Hair dye composition

Abstract

To provide a hair dye composition that can inhibit unintentional dyeing of areas other than the hair while improving hair dyeing power.SOLUTION: The hair dye composition of the present invention comprises (A): a cationic direct dye, (B): a nonionic direct dye, (C): polyalkylene glycol, and (D): polyhydric alcohol (excluding (C) above), where (A) / (B)≤0.5. In the hair dye composition, (A) can be contained in the amount of 0.01 to 1.0 mass%, (B) can be 0.1 to 1.5 mass%, (C) can be 1.0 to 10 mass%, and (D) can be 1.0 to 10 mass%.SELECTED DRAWING: None

Description

Technical Field

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[0001] The present invention relates to a hair dye composition. More specifically, it relates to a hair dye composition that combines a cationic direct dye and a nonionic direct dye.

Background Art

[0002] Hair dye compositions are roughly classified into temporary hair dyes, semi-permanent hair dyes, and permanent hair dyes. Hair damage caused by hair dyeing and the fastness of hair dyeing are in opposition, and hair damage increases in the order of temporary hair dyes, semi-permanent hair dyes, and permanent hair dyes. Among the above, as hair dye compositions that are semi-permanent hair dyes, there are types that use anionic dyes and types that combine cationic dyes and nonionic dyes. However, due to the superiority of hair dyeing properties and fastness, the combined type is widely used. As hair dye compositions of this combined type, the following Patent Documents 1 to 3 are known.

Prior Art Documents

Patent Documents

[0005] Patent documents 1 and 2 disclose hair dye compositions that use basic dyes and HC dyes in combination, which have sufficient dyeing properties for hair while suppressing staining properties for the skin. Specifically, Patent document 1 discloses a hair dye composition containing component A (basic blue 124), component B (a dye selected from the group consisting of basic brown 16 and basic brown 17), component C (a dye selected from the group consisting of HC yellow 4 and HC yellow 2), and component D (HC blue 2). Patent document 2 also discloses a hair dye composition containing component A (HC blue 16), component B (one or more dyes selected from the group consisting of basic brown 16 and basic brown 17), component C (one or more dyes selected from the group consisting of HC yellow 4 and HC yellow 2), and component D (HC blue 2). However, since both of these techniques attempt to suppress staining properties for the skin by combining specific dyes, obtaining this effect requires a specific combination of dyes, which results in a lack of freedom in the color variations of the dyed hair.

[0006] Patent Document 3 discloses a hair dye composition that uses both a basic dye and an HC dye, and even in a hair dye composition with a low basic dye content, it has sufficient dyeing properties while preventing the precipitation of HC Blue 2 and HC Yellow 4. Specifically, it discloses a hair dye composition containing (a) 0.5 to 2.0% by weight of HC Blue 2 and / or 0.05 to 0.5% by weight of HC Yellow 4, (b) polyethylene glycol 200 and / or polyethylene glycol 400, (c) cetrimonium chloride and / or steartrimonium chloride, and (d) polyoxyethylene cetyl ether and / or polyoxyethylene stearyl ether, wherein the basic dye content is 0.2% by weight or less of the total amount of the hair dye composition. However, there is no mention of suppressing unintended coloring of areas other than hair.

[0007] This invention has been made in view of the above circumstances, and aims to provide a hair dye composition that can improve hair dyeing power while suppressing unintended dyeing of areas other than hair.

Means for Solving the Problem

[0008] That is, the present invention is as follows. [1] The hair dye composition of the present invention contains the following (A) to (D), and the gist is that (A) / (B) ≦ 0.5. (A): Cationic direct dye (B): Nonionic direct dye (C): Polyalkylene glycol (D): Polyhydric alcohol (excluding the above (C)) [2] In the hair dye composition of the present invention, (C) can be 1.0 to 10% by mass. [3] In the hair dye composition of the present invention, (D) can be 1.0 to 10% by mass.

Effect of the Invention

[0009] According to the hair dye composition of the present invention, it is possible to suppress unintended dyeing to other than hair while improving the hair dyeing power.

Mode for Carrying Out the Invention

[0010] Hereinafter, the present invention will be described in detail. Unless otherwise specified, “%” means “% by mass”, “part” means “part by mass”, and the notation “X to Y” means “X or more and Y or less”. Regarding the names of some compounds, names according to the Japan Cosmetic Industry Association Ingredient Labeling Name List or names according to INCI (INCI: International Nomenclature of Cosmetic Ingredient) are also used. Furthermore, regarding the names of some compounds, regarding the polyoxyalkylene chain, the polyoxyethylene chain may be abbreviated as “POE” and the polyoxypropylene chain may be abbreviated as “POP”. In addition, the numbers in parentheses following these abbreviations represent the number of added moles, respectively.

[0011] The hair dye composition of the present invention (hereinafter also simply referred to as "this composition") contains the following (A) to (D), and is characterized in that (A) / (B) ≤ 0.5. (A): Cationic direct dyes (B): Nonionic direct dyes (C): Polyalkylene glycol (D): Polyhydric alcohols (excluding (C) above)

[0012] [1] Dye (1) Component (A) Component (A), a cationic direct dye, is a cationic dye component that becomes a cation when dissolved in water. In addition, the dye component itself has color and can directly dye hair without involving chemical reactions such as oxidative polymerization. Examples of these cationic direct dyes include basic brown 16, basic brown 17, basic brown 4, basic blue 75, basic blue 99, basic blue 124, basic blue 3, basic blue 7, basic blue 9, basic blue 26, basic blue 47, basic blue 6, basic blue 41, basic blue 77, basic green 1, basic green 4, basic orange 31, basic orange 1, basic orange 2, basic red 51, basic red 2, basic red 22, basic Examples include basic red 46, basic red 76, basic red 1, basic red 118, basic violet 2, basic violet 1, basic violet 3, basic violet 4, basic violet 14, basic violet 16, basic yellow 40, basic yellow 57, basic yellow 87, basic yellow 11, basic yellow 28, HC blue 16, HC orange 6, HC red 17, HC yellow 17, hydroxyanthraquinone aminopropylmethylmorpholinium methosulfate, etc. These cationic direct dyes can exhibit cationic properties by using, for example, a quaternary ammonium group, a phenoxazine ring group, or a phenothiazine ring group as the cationic group. These cationic direct dyes may be used individually or in combination of two or more.

[0013] Among the cationic direct dyes listed above, basic brown 16, basic brown 17, basic blue 75, basic blue 99, basic blue 124, basic red 51, basic violet 2, and HC blue 16 are preferred. These dyes exhibit superior storage stability in this hair dye composition. These cationic direct dyes may be used individually, but it is preferable to use two or more in combination. For example, they can be used in combination so that basic brown 16, basic blue 75, and basic violet 2 are included. This combination of three is preferable for creating a variety of colors (color variations). These three may be used individually, but they can also be used in combination with basic brown 16, basic blue 75, basic violet 2, and basic brown 17. Furthermore, basic brown 16, basic blue 75, basic violet 2, and HC blue 16 can be used in combination. Moreover, basic brown 16, basic blue 75, basic violet 2, basic brown 17, and HC blue 16 can be used in combination.

[0014] The content ratio of component (A) is not limited as long as it satisfies "(A) / (B) ≤ 0.5", but when the entire hair dye composition is considered as 100% by mass, the lower limit is preferably 0.01% by mass, more preferably 0.03% by mass, and still more preferably 0.05% by mass. Furthermore, the lower limit is preferably 0.06% by mass, more preferably 0.08% by mass, and still more preferably 0.10% by mass. When the amount of (A) is 0.01% or more, the hair dyeing power can be further improved. On the other hand, the upper limit is preferably 1.0% by mass, more preferably 0.80% by mass, and still more preferably 0.60% by mass. Furthermore, the upper limit is preferably 0.50% by mass, more preferably 0.40% by mass, and still more preferably 0.20% by mass. When the amount of (A) is 1.0% or less, unintended dyeing of areas other than hair can be further suppressed.

[0015] These lower limit values and upper limit values can be each combination. That is, for example, it is preferably 0.01 to 1.0% by mass, more preferably 0.03 to 0.80% by mass, still more preferably 0.05 to 0.60% by mass, even more preferably 0.06 to 0.50% by mass, particularly preferably 0.08 to 0.40% by mass, and especially preferably 0.10 to 0.20% by mass. In these preferred ranges, while obtaining better hair dyeing power respectively, the effect of suppressing unintended dyeing to other than hair by the use of (C) and component (D) can be obtained higher.

[0016] (2) Component (B) The nonionic direct dye as component (B) is a nonionic dye and is usually a nonionic dye component that does not cationize or anionize even by being water-soluble. In addition, the dye component itself has a color and is a dye component that can directly dye hair without undergoing chemical reactions such as oxidative polymerization, etc. Such dyes generally belong to many dyes called HC dyes. Examples of such nonionic direct dyes include HC Blue 2, HC Blue 8, HC Blue 11, HC Blue 12, HC Blue 14, HC Blue 15, HC Blue 18, HC Blue 19, HC Blue 20, HC Blue 5, HC Blue 6, HC Blue 9, HC Blue 10, HC Blue 13, HC Orange 1, HC Orange 2, HC Orange 7, HC Orange 3, HC Red 1, HC Red 3, HC Red 7, HC Red 10, HC Red 11, HC Red 13, HC Red 18, HC Red 19, HC Red 20, HC Red 21, HC Red 14, HC Violet 1, HC Violet 2, HC Violet 3, HC Violet 4, HC Yellow 2, HC Yellow 4, HC Yellow 5, HC Yellow 7, HC Yellow 9, HC Yellow 11, HC Yellow 13, HC Yellow 16, HC Yellow 18, HC Yellow 6, HC Yellow 10, HC Yellow 12, HC Yellow 14, HC Yellow 15, HC Yellow 19, 2-amino-6-chloro-4-nitrophenol, 2-amino-3-nitrophenol, 4-amino-3-nitrophenol, 3-methylamino-4-nitrophenoxyethanol, 2-nitro-5-glycerylmethylaniline, etc. These nonionic direct dyes may be used alone or in combination of two or more.

[0017] As nonionic direct dyes, among the above, HC Blue 2, HC Blue 8, HC Blue 11, HC Blue 12, HC Blue 14, HC Blue 15, HC Blue 18, HC Blue 19, HC Blue 20, HC Orange 1, HC Orange 2, HC Orange 7, HC Red 1, HC Red 3, HC Red 7, HC Red 10, HC Red 11, HC Red 13, HC Red 18, HC Red 19, HC Red 20, HC Red 21, HC Red 14, HC Violet 1, HC Violet 2, HC Violet 3, HC Violet 4, HC Yellow 2, HC Yellow 4, HC Yellow 5, HC Yellow 7, HC Yellow 9, HC Yellow 11, HC Yellow 13, HC Yellow 16, HC Yellow 18, etc. are preferably used. Among these, the use of especially two kinds, HC Blue 2 and HC Yellow 4, is preferable. These dyes can exhibit better storage stability in the present dyed wool material composition.

[0018] These nonionic direct dyes may be used alone, but it is preferable to use them in combination of two or more kinds. By combining nonionic direct dyes, a rich variety of color variations can be obtained. In addition, the blending of basic dyes can be appropriately suppressed, and as a result, the ground fabric stain caused by basic dyes can be suppressed. Among the nonionic direct dyes, as described above, they can be used in combination so as to include two kinds, HC Blue 2 and HC Yellow 4. These may be used with only two kinds, but furthermore, they can be used in combination of HC Blue 2, HC Yellow 4 and HC Red 13.

[0019] The content ratio of component (B) is not limited as long as it satisfies "(A) / (B) ≤ 0.5", but when the entire hair dye composition is considered as 100% by mass, the lower limit is preferably 0.1% by mass, more preferably 0.2% by mass, and still more preferably 0.25% by mass. Furthermore, it is even more preferable that the lower limit be 0.3% by mass, particularly preferably 0.35% by mass, and especially preferably 0.4% by mass. When the amount of (B) is 0.1% or more, the hair dyeing power can be further improved. On the other hand, the upper limit is preferably 1.5% by mass, more preferably 1.3% by mass, and still more preferably 1.2% by mass. Furthermore, it is even more preferable that the upper limit be 1.0% by mass, particularly preferably 0.8% by mass, and especially preferably 0.6% by mass. When the amount of (B) is 1.5% or less, unintended dyeing of areas other than hair can be further suppressed.

[0020] These lower and upper limits can be any combination. For example, it is preferable to set the amount to 0.1 to 1.5% by mass, more preferably to 0.1 to 1.3% by mass, even more preferably to 0.25 to 1.3% by mass, even more preferably to 0.3 to 1.2% by mass, particularly preferably to 0.35 to 1.0% by mass, and especially preferably to 0.4 to 0.8% by mass. Within these preferred ranges, it is possible to obtain better hair dyeing power while also achieving a higher effect in suppressing unintended dyeing of areas other than hair due to the use of components (C) and (D).

[0021] (3) Mixing ratio of component (A) and component (B) Cationic direct dyes (component (A)) are typically water-soluble and have superior dyeing properties compared to nonionic direct dyes. On the other hand, nonionic direct dyes (component (B)) are typically poorly soluble in water and have superior colorfastness compared to cationic direct dyes. Furthermore, nonionic direct dyes can easily penetrate into the hair cuticle and therefore accumulate inside the hair, improving dyeing power with repeated use. By using these two types of dyes in combination, the advantages of both can be obtained synergistically, resulting in a hair dye composition with particularly excellent dyeing properties and colorfastness. In addition, the combination of multiple dyes can increase the freedom of color variations.

[0022] In this invention, the mixing ratio of component (A) to component (B) is (A) / (B) ≤ 0.5. That is, the ratio of the amount of (A) to the amount of (B) is 0.5 or less. By having (A) / (B) ≤ 0.5, it is possible to obtain excellent hair dyeing power while sufficiently suppressing unintended dyeing of areas other than hair due to the use of components (C) and (D). The upper limit of this mixing ratio (A) / (B) is more preferably 0.48, more preferably 0.43, and even more preferably 0.39. On the other hand, the lower limit of this mixing ratio (A) / (B) is not limited, but for example, it is preferably 0.01. Furthermore, it is more preferably 0.02, even more preferably 0.05, and particularly preferably 0.07.

[0023] These upper and lower limits can be any combination. For example, it is preferable to set them to 0.01 to 0.5 mass%, more preferably to 0.02 to 0.48 mass%, even more preferably to 0.05 to 0.43 mass%, and particularly preferably to 0.07 to 0.39 mass%. Within these preferred ranges, it is possible to obtain better hair dyeing power while also achieving a higher effect in suppressing unintended dyeing of areas other than hair due to the use of components (C) and (D).

[0024] [2] Component (C) Component (C) is polyalkylene glycol. Polyalkylene glycol is included together with component (D) to suppress unintended staining of areas other than hair. Polyalkylene glycols are generally represented as "HO-(RO)nH". In this formula, "R" represents an alkylene group and "n" represents the degree of polymerization. The number of carbon atoms in the alkylene group is not limited, but it is preferably 1 to 5, and more preferably 2 to 4. Specifically, ethylene, propylene, and butylene groups are preferred.

[0025] Examples of polyalkylene glycols having alkylene groups include homopolymers such as polyethylene glycol (PEG), polypropylene glycol (PPG), and polybutylene glycol (PBG). These may be used individually or in combination of two or more. Furthermore, copolymers of two or more of these homopolymers are also included. For example, copolymers of polyethylene glycol and polypropylene glycol (PEG / PPG), copolymers of polyethylene glycol and polybutylene glycol (PEG / PBG), etc. These may be used individually or in combination of two or more. Moreover, the homopolymers and copolymers mentioned above may be used individually or in combination.

[0026] Furthermore, while the range of "n" is not limited, it is preferably between 2 and 500, and more preferably between 2 and 300. Note that "n" can be the average degree of polymerization. The number-average molecular weight of polyalkylene glycol is not limited, but is generally preferred to be 200, more preferably 250, even more preferably 500, even more preferably 800, particularly preferably 950, and especially preferably 1000. On the other hand, the upper limit of the number-average molecular weight of polyalkylene glycol is also not limited, but is preferred to be 10000, more preferably 8000, even more preferably 5000, even more preferably 4000, particularly preferably 2500, and especially preferably 1540.

[0027] These upper and lower limits can be any combination. For example, it is preferable to set them to 200-10000, more preferably 250-8000, even more preferably 500-5000, even more preferably 800-4000, particularly preferably 950-2500, and especially preferably 1000-1540. Within these preferred ranges, it is possible to obtain better hair dyeing power while also achieving a higher effect in suppressing unintended dyeing of areas other than hair due to the use of components (C) and (D). Furthermore, it is possible to suppress stickiness while exhibiting a good conditioning effect.

[0028] Among the above, the polyalkylene glycol is preferably PEG or PPG with a number average molecular weight of 200 to 10000, and more preferably PEG with a number average molecular weight of 1000 to 1540 or PPG with a number average molecular weight of 200 to 1000. With these preferred combinations, it is possible to obtain better dyeing power in each case while also achieving a higher effect in suppressing unintended dyeing of areas other than hair due to the use of components (C) and (D). In addition, it is possible to suppress stickiness while exhibiting a better conditioning effect.

[0029] The content ratio of component (C) is not limited, but when the entire hair dye composition is considered to be 100% by mass, the lower limit is preferably 1.0% by mass, more preferably 1.2% by mass, and still more preferably 1.5% by mass. Furthermore, it is even more preferable that the lower limit be 2.0% by mass, particularly preferable 2.5% by mass, and especially preferable 3.0% by mass. On the other hand, the upper limit is preferably 10% by mass, more preferably 9.5% by mass, and still more preferably 9.2% by mass. Furthermore, it is even more preferable that the upper limit be 9.0% by mass, particularly preferable 8.5% by mass, and especially preferable 8.0% by mass.

[0030] These lower and upper limits can be any combination. For example, it is preferable to set the amount to 0.5 to 10% by mass, more preferably to 1.0 to 10% by mass, even more preferably to 1.5 to 9.5% by mass, even more preferably to 2.5 to 9.0% by mass, particularly preferably to 3.5 to 8.5% by mass, and especially preferably to 4.0 to 8.0% by mass. Within these preferred ranges, it is possible to obtain better hair dyeing power while also achieving a higher effect in suppressing unintended dyeing of areas other than hair due to the use of components (C) and (D). Furthermore, it is possible to obtain a good conditioning effect while suppressing stickiness.

[0031] [3] Component (D) Component (D) is a polyhydric alcohol (excluding component (C)). A polyhydric alcohol is a compound that has two or more hydroxyl groups in its molecule. Specifically, polyhydric alcohols with valencies of 2 to 7 are examples. More specifically, dihydric alcohols, trihydric alcohols, tetrahydric alcohols, pentahydric alcohols, hexahydric alcohols, heptahydric alcohols, etc. These may be used individually or in combination of two or more.

[0032] Among these, dihydric alcohols include alkanediols and oxydialkanols. In the case of alkanediols, it is preferable that the number of carbon atoms in the alkyl group be 2 to 5. For example, ethanediol, propanediol, butanediol, and pentanediol are examples. In the case of oxydialkanols, it is preferable that the number of carbon atoms in the alkylene group be 2 to 3. For example, oxydiethanol and oxydipropanol are examples.

[0033] Among the above, ethanediols include ethylene glycol, etc. Propanediols (propylene glycols) include propane-1,2-diol and trimethylene glycol (1,3-propanediol), etc. Butanediols (butylene glycols) include 1,2-butanediol, 1,3-butanediol, and 1,4-butanediol, etc. Pentanediols include isopentyldiol (isoprene glycol), 1,5-pentanediol, and 1,2-pentanediol, etc. Oxydipropanols include dipropylene glycol, etc. These may be used individually or in combination of two or more. Among these, propylene glycol is preferred from the viewpoint of obtaining a good conditioning effect while suppressing stickiness.

[0034] Examples of trihydric alcohols include alkanetriols. In the case of alkanetriols, the number of carbon atoms in the alkyl group is preferably 3 to 5. Specifically, examples include glycerin (1,2,3-propanetriol), butanetriol (1,2,3-butanetriol, 1,2,4-butanetriol, etc.), and pentanetriol (1,2,3-pentanetriol, 1,2,5-pentanetriol, 2,3,4-pentanetriol, etc.). These may be used individually or in combination of two or more. Among these, glycerin is preferred from the viewpoint of obtaining a good conditioning effect while suppressing stickiness. Other examples of polyhydric alcohols with four or more valencies include sugar alcohols such as sorbitol.

[0035] The content ratio of component (D) is not limited, but when the entire hair dye composition is considered to be 100% by mass, the lower limit is preferably 0.5% by mass, more preferably 1.0% by mass, and still more preferably 1.5% by mass. Furthermore, the lower limit is even more preferably 2.5% by mass, particularly preferably 3.5% by mass, and especially preferably 4.0% by mass. On the other hand, the upper limit is preferably 15% by mass, more preferably 10% by mass, and still more preferably 9.5% by mass. Furthermore, the upper limit is even more preferably 9.0% by mass, particularly preferably 8.5% by mass, and especially preferably 8.0% by mass.

[0036] These lower and upper limits can be any combination. For example, it is preferable to set the amount to 0.5 to 15% by mass, more preferably to 1.0 to 10% by mass, even more preferably to 1.5 to 9.5% by mass, even more preferably to 2.5 to 9.0% by mass, particularly preferably to 3.5 to 8.5% by mass, and especially preferably to 4 to 8% by mass. Within these preferred ranges, it is possible to obtain better hair dyeing power while also achieving a higher effect in suppressing unintended dyeing of areas other than hair due to the use of components (C) and (D). Furthermore, it is possible to obtain a good conditioning effect while suppressing stickiness.

[0037] The ratio of the sum of components (A) and (B) to the sum of components (C) and (D) ((A+B) / (C+D)) is not limited, but its upper limit is preferably 0.2. By keeping it at 0.2 or less, a higher effect in suppressing unintended dyeing of areas other than hair can be obtained. The upper limit of this ratio is more preferably 0.16, and more preferably 0.14. Furthermore, this ratio is even more preferably 0.13, and particularly preferably 0.12. When this ratio is 0.12 or less, it is possible to prevent precipitation due to poor dissolution of the dye while suppressing unintended dyeing of materials other than hair, and this effect is particularly good. On the other hand, although there is no lower limit to this ratio, it can be 0.005, preferably 0.008, more preferably 0.01, even more preferably 0.025, and particularly preferably 0.045. When this ratio is 0.045 or higher, it is possible to obtain particularly excellent hair dyeing power while also having a particularly good effect in suppressing unintended dyeing of areas other than hair.

[0038] These lower and upper limits can be any combination. For example, it is preferable to set them to 0.005 to 0.2, more preferably to 0.008 to 0.15, even more preferably to 0.01 to 0.12, particularly preferably to 0.025 to 0.11, and especially preferably to 0.045 to 0.10. Within these preferred ranges, it is possible to obtain better hair dyeing power while preventing dye precipitation and suppressing unintended dyeing of areas other than hair.

[0039] [4] Other ingredients The hair dye composition of the present invention may optionally contain other components besides the components (A) to (D) described above. Examples of other components include surfactants, oily components, water-soluble polymers other than (C) and (D), polypeptides, amino acids, solubilizers, preservatives, pH adjusters, plant extracts, stabilizers, antioxidants, etc. These may be used individually or in combination of two or more.

[0040] (1) Surfactants The hair dye composition of the present invention may contain surfactants for purposes such as dispersing functional components such as dyes within the composition. Examples of surfactants include cationic surfactants, anionic surfactants, amphoteric surfactants, and nonionic surfactants. These may be used individually or in combination of two or more. Among these, ionic surfactants are preferred, and cationic surfactants are even more preferred. Furthermore, the hair dye composition of the present invention may contain oily components from the viewpoint of improving applicability to hair, washability, and feel of the hair, such as how easily it can be combed. When oily components are included, surfactants can be suitably used from the viewpoint of uniform mixing with hydrophilic components such as components (A) to (D). This can emulsify the entire composition and improve its stability.

[0041] Furthermore, the hair dye composition of the present invention can be a color treatment that has a conditioning effect in addition to the hair dyeing effect of the dye described above. In this case, from the viewpoint of the conditioning effect, it is preferable to use a cationic surfactant as the surfactant. On the other hand, from the viewpoint of formulation stability, it is preferable that the hair dye composition of the present invention does not contain a nonionic surfactant, or if it does, it is less than 1% by mass of the entire hair dye composition.

[0042] Examples of cationic surfactants include alkyl quaternary ammonium salts such as monoalkyl quaternary ammonium salts, dialkyl quaternary ammonium salts, trialkyl quaternary ammonium salts, benzalkonium quaternary ammonium salts, and monoalkyl ether quaternary ammonium salts; amine salts such as alkylamine salts, fatty acid amidoamine salts, ester-containing tertiary amine salts, and Arcover tertiary amine salts; cyclic quaternary ammonium salts such as alkylpyridinium salts and alkylisoquinolium salts; and benzethonium chloride. These may be used individually or in combination of two or more.

[0043] Among these, alkyl quaternary ammonium salts are preferred, more preferably monoalkyl type quaternary ammonium salts and / or dialkyl type quaternary ammonium salts, and even more preferably monoalkyl type quaternary ammonium salts.

[0044] Examples of monoalkyl quaternary ammonium salts include behenyltrimethylammonium chloride (behentrimonium chloride), lauryltrimethylammonium chloride, lauryltrimethylammonium bromide, alkyl(16,18)trimethylammonium chloride, cetyltrimethylammonium chloride (cetrimonium chloride), cetyltrimethylammonium bromide, cetyltrimethylammonium saccharin, stearyltrimethylammonium chloride (steartrimonium chloride), stearyltrimethylammonium bromide, cetyltrimethylammonium saccharin, and stearyltrimethylammonium Examples include ammonium saccharin, distearyldimethylammonium chloride (distearyldimonium chloride), alkyl(28)trimethylammonium chloride, diPOE(2)oleylmethylammonium chloride, diPOEstearylmethylammonium chloride, POE(1)POP(25)diethylmethylammonium chloride, POPmethyldiethylammonium chloride, methacryloyloxyethyltrimethylammonium chloride, dicocoyldimethylammonium chloride, lanolin fatty acid aminopropylethyldimethylammonium ethyl sulfate, and behenyltrimethylammonium methyl sulfate. These may be used individually or in combination of two or more.

[0045] Examples of anionic surfactants include alkyl ether sulfates, POE alkyl ether sulfates, alkyl sulfates, alkenyl ether sulfates, alkenyl sulfates, olefin sulfonates, alkanesulfonates, saturated or unsaturated fatty acid salts, alkyl or alkenyl ether carboxylates, α-sulfone fatty acid salts, N-acyl amino acid type surfactants, phosphate mono or diester type surfactants, and sulfosuccinate esters. These may be used individually or in combination of two or more. Examples of counterions for the anionic groups of these surfactants include sodium ions, potassium ions, and triethanolamine. These may be used individually or in combination of two or more.

[0046] Specifically, examples include disodium lauryl sulfosuccinate, sodium lauryl sulfate, sodium myristyl sulfate, potassium lauryl sulfate, ammonium lauryl sulfate, triethanolamine lauryl sulfate, sodium cetyl sulfate, sodium stearyl sulfate, sodium POE lauryl ether sulfate, triethanolamine POE lauryl ether sulfate, ammonium POE lauryl ether sulfate, sodium POE stearyl ether sulfate, disodium lauryl sulfosuccinate, sodium stearoylmethyltaurate, triethanolamine dodecylbenzenesulfonate, sodium tetradecenesulfonate, sodium lauryl phosphate, POE lauryl ether phosphate and its salts, N-lauroyl glutamates (such as sodium lauroyl glutamate), N-lauroylmethyl-β-alanine salt, N-acylglycine salt, N-acyl glutamate, and higher fatty acids such as lauric acid, myristic acid, and salts of these higher fatty acids. These may be used individually or in combination of two or more.

[0047] Examples of amphoteric surfactants include amino acid-type amphoteric surfactants and betaine-type amphoteric surfactants. Among these, amino acid-type amphoteric surfactants include sodium N-lauroyl-N'-carboxymethyl-N'-hydroxyethylethylenediamine (sodium lauroamphoacetate), 2-alkyl-N-carboxymethyl-N-hydroxyethylimidazolinium betaine, sodium undecylhydroxyethylimidazolinium betaine, alkyldiaminoethylglycine hydrochloride, sodium N-coconut oil fatty acid acyl-N'-carboxyethyl-N'-hydroxyethylethylenediamine, and sodium N-coconut oil fatty acid acyl-N'-carboxyethoxyethyl-N'- Examples include glycine-type amphoteric surfactants such as disodium carboxyethylethylenediamine, disodium N-coconut oil fatty acid acyl-N'-carboxymethoxyethyl-N'-carboxymethylethylenediamine, sodium lauryldiaminoethylglycine, and sodium palm oil fatty acid acyl-N-carboxyethyl-N-hydroxyethylethylenediamine; and aminopropionic acid-type amphoteric surfactants such as sodium laurylaminopropionate, sodium laurylaminodipropionate, and triethanolamine laurylaminopropionate. These may be used individually or in combination of two or more.

[0048] Examples of betaine-type amphoteric surfactants include aminoacetic acid betaine-type amphoteric surfactants such as coconut oil alkyl betaine, lauryldimethylaminoacetic acid betaine, myristyldimethylaminoacetic acid betaine, stearyldimethylaminoacetic acid betaine, stearyldimethylbetaine sodium, coconut oil fatty acid amidopropyl betaine, palm oil fatty acid amidopropyl betaine, lauric acid amidopropyl betaine, ricinoleic acid amidopropyl betaine, and stearyl dihydroxyethyl betaine; and sulfobetaine-type amphoteric surfactants such as lauryl hydroxysulfobetaine. These may be used individually or in combination of two or more.

[0049] Examples of nonionic surfactants include ether-type nonionic surfactants, ester-type nonionic surfactants, and alkyl glucosides. These may be used individually or in combination of two or more.

[0050] Examples of ether-type nonionic surfactants include POE(5.5) cetyl ether (HLB value 10.5), POE(6) cetyl ether (HLB value 10.5), POE(6) cetyl ether (HLB value 10.5), POE(7) cetyl ether (HLB value 11.5), POE(10) cetyl ether (HLB value 13.5), POE(15) cetyl ether (HLB value 15.5), POE(20) cetyl ether (HLB value 17.0), POE(23) cetyl ether (HLB value 18.0), POE(25) cetyl ether (HLB value 18.5), PO POE cetyl ethers (ceteths) such as E(30) cetyl ether (HLB value 19.5), POE(40) cetyl ether (HLB value 20.0), POE(2) cetyl ether (HLB value 8.0), POE(4) cetyl ether (HLB value 8.4), POE(5) cetyl ether (HLB value 9.5); POE(20) stearyl ether (HLB value 18.0), POE(150) stearyl ether (HLB value 19.2), POE(4) stearyl ether (HLB value 9.0), POE(5) stearyl ether (HLB value 9.0), POE(2) stearyl POE stearyl ether (steares) such as ether (HLB value 8.0); POE(10) behenil ether (HLB value 10.0), POE(20) behenil ether (HLB value 16.5), POE(30) behenil ether (HLB value 18.0), POE(150) behenil ether (HLB value 19.1), POE(2) behenil ether (HLB value 4.3), POE(3) behenil ether (HLB value 5.8), POE(5) behenil ether (HLB value 7.0), POE(6) behenil ether (HLB value 8.9), etc. POE behenil ether ( Behenes); POE(7) Oleyl Ether (HLB value 10.5), POE(10) Oleyl Ether (HLB value 14.5), POE(15) Oleyl Ether (HLB value 16.0), POE(20) Oleyl Ether (HLB value 17.0), POE(50) Oleyl Ether (HLB value 18.0), POE(2) Oleyl Ether (HLB value 4.9), POE(3) Oleyl Ether (HLB value 6.6), etc. POE Oleyl Ether (Oles); POE(4.2) Lauryl Ether (HLB value 11.5), POE(9) Lauryl Ether (HLB value 14.5) POE lauryl ethers (laureth) such as POE(10) lauryl ether (HLB value 14.5), POE(21) ​​lauryl ether (HLB value 19.0), POE(25) lauryl ether (HLB value 19.5), POE(2) lauryl ether (HLB value 9.5), POE(3) lauryl ether (HLB value 8.4); POE myristyl ethers such as POE(2) myristyl ether (HLB value 5.8), POE(3) myristyl ether (HLB value 7.7); POE octyldodecyl ethers such as POE(2) octyldodecyl ether (HLB value 4.6), POE(5) octyldodecyl ether (HLB value 8.5); POE(2) hexyldecyl ether (HLB value 5.3), POE(4) hexyl Examples include POE hexyldecyl ethers such as doldecyl ether (HLB value 8.4); POE isostearyl ethers such as POE(5) isostearyl ether (HLB value 7.0); POE nonylphenyl ether; POE octylphenyl ether; POE polyoxypropylene cetyl ethers such as POE(10)POP(4) cetyl ether (HLB value 10.5), POE(20)POP(4) cetyl ether (HLB value 16.5), POE(20)POP(8) cetyl ether (HLB value 12.5), and POE(1)POP(4) cetyl ether (HLB value 9.5); and POE polyoxypropylene decyltetradecyl ethers such as POE(12)POP(6) decyltetradecyl ether (HLB value 8.5). These may be used individually or in combination of two or more.

[0051] The HLB values ​​for each compound are listed as reference values ​​based on the figures provided in the Nikko Chemicals Co., Ltd. catalog (2014). These HLB values ​​can be measured according to "20.3.1 Measurement of HLB values ​​by emulsification method" (pages 854-855) described in the "Handbook - Cosmetics and Pharmaceutical Raw Materials - Revised Edition (March 1, 1978, Nikko Chemicals Co., Ltd.)".

[0052] Examples of ester-type nonionic surfactants include POE sorbitan fatty acid esters such as POE sorbitan monooleate, POE sorbitan monostearate, POE sorbitan monopalmitate, POE sorbitan monolaurate, and POE sorbitan trioleate; glyceryl mono fatty acid esters such as POE glycerin monostearate and POE glycerin monomyristate; and POE sorbitol fatty acid esters such as POE sorbitan tetraoleate, POE sorbitan hexastearate, and POE sorbitan monolaurate. The number of moles of POE added to POE sorbitan fatty acid esters and monoglyceryl mono fatty acid esters is, for example, 5 or more. The number of moles of POE added to POE sorbitol fatty acid esters is, for example, 6 or more. Other examples of ester-type nonionic surfactants include sorbitol beeswax such as POE(6)POE sorbitol beeswax, polyethylene glycol monooleate, polyethylene glycol monostearate, 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. These may be used individually or in combination of two or more.

[0053] Although the surfactant content is not limited, when the entire composition is considered to be 100% by mass, the lower limit can be 0.01% by mass, preferably 0.1% by mass, and more preferably 0.8% by mass. On the other hand, the upper limit can be 30% by mass, preferably 20% by mass, and more preferably 10% by mass. The above-mentioned lower and upper limits can be any combination; for example, it is preferably 0.01 to 30% by mass, more preferably 0.1 to 20% by mass, and even more preferably 0.8 to 10% by mass. However, as mentioned above, from the viewpoint of formulation stability, it is preferable that the hair dye composition does not contain nonionic surfactants, or if it does, that the amount is less than 1% by mass relative to 100% by mass of the entire hair dye composition.

[0054] (2) Oily components Examples of oily components include higher alcohols (except for component (C)), hydrocarbons, high molecular weight compounds, esters, oils and fats, waxes, higher fatty acids, silicones, fluorinated oils, alkyl glyceryl ethers, etc. These may be used individually or in combination of two or more. Oily components can be added, for example, to provide moisture to the hair.

[0055] Higher alcohols can be alcohols with carbon chains containing six or more carbon atoms. For example, higher alcohols with carbon atoms between eight and forty are included. Furthermore, their skeletons can be saturated or unsaturated, and can be linear or branched. Specifically, examples include cetearyl alcohol, lauryl alcohol, myristyl alcohol, cetyl alcohol (cetanol), stearyl alcohol, arachidodecanol, behenyl alcohol, 2-hexyldecanol, isostearyl alcohol, 2-octyldodecanol, decyltetradecanol, oleyl alcohol, linoleyl alcohol, linolenyl alcohol, lanolin alcohol, phytosterol, and cholesterol. These can be used individually or in combination of two or more.

[0056] Examples of hydrocarbons include liquid paraffin, liquid isoparaffin, paraffin (paraffin wax), olefin oligomers, polyisobutene, hydrogenated polyisobutene, mineral oil, synthetic squalane, squalene, squalane (hydrogenated squalene), polybutene, polyethylene (polyethylene wax), microcrystalline wax, petrolatum, ozokerite, ceresin, limonene, and turpentine oil. These may be used individually or in combination of two or more.

[0057] While the polymeric compounds used are not limited, cationized cellulose derivatives are particularly preferred in this composition. Other options include cationic starch, cationized guar gum, polymers or copolymers of diallyl quaternary ammonium salts, and quaternized polyvinylpyrrolidone. These may be used individually or in combination of two or more.

[0058] Examples of cationized cellulose derivatives include O-[2-hydroxy-3-(trimethylammonio)propyl]hydroxyethylcellulose chloride (i.e., polyquaternium-10), O-[2-hydroxy-3-(lauryldimethylammonio)propyl]hydroxyethylcellulose chloride, and hydroxyethylcellulose dimethyldiallylammonium chloride (i.e., polyquaternium-4). Examples of polymers or copolymers of diallyl quaternary ammonium salts include dimethyldiallylammonium chloride polymer (polydimethylmethylenepiperidinium chloride, i.e., polyquaternium-6), dimethyldiallylammonium chloride / acrylic acid copolymer (i.e., polyquaternium-22), and acrylic acid / diallyl quaternary ammonium salt / acrylamide copolymer (polyquaternium-39). Examples of quaternary polyvinylpyrrolidone include quaternary ammonium salts (i.e., polyquaternium-11) obtained from copolymers of vinylpyrrolidone and dimethylaminoethyl methacrylate and diethyl sulfate. These may be used individually or in combination of two or more types.

[0059] Other polymer compounds include anionic polymers such as carboxyvinyl polymers and water-soluble polymers. Examples of water-soluble polymers include plant-derived polymers such as gum arabic, xanthan gum, carrageenan, pectin, agar, starch, and algae colloids (brown algae extract), microbial polymers such as dextran and pullulan, starch-based polymers such as carboxymethyl starch and methylhydroxypropyl starch, cellulose-based polymers such as methylcellulose, ethylcellulose, nitrocellulose, and hydroxyethylcellulose, alginate-based polymers such as sodium alginate, and vinyl-based polymers such as carboxyvinyl polymers. These may be used individually or in combination of two or more.

[0060] Esters include isodecyl neopentanoate, isostearyl neopentanoate, 2-octyldodecyl neopentanoate, hexyldecyl neodecanoate, octyldodecyl neodecanoate, isostearyl isostearate, isopropyl isostearate, ethyl isostearate, octyldodecyl isostearate, hexyl isostearate, 2-hexyldecyl isostearate, isodecyl isononanoate, isotridecyl isononanoate, isononyl isononanoate, 2-ethylhexyl isononanoate, and octyl isopalmitate. , 2-ethylhexanoate isostearyl, 2-ethylhexanoate stearyl, 2-ethylhexanoate cetyl, 2-ethylhexanoate cetostearyl, 2-ethylhexanoate 2-hexyldecyl, 12-stearoylstearate isostearyl, 12-stearoylstearate isocetyl, 12-stearoylstearate octyldodecyl, di-2-ethylhexanoate ethylene glycol, monoisostearate N-alkyl glycol, tetraethylhexanoate pentaerythrityl (tetraoctanoate pentaerythrityl), octane Cetyl acid, isononyl isononanoate, pentaerythritol tetraisostearate, isopropyl myristate, isopropyl palmitate, octyldodecyl myristate, diisopropyl adipate, diisobutyl adipate, 2-ethylhexyl palmitate, 2-ethylhexyl stearate, stearyl stearate, myristyl myristate, 2-octyldodecyl myristate, isotridecyl myristate, propylene glycol isostearate, glyceryl tri-2-ethylhexanoate, propylene glycol myristate Propylene glycol monostearate, propylene glycol monolaurate, polyglyceryl isostearate, octyldodecyl ricinoleate, hydrogenated castor oil isostearate, C10-C30 fatty acid cholesteryl / lanosteryl, cetyl lactate, lanolin acetate, pentaerythritol fatty acid ester, dipentaerythritol fatty acid ester (dipentaerythritol fatty acid ester), cetyl caprate, glyceryl tricaprylate, diisostearyl malate, dioctyl succinate, etc. can be used. These may be used individually or in combination of two or more.

[0061] Examples of oils and fats include vegetable oils (vegetable fats) and animal oils (animal fats). These may be used individually or in combination of two or more. Examples of vegetable oils include macadamia seed oil, meadowfoam oil, jojoba seed oil, rice germ oil, sunflower seed oil, olive oil, grape seed oil, almond oil, apricot kernel oil, peach kernel oil, peach kernel oil, peach kernel oil, shea butter, rosehip oil, camellia oil, tea seed oil, sasanqua oil, argania spinosa kernel oil, safflower oil, sunflower oil, soybean oil, cottonseed oil, sesame oil, cocoa butter, corn oil, peanut oil, rapeseed oil, evening primrose oil, rice bran oil, rice germ oil, wheat germ oil, Job's tears oil, avocado oil, carrot oil, castor oil, linseed oil, coconut oil, palm oil, etc. Other examples of animal fats include beef tallow, lard, mink oil, and egg yolk oil.

[0062] Examples of waxes include beeswax, candelilla wax, carnauba wax, jojoba oil, lanolin, whale wax, rice bran wax, sugarcane wax, palm wax, montan wax, cotton wax, bayberry wax, privet wax, kapok wax, and shellac wax. These can be used individually or in combination of two or more.

[0063] Examples of higher fatty acids include lauric acid, myristic acid, palmitic acid, stearic acid, behenic acid, isostearic acid, hydroxystearic acid, 12-hydroxystearic acid, oleic acid, undecylenic acid, linoleic acid, ricinoleic acid, and lanolinic acid. These may be used individually or in combination of two or more.

[0064] Examples of silicones include dimethylpolysiloxane (dimethicone), methylphenylpolysiloxane, decamethylcyclopentasiloxane, dodecamethylcyclohexasiloxane, terminal hydroxyl group-modified dimethylpolysiloxane, highly polymerized silicones with an average degree of polymerization of 650 to 10000, polyether-modified silicones, amino-modified silicones such as aminoethylaminopropylsiloxane-dimethylsiloxane copolymer (amodimethicone), betaine-modified silicones, alkyl-modified silicones, alkoxy-modified silicones, mercapto-modified silicones, carboxy-modified silicones, and fluorine-modified silicones.

[0065] Although the content of oily components is not limited, when the entire composition is considered to be 100% by mass, the lower limit can be 0.1% by mass, preferably 1% by mass, and more preferably 3% by mass. On the other hand, the upper limit can be 50% by mass, preferably 30% by mass, and more preferably 15% by mass. The above-mentioned lower and upper limits can be any combination; for example, it is preferably 0.1 to 50% by mass, more preferably 1 to 30% by mass, and even more preferably 3 to 15% by mass.

[0066] (3) Water-soluble polymers Examples of water-soluble polymers include organic and inorganic polymers other than (C) and (D). These may be used individually or in combination of two or more. Organic polymers include natural polymers such as starch, guar gum, locust bean gum, quince seed, carrageenan, galactan, gum arabic, tragacanth gum, pectin, mannan, xanthan gum, dextran, succinoglucan, curdlan, hyaluronic acid, gelatin, casein, albumin, collagen, hydrolyzed collagen, dextrin, triglucopolysaccharide (pullulan); methylcellulose, ethylcellulose, hydroxyethylcellulose, hydroxyethylcellulose dimethyldiallylammonium chloride, hydroxypropylcellulose, carboxymethylcellulose, sodium carboxymethylcellulose, hydroxypropylmethylcellulose, cationized cellulose, cationized guar gum, starch phosphate ester, and Examples include semi-synthetic polymers such as propylene glycol ester ginate and alginates; polyvinyl caprolactam, polyvinyl alcohol (PVA), polyvinylpyrrolidone (PVP), vinylpyrrolidone-vinyl acetate (VP / VA) copolymer, polyvinyl butyral, polyvinyl methyl ether, carboxyvinyl polymer, sodium polyacrylate, polyacrylamide, acrylic acid / alkyl acrylate copolymer, polydimethylmethylene piperidinium chloride (polyquaternium-6), and synthetic polymers such as a semi-ester of itaconic acid and POE alkyl ether, or an ester of methacrylic acid and POE alkyl ether, and a copolymer consisting of at least one monomer selected from acrylic acid, methacrylic acid, and their alkyl esters; and so on. These may be used individually or in combination of two or more. By using these water-soluble polymers, for example, the viscosity of hair dye compositions can be adjusted.

[0067] (4) Polypeptides Polypeptides include animal proteins, plant proteins, their hydrolysates (hydrolyzed proteins), and cationized hydrolyzed proteins. These may be used individually or in combination of two or more types. Among these, animal proteins include keratin, collagen, silk, conchiolin, elastin, fibroin, casein, and gelatin. These may be used individually or in combination of two or more. Plant proteins include plant proteins obtained from plants such as soybeans, wheat, barley, oats, and almonds (soy protein, wheat protein, barley protein, oat protein, and almond protein). Furthermore, hydrolyzed proteins include components obtained by hydrolyzing the various proteins mentioned above with acids, alkalis, enzymes, etc. Cationized hydrolyzed proteins include components obtained by cationizing hydrolyzed proteins with denaturing agents, and components obtained by hydrolyzing pre-denatured cationized proteins. Examples of hydrolyzed proteins include hydrolyzed keratin, hydrolyzed collagen, hydrolyzed silk, hydrolyzed conchiolin, and hydrolyzed soy protein. These may be used individually or in combination of two or more.

[0068] (5) Amino acids Examples include amino acids such as aspartic acid, glutamic acid, glycine, alanine, theanine, arginine, histidine, and threonine, and their salts; and amino acid-like compounds such as taurine. These may be used individually or in combination of two or more. By using these amino acids, for example, the shine of hair can be improved.

[0069] (6) Solubilizer Examples of solubilizers include lower alcohols (excluding component (C)) and aromatic alcohols. Specifically, examples include monohydric lower alcohols with 5 or fewer carbon atoms such as ethanol, n-propanol, and isopropanol, and aromatic alcohols such as benzyl alcohol, 2-phenylethyl alcohol, cinnamyl alcohol, phenylpropanol, 1-phenoxy-2-propanol, phenyl glycol, α-methylbenzyl alcohol, dimethylbenzylcarbinol, benzyloxyethanol, phenoxyethanol, phenoxyisopropanol, and p-anisyl alcohol. These may be used individually or in combination of two or more.

[0070] (7) Preservatives Examples of preservatives include phenoxyethanol, methylparaben, ethylparaben, propylparaben, isopropylparaben, butylparaben, isobutylparaben, and sodium benzoate. These may be used individually or in combination of two or more.

[0071] (8) pH adjusters Examples of pH adjusters include organic acids such as malic acid, pyrrolidone carboxylic acid, succinic acid, citric acid, tartaric acid, and lactic acid; amino acids such as glutamic acid and arginine; organic sulfonic acids such as taurine; inorganic acids such as phosphoric acid, hydrochloric acid, sulfuric acid, and boric acid; and their salts (sodium salts, potassium salts, ammonium salts, etc.). These may be used individually or in combination of two or more.

[0072] (9) Plant extracts The plant extracts include avocado extract, hydrangea extract, aloe extract, apricot extract, apricot kernel extract, ginkgo extract, fennel extract, turmeric extract, scutellaria extract, phellodendron bark extract, St. John's wort extract, orange extract, seaweed extract, chamomile extract, chamomile extract, licorice extract, gardenia extract, bamboo grass extract, grapefruit extract, mulberry extract, cranberry extract, burdock extract, bamboo grass extract, hawthorn extract, sansho pepper extract, mallow extract, rehmannia extract, perilla extract, linden extract, peony extract, ginger extract, and Examples include birch extract, horsetail extract, sage extract, hawthorn extract, thyme extract, tea extract, clove extract, houttuynia cordata extract, hibiscus extract, witch hazel extract, parsley extract, loquat extract, loofah extract, safflower extract, peppermint extract, linden extract, hop extract, pine extract, horse chestnut extract, soapberry extract, eucalyptus extract, yuzu extract, coix seed extract, mugwort extract, lychee extract, lavender extract, apple extract, lemon extract, astragalus extract, rose extract, rosemary extract, and Roman chamomile extract. These can be used individually or in combination of two or more.

[0073] (10) Stabilizers Examples of stabilizers include phenacetin, 8-hydroxyquinoline, acetanilide, sodium pyrophosphate, barbiturates, uric acid, and tannic acid. These may be used individually or in combination of two or more.

[0074] (11) Antioxidants Examples of antioxidants include ascorbic acid (L-ascorbic acid) and anhydrous sodium sulfite. These may be used individually or in combination of two or more.

[0075] In addition to the above, the product may also contain sugars (such as maltose, glycosyl trehalose, and N-acetylglucosamine), inorganic salts (such as sodium chloride and sodium carbonate), buffering agents (such as sodium phosphate), chelating agents (such as edetate and its salts, diethylenetriaminepentaacetic acid and its salts, hydroxyethanediphosphonic acid and its salts), vitamins, fragrances, colorants, and ultraviolet absorbers, as well as at least one ingredient selected from those listed in the "Standards for Ingredients of Quasi-Drugs" (published June 2006, Yakuji Nippo Co., Ltd.). These may be used individually or in combination of two or more.

[0076] [5] Form and use of hair dye composition The dosage form of this composition (dosage form at 25°C) is not limited and can be appropriately selected according to the application and purpose. For example, it can be a cream, emulsion (lotion), dispersion, paste, foam, liquid, aqueous solution, gel, solid, etc. Furthermore, this composition may be used as a single-component formula or as a multi-component formula divided into two or more components. In the case of a multi-component formula, it may be mixed before use or used sequentially individually.

[0077] The use of this composition is not limited and it can be used as a shampoo, rinse, conditioner, treatment, color cream, pre-treatment agent, post-treatment agent, etc., but it is particularly preferable to use it as a color treatment, color conditioner, color rinse, color shampoo, etc. With these, the composition can be applied to the hair during daily hair care, and as a result, continuous hair coloring can be achieved by repeating the hair coloring treatment. Among the above, it is particularly preferable to use this composition as a color treatment, color conditioner, color rinse, etc., which has a hair conditioning effect in addition to a hair coloring effect.

[0078] This composition may be applied to hair that is wet with water or warm water, or to dry hair. After application, it may or may not be rinsed off. Furthermore, the method of application of this composition to the hair is not limited and can be used by applying it with fingers, by spraying, or by using a comb or brush. Among these, it is preferable to wash the hair with shampoo before applying the hair dye composition to the hair. After washing, it can be applied according to the usual treatment or rinse procedure. After the hair dye composition is applied to the hair, it can be left to stand for a predetermined time. After that, the composition applied to the hair can be rinsed with water according to the usual method. Furthermore, the hair can be dried according to the usual method.

[0079] This hair dye composition can be applied to any type of hair. That is, it can be applied to black hair, white hair, bleached hair (black hair that has been bleached), etc., but it is most suitable for application to white hair from the standpoint of hair dyeing effect. [Examples]

[0080] The present invention will be described in more detail below with reference to examples, but these examples are merely illustrative examples for explanatory purposes, and the present invention is not limited in any sense to these examples.

[0081] [1] Preparation of hair dye composition The hair dye compositions of Examples 1-26 and Comparative Examples 1-5 were prepared by mixing the components listed below in the mass ratios shown in Tables 1-4. The preparation method is as follows.

[0082] (1) Preparation method The hair dye compositions of Examples 1-26 and Comparative Examples 1-5 are all one-component hair dye compositions containing all components, and were obtained by the following procedure. Specifically, each component except silicone was placed in a container and emulsified at 80°C to obtain an emulsion. Then, the silicone was added to the obtained emulsion, and purified water was added and mixed to make a total of 100% to obtain the creamy emulsions of the hair dye compositions of Examples 1-26 and Comparative Examples 1-5. A mixing machine, "Emulsification Tester ET-SA type" (manufactured by Nikko Chemicals Co., Ltd.), was used for mixing.

[0083] (2) Details of the ingredients The components shown in Tables 1-4 are as follows: [Component (A)] Cationic direct dye (A) Basic Violet 2 (A) Basic tea 16 (A) Basic tea 17 ·(A)HC Blue 16 (A) Basic Blue 75

[0084] [Component (B)] Nonionic direct dye ·(B)HC blue 2 ·(B)HC yellow 4

[0085] [Ingredients (C)] Polyalkylene glycol • (C)PEG1000: Polyethylene glycol (average molecular weight 1000) (C)PPG400: Polypropylene glycol (average molecular weight 400) • (C)PEG400: Polyethylene glycol (average molecular weight 400)

[0086] [Component (D)] Polyhydric alcohol (D) Glycerin (D) Propylene glycol

[0087] [Other ingredients] Cetanol • Stearyl alcohol Behentrimonium chloride HEC: Hydroxyethylcellulose • Citric acid Dimethicone • Ceteth-2: Cetanol PEG(2) ether (nonionic surfactant)

[0088] [2] Evaluation of hair dye compositions (1) Hair dyeing treatment The hair dyeing treatment was performed according to the following procedure.

[0089] (1-2) Hair dyeing treatment A 10cm long sample of white hair (manufactured by Beaulux Co., Ltd.) (hereinafter simply referred to as "hair bundle") was shampooed once with shampoo (Bigen Treatment Shampoo manufactured by Hoyu Co., Ltd.). Then, each hair dye composition from Examples 1 to 26 and Comparative Examples 1 to 5 was brushed onto the hair bundle in a ratio of 1g of hair dye composition per 1g of hair bundle. Five minutes after application, the composition adhering to the hair bundle was rinsed off with water. Subsequently, the hair bundle was dried with warm air to obtain the dyed hair bundles for each example.

[0090] (1-3) Evaluation of hair dyeing power The hair strands treated with dyeing in the above steps (1-2) were visually observed by expert panelists specializing in hair dye evaluation under a standard light source, and the intensity of the dyeing effect of each hair dye composition was evaluated. Prior to the evaluation, all panelists conducted a standardized sample evaluation to standardize each score on the evaluation criteria, and then 10 panelists conducted an objective evaluation. The evaluation followed the five-point scale shown in 1-5 below. Furthermore, each panelist selected the number that best represented their own evaluation from the five-point scale.

[0091] 5: Very well dyed 4: Well dyed 3: Stained 2: The color is slightly lighter. 1: The dye is not deep enough.

[0092] Subsequently, the average score for each panelist was calculated, and the evaluation results were determined as follows: an average of 4.6 points or higher was rated "Excellent: 5", 3.6 points or higher but less than 4.6 points was rated "Good: 4", 2.6 points or higher but less than 3.6 points was rated "Acceptable: 3", 1.6 points or higher but less than 2.6 points was rated "Slightly Poor: 2", and less than 1.6 points was rated "Poor: 1". The results are shown in the "Hair Dyeing Power" column of Tables 1-4.

[0093] (2) Evaluation of scalp stains (2-1) Dyeing the scalp In the evaluation model (healthy adult), 0.1 g of each hair treatment composition was applied in a circular pattern to an area of ​​approximately 1 cm in diameter on the inner side of the dry forearm, left for 5 minutes, and then rinsed with water. Furthermore, the applied area was washed twice using Bigen Treatment Shampoo Composition manufactured by Hoyu Co., Ltd.

[0094] (2-2) Evaluation of scalp stains The scalp after dyeing, as described in (2-1) above, was visually observed under a standard light source by a panel of experts specializing in scalp stain evaluation. The presence and intensity of scalp staining (i.e., scalp staining) by each hair dye composition were evaluated. Prior to the evaluation, all panelists conducted a standardized sample evaluation to standardize each score on the evaluation criteria, and then five panelists conducted objective evaluations. The evaluation followed the five-point scale shown in 1-5 below. Furthermore, each panelist selected the number that best represented their own evaluation from the five-point scale.

[0095] 5: No scalp stains are observed. 4: A discoloration that could be interpreted as scalp staining is observed. 3: Some scalp stains are present, but not noticeable. 2: Noticeable scalp stains are present, but they can be made less noticeable by washing. 1: Noticeable scalp stains were observed, and the stains could not be removed by washing.

[0096] Subsequently, the average score for each panelist was calculated, and the evaluation results were determined as follows: an average of 4.6 points or higher was rated "Excellent: 5", 3.6 points or higher but less than 4.6 points was rated "Good: 4", 2.6 points or higher but less than 3.6 points was rated "Acceptable: 3", 1.6 points or higher but less than 2.6 points was rated "Slightly Poor: 2", and less than 1.6 points was rated "Poor: 1". The results are shown in the "Scalp Stain Control" column of Tables 1-4.

[0097] (3) Evaluation of tile stains (3-1) Dyeing the tiles For evaluation, we prepared TOTO MX305 #NW1 tiles. 0.1g of each hair treatment composition was applied to an area of ​​approximately 2cm in diameter on these tiles and left to stand. After 10 minutes, the area was rinsed with water.

[0098] (3-2) Evaluation of tile stains The dyed tiles obtained in (3-1) above were visually observed under a standard light source by a panel of experts in tile stain evaluation, and the intensity of the dyeing by each hair dye composition was evaluated. Prior to the evaluation, all panelists conducted a standardized sample evaluation to standardize each score on the evaluation criteria, and then five panelists conducted objective evaluations. The evaluation followed the six-point scale shown in 1-6 below. Furthermore, each panelist selected the number that best represented their own evaluation from the six-point scale.

[0099] 6: No tile stains were observed. 5: Discoloration that could be interpreted as tile staining is observed. 4: Although some stains are present on the tiles, they are not noticeable. 3: Noticeable tile stains are present, but they can be made less noticeable by cleaning. 2: Noticeable tile stains are present, but their appearance can be reduced by cleaning. 1: Noticeable tile stains were observed, and the stains could not be removed by cleaning.

[0100] Subsequently, the average score for each panelist was calculated, and the following ratings were used: an average of 5.6 or higher was rated as "Outstanding: 6", 4.6 or higher and less than 5.6 as "Good: 5", 3.6 or higher and less than 4.6 as "Good: 4", 2.6 or higher and less than 3.6 as "Acceptable: 3", 1.6 or higher and less than 2.6 as "Slightly Poor: 2", and less than 1.6 as "Poor: 1". These ratings were used as the evaluation results. The results are shown in the "Tile Stain Prevention" column of Tables 1-4.

[0101] (4) Evaluation of dye solubility The hair dye compositions prepared in [1] above were stored at -10°C (i.e., an environment where dye precipitation is more likely to occur than at room temperature) for two weeks, and the solubility of the dye was evaluated visually and under a microscope. The evaluation was performed according to the five-point scale shown in 1 to 5 below. 5: Excellent (No dye precipitation can be observed, either visually or under a microscope) 4: Good (Slight dye precipitation is not visible to the naked eye, but is visible under a microscope.) 3: Acceptable (Many dye precipitates are not visible to the naked eye, but are visible under a microscope.) 2: Slightly defective (Slight dye precipitation visible to the naked eye) 1: Defective (Many visible dye deposits)

[0102] (5) Evaluation of formulation stability The hair dye composition prepared in [1] above was stored for one month at 5°C (a suitable temperature for storing hair dye compositions) to obtain "Storage Product A," and stored for one month at 50°C (a temperature unsuitable for storing hair dye compositions) to obtain "Storage Product B." Using these Storage Products A and B, hair dyeing treatments were performed in the same manner as in [2](1) above, and the extent to which "Hair Dye Color B" obtained from "Storage Product B" changed (e.g., change in hue) from "Hair Dye Color A" was evaluated, using "Hair Dye Color A" obtained from "Storage Product A" as a baseline. Prior to the evaluation, all expert panelists in hair dye color evaluation performed a standard sample evaluation to standardize each score of the evaluation criteria, and then 10 people performed an objective evaluation. The evaluation followed the five-level criteria shown in 1 to 5 below. 5: Excellent (No difference can be observed between "hair dye color A" and "hair dye color B") 4: Good (Slight difference observed between "Dyed Hair Color A" and "Dyed Hair Color B") 3: Acceptable (The difference between "hair dye color A" and "hair dye color B" is acknowledged) 2: Slightly poor (A slightly large difference is observed between "hair dye color A" and "hair dye color B") 1: Poor (A significant difference is observed between "hair dye color A" and "hair dye color B")

[0103] Subsequently, the average score for each panelist was calculated, and the evaluation results were determined as follows: an average of 4.6 points or higher was rated "Excellent: 5", 3.6 points or higher but less than 4.6 points was rated "Good: 4", 2.6 points or higher but less than 3.6 points was rated "Acceptable: 3", 1.6 points or higher but less than 2.6 points was rated "Slightly Poor: 2", and less than 1.6 points was rated "Poor: 1".

[0104] [Table 1]

[0105] [Table 2]

[0106] [Table 3]

[0107] [Table 4]

[0108] [3] Effects of the example This hair dye composition contains four components, (A) to (D), and the gist of it is that (A) / (B) ≤ 0.5. In Comparative Example 1 (Table 4), which does not contain component (A), the hair dyeing power evaluation is less than 3, which is insufficient. In Comparative Example 2 (Table 4), which does not contain component (B), the evaluations for scalp stain suppression and tile stain suppression are both less than 3, which is insufficient. In Comparative Example 3 (Table 4), which does not contain component (C), the evaluations for scalp stain suppression and tile stain suppression are both less than 3, which is insufficient. In Comparative Example 5 (Table 4), where (A) / (B) > 0.5, the evaluations for scalp stain suppression and tile stain suppression are both less than 3, which is insufficient. Furthermore, in Comparative Example 4 (Table 4), which does not contain component (D), the evaluation of dye solubility is less than 3, making it difficult to establish it as a valid hair dye composition. In contrast, Examples 1 to 26, which contain all four components (A) to (D) and have (A) / (B) ≤ 0.5, show excellent results with evaluations of 3 or higher for hair dyeing power, scalp stain suppression, and tile stain suppression.

[0109] In Examples 1 to 5, where the amount of component (D) was 0.8 to 11% by mass, the evaluation for suppressing surface staining was 5 in all cases, and the evaluation for suppressing tile staining was 6 in all cases, indicating that they are extremely excellent. However, it can be seen that increasing the amount of component (D) affects the dye strength. From this point of view, it is preferable to keep the amount of component (D) at 10% by mass or less. Also, from the perspective that decreasing the amount of component (D) affects the solubility of the dye, the amount of component (D) can be 1.0% by mass or more.

[0110] In Examples 1, 6-9, where the amount of component (C) is 0.8-11% by mass, it can be seen that there is a trade-off between hair dyeing power and the effects of preventing scalp staining and tile staining. That is, when the amount of component (C) is small, the dyeing power is excellent, but the effects of preventing scalp staining and tile staining tend to decrease. On the other hand, when the amount of component (C) is large, the effects of preventing scalp staining and tile staining are excellent, but the hair dyeing power tends to decrease. Therefore, from the viewpoint of obtaining a high score of 4 or higher for all evaluations, it is preferable to set the amount of component (C) to 0.1-10% by mass.

[0111] In Examples 1, 10-13, where the amount of component (B) is 0.09-1.6% by mass, it can be seen that there is a slight trade-off between the effects of hair dyeing power and scalp stain suppression. Specifically, it can be seen that as the amount of component (B) decreases, the scalp stain suppression and tile stain suppression are excellent, but the hair dyeing power tends to decrease. On the other hand, it can be seen that as the amount of component (B) increases, the dyeing power is excellent, but the scalp stain suppression tends to decrease slightly. Therefore, from the viewpoint of obtaining a high score of 4 or higher for all evaluations, it can be seen that the amount of component (B) is preferably 0.1-1.5% by mass. Furthermore, from the viewpoint that a higher amount of component (B) affects the solubility of the dye, it can be seen that it is preferable to keep the amount of component (B) at 1.5% by mass or less.

[0112] In Examples 1, 14-16, where the amount of component (A) is 0.009-0.7% by mass, it can be seen that there is a trade-off between hair dyeing power and the effects of preventing scalp staining and tile staining. That is, when the amount of component (A) is small, the effects of preventing scalp staining and tile staining are excellent, but the hair dyeing power tends to decrease. On the other hand, when the amount of component (A) is large, the dyeing power is excellent, but the effects of preventing scalp staining and tile staining tend to decrease. Therefore, from the viewpoint of obtaining a high score of 4 or higher for all evaluations, it is preferable to set the amount of component (A) to 0.01-0.6% by mass.

[0113] Furthermore, in Examples 17 and 18, which contained nonionic surfactants, it was found that the formulation stability tended to decrease with increasing amounts of the surfactant. Therefore, from the viewpoint of ensuring formulation stability, it is preferable that the amount of nonionic surfactant be 1.0% by mass or less, or that the formulation be substantially free of nonionic surfactants.

Claims

1. The following (A) to (D) are included, and when the entire hair dye composition is considered to be 100% by mass, The ratio of the mass proportion of (A) to the mass proportion of (B) is (A) / (B) ≤ 0.

5. A hair dye composition characterized in that (C) is 2.0% by mass or more, and (D) is 2.0% by mass or more. (A): Cationic direct dyes (B): Nonionic direct dyes (C): Polyalkylene glycol (D): Polyhydric alcohols (excluding (C) above)

2. The hair dye composition according to claim 1, wherein (C) is 2.0 to 10% by mass.

3. The hair dye composition according to claim 1 or 2, wherein (D) is 2.0 to 10% by mass.

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