prescription of following Table 1-1. The numbers indicating the blending amounts in these tables are% by mass.

<Manufacturing method>
Test Example 1 : (Part A) 7, 8, 9 and a part of 1 are dissolved at 70 ° C. This and 10 are mixed and a high-pressure emulsification process is performed. (Part B) 3 is dissolved in a part of 1 and added to 2 in which 5 and 6 are dissolved and mixed. Add 12 which is dissolved here and emulsified part 1, part 8 and 11 and then add 4 to increase viscosity. Here, part A is added and mixed.

Test Example 2 : (Part A) 7, 8, 9 and part of 1 are dissolved at 70 ° C. This and 10 are mixed and a high-pressure emulsification process is performed. (Part B) 3 and 13 are dissolved in 1 and added to 2 in which 5 and 6 are dissolved and mixed. Add 11 here and emulsify, add 4 and thicken. Here, part A is added and mixed.

Comparative Example 1 : (Part A) 7, 8, 9 and a part of 1 are dissolved at 70 ° C. This and 10 are mixed and a high-pressure emulsification process is performed. (Part B) 3 is dissolved in 1, added to 2 in which 5 and 6 are dissolved, mixed, and further 4 is added to increase the viscosity. Here, part A is added and mixed.

Comparative example 2 : 3 is dissolved in 1, and 5 and 6 are dissolved in 2 and mixed. In addition, add 7 and 8. Add 12 which is dissolved here and emulsified part of 8 and 10, 11 and then add 4 to increase the viscosity .

Comparative Example 3 : 3 and 13 are dissolved in 1, and 5 and 6 are dissolved in 2 and mixed. In addition, add 7 and 8. 10 and 11 are added and emulsified, and 4 is added and thickened.

Test Method Apply 5g each of the above 3 types of test products to the hair of 16 panels (8 men and 8 women). 1) Gloss, lightness and oiliness immediately after application. 2) Gloss and lightness immediately after application / combing 3) Evaluation of actual use was performed for gloss and lightness 4 hours after application / combing.

(Evaluation methods)
Shine ◎: 13 or more people evaluated as glossy ○: 11-12 people evaluated as shiny ○ △: 7-10 people evaluated as shiny △: 5-6 people evaluated as shiny × : Less than 4 people are evaluated as shiny
Light ◎: Evaluated if 13 or more people are light ○ ○: Evaluated if 11-12 people are light ○ △: Evaluated if 7-10 people are light △: 5-6 people are light Evaluated if there is x: Evaluated if 4 or less people are light
Oily name of ◎: evaluation with 13 or more people is not greasy ○: 11~12 people evaluation ○ △ and is not greasy: evaluation with 7-10 people is not greasy △: 5~6 people Evaluated as not oily ×: Evaluated as 4 or less were not oily

Results The results of this test are shown in Table 2.

  According to Table 2, the products of the present invention (Test Examples 1 and 2) maintain the same evaluation in oiliness and lightness even when compared with Comparative Example 1 in which only the hard oil phase is the oil phase. Furthermore, the gloss immediately after application was excellent, and the same level of gloss was maintained after combing. It was also found that the excellent state was maintained even after 4 hours.

  Further, even when compared with Comparative Examples 2 and 3 in which only the soft oil phase is used as an oil phase, the gloss after combing is extremely excellent. It was found to be better than 3.

  In this test, the product of the present invention was found to be excellent in usability immediately after use and over time.

  Hereinafter, although the formulation example of this invention is enumerated as an Example, all the hair cosmetics of these formulation examples showed the usability | use_condition immediately after use and the passage of time which are equal to or more than this invention product in the said test.

[Example 1] Foam composition
Compounding component amount (% by mass)
1. Dimethylpolysiloxane (20 mPa · s) 5.0
2. Highly polymerized dimethylpolysiloxane (degree of polymerization 8000, volatile isoparaffin solution 20%) 10.0
3. Ethanol 5.0
4). Concentrated glycerin 2.0
5. Propylene glycol 3.0
6). Dipropylene glycol 1.5
7). POE (60) hydrogenated castor oil 1.0
8). Sucrose monostearate 1.0
9. POE (20) cetyl ether 0.2
Ten. Methylparaben 0.2
11． Hydrolyzed oat protein solution 0.1
12． Octyl methoxycinnamate 0.1
13. Perfume
14. Ion exchange water

<Manufacturing method>
(Part A) 1, 4, 6, 8 and a part of 14 were dissolved by heating, and an emulsion having an average emulsion particle size of 0.1 μm was obtained by high-pressure emulsification treatment.
(Part B) 2, 5, 7 (heat-dissolved), 9, 12, and an appropriate amount of 14 were mixed with a homomixer to obtain an emulsion having an average emulsion particle size of 5 μm.
When 14 was added to 11, 10 and 13 were dissolved in 3 and added. After adding B part here, A part was further added and mixed.
The container was filled at a ratio of 10 parts of LPG (0.43 MPa 20 ° C.) with respect to 90 parts of the stock solution thus prepared to obtain a foamed emulsion composition for hair.

[Example 2] Creamy composition
Compounding component amount (% by mass)
1. Dimethylpolysiloxane (20 mPa · s) 5.0
2. Highly polymerized dimethylpolysiloxane (degree of polymerization 10,000, volatile isoparaffin solution 20%) 8.0
3. Ethanol 15.0
4). Concentrated glycerin 1.0
5. 1,3-butylene glycol 3.0
6). Dipropylene glycol 1.0
7). POE (100) hydrogenated castor oil 1.0
8). Sucrose monooleate 0.5
9. Carboxyvinyl polymer 0.5
Ten. Methylparaben 0.2
11． Appropriate amount of dye
12． Aminomethylpropanol
13. Perfume
14. Ion exchange water

<Manufacturing method>
(Part A) Part 1, 4, 6, 8, and part 14 were dissolved by heating, and an emulsion having an average emulsion particle size of 0.05 μm was obtained by high-pressure emulsification treatment.
(Part B) 1, 2, 5, 7 (heat-dissolved), 9, 12, and an appropriate amount of 14 were mixed with a homomixer to obtain an emulsion having an average emulsion particle size of 2.5 μm.
9 was dissolved, 11 was added to 14, and 10 and 13 were dissolved and added to 3. After adding B part here, A part was added and mixed. Next, 12 was added to increase the viscosity, and a creamy emulsified composition for hair was obtained.

[Example 3] Creamy composition
Compounding component amount (% by mass)
1. Dimethylpolysiloxane (20 mPa · s) 8.0
2. High molecular weight aminopropyl dimethicone (molecular weight about 1 million, dimethylpolysiloxane solution 10%) 1.0
3. Ethanol 10.0
4). Concentrated glycerin 1.0
5. 1,3-butylene glycol 1.5
6). Dipropylene glycol 1.5
7). Sucrose monostearate 0.8
8). Alkyl-modified carboxyvinyl polymer 0.2
9. Carboxyvinyl polymer 0.5
Ten. Phenoxyethanol 0.2
11． Royal jelly extract 0.2
12． Aminomethylpropanol
13. Perfume
14. Ion exchange water

<Manufacturing method>
(Part A) Part 1, 4, 6, 7, and part 14 were dissolved by heating, and an emulsion having an average emulsion particle size of 0.08 μm was obtained by high-pressure emulsification treatment.
(Part B) 11 was added to 14 in which 8 and 9 were dissolved, and 1, 2 and 5 were added, followed by mixing with a homomixer to obtain an emulsion having an average emulsion particle size of 30 μm. 10, 13 and A parts in which 3 was dissolved were added and mixed, and 12 was added to increase the viscosity to obtain a creamy emulsified composition for hair.

[Example 4] Foam composition
Compounding component amount (% by mass)
1. Liquid paraffin 3.0
2. Volatile isoparaffin 2.0
3. Highly polymerized dimethylpolysiloxane (degree of polymerization 10000) 2.0
4). Oleic acid 2.0
5. 2-Undecyl-N, N, N- (hydroxyethylcarboxymethyl)
-2-Imidazoline sodium 3.0
6). Ethanol 10.0
7). Concentrated glycerin 1.0
8). Propylene glycol 1.5
9. Dipropylene glycol 1.5
Ten. Sucrose monostearate 0.8
11． Phenoxyethanol 0.2
12． Perfume
13. Ion exchange water

<Manufacturing method>
(Part A) 1, 7, 9, 10 and a part of 13 were dissolved by heating, and an emulsion having an average emulsion particle size of 0.05 μm was obtained by high-pressure emulsification treatment.
(Part B) 2, 3 and 4 were mixed, added to a part of 5, 8, and 13 and emulsified to obtain an emulsion having an average emulsified particle size of 5 μm.
Part B was added to 13, and parts 11 and 12 dissolved in 6 were added, and part A was added to the mixture.
The container was filled in a ratio of 8 parts of LPG (0.39 MPa 20 ° C.) with respect to 92 parts of the stock solution thus prepared to obtain a foam-like emulsified composition for hair.

Claims (5)

An emulsified composition for hair, which is an oil-in-water emulsified composition and contains the following two oil phases as an oil phase.
[First oil phase] An oil phase according to the following (1) to (4) .
(1) The surfactant constituting the oil phase is substantially composed of sucrose fatty acid ester which is solid at normal temperature and has a Kraft point of 40 ° C. or higher. It is 0.5-6 mass% in the inside.
(2) oil contained in an oil phase, a hydrocarbon oil, animal and vegetable oils, ester oils, higher alcohols, higher fatty acids, and is one or more oils selected from the group consisting of silicone oil, and further, The blending amount of the oil is 10 times (mass ratio) or less with respect to the sucrose fatty acid ester of (1), and is 3% by mass or more of the whole composition .
(3) The average particle size is 0.5 μm or less.
(4) An oil phase emulsified by a high pressure emulsification method.
[Second Oil Phase] An average particle size of 0.5 to 100 μm formed by containing a surfactant and / or an alkyl-modified carboxyvinyl polymer and an oil component that can be used in the first oil phase. Oil phase. The emulsion composition for hair according to claim 1, wherein the surfactant and / or the alkyl-modified carboxyvinyl polymer used in the second oil phase in the emulsion composition for hair is a nonionic surfactant. In the hair emulsified composition, the coexistence ratio of the first oil phase and the second oil phase is 1:10 to 10: 1 (first oil phase: second oil phase (mass ratio)). The emulsified composition for hair according to claim 1 or 2. The hair according to any one of claims 1 to 3, wherein in the emulsified composition for hair, the ratio of the water phase to the oil phase is 20: 1 to 3: 1 (water phase: oil phase (mass ratio)). Emulsified composition. By mixing the oil-in-water emulsion composition containing the first oil phase emulsified by the high-pressure emulsification method and the oil-in-water emulsion composition containing the second oil phase, the first oil phase is mixed. The method for producing an emulsified composition for hair according to any one of claims 1 to 4, wherein the oil phase and the second oil phase are allowed to coexist in the aqueous phase.