JP2009191017A - Emulsified hair cosmetic - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an emulsified hair cosmetic that is excellent in setting force (hair-dressing force), a moisture feeling and stability, is free from a sticking feeling and exhibits excellent hair-redressing force. <P>SOLUTION: The emulsified hair cosmetic comprises (a) a polyhydric alcohol, (b) a hydrophilic nonionic surfactant, (c) an amphoteric surfactant and/or a semipolar surfactant, (d) a higher fatty acid, and (e) a high-molecular weight silicone, and if required, (f) a silicone surfactant [for example, poly(oxyethylene, oxypropylene)methylpolysiloxane copolymer and the like], (g) a hair-dressing resin, and the like. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to an emulsified hair cosmetic. More specifically, the present invention relates to an emulsified hair cosmetic composition that is excellent in setting power (hair styling power), moisture feeling and stability, has no stickiness, and has excellent hair styling power.

  Conventionally, various silicones and high molecular weight silicones with various degrees of polymerization have been used for general purposes in order to give the hair gloss and smoothness. For example, high molecular weight silicone (silicone gum) having a polymerization degree of 3,000 or more has a film-forming property, is excellent in setting power, and can impart smoothness and luster to hair, and thus has been widely used as a hair treatment agent in recent years. ing. For example, Japanese Patent Application Laid-Open No. 63-183517 (Patent Document 1) describes a hair cosmetic containing a high molecular weight silicone having a degree of polymerization of 3,000 to 20,000. It describes that a mixture of an agent and a water-soluble polyhydric alcohol and an oil phase are mixed and emulsified. Japanese Patent Application Laid-Open No. 1-139522 (Patent Document 2) describes a hair treatment agent containing dimethyl silicone gum (high molecular weight silicone) having a polymerization degree of 4,000 to 9,000. It is described that it is aqueous. However, these high molecular weight silicones have a problem in terms of low temperature stability.

  On the other hand, hair styling products are usually blended with hair styling resins, but increasing the blending amount in order to increase the setting power will make the crisp resin feel harder, or it may feel stiff or sticky. Increases and reduces smoothness. Once the hair-styling resin film was broken, it was difficult to re-hair.

  In addition, as a prior art document regarding the emulsification technique used in the present invention, Japanese Patent Publication No. 57-29213 (Patent Document 3) and Japanese Patent No. 3649341 (Patent Document 4) can be cited. In Patent Document 3, a hydrophilic nonionic surfactant is added to a water-soluble solvent, then an oil phase is added thereto to prepare an oil-in-water emulsion in a water-soluble solvent, and then water is added to the emulsion. A technique for producing a stable oil-in-water emulsion is described. Patent Document 4 describes a technique using a complex of an amphoteric surfactant and / or a semipolar surfactant and a higher fatty acid as an emulsifier.

JP 63-183517 A JP-A-1-139522 Japanese Patent Publication No.57-29213 Japanese Patent No. 3649341

  The present invention has been made to solve the above-mentioned problems of the prior art, and its purpose is a hair cosmetic compounded with high molecular weight silicone, which has set power (hair-setting power) and stability (especially low-temperature stability). It is an object of the present invention to provide a hair cosmetic that is excellent in properties, has no moist feeling and stickiness, and does not feel stiff even when a hair-styling resin is blended, and has excellent re-styling ability.

  In order to solve the above problems, the present inventor has conducted extensive research and as a result, conventional emulsification of a system containing high molecular weight silicone has been carried out with a nonionic surfactant and a polyhydric alcohol. It has been found that a high molecular weight silicone can be stably blended by blending an agent and a fatty acid. At the same time, by increasing the amount of high molecular weight silicone and further adding a silicone surfactant, the hair styling power is increased, there is no crispness peculiar to hair styling resins, and the re-hair styling power is further improved with a favorable feel. I found it. The present invention has been made based on these findings.

  That is, the present invention comprises (a) a polyhydric alcohol, (b) a hydrophilic nonionic surfactant, (c) an amphoteric surfactant and / or a semipolar surfactant, (d) a higher fatty acid, and (e) a high An emulsified hair cosmetic comprising a molecular weight silicone is provided.

  The present invention also provides the above emulsified hair cosmetic, wherein the component (c) and the component (d) are present in the form of a complex.

  The present invention also provides the above emulsified hair cosmetic, wherein the component (e) is a compound represented by the following formula (I).

[In the formula (I), R ₁ represents a methyl group, or a part of R ₁ represents a methyl group and the remaining R ₁ represents a phenyl group; R ₂ represents a methyl group or a hydroxyl group. n represents an integer of 3,000 to 20,000. ]

  The present invention further provides the above emulsified hair cosmetic, further comprising (f) a silicone surfactant.

  The present invention also provides the above emulsified hair cosmetic, wherein the component (f) is a poly (oxyethylene / oxypropylene) methylpolysiloxane copolymer.

  Moreover, this invention provides the said emulsification type hair cosmetics which further contain (g) hair-styling resin.

  According to the present invention, there is provided an emulsified hair cosmetic that is excellent in setting power (hair-setting power), moist feeling, and stability (particularly low-temperature stability), has no stickiness, and has excellent hair-resetting power.

  The polyhydric alcohol as the component (a) is not particularly limited as long as it has two or more hydroxyl groups in the molecule and is generally used for external preparations and cosmetics. Examples include glycerin, propylene glycol, diethylene glycol, dipropylene glycol, 1,3-butylene glycol, 1,4-butylene glycol, diglycerin, polyglycerin, polyethylene glycol, sorbitol, xylitol, mannitol, maltose and the like. However, it is not limited to these examples. (A) A component can use 1 type (s) or 2 or more types.

  In the present invention, as will be described later, the component (a) is used together with the component (b) to emulsify the system containing the component (e), but the total amount of the component (a) is used only for emulsification. Instead, a part of the component (a) can be used for emulsification, and the remainder can be used as a water-soluble solvent.

  The blending amount of the component (a) is preferably 0.5 to 50% by mass, more preferably 0.5 to 30% by mass, and particularly preferably 0.5 to 20% by mass in the total amount of the hair cosmetic. If the blending amount is less than 0.5% by mass, the moisturizing power tends to be insufficient. On the other hand, if the blending amount exceeds 50% by mass, the usability tends to be sticky.

  The hydrophilic nonionic surfactant as the component (b) is not particularly limited, but preferably has a relatively large hydrophilic group and hydrophobic group. In particular, in the hair cosmetic composition of the present invention, since the interface film basically has a strong microemulsion structure, it is preferable that the surfactant used has a high HLB as compared with the conventional emulsification system. For example, higher fatty acid esters and higher alcohol ethers having a polyoxyethylene (POE) of 20 mol or more, phytosterols and cholesteryl ethers of 15 mol or more of polyoxyethylene (POE), and glycerin fatty acid esters of 10 mol or more of polyoxyethylene (POE) Further, hardened castor oil derivatives, polyglycerin higher fatty acid esters and the like having 40 mol or more of polyoxyethylene (POE) are preferable. However, it can also be applied to cetyl ethers and glycols having a polyoxyethylene (POE) content of 10 mol or more and a polyoxypropylene (POP) content of 4 mol or more, and are semi-solid or solid lipophilic nonions at room temperature. Surfactants, ie higher fatty acid esters of glycerin such as glyceryl monostearate, higher fatty acid esters of propylene glycol such as propylene glycol monostearate, higher fatty acid esters of pentaerythritol such as pentaerythritol monostearate, sorbidan monostearate Higher fatty acid esters of sorbidane such as rate, and higher fatty acid esters of polyglycerin such as hexaglyceryl pentastearate can also be used. (B) A component can use 1 type (s) or 2 or more types.

  (B) As for the compounding quantity of a component, 0.1-10 mass% is preferable in hair cosmetics whole quantity, More preferably, it is 0.1-5 mass%. When the blending amount is less than 0.1% by mass, sufficient emulsification stability tends to be not obtained, while when the blending amount exceeds 10% by mass, the usability tends to be sticky.

  The component (c) is an amphoteric surfactant and / or a semipolar surfactant. Examples of the amphoteric surfactant include those represented by the following formulas (II) to (VI), and examples of the semipolar surfactant include those represented by the following formula (VII). However, it is not limited to these examples.

Formula (II):

Amidobetaine-type amphoteric surfactant represented by Examples of commercially available products include “Rebon 2000” (manufactured by Sanyo Chemical Co., Ltd.) and “Anon B DF” (manufactured by Nippon Oil & Fats Co., Ltd.).

Formula (III):

Amidosulfobetaine-type amphoteric surfactant represented by Examples of commercially available products include “Lonzain-CS” (manufactured by Lonza), “Miratine CBS” (manufactured by Milanol), “Sofdazoline LHL-SF” (manufactured by Asahi Kasei Chemicals Corporation), and the like.

Formula (IV):

Betaine amphoteric surfactant represented by Examples of commercially available products include “Anon BL” (manufactured by NOF Corporation), “Dehainton AB-30” (manufactured by Henkel), and the like.

Formula (V):

A sulfobetaine type amphoteric surfactant represented by the formula: Examples of commercially available products include “Lonzain 12CS” (manufactured by Lonza).

Formula (VI):

An imidazolinium type amphoteric surfactant represented by Commercially available products include “Obazoline 662-N” (manufactured by Toho Chemical Co., Ltd.), “Anon GLM” (manufactured by Nippon Oil & Fats Co., Ltd.), and the like.

Formula (VII):

A tertiary amine oxide type semipolar surfactant represented by the formula: Examples of commercially available products include “Unisafe A-LM” (manufactured by Nippon Oil & Fats Co., Ltd.), “Wandamine OX-100” (manufactured by Shin Nippon Co., Ltd.), and the like.

However, in the above formulas (II) to (VII), R ₃ is an alkyl group or alkenyl group having an average carbon number of 9 to 21, preferably an alkyl group or alkenyl group having an average carbon number of 11 to 17, more preferably Is an alkyl group or alkenyl group having an average carbon number of 11-13. If the average number of carbon atoms is less than 9, the hydrophilicity is too strong. On the other hand, if it exceeds 21, the solubility in water decreases. R ₄ and R ₅ represent an alkyl group or alkenyl group having an average carbon number of 10 to 18. p represents an integer of 2 to 4, q represents an integer of 0 to 3, and s represents an integer of 1 or 2. (C) 1 type (s) or 2 or more types are used for a component.

The higher fatty acid as the component (d) is not particularly limited, but the following formula (VIII)
R ₆ COOH (VIII)
(In the formula, R ₆ is a linear or branched saturated or unsaturated hydrocarbon group having 7 to 25 carbon atoms, which may be substituted with a hydroxyl group.)
The one represented by is most preferably used. In a preferred embodiment of the present invention, the component (c) and the component (d) form a complex as will be described later, but if the R ₆ has less than 7 carbon atoms, the hydrophilicity is too strong and the complex is formed. On the other hand, when the number of carbon atoms exceeds 25, the melting point becomes high and it is difficult to form a composite. The number of carbon atoms of R ₆ is preferably 9 to 23, more preferably 11 to 21. Further, in the hydrocarbon group, in particular, the hydrogen atom may be substituted with a hydroxyl group.

  Specifically, such higher fatty acids include, for example, linear saturated fatty acids such as lauric acid, myristic acid, palmitic acid, stearic acid, arachidic acid, and behenic acid; 2-palmyltreic acid, petrothelic acid, oleic acid, elaidic acid, Unsaturated fatty acids such as ricinoleic acid, linoleic acid, linoelaidic acid, linolenic acid, and arachidonic acid; branched chain saturated fatty acids such as isostearic acid; hydroxycarboxylic acids such as 1,2-hydroxystearic acid, etc. Isostearic acid is most preferably used from the viewpoint of low irritation to the skin. (D) 1 type (s) or 2 or more types can be used for a component.

  In a preferred embodiment of the present invention, component (c) and component (d) form a complex. For example, the complex is prepared by mixing one or more of component (c) and water, stirring and mixing one or more components of component (d), and then subjecting the mixture to centrifugation. It can be easily obtained by performing etc. This complex is obtained by binding a surfactant at the carboxyl portion of a higher fatty acid, and is excellent as an emulsifier. Details thereof are described in Patent Document 4 (= Patent No. 3649341) cited as a prior art document. Yes.

  In the present invention, the compounding ratio (mass ratio) of the component (c) and the component (d) in the composite is such that the mass ratio of the component (c) :( d) is 0 from the viewpoint of the stability of the emulsion. .5: 9.5 to 9.5: 0.5 is preferable, and 1: 9 to 9: 1 is more preferable.

  The compounding amount of the component (c) and the component (d) is preferably 0.1 to 30% by weight, more preferably 0.5 to 20% by weight, based on the total amount of the hair cosmetic. . If the amount is less than 0.1% by weight, it is difficult to obtain the stability of the emulsion. On the other hand, if the content exceeds 30% by weight, the effect is saturated, and thus it is not economical.

  As the high molecular weight silicone as the component (e), a compound represented by the following formula (I) is preferably used.

In formula (I), R ₁ represents a methyl group, or a part of R ₁ represents a methyl group and the remaining R ₁ represents a phenyl group. R ₂ represents a methyl group or a hydroxyl group. n represents an integer of 3,000 to 20,000. In terms of molecular weight, it is about 370,000 to 1,500,000, and the properties are soft rubber at room temperature. In the present invention, n preferably represents an integer of 5,000 to 8,000. If the specific structure of the component (e) is indicated by chemical names, dimethylpolysiloxane, methylphenylpolysiloxane, terminal hydroxyl group-containing dimethylpolysiloxane, terminal hydroxyl group-containing methylphenylpolysiloxane and the like can be mentioned.

  The amount of component (e) is preferably 0.02 to 8% by mass, more preferably 0.1 to 6% by mass, still more preferably 0.2 to 5% by mass, particularly preferably 0, based on the total amount of the hair cosmetic composition. 0.5 to 4% by mass. When the blending amount is less than 0.02% by mass, it is difficult to obtain a sufficient setting force, while when the blending amount exceeds 8% by mass, the usability tends to be sticky.

  When the component (e) is blended in the emulsified hair cosmetic of the present invention, it is preferably blended by dissolving in volatile oil. Of course, it may be blended separately in the hair cosmetic and dissolved in the system. Examples of the volatile oil (low boiling oil) include low boiling chain silicone, cyclic silicone, and low boiling isoparaffin hydrocarbon. The low boiling chain silicone is represented by the following formula (IX), and specific examples include hexamethyldisiloxane, octamethyltrisiloxane, decamethyltetrasiloxane, hexadecamethylheptasiloxane and the like.

(In the formula, m represents an integer of 0 to 10.)

  The cyclic silicone is represented by the following formula (X), and specific examples include octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, and tetradecamethylcyclopentasiloxane.

(In the formula, k represents an integer of 3 to 7.)

  Examples of the low-boiling isoparaffinic hydrocarbons include isoparaffinic hydrocarbons having a boiling point of 60 to 260 ° C. at normal pressure, such as Isopar (registered trademark) A, C, and D manufactured by Exxon. , E, G, H, K, L, M, Shellsol (registered trademark) 71 manufactured by Shell, Saltol (registered trademark) 100 or 130, 220 manufactured by Philip be able to.

  The low boiling point oil can be used alone or in combination of two or more, and the total blending amount is preferably 1 to 50 times (mass) with respect to the component (e9), and is 0. 1-50 mass% is preferable.

  The emulsified hair cosmetic composition of the present invention contains the above components (a) to (e) as essential components and is described in Patent Document 3 (= Japanese Patent Publication No. 57-29213) and Patent Document 4 (= Patent No. 3649341). The component (e) is emulsified by combining two emulsification methods.

  Usually, in emulsification, water and oil are used for emulsification. However, in the emulsification method described in Patent Document 3, a moisturizing agent (polyhydric alcohol, etc.) and oil are first emulsified with an emulsifier, and then water or alcohol (lower alcohol) is used. Is a method of making an emulsified product in which the emulsion is stabilized. In the emulsification method described in Patent Document 4, when an amphoteric surfactant and / or semipolar surfactant that is easily soluble in water and a higher fatty acid that is easily soluble in oil are mixed in a certain ratio, the oil is instantly incorporated into water. Since a complex (liquid crystal) that is not soluble in water is produced, the mixing ratio of the amphoteric surfactant and / or the semipolar surfactant and the higher fatty acid is changed by an emulsification method using the complex as an emulsifier. , O / W type emulsification and W / O type emulsification can be freely controlled.

  In the present invention, the components (a) and (e) are non-water emulsified with the component (b), water and alcohol (lower alcohol) are added thereto to stabilize the emulsion, and the components (c) and (d) ) The composite of the components is used as an emulsifier. By using these two emulsification methods, it becomes possible to mix stably even if the amount of component (e) is increased.

  In addition to the essential components (a) to (e), the hair cosmetic composition of the present invention may further contain (f) a silicone surfactant from the viewpoint of hair styling power (setting power). The component (f) is not particularly limited. For example, a nonionic silicone surfactant obtained by modifying a siloxane skeleton with a polyether group, an epoxy polyether group, a hydroxyl group, an amino group, an epoxy group, or the like; siloxane Examples include, but are not limited to, cationic silicone surfactants having a skeleton modified with an ammonium base; amphoteric silicone surfactants having a siloxane skeleton modified with a sulfobetaine group. By using a silicone-based surfactant having a modified group introduced into the polysiloxane chain, the emulsifiability and stability of the high molecular weight silicone can be significantly improved, and a hair cosmetic composition excellent in formulation can be prepared. Can do.

  Preferably, polyether-modified silicone surfactants can be mentioned in that the polarity can be adjusted over a wide range from hydrophilic to lipophilic. Among them, poly (oxyethylene / oxypropylene) methyl polysiloxane copolymer, polyoxyethylene methyl polysiloxane copolymer, silicone chain branched methyl polysiloxane copolymer, alkyl chain branched polyoxyethylene methyl polysiloxane copolymer Copolymer, alkyl chain / silicone chain branched polyoxyethylene methyl polysiloxane copolymer, cross-linked polyoxyethylene methyl polysiloxane, alkyl group-containing cross-linked polyoxyethylene methyl polysiloxane, branched polyglycerin-modified silicone, cross-linked poly Preferable examples include glycerin-modified silicone, alkyl group-containing crosslinked polyglycerin-modified silicone, and alkyl group-branched polyglycerin-modified silicone.

  Of these, poly (oxyethylene / oxypropylene) methylpolysiloxane copolymer is most preferred. Examples of the poly (oxyethylene / oxypropylene) methylpolysiloxane copolymer include PEG / PPG-20 / 22 butyl ether dimethicone (“KF-6012”; manufactured by Shin-Etsu Chemical Co., Ltd.), PEG / PPG-20 / 20. Dimethicone ("BY22-008M"; manufactured by Toray Dow Corning Silicone Co., Ltd.), lauryl PEG / PPG-18 methicone ("5200 Formulation Aid"; manufactured by Toray Dow Corning Co., Ltd.), PEG / PPG-19 / 19 dimethicone (“5330 Fluid”; manufactured by Toray Dow Corning), PEG / PPG-15 / 15 dimethicone (“5330 Fluid”; manufactured by Toray Dow Corning), poly (oxyethylene / oxypropylene) Methylpolysiloxane copolymer (“FZ-2222”; manufactured by Toray Dow Corning Co., Ltd.) It is.

  (F) When mix | blending a component, the compounding quantity has 0.02-5 mass% in this invention hair cosmetics whole quantity, Preferably it is 0.1-2 mass%, More preferably, it is 0.1-1 more preferably. 0.5% by mass. If the blending amount is less than 0.1% by mass, sufficient setting force tends to be not obtained. On the other hand, if the blending amount exceeds 1.5% by mass, the usability tends to be sticky.

  In the present invention, by increasing the blending amount of the component (e), by blending the component (f), the hair styling power (setting power) is increased, and with a preferable feel that does not have the unique crispness due to the conventional high resin blending, In addition, the ability to re-hair is increased.

In the present invention, (g) a hairstyling resin may be further blended from the viewpoint of further improving the effect of setting. The component (g) is not particularly limited, and examples thereof include one or more selected from nonionic, anionic, amphoteric, and cationic polymer compounds having film-forming properties. Specifically, the following compounds are exemplified. However, it is not limited to these examples.
(1) Vinylpyrrolidone polymer compounds such as polyvinylpyrrolidone and polyvinylpyrrolidone-vinyl acetate copolymer (such as Rubiscol K-90 and VA73 manufactured by BASF),
(2) Vinyl alcohol polymer compounds such as polyvinyl alcohol and polyvinyl butyral (Nippon Gosei Co., Ltd. Gohsenol, Denka Poval from Denki Kagaku Kogyo Co., Ltd.),
(3) Acid vinyl ether polymer compounds such as vinyl methyl ether / butyl maleate (Anière BEM-42S from Osaka Organic Chemical Co., Gantrez ES-225 from ISP, etc.)
(4) Acrylic polymers such as alkyl acrylate / alkyl methacrylate / diacetone acrylamide / methacrylic acid copolymer liquid, alkyl acrylate copolymer, acrylic acid / acrylic acid amide / ethyl acrylate copolymer, etc. Compound (BASF's Rubimer 100P, Ultra Hold Strong, Mitsubishi Chemical's Diamond HR-200, Kyoyo Chemical's Plus Size L-53P, etc.)
(5) N-methacryloyloxyethyl-N, N-dimethylammonium-α-N-methylcarboxybetaine / alkyl methacrylate copolymer, acrylic acid octylamide / hydroxypropyl acrylate / butylaminoethyl methacrylate copolymer, etc. Amphoteric acrylic polymer compounds (such as Yuka Former AM-75 and Yuka Former 301 from Mitsubishi Chemical Corporation, Anformer 28-4910 from NSC Japan),
(6) Hydroxyethylcellulose dimethyldiallylammonium chloride copolymer, hydroxyethylcellulose hydroxypropyltrimethylammonium chloride, vinylpyrrolidone / N, N′-dimethylaminoethylmethacrylic acid copolymer diethyl sulfate solution, dimethyldiallylammonium chloride homopolymer, Nitrogen-containing cationic polymer compounds such as dimethyldiallylammonium chloride / acrylamide copolymer (Amercor Polymer JR-125, Lion Leoguard GP, Japan NSC Cell Coat L-200, ISP Gaff Coat 734, Osaka HC Polymer 1N from Organic Chemistry, Marcote 550 from Nalco, etc.).

  (G) When mix | blending a component, the compounding quantity has preferable 0.05-10 mass% in this invention hair cosmetics whole quantity, More preferably, it is 0.1-7 mass%, Most preferably, it is 0.2-5. % By mass. If the blending amount is less than 0.05% by mass, the intended effect of improving the hair styling power (setting power) cannot be expected. On the other hand, if the blending amount exceeds 10% by mass, stickiness occurs, which is not preferable.

  Of the hair-styling resins described above, for anionic and amphoteric polymers, if they are insoluble in water as they are, neutralize some or all of the functional groups with an inorganic or organic alkaline agent as necessary, It may be water-soluble.

  Examples of the alkali agent used for the purpose of neutralization include hydroxides of alkali metals such as sodium hydroxide and potassium hydroxide. Further, volatile alkaline agents such as ammonia and morpholine, triethanolamine, diethanolamine, isopropanolamine, monoethanolamine, diisopropanolamine, 2-amino-2-methyl-1-propanol, 2-amino-2-methyl-1, Examples include alkanolamines such as 3-propanediol, and amino acids such as L-arginine and lysine.

  In the present invention, (h) a polyether compound may be further blended from the viewpoint of improving hair styling ability. Although it does not specifically limit as (h) component, In this invention, the compound shown by following formula (XI) is used preferably.

In the above formula (XI), R ₆ represents a hydrogen atom, an alkyl group having 4 to 22 carbon atoms, or a polyhydric alcohol residue having 3 to 6 hydroxyl groups. u represents an integer of 40 or more, preferably an integer of 40 to 80.

In the above formula (XI), examples of R ₆ representing a hydrogen atom include polyoxypropylene (u = 69), polyoxypropylene (u = 45) and the like.

In the above formula (XI), R ₆ is an alkyl group having 4 to 22 carbon atoms, polyoxypropylene (u = 40) butyl ether, polyoxypropylene (u = 52) butyl ether, polyoxypropylene (u = 60). ) Lanolin ether, polyoxypropylene (u = 70) cetyl ether, polyoxypropylene (u = 60) stearyl ether and the like. As a commercial item, "Unilube MN370" (Nippon Yushi Co., Ltd. product) [= polyoxypropylene (40) butyl ether] etc. are mentioned, for example.

In the formula (XI), R ₆ represents a polyhydric alcohol residue having 3 to 6 hydroxyl groups, and the polyhydric alcohol mother nucleus is glycerin, diglycerin, pentaerythritol, trimethylolpropane, trimethylolethane, Mannittan, sorbitan, mannit, and sorbit are listed. Specific examples include polyoxypropylene (u = 50) glyceryl ether, polyoxypropylene (u = 70) glyceryl ether, polyoxypropylene (u = 41) sorbit, and the like.

  (H) When mix | blending a component, the compounding quantity is 0.5-40 mass% in this invention hair cosmetics whole quantity, Preferably it is 1-30 mass%, More preferably, it is 1-20 mass%. . If the blending amount is less than 0.5% by mass, a sufficient improvement in hair styling power cannot be expected. On the other hand, if the blending amount exceeds 40% by mass, stickiness occurs, which is not preferable.

  As described above, the emulsified hair dressing of the present invention can be produced by combining two emulsification methods described in Patent Document 3 and Patent Document 4. These two emulsification methods may be performed separately or simultaneously. Specifically, for example, the mixture of the component (a) and the component (b) is separately mixed with the component (d) and the component (e), and if desired, the mixture added with the component (f) is added to the mixture. This can be performed by a method of emulsifying using, for example, a homomixer, further adding the component (c) and further emulsifying with a homomixer, adding other components and mixing. However, it is not limited to this exemplified method.

  In the emulsified hair styling composition of the present invention, other surfactants ((b) component, (c) component, (f) are optionally added within the qualitative and quantitative ranges that do not impair the effects of the present invention. ) Other than ingredients), oils, antioxidants, UV absorbers, thickeners, fragrances, dyes, pigments, pigments, preservatives, vitamins, deodorants, pH adjusters, fixing agents, etc. You may mix | blend the component used for.

  The emulsified hair conditioner of the present invention can be applied to various dosage forms such as cream, gel, emulsion, paste, solid, etc., as hair milk, hair cream, hair wax, hair gel, hair water, etc. Preferably used.

The present invention will be described in more detail with reference to the following examples, but the present invention is not limited thereto. Unless otherwise specified, the blending amount is expressed in mass% with respect to the system in which the component is blended.
The evaluation method performed in this example will be described.

[Set power]
A strand test was conducted by five specialist panels. That is, five specialist panels each applied an appropriate amount of the sample to the hair bundle, and the setting power (hair-setting power) was evaluated in four stages: ◎, ○, ○ △, and Δ.
◎: 5 people answered good ○: 4 people answered good ○ △: 3 people answered good △: 2 people or less answered

[Usability test method (moisture, stickiness)]
A strand test was conducted by five specialist panels. That is, five specialist panels each applied an appropriate amount of a sample to the hair bundle, and evaluated usability (no moisture and no stickiness) in four stages: ◎, ○, ○ △, and Δ.
◎: 5 people answered good ○: 4 people answered good ○ △: 3 people answered good △: 2 people or less answered

[Stability test]
The sample was allowed to stand for 1 month in a thermostatic layer at 50 ° C., room temperature (25 ° C.), 0 ° C., and −20 ° C., and compared with the state immediately after production.
○: At each temperature, no separation or precipitation is observed and it is stable.
If there is a problem with stability, the reason is described.

[Rehair]
One expert panel actually used and evaluated. That is, one professional panel applied the sample to his / her hair, and after 2 hours or more had passed, the hair was set again with a hand comb to evaluate the re-styling ability. This re-styling ability was evaluated on a four-point scale: ◎, ○, ○ △, △.
◎: Re-styling power is very strong ○: Re-hair styling power is strong ○ △: Re-hair styling power is normal △: Re-hair styling power is weak

(Examples 1-4, Comparative Examples 1-4)
Samples having the compositions shown in Table 1 were produced by the methods shown below, and using these samples, the setting power, usability, stability, and re-styling power were evaluated according to the above evaluation methods. The results are shown in Table 1.
<Method for Producing Samples Shown in Table 1>
(2) was dissolved in (1) in the main kettle. (6) was dissolved in the main kettle, and (4) and (5) dispersed in (3) were added to the main kettle and dissolved. (7) to (9) were mixed and added to the main kettle. (10) to (12) were mixed in the auxiliary kettle, and premixed (13) to (21) were added to the auxiliary kettle and emulsified with a homomixer (9000 rpm) for 3 minutes. Further, (22) was added and emulsified with a homomixer (9000 rpm) for 1 minute, and (23) was added and stirred and mixed. The auxiliary kettle was added to the main kettle, and (24) to (26) were sequentially added and mixed with stirring.

In Table 1, “high molecular weight silicone” ^{(*) used} is _{one in} which R ₁ is a methyl group, R ₂ is a methyl group, and n = 5000 to 8000 in the above formula (I).

The “amino-modified silicone” ^(**) used in Comparative Example 4 was a compound represented by the following formula (XII).

[In formula (XII), h represents a number from 7000 to 12000, and j represents a number from 5 to 15. ]
In Table 1, the blending amount “2% by mass” of “sorbitol (70%)” is “1.4% by mass” in terms of actual (pure) content.

  As is clear from the results in Table 1, when Comparative Examples 1 to 4 and Examples 1 to 4 are compared, the two emulsification methods are used in combination, thereby improving usability and setting properties, and particularly stability ( It was found to be excellent in low temperature stability.

Claims (6)

  (A) a polyhydric alcohol, (b) a hydrophilic nonionic surfactant, (c) an amphoteric surfactant and / or a semipolar surfactant, (d) a higher fatty acid, and (e) a high molecular weight silicone, Emulsified hair cosmetics.   The emulsified hair cosmetic composition according to claim 1, wherein the component (c) and the component (d) are present in the form of a complex. The emulsified hair cosmetic composition according to claim 1 or 2, wherein the component (e) is a compound represented by the following formula (I).

[In the formula (I), R ₁ represents a methyl group, or a part of R ₁ represents a methyl group and the remaining R ₁ represents a phenyl group; R ₂ represents a methyl group or a hydroxyl group. n represents an integer of 3,000 to 20,000. ]   The emulsified hair cosmetic according to any one of claims 1 to 3, further comprising (f) a silicone-based surfactant.   The emulsified hair cosmetic composition according to claim 4, wherein the component (f) is a poly (oxyethylene / oxypropylene) methylpolysiloxane copolymer.   The emulsified hair cosmetic according to any one of claims 1 to 5, further comprising (g) a hair styling resin.