JP2012036130A - Hairdressing method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a hairdressing method, which allows even an unskilled person (for example, a novice hairdresser) to easily set a hair style as a base for making a beautiful hair style for any person to be treated.SOLUTION: The hairdressing method is sequentially carried out in the following steps (a) to (c): (a) applying a hairdressing agent to at least roots of hair wholly wetted to a degree not dripping, the hairdressing agent containing as a hairdressing ingredient, a hairdressing polymer [component (A)] or the hairdressing polymer [component (A)] and its plasticizer [component (B)], and showing a complex elastic modulus (G*) of a film formed of the hairdressing ingredient, of from 1.0×10to 1.0×10; (b) starting to dry the hair by blowing air to the roots of the hair; and (c) completely drying the whole hair by blowing.

Description

  The present invention relates to a hair styling method.

  When shaping the desired hairstyle in daily hair styling, after the hair is wet or the hair is wetted by applying water to the hair, etc., the hair is dried by blowing the wind of a dryer, etc. . This is because the hair inside the hair can be cut by wetting the hair with water to change the shape of the hair, and then the hair is determined to the desired shape and dried to form new hydrogen bonds. The style is fixed.

  A beautiful hairstyle is a natural unit from the base of the hair to the tip of the hair, a silhouette of the style, a hairstyle that is the base of the hairstyle such as volume up and down, then the hair movement and flow, startup and bundle feeling Etc. Formed by making final hairstyle details.

  The final appearance of the hairstyle depends on how it is moistened and then dried to prepare the hairstyle base, and it is important to dry it first from the base of the hair. It is known (see, for example, Non-Patent Document 1).

  This base hairstyle seems simple and anyone can easily make it, but in reality it can only be beautifully done by a hairdresser with skilled skills in a lean procedure. Is the actual situation. This is because the shape of the head, wrinkles for hair growth (growth wrinkles), hair quality, etc. vary depending on the individual, so advanced skills are required for hair styling that matches the individuality of the individual hair that is the target of hair styling. Because is required.

  On the other hand, various tools and hair styling agents have been proposed for the purpose of creating beautiful hairstyles. But all of them are tools and agents for making the final hairstyle, for temporarily preparing hair wrinkles, or for conditioning the hair, such as adding smoothness and gloss. .

Kumi Yamamoto, “Homi Yamamoto Hair Cram School”, published by Narimedo, August 2008, pages 106-111

  Therefore, the present invention easily prepares a hairstyle that is a base necessary for making a beautiful hairstyle, even if it is not a skilled person (for example, even a new hairdresser) or whoever is a hair stylist. It is an object of the present invention to provide a hair styling method that can be used.

  The present inventors apply a hair styling agent containing a hair styling polymer satisfying a specific evaluation value (or a hair styling polymer and a plasticizer mixture satisfying the evaluation value) to the hair in a specific procedure and dry it. It has been found that the above problems can be solved.

That is, the present invention provides a hair styling method in which operations are performed in the order of the following steps (a) to (c).
Step (a): A hair-styling polymer [component (A)] or a hair-styling polymer [component (A)] and a plasticizer thereof [component (B)] as a hair-styling component, A hair styling agent having a complex elastic modulus (G *) of 1.0 × 10 ^{3 to} 1.0 × 10 ⁹ is applied to at least the roots of the hair that has been moistened to the extent that water does not drip.
Step (b): Drying is started by blowing air to the base of the hair.
Step (c): The entire hair is completely dried by blowing air.

  According to the hair styling method of the present invention, by fixing the hair from the base of the hair to a natural hair flow that conforms to the shape of the head, even if it is not an expert (for example, even a novice beautician), the partner who stylists the hair. No matter who you are, you can easily prepare the hairstyle that will be the base needed to make a beautiful hairstyle.

● Hairdressing agent (complex elastic modulus)
The hair styling agent used in the present invention contains, as a hair styling component, a hair styling polymer [component (A)], or a hair styling polymer [component (A)] and its plasticizer [component (B)]. Measurement and calculation of complex elastic modulus (G *) of the hairdressing component is calculated only when component (A) is included as a hairdressing component in the hairdressing agent. When (B) is contained, these mixtures are carried out as follows.

○ Film formation method of sample to be measured Dissolve the hair-styling component [component (A) and component (B) when component (A) or component (B) is contained] in water, ethanol, or a mixture thereof. The concentration of the solution is not particularly limited as long as it can form a sample to be subjected to complex elastic modulus measurement in the following procedure. However, the ratio of component (A) to component (B) when component (B) is contained is the same as the content ratio in the hairdressing agent.
10 mL of this solution is poured into a petri dish made of Teflon (registered trademark) having a diameter of 5 cm, and left for 2 days in an environment of 40 ° C., 20% humidity and 1013.25 hPa. Subsequently, in order to evaporate and remove the remaining solvent, it is left in a vacuum dryer at a vacuum degree of 5.33 kPa for 24 hours. Then, carefully peel off the film remaining on the bottom of the petri dish.
In film formation of the sample, care should be taken so that bubbles do not enter and that there is no deterioration due to heat or the like. If air bubbles enter or deteriorate, the film formation is restarted.
However, when the component (A) is liquid at room temperature (25 ° C.), the component (A) (or the component (A) and the component (B) ))) Is used as it is for the measurement.

○ Measurement of elastic modulus of sample to be measured As a measuring apparatus used for measuring the complex elastic modulus, for example, MCR500 manufactured by Paar Physica can be used. The sample formed by the above method is sandwiched between parallel plates, heated and melted in a nitrogen atmosphere, and the plate interval is reduced to 1.3 mm. In the molten state, the portion of the film protruding is scraped off to complete the sample mounting. Thereafter, the temperature is lowered to 30 ° C. at a rate of about 10 ° C./min and held for 5 minutes. When component (A) is liquid, component (A) itself or a mixture of component (A) and component (B) is sandwiched between cone plates to complete sample mounting.
The measurement conditions are as follows.

・ Measurement cell: Diameter 6mm, grooved parallel plate (However, when component (A) is liquid at room temperature (25 ℃), diameter 75mm, cone plate CP-75-2)
・ Measurement frequency: 2Hz
・ Measurement temperature: 30 ℃
・ Measurement strain: Within linear range (strain 0.01%)

Calculation of complex elastic modulus From the storage elastic modulus (G ′) and the loss elastic modulus (G ″), the complex elastic modulus (G *) is calculated according to the following formula.
G * = [(G ') ² + (G ") ² ] ^1/2

The complex elastic modulus (G *) of the hair styling component film obtained as described above is 1.0 × 10 ³ from the viewpoint of easily preparing the base hair style necessary for making a beautiful hair style. 1.0 a × 10 ^9, preferably ^{5.0 × 10 3 ~5.0 × 10 8} , more preferably ^{1.0 × 10 4 ~1.0 × 10 8} .

[(A): Hair-styling polymer]
The hair-styling polymer of component (A) includes polyethylene glycol; poly (N-formylethyleneimine) organopolysiloxane, poly (N-acetylethyleneimine) organopolysiloxane, poly (N-propionylethyleneimine) organopolysiloxane, etc. Polysilicone-9; alkyl acrylamide / acrylate / alkyl aminoalkyl acrylamide / polyethylene glycol methacrylate copolymer described in JP-A-2-809911; alkyl acrylamide / alkylaminoalkyl acrylamide described in JP-A-8-291206 / Polyethylene glycol methacrylate copolymer; Yuka Former R205, M-75 (Mitsubishi Chemical Corporation), RAM Resin (Osaka Organic Chemical Co., Ltd.), etc. (methacryloyloxyethylcarboxybetaine / alkyl methacrylate) Polymers: (Acrylates / Lauryl Acrylate / Stearyl Acrylate / Ethylamine Oxide Ethoxide) Copolymers such as Diaformer Z-712 (Mitsubishi Chemical Corporation); (Acrylates / Acrylic such as Diaformer Z-732 (Mitsubishi Chemical Corporation) Acid stearyl / ethylamine methacrylate oxide) copolymers; (vinylamine / vinyl alcohol) copolymers such as Diafix C-601 (Mitsubishi Chemical Corporation); acrylic resin alkanolamine liquids such as plus size L-9540B (Kyoto Chemical Co.); Ultrahold 8. Acrylic acid / acrylic acid amide / ethyl alkylate copolymer such as Strong (above BASF); alkyl acrylate / methacrylic acid / silicone copolymer liquid such as Rubyflex Silk (BASF); Ruby Set PUR ( Polyurethane-1 such as BASF); Rubiscor plastic Polyvinylcaprolactam such as (BASF); Rubimer 100P, 30E (above, BASF) and other acrylic acrylate copolymers; Amformer SH-701, 28-4910, LV-71, LV-47 (Octylacrylamide / Hydroxypropyl acrylate / Butylaminoethyl methacrylate) Copolymers such as (National Starch & Chemical Co., Ltd.); Alkyl acrylate / Aformer V-42 (National Starch & Chemical Co., Ltd.) (Octylacrylamide) copolymer; (VA / crotonic acid / vinyl neodecanoate) copolymer such as Resin 28-2930 (National Starch &Chemical); Polyurethane-14 AMP-acrylic such as Dynam X (National Starch & Chemical) Rate copolymers: Polyquaternium-11 such as Guffcut 440, 734, and 755N (ISP); Guffcut HS- Polyquaternium-28 such as 100 (ISP); (Vinyl methyl ether / ethyl maleate) copolymer such as Gantrez ES-225 (ISP); (PVP / Vinyl caprolactam / acrylic such as Aquaflex SF-40 (ISP)) Acid DMAPA) copolymer; (Isobutylene / ethylmaleimide / hydroxyethylmaleimide) copolymer such as Aquaflex FX-64 (ISP); Polyquaternium-55 such as Stylee W-20 (ISP); Stylee CC-10 (ISP) (Vinylpyrrolidone / DMAPA copolymer) such as PVP / VA735 (ISP); Vinylpyrrolidone / VA copolymer such as PVP / VA735; Lubiscol K-12, 17, 30, 60, 80, 90 (above, BASF) And polyvinylpyrrolidone such as PVP K-15, 30, 60, 90 (and above, ISP).

  Among the hair-styling polymers, (Acrylates / stearyl acrylate / ethylamine oxide oxide) copolymers such as Polysilicone-9, polyethylene glycol, Diaformer Z-732 (Mitsubishi Chemical), (methacryloyloxyethylcarboxybetaine / methacrylic) Acid alkyl) copolymer, polyquaternium-11, (vinyl methyl ether / ethyl maleate) copolymer and polyvinyl pyrrolidone are preferred, and poly-silicone-9 is particularly preferred. Among these hair styling polymers, there are those that do not have the aforementioned complex elastic modulus alone, but if they have the aforementioned complex elastic modulus in combination with the plasticizer of component (B), Such a combination can be used for a hair styling agent.

The most preferred polysilicone-9 among the hair-styling polymers of component (A) will be described.
Polysilicone-9 is represented by the following general formula (1) through an alkylene group containing a hetero atom in at least one silicon atom of the organopolysiloxane segment.

[Wherein, R ¹ represents a hydrogen atom, an alkyl group having 1 to 22 carbon atoms, a cycloalkyl group, an aralkyl group or an aryl group, and n represents a number of 2 or 3. ]
A poly (N-acylalkyleneimine) comprising repeating units represented by the formula is bonded, and the mass ratio of the organopolysiloxane segment to the poly (N-acylalkyleneimine) segment is 98/2 to 40/60. And an organopolysiloxane having a weight average molecular weight of 12,000 to 500,000.

  The alkylene group containing a hetero atom intervening in the bond between an organopolysiloxane segment and poly (N-acylalkyleneimine) has 2 to 20 carbon atoms containing 1 to 3 nitrogen atoms, oxygen atoms and / or sulfur atoms. An alkylene group is mentioned. As a specific example,

Etc. In particular, a C2-C5 alkylene group containing a nitrogen atom is preferable. In addition, examples of the alkyl group represented by R ¹ in the general formula (1) include a methyl group and an ethyl group, and examples of the cycloalkyl group represented by R ¹ include those having 3 to 6 carbon atoms. Examples of the aralkyl group include phenylalkyl and naphthylalkyl, and examples of the aryl group include phenyl, naphthyl, and alkyl-substituted phenyl.

  Polysilicone-9 can be produced by a known method, for example, according to the method described in JP-A-7-133352, the following general formula (2)

[Wherein R ² is the same or different and represents a saturated alkyl group having 1 to 22 carbon atoms or a phenyl group, and R ³ and R ⁴ each represent the same group as R ² , or

R ⁵ represents a group represented by the above formula, a represents an integer of 100 to 4000, and b represents an integer of 1 to 300. ]
And an organopolysiloxane represented by the following general formula (3)

[Wherein, R ¹ and n are as defined above. ]
It is produced by reacting a terminal reactive poly (N-acylalkyleneimine) obtained by ring-opening polymerization of a cyclic imino ether represented by the formula:

  Here, the ring-opening polymerization of the cyclic iminoether (3) can be performed according to the method described in, for example, Liebigs Ann. Chem., P996-p1009 (1974). The polymerization initiator is a compound having strong electrophilic reactivity, such as methyl, ethyl, 3-propenyl, benzyl ester, etc. of strong acid such as benzenesulfonic acid, p-toluenesulfonic acid, trifluoromethanesulfonic acid, trifluoroacetic acid, sulfuric acid and the like. Can be used. In particular, toluenesulfonic acid alkyl ester, sulfuric acid dialkyl ester, trifluoromethanesulfonic acid alkyl ester, and the like can be preferably used. When, for example, 2-substituted-2-oxazoline is used as the cyclic imino ether (3), poly (N-acylethyleneimine) (corresponding to n = 2 in the formula (1)) is obtained, and 2-substituted-dihydro- If 2-oxazine is used, poly (N-acylpropyleneimine) (corresponding to n = 3 in the formula (1)) can be obtained.

  The poly (N-acylalkyleneimine) chain and the silicone chain are linked by ester formation reaction by condensation of carboxy group and hydroxyl group; amide formation reaction by condensation of carboxyl group and amino group; alkyl halide Reaction of primary, secondary or tertiary amino group with secondary, tertiary or quaternary ammonium; addition reaction of Si-H group to vinyl group; β-hydroxyamine with epoxy group and amino group Many techniques such as formation reactions can be used. Among these, as disclosed in JP-A-2-276824, JP-A-4-85334, JP-A-4-85335, JP-A-4-96933 and the like, a cyclic imino ether is subjected to cationic ring opening. The method of reacting the end-reactive poly (N-acylalkylenimine) obtained by polymerization with the organopolysiloxane represented by the formula (2), that is, the modified organopolysiloxane having the above substituent in the side chain, is simple and effective. It is.

  The reaction between the organopolysiloxane containing an amino group and the reactive terminal of poly (N-acylalkylenimine) obtained by cationic polymerization of a cyclic imino ether can be performed, for example, as follows. Initiator is a polar solvent, preferably acetonitrile, valeronitrile, dimethylformamide, dimethylacetamide, chloroform, methylene chloride, ethylene chloride, ethyl acetate, methyl acetate, etc., or a mixed solvent with other solvents as required And heated to 40 to 150 ° C, preferably 60 to 100 ° C. The cyclic imino ether represented by the general formula (3) is charged all at once, or dropped when the reaction is intense, and polymerization is carried out. The progress of the polymerization can be traced by quantifying the residual amount of the cyclic imino ether as a monomer with an analytical instrument such as gas chromatography. Even when the cyclic imino ether is consumed and the polymerization is completed, the active species at the growing end maintain the reactivity. Without isolating the polymer, this polymer solution and the organopolysiloxane containing an amino group in the molecule are mixed and reacted at 5 to 100 ° C., preferably 20 to 60 ° C. The mixing ratio can be appropriately selected as desired, but it is preferable to react at a ratio of 0.1 to 1.3 molar equivalents of poly (N-acylalkylenimine) to 1 mol of amino group in the organopolysiloxane. By the reaction as described above, a block copolymer or graft polymer having poly (N-acylalkylenimine) segments attached to polydimethylsiloxane can be obtained.

In Polysilicone-9, the mass ratio of the organopolysiloxane segment to the poly (N-acylalkyleneimine) segment is 98/2 to 40/60, but it is the base hair needed to make a beautiful hairstyle From the viewpoint that the style can be easily adjusted, 95/5 to 42/58, 93/7 to 44/56, and more preferably 90/10 to 46/54 are preferable. This mass ratio is determined by dissolving 5% by mass of the organopolysiloxane of component (A) in deuterated chloroform, and analyzing it by nuclear magnetic resonance ( ¹ H-NMR) analysis with an alkyl group or phenyl group in the organopolysiloxane segment. The value obtained from the integral ratio of methylene groups in the poly (N-acylalkylenimine) segment.

  In addition, the weight average molecular weight (MWg) of the organopolysiloxane segment between adjacent poly (N-acylalkylenimine) segments of Polysilicone-9 simplifies the basic hairstyle needed to make a beautiful hairstyle. From the viewpoint that it can be adjusted to 1500 to 40000, more preferably 1600 to 35000, and further preferably 1700 to 30000.

Here, the “organopolysiloxane segment between adjacent poly (N-acylalkyleneimine) segments” means the bonding point of the poly (N-acylalkyleneimine) segment to the organopolysiloxane segment as shown in the following formula ( A portion surrounded by a broken line between two points from the bonding point A) to the bonding point (bonding point B) of the poly (N-acylalkylenimine) segment adjacent thereto, and one R ² SiO unit A segment composed of one A ⁴ and y + 1 R ² ₂ SiO units.

[Wherein R ² represents the same meaning as described above, R ⁶ represents an alkylene group containing a hetero atom, Z represents a poly (N-acylalkylenimine) segment, and R ⁷ represents a residue of a polymerization initiator. Y represents a positive number. ]

  MWg can be understood as the mass (g / mol) of the organopolysiloxane segment per mole of the poly (N-acylalkylenimine) segment, and the functional group of the modified organopolysiloxane as the raw material compound is poly (N- 100% substitution with acylalkylenimine) corresponds to the functional group equivalent (g / mol) of the modified organopolysiloxane.

  The MWg can be obtained by the following formula using the content (Csi) of the organopolysiloxane segment constituting the main chain and the molecular weight (MWox) of the poly (N-acylalkylenimine) segment.

  The molecular weight (MWox) of the poly (N-acylalkylenimine) segment refers to a number average molecular weight measured by a gel permeation chromatography (GPC) measurement method described later, preferably 500 to 10,000, more preferably 800 to 8000, More preferably, it is 850-6000, More preferably, it is 900-4000. Thereby, the hairstyle used as the base required when making a beautiful hairstyle can be prepared easily.

  In Polysilicone-9, the weight average molecular weight of the organopolysiloxane (2) as a raw material compound is from the viewpoint of improving solubility in polar solvents such as water, ease of handling after dissolution, and setability and its sustainability. 10,000 to 200,000, more preferably 15,000 to 160,000, and even more preferably 20,000 to 120,000. The average molecular weight of the organopolysiloxane (2) as the raw material compound is a polystyrene-converted weight average molecular weight measured by GPC under the following measurement conditions.

Column: Super HZ4000 + Super HZ2000 (manufactured by Tosoh Corporation)
Eluent: 1 mM triethylamine / THF
Flow rate: 0.35mL / min
Column temperature: 40 ° C
Detector: UV
Sample: 50μL

  Polysilicone-9 has a weight average molecular weight of 12,000 to 500,000, but from the viewpoint of further improving the setting property and its sustainability, it is preferably 20,000 to 400,000, more preferably 30,000 to 300,000, and even more preferably 40,000 to 200,000. The weight average molecular weight of the organopolysiloxane of component (A) is the weight average molecular weight of the organopolysiloxane (2) as the raw material compound, the aforementioned organopolysiloxane segment and the poly (N-acylalkyleneimine) segment), and It can obtain | require from mass ratio of.

  These hair styling polymers can be used in combination of two or more as the component (A), and the content thereof is 0.01 to 10% by mass in the hair styling agent from the viewpoint of improving familiarity with the hair and uniting the hair. Furthermore, 0.02 to 8% by mass, particularly 0.05 to 6% by mass is preferable.

[(B): Plasticizer]
As described above, the condition of the complex elastic modulus of the hairdressing component in the present invention is achieved in combination with the plasticizer of component (B) even when it cannot be achieved with the hairstyling polymer of component (A) alone. In some cases, a combination of a hairdressing polymer and a plasticizer can be used for the hairdressing agent. Such plasticizers soften the film-forming polymer and lower the breaking strength. Examples thereof include a solvent having a hydroxyl group in the molecule, an ester solvent, N-hydroxyethylcarboxylic amide, and a nonionic surfactant.

  Specific examples of the solvent having a hydroxyl group in the molecule and having 3 or more carbon atoms include monohydric alcohols such as benzyl alcohol and phenoxyethanol; propylene glycol, 1,3-butylene glycol, glycerin, isopentylene glycol, hexylene glycol And polyhydric alcohols such as dipropylene glycol, polypropylene glycol (degree of polymerization 9), polyethylene glycol 600 and the like.

  Examples of ester oils include fatty acid triglycerides such as (capryl / capric acid) triglyceride and oleic acid triglyceride, neopentyl glycol dipalmitate, fatty acid esters of dihydric alcohols such as (hydroxystearic acid / stearic acid / rosinic acid) dipentaerythrityl, And fatty acid esters of monohydric alcohols such as isopropyl myristate.

  Examples of N-hydroxyethylcarboxylic acid amide include N-acetylethanolamide.

Specific examples of the nonionic surfactant include fatty acid monoglycerides such as oleic acid monoglyceride and caprylic acid monoglyceride, fatty acid diethanolamides such as palm kernel oil fatty acid diethanolamide, sorbitan monooleate, and sorbitan monolaurate. Polyoxyalkylene sorbitan fatty acid esters such as sorbitan fatty acid ester, polyoxyethylene sorbitan trioleate, polyoxyethylene sorbitan monooleate, polyoxyethylene sorbitan monostearate, polyoxyethylene sorbitan monopalmitate, isostearyl glyceryl ether, isodecyl Alkyl glyceryl ethers such as glyceryl ether, polyoxyethylene sorbitol tetraoleate, polyoxyethylene tetraoleate Fatty polyoxyethylene sorbit such Rensorubitto, polyoxyethylene (9) tridecyl ether, such as polyoxyalkylene alkyl ethers such as polyoxyethylene (9) lauryl ether.

[(C): Hydrophobic silicone]
The hair styling agent used in the present invention may further contain a hydrophobic silicone as component (C). Hydrophobic silicone smoothes the hair by lowering the surface frictional resistance of wet hair. You can smooth the movement. As a result, it is easy to perform an operation to relieve haircuts, and a beautiful hairstyle base can be created. In addition, when adjusting the flow of dry hair after finishing, the hair surface frictional resistance of wet hair is lowered to make the hair smoother and prevent entanglement, making it easier to bind and softening the surface of dry hair after finishing. By making a simple set film, it has the effect of suppressing the emergence of floating hairs and swelling over time and improving the durability of the hairstyle.

  Here, the hydrophobic silicone is mixed with an evaluation solution (purified water, preferably 50% by mass ethanol aqueous solution, most preferably 95% by mass ethanol aqueous solution) at a mass ratio of 1: 1 at room temperature and allowed to stand for 5 minutes. It shall mean silicone that does not become transparent after separation (separation, gelation or cloudiness). Note that, among commercially available silicones, emulsion type and those mixed with an organic solvent are hydrophobic silicones.

  Examples of the hydrophobic silicone include dimethylpolysiloxane, polyether-modified silicone (HLB less than 11), amino-modified silicone, carboxy-modified silicone, methylphenylpolysiloxane, fatty acid-modified silicone, alcohol-modified silicone, aliphatic alcohol-modified silicone, epoxy Examples include modified silicone, fluorine-modified silicone, cyclic silicone, and alkyl-modified silicone. Among these, dimethylpolysiloxane, polyether-modified silicone (HLB is less than 11, preferably less than 8, most preferably less than 5), and amino-modified silicone are preferable, and amino-modified silicone is particularly preferable.

  Examples of dimethylpolysiloxane include those represented by the general formula (c1).

[Wherein R ⁸ represents Si (CH ₃ ) ₃ or a hydrogen atom, and n ¹ represents a number of 3 to 20000. ]

  Dimethylpolysiloxane includes silicone oil (number average degree of polymerization less than 1000) and silicone gum (number average degree of polymerization of 1000 or more). Commercially available silicone oils include the SH200 series (SH200 C Fluid 1CS, 2CS, 5CS, 10CS, 20CS, 30CS, 50CS, 100CS, 200CS, 350CS, 500CS, 1,000CS, 5,000CS, SH200 Fluid 1.5CS, 3,000CS, 10,000CS, 12,500CS, 30,000CS, etc. (Toray Dow Corning), TSF-451 series (Momentive Performance Materials), KF- 96 series (Shin-Etsu Chemical Co., Ltd.). Moreover, what made these silicone oil into an emulsion can also be used.

  Commercial products of silicone gum include SH200 series (SH200 Fluid 60,000CS, 100,000CS, 1,000,000CS, etc .; Toray Dow Corning), TSF451-100MA (Momentive Performance Materials), BY11-026 (Toray・ Dow Corning: Diluted solution of highly polymerized silicone with low viscosity silicone), KF9008 (Shin-Etsu Chemical; Diluted solution of highly polymerized silicone with cyclic silicone), BY22-050A (Toray Dow Corning: Cationic emulsion of highly polymerized silicone ), BY22-060 (Toray Dow Corning; Cationic emulsion of solution obtained by diluting highly polymerized silicone with low viscosity silicone), BY22-020 (Toray Dow Corning, Inc .; cation of solution obtained by diluting highly polymerized silicone with liquid paraffin) Emulsion), KM904 (Shin-Etsu Chemical Co., Ltd.) Include the cationic emulsion), and the like.

  Polyether-modified silicone is a general term for polyoxyethylene / methylpolysiloxane copolymer, poly (oxyethylene / oxypropylene) methylpolysiloxane copolymer, and the like, and is represented by the general formula (c2) or (c3). Things.

Wherein, R ⁹ represents a hydrogen atom or an alkyl group having 1 to 12 carbon atoms, n ² is 1 - 2000, m ² is 1 to 1000, a ¹ is 0, b ¹ is 0 to 50, c ¹ represents 0 to 50, and b ¹ + c ¹ ≧ 1. ]

  Commercially available polyether-modified silicones with an HLB of less than 11 include SH3775M, SS-2805 (above, Toray Dow Corning), KF-6015, KF-6016, KF-6017, KF-6029 (above, Shin-Etsu Chemical) Company).

  The amino-modified silicone may have an amino group or an ammonium group, and may be either an amino-modified silicone oil in which all or part of the terminal hydroxyl groups are blocked with a methyl group or the like, or amodimethicone in which the terminals are not blocked. And those represented by the following general formula (c4) or (c5).

[Wherein, R ¹⁰ represents Si (CH ₃ ) ₃ or a hydrogen atom, R ¹¹ represents an alkylene group having 2 to 8 carbon atoms, n ³ represents a number of 1 to 20000, and m ³ represents 1 to 2000. A ² represents a number of 0 to 3, and the nitrogen content is preferably 0.02 to 4% by mass, particularly 0.1 to 1% by mass. ]

Commercially available amino-modified silicones include SF8451C (Toray Dow Corning, viscosity 600mm ² / s, nitrogen content 0.8% by mass), SF8452C (Toray Dow Corning, viscosity 700mm ² / s, nitrogen content 0.2% by mass) , SF8457C (Toray Dow Corning, viscosity 1200mm ² / s, nitrogen content 0.8% by mass), KF8003 (Shin-Etsu Chemical, viscosity 1850mm ² / s, nitrogen content 0.7% by mass), KF8005 (Shin-Etsu Chemical, viscosity 1200mm ² / s, nitrogen content 0.1% by mass), KF867 (Shin-Etsu Chemical Co., viscosity 1300mm ² / s, nitrogen content 0.8% by mass), KF8012 (Shin-Etsu Chemical Co., Ltd., viscosity 90mm ² / s, nitrogen content 0.6% by mass), etc. Modified silicone oil, SM8704C (Toray Dow Corning, nitrogen content 0.8 mass%), SM8904C (Toray Dow Corning, nitrogen content 0.3 mass%), BY22-079 (Toray Dow Corning, nitrogen content 0.6 mass%) And amodimethicone emulsion. Also, CF1046 (Toray Dow Corning, Nitrogen), which is a mixture of dimethylpolysiloxane (number average degree of polymerization 550), dimethylpolysiloxane (number average degree of polymerization 2700) and amino-modified silicone (mass ratio 10: 3.7: 2.9) A content of 0.14% by mass) can also be suitably used.

[(D): Cationic surfactant]
From the viewpoint of facilitating the operation of alleviating hair regrowth by imparting smoothness to the hair, and smoothing the movement of the fingers and the hands when drying the hair, to the hairdressing agent used in the present invention. Furthermore, a cationic surfactant can be contained as component (D). Examples of the cationic surfactant include quaternary ammonium salts represented by the following general formula (d1).

[In the formula, R ¹² and R ¹³ each independently represent a hydrogen atom, an alkyl group having 1 to 28 carbon atoms or a benzyl group, and simultaneously become a hydrogen atom or a benzyl group; Except when it becomes an alkyl group. An ⁻ represents an anion. ]

Here, one of R ¹² and R ¹³ is preferably an alkyl group having 16 to 24 carbon atoms, more preferably 22 alkyl groups, particularly a linear alkyl group, and the other is a lower alkyl group having 1 to 3 carbon atoms, particularly A methyl group is preferred. Examples of the anion An ^- include halide ions such as chloride ions and bromide ions; organic anions such as ethyl sulfate ions and methyl carbonate ions. Halide ions, particularly chloride ions are preferred.

  As the cationic surfactant, mono long-chain alkyl quaternary ammonium salts are preferable, and specific examples include cetyltrimethylammonium chloride, stearyltrimethylammonium chloride, aralkyltrimethylammonium chloride, and behenyltrimethylammonium chloride. Stearyl trimethyl ammonium and behenyl trimethyl ammonium chloride are preferable.

〔solvent〕
The hairdressing agent used in the present invention preferably further contains ethanol and / or water as a solvent. These contents are preferably 4 to 98.4% by mass, more preferably 30 to 98% by mass in the hairdressing agent used in the present invention, from the viewpoint of improving the solubility of the polymer and plasticizer contained in the cosmetic. 50-95 mass% is especially preferable.

[Other optional ingredients]
In addition to the above-mentioned components, components used in normal hair cosmetics can be blended in the hairdressing agent used in the present invention according to the purpose. Such components include cationic polymers, oils, thickeners, anti-dandruff agents, vitamins, bactericides, anti-inflammatory agents, chelating agents, moisturizers (pantenol, etc.), pH adjusters, dyes, pigments, etc. Colorants, plant extracts, pearling agents, fragrances, ultraviolet absorbers, antioxidants and the like.

  The hairdressing agent used in the present invention can be used in a jar, a pump dispenser, an aerosol can, a pump mist, or a non-aerosol foamer container (for example, a pump former or a squeeze foamer). Among these, it is preferable to use in a pump dispenser or a non-aerosol foamer container.

● Each hair styling process [process (a)]
In this step, a hair styling agent that satisfies the above-described conditions is applied to at least the roots of hair that is entirely moist.

  The hair to which the hair styling agent is applied must be moist throughout. Since wet hair has broken hydrogen bonds inside the hair and the hair is soft, it is suitable for repairing hairline. On the other hand, when the hair is dripping and dripping from the hair, the applied hair styling agent will flow and it will take time to dry, so it should be damp enough to prevent the water from dripping. is there. Preferably, after applying water to the hair, it is in a towel-dried state or a wetness comparable to this.

  In addition, it is necessary to correct the root of the hair in order to repair the hairline. That is, it is necessary to apply the hair styling agent to at least the root, and a beautiful hairstyle base cannot be formed only by the middle part to the tip part of the part other than the root.

  Here, the root of the hair does not necessarily refer only to the hairline (contact point) of the scalp and hair, but generally refers to the entire hair part of the part called “root” that is engaged in hair care, and usually the scalp and hair It refers to the hair part in the range from the hairline (contact point) to 5 cm in the hair tip direction.

  The amount of the hairdressing agent applied to the hair is preferably 0.0005 to 0.5, more preferably 0.001 to 0.3, and particularly preferably 0.005 to 0.2 in terms of mass ratio (hairdressing agent / hair).

(Step (b))
In this step, drying is started by blowing air on the base of the hair.

  By starting drying from the root and first eliminating the hair growth at the root, the hair part from the middle of the hair can be dried along the hair flow at the root, resulting in beautiful styling. Become. However, drying may be started from the root portion first, and even if the root portion does not completely dry, the entire drying may be performed in a slightly wet state.

  Moreover, it is preferable to start drying of the base of the hair from any hair on the neck, back of the head, or temporal. Since these positions are difficult to dry, starting the drying from these positions can suitably remove the entire sacrificial ginger.

  In order to suitably dry the root of the hair in this step, it is preferable to dry the hair while raising the hair and raising the root. In this step, it is preferable to blow air to the base of the hair while moving the fingers in a zigzag while the fingers are brought into contact with the scalp and the hair is lifted up by the hand combs. In this way, (1) it leads to lifting the root, (2) can remove the hairline, (3) can efficiently send the wind to the root of the hair, It is easier to dry from.

(Step (c))
The whole hair is completely dried by blowing air.
If the drying is inadequate (if the drying is stopped in the raw state), the quality of the base style will be insufficient and the finish will be inadequate, and the style retention will be poor.

  Measurement and calculation of the complex elastic modulus (G *) of the hair styling component in the following examples and comparative examples were performed as follows.

○ Film formation of sample to be measured Pour 10 mL of each hairdressing agent into a Teflon (registered trademark) petri dish with a diameter of 5 cm, and leave it for 2 days in an environment of 40 ° C, 20% humidity, and 1013.25 hPa. Subsequently, in order to evaporate and remove the remaining solvent, it is left in a vacuum dryer at a vacuum degree of 5.33 kPa for 24 hours. Then, carefully peel off the film remaining on the bottom of the petri dish.
In film formation of the sample, care should be taken so that bubbles do not enter and that there is no deterioration due to heat or the like. If air bubbles enter or deteriorate, the sample is formed again.
However, in Comparative Example 1, since PEG-600 was liquid, it was used for measurement as it was.

○ Measurement conditions and measuring equipment for measuring elastic modulus of sample to be measured: MCR500 manufactured by Paar Physica
・ Measurement cell: Diameter 6mm, grooved parallel plate (When component (A) is liquid, diameter 75mm, cone plate CP-75-2)
・ Measurement frequency: 2Hz
・ Measurement temperature: 30 ℃
・ Measurement strain: Within linear range (strain 0.01%)
For Examples 1 to 4 and Comparative Example 2, the sample formed by the above method is sandwiched between parallel plates, heated and melted in a nitrogen atmosphere, and the plate interval is reduced to 1.3 mm. In the molten state, the portion of the film protruding is scraped off to complete the sample mounting. Thereafter, the temperature is lowered to 30 ° C. at a rate of about 10 ° C./min and held for 5 minutes.
For Comparative Example 1, PEG-600 is sandwiched between cone plates CP-75-2, and sample mounting is completed.

Calculation of complex elastic modulus From the storage elastic modulus (G ′) and the loss elastic modulus (G ″), the complex elastic modulus (G *) is calculated according to the following formula.
G * = [(G ') ² + (G ") ² ] ^1/2

Examples 1-4 and Comparative Examples 1-2
Hair styling agents shown in Table 1 were prepared. Using these hair styling agents, hair styling was performed according to the procedure shown below and evaluated according to the following methods and standards. The results are shown in Table 1.

-Hair styling procedure Cut the wig (No.775S) manufactured by Beaulux Co., Ltd. so that the length of the hair is medium length. The wig is washed with a plain shampoo (Kurel shampoo manufactured by Kao Co., Ltd.) and towel-dried, and then the hair styling agent described in Examples or Comparative Examples is pump dispenser (spray particle size when discharged is 50 to 100 μm) 4g was applied to the whole wig's hair, and it was made to adapt to the whole with the comb of the eyes. Then, it dried with the warm air of the blow dryer (Panasonic Ionity EH5305P). The drying procedure was such that the hair was lifted while moving one hand so that warm air spread over the root of the wig hair, and then the entire hair was dried. The evaluation during this operation was evaluated by 10 expert panelists from the following viewpoints.

・ Evaluation method ・ Standard “Ease of drying (Ease of making base style)”
10 expert panelists voted for the following evaluation criteria, and the category with the most votes was used as the evaluation result.
A: Drying speed is not too slow and not too fast, and hairstyle is easy to adjust B: Drying speed is too slow and takes too much time C: Drying speed is too fast, so hairstyle cannot be adjusted well

`` Dry hair feel ''
A five-step sensory evaluation was performed according to the following criteria.
5 points: Good, 4 points: Slightly good, 3 points: Neither can be said, 2 points: Not good, 1 point: Not good
Based on the total score of 10 people, the following criteria were used.
◎: 43-50 points ○: 35-42 points ○ △: 27-34 points △: 19-26 points ×: 10-18 points

“Performance of base style”, “Feeling of finish (smoothness, no stickiness, no stickiness)”
For the wigs finished by the above-mentioned hair styling procedure, 10 professional panelists performed a five-step sensory evaluation on the quality of the base style, smoothness, non-stickiness, and non-stickiness.
5 points: Good, 4 points: Slightly good, 3 points: Neither can be said, 2 points: Not good, 1 point: Not good
Based on the total score of 10 people, the following criteria were used.
◎: 43-50 points ○: 35-42 points ○ △: 27-34 points △: 19-26 points ×: 10-18 points

"Must have a style when given vibration"
10 panelists specializing in the hair style after fixing the wig finished in the hair styling procedure on AS-1N Universal Shaker AS-1N, shaking width 40mm, frequency 3Hz, vibration for 15 minutes However, a five-step sensory evaluation was performed according to the following criteria.
5 points: Hair style hardly changes, 4 points: Hair style has not changed much, 3 points: Neither can be said, 2 points: Hair style is slightly broken, 1 point: Hair style is quite Collapsed
Based on the total score of 10 people, the following criteria were used.
◎: 43-50 points ○: 35-42 points ○ △: 27-34 points △: 19-26 points ×: 10-18 points

Comparative Examples 3 to 7 (Comparison with Example 2)
Evaluation was performed in the same manner as in Example 2 except that the same hair styling agent as in Example 2 was used and the hair styling procedure was changed as shown in Table 2 (the adopted procedure was indicated by *). The results are shown in Table 2.

Formulation Example 1
(Number is active amount)
Water remaining Ethanol 15.0
Polysilicone-9 (Elastomer OS-88, Kao) 2.0
Amino-modified silicone emulsion (SM8904 Cosmetic Emulsion, Toray Dow Corning) 1.0
Setrimonium chloride (Coatamine 60W, Kao) 0.6

Claims (8)

A hair styling method in which operations are performed in the order of the following steps (a) to (c).
Step (a): A hair-styling polymer [component (A)] or a hair-styling polymer [component (A)] and a plasticizer thereof [component (B)] as a hair-styling component, A hair styling agent having a complex elastic modulus (G *) of 1.0 × 10 ^{3 to} 1.0 × 10 ⁹ is applied to at least the roots of the hair that has been moistened to the extent that water does not drip.
Step (b): Drying is started by blowing air to the base of the hair.
Step (c): The entire hair is completely dried by blowing air.   The hair styling method according to claim 1, wherein the hair to which the hair styling agent is applied as a whole is wet after applying water to the hair.   The hair styling method according to claim 1 or 2, wherein the amount of the hair styling agent applied to the hair in step (a) is in the range of 0.0005 to 0.5 in terms of mass ratio (hair styling agent / hair).   The hair styling method according to any one of claims 1 to 3, wherein the hair root is dried in the step (b) in a state where the hair is lifted and the root is raised.   The hair styling method according to any one of claims 1 to 4, wherein drying of the base of the hair in the step (b) is started from any hair of a neckline, occipital region, and temporal region.   The hair styling according to any one of claims 1 to 5, wherein the air blowing to the base of the hair in the step (b) is performed while moving the fingers zigzag along the head while the fingers are brought into contact with the scalp and the hair is lifted by a hand comb. Method. The hair styling method according to any one of claims 1 to 6, wherein the hair styling agent further contains a component (C).
Component (C): Hydrophobic silicone The hair styling method according to any one of claims 1 to 7, wherein the hair styling agent further contains a component (D).
Ingredient (D): Cationic surfactant