WO2024070386A1

WO2024070386A1 - Hair treatment agent or head decoration product fiber treatment agent

Info

Publication number: WO2024070386A1
Application number: PCT/JP2023/030870
Authority: WO
Inventors: 早弥古田; 英輔三好; 崇神田; 優太坂井; 卓也上原
Original assignee: 花王株式会社
Priority date: 2022-09-29
Filing date: 2023-08-28
Publication date: 2024-04-04
Also published as: JP2024050433A

Abstract

The present invention provides a hair treatment agent or a head decoration product fiber treatment agent that can provide a continued lack of tangling and feeling of squeakiness in a wet state, even after repeated washing of the post-treatment hair or fibers.　In other words, the present invention provides a hair treatment agent or a head decoration product fiber treatment agent containing ingredients (A)-(C), and one or more selected from among ingredients (D) and (E), wherein the total content of ingredients (D) and (E) is 1-15 mass%.　(A) A cationic surfactant selected from among ether amines or salts thereof, amido amines or salts thereof, and mono long-chain alkyl quaternary ammonium salts that have an alkyl group having a carbon number of 18 or greater (B) A mono long-chain alkyl quaternary ammonium salt having a not-greater-than C₁₆ alkyl group, 0.1-2.8 mass% (C) A higher alcohol, 1-15 mass% (D) A modified silicone selected from among amino-modified silicones and aminopolyether-modified silicones (E) Dimethicone

Description

Hair treatment agents or fiber treatment agents for head accessories

The present invention relates to a hair treatment agent or a fiber treatment agent for head accessories such as wigs and extensions, and is preferably a rinse-off type hair cosmetic product such as a hair rinse, hair conditioner, hair treatment, or hair pack that is used after shampooing.

Hair cosmetics that are used after shampooing, such as hair rinses and hair conditioners, contain cationic surfactants and higher alcohols as main ingredients and are intended to improve the condition of the hair surface by making the hair smooth and moisturized. For example, Patent Documents 1 to 3 disclose hair cosmetics that contain cationic surfactants, higher alcohols, silicones, etc. and give hair a pleasant feel.

Patent Document 1 discloses a hair cosmetic that combines a specific hydroxylamine, a quaternary ammonium salt, a higher alcohol, an amino group-containing silicone derivative selected from several options, and a methylpolysiloxane, giving hair a soft, moist finish without stickiness, and providing excellent finger-combability and softness when rinsing.

Patent Document 2 discloses a hair conditioning composition that combines two types of silicone that do not contain amino groups with a silicone that does contain amino groups, and mixes this with a gel matrix that contains a quaternary ammonium salt type cationic surfactant and a high melting point aliphatic compound, thereby providing improved conditioning effects such as a smooth feel and reduced friction.

Patent Document 3 discloses a hair cosmetic composition that contains a quaternary ammonium salt cationic surfactant, a higher alcohol, a phosphate group-containing silicone compound, and an amino-modified silicone compound, and that has good emulsion stability, is excellent in maintaining the smoothness and manageability of hair, and is not sticky.

(Patent Document 1) Japanese Patent No. 5992257 (Patent Document 2) Japanese Patent Publication No. 2007-522226 (Patent Document 3) Japanese Patent Publication No. 2016-210686

The present invention provides a hair treatment agent or a fiber treatment agent for a head accessory product, which contains one or more components selected from the following components (A) to (C), as well as components (D) and (E), and the total content of components (D) and (E) is 1% by mass or more and 15% by mass or less.
(A) One or more cationic surfactants selected from the group consisting of ether amines or their salts, amido amines or their salts, and mono-long-chain alkyl quaternary ammonium salts having an alkyl group with 18 or more carbon atoms. (B) Mono-long-chain alkyl quaternary ammonium salts having an alkyl group with 16 or less carbon atoms, 0.1% by mass or more and 2.8% by mass or less. (C) Higher alcohol, 1% by mass or more and 15% by mass or less. (D) One or more modified silicones selected from the group consisting of amino-modified silicones and aminopolyether-modified silicones. (E) Dimethicone.

The present invention also provides a hair treatment method in which the above-mentioned hair treatment agent or fiber treatment agent for head accessories is applied to dyed hair or fibers for head accessories and then rinsed off with water.

According to Patent Documents 1 to 3, the hair cosmetics described in these documents are said to improve or sustain the feel and manageability of dry hair after finishing, and the hair cosmetic described in Patent Document 1 is said to be excellent in terms of runnability and softness when rinsing. However, these conventional hair cosmetics were unable to maintain the smooth feel and lack of tangles in the wet state after repeated washing of treated hair.

Therefore, the present invention relates to a hair treatment agent or a fiber treatment agent for head accessories that can maintain the lack of squeaky feeling and tangling in a wet state even after the treated hair or fiber for head accessories has been repeatedly washed. The present invention also relates to a hair treatment agent or a fiber treatment agent for head accessories that has a good feel when used (non-sticky) and formulation stability.

The inventors have discovered that by using two specific cationic surfactants, a higher alcohol, and two specific silicones in a hair treatment agent or a fiber treatment agent for head accessories, preferably a hair cosmetic product such as a hair rinse or hair conditioner that is used after shampooing and is rinsed off, the treated hair or fiber for head accessories can be made to retain its smooth, tangle-free feel when wet. They have also discovered that the feel of use (non-stickiness) and formulation stability of the hair treatment agent or fiber treatment agent for head accessories are good.

The hair treatment agent or fiber treatment agent for head accessories of the present invention can maintain the absence of squeaky feeling or tangles in a wet state even after the treated hair or fiber for head accessories has been repeatedly washed, and the hair treatment agent or fiber treatment agent for head accessories also has excellent feel when used (non-sticky) and formulation stability.

Detailed Description of the Invention

[Definition]
In this specification, the hair treatment agent of the present invention and the fiber treatment agent for head ornament products may be collectively referred to as the "treatment agent".
In this specification, "hair" primarily refers to hair on the head, and also includes hair used for head decoration products.
In this specification, the term "headwear product" refers to, for example, hair wigs, hairpieces, weaving, hair extensions, braided hair, hair accessories, doll hair, and the like.
In this specification, the term "fiber for head accessories" refers to a fiber used in the head accessories.

<Fibers for hair and head accessories>
The treatment agent of the present invention is applied to hair or fibers for head accessories, and among these, hair is more preferred.
The fibers for head ornament products to which the treatment agent of the present invention is applied may be either naturally derived fibers or synthetic fibers, but naturally derived fibers are preferred. Naturally derived fibers refer to fibers collected from natural animals and plants, or fibers artificially manufactured using polymers and oligomers such as proteins and polysaccharides derived from keratin, collagen, casein, soybeans, peanuts, corn, silk waste, silk protein (e.g., silk fibroin), etc. as raw materials. Among these, fibers artificially manufactured using polymers and oligomers such as proteins and polysaccharides derived from animal hair, human hair, or proteins and polysaccharides derived from keratin, collagen, casein, soybeans, peanuts, corn, silk waste, silk protein (e.g., silk fibroin), etc. as raw materials are preferred, regenerated protein fibers derived from proteins derived from keratin, collagen, casein, soybean protein, peanut protein, corn protein, silk protein (e.g., silk fibroin), etc. as raw materials are more preferred, regenerated protein fibers such as regenerated collagen fibers derived from collagen as raw materials, regenerated silk fibers derived from silk fibroin as raw materials, etc. are even more preferred, and regenerated collagen fibers are even more preferred.
Regenerated collagen fibers can be produced by known techniques. The composition of regenerated collagen fibers does not need to be 100% collagen, and may contain natural polymers, synthetic polymers, additives, etc. for quality improvement. Furthermore, regenerated collagen fibers may be post-processed or post-treated. The regenerated collagen fibers are preferably in the form of filaments. Filaments are generally taken out from bobbins or boxes. In addition, filaments coming out of the drying process in the manufacturing process of regenerated collagen fibers can also be used directly.

The synthetic fiber may be a fiber containing a synthetic resin as a main component. From the viewpoint of ease of production of the synthetic fiber and of obtaining a texture similar to that of hair, the synthetic resin is preferably a thermoplastic resin, more preferably one or more selected from the group consisting of polyester resin, polyamide resin, polyimide resin, polyamideimide resin, vinyl chloride resin, polycarbonate resin, polyphenylene sulfide resin, and modacrylic resin (copolymer of acrylonitrile and vinyl chloride). The term "main component" as used herein means a component whose content in the synthetic fiber is preferably 50% by mass or more, more preferably 60% by mass or more, even more preferably 70% by mass or more, even more preferably 80% by mass or more, and even more preferably 90% by mass or more, but not more than 100% by mass.
In addition to the above synthetic resins, the synthetic fibers may further contain various components such as flame retardants, flame retardant assistants, light or heat stabilizers, fluorescent agents, antioxidants, antistatic agents, and ultraviolet absorbers, as long as the effects of the present invention are not impaired.

[Component (A): One or more cationic surfactants selected from the group consisting of ether amines or their salts, amido amines or their salts, and mono-long-chain alkyl quaternary ammonium salts having an alkyl group with 18 or more carbon atoms]

From the viewpoints of maintaining the freedom from squeaky feeling and tangling in a wet state and improving the feel of the treatment agent in use (freedom from stickiness) and the formulation stability, component (A) is preferably one or more selected from the group consisting of etheramines or salts thereof, and amidoamines or salts thereof, and more preferably a cationic surfactant containing an etheramine or a salt thereof.
The ether amine may be a compound represented by the following general formula (1).

[In the formula, R ¹ represents a linear or branched alkyl or alkenyl group having 6 to 24 carbon atoms, R ² and R ³ may be the same or different, and represent an alkyl group having 1 to 6 carbon atoms or -(A ¹ O) _m H (A ¹ represents an alkylene group having 2 to 4 carbon atoms, m represents a number from 1 to 6, m A ¹ Os may be the same or different, and the arrangement is arbitrary), and Y represents a hydrogen atom or a hydroxyl group.]

Specific preferred examples of etheramines or salts thereof include N,N-dimethyl-3-hexadecyloxypropylamine or salts thereof, N,N-dimethyl-3-octadecyloxypropylamine or salts thereof, hexadecyloxy(2-hydroxypropyl)dimethylamine or salts thereof, octadecyloxy(2-hydroxypropyl)dimethylamine or salts thereof, etc. Among these, N,N-dimethyl-3-octadecyloxypropylamine or salts thereof, and octadecyloxy(2-hydroxypropyl)dimethylamine or salts thereof are more preferred.

An example of an amidoamine is a compound represented by the following general formula (2):

[In the formula, R ⁴ represents a linear or branched alkyl group having 17 to 21 carbon atoms, two R ⁵ represent the same alkyl group having 1 to 4 carbon atoms, and n represents a number from 2 to 4.]

Specific preferred examples of amidoamines or their salts include dimethylaminoethyl stearate or its salts, dimethylaminopropyl stearate or its salts, diethylaminoethyl stearate or its salts, diethylaminopropyl stearate or its salts, dipropylaminoethyl stearate or its salts, dipropylaminopropyl stearate or its salts, dimethylaminopropyl stearate or its salts, dimethylaminopropyl stearate or its salts, diethyl .... Of these, dimethylaminopropyl stearate or its salts, diethylaminoethyl stearate or its salts, dimethylaminopropyl stearate or its salts, diethylaminopropyl stearate or its salts, dimethylaminopropyl stearate or its salts, diethylaminopropyl stearate or its salts, dimethylaminopropyl stearate or its salts, diethylaminopropyl stearate or its salts.

The salts of ether amines and amido amines include salts with organic or inorganic acids. Examples of inorganic acids include salts with hydrochloric acid, sulfuric acid, phosphoric acid, and the like. Examples of organic acids include salts with monocarboxylic acids such as acetic acid and propionic acid; salts with dicarboxylic acids such as malonic acid, succinic acid, glutaric acid, adipic acid, maleic acid, fumaric acid, and phthalic acid; salts with polycarboxylic acids such as polyglutamic acid; salts with hydroxycarboxylic acids such as glycolic acid, lactic acid, hydroxyacrylic acid, glyceric acid, malic acid, tartaric acid, and citric acid; and salts with acidic amino acids such as glutamic acid and aspartic acid. Among these, salts with hydrochloric acid are more preferred as inorganic acid salts. Examples of organic acid salts include salts with dicarboxylic acids, hydroxycarboxylic acids, and acidic amino acids. Examples of salts with dicarboxylic acids include salts with maleic acid and succinic acid. Examples of salts with hydroxycarboxylic acids include salts with glycolic acid, lactic acid, and malic acid. Examples of salts with acidic amino acids include salts with glutamic acid.

　Examples of mono-long chain alkyl quaternary ammonium salts with an alkyl group having 18 or more carbon atoms include compounds represented by the following general formula (3).

[In the formula, R ⁶ represents a saturated or unsaturated, linear or branched alkyl group having 18 to 22 carbon atoms, R ¹⁰ -CO-NH-(CH ₂ ) _a - or R ¹⁰ -CO-O-(CH ₂ ) _a - (R ¹⁰ represents a saturated or unsaturated, linear or branched alkyl chain having 18 to 21 carbon atoms, and a represents an integer of 1 to 4), R ⁷ , R ⁸ and R ⁹ independently represent an alkyl group having 1 to 4 carbon atoms or a hydroxylalkyl group having 1 to 4 carbon atoms, and X ^- represents a chloride ion, a bromide ion, a methosulfate ion or an ethosulfate ion.]

Suitable examples of mono-long chain alkyl quaternary ammonium salts having an alkyl group with 18 or more carbon atoms include steartrimonium chloride, steartrimonium bromide, steartrimonium methosulfate, behentrimonium chloride, behentrimonium methosulfate, behenamidopropyltrimonium chloride, behenamidopropyltrimonium methosulfate, behenamidopropyl ethyldimonium ethosulfate, behenamidopropyl PG dimonium chloride, etc.

Component (A) may be used alone or in combination of two or more kinds. The content of component (A) in the treatment agent of the present invention is preferably 1% by mass or more, more preferably 1.5% by mass or more, even more preferably 2% by mass or more, from the viewpoint of maintaining the absence of squeaky feeling and tangling in a wet state, improving the feeling of use of the treatment agent (non-stickiness) and the formulation stability of the treatment agent, and is preferably 10% by mass or less, more preferably 5% by mass or less, even more preferably 3% by mass or less, from the viewpoint of the feeling of use and stability of the treatment agent. The specific range of the content of component (A) in the treatment agent of the present invention is preferably 1 to 10% by mass, more preferably 1.5 to 5% by mass, even more preferably 2 to 3% by mass.

[Component (B): Mono-long chain alkyl quaternary ammonium salt having an alkyl group of 16 or less carbon atoms]
From the viewpoint of maintaining the absence of squeaky feeling and tangling in a wet state, the alkyl group of the mono long-chain alkyl quaternary ammonium salt of component (B) preferably has from 12 to 16 carbon atoms, more preferably from 14 to 16 carbon atoms, and even more preferably an alkyl group having 16 carbon atoms. Specific examples of component (B) include cetrimonium chloride, cetrimonium bromide, cetrimonium methosulfate, etc., with cetrimonium chloride being preferred.

The content of component (B) in the treatment agent of the present invention is 0.1% by mass or more, preferably 0.2% by mass or more, and more preferably 0.3% by mass or more, from the viewpoint of maintaining the absence of squeaky feeling and tangling in a wet state. Also, the content of component (B) in the treatment agent of the present invention is 2.8% by mass or less, preferably 2.5% by mass or less, and more preferably 2.3% by mass or less, from the viewpoint of the stability of the treatment agent. The specific range of the content of component (B) in the treatment agent of the present invention is 0.1 to 2.8% by mass, preferably 0.2 to 2.5% by mass or more, and more preferably 0.3 to 2.3% by mass.

The total content of components (A) and (B) in the treatment agent of the present invention is preferably 1.1% by mass or more, more preferably 1.7% by mass or more, even more preferably 2.3% by mass or more, from the viewpoint of maintaining the absence of squeaky feeling and tangling in a wet state and improving the feel of the treatment agent (non-stickiness) and the formulation stability, and is preferably 12.8% by mass or less, more preferably 7.5% by mass or less, even more preferably 5.3% by mass or less. The specific range of the total content of components (A) and (B) in the treatment agent of the present invention is preferably 1.1 to 12.8% by mass, more preferably 1.7 to 7.5% by mass, even more preferably 2.3 to 5.3% by mass.

The mass ratio (B)/(A) of component (B) to component (A) is preferably 0.01 or more, more preferably 0.05 or more, even more preferably 0.1 or more, from the viewpoint of maintaining the absence of squeaky feeling and tangling in a wet state and improving the feeling of use of the treatment agent (non-stickiness) and the formulation stability, and is preferably 1.2 or less, more preferably 1.1 or less, even more preferably 1.0 or less, and even more preferably 0.5 or less. The specific range of the mass ratio (B)/(A) of component (B) to component (A) is preferably 0.01 to 1.2, more preferably 0.05 to 1.1, even more preferably 0.1 to 1.0, and even more preferably 0.1 to 0.5. On the other hand, from the viewpoint of improving the applicability to hair or fibers for head ornament products and preventing dripping from hands, hair, or fibers for head ornament products, the mass ratio (B)/(A) is preferably in the range of 0.1 to 0.17.

[Component (C): Higher alcohol]
From the viewpoint of maintaining the absence of squeaky feeling and tangling in a wet state and improving the formulation stability, the higher alcohol of component (C) may be either a linear or branched, saturated or unsaturated aliphatic alcohol, preferably a linear or branched saturated aliphatic alcohol, more preferably a linear saturated aliphatic alcohol. The number of carbon atoms of the higher alcohol of component (C) is preferably 12 or more, more preferably 14 or more, even more preferably 16 or more, and is preferably 22 or less, more preferably 20 or less, even more preferably 18 or less. The specific range of the number of carbon atoms of the higher alcohol of component (C) is preferably 12 to 22, more preferably 14 to 20, even more preferably 16 to 18.

Specific examples of component (C) include lauryl alcohol, myristyl alcohol, cetyl alcohol, stearyl alcohol, arachyl alcohol, hexyldecanol, isostearyl alcohol, oleyl alcohol, and 2-octyldodecanol. Among these, stearyl alcohol, cetyl alcohol, and myristyl alcohol are preferred, stearyl alcohol and cetyl alcohol are more preferred, and stearyl alcohol is even more preferred. These components (C) can be used alone or in combination of two or more.

The content of component (C) in the treatment agent of the present invention is 1% by mass or more, preferably 3% by mass or more, and more preferably 5% by mass or more, from the viewpoint of the stability of the treatment agent. Also, the content of component (C) in the treatment agent of the present invention is 15% by mass or less, preferably 12% by mass or less, and more preferably 10% by mass or less, from the viewpoint of smoothness from application to rinsing and after drying. The specific range of the content of component (C) in the treatment agent of the present invention is 1 to 15% by mass, preferably 3 to 12% by mass, and more preferably 5 to 10% by mass or more.

[Component (D): One or more modified silicones selected from the group consisting of amino-modified silicones and aminopolyether-modified silicones]
Hereinafter, the amino-modified silicone will also be referred to as "component (D1)" and the amino polyether-modified silicone will also be referred to as "component (D2)."

<Component (D1): Amino-modified silicone>
In this specification, the amino-modified silicone refers to a silicone that has an amino group and does not have a polyether structure. An example of the component (D1) is an amino-modified silicone represented by the following general formula (4).

[In the formula, R ¹⁰ each independently represents a methyl group or a hydroxy group, and R ¹¹ each independently represents an alkyl group having 1 to 30 carbon atoms, a hydroxy group, or R ^12. R ¹² represents a monovalent group represented by -R ¹³ -Z ¹ (R ¹³ represents a single bond or a divalent hydrocarbon group having 1 to 20 carbon atoms, and Z ¹ represents a primary to tertiary amino group-containing group or an ammonium group-containing group). a represents a number of 0 to 3,000, and b represents a number of 1 to 3,000.]

In formula (4), R ¹⁰ is preferably a methyl group, and R ¹¹ is preferably a methyl group or R ¹² .

^R13 is preferably a divalent hydrocarbon group having 1 to 20 carbon atoms, more preferably a divalent saturated hydrocarbon group having 1 to 20 carbon atoms, even more preferably a linear or branched divalent saturated hydrocarbon group having 1 to 6 carbon atoms, still more preferably a methylene group, ethylene group, trimethylene group, propylene group, tetramethylene group, or hexamethylene group, and even more preferably a trimethylene group or propylene group.

Z ¹ is preferably an amino group-containing group represented by -N(R ¹⁴ ) ₂ , -NR ¹⁴ (CH ₂ ) _c N(R ¹⁵ ) ₂ , or -NR ¹⁴ (CH ₂ ) _c N(R ¹⁵ )CO-R ^16. Here, R ¹⁴ and R ¹⁵ each independently represent a hydrogen atom or an alkyl group having 1 to 3 carbon atoms, preferably a hydrogen atom or a methyl group. R ¹⁶ represents an alkyl group having 1 to 3 carbon atoms. c represents a number of 1 to 6, preferably a number of 2 to 4.

In general formula (4), R ¹² is preferably --(CH ₂ ) ₃ --NH ₂ , --(CH ₂ ) ₃ --N(CH ₃ ) ₂ , --(CH ₂ ) ₃ --NH--(CH ₂ ) ₂ --NH ₂ , or --(CH ₂ ) ₂ --NH--(CH ₂ ) ₂ --N(CH ₃ ) ₂ , and more preferably --(CH ₂ ) ₃ --NH ₂ or --(CH ₂ ) ₃ --NH--(CH ₂ ) ₂ --NH ₂ .

The amino-modified silicone represented by general formula (4) is preferably one or more selected from the group consisting of amodimethicone, aminopropyl dimethicone, bis(aminopropyl) dimethicone, and bis(cetearyl) amodimethicone, and more preferably a compound represented by any of the following general formulas (4a) to (4d).

(In the formula, a, b, c and R ¹³ have the same meanings as defined above.)
Component (D1) may be used alone or in combination of two or more. From the viewpoint of smoothness from application to rinsing and after drying, component (D1) is more preferably an amino-modified silicone (amodimethicone) represented by the above general formula (4a).

From the viewpoint of smoothness from application through rinsing and after drying, the kinetic viscosity of component (D1) at 25°C is preferably at least 20 mm ² /s, more preferably at least 100 mm ² /s, even more preferably at least 500 mm ² /s, and is preferably at most 10,000 mm ² /s, more preferably at most 5,000 mm ² /s, even more preferably at most 2,000 mm ² /s. The specific range of the kinetic viscosity of component (D1) at 25°C is preferably 20 to 10,000 mm ² /s, more preferably 100 to 5,000 mm ² /s, even more preferably 500 to 2,000 mm ² /s.
The kinetic viscosity of component (D1) is a value measured at 25°C in accordance with the "Method for measuring viscosity of liquids" specified in JIS Z8803:2011 or ASTM D 445-46T, and can be measured, for example, using an Ubbelohde viscometer.

Commercially available amino-modified silicones can also be used as component (D1). For example, an amino-modified silicone (amodimethicone) represented by general formula (4a) is "Silicone SF 8457 C" manufactured by Dow-Toray.

<Component (D2): Aminopolyether-modified silicone>
In this specification, aminopolyether-modified silicone means a silicone having an amino group and a polyether structure.
The polyether structure in component (D2) is preferably a polyoxyalkylene group from the viewpoint of smoothness from application through rinsing and after drying.

From the viewpoint of smoothness from application to rinsing and after drying, where the number of moles of silicon atoms in component (D2) is Si and the average number of moles of alkylene oxide added is AO, the ratio Si/AO is preferably 0.05 or more, more preferably 0.1 or more, even more preferably 0.3 or more, still more preferably 0.5 or more, still more preferably 0.7 or more, and is preferably 3.0 or less, more preferably 2.8 or less, still more preferably 2.6 or less, and still more preferably 2.4 or less. The specific range of the ratio Si/AO in component (D2) is preferably 0.05 to 3.0, more preferably 0.1 to 2.8, even more preferably 0.3 to 2.8, still more preferably 0.5 to 2.6, and still more preferably 0.7 to 2.4.
The Si/AO ratio can be calculated from the integral value of hydrogen atoms bonded to silicon and H of hydrocarbon groups, and the integral value of H of oxyalkylene groups, measured by ¹ H-NMR measurement.

From the viewpoint of smoothness from application to rinsing and after drying, the nitrogen content of component (D2) is preferably 0.1% by mass or more, more preferably 0.2% by mass or more, even more preferably 0.5% by mass or more, still more preferably 1.0% by mass or more, and preferably 2.5% by mass or less, more preferably 2.0% by mass or less, even more preferably 1.8% by mass or less, and even more preferably 1.5% by mass or less. The specific range of the nitrogen content of component (D2) is preferably 0.1 to 2.5% by mass, more preferably 0.2 to 2.0% by mass, even more preferably 0.5 to 1.8% by mass, and even more preferably 1.0 to 1.5% by mass. The nitrogen content of component (D2) is a value measured in accordance with the potentiometric titration method specified in JIS K0113:2005.

Component (D2) is preferably an aminopolyether-modified silicone represented by the following general formula (5):

[In formula (5), R ¹⁷ represents a hydrogen atom or a monovalent hydrocarbon group having 1 to 6 carbon atoms. R ¹⁸ represents R ¹⁷ or E. E represents a monovalent group represented by -R ¹⁹ -Z ² (R ¹⁹ represents a single bond or a divalent hydrocarbon group having 1 to 20 carbon atoms, and Z ² represents a primary to tertiary amino group-containing group or an ammonium group-containing group). W represents a divalent saturated hydrocarbon group having 1 to 6 carbon atoms.
d is a number of 2 or more, e is a number of 1 or more, f is a number of 2 or more and 100 or less, and g is a number of 1 or more. x is a number of 2 or more and 10 or less. The structural units in the parentheses may be bonded in any order, and may be bonded in a block or random form. f C _x H _2x O may be the same or different. In addition, multiple R ¹⁷ , R ¹⁸ , E, and W may be the same or different.

When component (D2) is an aminopolyether-modified silicone represented by general formula (5), the Si/AO is represented by (d+e+1)/f.

In formula (5), R ¹⁷ is preferably a hydrogen atom, an alkyl group having 1 to 6 carbon atoms, or a phenyl group, more preferably a methyl group or an ethyl group, and even more preferably a methyl group.

R ¹⁹ is preferably a divalent hydrocarbon group having 1 to 20 carbon atoms, more preferably a divalent saturated hydrocarbon group having 1 to 20 carbon atoms, even more preferably a linear or branched divalent saturated hydrocarbon group having 1 to 6 carbon atoms, still more preferably a methylene group, ethylene group, trimethylene group, propylene group, tetramethylene group, or hexamethylene group, and even more preferably a trimethylene group or propylene group.

Z ² is preferably an amino group-containing group represented by -N(R ²⁰ ) ₂ , -NR ²⁰ (CH ₂ ) _h N(R ²⁰ ) ₂ , or -NR ²⁰ (CH ₂ ) _h N(R ²¹ )CO-R ^22. Here, R ²⁰ and R ²¹ each independently represent a hydrogen atom or an alkyl group having 1 to 3 carbon atoms, and are preferably a hydrogen atom or a methyl group. R ²² represents an alkyl group having 1 to 3 carbon atoms. h represents a number of 1 to 6, and is preferably a number of 2 to 4.

In general formula (5), preferred E groups are -( _CH2 ) ₃ - _NH2 , -( _CH2 ) ₃ -N( _CH3 ) ₂ _, -( _CH2 ) ₃ -NH-( _CH2 ) ₂ -NH2, or -( _CH2 ) ₂ -NH-( _CH2 ) ₂ -N( _CH3 ) ₂ , and more preferably -( _CH2 ) ₃ -NH-( _CH2 ) ₂ - _NH2 .

In formula (5), W is preferably an ethylene group, a propylene group, a trimethylene group, an n-butylene group (a tetramethylene group) or an i-butylene group, and more preferably an n-butylene group or an i _- butylene group. The i- _butylene group referred to here includes --CH( _CH3 ) _CH2CH2-- , _--CH2CH ( _CH3 ) _CH2-- , and _--CH2CH2CH ( _CH3 )--.

In general formula (5), d is preferably a number between 2 and 1000, more preferably between 2 and 100. e is preferably a number between 1 and 50, f is preferably a number between 4 and 50, more preferably between 10 and 18, and g is preferably a number between 1 and 100.

In general formula (5), x is preferably a number from 2 to 6, more preferably from 2 to 4.

Component (D2) is more preferably an aminopolyether-modified silicone represented by the following general formula (5a):

[In formula (5a), d to g have the same meanings as above.]

From the viewpoint of smoothness from application through rinsing and after drying, the kinetic viscosity of component (D2) at 25°C is preferably at least 5,000 mm ² /s, more preferably at least 20,000 mm ² /s, even more preferably at least 40,000 mm ² /s, and is preferably at most 200,000 mm ² /s, more preferably at most 150,000 mm ² /s, even more preferably at most 100,000 mm ² /s. The specific range of the kinetic viscosity of component (D2) at 25°C is preferably 5,000 to 200,000 mm ² /s, more preferably 20,000 to 150,000 mm ² /s, even more preferably 40,000 to 100,000 mm ² /s.
The kinematic viscosity of component (D2) can be measured in the same manner as for component (D1).

Commercially available aminopolyether-modified silicones can also be used as component (D2). For example, examples of aminopolyether-modified silicones represented by general formula (5a) include "DOWSIL SS-3588 FLUID" (bisisobutyl PEG-15/amodimethicone copolymer, Si/AO=2.39, nitrogen content: 1.0% by mass, active ingredient content: 71.5% by mass), "DOWSIL SILSTYLE 104" (bisisobutyl PEG-14/amodimethicone copolymer, nitrogen content: 1.2% by mass, Si/AO=2.46), and "DOWSIL SILSTYLE 201" (bisisobutyl PEG-14/amodimethicone copolymer, nitrogen content: 1.2% by mass, Si/AO=0.80), all manufactured by Dow-Toray.

Component (D) may be used alone or in combination of two or more types.
Among the above, from the viewpoints of improving the smoothness from application to rinsing and after drying, and maintaining the absence of squeaky feeling and tangling in a wet state, component (D) is preferably one or more selected from the group consisting of the amino-modified silicone represented by general formula (4) and the amino polyether-modified silicone represented by general formula (5), more preferably one or more selected from the group consisting of the amino-modified silicone represented by general formula (4a) and the amino polyether-modified silicone represented by general formula (5a), and even more preferably the amino-modified silicone represented by general formula (4a).

The content of component (D) in the treatment agent of the present invention is preferably 0.1% by mass or more, more preferably 0.4% by mass or more, even more preferably 0.8% by mass or more, and is preferably 10% by mass or less, more preferably 7% by mass or less, even more preferably 5% by mass or less, from the viewpoint of improving smoothness from application to rinsing and after drying, and maintaining the lack of squeaky feeling and tangling in a wet state. The specific range of the content of component (D) in the treatment agent of the present invention is preferably 0.1 to 10% by mass, more preferably 0.4 to 7% by mass, even more preferably 0.8 to 5% by mass.

[Ingredient (E): Dimethicone]
The dimethicone component (E) is preferably low volatility, and from this viewpoint, the kinematic viscosity at 25°C is preferably ⁵⁰⁰ mm2/s or more, more preferably 1,000 ^mm2 /s or more, even more preferably ^5,000 mm2/s or more, even more preferably 10,000 ^mm2 /s or more, even more preferably 30,000 ^mm2 /s or more, even more preferably 50,000 ^mm2 /s or more, and preferably 1,000,000 ^mm2 /s or less, more preferably 50,000 ^mm2 /s or less, even more preferably 300,000 ^mm2 /s or less, and even more preferably 200,000 ^mm2 /s or less. The kinetic viscosity of dimethicone in component (E) at 25°C is preferably 500 to 1,000,000 ^mm2 /s, more preferably 1,000 to 500,000 ^mm2 /s, even more preferably 5,000 to 300,000 ^mm2 /s, still more preferably 10,000 to 200,000 ^mm2 /s, still more preferably 30,000 to 200,000 ^mm2 /s, and even more preferably 50,000 to 200,000 ^mm2 /s. When two or more types of dimethicone with different kinetic viscosities are used, the viscosity is taken as the viscosity of the mixture.
The kinetic viscosity of component (E) is a value measured at 25°C according to the "Method for measuring viscosity of liquids" specified in JIS Z8803:2011 or in accordance with ASTM D 445-46T, and can be measured, for example, using an Ubbelohde viscometer.

Commercially available amino-modified silicones can also be used as component (E). Examples of dimethicone include Silicone KHS-3 (dynamic viscosity 100,000 to 150,000 ^mm2 /s (25°C)) and Silicone KHS-9 (dynamic viscosity 5,000 to 25,000 ^mm2 /s (25°C)) (both manufactured by Shin-Etsu Chemical Co., Ltd.).

The content of component (E) in the treatment agent of the present invention is preferably 0.1% by mass or more, more preferably 1% by mass or more, even more preferably 2% by mass or more, and is preferably 10% by mass or less, more preferably 8% by mass or less, even more preferably 6% by mass or less, from the viewpoint of improving smoothness from application to rinsing and after drying, and maintaining a lack of squeaky feeling and tangling in a wet state. The specific range of the content of component (E) in the treatment agent of the present invention is preferably 0.1 to 10% by mass, more preferably 1 to 8% by mass, even more preferably 2 to 6% by mass.

The treatment agent of the present invention may contain at least one of components (D) and (E), but it is preferable to contain both components (D) and (E). The total content of components (D) and (E) is 1% by mass or more, preferably 2% by mass or more, more preferably 3% by mass or more, even more preferably 5% by mass or more, and 15% by mass or less, preferably 12% by mass or less, more preferably 10% by mass or less, even more preferably 8% by mass or less, from the viewpoint of improving smoothness from application to rinsing and after drying, and maintaining the lack of squeaky feeling and tangling in a wet state. The specific range of the total content of components (D) and (E) is 1 to 15% by mass, preferably 1 to 12% by mass, more preferably 1 to 10% by mass, even more preferably 2 to 10% by mass, even more preferably 3 to 10% by mass, even more preferably 5 to 8% by mass or more.

The mass ratio (E)/(D) of component (E) to component (D) is preferably 0.1 or more, more preferably 1 or more, even more preferably 2 or more, and even more preferably 3.5 or more, and is preferably 15 or less, more preferably 10 or less, and even more preferably 7 or less, from the viewpoint of improving smoothness from application to rinsing and after drying, and maintaining the lack of squeaky feeling and tangling in a wet state. The specific range of the mass ratio (E)/(D) of component (E) to component (D) is preferably 0.1 to 15, more preferably 1 to 10, even more preferably 2 to 7, and even more preferably 3.5 to 7.

[Organic acid or its salt]
The treatment agent of the present invention preferably further contains an organic acid or a salt thereof. The organic acid or the salt thereof functions as an internal modifying component for hair or fibers for head accessories, and can provide smoother combing properties. The organic acid includes carboxylic acid compounds, preferably compounds having a molecular weight of 500 or less, more preferably 200 or less.

Carboxylic acid compounds include, for example, aliphatic monocarboxylic acids having 4 or less carbon atoms, such as acetic acid, propionic acid, butanoic acid, etc.; aromatic monocarboxylic acids, such as benzoic acid; aliphatic dicarboxylic acids, such as malonic acid, succinic acid, glutaric acid, adipic acid, maleic acid, fumaric acid, etc.; aromatic dicarboxylic acids, such as phthalic acid, isophthalic acid, etc.; polycarboxylic acids, such as polyglutamic acid; hydroxycarboxylic acids, such as lactic acid, malic acid, glycolic acid, hydroxyacrylic acid, glyceric acid, tartaric acid, citric acid, etc.; acidic amino acids, such as glutamic acid, aspartic acid, etc. Any of these can be used alone or in combination of two or more.

From the viewpoint of smoothness from application to rinsing and after drying, it is preferably one or more selected from the group consisting of succinic acid, lactic acid, malic acid and glycolic acid, more preferably one or more selected from the group consisting of succinic acid, malic acid and lactic acid, and even more preferably one or more selected from malic acid and lactic acid.

The organic acid may be at least partially in the form of an organic acid salt when blended. As the salt of the organic acid, from the viewpoint of safety when used in hair cosmetics and from the viewpoint of easy availability, an alkali metal salt or alkaline metal salt of the organic acid is preferred, an alkali metal salt is more preferred, one or more selected from the group consisting of sodium salts and potassium salts is even more preferred, and a sodium salt is even more preferred.

From the viewpoint of improving combability, the proportion of organic acid salts in the total amount of organic acids and organic acid salts is preferably 50% by mass or less, more preferably 20% by mass or less, and even more preferably 5% by mass or less, and may be 0% by mass. The proportion of organic acid salts referred to here is calculated by converting the amount of organic acid salts into the amount of organic acid.

From the viewpoint of improving combability, the content of the organic acid in the treatment agent of the present invention is preferably 0.1% by mass or more, more preferably 0.5% by mass or more, even more preferably 1% by mass or more, and preferably 5% by mass or less, more preferably 3% by mass or less, even more preferably 2% by mass or less. The specific range of the content of the organic acid in the treatment agent of the present invention is preferably 0.1 to 5% by mass, more preferably 0.5 to 3% by mass, even more preferably 1 to 2% by mass.

[Aromatic alcohol]
The treatment agent of the present invention preferably further contains an aromatic alcohol. The aromatic alcohol is used from the viewpoint of promoting the penetration of the organic acid, which functions as an internal modifying component of the hair or the fiber for head ornament products, into the inside of the hair or the fiber for head ornament products, and examples thereof include benzyl alcohol, phenoxyethanol, and 2-benzyloxyethanol. Any of these may be used alone or in combination of two or more kinds.

The content of aromatic alcohol in the treatment agent of the present invention is preferably 0.01% by mass or more, more preferably 0.05% by mass or more, even more preferably 0.1% by mass or more, from the viewpoint of promoting the penetration of organic acid into the interior of hair or fibers for head accessories, and is preferably 2% by mass or less, more preferably 1% by mass or less, even more preferably 0.5% by mass or less. The specific range of the content of aromatic alcohol in the treatment agent of the present invention is preferably 0.01 to 2% by mass, more preferably 0.05 to 1% by mass, even more preferably 0.1 to 0.5% by mass.

[Cationic surfactants other than components (A) and (B)]
The treatment agent of the present invention may contain an appropriate cationic surfactant other than components (A) and (B) from the viewpoints of imparting a suitable viscosity as a hair treatment agent or a fiber treatment agent for head ornament products and improving the feeling of use. However, from the viewpoints of maintaining the feeling of squeaking and lack of tangling in a wet state, the content of the cationic surfactant other than components (A) and (B) in the treatment agent is preferably 1% by mass or less, more preferably 0.5% by mass or less, even more preferably 0.1% by mass or less, and even more preferably the treatment agent is substantially free of cationic surfactants other than components (A) and (B).

[Anionic Surfactants]
Since the treatment agent of the present invention contains the cationic surfactants of components (A) and (B), if an excessive amount of anionic surfactant is added, the cationic surfactant and the anionic surfactant may form aggregates. Therefore, the content of the anionic surfactant in the treatment agent is preferably 0.5 mass% or less, more preferably 0.1 mass% or less, even more preferably 0.05 mass% or less, and even more preferably substantially free of anionic surfactant.

〔water〕
The treatment agent of the present invention contains water as a medium. The water constitutes the balance of components (A) to (E) and other components.

[Other optional ingredients]
The treatment agent of the present invention may further contain other components generally used in hair cosmetics or fiber treatment agents for head accessories, depending on the purpose. For example, silicones other than components (D) and (E), such as cyclic silicone, dimethiconol, polyether-modified silicone, polyglycidol-modified silicone, methylphenylpolysiloxane, fatty acid-modified silicone, alcohol-modified silicone, alkoxy-modified silicone, epoxy-modified silicone, fluorine-modified silicone, and alkyl-modified silicone; polymeric compounds, such as cationic cellulose, hydroxyalkyl cellulose, and highly polymerized polyethylene oxide; polyoxyethylene alkyl ether, polyoxyethylene sorbitan fatty acid ester, glycerin mono fatty acid ester, polyglycerin fatty acid ester, polyoxyethylene hydrogenated castor oil, and sucrose. Nonionic surfactants such as fatty acid esters, polyglycerol alkyl ethers, fatty acid alkanolamides, and alkyl glycosides; hydrocarbons such as squalene, squalane, liquid paraffin, liquid isoparaffin, and cycloparaffin; glycerides such as castor oil, cocoa oil, mink oil, avocado oil, and olive oil; waxes such as beeswax, spermaceti, lanolin, and carnauba wax; esters such as isopropyl palmitate, isopropyl myristate, octyldodecyl myristate, hexyl laurate, cetyl lactate, propylene glycol monostearate, oleyl oleate, hexadecyl 2-ethylhexanoate, isononyl isononanoate, and tridecyl isononanoate. higher fatty acids such as capric acid, lauric acid, myristic acid, palmitic acid, stearic acid, behenic acid, oleic acid, coconut oil fatty acid, lanolin fatty acid, isostearic acid, and isopalmitic acid; oils such as isostearyl glyceryl ether and polyoxypropylene butyl ether; alcohols such as ethanol, 1-propanol, 2-propanol, butanol, ethylene glycol, propylene glycol, methyl carbitol, ethyl carbitol, propyl carbitol, butyl carbitol, triethylene glycol monoethyl ether, triethylene glycol monobutyl ether, and glycerin; antibacterial agents such as zinc pyrithione and benzalkonium chloride. Examples of ingredients that may be used include dandruff agents; pH adjusters; vitamins; disinfectants; anti-inflammatory agents; preservatives; chelating agents; moisturizers such as panthenol; colorants such as dyes and pigments; extracts such as polar solvent extracts of eucalyptus, proteins or hydrolysates thereof obtained from shells or pearls having nacre, proteins or hydrolysates thereof obtained from silk, protein-containing extracts obtained from the seeds of legumes, ginseng extract, rice germ extract, hibamata extract, camellia extract, aloe extract, shell ginger leaf extract, and chlorella extract; pearl powders such as titanium mica; cooling agents such as menthol; fragrances; pigments; ultraviolet absorbers; antioxidants; and other ingredients listed in the Encyclopedia of Shampoo Ingredients (MICELLE PRESS).

[pH]
The pH of the treatment agent of the present invention is preferably 2.0 or more, more preferably 2.5 or more, and is preferably 7.5 or less, more preferably 6.5 or less, and even more preferably 5.5 or less. The specific range of the pH of the treatment agent of the present invention is preferably 2.0 to 7.5, more preferably 2.5 to 6.5, and even more preferably 2.5 to 5.5. In the present invention, the pH of the treatment agent refers to the value at 25°C when diluted 20 times by mass with water. The above pH can be measured using a pH meter.

〔viscosity〕
The viscosity of the treatment agent of the present invention is preferably in the range of 500 mPa·s to 100,000 mPa·s from the viewpoint of maintaining the absence of squeaky feeling and tangling in a wet state. From the viewpoint of applicability to hair or fibers for head ornament products and prevention of dripping from hands, hair, or fibers for head ornament products, it is preferably 1,000 mPa·s or more, more preferably 5,000 mPa·s or more, and even more preferably 10,000 mPa·s or more. In addition, from the viewpoint of ease of spreading on hair or fibers for head ornament products, the viscosity of the treatment agent of the present invention is preferably 50,000 mPa·s or less, more preferably 40,000 mPa·s or less, and even more preferably 30,000 mPa·s or less. The specific range of the viscosity of the treatment agent of the present invention is preferably 500 to 100,000 mPa·s, more preferably 1,000 to 50,000 mPa·s, even more preferably 5,000 to 40,000 mPa·s, and even more preferably 10,000 to 30,000 mPa·s. Here, in the present invention, the viscosity is measured at 30° C. using a Brookfield viscometer or a BM type viscometer. In addition, the rotor and rotation speed used during measurement are selected according to the viscosity of the treatment agent, and appropriate conditions are selected in accordance with the manual or the like.

[Form of treatment agent, treatment method for hair or fibers for head accessories]
The treatment agent of the present invention can be suitably used as an in-bath agent (a type that is applied to hair or fibers for head ornament products and then washed off) such as a pre-shampoo treatment, shampoo, hair rinse, hair conditioner, hair treatment, hair pack, or after-shampoo treatment; or an out-bath agent (a type that is applied to hair or fibers for head ornament products and then not washed off) such as a non-aerosol foam, aerosol foam, hair gel, hair mousse, hair mist, hair lotion, hair oil, or styling agent. Among these, an in-bath agent (a type that is applied to hair or fibers for head ornament products and then washed off) is preferred. The hair or fibers for head ornament products to be treated is not particularly limited, but the agent can be suitably used for hair or fibers for head ornament products after dyeing treatment such as hair coloring.

When the treatment agent of the present invention is an in-bath agent, conditioning of hair or fibers for head accessories can be performed by applying the treatment agent of the present invention to the hair or fibers for head accessories and then rinsing it off with water. This allows the treated hair or fibers for head accessories to maintain their lack of squeaky feeling and tangles in a wet state even after repeated washing.

With regard to the above-described embodiment, further preferred aspects of the present invention are disclosed below.

<1> A hair treatment agent or a fiber treatment agent for a head accessory product, comprising one or more components selected from the following components (A) to (C), as well as components (D) and (E), wherein the total content of components (D) and (E) is 1% by mass or more and 15% by mass or less.
(A) One or more cationic surfactants selected from the group consisting of ether amines or their salts, amido amines or their salts, and mono-long-chain alkyl quaternary ammonium salts having an alkyl group with 18 or more carbon atoms. (B) Mono-long-chain alkyl quaternary ammonium salts having an alkyl group with 16 or less carbon atoms, 0.1% by mass or more and 2.8% by mass or less. (C) Higher alcohol, 1% by mass or more and 15% by mass or less. (D) One or more modified silicones selected from the group consisting of amino-modified silicones and aminopolyether-modified silicones. (E) Dimethicone.

<2> The hair treatment agent or fiber treatment agent for head accessories according to <1>, wherein the etheramine is preferably a compound represented by the following general formula (1):

<3> The hair treatment agent or fiber treatment agent for head accessories according to <1> or <2>, wherein the etheramine or its salt is preferably one or more selected from N,N-dimethyl-3-hexadecyloxypropylamine or its salt, N,N-dimethyl-3-octadecyloxypropylamine or its salt, hexadecyloxy(2-hydroxypropyl)dimethylamine or its salt, and octadecyloxy(2-hydroxypropyl)dimethylamine or its salt, more preferably one or more selected from N,N-dimethyl-3-octadecyloxypropylamine or its salt, and octadecyloxy(2-hydroxypropyl)dimethylamine or its salt.

<4> A hair treatment agent or a fiber treatment agent for head accessories according to any one of <1> to <3>, wherein the amidoamine is preferably a compound represented by the following general formula (2):

<5> The hair treatment agent or fiber treatment agent for head accessories according to any one of <1> to <4>, wherein the amidoamine or its salt is preferably one or more selected from dimethylaminoethylamide stearate or its salt, dimethylaminopropylamide stearate or its salt, diethylaminoethylamide stearate or its salt, diethylaminopropylamide stearate or its salt, dipropylaminoethylamide stearate or its salt, dipropylaminopropylamide stearate or its salt, dimethylaminopropylamide behenate or its salt, and diethylaminopropylamide behenate or its salt, more preferably one or more selected from dimethylaminopropylamide stearate or its salt, diethylaminoethylamide stearate or its salt, dimethylaminopropylamide behenate or its salt, and diethylaminopropylamide behenate or its salt.

<6> A hair treatment agent or a fiber treatment agent for head accessories according to any one of <1> to <5>, wherein the mono-long-chain alkyl quaternary ammonium salt having an alkyl group having 18 or more carbon atoms is preferably a compound represented by the following general formula (3):

<7> A hair treatment agent or a fiber treatment agent for head accessories according to any one of <1> to <6>, wherein the mono long-chain alkyl quaternary ammonium salt having an alkyl group having 18 or more carbon atoms is preferably one or more selected from steartrimonium chloride, steartrimonium bromide, steartrimonium methosulfate, behentrimonium chloride, behentrimonium methosulfate, behenamidopropyltrimonium chloride, behenamidopropyltrimonium methosulfate, behenamidopropyl ethyldimonium ethosulfate, and behenamidopropyl PG-dimonium chloride.

<8> A hair treatment agent or a fiber treatment agent for head accessories according to any one of <1> to <7>, in which the content of component (A) is preferably 1 to 10 mass%, more preferably 1.5 to 5 mass%, and even more preferably 2 to 3 mass%.

<9> The hair treatment agent or fiber treatment agent for head accessories according to any one of <1> to <8>, wherein the alkyl group of the mono-long-chain alkyl quaternary ammonium salt of component (B) preferably has 12 to 16 carbon atoms, more preferably has 14 to 16 carbon atoms, and even more preferably has 16 carbon atoms.

<10> A hair treatment agent or a fiber treatment agent for head accessories according to any one of <1> to <9>, wherein component (B) is preferably one or more selected from cetrimonium chloride, cetrimonium bromide, and cetrimonium methosulfate, more preferably cetrimonium chloride.

<11> A hair treatment agent or a fiber treatment agent for head accessories according to any one of <1> to <10>, wherein the content of component (B) is preferably 0.2 to 2.5 mass% or more, more preferably 0.3 to 2.3 mass%.

<12> A hair treatment agent or a fiber treatment agent for head accessories according to any one of <1> to <11>, wherein the total content of components (A) and (B) is preferably 1.1 to 12.8% by mass, more preferably 1.7 to 7.5% by mass, and even more preferably 2.3 to 5.3% by mass.

<13> The hair treatment agent or fiber treatment agent for head accessories according to any one of <1> to <12>, wherein the mass ratio (B)/(A) of component (B) to component (A) is preferably 0.01 to 1.2, more preferably 0.05 to 1.1, even more preferably 0.1 to 1.0, and even more preferably 0.1 to 0.5.

<14> The hair treatment agent or fiber treatment agent for head accessories according to any one of <1> to <13>, wherein the carbon number of the higher alcohol of component (C) is preferably 12 to 22, more preferably 14 to 20, and even more preferably 16 to 18.

<15> A hair treatment agent or a fiber treatment agent for head accessories according to any one of <1> to <14>, wherein component (C) is preferably at least one selected from lauryl alcohol, myristyl alcohol, cetyl alcohol, stearyl alcohol, arachyl alcohol, hexyldecanol, isostearyl alcohol, oleyl alcohol, and 2-octyldodecanol, more preferably at least one selected from stearyl alcohol, cetyl alcohol, and myristyl alcohol, more preferably at least one selected from stearyl alcohol and cetyl alcohol, and even more preferably stearyl alcohol.

<16> A hair treatment agent or a fiber treatment agent for head accessories according to any one of <1> to <15>, in which the content of component (C) is preferably 3 to 12 mass%, more preferably 5 to 10 mass% or more.

<17> A hair treatment agent or a fiber treatment agent for head accessories according to any one of <1> to <16>, wherein the amino-modified silicone of component (D) is preferably represented by the following general formula (4):

<18> The hair treatment agent or fiber treatment agent for head accessories according to <17>, wherein the amino-modified silicone represented by the general formula (4) is preferably one or more selected from the group consisting of amodimethicone, aminopropyl dimethicone, bis(aminopropyl) dimethicone, and bis(cetearyl) amodimethicone, more preferably a compound represented by any one of the following general formulas (4a) to (4d), and even more preferably an amino-modified silicone (amodimethicone) represented by the following general formula (4a).

(In the formula, a, b, c and R ¹³ have the same meanings as defined above.)

<19> The hair treatment agent or fiber treatment agent for head ornament products according to any one of <1> to <18>, wherein the specific range of the kinetic viscosity of the amino-modified silicone of component (D) at 25°C is preferably ²⁰ to 10,000 mm2/s, more preferably 100 to 5,000 ^mm2 /s, and even more preferably 500 to 2,000 ^mm2 /s.

<20> A hair treatment agent or a fiber treatment agent for head accessories according to any one of <1> to <19>, wherein the amino polyether-modified silicone of component (D) is preferably represented by the following general formula (5):

<21> The hair treatment agent or fiber treatment agent for head accessories according to <20>, wherein the amino polyether-modified silicone of component (D) is more preferably represented by the following general formula (5a):

[In formula (5a), d to g have the same meanings as above.]

<22> The hair treatment agent or fiber treatment agent for head accessories according to any one of <1> to <21>, wherein the amino polyether-modified silicone of component (D) has a kinetic viscosity at 25°C of preferably 5,000 to 200,000 ^mm2 /s, more preferably 20,000 to 150,000 ^mm2 /s, and even more preferably 40,000 to 100,000 ^mm2 /s.

<23> The hair treatment agent or fiber treatment agent for head accessories according to any one of <1> to <22>, wherein the content of component (D) is preferably 0.1 to 10 mass%, more preferably 0.4 to 7 mass%, and even more preferably 0.8 to 5 mass%.

<24> A hair treatment agent or a fiber treatment agent for head ornament products according to any one of <1> to <23>, wherein the kinetic viscosity of the dimethicone component (E) at 25°C is preferably 500 to 1,000,000 ^mm2 /s, more preferably 1,000 to 500,000 ^mm2 /s, even more ^preferably 5,000 to 300,000 ^mm2 /s, still more preferably 10,000 to 200,000 ^mm2 /s, still more preferably 30,000 to 200,000 ^mm2 /s, and even more preferably 50,000 to 200,000 mm2/s.

<25> The hair treatment agent or fiber treatment agent for head accessories according to any one of <1> to <24>, wherein the content of component (E) is preferably 0.1 to 10 mass%, more preferably 1 to 8 mass%, and even more preferably 2 to 6 mass%.

<26> A hair treatment agent or a fiber treatment agent for a head accessory according to any one of <1> to <25>, preferably containing component (D) and component (E).

<27> The hair treatment agent or fiber treatment agent for head accessories according to any one of <1> to <26>, wherein the total content of components (D) and (E) is preferably 1 to 12 mass%, more preferably 1 to 10 mass%, even more preferably 2 to 10 mass%, even more preferably 3 to 10 mass%, and even more preferably 5 to 8 mass% or more.

<28> The hair treatment agent or fiber treatment agent for head accessories according to any one of <1> to <27>, wherein the mass ratio (E)/(D) of component (E) to component (D) is preferably 0.1 to 15, more preferably 1 to 10, even more preferably 2 to 7, and even more preferably 3.5 to 7.

<29> A hair treatment agent or a fiber treatment agent for a head accessory product, comprising one or more selected from the following components (A) to (C), as well as components (D) and (E), wherein the total content of components (D) and (E) is 1 to 10 mass%.
(A) 1 to 5% by mass of one or more cationic surfactants selected from the group consisting of ether amines represented by general formula (1) or salts thereof, amido amines represented by general formula (2) or salts thereof, and mono-long-chain alkyl quaternary ammonium salts having an alkyl group having 18 or more carbon atoms represented by general formula (3).

[In the formula, R ⁶ represents a saturated or unsaturated, linear or branched alkyl group having 18 to 22 carbon atoms, R ¹⁰ -CO-NH-(CH ₂ ) _a - or R ¹⁰ -CO-O-(CH ₂ ) _a - (R ¹⁰ represents a saturated or unsaturated, linear or branched alkyl chain having 18 to 21 carbon atoms, and a represents an integer of 1 to 4), R ⁷ , R ⁸ and R ⁹ independently represent an alkyl group having 1 to 4 carbon atoms or a hydroxylalkyl group having 1 to 4 carbon atoms, and X ^- represents a chloride ion, a bromide ion, a methosulfate ion or an ethosulfate ion.]
(B) 0.1 to 2.5% by mass of mono-long chain alkyl quaternary ammonium salt having an alkyl group with 16 carbon atoms
(C) Linear or branched chain saturated aliphatic alcohols having 12 to 22 carbon atoms: 5 to 10% by mass
(D) One or more modified silicones selected from the group consisting of amino-modified silicones and aminopolyether-modified silicones. (E) Dimethicone.

<30> A hair treatment agent or a fiber treatment agent for a head accessory product, comprising one or more selected from the following components (A) to (C), as well as components (D) and (E), wherein the total content of components (D) and (E) is 1 to 10 mass%.
(A) 1 to 5% by mass of one or more cationic surfactants selected from the group consisting of ether amines represented by general formula (1) or salts thereof

[In the formula, R ¹ represents a linear or branched alkyl or alkenyl group having 6 to 24 carbon atoms, R ² and R ³ may be the same or different, and represent an alkyl group having 1 to 6 carbon atoms or -(A ¹ O) _m H (A ¹ represents an alkylene group having 2 to 4 carbon atoms, m represents a number from 1 to 6, m A ¹ Os may be the same or different, and the arrangement is arbitrary), and Y represents a hydrogen atom or a hydroxyl group.]
(B) 0.1 to 2.5% by mass of mono-long chain alkyl quaternary ammonium salt having an alkyl group with 16 carbon atoms
(C) Linear or branched chain saturated aliphatic alcohols having 12 to 22 carbon atoms: 5 to 10% by mass
(D) One or more modified silicones selected from the group consisting of amino-modified silicones represented by any one of the general formulas (1a) to (1d): (E) Dimethicone having a kinetic viscosity at 25°C of 5,000 to 200,000 ^mm2 /s.

<31> A hair treatment agent or a fiber treatment agent for head accessories according to <29> or <30>, in which the mass ratio (E)/(D) of component (E) to component (D) is 3.5 or more and 7 or less.

<32> A hair treatment agent or a fiber treatment agent for a head accessory according to any one of <29> to <31>, wherein the mass ratio (B)/(A) of component (B) to component (A) is in the range of either 0.1 to 0.17 or 0.1 to 0.5.

<33> The hair treatment agent or fiber treatment agent for head accessories according to any one of <1> to <32>, further comprising an organic acid or a salt thereof, the organic acid being preferably a carboxylic acid compound, more preferably a compound having a molecular weight of 500 or less, more preferably 200 or less, and even more preferably one or more selected from aliphatic monocarboxylic acids, aromatic monocarboxylic acids, aliphatic dicarboxylic acids, aromatic dicarboxylic acids, polycarboxylic acids, hydroxycarboxylic acids, and acidic amino acids.

<34> The hair treatment agent or fiber treatment agent for head accessories according to <33>, wherein the organic acid is preferably at least one selected from the group consisting of acetic acid, propionic acid, butanoic acid, benzoic acid, malonic acid, succinic acid, glutaric acid, adipic acid, maleic acid, fumaric acid, phthalic acid, isophthalic acid, polyglutamic acid, lactic acid, malic acid, glycolic acid, hydroxyacrylic acid, glyceric acid, tartaric acid, citric acid, glutamic acid, and aspartic acid, more preferably at least one selected from the group consisting of succinic acid, lactic acid, malic acid, and glycolic acid, even more preferably at least one selected from the group consisting of succinic acid, malic acid, and lactic acid, and even more preferably at least one selected from malic acid and lactic acid.

<35> The hair treatment agent or fiber treatment agent for head accessories according to <33> or <34>, wherein the salt of the organic acid is preferably an alkali metal salt or alkaline metal salt of the organic acid, more preferably an alkali metal salt, more preferably at least one selected from the group consisting of sodium salts and potassium salts, and even more preferably a sodium salt.

<36> The hair treatment agent or fiber treatment agent for head accessories according to any one of <33> to <35>, wherein the proportion of the organic acid salt in the total amount of the organic acid and the organic acid salt is preferably 50% by mass or less, more preferably 20% by mass or less, and even more preferably 5% by mass or less, calculated as the organic acid equivalent, and may be 0% by mass.

<37> The hair treatment agent or fiber treatment agent for head accessories according to any one of <1> to <36>, further comprising an aromatic alcohol, preferably at least one selected from the group consisting of benzyl alcohol, phenoxyethanol, and 2-benzyloxyethanol.

<38> The hair treatment agent or fiber treatment agent for head accessories according to <37>, wherein the content of the aromatic alcohol is preferably 0.01 to 2 mass%, more preferably 0.05 to 1 mass%, and even more preferably 0.1 to 0.5 mass%.

<39> The hair treatment agent or fiber treatment agent for head accessories according to any one of <1> to <38>, wherein the content of cationic surfactants other than component (A) and component (B) is preferably 1 mass% or less, more preferably 0.5 mass% or less, even more preferably 0.1 mass% or less, and even more preferably 0 mass%.

<40> The hair treatment agent or fiber treatment agent for head accessories according to any one of <1> to <39>, wherein the content of the anionic surfactant is preferably 0.5% by mass or less, more preferably 0.1% by mass or less, even more preferably 0.05% by mass or less, and even more preferably 0% by mass.

<41> The hair treatment agent or fiber treatment agent for head accessories according to any one of <1> to <40>, having a pH of preferably 2.0 to 7.5, more preferably 2.5 to 6.5, and even more preferably 2.5 to 5.5.

<42> The hair treatment agent or fiber treatment agent for head accessories according to any one of <1> to <41>, having a viscosity of preferably 500 to 100,000 mPa·s, more preferably 1,000 to 50,000 mPa·s, even more preferably 5,000 to 40,000 mPa·s, and even more preferably 10,000 to 30,000 mPa·s.

<43> The hair treatment agent or fiber treatment agent for head accessories according to any one of <1> to <42>, which is preferably applied to hair or fibers for head accessories and then rinsed off before use.

<44> The hair treatment agent or fiber treatment agent for head accessories according to any one of <1> to <43>, which is preferably used on dyed hair or fibers for head accessories.

<45> A method for treating hair or fibers for head accessories, comprising applying the hair treatment agent or fiber treatment agent for head accessories described in any one of <1> to <44> to dyed hair or fibers for head accessories, and rinsing the hair or fibers for head accessories with water.

[Examples 1 to 19 and Comparative Examples 1 to 8]
The hair conditioners shown in Tables 5 and 6 were prepared by the following manufacturing method, and the appearance was observed or the viscosity was measured, and the durability of the conditioning effect (combing force) on wet hair after the first wash and after the third wash was evaluated according to the following methods and criteria. The contents shown in the tables are the active amounts.

(Production method)
Hair conditioners were prepared in the following manner using the components in the amounts shown in Tables 5 and 6. To obtain a total volume of 500 mL of hair conditioner, each component was mixed in an amount 5 times (mL) the amount shown in the table.
In a 500 mL beaker containing water, cetrimonium chloride (component (B)) or steartrimonium chloride (component (B')), and lactic acid (40% of the total amount) were added and heated and stirred at 56 ° C. Next, a cationic surfactant (component (A) or (A')), a higher alcohol (component (C)), and benzyl alcohol were mixed in advance, and the oily phase obtained by dissolving at 76 ° C. was added and stirred at 56 ° C. for 10 minutes. After stirring for 10 minutes, heating was stopped and air cooling was started. After air cooling, silicones (components (D) and (E)) as shown in each table, as well as malic acid and the remaining lactic acid were added, and the mixture was cooled with stirring until the liquid temperature reached 40 ° C. or less, to obtain 500 mL of hair conditioner.

(Appearance Evaluation)
The hair conditioners shown in Tables 5 and 6 were left to stand at room temperature for 24 hours and visually observed for the presence or absence of separation. In the tables, those that were stable without separation were marked with "O", and those that separated were marked with "X".

(Viscosity Measurement)
The viscosity (30°C) of the hair conditioners shown in Tables 5 and 6 was measured using a B-type viscometer (manufactured by Toki Sangyo Co., Ltd., TVB-10) with a spindle of "TC", at 10 rpm, and for 1 minute when the viscosity was 10,000 mPa s or more, and using a BM-type viscometer (manufactured by Toki Sangyo Co., Ltd., TV-10) with a rotor of "No. 3", at 12 rpm, and for 1 minute when the viscosity was less than 10,000 mPa s.

(Evaluation of non-stickiness after drying)
Evaluation Procedure 1. Wash 30 g of Japanese tresses with the plain shampoo shown in Table 1, and allow it to absorb 15.0 g of water.
2. Apply 1 mL of each of the hair conditioners shown in Tables 5 and 6, massage with your hands, leave for 30 seconds, and then rinse for 15 seconds.
3. After towel drying and drying with a hair dryer, five expert panelists evaluated the lack of stickiness after drying using the following evaluation criteria.

〔Evaluation criteria〕
1 point: Sticky 2 points: Slightly sticky 3 points: Neither sticky nor sticky 4 points: Not very sticky 5 points: Not sticky

(Method for evaluating the durability of conditioning effect on wet hair after the first wash)
Pretreatment: A hair coloring agent (liquid 1 shown in Table 2 and liquid 2 shown in Table 3 were mixed at a ratio of 1:1.5) was applied to 30 g of Japanese hair tresses in a bath ratio of 1:1, left for 5 minutes, and then washed off.

Evaluation Procedure 1. After the above pretreatment, 30 g of Japanese hair tress was washed with the plain shampoo shown in Table 1, rinsed, and allowed to absorb 15.0 g of water.
2. 1 mL of each of the hair conditioners shown in Tables 5 and 6 was applied, massaged into the hair with the hands, left on for 30 seconds, and then rinsed for 15 seconds.
3. After towel drying and drying with a hair dryer, the hair was washed for 30 seconds by rubbing the front and back 20 times with 1 mL of plain shampoo shown in Table 1, and then rinsed for 15 seconds. Then, 1 mL of plain rinse shown in Table 4 was applied for 30 seconds, and rinsed for 15 seconds.
4. The tresses were thoroughly detangled with a brush and then the moisture content was adjusted to 15g.
5. The combing force when combing 30 times with a brush at a constant speed (once per second) was measured using the dynamic combing force method (Suzuki et al.; J. Soc. Cosmet. Chem. Japan. Vol. 27, No.1, pp. 11-13, 1993), and the average of the 30 measured values (maximum value) was calculated and used as an index for evaluating the durability of the conditioning effect. The smaller the combing force value, the easier and smoother the combing process.

(Method for evaluating durability of conditioning effect on wet hair after three washes)
The combing force was measured and the evaluation was performed in the same manner as in the above "Method of evaluating the durability of conditioning effect on wet hair immediately after treatment", except that step 3 of the evaluation procedure was repeated a total of three times.

In addition, the combing force of tresses when using the plain rinse shown in Table 4 as the hair conditioner in step 2 above is listed in each table as a reference example.

*1: Farmin DM-E80, manufactured by Kao Corporation *2: Amidet APA22, manufactured by Kao Spain S.A. *3: Coatamin 2285E, manufactured by Kao Corporation *4: Kawasoft EP59S, manufactured by Kawaken Fine Chemicals S.A. *5: Coatamin 60W, manufactured by Kao Corporation *6: Coatamin 86W, manufactured by Kao Corporation *7: Kalcol 8098, manufactured by Kao Corporation *8: Silicone SF 8457 C, manufactured by Dow Toray Co., Ltd. *9: Silicone KHS-3, manufactured by Shin-Etsu Chemical Co., Ltd. *10: Silicone KHS-9, manufactured by Shin-Etsu Chemical Co., Ltd.

Claims

A hair treatment agent or a fiber treatment agent for a head accessory product, comprising one or more components selected from the following components (A) to (C), as well as components (D) and (E), wherein the total content of components (D) and (E) is 1% by mass or more and 15% by mass or less.
(A) One or more cationic surfactants selected from the group consisting of ether amines or their salts, amido amines or their salts, and mono-long-chain alkyl quaternary ammonium salts having an alkyl group with 18 or more carbon atoms. (B) Mono-long-chain alkyl quaternary ammonium salts having an alkyl group with 16 or less carbon atoms, 0.1% by mass or more and 2.8% by mass or less. (C) Higher alcohol, 1% by mass or more and 15% by mass or less. (D) One or more modified silicones selected from the group consisting of amino-modified silicones and aminopolyether-modified silicones. (E) Dimethicone.
The hair treatment agent or fiber treatment agent for head accessories according to claim 1, wherein the total content of components (D) and (E) is 1% by mass or more and 10% by mass or less.
The hair treatment agent or fiber treatment agent for head accessories according to claim 1 or 2, in which the mass ratio (B)/(A) of component (B) to component (A) is 0.01 or more and 1.2 or less.
The hair treatment agent or fiber treatment agent for head accessories according to any one of claims 1 to 3, containing component (D) and component (E).
The hair treatment agent or fiber treatment agent for head accessories according to any one of claims 1 to 4, wherein the mass ratio (E)/(D) of component (E) to component (D) is 0.1 or more and 15.0 or less.
The hair treatment agent or fiber treatment agent for head accessories according to any one of claims 1 to 5, wherein component (B) is a mono-long-chain alkyl quaternary ammonium salt having an alkyl group having 12 to 16 carbon atoms.
The hair treatment agent or fiber treatment agent for head accessories according to any one of claims 1 to 6, wherein the content of component (B) is 0.3% by mass or more and 2.3% by mass or less.
8. The hair treatment agent or fiber treatment agent for head ornament products according to any one of claims 1 to 7, wherein component (E) is dimethicone having a kinetic viscosity at 25°C of 30,000 mm 2 /s or more and 200,000 mm 2 /s or less.
The hair treatment agent or fiber treatment agent for head accessories according to any one of claims 1 to 8, which is used on dyed hair or fibers for head accessories.
A method for treating hair or fibers for head accessories, comprising applying the hair treatment agent or fiber treatment agent for head accessories described in any one of claims 1 to 8 to dyed hair or fibers for head accessories, and rinsing the hair or fibers for head accessories with water.