JP4458467B2 - Spray hair cosmetics - Google Patents

Description

  The present invention relates to a spray-type hair cosmetic.

  2. Description of the Related Art Conventionally, there are various types of hair cosmetics that have an effect of imparting smoothness, suppleness, and good luster to hair while exhibiting an excellent setting effect when applied to hair.

  By the way, for example, hair cosmetics in which a setting effect is ensured by blending a resin for fixing hair such as an acrylic resin has a problem that the hair is stiff and lacks flexibility. In order to improve the touch, a cationic surfactant or the like is added, and an oil component or the like is also added to improve the gloss of the hair. There is also a problem that the set effect is lost.

  As a technique for solving such problems, a hair styling composition comprising a combination of high molecular weight silicone oil, a hair fixing polymer, a higher alcohol and a specific oil has been proposed (Patent Document 1). And in patent document 1, according to this hairdressing agent composition, it is supposed that the smooth and supple touch and favorable gloss can be provided to hair, having the outstanding setting effect.

  However, the hair styling composition according to Patent Document 1 has a problem in appearance such that flaking is likely to occur depending on the type of hair fixing polymer to be selected and in the case of a spray type. It was.

  Cosmetics containing a specific N-long chain acyl neutral amino acid ester and / or a specific N-long chain acyl acidic amino acid ester as a product that suppresses the stickiness when used or after drying on hair A composition has also been proposed (Patent Document 2). However, in the cosmetic composition of Patent Document 2, the operability in the case of a spray type form is not always satisfactory.

JP 2001-335444 A JP 2000-355524 A

  The present invention has been made in view of the above circumstances, and an object thereof is to provide a spray-type hair cosmetic with good operability that can impart natural luster and excellent flexibility to hair.

  The present invention is a spray-type hair cosmetic composition containing a non-aqueous stock solution, and the stock solution may be referred to as a compound represented by the following general formula (1) (hereinafter referred to as “N-acyl glutamine compound”). ) Is contained in an amount of 0.02 to 10% by mass.

(Wherein R ¹ represents a hydrogen atom, an alkyl group having 12 to 22 carbon atoms or an alkenyl group having 12 to 22 carbon atoms, R ² represents an alkyl group having 1 to 22 carbon atoms, and R ³ represents —OH or —NH ₂ , provided that when R ¹ is a hydrogen atom, R ³ is —NH _2. )

  The stock solution preferably further contains an alcohol having 1 to 4 carbon atoms (hereinafter sometimes referred to as “lower alcohol”), and the content of the lower alcohol in the stock solution is 20 to 70% by mass. It is recommended that there be.

  The stock solution preferably further contains volatile silicone, and the silicone content in the stock solution is preferably 10 to 50% by mass.

  Furthermore, in the spray type hair cosmetic composition of the present invention, a case where a propellant is contained in addition to the above stock solution (that is, aerosol type hair cosmetic composition) is also a preferred embodiment.

  The spray-type hair cosmetic composition of the present invention has high operability, and can impart natural luster and excellent flexibility to the hair.

  In general, spray hair cosmetics including aerosols have the advantage that the cosmetics can be uniformly applied to the hair. However, conventional hair cosmetics containing ingredients capable of imparting natural luster and excellent flexibility to the hair (for example, a hair styling composition described in Patent Document 1 and a cosmetic composition described in Patent Document 2) In the case of the spray type, however, there is room for improvement such as flaking and the operability is not always sufficient. In the present invention, the use of the N-acylglutamine compound represented by the general formula (1) suppresses appearance problems such as flaking and ensures excellent operability even in a spray-type form. However, it has the greatest feature in that it can impart natural luster and excellent flexibility to the hair.

  The “operability” of the spray-type hair cosmetic referred to in the present specification means whether or not the user feels that the hair cosmetic is easy to use. Fineness, mist application width, gas momentum), button press time for spraying, balance of amount and effect of hair cosmetics, ease of handling when setting with hand comb while using, etc. , Which includes various elements and refers to characteristics that are comprehensively evaluated for the quality. Hereinafter, the present invention will be described in detail.

The spray-type hair cosmetic composition of the present invention has a non-aqueous stock solution containing an N-acylglutamine compound represented by the above general formula (1). The N-acylglutamine compounds include, for example, N-acylglutamic acid esters in which R ³ is —OH in the general formula (1) and N-acylglutamines in which R ³ is —NH ₂ .

Examples of N-acylglutamines in which R ^{3 in the} general formula (1) is —NH ₂ include N-acetyl-L-glutamine, N-acetyl-L-glutamine stearyl, and N-acetyl-L-glutamine isostearyl. Etc. Among these, N-acetyl-L-glutamine isostearyl is preferable, and examples of commercially available products include “NAGIS (20E)” manufactured by Kyowa Hakko Kogyo Co., Ltd.

  The hair cosmetic composition of the present invention preferably contains an alcohol having 1 to 4 carbon atoms. Specifically, for example, ethanol, n-propanol, isopropanol, n-butanol, isobutanol and the like can be mentioned, among which ethanol is particularly preferable. By including such a lower alcohol, solubilization of the N-acylglutamine compound can be promoted, and the uniformity of the stock solution can be improved. Moreover, when the hair cosmetic composition of the present invention is applied to the hair, the remaining feeling of the cosmetic composition on the hair can be reduced. This lower alcohol can also be used as a solvent for the stock solution according to the present invention.

Moreover, it is also preferable that the hair cosmetic composition of the present invention contains volatile silicone. By using volatile silicone, it is possible to improve the operability at the time of application of the hair cosmetic and to maintain the function (for example, the moisturizing function) of the N-acylglutamine compound. Furthermore, the feeling of stickiness on the hair can be reduced. The term “volatile silicone” as used herein refers to various silicones generally known as volatile silicones in the cosmetics field. For example, cyclic silicones (such as cyclic dimethylsilicones having a cyclic methylsiloxane structure). And alkyl group-containing polysiloxanes (such as dimethyl silicone having a methyl polysiloxane structure and a low degree of polymerization). Specifically, for example, in the case of cyclic silicone, those having a kinematic viscosity of 10 mm ² / sec or less (more preferably 2 mm ² / sec or more) are applicable. Further, the alkyl group-containing ^{polysiloxane,} 2 mm 2 / sec or less (more preferably ^{1 mm} 2 / sec or more) corresponding those having a kinematic viscosity. In addition, kinematic viscosity here is the value measured on 25 degreeC conditions using the Ubbelohde type | mold viscosity meter according to prescription | regulation of the 1st method of a makeup original group general test method.

  Specific examples of the cyclic silicone include octamethylcyclotetrasiloxane (“SH244” manufactured by Toray Dow Corning Silicone Co., Ltd.), decamethylcyclopentasiloxane (“SH245” manufactured by Toray Dow Corning Silicone Co., Ltd.), GE Toshiba Corporation. Silicone Co., Ltd. “TSF405” etc.), dodecamethylcyclohexasiloxane (Toray Dow Corning Silicone Co., Ltd. “DC246” etc.) and the like. Specific examples of the alkyl group-containing polysiloxane include octamethyltrisiloxane (such as “SH200C-1cs” manufactured by Toray Dow Corning Silicone Co., Ltd.), decamethyltetrasiloxane (manufactured by Toray Dow Corning Silicone Co., Ltd., “ SH200C-1.5cs "), methylpolysiloxane (" SH200C-2cs "manufactured by Toray Dow Corning Silicone Co., Ltd.), and the like.

  The stock solution is desirably a solution in which an N-acylglutamine compound or the like is dissolved or dispersed using a solvent. As the solvent, for example, a lower alcohol (alcohol having 1 to 4 carbon atoms) exemplified above may be used as a solvent in addition to a hydrocarbon compound such as isopentane.

  In the stock solution, the content of the N-acylglutamine compound is 0.02% by mass or more, preferably 0.05% by mass or more, more preferably 0.1% by mass or more, and 10% by mass or less. More preferably, it is 5 mass% or less. If the content of the N-acylglutamine compound is too small, the effect of using this (particularly the effect of imparting excellent flexibility to the hair) may be insufficient. There is a problem that the texture may become heavy and sticky, and the cost of raw materials increases.

  The content of the lower alcohol in the stock solution is, for example, 20% by mass or more, more preferably 40% by mass or more, and preferably 70% by mass or less, more preferably 50% by mass or less. If the content of the lower alcohol is too low, the effect of adding the lower alcohol, that is, the solubilizing effect of the N-acylglutamine compound may be insufficient. May come with an odor.

  Furthermore, it is recommended that the content of volatile silicone in the stock solution is, for example, 10% by mass or more, more preferably 30% by mass or more, and 50% by mass or less, more preferably 40% by mass or less. . If the volatile silicone content is too low, the effect of adding this may be insufficient (especially the operability improving effect when applying the hair cosmetic), whereas if it is too high, the hair cosmetic may be insufficient. There may be a decrease in the spread and a sticky feeling or oiliness.

  In addition, various additives may be included in the stock solution according to the hair cosmetic composition of the present invention, if necessary, as long as the effects of the present invention are not impaired. Examples of such additives include hydrocarbon compounds (liquid paraffin, squalane, etc.), cationic surfactants [stearyl trimethyl ammonium chloride, cetyl trimethyl ammonium chloride, lauryl trimethyl ammonium chloride, distearyl dimethyl ammonium chloride, other Dialkyl chloride (for example, C12-18) dimethylammonium, stearyltrimethylammonium bromide, cetyltrimethylammonium bromide, etc.], anionic surfactant (polyoxyethylene lauryl ether sodium sulfate, lauryl sulfate triethanolamine, N-coconut Oil fatty acid acyl-L-glutamic acid triethanolamine, etc.), nonionic surfactant (polyoxyethylene cetyl ether, polyoxyethylene oleyl ether, Reoxyethylene hydrogenated castor oil), amphoteric surfactants (such as lauryl dimethylaminoacetic acid betaine, amidopropyl betaine, N-lauryl-β-alanine), oils [dimethylpolysiloxane (excluding those contained in volatile silicones) ), Silicones such as amino-modified silicone and polyether-modified silicone; esters such as isopropyl myristate and di-2-ethylhexyl succinate; Oils, etc.), wetting agents (glycerin, propylene glycol, 1,3-butylene glycol, dipropylene glycol, polyethylene glycol, sorbitol, maltitol, pyrrolidone carboxylic acid, etc.), preservatives (methyl paraoxybenzoate, paraoxy Propyl benzoate, sodium benzoate, phenoxyethanol, etc.), chelating agents (ethylenediaminetetraacetic acid or its salt, diethylenetriaminepentaacetic acid or its salt, hydroxyethylethylenediaminetriacetic acid or its salt, hydroxyethanediphosphonic acid or its salt, etc.), perfume And additives such as colorants.

  The product form of the hair cosmetic of the present invention is a spray type. Spray-type hair cosmetics are those that spray a stock solution as a cosmetic by the action of pressure and apply it to the hair. This includes aerosol-type hair cosmetics that spray the stock solution using the pressure of a propellant. And a spray-type hair cosmetic that does not use a propellant. In a spray-type hair cosmetic that does not use a propellant, the above-mentioned stock solution is filled in a dispenser container to obtain a product. On the other hand, in aerosol hair cosmetics, the above-mentioned stock solution and propellant are mixed to form a base material, which is filled into an aerosol container to make a product. As the propellant in the case of an aerosol hair cosmetic, various conventionally known propellants used for aerosol products can be used. For example, various liquefied petroleum gas (LPG), dimethyl ether, or a liquefied gas such as a mixture thereof; a compressed gas such as nitrogen gas or carbon dioxide; and the like, such as isopentane exemplified in the description of the stock solution Hydrocarbon compounds can also be used as propellants. In aerosol hair cosmetics, the mixing ratio of the stock solution and the propellant is generally, for example, stock solution / propellant = 20/80 to 80/20 (mass ratio).

  Hereinafter, the present invention will be described in detail based on examples. However, the following examples are not intended to limit the present invention, and all modifications made without departing from the spirit of the preceding and following descriptions are included in the technical scope of the present invention. In the following examples and the like, the amount of each component is shown in% so that the total amount of the stock solution related to hair cosmetics is 100%, all of which are mass%, and each of the following descriptions In the table, the display of% is omitted and only the numerical value indicating the blending amount is displayed.

The raw materials used in the examples and comparative examples are as follows.
(1) N-acylglutamine compound A: “NAGIS” (N-acetyl-L-glutamine isostearyl) manufactured by Kyowa Hakko Kogyo Co., Ltd.
(2) N-acyl glutamine compound B: N-acetyl-L-glutamine manufactured by Kyowa Hakko Kogyo Co., Ltd.
(3) N-acylglutamine compound C: “AMITER LG-2000” (N-lauroyl-L-dioctyldecyl glutamate) manufactured by Nippon Emulsion Co., Ltd.
(4) Decamethylcyclopentasiloxane (volatile silicone): “TSF405” manufactured by GE Toshiba Silicone,
(5) Methyl polysiloxane: “SH200-10000cs” manufactured by Toray Dow Corning Silicone,
(6) Shea fat: “CROPURE LIQUID VEGELAN” manufactured by Croda Japan,
(7) Isopropyl myristate: “NIKKOL IPM” manufactured by Nikko Chemicals.

The decamethylcyclopentasiloxane of (4) has a kinematic viscosity obtained by measurement under the condition of 25 ° C. using an Ubbelohde viscometer in accordance with the provisions of the first method of the general test method for makeup primaries. .95 to 0.97 mm ² / sec, which corresponds to volatile silicone. The methylpolysiloxane (5) has a kinematic viscosity of 10,000 mm ² / sec obtained by the same measurement method as (4), and corresponds to an oil agent rather than volatile silicone.

Examples 1-13
Stock solutions were prepared with the compositions shown in Tables 1-2, and this was mixed with a propellant (LPG) with the compositions shown in Tables 1-2. This was filled in an aerosol container having a capacity of 200 mL to obtain a spray-type hair cosmetic (aerosol-type hair cosmetic).

表１のイソペンタンの欄の「計１００とする」とは、原液を構成するイソペンタン以外の各成分の合計量に、イソペンタンの量を加えて１００質量％となるようにしたことを意味している（後記の表２、５、６においても、同じ）。

In the column of isopentane in Table 1, “100 in total” means that the total amount of each component other than isopentane constituting the stock solution is 100% by mass by adding the amount of isopentane. (The same applies to Tables 2, 5, and 6 below).

A sensory evaluation was performed by a professional panelist on the glossiness, flexibility, and operability of the cosmetic when the resulting spray-type hair cosmetic was used. In the sensory evaluation, the panelists (20 persons) tested the use of each hair cosmetic on damaged hair, and the glossiness, flexibility, and operability of the cosmetic immediately after the cosmetic application. For each of these, a method of evaluating in five stages was adopted. The evaluation criteria were 5 points: very good, 4 points: good, 3 points: normal, 2 points: bad, 1 point: very bad. For each of the glossiness, flexibility, and operability, the score given by each panel was summed, and from this total score, each hair cosmetic was evaluated according to the following criteria. Evaluation criteria are: ◎: total score of 80 or more, ○: total score of 60 or more and less than 80, Δ: total score of 40 or more and less than 60, x: total score of less than 40, ◎ and The evaluation of ○ was regarded as acceptable. The results are shown in Tables 3 and 4.

As can be seen from Tables 3 and 4, in each of the spray-type hair cosmetics of Examples 1 to 13, the glossiness of the hair, the flexibility, and the operability of the cosmetics were all good.

Comparative Examples 1-10
Stock solutions having the compositions shown in Tables 5 and 6 were prepared, and spray hair cosmetics (aerosol hair cosmetics) were prepared in the same manner as in Examples 1-13. About the obtained spray-type hair cosmetics, the same sensory evaluation as Examples 1-13 was performed. The results are shown in Tables 7 and 8.

  As can be seen from Tables 7 and 8, the spray hair cosmetics of Comparative Examples 1 to 3, which do not contain an N-acyl glutamine compound, and Comparative Examples 4 to 6, 12 having a low content of N-acyl glutamine compound -14 spray hair cosmetics and spray hair cosmetics of Comparative Examples 7-11 having a high content of N-acylglutamine compounds, the presence or absence of volatile silicone, lower alcohol, and oil (methylpolysiloxane) Although there are some differences in the effects, the glossiness, flexibility, and operability of the hair are inferior to the spray hair cosmetics of the examples.

Claims (6)

A spray-type hair cosmetic containing a non-aqueous stock solution,
The said stock solution contains 0.02-10 mass% of compounds represented by following General formula (1), The spray type hair cosmetics characterized by the above-mentioned.

(In the formula, ^{R 1} represents an alkyl group or an alkenyl group having a carbon number of 12 to 22 of the hydrogen atoms or 12 to 22 carbon atoms, ^{R 2} represents an alkyl group having 1 to 22 carbon atoms, ^{R 3} is -O H or represents -NH ₂ provided that when ^{R 1} is a hydrogen atom, ^{R 3} is -. a NH _2).

  The spray-type hair cosmetic composition according to claim 1, wherein the stock solution further contains an alcohol having 1 to 4 carbon atoms.   The spray-type hair cosmetic composition according to claim 2, wherein the content of the alcohol having 1 to 4 carbon atoms in the stock solution is 20 to 70 mass%.   The spray-type hair cosmetic composition according to any one of claims 1 to 3, wherein the stock solution further contains volatile silicone.   The spray-type hair cosmetic composition according to claim 4, wherein the content of the volatile silicone in the stock solution is 10 to 50% by mass.   The spray-type hair cosmetic composition according to any one of claims 1 to 5, which contains a propellant in addition to the stock solution.