JP2022163985A - Hair cosmetic - Google Patents

Abstract

To provide a hair cosmetic that can suppress spreading of hair during drying after washing, and a hair treatment method.SOLUTION: The present invention discloses [1] a hair cosmetic that contains (A) a cationic polymer containing a diallyl quaternary ammonium salt as a constitutional unit, (B) an anionic polysaccharide derivative, and (C) diethylene glycol monoalkyl ether, and [2] a hair treatment method that includes the steps of applying the hair cosmetic to hair and rinsing the hair cosmetic-applied hair with water.SELECTED DRAWING: None

Description

The present invention relates to a hair cosmetic and a hair treatment method.

In recent years, hair cosmetics are increasingly expected to have a conditioning effect that can impart smoothness, softness, manageability, and the like to the hair. Techniques for imparting smoothness, softness, manageability, etc. to hair by blending cationic polymers and anionic polymers have already been reported.

For example, Patent Document 1 discloses (A) a cationic polymer having a charge density of 5.0 meq/g or more and 7.0 meq/g or less, and (B) a weight average molecular weight of 500 or more and 50,000 or less represented by a specific chemical formula. can improve the feel and appearance of damaged hair as if it were healthy hair, and especially improve the finger combability of wet hair and the manageability of dry hair. It is described that these effects can be maintained without being impaired even by repeated hair washing.

Patent Document 2 discloses (A) a cationic polymer having a charge density of 5.0 meq/g or more and 7.0 meq/g or less, and (B) a hydrogen atom of a hydroxyl group of a polysaccharide compound having a structural unit represented by a specific chemical formula. is substituted with a group —(CH ₂ ) _m COO ^— (m is an integer of 1 to 5), and the average degree of substitution by the group per structural unit is 0.5 or more and 2.0 or less , Some of the hydrogen atoms of the remaining hydroxyl groups may be substituted with straight- or branched-chain alkyl groups and/or alkylene groups having 1 to 40 carbon atoms, and the viscosity of a 2% by weight aqueous solution at 25° C. is 0.5. A hair cosmetic containing an anionic polysaccharide derivative with a viscosity of 5 mPa·s or more and 800 mPa·s or less can improve the feel and appearance of damaged hair like healthy hair, and particularly improve the finger combability of wet hair. It is stated that it can improve the manageability of dry hair and that these effects can be maintained without being impaired by repeated shampooing.

JP 2015-151374 A JP 2015-13855 A

For example, people with hair that has strong curls or other peculiarities have the problem that the hair spreads greatly when dried after washing. A person with particularly curly hair may experience a phenomenon in which the width of the hair expands while the length of the hair shrinks during drying after washing. Therefore, hair styling requires a large amount of hair cosmetics, time, and trouble.
The techniques described in Patent Literatures 1 and 2 have room for improvement in terms of suppressing the spreading of the hair during drying after washing for such hair with strong peculiarities.
In other words, conventional hair cosmetics are required to be further improved from the viewpoint of suppressing spread of hair during drying after washing.

TECHNICAL FIELD The present invention relates to a hair cosmetic and a hair treatment method that can suppress spreading of hair during drying after washing.

The present inventors have found that a hair cosmetic containing (A) a cationic polymer containing a diallyl quaternary ammonium salt as a structural unit, (B) an anionic polysaccharide derivative, and (C) diethylene glycol monoalkyl ether is The inventors have found that the spread of hair during drying can be effectively suppressed, and have completed the present invention.

That is, the present invention relates to the following [1] and [2].
[1] A hair cosmetic containing the following components (A) to (C).
(A) a cationic polymer containing a diallyl quaternary ammonium salt as a structural unit; (B) an anionic polysaccharide derivative; and a step of rinsing the hair to which the hair cosmetic has been applied with water.

ADVANTAGE OF THE INVENTION According to this invention, the hair cosmetics and hair treatment method which can suppress the spread of hair by drying after washing can be provided.

FIG. 10 is a diagram for explaining the criteria for evaluation of unity of hair bundles for evaluation in Examples, and is a photograph showing a state in which the upper ends of hair bundles are fixed and hung, as viewed from the front.

[Hair cosmetics]
The hair cosmetic composition of the present invention contains the following components (A) to (C).
(A) a cationic polymer containing a diallyl quaternary ammonium salt as a structural unit (B) an anionic polysaccharide derivative (C) diethylene glycol monoalkyl ether In the present invention, "containing component X" means "component shall be regarded as having the same meaning as "composed of X".

According to the hair cosmetic composition of the present invention, it is possible to suppress the spreading of hair during drying after washing. Therefore, it is possible to reduce the time and labor required for styling particularly curly hair and other peculiar hair, and it can be suitably applied.

Although the reason why the effect of the present invention is exhibited by the hair cosmetic composition of the present invention having the above structure is not clear, it is speculated as follows.
The hair cosmetic composition of the present invention contains a cationic polymer containing a diallyl quaternary ammonium salt as a structural unit as component (A), an anionic polysaccharide derivative as component (B), and a diethylene glycol monoalkyl ether as component (C). do.
Component (A), which is a cationic polymer, and component (B), which is an anionic polymer, interact with each other to form a hydrophilic composite gel capable of hydrophilizing and modifying the hair surface. is possible. Furthermore, component (C), which is diethylene glycol monoalkyl ether, enters into the composite gel and can improve the hydrophilicity and water retention of the composite gel.
Then, when rinsing the hair to which the hair cosmetic composition of the present invention is applied, the composite gel is believed to precipitate on the hair surface, forming a composite gel film excellent in hydrophilicity and water retention on the hair surface. .
Since the hair on which such a composite gel film having excellent hydrophilicity and water retention is formed contains a large amount of water on the surface, the binding force due to the meniscus force between the hairs is strengthened, and the cohesiveness of the hair can be improved. Conceivable.
As described above, the hair cosmetic composition of the present invention improves the hydrophilicity and water retention of the hair surface by combining the components (A) to (C). Since the binding force can be strengthened, it is thought that spreading of the hair during drying after washing can be suppressed.
Furthermore, the hair cosmetic of the present invention can strengthen the binding force due to the meniscus force between hairs when drying after washing, and can fix the shape of the hair. It is considered that shrinkage of hair can also be effectively suppressed.

Examples of the hair cosmetics of the present invention include hair cleansers such as hair shampoos, hair rinses, hair conditioners, hair treatments, hair packs, and hair styling agents. Among these, from the viewpoint of further exhibiting the effect of the present invention, the one that is used after washing the hair is preferable, and the one that is used after being applied to the hair and then rinsed is more preferable. From this point of view, the hair cosmetic of the present invention is preferably a hair rinse, hair conditioner, hair treatment, hair pack or hair styling agent.
The dosage form of the hair cosmetic composition of the present invention can be, for example, any dosage form such as liquid, foam, paste or cream. Among these, liquid, paste or cream is preferable, and liquid is more preferable, from the viewpoint of ease of use.

<Component (A): Cationic polymer>
The hair cosmetic composition of the present invention contains a cationic polymer containing a diallyl quaternary ammonium salt as a structural unit as component (A). As used herein, the term "cationic polymer" refers to a polymer having a cationic group or a group that can be ionized to become a cationic group (hereinafter, such groups are collectively referred to as "cationic groups").
The cationic polymer containing a diallyl quaternary ammonium salt as a structural unit has a skeleton represented by the following formula (1) or (2) from the viewpoint of further suppressing spreading and shrinking of the hair during drying after washing. things are preferred.

式中、Ｒ^１及びＲ^２は同一でも異なってもよく、炭素数１以上１８以下のアルキル基、アリール基（フェニル基等）、ヒドロキシアルキル基、アミドアルキル基、シアノアルキル基、アルコキシアルキル基又はカルボアルコキシアルキル基を示し、Ｒ^３及びＲ^４は同一でも異なってもよく、水素原子、炭素数１以上３以下のアルキル基又はフェニル基を示し、Ｘ^－は陰イオン（塩化物イオン、臭化物イオン、ヨウ化物イオン、硫酸アニオン、スルホン酸アニオン、メチル硫酸アニオン、リン酸アニオン、硝酸アニオン等）を示す。
式中、Ｒ^１及びＲ^２は炭素数１以上４以下のアルキル基が好ましく、メチル基がより好ましく、そして、Ｒ^３及びＲ^４は水素原子が好ましい。

In the formula, R ¹ and R ² may be the same or different, and may be an alkyl group having 1 to 18 carbon atoms, an aryl group (such as a phenyl group), a hydroxyalkyl group, an amidoalkyl group, a cyanoalkyl group, an alkoxyalkyl group, or represents a carboalkoxyalkyl group, R ³ and R ⁴ may be the same or different, represents a hydrogen atom, an alkyl group having 1 to 3 carbon atoms or a phenyl group, X ^- represents an anion (chloride ion, bromide ion , iodide ion, sulfate anion, sulfonate anion, methyl sulfate anion, phosphate anion, nitrate anion, etc.).
In the formula, R ¹ and R ² are preferably alkyl groups having 1 to 4 carbon atoms, more preferably methyl groups, and R ³ and R ⁴ are preferably hydrogen atoms.

The diallyl quaternary ammonium salt polymer preferably contains a structural unit represented by the formula (1) or (2) in one molecule from the viewpoint of further suppressing the spread and shrinkage of the hair during drying after washing. is 30 mol% or more, more preferably 40 mol% or more, still more preferably 45 mol% or more, still more preferably 50 mol% or more, still more preferably 55 mol% or more, and preferably 100 mol% or less, more preferably It contains 90 mol % or less, more preferably 80 mol % or less, more preferably 75 mol % or less. Taking these points together, the diallyl quaternary ammonium salt polymer preferably contains 30 mol% or more and 100 mol% or less of the structural unit represented by the formula (1) or (2) in one molecule, and more The content is preferably 40 mol% to 90 mol%, more preferably 45 mol% to 80 mol%, still more preferably 50 mol% to 75 mol%, still more preferably 55 mol% to 75 mol%.
Specific examples of the cationic polymer containing a diallyl quaternary ammonium salt as a structural unit include those represented by the following formula (3) or (4).

式中、Ｒ^１、Ｒ^２及びＸ^－は、前記式（１）又は（２）と同じ意味を示す。ｐ、ｑ及びｒはモル比を示し、ｐ＋ｑ＋ｒ＝１００、ｐ＜ｑである。式中、Ｒ^１及びＲ^２は炭素数１以上４以下のアルキル基が好ましく、メチル基がより好ましい。

In the formula, R ¹ , R ² and X ^- have the same meanings as in formula (1) or (2) above. p, q and r indicate molar ratios, p+q+r=100, p<q. In the formula, R ¹ and R ² are preferably alkyl groups having 1 to 4 carbon atoms, more preferably methyl groups.

p is preferably 0 or more, more preferably 10 or more, still more preferably 20 or more, still more preferably 25 or more, and preferably It is 70 or less, more preferably 60 or less, still more preferably 55 or less, still more preferably 50 or less, and even more preferably 45 or less. Taking these points together, p is preferably 0 or more and 70 or less, more preferably 10 or more and 60 or less, still more preferably 20 or more and 55 or less, still more preferably 25 or more and 50 or less, still more preferably 25 or more and 45 or less. .
q is preferably 30 or more, more preferably 40 or more, still more preferably 45 or more, still more preferably 50 or more, and still more preferably 55 or more, from the viewpoint of further suppressing spreading and shrinking of the hair during drying after washing. and preferably 100 or less, more preferably 90 or less, even more preferably 80 or less, and even more preferably 75 or less. Taking these points together, q is preferably 30 to 100, more preferably 40 to 90, even more preferably 45 to 80, even more preferably 50 to 75, still more preferably 55 to 75. .
r is preferably 0 to 50, more preferably 0 to 25, even more preferably 0 to 10, still more preferably 0 to 5, from the viewpoint of further suppressing spreading and shrinking of the hair during drying after washing. Below, more preferably 0 or more and 1 or less.

Among these, a homopolymer of dimethyldiallylammonium chloride (INCI name: Polyquaternium-6), a copolymer of dimethyldiallylammonium chloride and acrylic acid, from the viewpoint of further suppressing spreading and shrinking of hair during drying after washing. (INCI name: Polyquaternium-22), a copolymer of dimethyldiallylammonium chloride and acrylamide (INCI name: Polyquaternium-7), and a copolymer of dimethyldiallylammonium chloride, acrylic acid and acrylamide (INCI name: Polyquaternium- 39), preferably at least one selected from homopolymers of dimethyldiallylammonium chloride and copolymers of dimethyldiallylammonium chloride and acrylic acid, and more preferably at least one selected from copolymers of dimethyldiallylammonium chloride and acrylic acid. is more preferred.

Specific examples of the homopolymer of dimethyldiallylammonium chloride include Marquat 100 (manufactured by Lubrizol Co., Ltd., charge density 6.2 meq/g, weight average molecular weight 150,000). Specific examples of the copolymer include Marquat 295 (manufactured by Lubrizol Co., charge density 6.0 meq/g, weight average molecular weight 190,000), Marquat 280 (manufactured by Lubrizol Co., charge density 4.5 meq/ g, weight average molecular weight 450,000), Marquat 280NP (manufactured by Lubrizol Co., charge density 4.5 meq/g, weight average molecular weight 450,000), and the like.

The weight-average molecular weight of component (A) is preferably 10,000 or more, more preferably 50,000 or more, and still more preferably 100,000 or more, from the viewpoint of further suppressing spread and shrinkage of hair during drying after washing. and preferably 3,000,000 or less, more preferably 1,000,000 or less, and still more preferably 800,000 or less from the viewpoint of obtaining a good feel. Taking these viewpoints together, the weight average molecular weight of component (A) is preferably 10,000 or more and 3,000,000 or less, more preferably 50,000 or more and 1,000,000 or less, and still more preferably 100,000. above 800,000 and below.
Here, the weight average molecular weight can be measured, for example, by gel permeation chromatography (GPC) under the following conditions.
Mobile phase: 50 mM LiBr, 1% CH3COOH/ethanol:water = ₃ :7
Column: TSK gel α-M (two in series)
Standard substance: Polyethylene glycol

Component (A) may be used alone or in combination of two or more.

The content of component (A) in the hair cosmetic composition of the present invention is preferably 0.10% by mass or more, more preferably 0.20%, from the viewpoint of further suppressing spread and shrinkage of hair during drying after washing. % by mass or more, more preferably 0.30% by mass or more, more preferably 0.35% by mass or more, and from the same viewpoint, preferably 10.0% by mass or less, more preferably 5.0% by mass or less, More preferably 2.0% by mass or less, more preferably 1.0% by mass or less, still more preferably 0.80% by mass or less, still more preferably 0.60% by mass or less, still more preferably 0.45% by mass or less be. Taking these viewpoints together, the content of component (A) in the hair cosmetic composition of the present invention is preferably 0.10% by mass or more and 10.0% by mass or less, more preferably 0.20% by mass or more and 5.5% by mass. 0% by mass or less, more preferably 0.30% by mass or more and 2.0% by mass or less, more preferably 0.35% by mass or more and 1.0% by mass or less, still more preferably 0.35% by mass or more and 0.80% by mass %, more preferably 0.35 mass % or more and 0.60 mass % or less, more preferably 0.35 mass % or more and 0.45 mass % or less.

<Component (B): Anionic polysaccharide derivative>
The hair cosmetic composition of the present invention contains an anionic polysaccharide derivative as component (B).
As an anionic polysaccharide derivative, for example, a part of hydrogen atoms of hydroxyl groups of a polysaccharide compound having a structural unit represented by the following formula (5) is a group —(CH ₂ ) _m COO ^— (where m is 1 or more and 5 or less). integer), the average degree of substitution by the group per structural unit is, for example, 0.5 or more and 2.0 or less, and some of the hydrogen atoms of the remaining hydroxyl groups have 1 or more and 40 or less carbon atoms Examples thereof include anionic polysaccharide derivatives optionally substituted with linear or branched alkyl groups and/or alkylene groups.

式中、Ｒは、同じであっても異なっていてもよく、水酸基で置換されていてもよい炭素数２以上４以下の直鎖又は分岐鎖のアルキレン基を示し、ｎは構成単位当たりのＲＯの平均付加モル数が０以上１０以下となる数を示す。

In the formula, R may be the same or different and represents a linear or branched alkylene group having 2 to 4 carbon atoms which may be substituted with a hydroxyl group, n is RO per structural unit indicates the number at which the average added mole number of is 0 or more and 10 or less.

In the component (B), m in the group —(CH ₂ ) _m COO ^— is preferably an integer of 1 or more and 3 or less, from the viewpoint of further suppressing spreading and shrinking of the hair during drying after washing. or 2, more preferably 1. In addition, n in the formula (5) is preferably from 0 to 5, more preferably from 0 to 3, from the viewpoint of further suppressing spreading and shrinking of the hair during drying after washing. 0 or 1 is more preferred, and 0 is even more preferred. In addition, the number of carbon atoms in R is preferably 2 or 3, more preferably 2, from the viewpoint of further suppressing spreading and shrinking of hair during drying after washing.

Polysaccharide compounds having structural units represented by formula (5), etc., constituting the anionic polysaccharide derivative of component (B) include cellulose, guar gum, starch, hydroxyethyl cellulose, hydroxyethyl guar gum, hydroxyethyl starch, and methyl cellulose. , methyl guar gum, methyl starch, ethyl cellulose, ethyl guar gum, ethyl starch, hydroxypropyl cellulose, hydroxypropyl guar gum, hydroxypropyl starch, hydroxyethyl methyl cellulose, hydroxyethyl methyl guar gum, hydroxyethyl methyl starch, hydroxypropyl methyl cellulose, hydroxypropyl methyl guar gum and At least one selected from hydroxypropylmethyl starch can be preferably used. Among these, cellulose and hydroxyethyl cellulose can be used more preferably from the viewpoint of further suppressing spread and shrinkage of hair during drying after washing.

Among the anionic polysaccharide derivatives of component (B), carboxymethyl cellulose is preferable from the viewpoint of further suppressing spread and shrinkage of hair during drying after washing.

In component (B), the average degree of substitution per structural unit of the group —(CH ₂ ) _m COO ^— is preferably 0.5 or more, from the viewpoint of further suppressing spread and shrinkage of hair during drying after washing. It is more preferably 0.6 or more, still more preferably 0.65 or more, and preferably 2.0 or less, more preferably 1.5 or less from the viewpoint of good touch. Taking these viewpoints together, the average degree of substitution per structural unit of the group —(CH ₂ ) _m COO ^— is preferably 0.5 or more and 2.0 or less, more preferably 0.6 or more and 1.5 or less, and further It is preferably 0.65 or more and 1.5 or less.

Method for Measuring Average Degree of Substitution A case where the introduced substituent is —(CH ₂ ) _m COONa will be described as an example.
The absolute-dried anionic polysaccharide derivative was wet-decomposed with sulfuric acid-hydrogen peroxide using a microwave wet ashing device (manufactured by PROLABO, trade name: "A-300"), and then subjected to an atomic absorption spectrophotometer (Hitachi Co., Ltd.). Seisakusho, trade name: "Z-6100 type") is used to measure the Na content (%) by the atomic absorption method, and the degree of substitution is calculated by the following formula.
Average degree of substitution (DS) = (x × Na content (%)) / (2300-y × Na content (%))
x: average molecular weight per unit of sugar monomer constituting the polysaccharide derivative before introduction of the anionic substituent y: increase in molecular weight due to the introduction of one substituent

Component (B) has a viscosity of a 1% by mass aqueous solution at 25° C. that is preferably 100 mPa·s or more from the viewpoint of applicability to hair and from the viewpoint of further suppressing spreading and shrinking of hair during drying after washing. , More preferably 120 mPa s or more, still more preferably 150 mPa s or more, and from the viewpoint of ease of blending and from the viewpoint of further suppressing the spreading and shrinking of hair during drying after washing, it is preferably 30,000 mPa s or less, more preferably 15,000 mPa s or less, still more preferably 10,000 mPa s or less, still more preferably 5,000 mPa s or less, still more preferably 1,000 mPa s or less, still more preferably It is 500 mPa·s or less. Taking these viewpoints together, the viscosity of the 1% by mass aqueous solution at 25° C. is preferably 100 mPa·s or more and 30,000 mPa·s or less, more preferably 120 mPa·s or more and 15,000 mPa·s or less, and still more preferably 150 mPa·s. s or more and 10,000 mPa s or less, more preferably 150 mPa s or more and 5,000 mPa s or less, still more preferably 150 mPa s or more and 1,000 mPa s or less, still more preferably 150 mPa s or more and 500 mPa s or less. . In addition, in the present invention, the viscosity of the component (B) is measured according to the method shown below.

・Method for measuring the viscosity (mPa s) of a 1% by mass aqueous solution About 2.2 g of an anionic polysaccharide derivative with a known water content was accurately weighed in a 300 mL stoppered Erlenmeyer flask, 200 g of distilled water was added, and the flask was immediately stoppered. Shake vigorously and allow the anionic polysaccharide derivative to disperse into small clumps. After leaving overnight (about 18 to 20 hours), the concentration of the aqueous solution is adjusted to 1% by mass with correction water based on the known moisture content. The corrected amount of water is calculated based on the following formula from the water content obtained separately.
Corrected amount of water (g) = anionic polysaccharide derivative sample (g) x (99 - water content of sample (%)) - 200

After completion of correction, a small rotator is placed in the Erlenmeyer flask and stirred with a magnetic stirrer for 25 minutes to completely disperse and dissolve the swollen contents. If the viscosity is too high to disperse and dissolve, transfer to a 300 mL beaker, seal with Parafilm (Bemis Flexible Packaging), and stir with a stirring blade for 25 minutes to completely disperse and dissolve the contents. Next, this solution is transferred to a 250 mL capped container (50 mm diameter×140 mm height), capped, and left in a constant temperature bath at 25° C. for 30 minutes. After confirming that the temperature is 25° C., a viscometer, a rotor, and a guard are selected and attached to the stoppered container as described below, and the viscosity is measured. Measurement is performed in order from low viscosity to high viscosity, and the measurement is completed when the display of the viscometer can be measured without shaking off.

(When the viscosity at 25°C is 2,000 mPa s or less)
If the viscosity at 25°C is 2000 mPa s or less, use a BROOKFIELD VISCOMETER (Model: LV DV-I Prime, manufactured by BROOKFIELD), LV SPINDLE (63), rotate at 25°C for 3 minutes at 60 rpm. is the value after

(When the viscosity at 25°C exceeds 2,000 mPa s and is 10,000 mPa s or less)
If the viscosity at 25 ° C exceeds 2,000 mPa s and is 10,000 mPa s or less, use BROOKFIELD VISCOMETER (Model: LV DV-I Prime, manufactured by BROOKFIELD), LVSPINDLE (64), rotation speed 60 rpm It is the value after rotating for 3 minutes at 25° C. under the conditions.

(When the viscosity at 25°C exceeds 10,000 mPa s and is 80,000 mPa s or less)
If the viscosity at 25°C exceeds 10,000 mPa s and is 80,000 mPa s or less, use a BROOKFIELD VISCOMETER with a helical stand (Model: RV DV-I Prime, manufactured by BROOKFIELD), HELIPATH SPINDLE (T-bar Spindle E(95)), the value after rotating for 3 minutes at 25°C under the condition of 60 rpm.

(When the viscosity at 25°C exceeds 80,000 mPa s)
If the viscosity at 25°C exceeds 80,000 mPa s, use a BROOKFIELD VISCOMETER (Model: RV DV-I Prime, manufactured by BROOKFIELD) with a helical stand, HELIPATH SPINDLE (T-bar spindle F (96)), rotate It is the value after rotating for 3 minutes at 25° C. under the condition of several 60 rpm.

Specific examples of component (B) include serogen F-5A, F-7A, F-907A, F-815A, F-SB, F-930A, F-3H, F-BSH-5, F-BSH-6 , F-BSH-12, F-6HS9, HE-1500F (manufactured by Daiichi Kogyo Seiyaku Co., Ltd., carboxymethyl cellulose), Sunrose F-01MC, FT-1, F04HC, APP-84, F150LC, F120MC, F600MC, F350HC , F800HC, F1400MC (manufactured by Nippon Paper Industries Co., Ltd., carboxymethyl cellulose), CMC Daicel 1105, 1110, 1130, 1150, 1205, 1210, 1220, 1230, 1240, 1250, 1330, 1180, 1190, 1380, 1390, 2200, 2260 , 2280 (manufactured by Daicel Corporation, carboxymethylcellulose), Blanose 7LF, 7M1F, 7MF, 7M8SF, 12M8P, 12M31XP (manufactured by Ashland, carboxymethylcellulose), and the like.

Component (B) may be used alone or in combination of two or more.

The content of component (B) in the hair cosmetic composition of the present invention is preferably 0.10% by mass or more, more preferably 0.20%, from the viewpoint of further suppressing spread and shrinkage of hair during drying after washing. % by mass or more, more preferably 0.30% by mass or more, more preferably 0.40% by mass or more, still more preferably 0.50% by mass or more, and still more preferably 0.55% by mass or more. , preferably 10.0% by mass or less, more preferably 5.0% by mass or less, still more preferably 2.0% by mass or less, still more preferably 1.0% by mass or less, further preferably 0.80% by mass or less, More preferably, it is 0.65% by mass or less. Taking these points together, the content of component (B) in the hair cosmetic composition of the present invention is preferably 0.10% by mass or more and 10.0% by mass or less, more preferably 0.20% by mass or more and 5.5% by mass. 0% by mass or less, more preferably 0.30% by mass or more and 2.0% by mass or less, more preferably 0.40% by mass or more and 1.0% by mass or less, still more preferably 0.50% by mass or more and 0.80% by mass % or less, more preferably 0.55 mass % or more and 0.65 mass % or less.

<Component (C): Diethylene glycol monoalkyl ether>
The hair cosmetic composition of the present invention contains diethylene glycol monoalkyl ether as component (C), and one selected from these may be used alone, or two or more thereof may be used in combination.

The terminal alkyl group of the diethylene glycol monoalkyl ether is preferably an alkyl group having 1 to 6 carbon atoms, preferably 2 to 6 carbon atoms, from the viewpoint of further suppressing spreading and shrinking of the hair during drying after washing. An alkyl group is more preferred, and an alkyl group having 2 to 4 carbon atoms is even more preferred. Specifically, one or more selected from diethylene glycol monomethyl ether, diethylene glycol monoethyl ether, diethylene glycol monopropyl ether and diethylene glycol monobutyl ether is preferable, and one or more selected from diethylene glycol monoethyl ether, diethylene glycol monopropyl ether and diethylene glycol monobutyl ether. is more preferred, and diethylene glycol monoethyl ether is even more preferred.

Component (C) may be used alone or in combination of two or more.

The content of component (C) in the hair cosmetic composition of the present invention is preferably 0.10% by mass or more, more preferably 0.20% by mass, from the viewpoint of further suppressing spread and shrinkage of hair during drying after washing. % by mass or more, more preferably 0.30% by mass or more, more preferably 0.40% by mass or more, and from the same viewpoint, preferably 5.0% by mass or less, more preferably 4.0% by mass or less, More preferably 3.0% by mass or less, more preferably 2.5% by mass or less, still more preferably 1.5% by mass or less, still more preferably 1.0% by mass or less, still more preferably 0.8% by mass or less be. Taking these points together, the content of component (C) in the hair cosmetic composition of the present invention is preferably 0.10% by mass or more and 5.0% by mass or less, more preferably 0.20% by mass or more and 4. 0% by mass or less, more preferably 0.30% by mass or more and 3.0% by mass or less, more preferably 0.40% by mass or more and 2.5% by mass or less, still more preferably 0.40% by mass or more and 1.5% by mass % or less, more preferably 0.40 mass % or more and 1.0 mass % or less, more preferably 0.40 mass % or more and 0.8 mass % or less.

In the hair cosmetic composition of the present invention, the ratio (Ac)/(Ba) of the cationic charge amount (Ac) of the component (A) to the anionic charge amount (Ba) of the component (B) is the spread of the hair upon drying after washing. And from the viewpoint of further suppressing shrinkage, it is preferably 0.5 or more, more preferably 0.6 or more, still more preferably 0.7 or more, still more preferably 0.8 or more, and still more preferably 0.9 or more. , from the same point of view, it is preferably 2.0 or less, more preferably 1.5 or less, still more preferably 1.3 or less, still more preferably 1.2 or less, and still more preferably 1.1 or less.
Taking these points together, the (Ac)/(Ba) is preferably 0.5 or more and 2.0 or less, more preferably 0.6 or more and 1.5 or less, and still more preferably 0.7 or more and 1.3. Below, more preferably 0.8 or more and 1.2 or less, still more preferably 0.9 or more and 1.1 or less.

The cationic charge amount (Ac) of component (A) in the hair cosmetic is determined as the product of the cationic charge density of component (A) and the content of component (A) in the hair cosmetic. The cationic charge density of component (A) is the number of equivalents of cationic groups (quaternary ammonium groups) per unit mass of component (A), usually milliequivalents per 1 g (unit: meq/g). is represented by The cationic charge density of component (A) can be calculated from the molecular weight of component (A) and the molar ratio of monomer constitutional units containing cationic groups in the monomer constitutional units constituting component (A).
When two or more components (A) are used, the cationic charge amount of component (A) in the hair cosmetic is determined as the sum of the respective cationic charge amounts.
As used herein, a cationic group refers to a cationic group or a group that can be ionized to become a cationic group.
Further, when component (A) is a cationic polymer having a cationic group and an anionic group, the cationic charge amount of component (A) can be calculated from the cationic amount of component (A) at the pH of the hair cosmetic composition of the present invention. It is determined based on the value after subtracting the amount.

The cationic charge density of component (A) is preferably 0.5 meq/g or more, more preferably 1.0 meq/g or more, still more preferably 2.0 meq/g or more, still more preferably 3.0 meq/g, still more preferably is 4.0 meq/g or more, and is preferably 10.0 meq/g or less, more preferably 8.0 meq/g or less, still more preferably 6.0 meq/g or less, still more preferably 5.0 meq/g or less is. Taking these viewpoints together, the cationic charge density of component (A) is preferably 0.5 meq/g or more and 10.0 meq/g or less, more preferably 1.0 meq/g or more and 8.0 meq/g or less, and still more preferably is 2.0 meq/g or more and 6.0 meq/g or less, more preferably 3.0 meq/g or less and 5.0 meq/g or less, still more preferably 4.0 meq/g or more and 5.0 meq/g or less.

The anionic charge amount (Ba) of the component (B) in the hair cosmetic is determined as the product of the anionic charge density of the component (B) and the content of the component (B) in the hair cosmetic. The anionic charge density of component (B) is the number of equivalents of anionic groups per unit mass of component (B), and is usually expressed in milliequivalents per gram (unit: meq/g).
As used herein, an anionic group refers to an anionic group or a group that can be ionized to become an anionic group.

The anionic charge density of component (B) is preferably 0.5 meq/g or more, more preferably 1.0 meq/g or more, still more preferably 2.0 meq/g or more, still more preferably 2.5 meq/g or more, and further preferably preferably 3.0 meq/g or more, and preferably 10.0 meq/g or less, more preferably 8.0 meq/g or less, even more preferably 5.0 meq/g or less, still more preferably 4.0 meq/g It is below. Taking these viewpoints together, the anionic charge density of component (B) is preferably 0.5 meq/g or more and 10.0 meq/g or less, more preferably 1.0 meq/g or more and 8.0 meq/g or less, and still more preferably is 2.0 meq/g or more and 5.0 meq/g or less, more preferably 2.5 meq/g or more and 4.0 meq/g or less, still more preferably 3.0 meq/g or more and 4.0 meq/g or less.

In the hair cosmetic composition of the present invention, the mass ratio (A)/(B) of the content of component (A) to the content of component (B) further suppresses spreading and shrinking of hair during drying after washing. From the viewpoint of the is 1.2 or less, more preferably 1.0 or less, still more preferably 0.8 or less. Taking these viewpoints together, the mass ratio (A)/(B) of the content of component (A) to the content of component (B) is preferably 0.4 or more and 2.0 or less, more preferably 0.4. It is 5 or more and 1.5 or less, more preferably 0.6 or more and 1.2 or less, still more preferably 0.6 or more and 1.0 or less, still more preferably 0.6 or more and 0.8 or less.

In the hair cosmetic composition of the present invention, the mass ratio (C/(A+B)) of the content of component (C) to the total content of components (A) and (B) is determined by the spread of hair in drying after washing and From the viewpoint of further suppressing shrinkage, the is 0.45 or more, and from the viewpoint of further suppressing the spread of hair during drying after washing, it is preferably 5.0 or less, more preferably 4.0 or less, even more preferably 3.0 or less, and still more preferably 3.0 or less. 2.5 or less, preferably 5.0 or less, more preferably 4.0 or less, even more preferably 3.0 or less, still more preferably 2 from the viewpoint of further suppressing hair shrinkage during drying after washing. 0.0 or less, more preferably 1.0 or less, more preferably 0.8 or less. Taking these points together, the mass ratio of the content of component (C) to the total content of component (A) and component (B) (C/(A+B)) is preferably 0.10 or more and 5.0 or less. , More preferably 0.15 or more and 4.0 or less, more preferably 0.20 or more and 3.0 or less, still more preferably 0.30 or more and 2.5 or less, still more preferably 0.40 or more and 2.0 or less, further It is preferably 0.45 or more and 1.0 or less, more preferably 0.45 or more and 0.8 or less.

The total content of components (A) to (C) in the hair cosmetic of the present invention is preferably 0.1% by mass or more, more Preferably 0.5% by mass or more, more preferably 1.0% by mass or more, still more preferably 1.2% by mass or more, and preferably 25.0% by mass or less, more preferably 20.0% by mass Below, more preferably 15.0% by mass or less, more preferably 10.0% by mass or less, still more preferably 5.0% by mass or less, still more preferably 3.0% by mass or less, still more preferably 2.5% by mass It is below. Taking these viewpoints together, the total content of components (A) to (C) in the hair cosmetic composition of the present invention is preferably 0.1% by mass or more and 25.0% by mass or less, more preferably 0.5% by mass. % by mass or more and 20.0% by mass or less, more preferably 1.0% by mass or more and 15.0% by mass or less, still more preferably 1.2% by mass or more and 10.0% by mass or less, still more preferably 1.2% by mass 5.0 mass % or less, more preferably 1.2 mass % or more and 3.0 mass % or less, still more preferably 1.2 mass % or more and 2.5 mass % or less.

<Other ingredients>
The hair cosmetic composition of the present invention contains an aqueous medium, depending on its mode and dosage form, from the viewpoint of ease of handling and the action and effect of the components (A) to (C). be able to.
Examples of the aqueous medium include water, lower alcohols such as ethanol and isopropyl alcohol; low-molecular-weight diols and triols having 6 or less carbon atoms such as 1,3-butylene glycol, glycerin, ethylene glycol, propylene glycol and dipropylene glycol. mentioned. Among these, one type may be used alone, or two or more types may be used in combination. Among these, water is preferably included as the aqueous medium.
The content of the aqueous medium in the hair cosmetic of the present invention is preferably 60% by mass or more, more preferably 70% by mass or more, and still more preferably 80% by mass, from the viewpoint of adjusting the hair cosmetic to an appropriate concentration and viscosity. % or more, more preferably 85 mass % or more, and from the same viewpoint, preferably 99 mass % or less, more preferably 98 mass % or less, and even more preferably 97 mass % or less. Taking these points together, the content of the aqueous medium in the hair cosmetic of the present invention is preferably 60% by mass or more and 99% by mass or less, more preferably 70% by mass or more and 98% by mass or less, and still more preferably 80% by mass. % or more and 97 mass % or less, more preferably 85 mass % or more and 97 mass % or less.

In addition, the hair cosmetic composition of the present invention may contain other ingredients as appropriate within a range that does not impair the object of the present invention. Examples of such components include, for example, pH adjusters, aromatic alcohols, surfactants, antioxidants, oils, polymers other than components (A) and (B), and anti Dandruff agents, vitamins, bactericides, anti-inflammatory agents, antiseptics, chelating agents, moisturizing agents, ceramides, coloring agents, eucalyptus polar solvent extracts, proteins obtained from mother-of-pearl shells or pearls, or hydrolysis thereof honey, royal jelly, proteins obtained from silk or hydrolysates thereof, protein-containing extracts obtained from legume seeds, panax ginseng extract, rice germ extract, fucus extract, aloe extract, lotus extract , pomegranate extract, wild rose extract, chamomilla extract, licorice extract, shell ginger leaf extract, chlorella extract, pearling agent, fragrance, pigment, UV absorber, shea butter, rose water, orange oil , eucalyptus oil, organic acids, water-soluble inorganic salts such as sodium chloride and potassium chloride.

The pH of the hair cosmetic composition of the present invention is not particularly limited as long as it is within a range that can be generally used as a hair cosmetic composition. From the point of view, the addition of an acid or base preferably is 3.0 or more, more preferably 3.2 or more, still more preferably 3.3 or more, and preferably 8.0 or less, more preferably 7.0 or less, More preferably, it is adjusted to 6.0 or less. Taking these points together, the pH of the hair cosmetic composition of the present invention is preferably 3.0 or more and 8.0 or less, more preferably 3.2 or more and 7.0 or less, and still more preferably 3.3 or more and 6.0. It is below.

<Manufacturing method>
The hair cosmetic composition of the present invention can be produced by a conventional method. For example, it can be produced by blending components (A) to (C) and, if necessary, other components, and mixing them using a known stirring device or the like.

[Hair treatment method]
The hair treatment method of the present invention has a step of applying the above hair cosmetic of the present invention to the hair.
Methods for applying the hair cosmetic to the hair include, for example, coating, spraying or casting the hair, and immersing the hair in the hair cosmetic. The hair to be applied may be dry or wet, preferably after being combed with a brush, comb or the like and then washed and wet. The hair cosmetic may be applied by hand or by rubbing, or by using a brush, comb, or the like. Moreover, the hair to which the hair cosmetic is applied may be all or part of the hair.
The amount of the hair cosmetic applied to the hair is preferably 0.03 or more, more preferably 0.1 or more, and still more preferably 0.1 or more, as a bath ratio to the weight of the hair to be applied (mass of the hair cosmetic/mass of the hair to be applied). is 0.2 or more, more preferably 0.5 or more, more preferably 1 or more, and is preferably 30 or less, more preferably 20 or less, still more preferably 15 or less. Taking these points together, the amount of the hair cosmetic applied to the hair is preferably 0.03 or more and 30 or less, preferably 0.03 or more and 30 or less. It is preferably 0.1 or more and 20 or less, more preferably 0.2 or more and 15 or less, still more preferably 0.5 or more and 15 or less, and still more preferably 1 or more and 15 or less.

After the above step, it is preferable to perform a step of rinsing the hair to which the hair cosmetic has been applied with water. In this case, it is preferable to rub the hair cosmetic into the hair after applying the hair cosmetic and before rinsing with water, or to set the time for leaving the hair cosmetic in order to allow the hair cosmetic to be sufficiently absorbed into the hair.
The time for rubbing the hair cosmetic composition into the hair is preferably 5 seconds or longer, more preferably 10 seconds or longer, still more preferably 20 seconds or longer, still more preferably 30 seconds or longer, and preferably 10 minutes or shorter, more preferably. is 5 minutes or less, more preferably 3 minutes or less. Taking all these points together, the time for rubbing the hair cosmetic composition into the hair is preferably 5 seconds to 10 minutes, more preferably 10 seconds to 5 minutes, even more preferably 20 seconds to 3 minutes, still more preferably 20 seconds to 3 minutes. It is 30 seconds or more and 3 minutes or less.
The leaving time is preferably 15 seconds or longer, more preferably 30 seconds or longer, still more preferably 1 minute or longer, and preferably 60 minutes or shorter, more preferably 30 minutes or shorter, and still more preferably 20 minutes or shorter. Taking these viewpoints together, the leaving time is preferably 15 seconds or more and 60 minutes or less, more preferably 30 seconds or more and 30 minutes or less, and still more preferably 1 minute or more and 20 minutes or less. It is also preferable to cover the hair to which the hair cosmetic has been applied with a plastic film, a cap, or the like in order to suppress evaporation of moisture while the hair is being rubbed or left to stand.
The step of rinsing with water is sufficient as long as the excess hair cosmetic on the surface of the hair can be removed, and the time for rinsing with water is preferably 5 seconds or more and 3 minutes or less. The temperature of the water may be such that it does not burden the body, preferably 15°C or higher and 50°C or lower, more preferably 25°C or higher and 45°C or lower.

After washing with water, the hair is dried naturally by towel drying or the like, or by forced drying using a dryer or the like.
By treating hair, particularly hair with strong peculiarities, with the hair cosmetic composition of the present invention as described above, it is possible to suppress spread of the hair during drying after washing. Therefore, in particular, it is possible to reduce the time and effort required for styling curly hair, and it can be suitably applied.

Preferred aspects of the hair cosmetic of the present invention are further disclosed below with respect to the above-described embodiments.

<1> A hair cosmetic containing the following components (A) to (C).
(A) Cationic polymer containing diallyl quaternary ammonium salt as a structural unit (B) Anionic polysaccharide derivative (C) Diethylene glycol monoalkyl ether

式中、Ｒは、同じであっても異なっていてもよく、水酸基で置換されていてもよい炭素数２以上４以下の直鎖又は分岐鎖のアルキレン基を示し、ｎは構成単位当たりのＲＯの平均付加モル数が０以上１０以下となる数を示す。
＜５＞ 前記成分（Ｂ）は、１質量％水溶液の２５℃における粘度が、好ましくは１００ｍＰａ・ｓ以上、より好ましくは１２０ｍＰａ・ｓ以上、更に好ましくは１５０ｍＰａ・ｓ以上であり、そして、好ましくは３０，０００ｍＰａ・ｓ以下、より好ましくは１５，０００ｍＰａ・ｓ以下、更に好ましくは１０，０００ｍＰａ・ｓ以下、更に好ましくは５，０００ｍＰａ・ｓ以下、更に好ましくは１，０００ｍＰａ・ｓ以下、更に好ましくは５００ｍＰａ・ｓ以下である、＜１＞～＜４＞のいずれかに記載の毛髪化粧料。
＜６＞ 前記成分（Ｃ）が、好ましくはジエチレングリコールモノメチルエーテル、ジエチレングリコールモノエチルエーテル、ジエチレングリコールモノプロピルエーテル及びジエチレングリコールモノブチルエーテルから選ばれる１種以上を含み、より好ましくはジエチレングリコールモノエチルエーテル、ジエチレングリコールモノプロピルエーテル及びジエチレングリコールモノブチルエーテルから選ばれる１種以上を含み、更に好ましくはジエチレングリコールモノエチルエーテルを含む、＜１＞～＜５＞のいずれかに記載の毛髪化粧料。
＜７＞ 前記成分（Ａ）及び前記成分（Ｂ）の合計含有量に対する前記成分（Ｃ）の含有量の質量比（Ｃ／（Ａ＋Ｂ））が、好ましくは０．１０以上、より好ましくは０．１５以上、更に好ましくは０．２０以上、更に好ましくは０．３０以上、更に好ましくは０．４０以上、更に好ましくは０．４５以上であり、そして、好ましくは５．０以下、より好ましくは４．０以下、更に好ましくは３．０以下、更に好ましくは２．０以下、更に好ましくは１．０以下、更に好ましくは０．８以下である、＜１＞～＜６＞のいずれかに記載の毛髪化粧料。
＜８＞ 前記成分（Ｂ）のアニオン電荷量（Ｂａ）に対する前記成分（Ａ）のカチオン電荷量（Ａｃ）の比（Ａｃ）／（Ｂａ）が、好ましくは０．５以上、より好ましくは０．６以上、更に好ましくは０．７以上、更に好ましくは０．８以上、更に好ましくは０．９以上であり、そして、好ましくは２．０以下、より好ましくは１．５以下、更に好ましくは１．３以下、更に好ましくは１．２以下、更に好ましくは１．１以下である、＜１＞～＜７＞のいずれかに記載の毛髪化粧料。
＜９＞ 前記成分（Ａ）のカチオン電荷密度は、好ましくは０．５ｍｅｑ／ｇ以上、より好ましくは１．０ｍｅｑ／ｇ以上、更に好ましくは２．０ｍｅｑ／ｇ以上、更に好ましくは３．０ｍｅｑ／ｇ、更に好ましくは４．０ｍｅｑ／ｇ以上であり、そして、好ましくは１０．０ｍｅｑ／ｇ以下、より好ましくは８．０ｍｅｑ／ｇ以下、更に好ましくは６．０ｍｅｑ／ｇ以下、更に好ましくは５．０ｍｅｑ／ｇ以下である、＜１＞～＜８＞のいずれかに記載の毛髪化粧料。
＜１０＞ 前記成分（Ｂ）のアニオン電荷密度は、好ましくは０．５ｍｅｑ／ｇ以上、より好ましくは１．０ｍｅｑ／ｇ以上、更に好ましくは２．０ｍｅｑ／ｇ以上、更に好ましくは２．５ｍｅｑ／ｇ以上、更に好ましくは３．０ｍｅｑ／ｇ以上であり、そして、好ましくは１０．０ｍｅｑ／ｇ以下、より好ましくは８．０ｍｅｑ／ｇ以下、更に好ましくは５．０ｍｅｑ／ｇ以下、更に好ましくは４．０ｍｅｑ／ｇ以下である、＜１＞～＜９＞のいずれかに記載の毛髪化粧料。
＜１１＞ 前記成分（Ｂ）の含有量に対する成分（Ａ）の含有量の質量比（Ａ）／（Ｂ）が、好ましくは０．４以上、より好ましくは０．５以上、更に好ましくは０．６以上であり、そして、好ましくは２．０以下、より好ましくは１．５以下、更に好ましくは１．２以下、更に好ましくは１．０以下、更に好ましくは０．８以下である、＜１＞～＜１０＞のいずれかに記載の毛髪化粧料。
＜１２＞ 前記成分（Ａ）～（Ｃ）の合計含有量が、好ましくは０．１質量％以上、より好ましくは０．５質量％以上、更に好ましくは１．０質量％以上、更に好ましくは１．２質量％以上であり、そして、好ましくは２５．０質量％以下、より好ましくは２０．０質量％以下、更に好ましくは１５．０質量％以下、更に好ましくは１０．０質量％以下、更に好ましくは５．０質量％以下、更に好ましくは３．０質量％以下、更に好ましくは２．５質量％以下である、＜１＞～＜１１＞のいずれかに記載の毛髪化粧料。
＜１３＞ 前記成分（Ａ）の含有量が、好ましくは０．１０質量％以上、より好ましくは０．２０質量％以上、更に好ましくは０．３０質量％以上、更に好ましくは０．３５質量％以上であり、そして、好ましくは１０．０質量％以下、より好ましくは５．０質量％以下、更に好ましくは２．０質量％以下、更に好ましくは１．０質量％以下、更に好ましくは０．８０質量％以下、更に好ましくは０．６０質量％以下、更に好ましくは０．４５質量％以下である、＜１＞～＜１２＞のいずれかに記載の毛髪化粧料。
＜１４＞ 前記成分（Ｂ）の含有量が、好ましくは０．１０質量％以上、より好ましくは０．２０質量％以上、更に好ましくは０．３０質量％以上、更に好ましくは０．４０質量％以上、更に好ましくは０．５０質量％以上、更に好ましくは０．５５質量％以上であり、そして、好ましくは１０．０質量％以下、より好ましくは５．０質量％以下、更に好ましくは２．０質量％以下、更に好ましくは１．０質量％以下、更に好ましくは０．８０質量％以下、更に好ましくは０．６５質量％以下である、＜１＞～＜１３＞のいずれかに記載の毛髪化粧料。
＜１５＞ 前記成分（Ｃ）の含有量が、好ましくは０．１０質量％以上、より好ましくは０．２０質量％以上、更に好ましくは０．３０質量％以上、更に好ましくは０．４０質量％以上であり、そして、好ましくは５．０質量％以下、より好ましくは４．０質量％以下、更に好ましくは３．０質量％以下、更に好ましくは２．５質量％以下、更に好ましくは１．５質量％以下、更に好ましくは１．０質量％以下、更に好ましくは０．８質量％以下である、＜１＞～＜１４＞のいずれかに記載の毛髪化粧料。
＜１６＞ 前記毛髪化粧料のｐＨが、好ましくは３．０以上、より好ましくは３．２以上、更に好ましくは３．３以上、そして、好ましくは８．０以下、より好ましくは７．０以下、更に好ましくは６．０以下である、＜１＞～＜１５＞のいずれかに記載の毛髪化粧料。
＜１７＞ 水性媒体を含有する、＜１＞～＜１６＞のいずれかに記載の毛髪化粧料。
＜１８＞ 前記水性媒体が、好ましくは水、エタノール、イソプロピルアルコール、１，３－ブチレングリコール、グリセリン、エチレングリコール、プロピレングリコール、及びジプロピレングリコールから選択される少なくとも一種を含み、より好ましくは水を含む、＜１７＞に記載の毛髪化粧料。
＜１９＞ 前記水性媒体の含有量が、好ましくは６０質量％以上、より好ましくは７０質量％以上、更に好ましくは８０質量％以上、更に好ましくは８５質量％以上であり、そして、好ましくは９９質量％以下、より好ましくは９８質量％以下、更に好ましくは９７質量％以下である、＜１７＞又は＜１８＞に記載の毛髪化粧料。
＜２０＞ 好ましくはヘアシャンプー、ヘアリンス、ヘアコンディショナー、ヘアトリートメント、ヘアパック又はヘアスタイリング剤であり、より好ましくはヘアリンス、ヘアコンディショナー、ヘアトリートメント、ヘアパック又はヘアスタイリング剤である、＜１＞～＜１９＞のいずれかに記載の毛髪化粧料。
＜２１＞ 好ましくは液体状、泡状、ペースト状又はクリーム状であり、より好ましくは液体状、ペースト状又はクリーム状であり、更に好ましくは液体状である、＜１＞～＜２０＞のいずれかに記載の毛髪化粧料。
＜２２＞ ＜１＞～＜２１＞のいずれかに記載の毛髪化粧料を毛髪に適用する工程と、前記毛髪化粧料を適用した毛髪を水ですすぐ工程とを有する、毛髪処理方法。
＜２３＞ ＜１＞～＜２１＞のいずれかに記載の毛髪化粧料の、洗浄後の乾燥における毛髪の広がりを抑制するための使用。
＜２４＞ ＜１＞～＜２１＞のいずれかに記載の毛髪化粧料の、シュリンク抑制のための使用。
＜２５＞ ＜１＞～＜２１＞のいずれかに記載の毛髪化粧料を適用する、洗浄後の乾燥における毛髪の広がりを抑制する方法。
＜２６＞ ＜１＞～＜２１＞のいずれかに記載の毛髪化粧料を適用する、毛髪のシュリンク抑制方法。 <2> Component (A) is preferably a homopolymer of dimethyldiallylammonium chloride, a copolymer of dimethyldiallylammonium chloride and acrylic acid, a copolymer of dimethyldiallylammonium chloride and acrylamide, and dimethyldiallylammonium chloride. and a copolymer of acrylic acid and acrylamide, more preferably a homopolymer of dimethyldiallylammonium chloride and a copolymer of dimethyldiallylammonium chloride and acrylic acid. <1>, further preferably comprising a copolymer of dimethyldiallylammonium chloride and acrylic acid.
<3> The weight average molecular weight of component (A) is preferably 10,000 or more, more preferably 50,000 or more, still more preferably 100,000 or more, and preferably 3,000,000 or less, The hair cosmetic composition according to <1> or <2>, which is more preferably 1,000,000 or less, still more preferably 800,000 or less.
<4> Part of the hydrogen atoms of the hydroxyl groups of the component (B), preferably a polysaccharide compound having a structural unit represented by the following formula (5), is a group —(CH ₂ ) _m COO ^— (m is an integer of 1 or more and 5 or less), the average degree of substitution per structural unit by the group is 0.5 or more and 2.0 or less, and part of the hydrogen atoms of the remaining hydroxyl groups have 1 or more and 40 carbon atoms Any one of <1> to <3>, including the following anionic polysaccharide derivative optionally substituted with a linear or branched alkyl group and/or alkylene group, more preferably including carboxymethylcellulose: Hair cosmetics.

In the formula, R may be the same or different and represents a linear or branched alkylene group having 2 to 4 carbon atoms which may be substituted with a hydroxyl group, n is RO per structural unit indicates the number at which the average added mole number of is 0 or more and 10 or less.
<5> The component (B) preferably has a viscosity of 1% by mass aqueous solution at 25°C of 100 mPa·s or more, more preferably 120 mPa·s or more, still more preferably 150 mPa·s or more, and preferably 30,000 mPa s or less, more preferably 15,000 mPa s or less, still more preferably 10,000 mPa s or less, still more preferably 5,000 mPa s or less, still more preferably 1,000 mPa s or less, still more preferably The hair cosmetic according to any one of <1> to <4>, which has a viscosity of 500 mPa·s or less.
<6> The component (C) preferably contains one or more selected from diethylene glycol monomethyl ether, diethylene glycol monoethyl ether, diethylene glycol monopropyl ether and diethylene glycol monobutyl ether, more preferably diethylene glycol monoethyl ether and diethylene glycol monopropyl ether. and diethylene glycol monobutyl ether, more preferably diethylene glycol monoethyl ether, according to any one of <1> to <5>.
<7> The mass ratio (C/(A+B)) of the content of the component (C) to the total content of the component (A) and the component (B) is preferably 0.10 or more, more preferably 0 .15 or more, more preferably 0.20 or more, more preferably 0.30 or more, still more preferably 0.40 or more, still more preferably 0.45 or more, and preferably 5.0 or less, more preferably Any one of <1> to <6>, which is 4.0 or less, more preferably 3.0 or less, more preferably 2.0 or less, still more preferably 1.0 or less, and further preferably 0.8 or less The described hair cosmetic.
<8> The ratio (Ac)/(Ba) of the cationic charge amount (Ac) of the component (A) to the anionic charge amount (Ba) of the component (B) is preferably 0.5 or more, more preferably 0 0.6 or more, more preferably 0.7 or more, more preferably 0.8 or more, still more preferably 0.9 or more, and preferably 2.0 or less, more preferably 1.5 or less, still more preferably The hair cosmetic according to any one of <1> to <7>, which is 1.3 or less, more preferably 1.2 or less, further preferably 1.1 or less.
<9> The cationic charge density of component (A) is preferably 0.5 meq/g or more, more preferably 1.0 meq/g or more, still more preferably 2.0 meq/g or more, still more preferably 3.0 meq/g. g, more preferably 4.0 meq/g or more, and preferably 10.0 meq/g or less, more preferably 8.0 meq/g or less, still more preferably 6.0 meq/g or less, still more preferably 5.0 meq/g or less. The hair cosmetic according to any one of <1> to <8>, which is 0 meq/g or less.
<10> The anion charge density of the component (B) is preferably 0.5 meq/g or more, more preferably 1.0 meq/g or more, still more preferably 2.0 meq/g or more, still more preferably 2.5 meq/g. g or more, more preferably 3.0 meq/g or more, and preferably 10.0 meq/g or less, more preferably 8.0 meq/g or less, even more preferably 5.0 meq/g or less, still more preferably 4 The hair cosmetic according to any one of <1> to <9>, which is 0 meq/g or less.
<11> The mass ratio (A)/(B) of the content of component (A) to the content of component (B) is preferably 0.4 or more, more preferably 0.5 or more, and still more preferably 0 .6 or more, and preferably 2.0 or less, more preferably 1.5 or less, even more preferably 1.2 or less, even more preferably 1.0 or less, and still more preferably 0.8 or less. The hair cosmetic composition according to any one of 1> to <10>.
<12> The total content of components (A) to (C) is preferably 0.1% by mass or more, more preferably 0.5% by mass or more, still more preferably 1.0% by mass or more, and still more preferably 1.2% by mass or more, and preferably 25.0% by mass or less, more preferably 20.0% by mass or less, even more preferably 15.0% by mass or less, still more preferably 10.0% by mass or less, The hair cosmetic composition according to any one of <1> to <11>, which is more preferably 5.0% by mass or less, more preferably 3.0% by mass or less, and still more preferably 2.5% by mass or less.
<13> The content of component (A) is preferably 0.10% by mass or more, more preferably 0.20% by mass or more, still more preferably 0.30% by mass or more, and still more preferably 0.35% by mass. and preferably 10.0% by mass or less, more preferably 5.0% by mass or less, even more preferably 2.0% by mass or less, even more preferably 1.0% by mass or less, still more preferably 0.0% by mass or less. The hair cosmetic composition according to any one of <1> to <12>, which is 80% by mass or less, more preferably 0.60% by mass or less, further preferably 0.45% by mass or less.
<14> The content of component (B) is preferably 0.10% by mass or more, more preferably 0.20% by mass or more, still more preferably 0.30% by mass or more, and still more preferably 0.40% by mass. Above, more preferably 0.50% by mass or more, more preferably 0.55% by mass or more, and preferably 10.0% by mass or less, more preferably 5.0% by mass or less, still more preferably 2. 0% by mass or less, more preferably 1.0% by mass or less, more preferably 0.80% by mass or less, and still more preferably 0.65% by mass or less, according to any one of <1> to <13> Hair cosmetics.
<15> The content of component (C) is preferably 0.10% by mass or more, more preferably 0.20% by mass or more, still more preferably 0.30% by mass or more, and still more preferably 0.40% by mass. and preferably 5.0% by mass or less, more preferably 4.0% by mass or less, even more preferably 3.0% by mass or less, even more preferably 2.5% by mass or less, and still more preferably 1.5% by mass or less. The hair cosmetic according to any one of <1> to <14>, which is 5% by mass or less, more preferably 1.0% by mass or less, and further preferably 0.8% by mass or less.
<16> The pH of the hair cosmetic is preferably 3.0 or higher, more preferably 3.2 or higher, still more preferably 3.3 or higher, and preferably 8.0 or lower, more preferably 7.0 or lower. , and more preferably 6.0 or less, the hair cosmetic according to any one of <1> to <15>.
<17> The hair cosmetic according to any one of <1> to <16>, containing an aqueous medium.
<18> The aqueous medium preferably contains at least one selected from water, ethanol, isopropyl alcohol, 1,3-butylene glycol, glycerin, ethylene glycol, propylene glycol, and dipropylene glycol, and more preferably contains water. Hair cosmetics according to <17>.
<19> The content of the aqueous medium is preferably 60% by mass or more, more preferably 70% by mass or more, still more preferably 80% by mass or more, still more preferably 85% by mass or more, and preferably 99% by mass. % or less, more preferably 98 mass % or less, still more preferably 97 mass % or less, the hair cosmetic composition according to <17> or <18>.
<20> Preferably hair shampoo, hair rinse, hair conditioner, hair treatment, hair pack or hair styling agent, more preferably hair rinse, hair conditioner, hair treatment, hair pack or hair styling agent <1> to <19> The hair cosmetic composition according to any one of 19>.
<21> Preferably liquid, foam, paste or cream, more preferably liquid, paste or cream, still more preferably liquid, any of <1> to <20> Crab hair cosmetic.
<22> A hair treatment method comprising the steps of: applying the hair cosmetic composition according to any one of <1> to <21> to the hair; and rinsing the hair to which the hair cosmetic composition is applied.
<23> Use of the hair cosmetic according to any one of <1> to <21> for suppressing spreading of hair during drying after washing.
<24> Use of the hair cosmetic composition according to any one of <1> to <21> for suppressing shrinkage.
<25> A method for suppressing spread of hair during drying after washing, comprising applying the hair cosmetic composition according to any one of <1> to <21>.
<26> A method for suppressing shrinkage of hair, comprising applying the hair cosmetic composition according to any one of <1> to <21>.

[Examples 1 to 5, Comparative Examples 1 to 5]
Hair cosmetics having the compositions of Examples and Comparative Examples shown in Table 1 below were prepared by the following method, and the hair bundles for evaluation were used to evaluate the effects of these hair cosmetics on the control of hair manageability and shrinkage. did The evaluation results are shown in Table 1, respectively.
<Preparation method>
First, a 2 mass % component (A) aqueous solution and a 2 mass % component (B) aqueous solution were prepared. Here, the component (A) aqueous solution was prepared by diluting the stock solution of component (A). Component (B) aqueous solution was prepared by adding component (B) to water at 60° C. and stirring until completely dissolved without lumps.
Next, while stirring at room temperature, component (B) aqueous solution, NaCl, component (A) aqueous solution, component (C), and pH adjuster (lactic acid, NaOH) are added in this order to water to make hair makeup. got the fee.

<Hair bundle for evaluation>
The base portion of a tuft of hair with a curl diameter of about 2 cm and weighing about 0.3 g was fixed to a plastic plate with a width of about 2 cm with an adhesive. The portion of the plastic plate to which the hair bundle was fixed was clamped with a double clip having a width of about 3 cm, washed with a plain shampoo having the composition shown below, and thoroughly rinsed with tap water. The tress in a wet state after this rinsing was used as the tress for evaluation.

(Composition of plain shampoo)
[Unit: % by mass]
Polyoxyethylene (2.5) sodium lauryl ether sulfate 15.5
Lauric acid diethanolamide 2.3
Disodium edetate 0.15
Sodium benzoate 0.5
sodium chloride 0.8
Phosphoric acid appropriate amount (pH adjustment)
Perfume Trace amount (less than 0.5)
Methylparaben trace amount (less than 0.5)
water balance
(pH 7.0) Total 100

<Treatment of hair bundle>
The wet hair tresses for evaluation and 3.0 g of the hair cosmetics of each example and each comparative example were wrapped in plastic wrap and kneaded for 1 minute.
Next, in order to untangle the hair, the hair was combed 10 times, and then the hair bundle was wound around a glass rod having a length of 20 cm and a diameter of 5 mm. In this state, the hair bundle was rinsed with tap water for about 10 seconds. Next, the hair bundle was immersed in a container containing about 500 g of tap water while being wound around a glass rod. Only the glass rod was pulled out while the hair tress was immersed in water. In this state, the knob part of the double clip was hooked on the stick. A container containing tap water was pulled down to take out the hair tress, and natural drying was started.

<Shrink suppression evaluation>
Next, when natural drying was started, a photograph of the hair bundle was taken, and the length (L ₀ ) of the hair bundle was measured from the obtained photograph image. A photograph was taken again 90 minutes after the start of natural drying, the length of the hair bundle (L ₉₀ ) was measured from the obtained photographic image, and the length ratio L _a (L ₉₀ /L ₀ ) was calculated. .
In addition, except that the treatment of the hair cosmetic, that is, the operation of wrapping the hair bundle for evaluation in a wet state and 3.0 g of the hair cosmetic of each example and each comparative example in plastic wrap and rubbing for 1 minute, was not performed. Similarly to the measurement of the length ratio L _a , the length of the hair bundle (L' ₀ ) at the start of natural drying and the length of the hair bundle after 90 minutes from the start of natural drying (L' ₉₀ ) were measured, and the length ratio L _b (L' ₉₀ /L' ₀ ) was calculated. Next, a shrinkage improvement ratio (L _a /L _b ) was calculated from L _a and L _b .
If the shrinkage improvement ratio is greater than 1.00, it can be said that shrinkage is suppressed, and the larger the value, the better the shrinkage suppression effect. The shrinkage improvement ratio is preferably 1.05 or more, more preferably 1.07 or more, still more preferably 1.08 or more, still more preferably 1.10 or more.

<Evaluation of unity of hair bundles>
As an evaluation of suppression of spread of the hair in drying after washing, the cohesion of the hair bundle was evaluated.
The same hair tresses as those used for the shrink control evaluation were used. After the shrinkage suppression evaluation, the thinness (degree of unity) of the line formed by the hair bundle was evaluated by 6 panelists, and the average score was calculated.
Using the result of Comparative Example 4 as a standard evaluation score of 3, relative comparative evaluation was performed on a scale of 1 to 5. Evaluation point 1 is the worst, indicating that the tufts are thick and uneven, and evaluation point 5 is the best, indicating that the tufts are thin and collected.
If the average score of evaluation points is 3.5 or more and 5.0 or less, it can be said that spreading of the hair during drying after washing can be effectively suppressed. The average score is preferably 4.0 or more and 5.0 or less, more preferably 4.5 or more and 5.0 or less.
Here, FIG. 1 is a diagram for explaining the criteria for evaluation of coherence of hair bundles for evaluation in Examples, and is a photograph of a state in which the upper ends of hair bundles are fixed and hung, as viewed from the front. be. In FIG. 1, examples of average evaluation points of 4.8, 3.0 and 1.0 are shown for reference of the evaluation points.

Annotations of *1 to 3 in Table 1 are shown below. In addition, mass % in Table 1 is the amount of active ingredients.
*1 Lubrizol Co., Ltd., Marquat 280NP (dimethyldiallylammonium chloride: acrylic acid = 65:35 (molar ratio), cationic charge density 4.5 meq/g, weight average molecular weight 450,000)
*2 Carboxymethyl ether of cellulose, manufactured by Daicel Corporation, CMC Daicel 1150, anion charge density 3.2 meq/g, viscosity of 1% by mass aqueous solution at 25° C.: 200 to 300 mPa s, average degree of substitution: 0.7
*3 Ethyl Diglycol NSK (EDG-NSK) manufactured by Nippon Nyukazai Co., Ltd.

As shown in Table 1, the hair cosmetic composition of the present example improved the average score of hair bundle cohesiveness evaluation and the shrinkage improvement ratio in drying after washing. That is, it can be seen that the hair cosmetic composition of the present invention can effectively suppress spreading and shrinking of hair during drying after washing, and can be suitably applied particularly to efficient styling of curly hair. .

Claims (10)

A hair cosmetic containing the following components (A) to (C).
(A) Cationic polymer containing diallyl quaternary ammonium salt as a structural unit (B) Anionic polysaccharide derivative (C) Diethylene glycol monoalkyl ether The component (A) is a homopolymer of dimethyldiallylammonium chloride, a copolymer of dimethyldiallylammonium chloride and acrylic acid, a copolymer of dimethyldiallylammonium chloride and acrylamide, and a copolymer of dimethyldiallylammonium chloride, acrylic acid and acrylamide. The hair cosmetic according to claim 1, comprising at least one selected from copolymers with. The hair cosmetic according to claim 1 or 2, wherein the component (B) contains carboxymethylcellulose. The hair cosmetic composition according to any one of claims 1 to 3, wherein said component (C) contains diethylene glycol monoethyl ether. Claims 1 to 5, wherein the mass ratio (C/(A+B)) of the content of the component (C) to the total content of the component (A) and the component (B) is 0.10 or more and 5.0 or less 5. The hair cosmetic according to any one of 4. Claims 1 to 1, wherein the ratio (Ac)/(Ba) of the cationic charge amount (Ac) of the component (A) to the anionic charge amount (Ba) of the component (B) is 0.5 or more and 2.0 or less. 6. The hair cosmetic according to any one of 5. The hair cosmetic composition according to any one of claims 1 to 6, wherein the content of component (A) is 0.10% by mass or more and 10.0% by mass or less. The hair cosmetic composition according to any one of claims 1 to 7, wherein the content of component (B) is 0.10% by mass or more and 10.0% by mass or less. The hair cosmetic composition according to any one of claims 1 to 8, wherein the content of component (C) is 0.10% by mass or more and 5.0% by mass or less. A hair treatment method comprising the steps of applying the hair cosmetic composition according to any one of claims 1 to 9 to hair, and rinsing the hair to which the hair cosmetic composition has been applied.

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