JP2008115097A - Hair-treating agent - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a hair-treating agent capable of recovering hairs to their original state by suppressing leaps or undulations formed at a tip end of the hairs on which excessive damages accumulate, suppressing the deterioration of touch feeling of the hairs, and uniformly dyeing from the root to the tip end of the hairs. <P>SOLUTION: This hair-treating agent contains the following components (a) and (b): (a) a quaternary ammonium salt expressed by general formula (1) [wherein, R<SP>1</SP>is a 6-18C hydrocarbon group; R<SP>2</SP>and R<SP>3</SP>are each the same or different and a 1-3C alkyl, (n) is an integer of 0 to 2; and X<SP>-</SP>is an anion] and having 30 to 100% ratio occupied by a ≤10 C hydrocarbon group in the total hydrocarbon group R<SP>1</SP>based on the chemical formula amount of the R<SP>1</SP>, and rest by a ≥11C hydrocarbon group. (b) A direct dyestuff. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a hair treatment agent.

  Dyeing and decolorization damages hair, but if you repeat these steps, the hair ends are more likely to be dyed and decolored than others, and this is likely to cause splashing and undulation due to the damage. As a result, styling becomes worse. In addition, there is a difference in the degree of damage between the hair tips and other portions, which causes a problem that it is difficult to uniformly dye from the root to the hair tips.

  Therefore, as a hair dye that simultaneously imparts styling properties and a conditioning effect to hair, Patent Document 1 uses a water-soluble cationic polymer and a water-soluble anionic active agent together to provide a hair styling effect that is somewhat durable. Disclosed are compositions to be applied. Further, Patent Document 2 proposes a composition in which a specific organic acid, sulfonic acid and an organic solvent are used in combination as a composition for correcting jumping and undulation.

  However, these compositions do not sufficiently improve the “swell” due to hair damage that occurs in each hair, even though they seem to improve the overall unity of the hair. Moreover, it has been difficult to achieve both high dyeability and the effect of improving the undulation of the hair tips caused by the accumulation of damage.

JP 58-157713 A JP-A-8-92043

  The present invention is a hair treatment agent capable of suppressing the splashing and undulation that occurs on the hair tip that has accumulated excessive damage, restoring it to its original shape, suppressing the deterioration of hair feel, and uniformly dyeing from the root to the hair tip. The purpose is to provide.

  The present inventor has found that the combination of a specific ammonium salt and a direct dye can alleviate the undulation of hair with accumulated damage, suppress the deterioration of touch, and satisfy the dyeability.

That is, the present invention provides a hair treatment agent containing components (a) and (b).
(a) The ratio of the hydrocarbon group represented by the general formula (1) and having 10 or less carbon atoms in the total hydrocarbon group R ¹ is 30 to 100% in terms of the chemical formula of R ¹ , and the balance is 11 or more carbon atoms Quaternary ammonium salt which is a hydrocarbon group of

Wherein, R ¹ represents a hydrocarbon group having 6 to 18 carbon atoms, R ² and R ³ represents an alkyl group having 1 to 3 carbon atoms which may be the same or different, n represents integer of 0 to 2 And X ⁻ represents an anion. ]
(b) Direct dye

  The hair treatment agent of the present invention can suppress damage caused by accumulation of hair damage, in particular, bounce and undulation that occurs at the tip of the hair and restore it to its original state, and can suppress deterioration of the feel, even from the root to the tip of the hair. Can be stained.

Component (a) is a quaternary ammonium salt represented by general formula (1), and hydrocarbon groups having 6 to 18 carbon atoms represented by R ¹ in general formula (1) are distributed in chain length. The proportion of hydrocarbon groups having 10 or less carbon atoms may be 30 to 100% in terms of the chemical formula of R ¹ , and the balance is hydrocarbon groups having 11 or more carbon atoms. ratio of the number 10 or less hydrocarbon groups, 60% to 100% as a chemical formula weight of R ^1, in particular 80% to 100%, the remainder is a hydrocarbon group having 11 or more carbon atoms. The hydrocarbon group represented by R ¹ may be saturated, unsaturated, linear or branched, and is preferably an alkyl group or an alkenyl group, particularly an alkyl group. R ² and R ³ are preferably methyl groups, and n is preferably 1. As an anion of X ⁻ , a halide ion is preferable. Examples of the halide ion include fluoride ion, chloride ion, iodide ion, bromide ion, etc. Among these, chloride ion is preferable.

  Examples of component (a) include hexylbenzyldimethylammonium chloride, octylbenzyldimethylammonium chloride, decylbenzyldimethylammonium chloride, mixtures thereof and the like.

  The quaternary ammonium salt of component (a) can be used singly or in combination of two or more, and the content thereof is from the viewpoint of good touch during hair washing and stability of the composition. The total amount of the hair treatment agent is preferably 0.05 to 5% by mass, more preferably 0.05 to 3% by mass, and particularly preferably 0.1 to 2% by mass.

  Examples of the direct dye of component (b) include acid dyes, nitro dyes, disperse dyes, basic dyes, and direct dyes described in JP-A-2003-342139. Examples of acid dyes include blue No. 1, purple No. 401, black No. 401, orange color No. 205, red No. 227, red No. 106, yellow No. 203, acidic orange 3, etc., and nitro dyes include 2-nitro Paraphenylenediamine, 2-amino-6-chloro-4-nitrophenol, 3-nitro-p-hydroxyethylaminophenol, 4-nitroorthophenylenediamine, 4-amino-3-nitrophenol, 4-hydroxypropylamino- 3-nitrophenol, HC blue 2, HC orange 1, HC red 1, HC yellow 2, HC yellow 4, HC yellow 5, HC red 3, N, N-bis- (2-hydroxyethyl) -2-nitropara Examples include disperse dyes such as disperse purple 1, disperse blue 1, disperse black 9, etc., and basic dyes include basic blue 99, basic tea 16, basic tea 17, and base. Basic red 76, basic red 51, basic yellow 57, basic yellow 87, basic orange 31 and the like, Japanese Patent Application Laid-Open No. 2003-34213 Examples of the direct dye described in No. 9 include direct dyes (P), direct dyes (Q), and direct dyes (R) (hereinafter the same) represented by the following formulas.

  The direct dye of component (b) can be used alone or in combination of two or more, and the content thereof is 0.001 to 5% by mass, particularly 0.01 to 3% by mass in the total amount of the hair treatment agent of the present invention. Is preferred.

  The hair treatment agent of the present invention can further contain an organic solvent. Examples of the organic solvent include lower alkanols such as ethanol, isopropanol, n-propanol, n-butanol, and isobutanol; polyols such as glycerin, ethylene glycol, propylene glycol, 1,3-butanediol, and benzylglycerol; benzyl Aromatic alcohols such as alcohol, cinnamyl alcohol, phenethyl alcohol, p-anisyl alcohol, p-methylbenzyl alcohol, phenoxyethanol, phenoxyisopropanol, 2-benzyloxyethanol; methyl carbitol, ethyl carbitol, propyl carbitol, Carbitols such as butyl carbitol; Glycol ethers such as triethylene glycol monoethyl ether and triethylene glycol monobutyl ether; N-methyl pyro Don, N- octyl pyrrolidone, pyrrolidones such as N- lauryl pyrrolidone, ethylene carbonate, carbonates such as propylene carbonate; N- benzyl formamide, and the like.

  Two or more organic solvents may be used in combination, and the content thereof is 0.01 to 50% by mass, particularly 0.1 to 35% by mass, based on the total amount of the hair treatment agent of the present invention, in that a sufficient hair dyeing effect can be obtained. % Is preferred.

  The pH of the hair treatment agent of the present invention is not particularly limited. However, when an acid dye is used as a direct dye, the pH is preferably from 2.0 to 6.0, preferably from 2.0 to 5.0, particularly from 2.5 to 4.0, in order to suppress damage to the hair and scalp and obtain a good hair coloring effect. Preferably there is. When a basic dye or a direct dye described in JP-A-2003-342139 is used as the direct dye, the pH is preferably 5 to 11 and particularly 8 to 11 in order to obtain a good hair dyeing effect. Is preferred.

  As a pH adjuster, an organic acid, an inorganic acid, an organic base, an inorganic base, or a salt thereof can be used alone or in combination.

  Examples of organic acids include aromatic acids such as citric acid, glycolic acid, succinic acid, tartaric acid, lactic acid, fumaric acid, malic acid, levulinic acid, butyric acid, valeric acid, oxalic acid, maleic acid, mandelic acid, salicylic acid, and benzoic acid. Amino acids such as carboxylic acid, glycine, alanine, glutamic acid, aspartic acid and the like can be mentioned, and examples of the inorganic acid include phosphoric acid, sulfuric acid, nitric acid and the like. Examples of these acid salts include alkanolamine salts such as sodium salts, potassium salts, ammonium salts, and triethanolamine salts.

  These organic acids or inorganic acids can be used alone or in combination of two or more, and the blending amount thereof is from the viewpoint of sufficient hair dyeing / bleaching effect and reduction of hair damage and scalp irritation. 0.01-30 mass% in the total amount of the hair treatment agent of this invention is preferable, 0.01-20 mass% is further preferable, and 0.01-10 mass% is especially preferable.

  Organic bases or inorganic bases include ammonia and salts thereof; alkanolamines and salts thereof such as monoethanolamine, isopropanolamine, 2-amino-2-methylpropanol, and 2-aminobutanol; alkanes such as 1,3-propanediamine Examples thereof include diamines and salts thereof; carbonates such as guanidine carbonate, sodium carbonate, potassium carbonate, sodium hydrogen carbonate, potassium hydrogen carbonate; and hydroxide salts such as sodium hydroxide and potassium hydroxide.

  These organic bases or inorganic bases can be used singly or in combination of two or more, and the content thereof is from the viewpoint of sufficient hair dyeing / bleaching effect and reduction of hair damage and scalp irritation. The amount of the hair treatment agent of the present invention is preferably 0.05 to 15% by mass, more preferably 0.1 to 10% by mass, and particularly preferably 0.2 to 5% by mass.

  The hair treatment agent of the present invention can contain a surfactant. As the surfactant, any of a cationic surfactant, a nonionic surfactant, an amphoteric surfactant, and an anionic surfactant can be used.

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

  Nonionic surfactants include polyoxyalkylene alkyl ether, polyoxyalkylene alkenyl ether, higher fatty acid sucrose ester, polyglycerin fatty acid ester, higher fatty acid mono- or diethanolamide, polyoxyethylene hydrogenated castor oil, polyoxyethylene sorbitan fatty acid Examples thereof include esters, polyoxyethylene sorbite fatty acid esters, alkyl saccharide surfactants, alkyl amine oxides, and alkyl amido amine oxides. Of these, polyoxyalkylene alkyl ether and polyoxyethylene hydrogenated castor oil are preferable, and polyoxyethylene alkyl ether is particularly preferable.

  Examples of amphoteric surfactants include imidazoline series, carbobetaine series, amide betaine series, sulfobetaine series, hydroxysulfobetaine series, and amide sulfobetaine series.

  Anionic surfactants include alkyl benzene sulfonates, alkyl or alkenyl ether sulfates, alkyl or alkenyl sulfates, olefin sulfonates, alkane sulfonates, saturated or unsaturated fatty acid salts, alkyl or alkenyl ether carboxylates, Examples include α-sulfone fatty acid salts, N-acyl amino acid type surfactants, phosphate mono- or diester type surfactants, and sulfosuccinate esters. Examples of the alkyl ether sulfate include polyoxyethylene alkyl ether sulfate. Counter ions of the anionic residues of these anionic surfactants include alkali metal ions such as sodium ion and potassium ion; alkaline earth metal ions such as calcium ion and magnesium ion; ammonium ion; alkanol having 2 or 3 carbon atoms Examples thereof include alkanolamines having 1 to 3 groups (for example, monoethanolamine, diethanolamine, triethanolamine, triisopropanolamine, etc.).

  The content of the surfactant is preferably 0.1 to 30% by mass, and particularly preferably 0.5 to 20% by mass in the total composition in terms of feel and emulsification performance.

  The hair treatment agent of the present invention may further contain a cationic polymer. The cationic polymer refers to a polymer having a cationic group or a group that can be ionized into a cationic group, and includes an amphoteric polymer that becomes cationic as a whole. That is, as the cationic polymer, an aqueous solution containing an amino group or an ammonium group in the side chain of the polymer chain or containing a diallyl quaternary ammonium salt as a structural unit, such as a cationized cellulose derivative, a cationic starch, a cationization Examples include guar gum derivatives, diallyl quaternary ammonium salt polymers or copolymers, and quaternized polyvinylpyrrolidone derivatives. Among these, diallyl quaternary ammonium salt is included as a structural unit particularly in terms of softness during shampooing, smoothness and ease of fingering, ease of packing during drying and moisturizing effect, and stability of the agent. Polymers, quaternized polyvinylpyrrolidone derivatives, and cationized cellulose derivatives are preferred, and polymers or copolymers of diallyl quaternary ammonium salts and cationized cellulose derivatives are more preferred.

  As the skeleton of the diallyl quaternary ammonium salt polymer, one represented by the following general formula (2) or (3) is preferable.

[In the formula, R ⁴ and R ⁵ may be the same or different, and are a hydrogen atom, 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 alkoxy group. Represents an alkyl group or a carboalkoxyalkyl group, R ⁶ and R ⁷ may be the same or different, each represents a hydrogen atom, an alkyl group having 1 to 3 carbon atoms or a phenyl group, and An ⁻ represents an anion (chloride ion, Bromide ion, iodide ion, sulfate anion, sulfonate anion, methyl sulfate anion, phosphate anion, nitrate anion, etc.). ]

  Examples of the monomer constituting the copolymer with the diallyl quaternary ammonium salt include acrylic acid, methacrylic acid or salts thereof, and acrylamide, and acrylic acid, methacrylic acid or salts thereof are particularly preferable. A copolymer of acrylic acid, methacrylic acid or a salt thereof and a diallyl quaternary ammonium salt has a high constituent ratio of diallyl quaternary ammonium salt, and becomes a cationic polymer as a whole.

  Specific examples of the polymer or copolymer of diallyl quaternary ammonium salt include dimethyldiallylammonium chloride polymer (Polyquaternium-6, such as Marquat 100; ONDEO Nalco), dimethyldiallylammonium chloride / acrylic acid copolymer (Polyquaternium) -22, such as Marquat 280, 295; ONDEO Nalco), dimethyldiallylammonium chloride / acrylamide copolymer (Polyquaternium-7, such as Marquat 550; ONDEO Nalco), etc. preferable.

  As the quaternized polyvinylpyrrolidone derivative, those represented by the following general formula (4) are preferable.

[In the formula, R ⁸ represents a hydrogen atom or an alkyl group having 1 to 3 carbon atoms, and R ⁹ , R ¹⁰ and R ¹¹ may be the same or different; a hydrogen atom, an alkyl group having 1 to 4 carbon atoms, hydroxy An alkyl group, an amidoalkyl group, a cyanoalkyl group, an alkoxyalkyl group or a carboalkoxyalkyl group; B represents an oxygen atom or an imino group; r represents an integer of 1 to 10; Represents a number of ˜8000, and An ⁻ has the same meaning as described above. ]

  The molecular weight of the quaternized polyvinylpyrrolidone derivative used in the present invention is preferably 10,000 to 2,000,000, particularly preferably 50,000 to 1,500,000. Examples of commercially available products include Guff Coat 734, 755, and 755N (hereinafter referred to as IP Japan).

  As the cationized cellulose derivative, for example, those represented by the following general formula (5) are preferable.

[In the formula, G represents a residue of an anhydroglucose unit, f represents an integer of 50 to 20,000, and R ¹² represents a substituent represented by the following general formula (6). ]

[Wherein R ¹³ and R ¹⁴ represent an alkylene group having 2 or 3 carbon atoms, g represents an integer of 0 to 10, h represents an integer of 0 to 3, and i represents an integer of 0 to 10] R ¹⁵ represents an alkylene group having 1 to 3 carbon atoms or a hydroxyalkylene group, R ¹⁶ , R ¹⁷ and R ¹⁸ may be the same or different and each represents an alkyl group, aryl group or aralkyl group having up to 10 carbon atoms, Moreover, you may form the heterocyclic ring containing the nitrogen atom in a formula. An ^- has the same meaning as above. ]

  The cation substitution degree of the cationized cellulose derivative, that is, the average value of h per anhydroglucose unit is preferably 0.01 to 1, particularly 0.02 to 0.5 from the viewpoint of reaction yield. The total of g + i is preferably 1 to 3 on average. The molecular weight of the cationized cellulose derivative used here is preferably 100,000 to 3,000,000. Commercially available products include Leo Guard G, GP (above, Lion), Polymer JR-125, JR-400, JR-30M, LR-400, LR-30M (above, Union Carbide). Can be mentioned. Examples of other cationized cellulose derivatives include hydroxyethyl cellulose dimethyl diallylammonium chloride, and examples of commercially available products include Cellcoat H-100 and L-200 (National Starch and Chemical Co., Ltd.).

  These cationic polymers may be used in combination of two or more. From the viewpoint of improving the touch, the content of the cationic polymer is preferably 0.001 to 20% by mass in the total amount of the hair treatment agent of the present invention, 0.01 to 10% by mass, particularly 0.05 to 5% by mass is preferable.

  The hair treatment agent of the present invention preferably contains silicones in order to give an excellent feeling of use. Examples of silicones include polysiloxanes, modified silicones (for example, amino-modified silicone, fluorine-modified silicone, alcohol-modified silicone, polyether-modified silicone, epoxy-modified silicone, alkyl-modified silicone, etc.), and cyclic polysiloxane. Polysiloxanes and amino-modified silicones are preferable, and it is more preferable to use dimethylpolysiloxane and amino-modified silicone in combination.

  Polysiloxanes include, for example, highly polymerized silicones having a number average polymerization degree of 1000 or more, further 1500 or more, particularly 2000 or more and less than 20000. SH200-1,000,000cs (Toray Dow Corning), TSF451-100MA (GE Toshiba Silicone Co., Ltd.), BY11-026 (Toray Dow Corning Co .; diluted solution of highly polymerized silicone with low-viscosity silicone), KF9008 (Shin-Etsu Silicone; diluted polymer solution of highly polymerized silicone with cyclic silicone), BY22-050A (Toray Dow Corning; Cationic emulsion of highly polymerized silicone), BY22-060 (Toray Dow Corning; Cationic emulsion of high polymerized silicone diluted with low viscosity silicone), BY22-020 (Toray Dow Corning, high polymerisation) Cationic emulsion of a solution of silicone diluted with liquid paraffin), KM904 (Shin-Etsu Silicone Co., Ltd .; highly polymerized silicone) It can be used those commercially available as a solution cationic emulsions) or the like diluted with a low viscosity silicone.

  The amino-modified silicone may be any silicone having an amino group or an ammonium group, such as amino-modified silicone oil in which all or part of the terminal hydroxyl groups are blocked with methyl groups, amodimethicone in which the terminals are not blocked, etc. There is. Preferred amino-modified silicones include those represented by the following general formula (7).

[Wherein R ¹⁹ represents a hydroxyl group, a hydrogen atom or R, R represents a substituted or unsubstituted monovalent hydrocarbon group having 1 to 20 carbon atoms, D represents R, a group —R ′ — (NHCH ₂ CH ₂ ) _m NH ₂ , a group OR or a hydroxyl group, R ′ represents a divalent hydrocarbon group having 1 to 8 carbon atoms, m represents a number of 0 to 3, and p and q are the number average of the sum. 10 to less than 20000, preferably 10 to less than 3000, more preferably 30 to less than 1000, and still more preferably 40 to less than 800. The amino equivalent is 200 g / mol to 100,000 g / mol, preferably 200 g / mol to 30,000 g / mol, more preferably 400 g / mol to 10,000 g / mol, and still more preferably 600 g / mol to 5000 g / mol. . ]

Specific examples of suitable commercially available amino-modified silicones include SF8451C (Toray Dow Corning, viscosity 600 mm ² / s, amino equivalent 1700 g / mol), SF8452C (Toray Dow Corning, viscosity 700 mm ² / s, amino Equivalent 6400 g / mol), SF8457C (Toray Dow Corning, viscosity 1200mm ² / s, amino equivalent 1800g / mol), KF8003 (Shin-Etsu Chemical Co., Ltd., viscosity 1850mm ² / s, amino equivalent 2000g / mol), KF867 (Shin-Etsu) Examples include amino-modified silicone oils such as Chemical Industry Co., Ltd., viscosity 1300 mm ² / s, amino equivalent 1700 g / mol), and amodimethicone emulsions such as SM8704C (Toray Dow Corning, amino equivalent 1800 g / mol). The amino-modified silicone oil may be blended in the form of an emulsion. Emulsions of amino-modified silicones can be obtained by mechanical emulsification (high shear mechanical mixing of amino-modified silicone and water), chemical emulsification (emulsification of amino-modified silicone with water and emulsifier), or combinations thereof, or by emulsion polymerization. Can be prepared.

The total content of the silicones is preferably 0.02 to 40% by mass, more preferably 0.1 to 20% by mass, particularly 0.2 to 15% by mass in the total amount of the hair treatment agent of the present invention, from the viewpoint of sufficient effects and suppression of stickiness. % Is preferred. The content ratio of each silicone is preferably such that the converted amino equivalent represented by the following formula is 500 to 100,000 g / mol, more preferably 1000 to 80,000 g / mol, and particularly 2000 to 50,000 g. A range of / mol is preferred.
Equivalent amino equivalent (g / mol) = [total mass of all silicones in 1 g of total composition (g / g)] / [total number of amino groups, imino groups and ammonium groups of amino-modified silicone in 1 g of total composition (Mol / g)

  When the silicones and the cationic polymer are contained, the mass ratio of the cationic polymer (active amount): silicones in the total amount of the hair treatment agent of the present invention is preferably 50: 1 to 1:50, and 50: 1 to 1 : 10 is more preferable.

  The hair treatment agent of the present invention preferably contains a higher alcohol from the viewpoint of improvement in touch and stability. This has the effect of forming a structure with the surfactant to prevent separation of the hair treatment agent and improving the feel during rinsing. As the higher alcohol, those having 8 to 22 carbon atoms, particularly 16 to 22 carbon atoms are preferable, and specific examples thereof include cetyl alcohol, stearyl alcohol, behenyl alcohol, and the like, and mixtures thereof.

  Two or more types of higher alcohols may be used in combination, and the content thereof is preferably 0.01 to 20% by mass, particularly preferably 0.1 to 10% by mass, based on the total amount of the hair treatment agent of the present invention.

  In the hair treatment agent of the present invention, a water-soluble polymer can be blended for the purpose of preventing dripping during use and preventing the scalp from being stained. Examples of water-soluble polymers include gum arabic, carrageenan, caraya gum, gum tragacanth, carob gum, quince seed (malmello), casein, dextrin, gelatin, sodium pectate, sodium alginate, methylcellulose, ethylcellulose, carboxymethylcellulose (CMC), hydroxyethylcellulose , Hydroxypropyl cellulose, polyvinyl alcohol (PVA), polyvinyl methyl ether (PVM), polyvinyl pyrrolidone (PVP), sodium polyacrylate, locust bean gum, guar gum, tamarint gum, dialkyldimethylammonium sulfate cellulose, xanthan gum, modified xanthan gum, silicic acid Examples include aluminum magnesium and bentonite. Of these, hydroxyethyl cellulose, xanthan gum, and modified xanthan gum are particularly preferable.

  One or more kinds of these water-soluble polymers can be used, and the blending amount thereof is preferably 0.1 to 10% by mass, particularly 0.5 to 5% by mass, based on the total amount of the hair treatment agent of the present invention.

  In addition to the above components, other components that are usually used as cosmetic raw materials can be added to the hair treatment agent of the present invention. Such optional components include hydrocarbons, animal and vegetable fats and oils, higher fatty acids, natural or synthetic polymers, ethers, protein derivatives, hydrolyzed proteins, amino acids, preservatives, chelating agents, stabilizers, oxidation Examples include inhibitors, botanical extracts, herbal extracts, vitamins, fragrances, and UV absorbers.

  The dosage form of the hair treatment agent of the present invention can be, for example, liquid, emulsion, cream, gel, paste, mousse, etc., and can also be aerosol. The form of the hair treatment agent of the present invention can be, for example, hair nail polish, color shampoo, color rinse or the like.

  The hair treatment agent of the present invention may be applied in the form of a hair rinse type dyeing agent that can be used by rinsing after applying directly to hair etc. with bare hands without leaving gloves and leaving it for a short time of 30 to 120 seconds. However, it is preferable to apply it to a keratinous fiber such as hair using gloves or the like, leave it for a certain period of time, and then wash it off for use as a normal dyeing agent. When it is used as a hair rinse type dyeing agent like the former, although it depends on the hair quality and the method of use, a hair coloring effect such as gray hair becoming inconspicuous is usually obtained after about 5 to 10 uses. In the case of preparing a hair treatment agent containing a cationic polymer and silicones, after rinsing, washing the hair with a shampoo containing an anionic surfactant and then washing with water, the cationic polymer flows out appropriately, and the silicone Kind remains on the hair moderately and a good conditioning effect is obtained. As the shampoo to be used, a general aqueous shampoo containing about 5 to 20% by mass of an anionic surfactant such as sodium lauryl sulfate, sodium laureth-1 sulfate, sodium laureth-2 sulfate, sodium laureth-3 sulfate is suitable. .

Examples 1-4 and Comparative Examples 1-3
A hair manicure having the composition shown in Table 3 was prepared by a conventional method. About the obtained hair manicure, the following methods evaluated "the effect which makes a bounce and waviness of a hair tip straight", and "dyeability". The results are also shown in Table 3.

"Effects of straightening hair swells and undulations"
A hair manicure consisting of the composition shown in Table 3 was applied to a hair bundle of length 20 cm, width 1.5 cm, and weight 1.0 g, which was prepared using damaged hair that had been bleached 8 times and washed and dried 720 times in advance. And a bath ratio (agent: hair) = 1: 1. After standing at 25 ° C for 30 minutes, rinse with about 40 ° C water, wash with shampoo with the composition shown in Table 1, rinse with water with the composition shown in Table 2, rinse with water, and towel Wiped and dried. Thereafter, the extent of hair tip swell and undulation was evaluated visually according to the following evaluation criteria, and the effect of making the hair tip swell and swell straight. The evaluation was performed by five panelists according to the following evaluation criteria, and Table 3 shows the total value of the evaluation.
・ Evaluation criteria 4: Swelling is removed 3: Slightly swelling is taken 2: Not much swelling is taken 1: Swelling is not taken

"Dyeing"
Apply hair nail polish with the composition shown in Table 3 to a hair bundle made of goat hair at a bath ratio (agent: hair) = 1: 1, leave at 25 ° C. for 30 minutes, and then rinse with water at about 40 ° C. They were washed with a shampoo having the composition shown in Table 1, washed with water, rinsed with the composition shown in Table 2, rinsed with water, wiped with a towel and dried.
The color of the hair bundle obtained by such treatment was measured with a CIE color system (L *, a *, b *) using a color difference meter (color difference meter CR-400 manufactured by Konica Minolta Sensing). ΔE * was calculated by the following equation. The larger ΔE *, the better the dyeability. Table 3 shows the value of ΔE *.

  As shown in Table 3, the hair manicure of the present invention using octyldimethylbenzylammonium chloride is capable of restoring the hair ends that have bounced and wavy without reducing the dyeability to the original straight state. It was. In addition, the hair nail polish of the present invention can be uniformly dyed from the root to the hair tip while suppressing the deterioration of hair feel.

Examples 5-16
Color shampoos having the compositions shown in Tables 4 and 5 and color rinses having the compositions shown in Tables 6 and 7 were prepared by a conventional method, and the same method as for the hair manicure of Examples 1 to 4, was used. As a result of evaluating the effects of straightening and swelling of the hair and the “dyeability”, the hair treatment agents of Examples 5 to 16 also had their hair ends that were bounced or undulated without reducing the dyeability. It could be restored to a straight state. In addition, the hair nail polish of the present invention can be uniformly dyed from the root to the hair tip while suppressing the deterioration of hair feel.

Claims (3)

A hair treatment agent comprising components (a) and (b).
(a) The ratio of the hydrocarbon group represented by the general formula (1) and having 10 or less carbon atoms in the total hydrocarbon group R ¹ is 30 to 100% in terms of the chemical formula of R ¹ , and the balance is 11 or more carbon atoms Quaternary ammonium salt which is a hydrocarbon group of

Wherein, R ¹ represents a hydrocarbon group having 6 to 18 carbon atoms, R ² and R ³ represents an alkyl group having 1 to 3 carbon atoms which may be the same or different, n represents integer of 0 to 2 And X ⁻ represents an anion. ]
(b) Direct dye   The hair treatment agent according to claim 1, wherein the content of component (a) is 0.05 to 5% by mass in the total amount of the hair treatment agent.   The hair treatment agent according to claim 1 or 2, wherein the direct dye is an acid dye.