JPH10218739A - Hair cosmetic - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a hair cosmetic which imparts smooth touch to the hair without causing flaking while assuring non-sticky feel when used. SOLUTION: This hair cosmetic is obtained by adding a hydrophilic nonionic surfactant to a water-soluble solvent and then an oil phase to the mixture to prepare an emulsion in water-soluble solvent as the first step, and as the second step, an oil-in-water type emulsion obtained by adding water to an emulsion and a high polymeric thickening agent are blended with the emulsion prepared in the first step.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hair cosmetic composition which imparts a smooth feel to hair while having non-stickiness and has no flaking.

[0002]

2. Description of the Related Art Conventionally, a hair thickening agent has been blended with a polymer thickener in order to realize usability with less dripping. However, hair cosmetics containing these thickeners maintain a stable viscosity.Thus, the viscosity increases when the amount of the thickener added increases, but the disintegration of the thickener film is caused by slight physical irritation. When this occurs, the flaking phenomenon (a phenomenon in which the film becomes white powder when the film disintegrates) is particularly noticeable.

[0003] In addition, cosmetics for hair are blended with an oil component for imparting smoothness, moistness and luster. In this case, the oil component is mostly formulated as an oil-in-water emulsion. However, when the polymer thickener and the oil component are blended together, an interaction occurs and the characteristics of the polymer thickener are reduced. That is, the viscosity is reduced as compared with the case where no oil is blended. Further, in order to solve this problem, there is a problem that a continuous problem of increasing the flaking phenomenon occurs when a further thickener is added.

On the other hand, as a first step, the applicant of the present invention added a hydrophilic nonionic surfactant to a water-soluble solvent, and then added an oil phase thereto to prepare an oil-in-water-soluble emulsion, As a second step, the oil-in-water emulsion obtained by adding water to the emulsion has already been found to be very stable (Japanese Patent Publication No. 57-29).
213).

[0005]

Means for Solving the Problems The present inventors have conducted intensive studies in view of such conventional circumstances. As a result, it has been found that by combining an oil-in-water emulsion obtained by a specific emulsification method and a polymer thickener, a hair cosmetic that can reduce the flaking phenomenon due to the blending of the thickener can be obtained. . In addition, it has been found that this is a hair cosmetic with very little stickiness during and after application. Based on this finding, the present invention has been completed.

That is, according to the present invention, as a first step, a hydrophilic nonionic surfactant is added to a water-soluble solvent, and then an oil phase is added thereto to prepare an emulsion in a water-soluble solvent.
As the second step, an oil-in-water emulsion obtained by adding water to the emulsion, and one or more polymer thickeners
It is a cosmetic for hair characterized by containing more than one kind.

Further, the production method comprises a first step of adding a hydrophilic nonionic surfactant to a water-soluble solvent, and then adding an oil phase thereto to prepare an emulsion in a water-soluble solvent; A second step of adding water to the emulsion to form an oil-in-water emulsion, and a third step of adding a polymer thickener dissolved in water and / or a lower alcohol to the oil-in-water emulsion. It is characterized by having.

Next, the configuration of the present invention will be described in detail. Oil-in-water emulsion used in the present invention, for example, after dissolving a hydrophilic nonionic surfactant obtained by addition polymerization of 15 mol or more of ethylene oxide in a water-soluble solvent, an oil phase is added, and the surface tension is small. It is an oil-in-water emulsion obtained by an emulsification method in which a hydrophilic nonionic surfactant is efficiently oriented at an interface by using water, and then the water phase is substituted for a water-soluble solvent by gradually adding water. .

The general characteristics of the surfactant used in the present invention to obtain a stable emulsion are as follows:
15 to 120 mol of ethylene oxide added to a lipophilic group having 8 to 30 carbon atoms, or ethylene oxide (15 mol or more) and propylene oxide (1 to 3 mol)
(0 mol). Since all of these hydrophilic nonionic surfactants are high molecular weight substances, it is impossible to use them suddenly in an oil-water system to obtain a stable emulsion having a strong interface film, but it is impossible. As a first step, a method in which a surfactant is added to a water-soluble solvent and then an oil phase is added can efficiently orient a surfactant at an interface, and then a stable emulsion is produced by adding an aqueous phase. Is what you can do.

Next, the hydrophilic nonionic activators used in the present invention are classified into types (I) to (IX) and will be specifically described. Type (I):

[0011]

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Wherein R represents an alkane, alkene, aryl or steroid group having 8 or more carbon atoms, X represents an ether or ester group, and n represents an integer of 15 to 120. In the type (I) Particularly preferred as the hydrophilic nonionic surfactant in the present invention are lanolin and their fatty acids and ethylene oxides of alcohols 15 to 80.
A molar adduct and a 15-60 molar adduct of ethylene oxide of cholestanol or cholesterol. Type (II):

[0013]

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(Wherein, R represents an alkane, alkene, aryl, or steroid group having 8 or more carbon atoms, X represents an ether or ester group, n represents an integer of 20 or more, X ′ represents an ester group, and R ′ represents a carbon atom. Alkanes and alkene groups of formulas 2 to 18 are shown.) Among the type (II), particularly preferred as the hydrophilic nonionic surfactant in the present invention are lanolin and their fatty acids and ethylene oxides of alcohols 20 to 80.
2-ethylhexanoic acid or isostearic acid ester of a molar adduct and 2-ethylenehexanoic acid and isostearic acid ester of a 15-60 mol adduct of cholesteranol or cholesterol ethylene oxide. Type (III):

[0015]

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Wherein R represents an alkane, alkene, aryl or steroid group having 8 or more carbon atoms, X represents an ether or ester group, n represents an integer of 1 to 30, and n ′ represents 15
The following integers are shown. Among the types (III), particularly preferred as the hydrophilic nonionic surfactant in the present invention are propylene oxide 1 of cetanol, cholestanol and cholesterol.
１２12 mol adduct, and ethylene oxide 20８8
0 mol was added. Type (IV):

[0017]

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(Wherein, R represents an alkane, alkene, aryl, or steroid group having 8 or more carbon atoms, X represents an ether or ester group, R ′ represents an alkane having 2 to 18 carbon atoms,
Shows an alkene group. Among the types (IV), particularly preferred as the hydrophilic nonionic surfactant in the present invention are propylene oxide 1 to cetanol, cholestanol and cholesterol.
2-ethylhexanoic acid or isostearic acid ester of a compound of type (III) obtained by adding 20 to 80 mol of ethylene oxide to a 12 mol adduct. Type (V):

[0019]

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(Wherein, R represents an alkane having 8 or more carbon atoms, an alkene, ethylene glycol of a hydroxycarboxylic acid,
Propylene glycol, glycerin, trimethylolethane, trimethylolpropane, sorbitol, sorbitan, pentaerythritol ester residues, n is an integer of 4 to 50, n 'is an integer of 2 to 6, nx
n ′ is 30 or more in any combination. Among the types (V), particularly preferred as the hydrophilic nonionic surfactant in the present invention are 30-80 mol of ethylene oxide adduct of castor oil and hydrogenated castor oil. Type (VI):

[0021]

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Wherein R is an alkane having 8 or more carbon atoms, an alkene, an ethylene glycol of a hydroxycarboxylic acid,
Propylene glycol, glycerin, trimethylolethane, trimethylolpropane, sorbitol, sorbitan, an ester residue of pentaerythritol, n is an integer of 4 to 50, n 'is an integer of 2 to 6, X' is an ester R ′ represents an alkane or alkene group having 2 to 18 carbon atoms. Among the types (VI), particularly preferred as the hydrophilic nonionic surfactant in the present invention are 2- Castane oil and 30-80 mol adduct of ethylene oxide of hydrogenated castor oil.
Ethylhexanoic acid or isostearic acid ester. Type (VII):

[0023]

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(Wherein, R represents an alkane having 8 or more carbon atoms, alkene, ethylene glycol of hydroxycarboxylic acid,
The ester residues of propylene glycol, glycerin, trimethylolethane, trimethylolpropane, sorbitol, sorbitan, and pentaerythrit are shown, n is an integer of 1 to 30, n 'is an integer of 4 to 50, and n "is 2
And n ′ × n ″ is 30 or more in any combination.) Among types (VII), particularly preferred as the hydrophilic nonionic surfactant in the present invention are castor oil and castor oil. To 1 to 12 moles of propylene oxide adduct of hydrogenated castor oil,
Further, 30 to 80 mol of ethylene oxide is added. Type (VIII):

[0025]

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(Wherein R represents an alkane or alkene group having 8 or more carbon atoms, X represents an ether or ester group,
Is glycerin having 3 to 6 carbon atoms, trimethylolethane,
Trimethylolpropane, sorbitol, sorbitan,
A pentaerythritol residue, n is an integer of 10 to 50,
n ′ represents an integer of 2 to 5, and n × n ′ is 30 or more in any combination. Of the type (VIII), particularly preferred as the hydrophilic nonionic surfactant in the present invention are 20 to 100 moles of ethylene oxide adduct of oleic acid monoglyceride and stearyl glyceryl ether (batyl alcohol). Type (IX):

[0027]

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(Wherein R represents an alkane or alkene group having 8 or more carbon atoms, X represents an ether or ester group,
Is glycerin having 3 to 6 carbon atoms, trimethylolethane,
Trimethylolpropane, sorbitol, sorbitan,
A pentaerythritol residue, n is an integer of 1 to 10,
n ′ represents an integer of 10 to 50, n ″ represents an integer of 2 to 5, and n ′ × n ″ is 30 or more in any combination. Among the types (IX), particularly preferred as the hydrophilic nonionic surfactant in the present invention are oleic acid monoglyceride or propylene oxide 1 of batyl alcohol.
１２12 mol adduct, and ethylene oxide 20８8
0 mol was added.

It should be noted that only one of the above-mentioned hydrophilic nonionic surfactants may be selected and used, or if necessary, two or more kinds may be used in combination. The compounding amount of the hydrophilic nonionic surfactant is 0.1% in the total amount of the hair cosmetic.
0.1 to 10.0% by weight, preferably 0.1 to 5.
0% by weight.

The water-soluble solvent has the effect of dissolving the above-mentioned hydrophilic nonionic surfactant and efficiently orienting it at the interface with the oil phase to be added thereafter. Lower polyhydric alcohols, ketones, aldehydes, ethers, amines, lower fatty acids, and other substances that are hydrophilic and dissolve the above surfactant can be freely selected from a very wide range of substances. it can.

Specific examples of the water-soluble solvent include alcohols such as methanol, ethanol, propanol, isopropanol and benzyl alcohol, glycerin, ethylene glycol, diethylene glycol, triethylene glycol, hexanediol 2.5 and 2.3.
Polyhydric alcohols (molecular weight 60 to 2000) such as butylene glycol, heptanediol, 2.4 hexylene glycol, 1.5 pentanediol, 1.4 butanediol, propylene glycol, 1.3 butylene glycol, dipropylene glycol, and acetone , Acetonylacetone, ketones such as diacetone alcohol, formaldehyde, aldehydes such as acetaldehyde, ethylene oxide, dioxane, ethylene glycol monomethyl ether, ethylene glycol monoethyl ether,
Ethylene glycol monopropyl ether, ethylene glycol monoisopropyl ether, ethylene glycol monobutyl ether, ethylene glycol monoisobutyl ether, diethylene glycol monomethyl ether, ethylene glycol monopropyl ether (monoisopropyl ether), dimethylene glycol monoethyl ether, dimethylene glycol monomethyl ether , Dimethylene glycol monobutyl ether, dimethylene glycol diethyl ether, ethoxy triglycol, monopropylene glycol methyl ether, dipropylene glycol methyl ether, tripropylene glycol monomethyl ether, ethylene glycol monomethyl ether acetate, diethylene glycol monomethyl ether acetate, acetic acid Ethers such as ethylene glycol monoethyl ether, monoethanolamine, diethanolamine, triethanolamine, positive butylamine, ethylenediamine, propylenediamine, ethylamine, pyridine, amines such as cyclohexylamine,
Formic acid, acetic acid, butyric acid, lower fatty acids such as lactic acid, etc., are selected from methoxyglycol acetate, methyl lactate, ethyl lactate, acetonitrile, tetrahydrofuran, furfuryl alcohol and the like. One type may be used, and in some cases, the solubility of the surfactant can be freely changed by mixing two or more types of water-soluble solvents, which is very convenient. The compounding amount of the water-soluble solvent is 0.1 to 30.0% by weight, preferably 1.0 to 15.0% by weight, based on the total amount of the cosmetic for hair.

With respect to the oil content, almost all commonly used oil classifications from non-polar oils to polar oils such as silicone oils, hydrocarbon oils and ester oils can be emulsified. Specific examples include silicone oils such as dimethylpolysiloxane, methylphenylpolysiloxane, diphenylpolysiloxane, and methylhydrogenpolysiloxane, liquid paraffin, squalane, terpene-based hydrocarbons, other synthetic hydrocarbon oils, and linear oils. Or branched alcohol esters of linear or branched fatty acids such as glycerin esters of branched fatty acids, for example glyceryl-tri-2-ethylhexanoate, glyceryl-tri-isostearate, for example trimethylolpropane-tri-2-ethylhexano Ester, pentaerythritol-tetra-2-ethylhexanoate, and other ester oils such as 2-ethylhexylic acid ester of glycerin-sorbitan condensate and hexadecyl adipate. One of these oils may be selected and used, or two or more may be used in combination as needed. The amount of the oil component is 0.1 to 30.0% by weight, preferably 1.0 to 15.0% by weight, based on the total amount of the cosmetic for hair.

Regarding the quantitative relationship of the oil-in-water emulsion in the present invention, first, the composition of the oil-in-water emulsion in the first stage in the water-soluble solvent is 1 to 90 parts oil, 1 to 90 parts of the water-soluble solvent.
Parts, hydrophilic nonionic surfactant in the range of 0.2 to 10 parts. Next, in the second stage, the emulsions 5-95
In this case, a stable oil-in-water emulsion is prepared by diluting a part with 95 to 5 parts of an aqueous phase component. The details of the method for producing an oil-in-water emulsion are described in JP-B-57-292.
No. 13 has been described.

The polymer thickener in the present invention includes a cationic polymer thickener, an anionic polymer thickener, and a nonionic polymer thickener. Two or more kinds can be selected and blended. The compounding amount of the polymer thickener is 0.1 to 10% in the total amount of the cosmetic for hair.
0% by weight, and preferably 1.0 to 5.0% by weight.

Examples of the cationic polymer thickener include vinylpyrrolidone / N, N'-dimethylaminoethyl methacrylate / stearyl acrylate / tripropylene glycol diacrylate copolymer (JP-A-6-19992).
No. 1).

Examples of the anionic polymer thickener include carboxyvinyl polymer, which is a compound obtained by crosslinking polyacrylic acid with allyl sucrose [Hibiswako 105, Hibiswako 104, Hibiswako 103 (Wako Pure Chemical Industries, Ltd.) ), Cellulose carboxymethylcellulose sodium [a commercially available product such as cellogen WS-A (manufactured by Daiichi Kogyo Seiyaku Co., Ltd.)], and xanthan gum, a polysaccharide produced by bacteria [a commercial product] As Celtrol, Celtrol T (Ke
lco) and carrageenan which is a polysaccharide extracted from red algae [Aquagel I-
2 (manufactured by Nitta Gelatin Co., Ltd.).

As the nonionic polymer thickener, for example, methylcellulose which is a cellulose derivative [a commercially available product is Metroose 65-SH4000 (manufactured by Shin-Etsu Chemical Co., Ltd.)
And hydroxyethylcellulose [a commercially available product includes Natrosol 250HR (manufactured by Hercules) and the like].

The cosmetic for hair of the present invention is produced by adding the above-mentioned polymer thickener dissolved in water and / or a lower alcohol such as ethanol or propanol to the above oil-in-water emulsion. be able to. The amount of water or lower alcohol used is usually 1: 1 to 1: 1000 with respect to the polymer thickener.

The dosage form of the present invention is optional, and various additives can be added to make a hair gel, a hair cream, a hair lotion, a hair mist (non-gas type) and the like.

Further, an aerosol can be formed by pressurizing and sealing with a propellant. As the propellant, a liquefied petroleum gas (LPG) containing propane, butane, and isobutane as a main component, dimethyl ether, a compressed gas such as carbon dioxide, nitrogen gas, or the like, or a mixture thereof is used. Can be. Of these, liquefied petroleum gas (LPG) is particularly preferred. The mixing ratio of the stock solution containing the oil-in-water emulsion, the polymer thickener and the propellant is preferably 95 to 5 parts by weight of the propellant to 5 to 95 parts by weight of the stock solution.

[0041]

The present invention will be described below in more detail with reference to Examples and Comparative Examples. The present invention is not limited by this. All amounts are by weight.

Examples 1 to 3 and Comparative Examples 1 to 3 Hair gels were prepared according to the formulation shown in Table 1. The manufacturing method is as follows.

Production methods of Examples 1 to 3 (2) was dissolved in (1), and then homomixer treatment was carried out while gradually adding (3) and (10) at room temperature to emulsify. . An oil-in-water emulsion was obtained by adding a part of (8) to the obtained oil-in-water solvent emulsion. The remaining (8) and (7) in which (4), (5) or (6) was dissolved was added to this oil-in-water emulsion, and if necessary, (9) was added to obtain a hair gel.

The production methods (1) and (2) of Comparative Examples 1 to 3 were dissolved in a part of the heated (8). While gradually adding the heated (3) and (10), the mixture was homogenized and emulsified. The obtained oil-in-water emulsion is returned to room temperature, and the remaining (8) and (7) in which (4) or (5) or (6) is dissolved, and if necessary, (9) is added; I got a hair gel.

The obtained gel has (1) smoothness, (2)
No flaking, (3) stickiness after application,
(4) Table 1 also shows the results of evaluating the viscosity stability.
In addition, each evaluation method is as follows. (1) Smoothness Each sample was asked to be used by 50 specialized panelists, and the smoothness after coating and drying was sensory-evaluated. (2) No flaking A sample of 50 professional panelists used each sample, and after applying and drying, a hand glove was used to evaluate the presence or absence of the flaking phenomenon. (3) Stickiness at the time of application Fifty professional panelists used each sample and had sensory evaluation of the non-stickiness at the time of application. (4) Viscosity stability The viscosity stability when the example and the comparative example were compared was evaluated.

For each of the above items (1) to (4), when the number of panels felt to be excellent is 1 to 20, x 21 to 4
When the number was 0, the evaluation was ○ for 41 to 45 persons, and the evaluation was ◎ for 46 to 50 persons.

[0047]

[Table 1] ─────────────────────────────────── Examples Comparative examples Compounding ingredients ─── ───── ２ 1 2 3 1 2 3 ────────────────────────────── ───── (1) Propylene glycol 3.0 3.0 3.0 3.0 3.0 3.0 (2) Hydrogenated castor oil derivative (100E.O.) 2.0 2.0 2.0 2.0 2.0 2.0 (3) Dimethylpolysiloxane (10cs) 5.0 5.0 5.0 5.0 5.0 5.0 (4) Cationic thickener ^{* 1)} 1.0 − − 1.0 − − (5) Anionic thickener ^{* 2)} − 1.0 − − 1.0 − (6) Nonionic thickener ^{* 3)} − − 1.0 − − 1.0 (7) Ethanol 10.0 10.0 10.0 10.0 10.0 10.0 10.0 (8) Ion-exchanged water 79.0 79.0 79.0 79.0 79.0 79.0 (9) Neutralizer proper amount proper amount-proper amount proper amount-(10) Flavor proper amount proper amount proper amount proper amount proper amount proper amount ───── ──────────────────────────滑 ら か Smoothness ◎ ◎ ○ △ △ × No flaking ◎ ○ ○ △ × × Non-stickiness during coating ◎ ○ ○ △ × × Viscosity stability ◎ ◎ ◎ △ △ △ △ ───────────────────────────

* 1) Cationic thickener: vinylpyrrolidone / N, N'-dimethylaminoethyl methacrylate / stearyl acrylate / tripropylene glycol diacrylate copolymer * 2) Anionic thickener: carboxyvinyl polymer * 3) Nonionic thickener: methylcellulose

Examples 4 to 6 Hair lotions were prepared according to the formulation shown in Table 2.

[0050]

[Table 2] {Example No. 4 5 6}プ ロ ピ レ ン Propylene glycol 3.0 3.0 3.0 Hydrogenated castor oil derivative (100E.O.) 2.0 2.0 2.0 Methylphenyl polysiloxane 7.0 7.0 7.0 Liquid paraffin 7.0 7.0 7.0 Cationic thickener ^{* 4)} 0.5--Anionic thickener ^{* 5)} -0.5-Nonionic thickener ^{* 6)} --0.5 Ethanol 20.0 20.0 20.0 Deionized water 40.5 40.5 40.5 Neutralizer Suitable amount Suitable amount-Fragrance Appropriate amount Appropriate amount Appropriate amount Protein derivative Appropriate amount Appropriate amount Appropriate amount ──────────────────────────────

* 4) Cationic thickener: cationized cellulose * 5) Anionic thickener: sodium carboxymethylcellulose * 6) Nonionic thickener: hydroxyethylcellulose

Examples 7 to 9 Hair mousses were prepared according to the formulation shown in Table 3.

[0053]

[Table 3] {Example No. 7 8 9} ────────────────────────── Polyethylene glycol 3.0 3.0 3.0 Polyoxyethylene lauryl ether (12E.O.) 1.0 1.0 1.0 Diphenylpolysiloxane 5.0 5.0 5.0 Cationic thickener ^{* 7)} 0.2--Anionic thickener ^{* 8)} -0.2-Nonionic thickener ^{* 9)} --0.2 Polyvinylpyrrolidone / vinyl acetate copolymer 4.0 4.0 4.0 Ethanol 10.0 10.0 10.0 ions Exchanged water 66.7 66.7 66.7 Neutralizer Suitable amount Suitable amount-L. P. G (40) 10.0 10.0 10.0 Fragrance Appropriate amount Appropriate amount Appropriate amount Plant extract Appropriate amount Appropriate amount Appropriate amount ─────────────────────────────────

* 7) Cationic thickener: vinylpyrrolidone / N, N'-dimethylaminoethyl methacrylate / stearyl acrylate / tripropylene glycol diacrylate copolymer * 8) Anionic thickener: xanthan gum * 9 ) Nonionic thickener: hydroxyethyl cellulose

Examples 10 to 12 Hair mist was prepared according to the formulation shown in Table 4.

[0056]

[Table 4] {Example No. 10 11 12} ──────────────────────────── Dipropylene glycol 2.0 2.0 2.0 Hydrogenated castor oil derivative (100E.O.) 1.0 1.0 1.0 Dimethyl polysiloxane 3.0 3.0 3.0 Cationic thickener ^{* 10)} 0.05--Anionic thickener ^{* 11)} -0.05-Nonionic thickener ^{* 12)} --0.05 Polyvinylpyrrolidone / vinyl acetate copolymer 2.0 2.0 2.0 Ethanol 20.0 20.0 20.0 Ion-exchanged water 71.95 71.95 71.95 Neutralizer proper amount proper amount-flavor proper amount proper amount proper amount proper amount UV absorber proper amount proper amount proper amount antistatic agent proper amount proper amount proper amount ───────────────────── ─────────────

* 10) Cationic thickener: vinylpyrrolidone / N, N'-dimethylaminoethyl methacrylate / stearyl acrylate / tripropylene glycol diacrylate copolymer * 11) Anionic thickener: carboxyvinyl polymer * 12) Nonionic thickener: methylcellulose

[0058]

As described above, the hair cosmetic composition of the present invention imparts a smooth feel after application, has no flaking, and has less sticky feeling in the application process.

Claims (5)

[Claims] 1. As a first step, a hydrophilic nonionic surfactant is added to a water-soluble solvent, and then an oil phase is added thereto to prepare an emulsion in a water-soluble solvent. A hair cosmetic comprising: an oil-in-water emulsion obtained by adding water to water; and one or more polymer thickeners. 2. The hair cosmetic according to claim 1, wherein the polymer thickener is an anionic polymer thickener. 3. The hair cosmetic according to claim 1, wherein the polymer thickener is a nonionic polymer thickener. 4. The hair cosmetic according to claim 1, wherein the polymer thickener is a cationic polymer thickener. 5. The method for producing a hair cosmetic according to claim 1, wherein a hydrophilic nonionic surfactant is added to a water-soluble solvent, and then an oil phase is added thereto. A first step of preparing an emulsion in a water-soluble solvent by adding water, a second step of adding water to the emulsion to form an oil-in-water emulsion, and adding water and / or water to the oil-in-water emulsion.
Or a third step of adding a polymer thickener dissolved in a lower alcohol, the method comprising the steps of: