JP2024090205A - Hair dye composition - Google Patents

Abstract

To provide a technique that can improve the feel of dyed hair when washing it, using a configuration different from the conventional one.
[Solution] The hair dye composition contains the following components (A) to (D): (A) an amino-modified silicone, (B) a cationic polymer, (C) an oxidizing agent, and (D) an alkaline agent, wherein the charge density of the component (B) is less than 4 meq/g, and the total amount of the component (B) is 0.005% by mass or more and 1% by mass or less.
[Selection diagram] None

Description

The technology disclosed in this specification relates to a hair dye composition.

Hair dye compositions used for hair coloring, etc., use an alkaline agent and an oxidizing agent on the hair, which opens the hair cuticle and breaks down melanin. This is known to cause damage to the hair. In particular, the cuticle on the surface of the hair can peel off, making the hair feel rough when washed or finished.

Patent Document 1 discloses a hair treatment composition that uses an amino-modified silicone, a highly polymerized silicone, and a cationic polymer in combination to improve the feel of hair when washed after treatment.

JP 2004-175748 A

This specification provides a technology that uses a different configuration from conventional techniques to improve the feel of dyed hair when washing it.

As a result of intensive research, the present inventors have found that by adjusting the composition and content of the cationic polymer contained in the hair dye composition, it is possible to improve the feel of hair during washing. Based on this finding, the present specification provides the following means.

In a first aspect disclosed in the present specification, the hair dye composition comprises the following components (A) to (D): (A) amino-modified silicone, (B) cationic polymer, (C) oxidizing agent, and (D) alkaline agent, and the charge density of the (B) component is less than 4 meq/g, and the total amount of the (B) component may be 0.005% by mass or more and 1% by mass or less.

In the second aspect disclosed in this specification, in the first aspect, the total amount of the (A) component may be 0.1% by mass or more and 2.5% by mass or less.

In a third aspect disclosed in this specification, in the first or second aspect, the viscosity of the (A) component may be 700 mPa·s or more and 4000 mPa·s or less.

In a fourth aspect disclosed in the present specification, in any one of the first to third aspects, the amino equivalent of the (A) component may be 1400 g/mol or more and 5000 g/mol or less.

In a fifth aspect disclosed in the present specification, in any one of the first to fourth aspects, the hair dye composition is composed of at least a first agent and a second agent, the first agent contains the component (A) and the component (D), the second agent contains the component (C), and the mixing ratio of the first agent to the second agent may be within a range of 1:2 to 1:4. In addition, in the fifth aspect, the component (B) may be contained in either or both of the first agent and the second agent.

Hereinafter, one embodiment of the hair dye composition disclosed in this specification (hereinafter, referred to as the present composition) will be described. The present composition contains (A) amino-modified silicone, (B) cationic polymer, (C) oxidizing agent, and (D) alkaline agent. Generally, hair dyes are classified into temporary hair dyes, semi-permanent hair dyes, and permanent hair dyes based on the durability of the hair dyeing effect, i.e., fastness. The present composition may be used as any of the hair dyes, and can be used, for example, as an oxidative hair dye containing an oxidative dye (i.e., an example of a permanent hair dye), a color treatment containing a direct dye (i.e., an example of a semi-permanent hair dye), etc.

The composition may also be used as a multi-component hair dye. For example, the composition may be composed of the first and second components of a two-component hair dye. The composition may also be used as a three-component hair dye by further combining a granulated material such as a persulfate as a third component.

Each component contained in this composition is described in detail below. The content of each component is the content of the hair dye composition when multiple components are mixed, unless otherwise specified. For example, in the case of a two-component hair dye, the content is the content relative to the total amount of the mixture of the first and second components immediately before use.

[Component (A): Amino-modified silicone]
The first agent of the composition may contain an amino-modified silicone as component (A). However, the first agent may not contain component (A). The amino-modified silicone has a polysiloxane chain skeleton having an amino group or an ammonium group, and may have an alkyl group at the side chain or end. Examples of amino-modified silicone include aminopropylmethylsiloxane-dimethylsiloxane copolymer (INCI name: aminopropyldimethicone), aminoethylaminopropylsiloxane-dimethylsiloxane copolymer (INCI name: amodimethicone), aminoethylaminopropylmethylsiloxane-dimethylsiloxane copolymer (INCI name: trimethylsilylamodimethicone), etc. These substances contribute to uniform bleaching and dyeing of hair. The substance has good residual properties on hair, and gives hair the effects of softness and smoothness when wet, as well as the persistence of these effects. The substance provides hair with the benefits of vividness of color when dry, depth of color, shine, softness, smoothness, volume, manageability and moisture retention, as well as the durability of these benefits.

The content of the amino-modified silicone is not particularly limited, but may be, for example, 0.1% by mass or more, for example, 0.2% by mass or more, or for example, 0.3% by mass or more, based on the total amount of the composition. The content may be, for example, 2.5% by mass or less, for example, 2% by mass or less, for example, 1.6% by mass or less, or for example, 1.2% by mass or less, based on the total amount of the composition. The content may be, for example, 0.1% by mass or more and 2.5% by mass or less, for example, 0.2% by mass or more and 2% by mass or less, or for example, 0.3% by mass or more and 1.6% by mass or less, based on the total amount of the composition. By setting the content to 0.1% by mass or more and 2.5% by mass or less, the treatment effect, particularly the manageability of hair, can be improved.

When the amino-modified silicone is contained in the first agent, the content of the amino-modified silicone is not particularly limited, but may be, for example, 0.3% by mass or more, for example, 0.5% by mass or more, for example, 1% by mass or more, or for example, 2% by mass or more, relative to the total amount of the first agent. The content may be, for example, 10% by mass or less, for example, 6% by mass or less, or for example, 3% by mass or less, relative to the total amount. The content may be, for example, 0.3% by mass or more and 10% by mass or less, for example, 0.5% by mass or more and 6% by mass or less, or for example, 1% by mass or more and 3% by mass or less, relative to the total amount of the first agent. The content may be appropriately adjusted according to the mixing ratio of the first agent and the second agent.

The viscosity of the amino-modified silicone is not particularly limited, but may be, for example, 700 mPa·s or more, for example, 900 mPa·s or more, for example, 1000 mPa·s or more, or for example, 1500 mPa·s or more at 25°C. The viscosity may be, for example, 4000 mPa·s or less, for example, 3000 mPa·s or less, or for example, 2000 mPa·s or less at 25°C. The viscosity may be, for example, 700 mPa·s or more and 4000 mPa·s or less, for example, 1000 mPa·s or more and 3000 mPa·s or less, or for example, 1500 mPa·s or more and 2000 mPa·s or less at 25°C. If the viscosity is below 700 mPa·s, the composition may be prone to dripping when applied to hair, but if the viscosity is 700 mPa·s or higher, dripping is unlikely to occur. Also, if the viscosity is 700 mPa·s or higher, the composition will remain on hair better, and the above-mentioned effects can be preferably obtained. If the viscosity is more than 4000 mPa·s, the solubility in the composition may decrease, but if the viscosity is 4000 mPa·s or lower, good solubility can be achieved.

The amino equivalent of the amino-modified silicone is not particularly limited, but may be, for example, 1400 g/mol or more, for example, 1700 g/mol or more, or for example, 2000 g/mol or more. The amino equivalent may be, for example, 5000 g/mol or less, for example, 4000 g/mol or less, or for example, 3000 g/mol or less. The amino equivalent may be, for example, 1400 g/mol or more and 5000 g/mol or less, for example, 1700 g/mol or more and 4000 g/mol or less, or for example, 2000 g/mol or more and 3000 g/mol or less. If the amino equivalent is less than 1400 g/mol, it is difficult to obtain the effect of repairing damage to hair treated with this composition, but if the amino equivalent is 1400 g/mol or more, the effect is easily exhibited. Furthermore, if the amino equivalent exceeds 5000 g/mol, the hair may become sticky after treatment with the composition, but if the amino equivalent is 5000 g/mol or less, the hair may have a good feel when washed. Furthermore, if the amino equivalent is 5000 g/mol or less, the composition may be easily prepared. The amino equivalent can be determined by dividing the weight average molecular weight of the amino-modified silicone by the number of nitrogen atoms contained in the amino-modified silicone. The number of nitrogen atoms can be determined by elemental analysis.

[Component (B): Cationic polymer]
The composition may contain a cationic polymer as component (B) in either or both of the first and second agents. The cationic polymer contributes to uniform bleaching and dyeing of hair. The cationic polymer contributes to ease of rinsing of the agent. The cationic polymer has good residual properties on hair, and gives the effects of softness, smoothness, and ease of finger-passing when wet to hair, as well as the persistence of these effects. The cationic polymer gives the effects of vivid color, depth of color, luster, softness, smoothness, volume, ease of management, and moisturizing properties when dried, as well as the persistence of these effects. In particular, the cationic polymer imparts softness, smoothness, ease of finger-passing, and ease of rinsing of the agent when shampooing.

The cationic polymer may be either natural or synthetic. The cationic polymer is a polymer having a cationic group or a group that can be ionized to a cationic group, and includes an amphoteric polymer that is cationic as a whole. The cationic polymer may be an aqueous solution containing an amino group or an ammonium group on the side of the polymer chain, or containing a diallyl quaternary ammonium salt as a constituent unit. Examples of cationic polymers include cationic cellulose derivatives such as O-[2-hydroxy-3-(trimethylammonio)propyl] hydroxyethyl cellulose chloride, cationic starch, cationic guar gum derivatives such as O-[2-hydroxy-3-(trimethylammonio)propyl] guar gum chloride, polymers or copolymers of diallyl quaternary ammonium salts, and quaternized polyvinylpyrrolidone derivatives. The present composition may contain only one of these, or a combination of two or more of them. From the viewpoint of the above-mentioned effects and the stability of the agent, the cationic polymer is preferably O-[2-hydroxy-3-(trimethylammonio)propyl]hydroxyethylcellulose chloride or O-[2-hydroxy-3-(trimethylammonio)propyl]guar gum chloride.

The content of the cationic polymer is not particularly limited, but may be, for example, 0.005% by mass or more, for example, 0.01% by mass or more, for example, 0.03% by mass or more, or for example, 0.05% by mass or more, based on the total amount of the composition. The content may be, for example, 1% by mass or less, for example, 0.8% by mass or less, or for example, 0.5% by mass or less, based on the total amount of the composition. The content may be, for example, 0.005% by mass or more and 1% by mass or less, for example, 0.01% by mass or more and 0.8% by mass or less, or for example, 0.05% by mass or more and 0.5% by mass or less, based on the total amount of the composition. If the content is less than 0.005% by mass, it is difficult to obtain the effect of repairing damage to hair treated with the composition, but if the content is 0.005% by mass or more, the effect is easily exhibited. Furthermore, if the content exceeds 1% by mass, the hair may become sticky after treatment with this composition, but if the content is 1% by mass or less, it can provide a good feel when washed.

When the cationic polymer is contained in the first agent, the content of the cationic polymer is not particularly limited, but may be, for example, 0.05% by mass or more, for example, 0.1% by mass or more, for example, 0.2% by mass or more, or for example, 0.5% by mass or more, relative to the total amount of the first agent. The content may be, for example, 3% by mass or less, for example, 2.5% by mass or less, or for example, 2% by mass or less, relative to the total amount of the first agent. The content may be, for example, 0.05% by mass or more and 3% by mass or less, for example, 0.1% by mass or more and 2.5% by mass or less, or for example, 0.5% by mass or more and 2% by mass or less, relative to the total amount of the first agent. The content may be appropriately adjusted according to the mixing ratio of the first agent and the second agent.

The charge density of the cationic polymer is not particularly limited, but may be, for example, less than 4 meq/g, for example, less than 3 meq/g, for example, less than 2 meq/g, or for example, less than 1.5 meq/g. By making the charge density less than 4 meq/g, it is possible to improve the smoothness and softness of hair when washing it. In this specification, the charge density is the number of moles of cationic groups contained per 1 g of cationic polymer × 1000 (meq/g). When the cationic polymer has anionic groups, the charge density is the above value minus the number of moles of anionic groups × 1000.

[Component (C): Oxidizing Agent]
The composition may contain an oxidizing agent as component (C) in the second agent. However, the second agent may not contain component (C). The oxidizing agent improves the decolorization of melanin contained in hair. Examples of the oxidizing agent include hydrogen peroxide, urea peroxide, melamine peroxide, sodium percarbonate, sodium perborate, potassium perborate, sodium peroxide, potassium peroxide, magnesium peroxide, barium peroxide, calcium peroxide, strontium peroxide, sodium persulfate, potassium persulfate, ammonium persulfate, hydrogen peroxide adduct of sulfate, hydrogen peroxide adduct of phosphate, hydrogen peroxide adduct of pyrophosphate, etc. The oxidizing agent may contain only one of these, or a combination of two or more.

The content of the oxidizing agent is not particularly limited, but is, for example, 0.7 mass% or more, for example, 0.75 mass% or more, or for example, 0.8 mass% or more, relative to the total amount of the composition. The content is, for example, 5.0 mass% or less, for example, 4.9 mass% or less, or for example, 4.8 mass% or less, relative to the total amount.

When an oxidizing agent is contained in the second agent, the content of the oxidizing agent is not particularly limited, but is, for example, 4% by mass or more, for example, 4.2% by mass or more, and for example, 4.5% by mass or more, relative to the total amount of the second agent. The content of the oxidizing agent in the second agent is, for example, 6% by mass or less, for example, 5.8% by mass or less, and for example, 5.5% by mass or less.

[Component (D): Alkaline Agent]
The composition may contain an alkaline agent as component (D) in the first agent. However, the first agent may not contain component (D). The alkaline agent promotes the action of the oxidizing agent and contributes to improving the bleaching effect and/or decoloring effect of hair. Examples of the alkaline agent include ammonia, alkanolamines, silicates, carbonates, hydrogencarbonates, metasilicates, sulfates, chlorides, phosphates, organic amines, basic amino acids, hydroxides of alkali metals or alkaline earth metals, and the like. Specific examples of alkanolamines include monoethanolamine, triethanolamine, and the like. Specific examples of silicates include sodium silicate, potassium silicate, and the like. Specific examples of carbonates include sodium carbonate, ammonium carbonate, and the like. Specific examples of hydrogencarbonates include sodium hydrogencarbonate, ammonium hydrogencarbonate, and the like. Specific examples of metasilicates include sodium metasilicate, potassium metasilicate, and the like. Specific examples of sulfates include ammonium sulfate, and the like. Specific examples of chlorides include ammonium chloride, and the like. Specific examples of phosphates include ammonium dihydrogen phosphate, diammonium hydrogen phosphate, sodium dihydrogen phosphate, disodium hydrogen phosphate, and trisodium phosphate. Specific examples of organic amines include 2-amino-2-methyl-1-propanol (AMP), 2-amino-2-methyl-1,3-propanediol, guanidine, and 1-amino-2-propanol (MIPA). Specific examples of basic amino acids include arginine and lysine. Specific examples of hydroxides of alkali metals or alkaline earth metals include sodium hydroxide and potassium hydroxide. The alkaline agent may contain only one of these, or may contain a combination of two or more of them. Among these, ammonia, monoethanolamine, or ammonium salts are preferably used from the viewpoint of excellent effect of improving the brightness of hair.

The content of the alkaline agent is not particularly limited, but may be, for example, in an amount that results in a pH range of 7 to 12 in the mixture of the first and second agents, or may be, for example, in an amount that results in a pH range of 9 to 12. By making the pH of the mixture 7 or higher, the action of the oxidizing agent contained in the second agent can be promoted. Furthermore, by making the pH of the mixture 12 or lower, damage to hair caused by application of the composition can be suppressed. The pH is measured at 25°C when the above mixture is dissolved in water at a concentration of 10% by mass.

[Other ingredients]
In addition to the above-mentioned components, the present composition may contain the following components as necessary: Examples of other components include oxidative dyes, direct dyes, solubilizers, inorganic polymers, oily components other than those mentioned above, polyhydric alcohols, surfactants, pH adjusters, sugars, preservatives, stabilizers, animal, plant or microbial extracts, herbal extracts, vitamins, fragrances, antioxidants, chelating agents, ultraviolet absorbers, cooling agents, etc.

Oxidation dyes are dyes that develop color through oxidative polymerization in the presence of an oxidizing agent. Oxidation dyes include dye intermediates that develop color through their own oxidation, and couplers that can be combined with dye intermediates to produce a variety of colors.

Dye intermediates include dye precursors, which are mainly o- or p-phenylenediamines or aminophenols, and are usually colorless or weakly colored compounds themselves. Specific examples include p-phenylenediamine, toluene-2,5-diamine (p-toluylenediamine), N-phenyl-p-phenylenediamine, 4,4'-diaminodiphenylamine, p-aminophenol, o-aminophenol, p-methylaminophenol, N,N-bis(2-hydroxyethyl)-p-phenylenediamine, 2-hydroxyethyl-p-phenylenediamine, o-chloro-p-phenylenediamine, 4-amino-m-cresol, 2-amino-4-hydroxyethylaminoanisole, 2,4-diaminophenol, and salts thereof.

Couplers include mainly m-diamines, aminophenols, or diphenols. Specific examples include resorcin, catechol, pyrogallol, phloroglucin, gallic acid, hydroquinone, 5-amino-o-cresol, m-aminophenol, 5-(2-hydroxyethylamino)-2-methylphenol, m-phenylenediamine, 2,4-diaminophenoxyethanol, toluene-3,4-diamine, α-naphthol, 2,6-diaminopyridine, diphenylamine, 3,3'-iminodiphenyl, 1,5-dihydroxynaphthalene, and tannic acid and their salts.

These oxidation dyes may be used alone or in combination of two or more types depending on the desired color tone. The content of the oxidation dye in the composition is not particularly limited and may be appropriately determined depending on the color tone and shade of the desired hair color.

Direct dyes are compounds that have color, and are not particularly limited as long as they adhere to or penetrate hair to dye it. Examples include acid dyes, basic dyes, natural dyes, nitro dyes, HC dyes, and disperse dyes. These direct dyes may contain only one type or a combination of two or more types depending on the desired hair color tone.

Examples of acid dyes include Red No. 2, Red No. 3, Red No. 102, Red No. 104 (1), Red No. 105 (1), Red No. 106, Red No. 201, Red No. 227, Red No. 230 (1), Red No. 230 (2), Red No. 231, Red No. 232, Red No. 401, Red No. 502, Red No. 503, Red No. 504, Red No. 506, Yellow No. 4, Yellow No. 5, Yellow No. 202 (1), Yellow No. 202 (2), Yellow No. 203, Yellow No. 402, Yellow No. 403 (1), Yellow No. 406, Yellow No. 407, Orange No. 205, Orange No. 20 Examples include No. 7, Orange No. 402, Green No. 3, Green No. 204, Green No. 205, Green No. 401, Green No. 402, Purple No. 401, Blue No. 1, Blue No. 2, Blue No. 202, Blue No. 203, Blue No. 205, Brown No. 201, Black No. 401, Acid Blue 1, Acid Blue 3, Acid Blue 62, Acid Black 52, Acid Brown 13, Acid Green 50, Acid Orange 6, Acid Red 14, Acid Red 35, Acid Red 73, Acid Red 184, and Brilliant Black 1.

Examples of basic dyes (cationic dyes) include Red No. 213, Red No. 214, Basic Blue 3, Basic Blue 6, Basic Blue 7, Basic Blue 9, Basic Blue 26, Basic Blue 41, Basic Blue 75, Basic Blue 99, Basic Brown 4, Basic Brown 16, Basic Brown 17, Basic Brown 1, Basic Brown 4, Basic Brown 16, Basic Orange 1, Basic Orange 2, Basic Red 1, Basic Red 2, Basic Red 22, Basic Red 46, Basic Red 51, Basic Red 76, Basic Red 118, Basic Violet 1, Basic Violet 2, Basic Violet 3, Basic Violet 4, Basic Violet 10, Basic Violet 11:1, Basic Violet 14, Basic Violet 16, Basic Yellow 11, Basic Yellow 28, and Basic Yellow 57.

Examples of natural dyes include gardenia dye, turmeric dye, annatto dye, sodium copper chlorophyllin, paprika dye, lac dye, and henna.

Examples of nitro dyes include 4-nitro-o-phenylenediamine, 2-nitro-p-phenylenediamine, 2-amino-4-nitrophenol, 2-amino-5-nitrophenol, picramic acid, picric acid, and their salts, HC Blue No.2, HC Blue No.4, HC Blue No.5, HC Blue No.6, HC Blue No.8, HC Blue No.9, HC Blue No.10, HC Blue No.11, HC Blue No.12, HC Blue No.13, HC Blue No.14, HC Brown No.1, HC Brown No.2, HC Green No.1, HC Orange No.1, HC Orange No.2, HC Orange No.3, HC Orange No.5, HC Red No.1, HC Red No.3, HC Red No.7, HC Red No.8, HC Red No.9, HC Red No.10, HC Red No.11, HC Red No.13, HC Red No.14, HC Violet No.1, HC Violet No.2, HC Yellow No.4, HC Yellow No.5, HC Yellow No.6, HC Yellow No.7, HC Yellow No.8, HC Yellow No.9, HC Yellow No.10, HC Yellow No.11, HC Yellow No.12, HC Yellow No.13, HC Yellow No.14, HC Yellow No.15, etc.

Examples of HC dyes include HC Blue No.2, HC Blue No.5, HC Blue No.6, HC Blue No.9, HC Blue No.10, HC Blue No.11, HC Blue No.12, HC Blue No.13, HC Blue No.16, HC Orange No.1, HC Orange No.2, HC Orange No.3, HC Red No.1, HC Red No.3, HC Red No.7, HC Red No.10, HC Red No.11, HC Red No.13, HC Red No.14, HC Violet No.1, HC Violet No.2, HC Yellow No.2, HC Yellow No.4, HC Yellow No.5, HC Yellow No.6, HC Yellow No.9, HC Yellow No.10, HC Yellow No.11, HC Yellow No.12, HC Yellow No.13, HC Yellow No.14, and HC Yellow No.15.

Examples of disperse dyes include Disperse Black 9, Disperse Blue 1, Disperse Blue 3, Disperse Blue 7, Disperse Brown 4, Disperse Orange 3, Disperse Red 11, Disperse Red 15, Disperse Red 17, Disperse Violet 1, Disperse Violet 4, and Disperse Violet 15.

The amount of the direct dye contained in the composition is not particularly limited and may be determined appropriately depending on the tone and shade of the desired hair dye color.

The solubilizer is added, for example, when the present composition is made into a liquid. Examples of the solubilizer used include water and organic solvents (i.e., solvents). Specific examples of organic solvents include ethanol, n-propanol, isopropanol, methyl cellosolve, ethyl cellosolve, methyl carbitol, ethyl carbitol, benzyl alcohol, phenethyl alcohol, γ-phenylpropyl alcohol, cinnamic alcohol, anise alcohol, p-methylbenzyl alcohol, α-dimethylphenethyl alcohol, α-phenylethanol, phenoxyisopropanol, 2-benzyloxyethanol, N-alkylpyrrolidone, alkylene carbonate, alkyl ether, and the like. The solubilizer may contain only one of these, or may contain a combination of two or more. Among these, water is preferably used because of its excellent ability to dissolve other components in the present composition. When water is used as a solvent, the content of water in the present composition (for example, the content at the time of use) is, for example, 40% by mass or more, and, for example, 50% by mass or more.

Examples of inorganic polymers include bentonite, aluminum magnesium silicate, laponite, hectorite, and silicic anhydride. The inorganic polymer may contain only one of these, or may contain a combination of two or more of them.

Oily components other than those mentioned above impart a moisturizing feel to hair. Therefore, the present composition may contain oily components within a range that does not impair the effects of the present invention. Examples of oily components include fats and oils, waxes, hydrocarbons, ester oils, higher alcohols, higher fatty acids, alkyl glyceryl ethers, silicones other than those mentioned above, etc.

Examples of fats and oils include Argania spinosa kernel oil, olive oil, camellia oil, shea butter, almond oil, safflower oil, sunflower oil, soybean oil, cottonseed oil, sesame oil, corn oil, rapeseed oil, rice bran oil, rice germ oil, grape seed oil, avocado oil, macadamia nut oil, castor oil, coconut oil, evening primrose oil, apricot kernel oil, persic oil, peach kernel oil, palm oil, egg yolk oil, etc. Specific examples of waxes include lanolin, beeswax, candelilla wax, carnauba wax, jojoba oil, etc.

Examples of hydrocarbons include paraffin, olefin oligomer, polyisobutene, hydrogenated polyisobutene, mineral oil, squalane, polybutene, polyethylene, microcrystalline wax, petrolatum, liquid paraffin, light isoparaffin, light liquid isoparaffin, isoparaffin, α-olefin oligomer, synthetic squalane, etc.

Examples of ester oils include diisopropyl adipate, isopropyl myristate, cetyl octanoate, isononyl isononanoate, octyldodecyl myristate, isopropyl palmitate, stearyl stearate, myristyl myristate, isotridecyl myristate, 2-ethylhexyl palmitate, octyldodecyl ricinoleate, cholesteryl/lanosteryl fatty acids having 10 to 30 carbon atoms, cetyl lactate, lanolin acetate, ethylene glycol di-2-ethylhexanoate, pentaerythritol fatty acid esters, dipentaerythritol fatty acid esters, cetyl caprate, glyceryl tricaprylate, diisostearyl malate, dioctyl succinate, and cetyl 2-ethylhexanoate.

Examples of higher alcohols include cetyl alcohol (cetanol), 2-hexyldecanol, stearyl alcohol, isostearyl alcohol, cetostearyl alcohol (cetearyl alcohol), oleyl alcohol, arachyl alcohol, behenyl alcohol, 2-octyldodecanol, lauryl alcohol, myristyl alcohol, decyltetradecanol, lanolin alcohol, etc.

Examples of higher fatty acids include lauric acid, myristic acid, palmitic acid, stearic acid, behenic acid, isostearic acid, 12-hydroxystearic acid, oleic acid, lanolin fatty acid, etc. Specific examples of alkyl glyceryl ethers include batyl alcohol, chimyl alcohol, selachyl alcohol, isostearyl glyceryl ether, etc.

Specific examples of silicones other than those mentioned above include dimethylpolysiloxane (dimethicone), methylphenylpolysiloxane, decamethylcyclopentasiloxane, dodecamethylcyclohexasiloxane, hydroxyl-terminated dimethylpolysiloxane (dimethiconol), polyether-modified silicone (e.g., (PEG/PPG/butylene/dimethicone) copolymer), betaine-modified silicone, alkyl-modified silicone, alkoxy-modified silicone, mercapto-modified silicone, carboxy-modified silicone, and fluorine-modified silicone. The silicone may contain only one of these, or may contain a combination of two or more. When the silicone is contained in the composition, it is preferable that the silicone has a low polymerization degree (e.g., a polymerization degree of less than 650). This is because highly polymerized silicones are prone to excessive conditioning such as stickiness, and may also deteriorate production cleaning properties, costs, and stability.

Examples of polyhydric alcohols include glycol and glycerin. Examples of glycols include ethylene glycol, diethylene glycol, triethylene glycol, polyethylene glycol, highly polymerized polyethylene glycol, propylene glycol, dipropylene glycol, polypropylene glycol, isoprene glycol, and 1,3-butylene glycol. Examples of glycerin include glycerin, diglycerin, and polyglycerin. The polyhydric alcohol may contain only one of these, or a combination of two or more of them.

The surfactant acts as an emulsifier or a component for solubilizing each component, emulsifying or solubilizing the composition when it is used. The surfactant adjusts the viscosity or improves the viscosity stability. Examples of surfactants include anionic surfactants, cationic surfactants, amphoteric surfactants, and nonionic surfactants.

Examples of anionic surfactants include alkyl ether sulfates, alkyl sulfates, alkyl ether sulfate ester salts, alkenyl ether sulfates, alkenyl sulfates, olefin sulfonates, alkanesulfonates, saturated or unsaturated fatty acid salts, alkyl or alkenyl ether carboxylates, α-sulfonic acid salts, N-acylamino acid surfactants, mono- or diester phosphate surfactants, sulfosuccinates, N-alkyloylmethyl taurine salts, and derivatives thereof. Specific examples of the counter ions of the anionic groups of these surfactants include sodium ions, potassium ions, triethanolamine, and the like. More specifically, examples of alkyl ether sulfate ester salts include sodium POE lauryl ether sulfate. Specific examples of alkyl sulfate salts include sodium lauryl sulfate and sodium cetyl sulfate. Specific examples of derivatives of alkyl sulfate salts include sodium POE lauryl sulfate. Specific examples of sulfosuccinate salts include disodium lauryl sulfosuccinate. A specific example of an N-alkyloylmethyltaurine salt is sodium N-stearoyl-N-methyltaurine.

Examples of cationic surfactants include lauryl trimethyl ammonium chloride, cetyl trimethyl ammonium chloride, stearyl trimethyl ammonium chloride, behenyl trimethyl ammonium chloride (behen trimonium chloride), behenyl PG trimonium chloride, stearoxypropyl trimonium chloride, arachidyl trimethyl ammonium chloride, alkyl trimethyl ammonium chloride, distearyl dimethyl ammonium chloride, cetyl trimethyl ammonium bromide, stearyl trimethyl ammonium bromide, lanolin fatty acid aminopropyl ethyl dimethyl ammonium ethyl sulfate, stearyl trimethyl ammonium saccharin, cetyl trimethyl ammonium saccharin, methacryloyloxyethyl trimethyl ammonium chloride, behenyl trimethyl ammonium methyl sulfate, behenyl dimethylamine, behenic acid diethylaminoethyl amide, behenic acid dimethylaminopropyl amide, behenic acid dimethylaminoethyl amide, stearyl dimethylamine, palmitoxypropyl dimethylamine, stearoxypropyl dimethylamine, stearate dimethylaminopropyl amide, etc.

Examples of amphoteric surfactants include cocobetaine, lauramidopropyl betaine, cocamidopropyl betaine, sodium lauroamphoacetate, sodium cocoamphoacetate, coconut oil fatty acid amidopropyl betaine, lauryl betaine (lauryl dimethylaminoacetate betaine), sodium lauryl aminopropionate, etc.

Examples of nonionic surfactants include ether-type nonionic surfactants, ester-type nonionic surfactants, alkyl glucosides, etc. Specific examples of ether-type nonionic surfactants include POE cetyl ether (ceteth), POE stearyl ether (steareth), POE behenyl ether (beheneth), POE oleyl ether (oleth), POE lauryl ether (laureth), POE octyldodecyl ether, POE hexyldecyl ether, POE isostearyl ether, POE nonylphenyl ether, POE octylphenyl ether, POE polyoxypropylene cetyl ether, POE polyoxypropylene decyltetradecyl ether, etc.

Examples of ester-type nonionic surfactants include POE sorbitan monooleate, POE sorbitan monostearate, POE sorbitan monopalmitate, POE sorbitan monolaurate, POE sorbitan trioleate, POE glycerin monostearate, POE glycerin monomyristate, POE sorbitol tetraoleate, POE sorbitol hexastearate, POE sorbitol monolaurate, POE sorbitol beeswax, polyethylene glycol monooleate, polyethylene glycol monostearate, Examples include polyethylene glycol monolaurate, lipophilic glycerin monooleate, lipophilic glycerin monostearate, self-emulsifying glycerin monostearate, sorbitan monooleate, sorbitan sesquioleate, sorbitan trioleate, sorbitan monostearate, sorbitan monopalmitate, sorbitan monolaurate, sucrose fatty acid esters, decaglyceryl monolaurate, decaglyceryl monostearate, decaglyceryl monooleate, decaglyceryl monomyristate, and POE reduced lanolin.

Examples of alkyl glucosides include alkyl (carbon number 8 to 16) glucoside, POE methyl glucoside, and POE dioleate methyl glucoside. The surfactant may contain only one of these, or a combination of two or more of them.

A pH adjuster may be added to adjust the pH of the composition. Examples of pH adjusters include inorganic acids, organic acids, and salts thereof. Specific examples of inorganic acids include phosphoric acid, hydrochloric acid, nitric acid, sulfuric acid, and boric acid. Specific examples of phosphoric acid include orthophosphoric acid, polyphosphoric acid, pyrophosphoric acid, and metaphosphoric acid. Specific examples of organic acids include citric acid, tartaric acid, lactic acid, malic acid, succinic acid, fumaric acid, maleic acid, pyrophosphoric acid, gluconic acid, glucuronic acid, and benzoic acid. Specific examples of salts include sodium salts, potassium salts, and ammonium salts.

Specific examples of sugars include monosaccharides such as glucose and galactose, disaccharides such as maltose, sucrose, fructose and trehalose, and sugar alcohols.

Specific examples of preservatives include paraben, methylparaben, sodium benzoate, paraoxybenzoic acid esters, ethylene glycol phenyl ether (phenoxyethanol), etc.

Specific examples of stabilizers include phenacetin, 8-hydroxyquinoline, acetanilide, sodium pyrophosphate, barbituric acid, uric acid, and tannic acid.

Specific examples of animal, plant or microbial extracts include Sapindus trifoliatus fruit extract, hydrolyzed yeast extract, etc.

Specific examples of antioxidants include ascorbic acid and sulfites.

Specific examples of chelating agents include edetic acid (ethylenediaminetetraacetic acid (EDTA)), disodium edetate, tetrasodium edetate, diethylenetriaminepentaacetic acid and its salts, ethylenediaminehydroxyethyltriacetic acid and its salts, and hydroxyethanediphosphonic acid (HEDP) and its salts.

Specific examples of cooling agents include 1-menthol, etc.

The formulation of the composition is not particularly limited, and examples of the formulation at 25°C include liquids such as aqueous solutions and emulsions, gels, foams, creams, etc. The composition can also be an aerosol or non-aerosol, and in the case of a non-aerosol, it can be in various forms such as a squeeze foamer type and a pump foamer type. In the case of an aerosol, a known propellant and foaming agent can be used. Specific examples of propellants or foaming agents include liquefied petroleum gas (LPG), dimethyl ether (DME), nitrogen gas, carbon dioxide gas, etc. In addition, from the viewpoint of improving storage stability, the composition can be stored separately as a solid component and a liquid component, and these components can be mixed immediately before use.

[Mixing ratio of first agent and second agent]
When the composition is composed of the first agent and the second agent, the mixing ratio of the first agent and the second agent during use is appropriately set in consideration of the concentration, mixability, etc. of each component in the mixture. The mixing ratio is, for example, in the range of 1:2 to 1:4 by mass, for example, in the range of 1:2 to 1:3, for example, in the range of 1:3 to 1:4. In the composition, the amino-modified silicone and the cationic polymer have a positively charged portion. It is considered that the positively charged portion binds to the hair surface negatively charged due to damage, thereby improving the feel during washing. Therefore, even if the ratio of the second agent containing an oxidizing agent that may cause hair damage in the mixture is relatively large, the above-mentioned effects of the amino-modified silicone and the cationic polymer can effectively reduce damage to the hair.

Next, a method of using the composition will be described. When the composition is composed of the first agent and the second agent, the first agent and the second agent are stored in separate containers until use. When using, the user puts the first agent and the second agent into the applicator and mixes them by shaking or the like. This causes the mixture to be adjusted in the applicator, and the adjusted mixture is stored in the container portion in the applicator.

The mixture contained in the applicator is then applied to the hair. The mixture contained in the applicator passes through a discharge passage provided in the discharge part and is discharged from a discharge port by performing a specific operation corresponding to the discharge part, such as pressing the container part. The mixture can be applied to the hair by a known method, such as a method of applying the discharged mixture to the hair by applying it to the hair by applying it to the hair with a thin-gloved hand, a comb, or a brush, or a method of discharging the mixture while combing the hair using a comb-shaped discharge part.

After the mixture has been applied to the hair, a step of rinsing the mixture applied to the hair with water after a predetermined time has elapsed is carried out according to a conventional method. Next, a step of washing the hair, preferably using a shampoo composition according to a conventional method, and rinsing with water is carried out. Next, a step of treating the hair, preferably using a treatment composition according to a conventional method, and rinsing with water is carried out. The treatment composition is not particularly limited as long as it is applicable for treating hair, and any known treatment composition can be applied. Next, a step of drying the hair, preferably using a conventional method, is carried out.

Next, the present composition will be described in detail with reference to examples and comparative examples. However, the present invention is not limited to these examples in any way.

First, the first and second agents of the oxidative hair dye were prepared as hair dye compositions containing the components shown in Tables 1 to 3. The numerical values in the columns showing each component in each table indicate the content of the component in that column in the agent, and the units are % by mass.

The notations in the table are explained below.
(A-1): Aminoethylaminopropylmethylsiloxane-dimethylsiloxane copolymer (viscosity 1000 mPa·s, amino equivalent 1700 g/mol)
(A-2): Aminoethylaminopropylmethylsiloxane-dimethylsiloxane copolymer (viscosity 3000 mPa·s, amino equivalent 1700 g/mol)
(A-3): Aminoethylaminopropylmethylsiloxane-dimethylsiloxane copolymer (viscosity 750 mPa·s, amino equivalent 1500 g/mol)
(A-4): Aminoethylaminopropylmethylsiloxane-dimethylsiloxane copolymer (viscosity 900 mPa·s, amino equivalent 1555 g/mol)
(A-5): Aminoethylaminopropylmethylsiloxane-dimethylsiloxane copolymer (viscosity 2000 mPa·s, amino equivalent 1273 g/mol)
(A-6): Aminoethylaminopropylmethylsiloxane-dimethylsiloxane copolymer (viscosity 1500 mPa·s, amino equivalent 3800 g/mol)
(A-7): Aminoethylaminopropylmethylsiloxane-dimethylsiloxane copolymer (viscosity 390 mPa·s, amino equivalent 5700 g/mol)
(A-8): Bis(hydroxy/methoxy)amodimethicone (viscosity 5720 mPa·s, amino equivalent 7000 g/mol)
(B-1): O-[2-hydroxy 3-(trimethylammonio)propyl]hydroxyethyl cellulose chloride (charge density 1.2 meq/g)
(B-2): O-[2-hydroxy-3-(trimethylammonio)propyl]guar gum chloride (charge density less than 2.0 meq/g)
(B-3): 40% by mass polydimethyldimethylenepyrrolidinium chloride solution (charge density 7.9 meq/g)
The viscosity of the amino-modified silicone was measured using a Brookfield viscometer (manufactured by Toki Sangyo Co., Ltd.) at 25° C. for 1 minute.

Then, the first and second agents were mixed in the mixing ratios shown in Tables 1 and 2 to prepare the oxidation hair dye of each example. The obtained oxidation hair dye was applied to a human hair bundle and left for 30 minutes at 30°C. Next, the oxidation hair dye attached to the hair bundle was washed with water, and then the hair bundle was shampooed once (Bigen Treatment Shampoo manufactured by Hoyu Co., Ltd. as a shampoo composition) and treated once (Bigen Treatment Rinse manufactured by Hoyu Co., Ltd. as a treatment composition). The shampoo composition and treatment composition were each rinsed off with water after each treatment. During the hair dyeing process, the feel of the hair bundle when rinsing the oxidation hair dye attached to the hair bundle with water, the feel of the hair bundle after rinsing off the shampoo, and the feel of the hair bundle after rinsing off the treatment were evaluated according to the method shown below.

(Feel when washing with water)
Ten panelists judged the feel of the hair bundle when the oxidative hair dye attached to the hair bundle was rinsed with water according to the following criteria. The feel of the hair bundle was scored on a five-point scale: excellent (5 points), good (4 points), fair (3 points), slightly poor (2 points), and poor (1 point). The average score of each panelist was calculated, and the average score of 4.6 points or more was evaluated as "excellent: 5", 3.6 points or more but less than 4.6 points was evaluated as "good: 4", 2.6 points or more but less than 3.6 points was evaluated as "fair: 3", 1.6 points or more but less than 2.6 points was evaluated as "slightly poor: 2", and less than 1.6 points was evaluated as "poor: 1". The results are shown in Tables 1 and 2.

(Feeling after rinsing shampoo)
After shampooing, ten panelists judged the feel of the hair bundle in a wet state according to the following criteria. The feel of the hair bundle was scored on a five-point scale: excellent (5 points), good (4 points), fair (3 points), slightly poor (2 points), and poor (1 point). The average score of each panelist was calculated, and the average score of 4.6 points or more was evaluated as "excellent: 5", 3.6 points or more but less than 4.6 points was evaluated as "good: 4", 2.6 points or more but less than 3.6 points was evaluated as "fair: 3", 1.6 points or more but less than 2.6 points was evaluated as "slightly poor: 2", and less than 1.6 points was evaluated as "poor: 1". The results are shown in Tables 1 and 2.

(Feeling after rinsing treatment)
After the treatment, ten panelists judged the feel of the hair bundle in a wet state according to the following criteria. The feel of the hair bundle was scored on a five-point scale: excellent (5 points), good (4 points), fair (3 points), slightly poor (2 points), and poor (1 point). The average score of each panelist was calculated, and the average score of 4.6 points or more was rated as "excellent: 5", 3.6 points or more but less than 4.6 points was rated as "good: 4", 2.6 points or more but less than 3.6 points was rated as "fair: 3", 1.6 points or more but less than 2.6 points was rated as "slightly poor: 2", and less than 1.6 points was rated as "poor: 1". The results are shown in Tables 1 and 2.

As shown in Tables 1 and 2, in the compositions containing components (A) to (D), the examples in which component (B) was present at 0.01% by mass or more and 1% by mass or less and the charge density of component (B) was less than 4 meq/g were confirmed to have good results in each evaluation item.

In Examples 9 to 11 shown in Table 1, the contribution of component (D) was examined. Example 11, which used carbonate, was rated slightly lower than Examples 9 and 10. This is thought to be because the carbonate further damaged the hair surface. However, Example 11 was rated "good" or "fair," and the feel was improved compared to the comparative example. This is because components (A) and (B) have positively charged moieties. It is thought that the positively charged moieties bond to the damaged hair surface, improving the feel during washing. Thus, it was found in Example 11 that favorable effects could be obtained even when carbonate was used as component (D).

In addition, in Examples 12 to 17 in Table 1, the content of component (A) was examined, and good results were obtained in all cases. Among these, as shown in Examples 15 to 17, the inclusion of a certain amount of component (A) resulted in an improved feel after rinsing out the shampoo and conditioner.

As shown in Table 2, Example 21, in which the viscosity of component (A) is less than 700 mPa·s and the amino equivalent exceeds 5000 g/mol, and Example 23, in which the viscosity of component (A) is more than 4000 mPa·s and the amino equivalent exceeds 5000 g/mol, were evaluated as being slightly inferior to Examples 18 to 20 and 22, in which the viscosity of component (A) is 700 mPa·s or more and 4000 mPa·s or less, or the amino equivalent is 1400 g/mol or more and 5000 g/mol or less. In other words, it was confirmed that the viscosity and amino equivalent of component (A) contributed to the improvement of the feel. However, the evaluations of Examples 21 and 23 were both "Fair", and the feel was improved compared to the comparative example.

As shown in Table 2, in Examples 24 to 27, in which the first and second agents having the same composition were used and only the mixing ratio of the first and second agents was changed, good results were obtained when the mixing ratio was 1:1 to 1:4 (Examples 24 to 26). This is believed to be because the components (A) and (B) contained in this composition have positively charged portions. The positively charged portions derived from the components (A) and (B) bind to the surface of hair that has been negatively charged due to damage, effectively improving the feel of the hair when washed. That is, even when the ratio of the second agent containing an oxidizing agent that can cause hair damage in the mixture is relatively high, the above-mentioned effects of the components (A) and (B) can effectively reduce damage to the hair, and therefore the feel of the hair is thought to have improved. Note that in Example 27 (mixing ratio 1:5), in which the ratio of the second agent containing an oxidizing agent is extremely high, the evaluation was slightly inferior to the other examples. However, all evaluations of Example 27 were "Fair," indicating that the feel was improved compared to the comparative example.

As shown in Table 2, it was confirmed that Comparative Example 1 (0.0075 mass%), in which the content of the (B) component is less than 0.01 mass%, had a significantly lower evaluation, especially after rinsing off the treatment, than the other Examples. This is because the content of the (B) component was so small that the effect of the (B) component was not sufficiently obtained. Comparative Example 2 (1.25 mass%), in which the content of the (B) component was more than 1 mass%, did not obtain good results, especially in the evaluations when rinsing with water and after rinsing off the shampoo. This is because the excessive content of the (B) component, which functions as a conditioning component, caused stickiness. Comparative Example 3, in which the charge density of the (B) component was 4 meq/g or more (7.9 meq/g), obtained an excellent evaluation when rinsing with water, but the evaluations after rinsing off the shampoo and treatment were lower than those of the other Examples. This is thought to be because a large amount of cationic polymer remained on the hair surface, making it difficult to obtain the cleaning effect of the shampoo composition and treatment composition.

The composition can be used as a hair dye composition for dyeing human body hair, such as head hair, beard, eyebrows, and leg hair. It may also be used to dye the body hair of animals, such as pets. The composition can also be used as a hair dye composition for use in beauty salons or barber shops, and as a hair dye composition for self-coloring.

This composition contains a specified amount of component (B) having specific properties in addition to component (A), and has the effect of improving the feel of dyed hair when washed.

Claims (5)

The following components (A) to (D)
(A) amino-modified silicone,
(B) a cationic polymer,
(C) an oxidizing agent, and
(D) an alkaline agent,
Including,
The charge density of the component (B) is less than 4 meq/g,
The total amount of the component (B) is 0.005% by mass or more and 1% by mass or less. The hair dye composition according to claim 1, wherein the total amount of the component (A) is 0.1% by mass or more and 2.5% by mass or less. The hair dye composition according to claim 1 or 2, wherein the viscosity of component (A) at 25°C is 700 mPa·s or more and 4000 mPa·s or less. The hair dye composition according to claim 1 or 2, wherein the amino equivalent of component (A) is 1400 g/mol or more and 5000 g/mol or less. The hair dye composition is composed of at least a first agent and a second agent,
The first agent contains the component (A) and the component (D),
The second agent contains the component (C),
The hair dye composition according to claim 1 or 2, wherein a mixing ratio of the first agent to the second agent is within a range of 1:2 to 1:4.